CN110388391B - Roller type overrunning clutch - Google Patents
Roller type overrunning clutch Download PDFInfo
- Publication number
- CN110388391B CN110388391B CN201910754492.6A CN201910754492A CN110388391B CN 110388391 B CN110388391 B CN 110388391B CN 201910754492 A CN201910754492 A CN 201910754492A CN 110388391 B CN110388391 B CN 110388391B
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- Prior art keywords
- roller
- overrunning clutch
- force application
- retainer
- star wheel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D41/00—Freewheels or freewheel clutches
- F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
- F16D41/064—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls
- F16D41/066—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls all members having the same size and only one of the two surfaces being cylindrical
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
The invention relates to a roller type overrunning clutch. The roller type overrunning clutch comprises an inner ring, an outer ring, a roller and a retainer; one of the inner ring and the outer ring is a star wheel provided with a working surface; the retainer can rotate around the axis of the roller type overrunning clutch; the roller is embedded in a holding hole on the holder and can move along the circumferential direction of the holder under the pushing of the hole wall of the holding hole; a force application seat is fixed on the star wheel, one of the force application seat and the retainer is fixedly provided with an ear part, and the other is provided with an avoidance port; the lug part radially extends into the avoidance port along the roller type overrunning clutch, and the avoidance port is provided with a moving space for the lug part to move in the circumferential direction; the magnetic adsorption structure or the magnetic repulsion structure is arranged between the ear part and the avoiding opening, the magnetic adsorption structure or the magnetic repulsion structure is used for applying wedging acting force to the retainer, the wedging acting force is used for driving the roller to move towards the wedging direction, and the reliability of the roller type overrunning clutch is improved.
Description
Technical Field
The invention relates to a roller type overrunning clutch.
Background
The overrunning clutch, also called a one-way clutch, is a device which is automatically combined and separated by utilizing the change of the relative rotating speed of a main driving part and a driven part or the change of the rotating direction and can only transmit power from one steering direction.
At present, a plurality of springs or spring and knock pin structures (such as the roller overrunning clutch disclosed in the utility model with the publication number of CN 203756794U) are commonly used for the roller overrunning clutch to push the rollers into the wedging area, and the following problems exist in the use process of the roller overrunning clutch: (1) the springs cannot be completely the same in manufacturing length and thread pitch, so that the spring force borne by the roller is not uniform, and the wedging and the disengagement of the roller are inconsistent, so that part of the rollers are subjected to stress failure too early; (2) the number of spring parts is large, and the reliability is low; (3) the roller extrudes the spring at the moment of overrunning of the clutch, so that the spring is easy to deform seriously and lose elasticity, and the clutch fails; (4) fatigue fracture easily appears in the spring, (5) the knock pin warp or the foreign matter gets into the scheduling problem leads to the clutch card to die, and then arouses the clutch inefficacy.
Disclosure of Invention
The invention aims to provide a roller type overrunning clutch to solve the problem that the roller type overrunning clutch in the prior art is poor in reliability.
The roller type overrunning clutch adopts the following technical scheme:
the roller type overrunning clutch comprises an inner ring, an outer ring, a roller and a retainer; one of the inner ring and the outer ring is a star wheel provided with a working surface;
the retainer and the star wheel are coaxially arranged, and the retainer can rotate around the axis of the roller type overrunning clutch; the roller is embedded in a holding hole on the holder and can move along the circumferential direction of the holder under the pushing of the hole wall of the holding hole;
a force application seat is fixed on the star wheel, one of the force application seat and the retainer is fixedly provided with an ear part, and the other is provided with an avoidance port;
the lug part radially extends into the avoidance port along the roller type overrunning clutch, and the avoidance port is provided with a moving space for the lug part to move in the circumferential direction;
and a magnetic adsorption structure or a magnetic repulsion structure is arranged between the ear part and the avoiding opening, the magnetic adsorption structure or the magnetic repulsion structure is used for applying wedging acting force to the retainer, and the wedging acting force is used for driving the roller to move towards the wedging direction.
The invention has the beneficial effects that: the magnetic adsorption structure or the magnetic repulsion structure can be arranged between the lug part and the avoiding opening, the magnetic adsorption structure or the magnetic repulsion structure can replace a spring in the roller type overrunning clutch in the prior art to apply wedging acting force on the retainer to drive the roller to move towards the wedging direction, the roller type overrunning clutch is ensured to enter the wedging state at any time, the problem of low reliability of the roller type overrunning clutch caused by the defects of spring deformation, breakage and the like in the prior art is solved, and the reliability of the roller type overrunning clutch is improved.
As a preferable technical solution, the retainer includes a sleeve-shaped main body, the retaining hole is provided on the sleeve-shaped main body, the ear is provided at one axial end of the sleeve-shaped main body, and the end surface of the corresponding end of the star wheel corresponds to the ear in the axial direction;
the force application seat is divided into a stop part and a fixing part along the circumferential direction;
the stop parts are located on the outer sides of the lugs in the axial direction of the star wheel, and the fixing parts are arranged corresponding to the intervals between the adjacent lugs and are fixed on the end face of the star wheel.
Has the advantages that: the structure of the retainer and the force application seat conveniently realizes the axial positioning of the retainer, avoids the arrangement of other structural parts specially used for axially positioning the retainer, and is favorable for simplifying the integral structure of the overrunning clutch.
As a preferable technical solution, the force application seat is a ring body, and includes a plurality of stopper portions and fixing portions, and the stopper portions and the fixing portions are alternately arranged along a circumferential direction.
Has the advantages that: the force application seat is a ring body, and the force application seat and the star wheel are convenient to assemble.
Preferably, the force application seat is fixed on the end face of the star wheel through a screw.
Has the advantages that: the maintenance or the replacement of the force application seat or the retainer is convenient.
As a preferable technical scheme, the force application seats are arc-shaped, the force application seats are uniformly arranged at intervals along the circumferential direction of the roller-type overrunning clutch, ear installation holes are formed between the blocking part of each force application seat and the adjacent force application seat, the ear installation holes allow the ears of the retainer to enter along the axial direction of the roller-type overrunning clutch and further rotate to the inner side of the blocking part, and the fixing part of the adjacent force application seat and the blocking part between the two fixing parts form the avoidance opening.
Has the advantages that: the force application seat is arc-shaped, and the single force application seat is simple in structure and convenient to design and process.
Preferably, the force application seat is integrally fixed on the end face of the star wheel.
Has the advantages that: compared with the split arrangement of the force application seat and the star wheel, the number of parts of the roller type overrunning clutch is reduced, the reliability of the overrunning clutch is improved, the assembly difficulty of the roller type overrunning clutch is reduced, and the improvement of the production efficiency is facilitated.
As a preferred technical scheme, a boss is arranged between two adjacent working surfaces of the star wheel, and the retainer realizes radial positioning through the boss.
Has the advantages that: the retainer can be positioned radially better through the lug boss, and the running reliability of the roller type overrunning clutch is improved.
As preferred technical scheme, be equipped with the permanent magnet on the lateral wall of dodging the mouth with one of them of ear, dodge on the lateral wall of mouth with another of ear is made by the material that can be adsorbed by the permanent magnet, perhaps is equipped with the adsorption piece that can be made by the material that the permanent magnet adsorbs on it.
Has the advantages that: therefore, only one of the side wall of the avoiding opening and the ear part is provided with the permanent magnet, and the other one is not provided with the permanent magnet, so that the roller type overrunning clutch is convenient to assemble.
As preferred technical scheme, on the lateral wall of dodging the mouth with be equipped with the magnet accommodation hole on one of them of ear, permanent magnet and magnet accommodation hole transitional fit, the magnet accommodation hole forms binding off structure through the punching press and deviates from in order to prevent the permanent magnet.
Has the advantages that: the permanent magnet is convenient to install and fix.
As a preferred technical solution, the star wheel is an outer ring.
Has the advantages that: compared with the inner ring, the outer ring is larger in size, and the working surface can be conveniently machined.
Drawings
FIG. 1 is a schematic structural view of a roller overrunning clutch 1 according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of FIG. 1;
FIG. 3 is a schematic structural view of the outer ring of FIG. 1;
FIG. 4 is a schematic view of the retainer of FIG. 1;
FIG. 5 is a schematic view of the force application seat shown in FIG. 1;
FIG. 6 is a schematic structural view of the retainer of FIG. 1 with permanent magnets mounted thereon;
FIG. 7 is a sectional view taken along line A-A of FIG. 6;
FIG. 8 is an enlarged view of a portion of FIG. 7 at B;
FIG. 9 is a schematic structural view of embodiment 2 of the roller overrunning clutch of the present invention;
fig. 10 is a schematic structural view of the outer ring in fig. 9.
In the figure: 1-outer loop; 2-a cage; 3-inner ring; 4-a roller; 5-permanent magnet; 6-force application seat; 7-a screw; 8-force application seat; 11-a working surface; 12-a threaded hole; 13-splines; 14-a boss; 15-pits; 21-a retention well; 22-ear; 23-retaining pore walls; 24-blind holes; 61-grooves; 62-a stopper wall; 63-connecting holes; 64-a fixed portion; 65-a stop portion; 81-ear mounting hole.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
In the embodiment 1 of the roller-type overrunning clutch of the present invention, as shown in fig. 1 and 2, the roller-type overrunning clutch includes an inner ring 3, an outer ring 1, rollers 4, and a retainer 2, wherein the outer ring 1 is a star wheel, and a working surface 11 is provided in the outer ring 1. As shown in fig. 3, the working surface 11 is a logarithmic spiral surface in the prior art, and such a working surface 11 is not affected by manufacturing errors and wear, can keep the wedge angle constant, and has stable working performance.
As shown in fig. 4, the retainer 2 includes a sleeve-shaped main body, ten retaining holes 21 are uniformly distributed in the circumferential direction of the sleeve-shaped main body, ten corresponding rollers 4 are also provided, and the rollers 4 are embedded in the retaining holes 21 in a one-to-one correspondence manner and can move along with the retainer 2 in the circumferential direction under the pushing of the walls 23 of the retaining holes. Six ears 22 are evenly distributed at intervals along the circumferential direction at one axial end of the sleeve-shaped main body, and the end face corresponding to the outer ring 1 corresponds to the ears 22 along the axial direction. As shown in fig. 5, the force application base 6 is a ring body, six grooves 61 are uniformly distributed in the circumferential direction of the ring body, a portion between two adjacent grooves 61 forms a fixed portion 64 of the force application base 6, and a portion corresponding to a bottom wall of the groove 61 forms a stop portion 65 of the force application base 6, so that six stop portions 65 and six fixed portions 64 are formed on the force application base 6, and the stop portions 65 and the fixed portions 64 are alternately arranged in the circumferential direction. As shown in fig. 5, the fixing portion 64 is provided with a connecting hole 63, as shown in fig. 3, a screw hole 12 is provided on the end surface of the outer ring 1, and the urging base 6 is fixed to the outer ring 1 by a screw 7 passing through the connecting hole 63 and threadedly engaged with the screw hole 12. When the force application seat 6 is fixed on the outer ring 1, the bottom wall of the groove 61 is arranged opposite to the end surface of the outer ring 1, and the side wall and the bottom wall of the groove 61 enclose an avoidance opening of the force application seat 6.
When the retainer 2 and the force application base 6 are mounted, the lug portions 22 of the retainer 2 are radially inserted into the recesses 61 along the roller overrunning clutch, so that the stopper portions 65 are axially located outside the lug portions 22 along the outer ring 1 to axially position the lug portions 22 through the groove bottom walls of the recesses 61 and the corresponding end faces of the outer ring 1. The distance between the groove side walls of the groove 61 is larger than the circumferential width of the lug 22, so that the lug 22 can move in the circumferential direction of the groove 61, i.e., the cage 2 can rotate around the axis of the outer ring 1.
In addition, as shown in fig. 2 and 3, a boss 14 is provided between two adjacent working surfaces 11 of the outer ring 1, and the cage 2 is radially positioned by the boss 14.
As shown in fig. 4, blind holes 24 are formed in the side edge of one circumferential side of the lug portion 22, the blind holes 24 form magnet mounting holes, permanent magnets 5 are mounted in the blind holes 24, as shown in fig. 6 to 8, each permanent magnet 5 is in transition fit with the corresponding blind hole 24, and after the permanent magnet 5 is mounted in the blind hole 24, a plurality of pits 15 are punched at the edge of the hole opening of the blind hole 24 by a punch, so that the blind hole 24 forms a closing structure, and the permanent magnet 5 is prevented from falling out of the blind hole 24. The material of the retainer 2 is brass, the material of the force application seat 6 is 40Cr, when the clutch is used specifically, the groove side wall of the groove 6, which is arranged close to the corresponding permanent magnet 5, serves as the stop wall 62, and a magnetic attraction force is generated between the permanent magnet 5 and the stop wall 62, and drives the retainer 2 to rotate around the axis, so that the holding hole wall 23 on one axial side of the retainer 2 can be always kept in contact with the roller 4, the roller 4 moves towards the wedging direction, a pretightening force is provided for the clutch, and the combination function of the roller 4 type clutch is ensured. The permanent magnet 5 and the stopper wall 62 constitute a magnetic attraction structure provided between the ear portion 22 and the escape opening. By adjusting the magnetic strength of the permanent magnet 5, the degree of wear during overrunning can be reduced while the clutch engagement function is ensured.
In other embodiments, the avoiding opening may also be disposed on the holder, and the ear portion is disposed on the force application seat, specifically, the holder only includes the sleeve-shaped main body, the avoiding opening is disposed at one end of the sleeve-shaped main body corresponding to the force application seat, the force application seat is a ring body, and the ear portion protrudes toward the radial inner side of the ring body, so that the ear portion radially extends into the avoiding opening along the roller-type overrunning clutch. At this time, in order to axially position the retainer, an annular stopper may be fixed to an axial end of the outer ring away from the force application seat, and the retainer is axially positioned by the ear portion and the annular stopper.
In other embodiments, the force application seat can also be fixed on the outer ring by welding or bonding.
In other embodiments, the outer ring may not be provided with a boss, only the working surface is provided, and the radial positioning of the retainer is realized through the rollers.
In other embodiments, a permanent magnet can be arranged on one groove side wall of the groove, and the lug part is made of a material which can be adsorbed by the permanent magnet, or an adsorbing piece made of a material which can be adsorbed by the permanent magnet is fixed on the lug part; of course, the force application seat in the above embodiment 1 can also be made of brass or other material that can not be attracted by the permanent magnet, and only the attraction piece made of material that can be attracted by the permanent magnet is fixed on the corresponding groove sidewall of the groove of the force application seat.
In other embodiments, the permanent magnet may also be provided with a mounting hole, and a threaded hole corresponding to the mounting hole is provided on the ear, and the permanent magnet is fixed on the ear by a screw passing through the mounting hole and screwed on the ear.
In other embodiments, the permanent magnets are arranged on the groove side wall and the lug part of the groove, and the same poles of the two permanent magnets are arranged oppositely, so that repulsive force is generated between the avoiding opening and the lug part, the repulsive force is used as wedging acting force, and the permanent magnets arranged on the avoiding opening and the lug part form a magnetic repulsive structure between the lug part and the avoiding opening.
In other embodiments, the inner ring may also be a star wheel provided with a working surface, in which case the force application seat is fixed to the inner ring.
In the embodiment 2 of the roller-type overrunning clutch of the present invention, the roller-type overrunning clutch in the embodiment is different from the above-mentioned embodiment of the roller-type overrunning clutch only in that: as shown in fig. 9 and 10, the force application seats 8 are arc-shaped, six force application seats 8 are uniformly distributed along the axial direction of the roller-type overrunning clutch at intervals, and each force application seat 8 is integrally fixed on the end surface of the outer ring 1. The force application seat 8 comprises two side edges which are vertical to each other, wherein one side edge forms a stop part of the force application seat 8, and the side edge is arranged in parallel with the end surface of the outer ring 1 and forms a gap with the corresponding end surface of the outer ring 1; the other side, which forms the fixed part of the force application seat 8, is formed by the end surface of the corresponding end of the outer ring 1 extending in the axial direction. Thus, the spacing between the stop portion of one of the force application seats 8 and the adjacent force application seat 8 forms an ear mounting hole 81, when the retainer 2 is mounted, the ear 22 of the retainer 2 enters along the axial direction of the roller-type overrunning clutch and rotates to the inner side of the stop portion, and meanwhile, the fixing portion of the adjacent force application seat 8 and the stop portion between the two fixing portions form an avoidance opening. The force application seat 8 is integrally fixed on the end face of the star wheel, so that the number of parts is reduced, screw connection is omitted, the reliability of the roller type overrunning clutch is improved, the assembly difficulty of the roller type overrunning clutch is reduced, and the production efficiency is improved.
In other embodiments, each arc-shaped force application seat can also be connected to the end surface of the outer ring through a screw, that is, a mounting hole is arranged on the force application seat, a threaded hole is arranged on the end surface of the corresponding end of the outer ring, and the force application seat is fixed on the end surface of the outer ring through a screw which penetrates through the mounting hole and is screwed in the threaded hole.
Claims (9)
1. The roller type overrunning clutch comprises an inner ring, an outer ring, a roller and a retainer; one of the inner ring and the outer ring is a star wheel provided with a working surface;
it is characterized in that the outer ring and the inner ring are of an integrally formed structure,
the retainer and the star wheel are coaxially arranged, and the retainer can rotate around the axis of the roller type overrunning clutch; the roller is embedded in a holding hole on the holder and can move along the circumferential direction of the holder under the pushing of the hole wall of the holding hole;
a force application seat is fixed on the star wheel, one of the force application seat and the retainer is fixedly provided with an ear part, and the other is provided with an avoidance port;
the lug part radially extends into the avoidance port along the roller type overrunning clutch, and the avoidance port is provided with a moving space for the lug part to move in the circumferential direction;
a magnetic adsorption structure or a magnetic repulsion structure is arranged between the lug part and the avoiding opening, the magnetic adsorption structure or the magnetic repulsion structure is used for applying wedging acting force to the retainer, and the wedging acting force is used for driving the roller to move towards the wedging direction; the retainer comprises a sleeve-shaped main body, the axial length of the sleeve-shaped main body is greater than that of the roller, the retaining hole is formed in the peripheral surface of the sleeve-shaped main body, the retaining hole is a long hole with the length extending along the axial direction of the sleeve-shaped main body, the lug part is arranged at one axial end of the sleeve-shaped main body and extends to the radial outer side of the sleeve-shaped main body, and the end face of the corresponding end of the star wheel corresponds to the lug part along the axial direction;
the force application seat is divided into a stop part and a fixing part along the circumferential direction;
the stop parts are positioned on the outer sides of the lugs along the axial direction of the star wheel, and the fixing parts are arranged corresponding to the intervals between the adjacent lugs and are fixed on the end surface of the star wheel; the fixing part is provided with a connecting hole, the end face of the star wheel is provided with a threaded hole, and the force application seat is fixed on the star wheel through a screw which penetrates through the connecting hole and is in threaded connection with the threaded hole.
2. The roller overrunning clutch according to claim 1, wherein the force application seat is a ring body and includes a plurality of retaining portions and fixing portions, and the retaining portions and the fixing portions are alternately arranged in a circumferential direction.
3. The roller overrunning clutch of claim 2 in which said force applying seat is secured to said end face of said spider by screws.
4. The roller overrunning clutch according to claim 1, wherein the force application seats are arc-shaped, the force application seats are uniformly arranged at intervals along the circumferential direction of the roller overrunning clutch, an ear mounting hole is formed between the blocking portion of each force application seat and the adjacent force application seat, the ear mounting hole allows the ear of the retainer to axially enter along the roller overrunning clutch and further rotate to the inner side of the blocking portion, and the fixed portion of the adjacent force application seat and the blocking portion between the two fixed portions form the avoidance opening.
5. The roller overrunning clutch of claim 4 in which said apply seat is integrally fixed to said spider end face.
6. A roller overrunning clutch according to any of claims 1 to 5 in which a boss is provided between adjacent faces of the star wheel and the retainer is radially positioned by the boss.
7. The roller overrunning clutch according to any one of claims 1 to 5, wherein a permanent magnet is disposed on one of the sidewall of the avoiding opening and the ear, and the other of the sidewall of the avoiding opening and the ear is made of a material that can be adsorbed by the permanent magnet, or an adsorbing member made of a material that can be adsorbed by the permanent magnet is disposed thereon.
8. The roller overrunning clutch according to claim 7, wherein a magnet receiving hole is formed in one of the side wall of the avoiding opening and the ear portion, the permanent magnet is in transition fit with the magnet receiving hole, and the magnet receiving hole is punched to form a closing structure to prevent the permanent magnet from being removed.
9. A roller freewheel clutch according to one of claims 1-5, characterized in that the star wheel is an outer ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910754492.6A CN110388391B (en) | 2019-08-15 | 2019-08-15 | Roller type overrunning clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910754492.6A CN110388391B (en) | 2019-08-15 | 2019-08-15 | Roller type overrunning clutch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110388391A CN110388391A (en) | 2019-10-29 |
| CN110388391B true CN110388391B (en) | 2021-01-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910754492.6A Active CN110388391B (en) | 2019-08-15 | 2019-08-15 | Roller type overrunning clutch |
Country Status (1)
| Country | Link |
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| CN (1) | CN110388391B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111911557A (en) * | 2020-08-12 | 2020-11-10 | 宁波森瑞机电技术有限公司 | Clutch, motor device, curtain control device and curtain |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2514166Y (en) * | 2001-12-17 | 2002-10-02 | 严建明 | Miniature magnetic clutch |
| CN1438430A (en) * | 2003-02-18 | 2003-08-27 | 陈松林 | Single-way bearing of magnetic mechanism |
| CN2806872Y (en) * | 2005-06-28 | 2006-08-16 | 范久强 | Overrunning clutch |
| CN101639103A (en) * | 2008-07-29 | 2010-02-03 | 厦门恒瑞达机械有限公司 | External star wheel type overrunning clutch |
| CN102086910A (en) * | 2011-01-14 | 2011-06-08 | 左臣伟 | Bidirectional output unidirectional clutch mechanism |
| CN104428549A (en) * | 2012-02-23 | 2015-03-18 | 艾里逊变速箱公司 | Electromagnetically-actuated direction-sensing roller clutch |
| DE102017128783B3 (en) * | 2017-12-04 | 2019-04-18 | Tai-World Mfg. Co., Ltd. | Disposable rotary brake with a low frictional resistance |
-
2019
- 2019-08-15 CN CN201910754492.6A patent/CN110388391B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2514166Y (en) * | 2001-12-17 | 2002-10-02 | 严建明 | Miniature magnetic clutch |
| CN1438430A (en) * | 2003-02-18 | 2003-08-27 | 陈松林 | Single-way bearing of magnetic mechanism |
| CN2806872Y (en) * | 2005-06-28 | 2006-08-16 | 范久强 | Overrunning clutch |
| CN101639103A (en) * | 2008-07-29 | 2010-02-03 | 厦门恒瑞达机械有限公司 | External star wheel type overrunning clutch |
| CN102086910A (en) * | 2011-01-14 | 2011-06-08 | 左臣伟 | Bidirectional output unidirectional clutch mechanism |
| CN104428549A (en) * | 2012-02-23 | 2015-03-18 | 艾里逊变速箱公司 | Electromagnetically-actuated direction-sensing roller clutch |
| DE102017128783B3 (en) * | 2017-12-04 | 2019-04-18 | Tai-World Mfg. Co., Ltd. | Disposable rotary brake with a low frictional resistance |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110388391A (en) | 2019-10-29 |
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