CN111853095B - Volute spring type overrunning clutch - Google Patents
Volute spring type overrunning clutch Download PDFInfo
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- CN111853095B CN111853095B CN202010795183.6A CN202010795183A CN111853095B CN 111853095 B CN111853095 B CN 111853095B CN 202010795183 A CN202010795183 A CN 202010795183A CN 111853095 B CN111853095 B CN 111853095B
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- side cover
- volute spring
- rollers
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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
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- General Engineering & Computer Science (AREA)
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- Mechanical Operated Clutches (AREA)
Abstract
The invention provides a scroll spring type overrunning clutch which comprises a body and rollers, wherein the inner peripheral wall of the body is provided with a roller profile groove, the rollers are placed in the roller profile groove, a scroll type scroll spring is arranged between the rollers, and the scroll spring is arranged on a ball frame fixed with the body; the bead frame comprises a first side cover and a second side cover which are annular sheet-shaped, wherein the first side cover and the second side cover are respectively provided with an outer claw and an inner claw which are opposite to each other, the outer claw is close to the outer circumferential edge of the side cover, the inner claw is close to the inner circumferential edge of the side cover, the outer claw and the inner claw which are on the same side of the roller are positioned on the same radial line of the body, the outer claw is in interference fit with a clamping groove in the inner circumferential wall of the body, and the inner claw is used for installing and limiting the volute spring. The invention does not need to arrange a housing and a baffle, saves the installation space, has high strength of the clutch, ensures the effective working stroke of the roller while arranging more rollers, and has strong bearing capacity and good processing manufacturability.
Description
Technical Field
The invention relates to a clutch, in particular to a volute spring type overrunning clutch.
Background
The overrunning clutch is an important part for realizing power transmission and separation between a driving shaft and a driven shaft. It is a device with self-clutch function by using speed change of driving and driven parts or change of rotation direction. Current freewheel clutch is including the housing and the body that are connected, the terminal surface of housing is located body one side, the body is the annular, be provided with the recess that is used for placing roller and pressure spring on the internal perisporium of body, the recess has a plurality ofly and evenly distributed, because current notched diapire, antetheca and back wall are processed on the body and form, its shape is comparatively complicated, make the broach structure that the recess was used on the broach body also comparatively complicated, the broach machining allowance is big, machining efficiency is low and broach is with high costs, and make the body consume the material more because of the reason of recess antetheca and back wall, these all make current freewheel clutch's manufacturing cost higher. Moreover, because the inner peripheral space of the body is limited, the axis of the pressure spring is long, and the axis of the pressure spring is perpendicular to the rollers, if the bearing capacity of the clutch is improved by increasing the number of the rollers, the number of the rollers is limited.
In order to solve the problem, chinese patent document CN108561455A discloses a torsion spring type overrunning clutch, which includes a body, a housing, rollers and a baffle, wherein the housing and the baffle are respectively installed at two sides of the body, the body is annular, a roller groove is provided on an inner peripheral wall of the body, the rollers are placed in the roller groove, a torsion spring parallel to the rollers is provided between two adjacent rollers, the torsion spring is supported on an installation column provided on the housing, a front end of the installation column is inserted into a support hole provided on the baffle, and a torsion arm of the torsion spring is abutted against a rear end of a previous roller. The torsional spring is supported on the housing, the rear wall for supporting the traditional torsional spring is not required to be processed on the body, the process of processing a deep groove on the body is omitted, only a shallow roller groove needs to be processed, the cutting allowance of a processing cutter is small, the processing efficiency is high, the service life of the cutter is long, and the production cost of a product can be reduced; and under the condition that the diameter of the inner circumference of the body is limited, the number of the rollers can be increased, so that the bearing capacity of the clutch can be improved as much as possible under the condition that the external dimension of the body is not increased. However, in this clutch, since the torsion spring is supported by a thin and long worm spring mounting post bent integrally with the housing, when the load of the clutch is further increased, the worm spring is deflected due to lack of stability of the mounting post, so that the roller cannot move according to a predetermined track, the roller cannot completely reach a designed stroke, and the working stroke of the roller is reduced, thereby decreasing the bearing capacity of the clutch. In addition, the two sides of the body are respectively provided with a cover shell and a baffle plate, the diameter of the cover shell is basically the same as that of the periphery of the body, the cover shell comprises an end plate and a circumferential part, the circumferential part of the cover shell is embedded on the periphery of the body in a covering mode, the cover shell and the baffle plate basically shield the two sides of the body, the heat dissipation of the body and the lubrication of the roller are not facilitated, the overall dimension of the clutch is increased, and in a limited arrangement space, the size of the clutch body can only be reduced, and the strength and the service life of the clutch body are influenced. Later, an overrunning clutch using a roller bracket type clutch which has a small diameter size and does not shield the body without using a housing and a baffle plate has also appeared, but the fixing mode of the roller bracket and the body is complicated, the processing manufacturability is poor, the manufacturing cost is high and the production efficiency is low.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the spiral spring type overrunning clutch, which does not need to be provided with a housing and a baffle, has high strength, good heat dissipation and lubricity of a clutch body, ensures the effective working stroke of a roller while more rollers are arranged, and has high bearing capacity and good processing manufacturability.
In order to achieve the above purpose, the technical scheme provided by the invention is as follows: a scroll spring type overrunning clutch comprises a body and rollers, wherein the body is annular, a roller profile groove is formed in the inner peripheral wall of the body, the rollers are placed in the roller profile groove, a scroll type scroll spring is arranged between the rollers, the scroll spring is installed on a ball frame fixed with the body, and the tail end of the scroll spring abuts against the roller on the front side; the ball frame comprises a first side cover and a second side cover which are in a ring shape, wherein the first side cover and the second side cover are respectively provided with an outer claw and an inner claw which are opposite, the outer claw is close to the outer circumferential edge of the side cover, the inner claw is close to the inner circumferential edge of the side cover, the outer claw and the inner claw which are on the same side of the roller are positioned on the same radial line of the body, and a movable cavity of the roller is formed among the roller profile groove of the body, the ring pieces of the two side covers, the outer claw and the inner claw which are opposite; the outer claw is in interference fit with a clamping groove in the inner peripheral wall of the body, and the inner claw is used for installing and limiting the volute spring.
The scroll spring is used as a working spring, is of a scroll type and is arranged on the bead frame fixed with the body, and is arranged on the inner claw of the bead frame in a penetrating manner, so that the back wall of the supporting spring does not need to be processed on the body, the processing of the body is simplified, the deep groove is prevented from being processed on the body, and the space is saved for arranging more rollers on the inner peripheral wall of the body; and the axis of the volute spring is parallel to the rollers, so that the size is small, the occupied space is small, and the two factors can increase the number of the rollers to improve the bearing capacity of the clutch. For a torsion spring and a volute spring which apply the same spring force to a roller, the installation part of the torsion spring is longer, because the size of the installation part of the torsion spring is the sum of the width of a torsion arm and the lengths of two power storage seat rings, the support claw for installing the torsion spring is longer, and the problem that the support claw generates vibration due to overhang so that the torsion spring and the roller deflect needs to be considered; the tail part of the volute spring is overlapped with the installation part in the width direction, the size of the installation part of the volute spring is smaller than that of the torsion spring, the length of an inner claw for installing the volute spring can be shortened, the shorter inner claw has higher strength and rigidity, is not easy to deform and strong in stability, and the volute spring cannot vibrate even if the load of the clutch is improved, so that the roller is guaranteed to move according to a preset track, the designed working stroke is completely reached, and compared with the torsion spring, the coiled volute spring is balanced in stress and not easy to break, and the bearing capacity of the clutch can be better guaranteed.
The bead frame comprises first side cap and second side cap, and first side cap and second side cap need not rivet or buckle the gomphosis through outer claw interference fit in the draw-in groove of the internal perisporium of body, and processing technology is simple, has reduced the manufacturing degree of difficulty and cost, has promoted production efficiency. The external diameter of first side cap and second side cap as long as be a bit larger than the internal perisporium diameter of body, can guarantee the intensity of both sides cap and the mounted position of jack catch and body can, the external diameter of first side cap and second side cap reduces, can not shield the both sides face large area ground of body, be favorable to the lubrication of body heat dissipation and roller, and in limited installation space, can increase the thickness of clutch body, the intensity and the bearing capacity of body have been promoted, the service life of clutch has been improved, the wholeness of product appearance has still been promoted.
Further, as an optimized simple-structured arrangement, the clamping groove is arranged between the two roller profile grooves, and a pair of external claws arranged oppositely on the first side cover and the second side cover are in interference fit in the same clamping groove; the inner claw of one of the two side covers is used for penetrating the scroll part of the scroll spring, and the inner claw of the other side cover limits the end face of the scroll part of the scroll spring. The bead frame adopts two side covers to fix through same draw-in groove interference fit's on outer claw and the body mode respectively, has reduced the length of outer claw, and outer claw intensity is high non-deformable, has reduced the degree of difficulty with draw-in groove interference fit, has promoted processing manufacturability, has reduced the production degree of difficulty, promotes production efficiency.
Furthermore, in order to realize a good limiting function, the inner claw of the first side cover is provided with a winding center part of the spiral spring, and the inner claw of the second side cover is wider than the inner claw of the first side cover and is positioned outside the end surface of the winding center part of the spiral spring.
Furthermore, the roller profile groove of the body is evenly distributed with ridges protruding towards the inner hole direction, the middle of each ridge is provided with the clamping groove, the position, close to the side face of the body, of one end of each ridge is provided with a limiting protruding platform, and the first side cover is abutted to the limiting protruding platforms. The limiting boss serves as an axial positioning step of the first side cover, on the basis of interference fit of the outer claws and the clamping grooves, the limiting boss is added for limiting, and the firmness and stability of fixing the bead frame and the body are improved.
Furthermore, the ridge is also provided with a yielding groove, the central line of the yielding groove is perpendicular to the central line of the clamping groove, and the width of the yielding groove is larger than that of the tail part of the volute spring and is positioned on the movable track of the tail part of the volute spring. The receding groove is receded at the tail part of the volute spring, so that the clutch body cannot interfere with the volute spring under the condition of not increasing the size, the structure is more compact, and the reduction of the outer diameter size of the clutch body is facilitated.
Furthermore, in order to reduce the width of the bead frame and improve the thickness and the bearing capacity of the body, an annular step is arranged on the other side face of the body, which is far away from the limiting boss, the annular step is close to the inner circumference of the body, and the outer circumferential edge of the second side cover falls into the annular step. The bead frame does not protrude from the width direction of the body, the thickness space saved by the original encloser and the baffle can be designed on the body, the thickness of the body is increased, the strength and the bearing capacity of the body are enhanced, the bead frame is not easy to break, and the service life is long.
Further, in order to simplify the structure and improve the compactness of the processing manufacturability and the product structure, the outer claws and the inner claws are integrally bent and formed by the side cover body, the outer claws and the inner claws of the same side cover are bent towards the same side of the side cover, the outer claws and the inner claws are uniformly distributed and are arranged in pairs, and each pair of the outer claws and the inner claws are positioned on the same radial line of the body.
Further, the width direction and the outer diameter direction of the outer claw are in interference fit with the clamping groove. The interference fit of the outer claws in two directions ensures that the bead frame and the body are more firmly fixed.
Furthermore, in order to prevent the spiral spring from moving, the inner claw for installing the spiral spring is provided with a limiting step, and the width of the root of the inner claw is larger than that of the front end.
Further, the number of the rollers is 12.
Compared with the prior art, the invention has the beneficial effects that:
1. the roller bearing has the advantages that more rollers can be accommodated under the condition that the diameter size of the inner hole of the body is limited, the inner claw of the volute spring is short due to the fact that the size of the installation position of the volute spring is small, the strength and the rigidity of the inner claw are high, the volute spring is not prone to deformation, stability is high, the effective working stroke of the rollers can be guaranteed, bearing capacity of a clutch is high, and the service life of the clutch is long.
2. The bead frame adopts two side covers to fix through same draw-in groove interference fit's on outer claw and the body mode respectively, has reduced the length of outer claw, and outer claw intensity is high non-deformable, has reduced the degree of difficulty with draw-in groove interference fit, has promoted processing manufacturability, has reduced the production degree of difficulty, promotes production efficiency.
3. The traditional overrunning clutch has the advantages that the cover shell and the baffle which are made of more materials are omitted, the materials can be reduced, the production cost is reduced, the thickness space saved by the original cover shell and the baffle can be designed on the body, the thickness of the body is increased, the strength and the bearing capacity of the body are improved, the overrunning clutch is not easy to break, and the service life is long. And the body is not wrapped, and the clutch heat dissipation and lubrication effect is good.
4. Only a shallow roller profile groove needs to be processed on the inner hole of the body, and a wall for supporting the pressure spring does not need to be processed, so that the material consumption of the body is reduced, raw materials are saved, the cost of the raw materials is reduced, the space for arranging more rollers is saved, more rollers can be mounted, and the bearing capacity of the clutch is improved.
Drawings
Fig. 1 is a schematic structural view of an embodiment of the present invention (in the figure, 2 rollers and a volute spring are respectively shown and express 3 position states when they are operated, and a second side cover is not installed).
Fig. 2 is a schematic view of the installation relationship of the body, the first side cover and the second side cover in the embodiment of the invention.
Fig. 3 is a partially enlarged view of fig. 2.
Fig. 4 is a schematic structural view of the volute spring in fig. 1.
Fig. 5 is a top view of fig. 4.
Fig. 6 is a partially enlarged structural view of the body of fig. 1.
Fig. 7 is a schematic structural view of the bead frame (first side cover, second side cover) in fig. 2.
Fig. 8 is a schematic structural view of the first side cover in fig. 7.
Fig. 9 is a schematic structural view of the second side cover in fig. 7.
The present invention will be described in further detail with reference to the accompanying drawings.
Detailed Description
As shown in fig. 1 to 5, a spiral spring type overrunning clutch comprises a body 1 and rollers 2, wherein the body 1 is annular, a roller-shaped surface groove 11 is formed in the inner peripheral wall of the body 1, the rollers 2 are placed in the roller-shaped surface groove 11, and the number of the rollers 2 in the embodiment is 12, so that the clutch has excellent bearing capacity and better dynamic balance. And scroll type scroll springs 3 are arranged between the rollers 2, the scroll springs 3 are arranged on a ball frame 4 fixed with the body 1, the tail end of each scroll spring 3 abuts against the roller 2 at the front side of the scroll spring, and the tail part of the scroll spring 3 exerts spring force on the roller 2 so that each roller 2 abuts against the installation part of the scroll spring 3 at the front side of the roller 2 in a non-working state. As shown in fig. 1, 2, 6 to 9, the ball frame 4 includes a first side cover 41 and a second side cover 42 in a ring shape, the first side cover 41 and the second side cover 42 are respectively provided with an outer claw 43 and an inner claw 44 which are opposite, the outer claw 43 is close to the outer circumferential edge of the side cover, the inner claw 44 is close to the inner circumferential edge of the side cover, the outer claw 43 and the inner claw 44 on the same side of the roller 2 are located on the same radial line of the body 1, and a movable cavity of the roller 2 is formed among the roller profile groove 11 of the body 1, the ring pieces of the two side covers, and the outer claw 43 and the inner claw 44 which are opposite. The outer claws 43 are in interference fit with the clamping grooves 13 on the inner peripheral wall of the body 1, and the inner claws 44 mount and limit the spiral spring 3. The spiral spring 3 is used as a working spring, the spiral spring 3 is of a winding sheet type and is arranged on the bead frame 4 fixed with the body 1, and the spiral spring 3 is arranged on the inner claw 44 of the bead frame 4 in a penetrating mode, so that the back wall of the supporting spring does not need to be processed on the body 1, the processing of the body 1 is simplified, deep grooves are avoided being processed on the body 1, and space is saved for arranging more rollers 2 for the inner peripheral wall of the body 1.
The outer claws 43 and the inner claws 44 are integrally bent and formed by the side cover body, the outer claws 43 and the inner claws 44 of the same side cover are bent towards the same side of the side cover, the outer claws 43 and the inner claws 44 are uniformly distributed and arranged in pairs, and each pair of the outer claws 43 and the inner claws 44 are positioned on the same radial line of the body 1. A pair of outer claws 43 arranged oppositely on the first side cover 41 and the second side cover 42 are in interference fit in the same clamping groove 13; the inner claw 44 of one of the two side covers is used for penetrating the winding part of the scroll spring 3, and the inner claw 44 of the other side cover limits the end face of the winding part of the scroll spring 3. As shown in fig. 1, 3 and 7, the inner jaw 44 of the first side cover 41 is mounted with the winding core 31 of the spiral spring 3, the inner jaw 44 of the second side cover 42 is wider than the inner jaw 44 of the first side cover 41 and is located outside the end face of the winding core 31 of the spiral spring 3, and the wider inner jaw 44 of the second side cover 42 is used for limiting the spiral spring 3 and preventing the spiral spring 3 from moving axially.
The outer diameters of the first side cover 41 and the second side cover 42 are only slightly larger than the diameter of the inner peripheral wall of the body 1, the strength of the two side covers and the installation positions of the clamping jaws and the body 1 can be ensured, the outer diameters of the first side cover 41 and the second side cover 42 are reduced, the two side faces of the body 1 do not need to be shielded in a large area, the heat dissipation of the body 1 and the lubrication of the roller 2 are facilitated, the service life of the clutch is prolonged, the integrity of the appearance of a product is improved, a housing and a baffle which are more in raw materials are removed, the materials can be reduced, and the production cost is reduced.
The width direction and the outer diameter direction of the outer claw 43 are in interference fit with the clamping groove 13, and the outer claw 43 is in interference fit in two directions, so that the bead frame 4 and the body 1 are fixed more firmly. In order to prevent the scroll spring 3 from moving, a limit step is arranged on an inner claw 44 for installing the scroll spring 3, and the width of the root part of the inner claw 44 is larger than that of the front end.
As shown in fig. 3 and 6, a limit boss 15 is provided at a position close to the side surface of the body 1 at one end of the ridge 12, and the first side cover 41 abuts against the limit boss 15. The limiting boss 15 serves as an axial positioning step of the first side cover 41, on the basis that the outer claws 43 are in interference fit with the clamping grooves 13, the limiting boss 15 is additionally arranged for limiting, and the firmness and the stability of fixing the bead frame 4 and the body 1 are improved. In order to reduce the width of the bead frame 4 and facilitate the connection of the main body 1 with other components, an annular step 16 is provided on the other side of the main body 1 away from the limiting boss 15, the annular step 16 is close to the inner circumference of the main body 1, and the outer circumference of the second side cover 42 falls into the annular step 16, so that the bead frame 4 does not protrude from the side of the main body 1. Therefore, the thickness space saved by the original housing and the baffle of the traditional clutch can be designed on the body 1, the thickness of the body 1 is increased, the strength and the bearing capacity of the body 1 are improved, the clutch is not easy to break, and the service life is long.
The invention adopts the volute spring 3, the size of the installation part of the volute spring 3 is shorter than that of a torsion spring, the length of the inner claw 44 for installing the volute spring 3 can be shortened, the shorter inner claw 44 has higher strength and rigidity, is not easy to deform and has strong stability, and even the load of the clutch is improved, the volute spring 3 can not vibrate, thereby ensuring that the roller 2 moves according to a preset track, completely reaching the designed working stroke and ensuring the bearing capacity of the clutch. The bead frame 4 adopts two side covers to fix through outer claw 43 and the same draw-in groove 13 interference fit's on the body 1 mode respectively, has reduced the length of outer claw 43, and outer claw 43 intensity is high non-deformable, has reduced the degree of difficulty with draw-in groove 13 interference fit, has promoted the processing technology nature, has reduced the production degree of difficulty, promotes production efficiency. First side cap 41 and second side cap 42 do not need to rivet or buckle the gomphosis in the draw-in groove 13 of the internal perisporium of body 1 through outer claw 43 interference fit, and processing technology is simple, has reduced the manufacturing degree of difficulty and cost, has promoted production efficiency.
Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (7)
1. A volute spring type overrunning clutch comprises a body and rollers, wherein the body is annular, a roller profile groove is formed in the inner peripheral wall of the body, the rollers are placed in the roller profile groove, a volute spring of a scroll type is arranged between the rollers, the volute spring is installed on a ball frame fixed with the body, the tail end of the volute spring abuts against the rollers on the front side, the ball frame comprises a first annular side cover and a second annular side cover, and the volute spring type overrunning clutch is characterized in that: the first side cover and the second side cover are respectively provided with outer claws and inner claws which are opposite to each other, the number of the outer claws and the number of the inner claws which are arranged on each side cover are the same as that of the rollers, the outer claws and the inner claws of the same side cover are positioned on the same radial line of the body, the outer claws are close to the outer circumferential edge of the side cover, the inner claws are close to the inner circumferential edge of the side cover, and a movable cavity of the rollers is formed among the roller profile groove of the body, the ring sheets of the two side covers and the outer claws and the inner claws which are opposite to each other; the outer claw is in interference fit with a clamping groove in the inner peripheral wall of the body, and the inner claw is used for installing and limiting the volute spring;
the clamping groove is arranged between the two roller profile grooves, and the outer claws of the two side covers are straight bars and oppositely arranged in pairs and extend into the same clamping groove on the inner peripheral wall for interference fit; the inner claws of the two side covers are long and short, the first side cover is provided with a long inner claw for penetrating the scroll part of the scroll spring, and the second side cover is provided with a short inner claw for limiting the end face of the scroll part of the scroll spring; ridges protruding towards the direction of the inner hole are uniformly distributed among the roller-shaped surface grooves of the body, the middle of each ridge is provided with the clamping groove, a position limiting lug boss is arranged at one end of each ridge, close to the side surface of the body, and the first side cover abuts against the position limiting lug boss; the convex ridge is also provided with a yielding groove, the central line of the yielding groove is perpendicular to the central line of the clamping groove, and the width of the yielding groove is larger than that of the tail part of the volute spring and is positioned on the movable track of the tail part of the volute spring.
2. The volute spring overrunning clutch of claim 1, wherein: the inner claw of the second side cover is wider than the inner claw of the first side cover and is positioned outside the end face of the winding core part of the spiral spring.
3. The volute spring overrunning clutch of claim 1, wherein: the other side surface of the body, which deviates from the limiting lug boss, is provided with an annular step, the annular step is close to the inner circumference of the body, and the outer circumference of the second side cover falls into the annular step.
4. The volute spring overrunning clutch of claim 1, wherein: outer claw and interior claw are buckled the shaping by side cap body an organic whole, and outer claw and interior claw of same side cap are buckled to same one side of side cap, and outer claw and interior claw evenly distributed are and arrange in pairs, and every outer claw and interior claw of every pair are located the same radial line of body.
5. The volute spring overrunning clutch of claim 1, wherein: the width direction and the outer diameter direction of the outer claw are in interference fit with the clamping groove.
6. The volute spring overrunning clutch of claim 1, wherein: the inner claw for installing the volute spring is provided with a limiting step, and the width of the root of the inner claw is larger than that of the front end.
7. The volute spring overrunning clutch of claim 1, wherein: the number of the rollers is 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010795183.6A CN111853095B (en) | 2020-08-10 | 2020-08-10 | Volute spring type overrunning clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010795183.6A CN111853095B (en) | 2020-08-10 | 2020-08-10 | Volute spring type overrunning clutch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111853095A CN111853095A (en) | 2020-10-30 |
| CN111853095B true CN111853095B (en) | 2022-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010795183.6A Active CN111853095B (en) | 2020-08-10 | 2020-08-10 | Volute spring type overrunning clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111853095B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2055630A5 (en) * | 1969-07-24 | 1971-05-07 | Kieninger & Obergfell | |
| CN202560879U (en) * | 2012-03-14 | 2012-11-28 | 任必祥 | Spiral spring retainer-type automobile one-way clutch |
| CN202756474U (en) * | 2012-06-29 | 2013-02-27 | 天津市津达执行器有限公司 | Manual-automatic switching clutch for electric executing mechanism |
| CN104373487A (en) * | 2014-10-23 | 2015-02-25 | 重庆从仁机电有限公司 | One-way overrunning clutch for motorcycle |
| CN109695639A (en) * | 2019-02-18 | 2019-04-30 | 许弟彬 | Pearl posture freewheel clutch |
-
2020
- 2020-08-10 CN CN202010795183.6A patent/CN111853095B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2055630A5 (en) * | 1969-07-24 | 1971-05-07 | Kieninger & Obergfell | |
| CN202560879U (en) * | 2012-03-14 | 2012-11-28 | 任必祥 | Spiral spring retainer-type automobile one-way clutch |
| CN202756474U (en) * | 2012-06-29 | 2013-02-27 | 天津市津达执行器有限公司 | Manual-automatic switching clutch for electric executing mechanism |
| CN104373487A (en) * | 2014-10-23 | 2015-02-25 | 重庆从仁机电有限公司 | One-way overrunning clutch for motorcycle |
| CN109695639A (en) * | 2019-02-18 | 2019-04-30 | 许弟彬 | Pearl posture freewheel clutch |
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| Publication number | Publication date |
|---|---|
| CN111853095A (en) | 2020-10-30 |
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