CN114001105A - One-way ratchet structure - Google Patents
One-way ratchet structure Download PDFInfo
- Publication number
- CN114001105A CN114001105A CN202111289027.3A CN202111289027A CN114001105A CN 114001105 A CN114001105 A CN 114001105A CN 202111289027 A CN202111289027 A CN 202111289027A CN 114001105 A CN114001105 A CN 114001105A
- Authority
- CN
- China
- Prior art keywords
- ring
- positioning
- rotating shaft
- flange
- inner rotating
- 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.)
- Pending
Links
- 238000005096 rolling process Methods 0.000 claims abstract description 53
- 230000009471 action Effects 0.000 claims abstract description 6
- 230000001360 synchronised effect Effects 0.000 claims abstract description 6
- 230000007306 turnover Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 3
- 206010066054 Dysmorphism Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Images
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
-
- 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
- F16D2041/0643—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 the intermediate coupling members being of more than one size
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a one-way ratchet structure, comprising: the invention relates to a unidirectional ratchet structure, which comprises an inner rotating shaft, an outer rotating ring sleeved outside the inner rotating shaft and a rolling body arranged between the inner rotating shaft and the outer rotating ring, wherein the end surface of the inner rotating shaft facing the outer rotating ring is provided with a positioning boss, the rolling body is of an annular structure formed by a plurality of positioning balls and special-shaped balls surrounding the outer edge of the positioning boss, the periphery of the rolling body is sleeved with an elastic positioning ring, the middle part of the outer ring of the special-shaped balls is provided with a positioning groove, the special-shaped balls are provided with a first flange, a second flange and a third flange, a protruding limiting part is formed at the joint of the first flange and the second flange, when the rolling body rotates in a first direction, the third flange is attached to the inner rotating shaft under the action of the elastic positioning ring, so that the rolling body and the inner rotating shaft form synchronous linkage, and when the rolling body rotates in a second direction, the protruding limiting part is tightly clamped with the side wall of the inner ring of the outer rotating ring so as to limit the rotation of the inner rotating shaft, simple structure, stability is high, and the volume production is with low costs.
Description
Technical Field
The invention relates to the field of ratchet structures, in particular to a one-way ratchet structure.
Background
The one-way ratchet structure mechanism is mainly used for realizing the effects of one-way rotation and reverse braking, and the one-way ratchet structure in the prior art has the following defects: the assembly structure is relatively complicated, the assembly is tedious, and in the use, the structure lacks stability.
Disclosure of Invention
The invention mainly solves the technical problem of providing a one-way ratchet structure which has the advantages of fewer parts, simple and stable structure, small friction coefficient, long service life and greatly reduced production cost compared with the existing ratchet structure.
In order to solve the technical problems, the invention adopts a technical scheme that: there is provided a one-way ratchet structure including: the rolling element comprises an inner rotating shaft, an outer rotating ring coaxially sleeved outside the inner rotating shaft and a rolling element arranged between the inner rotating shaft and the outer rotating ring, wherein a positioning boss is arranged on the end face of the inner rotating shaft facing the outer rotating ring, the rolling element is of an annular structure formed by a plurality of positioning balls and special-shaped balls surrounding the outer edge of the positioning boss, an elastic positioning ring is sleeved on the periphery of the rolling element, a positioning groove is arranged in the middle of the outer ring of the special-shaped balls, the elastic positioning ring is clamped in the positioning groove, the special-shaped balls are provided with a first flange, a second flange and a third flange, a protruding limiting part is formed at the joint of the first flange and the second flange, the third flange is in contact with the outer edge of the inner rotating shaft, the rolling element can be stirred to rotate when the inner rotating shaft rotates, and when the rolling element rotates in the first direction, the third flange is attached to the inner rotating shaft under the action of the elastic positioning ring, the rolling body and the inner rotating shaft form synchronous linkage, and when the rolling body rotates towards the second direction, the protruding limiting part and the inner ring side wall of the outer rotating ring are clamped tightly to limit the rotation of the inner rotating shaft.
In a preferred embodiment of the present invention, the first direction is opposite to the second direction.
In a preferred embodiment of the present invention, the bottom surface of the positioning groove has a first position-limiting surface and a second position-limiting surface, and an included angle is formed between the first position-limiting surface and the second position-limiting surface.
In a preferred embodiment of the invention, the included angle is obtuse.
In a preferred embodiment of the invention, when the rolling body rotates in the first direction, the elastic locating ring is contacted with a first limiting surface of the bottom surface of the locating groove; when the rolling body has a turnover in the second direction, the elastic locating ring is in contact with the second limiting surface on the bottom surface of the locating groove.
In a preferred embodiment of the present invention, the elastic positioning ring is a tension spring.
In a preferred embodiment of the present invention, the positioning balls and the special-shaped balls are arranged at intervals, the positioning balls include four positioning balls and are equally distributed around the positioning boss, and a plurality of special-shaped balls are arranged between two adjacent positioning balls.
In a preferred embodiment of the present invention, the outer ring of the positioning ball is provided with a rolling groove for placing the elastic positioning ring.
In a preferred embodiment of the present invention, the rolling groove is an annular groove formed along the outer ring of the positioning ball.
In a preferred embodiment of the present invention, the rotation direction of the inner rotary shaft is opposite to the revolving direction of the rolling elements.
The invention has the beneficial effects that: compared with the existing ratchet structure, the ratchet structure has the advantages of fewer parts, simple and stable structure, small friction coefficient, long service life and greatly reduced production cost.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
FIG. 1 is an exploded view of a one-way ratchet arrangement of the present invention;
FIG. 2 is a schematic view of the installation of a one-way ratchet structure of the present invention;
FIG. 3 is a front view of a one-way ratchet structure according to the present invention, wherein the rolling elements are in a first direction of rotation;
FIG. 4 is a front view of the rolling elements in a second direction of their circulation in a one-way ratchet structure according to the present invention;
FIG. 5 is a schematic structural diagram of a shaped ball in a one-way ratchet structure according to the present invention;
FIG. 6 is a side view of a shaped ball in a one-way ratchet configuration of the present invention;
FIG. 7 is a schematic view of a positioning ball of a one-way ratchet structure according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, an embodiment of the invention is a unidirectional ratchet structure, including: the rolling bearing comprises an inner rotating shaft 1, an outer rotating ring 2 coaxially sleeved outside the inner rotating shaft, and a rolling body 3 arranged between the inner rotating shaft and the outer rotating ring, wherein a positioning boss 11 is arranged on the end surface of the inner rotating shaft facing the outer rotating ring, the rolling body is of an annular structure formed by a plurality of positioning balls 31 and special-shaped balls 32 surrounding the outer edge of the positioning boss, an elastic positioning ring 4 is sleeved on the periphery of the rolling body, specifically, the elastic positioning ring is a tension spring, a positioning groove 321 is arranged at the middle position of the outer ring of the special-shaped balls, the elastic positioning ring is clamped in the positioning groove to play a certain limiting and fixing role for the whole rolling body, the special-shaped balls are provided with a first flange 322, a second flange 323 and a third flange 324 formed on the back of the special-shaped balls at two sides of the positioning groove, a raised limiting part 325 is formed at the joint of the first flange 323 and the second flange, when the rolling body is installed, the rolling body is placed on the periphery of the positioning boss of the inner rotating shaft and is limited by the tension spring, at this moment, the external diameter that protruding spacing portion formed is greater than the internal diameter of outer rotating ring, and the effect of accessible extension spring makes the rotatory slight angle back of dysmorphism ball (rotate promptly to the external diameter that protruding spacing portion formed is less than the internal diameter of outer rotating ring after), with the rolling element installation restriction between outer rotating ring and interior internal rotation axle, the third flange at the dysmorphism ball back contacts with the outward flange of interior pivot, and can drive the rolling element when the internal rotation axle rotation carries out the turnover motion.
Referring to fig. 3-4, when the rolling element rotates in the first direction, the third flange is engaged with the inner rotating shaft under the action of the elastic positioning ring, so that the rolling element and the inner rotating shaft form a synchronous linkage, when the rolling element rotates in the second direction, the protruding limiting portion is clamped with the inner ring sidewall of the outer rotating ring to limit the rotation of the inner rotating shaft, the first direction is opposite to the second direction, and when the first direction is clockwise rotation, the second direction is counterclockwise rotation; when the first direction is counterclockwise rotation, the second direction is clockwise rotation.
Specifically, location ball and special-shaped ball looks interval set up, and the location ball includes four and equally divide the setting around the location boss, is provided with a plurality of special-shaped balls between the two adjacent location balls, as shown in fig. 7, sets up the annular rolling groove 311 of placing the elastic locating circle on the outer lane of location ball, utilizes four location balls of 360 degrees equidivisions this moment to make the internal rotation axle form the rotation that rolls in the outer circle of circling to reduce frictional force.
Referring to fig. 5-6, the bottom surface of the positioning groove has a first limiting surface 326 and a second limiting surface 327, an included angle is formed between the first limiting surface and the second limiting surface, the included angle is obtuse, based on the above structure, the rotation direction of the inner rotating shaft is opposite to the revolving direction of the rolling element, the following description takes the first direction as a clockwise rotation direction as an example, when the inner rotating shaft rotates counterclockwise to drive the rolling element to revolve clockwise, the elastic positioning ring contacts with the first limiting surface on the bottom surface of the positioning groove, the first flange and the second flange of the special-shaped ball are suspended in the outer rotating ring, the third flange is attached to the inner rotating shaft under the action of the elastic positioning ring, so that the rolling element and the inner rotating shaft form synchronous linkage, at this time, the four positioning balls enable the inner rotating shaft to form rolling rotation in the outer rotating ring, so that the friction resistance can be reduced by about 30%, when the rolling element revolves counterclockwise under the drive of the inner rotating shaft, the elastic positioning ring is in contact with the second limiting surface of the bottom surface of the positioning groove, at the moment, the protruding limiting part and the inner ring side wall of the outer rotating ring are clamped to limit the rotation of the inner rotating shaft, the structure is simple, the stability is good, the installation direction of the special-shaped ball can be confirmed according to the use requirement, the switching of the unidirectional rotation or the clamping of the inner rotating shaft can be realized, the smooth rotation state or the clamping state can be freely switched when the inner rotating shaft rotates clockwise or anticlockwise, and the operation is simple and convenient.
In conclusion, the one-way ratchet structure provided by the invention has the advantages that the structure is simple, the stability is good, when the third flange of the special-shaped ball is attached to the inner rotating shaft under the action of the elastic locating ring, the rolling body and the inner rotating shaft can form synchronous linkage, the rotation is smooth, the friction resistance is reduced by about 30%, when the convex limiting part of the special-shaped ball is tightly clamped with the side wall of the inner ring of the outer rotating ring, the rotation of the inner rotating shaft can be limited, and the structural stability is greatly improved compared with that of the existing ratchet one-way device.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A one-way ratchet structure comprising: the rolling element comprises an inner rotating shaft, an outer rotating ring coaxially sleeved outside the inner rotating shaft and a rolling body arranged between the inner rotating shaft and the outer rotating ring, and is characterized in that a positioning boss is arranged on the end face of the inner rotating shaft facing the outer rotating ring, the rolling body is of an annular structure formed by a plurality of positioning balls and special-shaped balls surrounding the outer edge of the positioning boss, an elastic positioning ring is sleeved on the periphery of the rolling body, a positioning groove is formed in the middle of the outer ring of the special-shaped balls, the elastic positioning ring is clamped in the positioning groove, the special-shaped balls are provided with a first flange, a second flange and a third flange, a protruding limiting part is formed at the joint of the first flange and the second flange, the third flange is in contact with the outer edge of the inner rotating shaft, the rolling body can be shifted to rotate when the inner rotating shaft rotates, and when the rolling body rotates in the first direction, the third flange is attached to the inner rotating shaft under the action of the elastic positioning ring, the rolling body and the inner rotating shaft form synchronous linkage, and when the rolling body rotates towards the second direction, the protruding limiting part and the inner ring side wall of the outer rotating ring are clamped tightly to limit the rotation of the inner rotating shaft.
2. The unidirectional ratchet structure of claim 1, wherein the first direction is opposite to the second direction of rotation.
3. The unidirectional ratchet structure of claim 1, wherein the bottom surface of the positioning groove has a first limiting surface and a second limiting surface, and an included angle is formed between the first limiting surface and the second limiting surface.
4. The one-way ratchet structure of claim 3, wherein said included angle is obtuse.
5. The one-way ratchet structure according to claim 3, wherein when the rolling bodies revolve in the first direction, the elastic locating ring is in contact with a first limiting surface on the bottom surface of the locating groove; when the rolling body has a turnover in the second direction, the elastic locating ring is in contact with the second limiting surface on the bottom surface of the locating groove.
6. The one-way ratchet structure according to claim 1, wherein the elastic positioning ring is a tension spring.
7. The unidirectional ratchet structure of claim 1, wherein the positioning balls are spaced apart from the shaped balls, the positioning balls comprise four positioning balls and are equally spaced around the positioning boss, and a plurality of shaped balls are disposed between two adjacent positioning balls.
8. The one-way ratchet structure according to claim 7, wherein the outer ring of the positioning ball is provided with a rolling groove for placing the elastic positioning ring.
9. The unidirectional ratchet structure of claim 8, wherein the rolling groove is an annular groove formed along the outer race of the positioning ball.
10. The unidirectional ratchet structure of claim 1, wherein the rotation direction of the inner rotating shaft is opposite to the revolving direction of the rolling bodies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111289027.3A CN114001105A (en) | 2021-11-02 | 2021-11-02 | One-way ratchet structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111289027.3A CN114001105A (en) | 2021-11-02 | 2021-11-02 | One-way ratchet structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114001105A true CN114001105A (en) | 2022-02-01 |
Family
ID=79926472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111289027.3A Pending CN114001105A (en) | 2021-11-02 | 2021-11-02 | One-way ratchet structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114001105A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114754067A (en) * | 2022-05-20 | 2022-07-15 | 江苏南方精工股份有限公司 | Self-centering overrunning belt pulley |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2177125Y (en) * | 1993-05-05 | 1994-09-14 | 孔庆堂 | Peach shape wedge single way super clutch with bearing at two ends |
| CN2177127Y (en) * | 1993-09-21 | 1994-09-14 | 孔庆堂 | Peach shape, fist shape wedge mixed single way super clutch |
| CN201475209U (en) * | 2009-08-14 | 2010-05-19 | 常州苏特轴承制造有限公司 | Peach-shaped sectional roller |
| CN201853636U (en) * | 2010-11-12 | 2011-06-01 | 王柏千 | Special-shaped roller overrunning clutch |
| CN103711656A (en) * | 2012-10-03 | 2014-04-09 | 株式会社捷太格特 | Power generation device |
| CN204041778U (en) * | 2014-08-08 | 2014-12-24 | 洛阳雷斯达传动有限公司 | A kind of free wheel device for high-power special vehicle torque-converters |
| CN204716812U (en) * | 2015-06-24 | 2015-10-21 | 北京新兴超越离合器有限公司 | The centrifugal free wheel device of a kind of voussoir |
| CN204755656U (en) * | 2015-06-15 | 2015-11-11 | 洛阳轴研科技股份有限公司 | Synthesize formula torque converter and use one -way freewheel clutch |
| CN211343794U (en) * | 2020-03-30 | 2020-08-25 | 常州苏特轴承制造有限公司 | Wedge type one-way overrunning clutch for gasoline engine and motorcycle engine |
| CN112178072A (en) * | 2020-11-06 | 2021-01-05 | 传孚科技（厦门）有限公司 | Overrunning clutch |
| CN112628372A (en) * | 2020-12-16 | 2021-04-09 | 西南大学 | Longitudinal driving self-adaptive taper clutch automatic speed changing system of electric automobile |
-
2021
- 2021-11-02 CN CN202111289027.3A patent/CN114001105A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2177125Y (en) * | 1993-05-05 | 1994-09-14 | 孔庆堂 | Peach shape wedge single way super clutch with bearing at two ends |
| CN2177127Y (en) * | 1993-09-21 | 1994-09-14 | 孔庆堂 | Peach shape, fist shape wedge mixed single way super clutch |
| CN201475209U (en) * | 2009-08-14 | 2010-05-19 | 常州苏特轴承制造有限公司 | Peach-shaped sectional roller |
| CN201853636U (en) * | 2010-11-12 | 2011-06-01 | 王柏千 | Special-shaped roller overrunning clutch |
| CN103711656A (en) * | 2012-10-03 | 2014-04-09 | 株式会社捷太格特 | Power generation device |
| CN204041778U (en) * | 2014-08-08 | 2014-12-24 | 洛阳雷斯达传动有限公司 | A kind of free wheel device for high-power special vehicle torque-converters |
| CN204755656U (en) * | 2015-06-15 | 2015-11-11 | 洛阳轴研科技股份有限公司 | Synthesize formula torque converter and use one -way freewheel clutch |
| CN204716812U (en) * | 2015-06-24 | 2015-10-21 | 北京新兴超越离合器有限公司 | The centrifugal free wheel device of a kind of voussoir |
| CN211343794U (en) * | 2020-03-30 | 2020-08-25 | 常州苏特轴承制造有限公司 | Wedge type one-way overrunning clutch for gasoline engine and motorcycle engine |
| CN112178072A (en) * | 2020-11-06 | 2021-01-05 | 传孚科技（厦门）有限公司 | Overrunning clutch |
| CN112628372A (en) * | 2020-12-16 | 2021-04-09 | 西南大学 | Longitudinal driving self-adaptive taper clutch automatic speed changing system of electric automobile |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114754067A (en) * | 2022-05-20 | 2022-07-15 | 江苏南方精工股份有限公司 | Self-centering overrunning belt pulley |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114001105A (en) | One-way ratchet structure | |
| CN216589676U (en) | One-way ratchet structure | |
| CN207345380U (en) | A kind of small-sized double omni-directional wheel | |
| JP3646452B2 (en) | Seal for ball screw | |
| CN207665064U (en) | Photographic device | |
| CN101586624A (en) | Light unidirectional bearing for washing machine clutch | |
| CN216278397U (en) | Roller device and peristaltic pump thereof | |
| JPH10332427A5 (en) | ||
| CN209909123U (en) | Gear movement mechanism with end face bearing | |
| CN208966863U (en) | A kind of novel one-way clutch bearing | |
| CN222717382U (en) | Gear rotating structure | |
| CN2134528Y (en) | Ball-roller bearing | |
| CN216553481U (en) | Novel positioning door ground shaft | |
| JP2001056025A5 (en) | ||
| CN223309928U (en) | A structure for rotating audio display screen and audio | |
| CN2470606Y (en) | Structural improvement of anti-reverse clutch | |
| CN112916341B (en) | A rotatable flexible clamp for coating of bearing rolling elements | |
| CN218845601U (en) | Base with independently rotating inner ring and outer ring | |
| CN218542998U (en) | One Way Bearing Assemblies | |
| CN215820789U (en) | Roller structure and floor cleaning machine | |
| CN219350061U (en) | Novel rotary switch | |
| CN222997564U (en) | Adjustable rotating basket and cabinet | |
| CN222254721U (en) | Cage of one-way bearing | |
| CN221605997U (en) | Low-abrasion flywheel of electric bicycle | |
| CN220929943U (en) | Direction rotating shaft device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |