CN108561455B - Torsional spring type overrunning clutch - Google Patents
Torsional spring type overrunning clutch Download PDFInfo
- Publication number
- CN108561455B CN108561455B CN201810811681.8A CN201810811681A CN108561455B CN 108561455 B CN108561455 B CN 108561455B CN 201810811681 A CN201810811681 A CN 201810811681A CN 108561455 B CN108561455 B CN 108561455B
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- CN
- China
- Prior art keywords
- torsion spring
- column
- baffle
- housing
- roller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000003860 storage Methods 0.000 claims description 15
- 210000000078 claw Anatomy 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 238000003754 machining Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- 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
Abstract
The invention provides a torsion spring type overrunning clutch which comprises a body, a housing, rollers and a baffle, wherein the housing and the baffle are respectively arranged on two sides of the body, the body is annular, a roller groove is formed in the inner peripheral wall of the body, the rollers are placed in the roller groove, a torsion spring parallel to the rollers is arranged between two adjacent rollers, the torsion spring is supported on a mounting post arranged on the housing, the front end of the mounting post is inserted into a supporting hole arranged on the baffle, and a torsion arm of the torsion spring abuts against the rear end of the previous roller. The inner peripheral wall of the clutch is simple in shape, easy to process and high in processing efficiency, production cost is effectively reduced, and more rollers can be accommodated to improve the bearing capacity of the clutch.
Description
Technical Field
The invention relates to a clutch, in particular to a torsion spring type overrunning clutch.
Background
The overrunning clutch is an important part for realizing power transmission and separation between the driving shaft and the driven shaft. The device has a self-clutch function by utilizing the speed change or the rotation direction change of the driving part and the driven part. The existing overrunning clutch comprises a housing and a body which are connected, wherein the end face of the housing is positioned on one side of the body, the body is annular, grooves used for placing rollers and pressure springs are formed in the inner peripheral wall of the body, the grooves are multiple and uniformly distributed, the bottom wall, the front wall and the rear wall of the existing grooves are formed by machining on the body, the shape of the existing grooves is complex, the broach structure used for broaching the grooves in the body is complex, the broaching allowance is large, the machining efficiency is low, the broach cost is high, the body consumes more materials due to the fact that the front wall and the rear wall of the grooves are arranged, and the production cost of the existing overrunning clutch is high. Moreover, because the internal space of the body is limited, the axis of the compression spring is longer, the axis of the compression spring is perpendicular to the rollers, and if the bearing capacity of the clutch is to be improved by increasing the number of the rollers, the number of the rollers is limited.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the torsion spring type overrunning clutch, which has the advantages of simple shape of the inner peripheral wall of the body, easy processing, high processing efficiency, effective reduction of production cost and capability of accommodating more rollers so as to improve the bearing capacity of the clutch.
In order to achieve the above purpose, the technical scheme provided by the invention is as follows: the utility model provides a torsional spring formula overrunning clutch, includes body, housing, roller and baffle, housing and baffle are installed respectively in the both sides of body, the body is the annular, is provided with the roller groove on the interior perisporium of body, has placed the roller in the roller groove, its characterized in that: a torsion spring parallel to the rollers is arranged between two adjacent rollers, the torsion spring is supported on a mounting post arranged on the housing, the front end of the mounting post is inserted into a supporting hole arranged on the baffle, and the torsion arm of the torsion spring abuts against the rear end of the previous roller.
The roller is abutted by the torsion spring, the torsion spring is supported on the housing, the traditional rear wall is not required to be arranged on the body to serve as a spring seat, the torsion spring can be supported on the housing in various modes, and the torsion spring can be connected with the supporting piece on the housing in a penetrating mode or a supporting leg clamping mode. Therefore, the back wall of the supporting spring does not need to be machined on the body, the process of machining a deep groove on the body is omitted, only a shallower roller groove needs to be machined, the machining tool is facilitated to be simplified, the cutting allowance of the machining tool is small, the machining efficiency is high, the service life of the tool is long, and the production cost of products can be reduced. More importantly, the torsion spring is parallel to the rollers, the torsion spring is small in size and small in occupied space, and the bearing capacity of the clutch can be improved by increasing the number of the rollers. And the torsion spring has strong bearing capacity of the power accumulation, high fatigue resistance, long service life and stable product quality. The mounting column is arranged on the cover shell, the structural design is ingenious, the torsion spring is firmly mounted, the work is stable and reliable, the front end of the mounting column is positioned by the supporting hole on the baffle plate, the strength and the rigidity of the mounting column are improved, and the bearing capacity is improved.
Further, for optimizing the structure, the space is reasonably configured, the housing comprises an end plate and a circumference part, the inner hole size of the end plate is smaller than that of the body, a mounting column for penetrating the torsion spring is arranged on the periphery of the inner hole of the end plate, the mounting column is integrally formed with the housing or connected with the housing, the mounting column is parallel to the axis of the roller, and the circumference part is tightly matched with the outer circumference of the body.
Further, for promoting the intensity of erection column, more reliable and stable, erection column and housing integrated into one piece, erection column include shaft and root of a column, and the width dimension of root of a column is greater than the width dimension of shaft of a column, is provided with the circular arc groove in the both sides of root of a column, and one side in circular arc groove meets with the root of a column. The arc groove can avoid stress concentration, so that the mounting column is easier to fold and fold for forming on one hand, and on the other hand, when bearing load in work, the stress concentration is not easy to occur on two sides of the root of the mounting column, so that the mounting column is broken.
Further, the inner hole size of the baffle is smaller than the inner hole size of the housing. The housing, body and baffle form a working chamber for the roller and torsion spring.
Further, the mounting column is T-shaped, the column root is rectangular, the column body is rectangular, the free end of the column body is provided with an inclined plane and gradually narrows, and the supporting hole is provided with a flanging towards the column body. The free end of the column body is pointed and is easy to be installed with the supporting hole, and the flange of the supporting hole increases the supporting area of the front end of the column body, so that the bearing capacity is improved.
Further, in order to improve the bearing capacity of the torsion spring and enable the torsion spring to be reliably installed, the torsion spring is a double torsion spring, a U-shaped torsion arm positioned in the middle is connected with spring rings on two sides, each spring ring comprises a force storage ring close to the torsion arm and a seat ring positioned at two ends of the torsion spring, the outer diameter of the force storage ring is larger than that of the seat ring, and an inner hole of the seat ring is a square hole with 4 circular arc angles; the mounting post is provided with at least two rectangular side surfaces which are parallel, and the mounting post is matched with the square hole of the seat ring. The force storage ring is large, torsion is stored in the torsion spring, the square hole of the seat ring is matched with the mounting column, the torsion spring cannot rotate relative to the mounting column, and the torsion arm can work with force storage.
Further, in order to make the structure more compact and achieve the required torsion force, the number of turns of the power storage ring of the spring ring on one side is 2-4, the torsion spring is positioned on the rear lower side of the roller, and the torsion arm extends out from the obliquely upper side of the torsion spring and is propped against the roller.
Further, in order to prevent the baffle from rotating circumferentially, a bent positioning claw is arranged on the periphery of the baffle, a baffle positioning hole is formed in the body, and the positioning claw stretches into the baffle positioning hole.
Further, in order to prevent the housing from rotating circumferentially, an anti-slip hole is formed in the housing, a positioning flange is arranged on one side of the body, counter bores opposite to the anti-slip hole are formed in the body, and the positioning flange is matched with the counter bores.
Further, the number of the rollers is 9-16.
Compared with the prior art, the invention has the beneficial effects that:
1. the inner peripheral wall of the clutch is simple in shape, easy to process and high in processing efficiency, production cost is effectively reduced, and more rollers can be accommodated to improve the bearing capacity of the clutch;
2. the cutter for processing the roller groove can be simplified, the service life of the cutter can be prolonged, and the cost of the cutter is reduced;
3. only a shallower roller groove is needed to be machined on the inner hole of the body, and a wall for supporting the pressure spring is not needed to be machined, so that the material consumption of the body is reduced, the raw materials are saved, and the raw material cost is reduced;
4. the double torsion springs have strong force storage capacity and high bearing capacity, and the mounting columns are arranged on the cover shell, so that the double torsion springs are ingenious in structural design, firm in torsion spring installation and stable and reliable in work.
Drawings
Fig. 1 is a schematic structural view of the present invention.
FIG. 2 is a schematic view of the assembly of the baffle, body and housing of the present invention.
Fig. 3 is a partial enlarged view of fig. 1.
Fig. 4 is a schematic structural view of the housing in fig. 1.
Fig. 5 is an enlarged view of a portion of the mounting post of fig. 4 deployed.
FIG. 6 is a schematic view of the torsion spring of FIG. 1.
FIG. 7 is a second schematic structural view of the torsion spring of FIG. 1.
Fig. 8 is an enlarged view of a portion of the baffle of fig. 2.
The present invention will be described in further detail with reference to the accompanying drawings.
Detailed Description
As shown in fig. 1 to 8, a torsion spring type overrunning clutch comprises a body 1, a housing 2, rollers 3 and a baffle 4, wherein the housing 2 is arranged on one side of the body 1, the baffle 4 is arranged on the other side of the body 1, the body 1 is annular, 9-12 roller grooves 11 are formed in the inner peripheral wall of the body 1, in the embodiment, 9 roller grooves 11 are formed, the rollers 3 are placed in the roller grooves 11, a torsion spring 5 parallel to the rollers 3 is arranged between two adjacent rollers 3, the torsion spring 5 is supported on the housing 2, and a torsion arm 51 of the torsion spring 5 abuts against the rear end of the previous roller 3.
As shown in fig. 2, fig. 4 and fig. 5, in order to optimize the structure and to reasonably configure the space, the housing 2 includes an end plate and a circumferential portion, the inner hole size of the end plate is smaller than the inner hole size of the body 1, the periphery of the inner hole of the end plate is provided with a mounting post 21 for threading the torsion spring 5, the mounting post 21 is integrally formed with the housing 2 or connected with the housing 2, in this embodiment, an integrally formed manner is adopted, so as to improve the strength of the mounting post 21, and the mounting post 21 can be fastened on the housing 2, and the mounting post 21 is parallel to the axis of the roller 3. The circumferential portion of the housing 2 is tightly fitted to the outer circumference of the body 1. The inner hole size of the baffle 4 is smaller than that of the housing 2, and the front end of the mounting post 21 is inserted into a supporting hole 41 (shown in fig. 8) provided in the baffle 4. The housing 2, the body 1 and the baffle 4 form a working cavity of the roller 3 and the torsion spring 5, the front end of the mounting column 21 is positioned by the supporting hole 41 on the baffle 4, the strength and the rigidity of the mounting column 21 are improved, and the bearing capacity is improved.
As shown in fig. 5, the mounting post 21 includes a post body 211 and a post root 212, the mounting post 21 is T-shaped, the post root 212 is rectangular, the width dimension of the post root 212 is larger than the width dimension of the post body 211, the post body 211 is a rectangular bar, the free end of the post body 211 is provided with an inclined surface to be gradually narrowed, and the support hole 41 is provided with a turned edge toward the post body 211. The free end of the column body 211 is pointed and is easy to be installed with the supporting hole 41, and the flange of the supporting hole 41 increases the supporting area of the front end of the column body 211 and improves the bearing capacity. Arc grooves 213 are provided on both sides of the column root 212, and one side of the arc groove 213 is connected to the root of the column root 212. The arc grooves 213 can avoid stress concentration, so that the mounting column 21 is easier to fold and form, and on the other hand, when the mounting column is under load during operation, the stress concentration is not easy to occur on the two sides of the root of the mounting column 21, so that the mounting column 21 is broken.
As shown in fig. 1, 3, 6 and 7, the torsion spring 5 is located at the rear lower side of the roller 3 in order to make the structure more compact and to achieve a required torsion force. In order to improve the bearing capacity of the torsion spring 5 and enable the torsion spring 5 to be reliably installed, the torsion spring 5 is a double torsion spring, a U-shaped torsion arm 51 positioned in the middle is connected with spring rings on two sides, and the torsion arm 51 extends from the obliquely upper side of the torsion spring 5 to prop against the roller 3. The spring ring comprises a force storage ring 52 close to the torsion arm 51 and seat rings 53 positioned at two ends of the torsion spring 5, the outer diameter of the force storage ring 52 is larger than that of the seat rings 53, the number of turns of the force storage ring 52 of the spring ring at one side is 2-4, and the rotation directions of the force storage rings 52 at two sides are opposite. The inner bore of the race 53 is a square bore with 4 circular arc angles. The mounting post 21 has at least two rectangular sides that are parallel, and the mounting post 21 is adapted to the square hole of the seat ring 53. The outer diameter of the force storage ring 52 is larger, so that torsion is stored in the torsion spring 5, the square hole of the seat ring 53 is matched with the mounting column 21, the torsion spring 5 cannot rotate relative to the mounting column 21, and the torsion arm 51 can work in a force storage mode.
As shown in fig. 2 and fig. 4, in order to prevent the casing 2 from rotating circumferentially, an anti-slip hole 22 is provided on the casing 2, the anti-slip hole 22 is provided with a positioning flange toward one side of the body 1, the body 1 is provided with a counter bore 12 opposite to the anti-slip hole 22, and the positioning flange is adapted to the counter bore 12. In order to prevent the baffle plate 4 from rotating circumferentially, a bent positioning claw 42 is arranged on the periphery of the baffle plate 4, a baffle plate positioning hole 12 is arranged on the body 1, and the positioning claw 42 extends into the baffle plate positioning hole 12.
The invention has the advantages of simple shape of the inner peripheral wall of the body, easy processing, high processing efficiency, effective reduction of production cost, and capability of accommodating more rollers and improving the bearing capacity of the clutch.
The above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered by the scope of the claims of the present invention.
Claims (6)
1. The utility model provides a torsional spring formula overrunning clutch, includes body, housing, roller and baffle, housing and baffle are installed respectively in the both sides of body, the body is the annular, is provided with the roller groove on the interior perisporium of body, has placed the roller in the roller groove, its characterized in that: a torsion spring parallel to the rollers is arranged between two adjacent rollers, the torsion spring is supported on a mounting post arranged on the housing, the front end of the mounting post is inserted into a supporting hole arranged on the baffle, and the torsion arm of the torsion spring is propped against the rear end of the previous roller;
the housing comprises an end plate and a circumferential part, the inner hole size of the end plate is smaller than that of the body, a mounting column for penetrating the torsion spring is arranged on the periphery of the inner hole of the end plate, the mounting column and the housing are integrally formed, the mounting column is parallel to the axis of the roller, and the circumferential part is tightly matched with the outer circumference of the body; the mounting column comprises a column body and a column root, the width dimension of the column root is larger than that of the column body, arc grooves are formed in two sides of the column root, and one side of each arc groove is connected with the root of the column root; the mounting column is T-shaped, the column root is rectangular, the column body is rectangular, the free end of the column body is provided with an inclined plane and gradually narrows, and the supporting hole is provided with a turned-over edge facing the column body; the torsion spring is a double torsion spring, a U-shaped torsion arm positioned in the middle is connected with spring rings at two sides, each spring ring comprises a force storage ring close to the torsion arm and a seat ring positioned at two ends of the torsion spring, the outer diameter of the force storage ring is larger than that of the seat ring, and an inner hole of the seat ring is a square hole with 4 circular arc angles; the mounting post is provided with at least two rectangular side surfaces which are parallel, and the mounting post is matched with the square hole of the seat ring.
2. The torsional spring type overrunning clutch as defined in claim 1, wherein: the inner hole size of the baffle is smaller than that of the housing.
3. The torsional spring type overrunning clutch as defined in claim 1, wherein: the number of turns of the power storage ring of the spring ring at one side is 2-4, the torsion spring is positioned at the rear lower side of the roller, and the torsion arm extends out from the obliquely upper side of the torsion spring to prop against the roller.
4. The torsional spring type overrunning clutch as defined in claim 1, wherein: the periphery of baffle is provided with the locating claw of bending set up the baffle locating hole on the body, the locating claw stretches into in the baffle locating hole.
5. The torsional spring type overrunning clutch as defined in claim 1, wherein: the anti-skid cover is characterized in that an anti-skid hole is formed in the cover shell, a positioning flanging is arranged on one side of the anti-skid hole towards the body, counter bores opposite to the anti-skid hole are formed in the body, and the positioning flanging is matched with the counter bores.
6. The torsion spring overrunning clutch according to any one of claims 1-5, wherein: the number of the rollers is 9-16.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810811681.8A CN108561455B (en) | 2018-07-23 | 2018-07-23 | Torsional spring type overrunning clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810811681.8A CN108561455B (en) | 2018-07-23 | 2018-07-23 | Torsional spring type overrunning clutch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108561455A CN108561455A (en) | 2018-09-21 |
| CN108561455B true CN108561455B (en) | 2024-03-29 |
Family
ID=63555861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810811681.8A Active CN108561455B (en) | 2018-07-23 | 2018-07-23 | Torsional spring type overrunning clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108561455B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109695639A (en) * | 2019-02-18 | 2019-04-30 | 许弟彬 | Pearl posture freewheel clutch |
| CN113772435A (en) * | 2021-08-26 | 2021-12-10 | 深圳市德兰明海科技有限公司 | Flip subassembly and energy storage product |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4664237A (en) * | 1986-04-07 | 1987-05-12 | General Motors Corporation | Overrunning roller clutch with increased load capacity |
| US5279400A (en) * | 1992-12-08 | 1994-01-18 | Borg-Warner Automotive Inc. | One-way roller clutch |
| US6374974B1 (en) * | 1998-11-06 | 2002-04-23 | Nsk-Warner K.K. | Roller type clutch mechanism |
| JP2011149540A (en) * | 2010-01-25 | 2011-08-04 | Jtekt Corp | Retainer assembly and one-way clutch |
| CN201953858U (en) * | 2011-03-01 | 2011-08-31 | 重庆耐迪机电有限公司 | Overrun clutch with combined spring-shaped cavity |
| CN203453338U (en) * | 2013-08-01 | 2014-02-26 | 重庆耐迪机电有限公司 | Combined spring cavity overrunning clutch |
| CN104315035A (en) * | 2014-10-23 | 2015-01-28 | 重庆从仁机电有限公司 | Torsion spring type overrun clutch |
| CN204344750U (en) * | 2014-12-23 | 2015-05-20 | 湖北航天技术研究院特种车辆技术中心 | A kind of fluid torque converter overrunning clutch |
| CN208951157U (en) * | 2018-07-23 | 2019-06-07 | 重庆耐迪机电有限公司 | A kind of torsion spring type freewheel clutch |
-
2018
- 2018-07-23 CN CN201810811681.8A patent/CN108561455B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4664237A (en) * | 1986-04-07 | 1987-05-12 | General Motors Corporation | Overrunning roller clutch with increased load capacity |
| US5279400A (en) * | 1992-12-08 | 1994-01-18 | Borg-Warner Automotive Inc. | One-way roller clutch |
| US6374974B1 (en) * | 1998-11-06 | 2002-04-23 | Nsk-Warner K.K. | Roller type clutch mechanism |
| JP2011149540A (en) * | 2010-01-25 | 2011-08-04 | Jtekt Corp | Retainer assembly and one-way clutch |
| CN201953858U (en) * | 2011-03-01 | 2011-08-31 | 重庆耐迪机电有限公司 | Overrun clutch with combined spring-shaped cavity |
| CN203453338U (en) * | 2013-08-01 | 2014-02-26 | 重庆耐迪机电有限公司 | Combined spring cavity overrunning clutch |
| CN104315035A (en) * | 2014-10-23 | 2015-01-28 | 重庆从仁机电有限公司 | Torsion spring type overrun clutch |
| CN204344750U (en) * | 2014-12-23 | 2015-05-20 | 湖北航天技术研究院特种车辆技术中心 | A kind of fluid torque converter overrunning clutch |
| CN208951157U (en) * | 2018-07-23 | 2019-06-07 | 重庆耐迪机电有限公司 | A kind of torsion spring type freewheel clutch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108561455A (en) | 2018-09-21 |
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Effective date of registration: 20181128 Address after: 401329 Eight Houses of Hailong Village, Baishiyi Town, Jiulongpo District, Chongqing Applicant after: CHONGQING NAIDI ELECTROMECHANICAL Co.,Ltd. Address before: 401329 Eight Houses of Hailong Village, Baishiyi Town, Jiulongpo District, Chongqing Applicant before: Xu Dibin |
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