CN201714944U - One-way transmission gear - Google Patents
One-way transmission gear Download PDFInfo
- Publication number
- CN201714944U CN201714944U CN2010201952042U CN201020195204U CN201714944U CN 201714944 U CN201714944 U CN 201714944U CN 2010201952042 U CN2010201952042 U CN 2010201952042U CN 201020195204 U CN201020195204 U CN 201020195204U CN 201714944 U CN201714944 U CN 201714944U
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- Prior art keywords
- ratchet
- rotor
- unidirectional
- ring gear
- gear
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- Expired - Fee Related
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Abstract
The utility model provides a one-way transmission gear which belongs to the technical field of machinery, and solves the technical problems of quite poor one-way function reliability and the like of the prior art. The one-way transmission gear comprises a gear ring with a transmission gear on the outer side surface and a rotating body with a connecting hole in the middle; the gear ring is sleeved on the outer side of the rotating body and the gear ring and the rotating body can rotate relatively; the inner side surface of the gear ring is provided with a one-way ratchet; and the rotating body is provided with a pawl which can be meshed with the one-way ratchet. The one-way transmission gear has reasonable design and good reliability; and a bearing is arranged between the gear ring and the rotating body, thereby reducing the friction force and the wear between the gear ring and the rotating body, and prolonging the service life.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of driving gear, particularly a kind of unidirectional driving gear.
Background technique
Ratchet is a kind of driving gear with directivity restriction, is widely used in each transmission field.Ratchet is divided into outside ring gear and inner rotor, rotor links to each other with power mechanism, when the operative orientation of rotor and ratchet is consistent, rotor drives ring gear and rotates, when the operative orientation of rotor and ratchet is opposite, rotor and ring gear slide mutually, and rotor is around dallying from axle.
The back gear teeth and the gear on the coupling of vehicle of bicycle mostly are ratchets.The disclosed a kind of sleeve gear for speed changer of common ratchet such as patent (CN1290631A) comprises a plurality of teeth, and a plurality of teeth evenly are fixed on the plane of inclination, upper end of tubular teeth support, and with the plane of inclination be an overall structure.Be fixed with the ring-type ratchet on the lower end surface of tubular teeth support, also can on the lower end sidewall of tubular teeth support, be fixed with a plurality of ratchets in the form of a ring or be fixed with a plurality of teeth in the form of a ring.This sleeve gear for speed changer can be sleeved on the axis of inner speed change bicycle, realizes bicycle shift.But this gear structure is too simple, and the reliability of one-way function is relatively poor.
Summary of the invention
The purpose of this utility model is the problems referred to above that exist at existing technology, and a kind of unidirectional driving gear of reasonable in design, good reliability is provided.
The purpose of this utility model can realize by following technical proposal: a kind of unidirectional driving gear, comprise that outer side surface has the ring gear and the middle rotor with attachment hole of driving cog, it is characterized in that, described ring gear is socketed in the outside of rotor and both can rotate mutually, have unidirectional ratchet on the inner side surface of this ring gear, described rotor be provided with can with the ratchet of above-mentioned unidirectional ratchet engagement.
The working principle of this unidirectional driving gear is as follows: the rotating shaft on the power mechanism links to each other with rotor by attachment hole, and rotating shaft drives rotor and rotates.When the operative orientation of rotor and ratchet is consistent, ratchet and unidirectional ratchet engagement, rotor and ring gear are stuck, and rotor drives ring gear and rotates.When the operative orientation of rotor and ratchet is opposite, ratchet and unidirectional ratchet generation slide relative, rotor and ring gear get loose, and when rotating shaft drove rotor and rotates, rotor and ring gear slided mutually, rotor idle running.Adopt the structure of ratchet and unidirectional ratchet to make ring gear and rotor realize one-way function, reasonable in design, good reliability.
In above-mentioned a kind of unidirectional driving gear, be provided with bearing between described rotor and the ring gear, described bearing inner race is connected with rotor, and described bearing outer ring is connected with ring gear.After between ring gear and the rotor bearing being set, can reduce the frictional force between ring gear and the rotor, reduce both wearing and tearing.
In above-mentioned a kind of unidirectional driving gear, described bearing is positioned at the side of unidirectional ratchet.After bearing and unidirectional ratchet are arranged side by side, can save the space, make the layout of structure more reasonable.
In above-mentioned a kind of unidirectional driving gear, also be provided with the other end that can make ratchet between described ratchet and the rotor and produce to the resetting-mechanism of unidirectional ratchet against trend.
In above-mentioned a kind of unidirectional driving gear, described resetting-mechanism comprises a torsion spring, and described ratchet one end is hinged on the above-mentioned rotor, and described torsion spring one end is connected on the rotor, and the other end abuts on the pawl side.Utilize the elastic force of torsion spring that one end of ratchet is abutted on the unidirectional ratchet all the time, like this after ratchet and unidirectional ratchet break away from and slide relative takes place, ratchet also can be got back on the position with unidirectional ratchet engagement easily.
In above-mentioned a kind of unidirectional driving gear, the quantity of described ratchet is two, is symmetrical distribution.Two ratchets are symmetrically distributed, and make the stressed more even of ratchet.
In above-mentioned a kind of unidirectional driving gear, described unidirectional ratchet distributes in the form of a ring.When ratchet rotated together along with rotor, ratchet can be permanently connected to unidirectional ratchet.
Compared with prior art, this unidirectional driving gear adopts the structure of ratchet and unidirectional ratchet to make ring gear and rotor realize one-way function, and is reasonable in design, good reliability; Between ring gear and rotor, bearing is set, can reduces the frictional force between ring gear and the rotor, reduce both wearing and tearing, increase the service life.
Description of drawings
Fig. 1 is this unidirectional driving gear structure front view.
Fig. 2 is this unidirectional driving gear structure side view.
Among the figure, 1, ring gear; 2, rotor; 3, attachment hole; 4, unidirectional ratchet; 5, ratchet; 6, bearing; 7, torsion spring.
Embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As depicted in figs. 1 and 2, this unidirectional driving gear comprises that outer side surface has the ring gear 1 and the middle rotor 2 with attachment hole 3 of driving cog, ring gear 1 is socketed in the outside of rotor 2, be provided with bearing 6 between rotor 2 and the ring gear 1, bearing inner race is connected with rotor 2, bearing outer ring is connected with ring gear 1, can rotate mutually by bearing 6 between ring gear 1 and the rotor 2.After between ring gear 1 and the rotor 2 bearing 6 being set, can reduce the frictional force between ring gear 1 and the rotor 2, reduce both wearing and tearing.Have unidirectional ratchet 4 in the form of a ring on the inner side surface of ring gear 1, be symmetrical arranged two ratchets 5 on the rotor 2.Ratchet 5 one ends are hinged on the above-mentioned rotor 2, are provided with torsion spring 7 between ratchet 5 and the rotor 2, and torsion spring 7 one ends are connected on the rotor 2, and the other end abuts on ratchet 5 sides.Ratchet 5 and 4 engagements of unidirectional ratchet, the elastic force of torsion spring 7 abuts on the unidirectional ratchet 4 end of ratchet 5 all the time.Bearing 6 is positioned at the side of unidirectional ratchet 4, and bearing 6 and unidirectional ratchet 4 are arranged side by side, and can save the space like this, makes the layout of structure more reasonable.
The working principle of this unidirectional driving gear is as follows: the rotating shaft on the power mechanism links to each other with rotor 2 by attachment hole 3, and rotating shaft drives rotor 2 and rotates.When the operative orientation of rotor 2 and ratchet is consistent, ratchet 5 and 4 engagements of unidirectional ratchet, rotor 2 and ring gear 1 are stuck, and rotor 2 drives ring gear 1 and rotates.When the operative orientation of rotor 2 and ratchet was opposite, slide relative took place in ratchet 5 and unidirectional ratchet 4, and rotor 2 and ring gear 1 get loose, and when rotating shaft drove rotor 2 and rotates, rotor 2 and ring gear 1 slided mutually, and rotor 2 dallies around the shaft.After rotor 2 backward rotation stop, the elastic force of torsion spring 7 make ratchet 5 along the inclined-plane on the unidirectional ratchet 4 get back to unidirectional ratchet 4 position engaged on.This device adopts the structure of ratchet 5 and unidirectional ratchet 4 to make ring gear 1 and rotor 2 realize one-way function, and is reasonable in design, good reliability.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (7)
1. unidirectional driving gear, comprise that outer side surface has the rotor (2) that the ring gear of driving cog (1) and centre have attachment hole (3), it is characterized in that, described ring gear (1) is socketed in the outside of rotor (2) and both can rotate mutually, have unidirectional ratchet (4) on the inner side surface of this ring gear (1), described rotor (2) be provided with can with the ratchet (5) of above-mentioned unidirectional ratchet (4) engagement.
2. a kind of unidirectional driving gear according to claim 1, it is characterized in that, be provided with bearing (6) between described rotor (2) and the ring gear (1), described bearing (6) inner ring is connected with rotor (2), and described bearing (6) outer ring is connected with ring gear (1).
3. a kind of unidirectional driving gear according to claim 2 is characterized in that described bearing (6) is positioned at the side of unidirectional ratchet (4).
4. according to claim 1 or 2 or 3 described a kind of unidirectional driving gears, it is characterized in that, also be provided with the other end that can make ratchet (5) between described ratchet (5) and the rotor (2) and produce to the resetting-mechanism of unidirectional ratchet (4) against trend.
5. a kind of unidirectional driving gear according to claim 4, it is characterized in that, described resetting-mechanism comprises a torsion spring (7), described ratchet (5) one ends are hinged on the above-mentioned rotor (2), described torsion spring (7) one ends are connected on the rotor (2), and the other end abuts on ratchet (5) side.
6. according to claim 1 or 2 or 3 described a kind of unidirectional driving gears, it is characterized in that the quantity of described ratchet (5) is two, is symmetrical distribution.
7. according to claim 1 or 2 or 3 described a kind of unidirectional driving gears, it is characterized in that described unidirectional ratchet (4) distributes in the form of a ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201952042U CN201714944U (en) | 2010-05-19 | 2010-05-19 | One-way transmission gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201952042U CN201714944U (en) | 2010-05-19 | 2010-05-19 | One-way transmission gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201714944U true CN201714944U (en) | 2011-01-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201952042U Expired - Fee Related CN201714944U (en) | 2010-05-19 | 2010-05-19 | One-way transmission gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201714944U (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734428A (en) * | 2012-06-19 | 2012-10-17 | 无锡宇吉科技有限公司 | Ratchet wheel |
| CN102878266A (en) * | 2011-07-12 | 2013-01-16 | 王�琦 | Device capable of changing straight reciprocating movement to continuous circular movement |
| CN103143667A (en) * | 2011-09-10 | 2013-06-12 | 大众汽车有限公司 | Production method of formation of gear and gear manufactured according to same |
| CN108655823A (en) * | 2018-05-21 | 2018-10-16 | 常德市鼎城区灌溪镇岗市建大机械厂 | A kind of method of pneumatic rotary device and change rotation angle |
| CN108847363A (en) * | 2018-08-22 | 2018-11-20 | 江苏苏益电器股份有限公司 | A kind of ratchet mechanism and transmission mechanism, breaker using the ratchet mechanism |
| CN109139806A (en) * | 2018-07-23 | 2019-01-04 | 河钢股份有限公司 | It is a kind of that positive and negative rotation is inputted to the devices and methods therefor for being converted into unidirectionally exporting |
| CN110277872A (en) * | 2019-06-29 | 2019-09-24 | 南京奥灵克物联网科技有限公司 | A kind of motor bin for mechanical equipment |
| CN111231339A (en) * | 2020-02-06 | 2020-06-05 | 张书敏 | Bottle cap glue-applying pressure pad device |
| CN111268508A (en) * | 2018-12-04 | 2020-06-12 | 怀化宇隆电工材料有限公司 | Positioning guide device for enameled wire production line |
| CN111408150A (en) * | 2020-04-17 | 2020-07-14 | 奥飞娱乐股份有限公司 | Toy driving system and toy car |
| CN113028243A (en) * | 2021-04-07 | 2021-06-25 | 江苏联友科研仪器有限公司 | Special micro-fluidic centre gripping model of high temperature high pressure gas drive |
| CN113371123A (en) * | 2021-06-25 | 2021-09-10 | 李金旺 | Sliding gear variable speed shaft transmission structure |
| CN113931993A (en) * | 2020-07-14 | 2022-01-14 | 广州凡而芳香日用品有限公司 | Directional gear |
| CN114533385A (en) * | 2022-03-31 | 2022-05-27 | 中国人民解放军联勤保障部队第九八0医院 | Ophthalmology is used for improving rehabilitation equipment of eyesight |
-
2010
- 2010-05-19 CN CN2010201952042U patent/CN201714944U/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878266A (en) * | 2011-07-12 | 2013-01-16 | 王�琦 | Device capable of changing straight reciprocating movement to continuous circular movement |
| CN103143667A (en) * | 2011-09-10 | 2013-06-12 | 大众汽车有限公司 | Production method of formation of gear and gear manufactured according to same |
| CN103143667B (en) * | 2011-09-10 | 2017-04-12 | 大众汽车有限公司 | Production method of formation of gear and gear manufactured according to same |
| CN102734428A (en) * | 2012-06-19 | 2012-10-17 | 无锡宇吉科技有限公司 | Ratchet wheel |
| CN108655823A (en) * | 2018-05-21 | 2018-10-16 | 常德市鼎城区灌溪镇岗市建大机械厂 | A kind of method of pneumatic rotary device and change rotation angle |
| CN109139806A (en) * | 2018-07-23 | 2019-01-04 | 河钢股份有限公司 | It is a kind of that positive and negative rotation is inputted to the devices and methods therefor for being converted into unidirectionally exporting |
| CN108847363B (en) * | 2018-08-22 | 2023-09-12 | 江苏苏益电器股份有限公司 | Ratchet mechanism and transmission mechanism and circuit breaker adopting same |
| CN108847363A (en) * | 2018-08-22 | 2018-11-20 | 江苏苏益电器股份有限公司 | A kind of ratchet mechanism and transmission mechanism, breaker using the ratchet mechanism |
| CN111268508A (en) * | 2018-12-04 | 2020-06-12 | 怀化宇隆电工材料有限公司 | Positioning guide device for enameled wire production line |
| CN110277872A (en) * | 2019-06-29 | 2019-09-24 | 南京奥灵克物联网科技有限公司 | A kind of motor bin for mechanical equipment |
| CN111231339A (en) * | 2020-02-06 | 2020-06-05 | 张书敏 | Bottle cap glue-applying pressure pad device |
| CN111408150B (en) * | 2020-04-17 | 2021-11-30 | 奥飞娱乐股份有限公司 | Toy driving system and toy car |
| CN111408150A (en) * | 2020-04-17 | 2020-07-14 | 奥飞娱乐股份有限公司 | Toy driving system and toy car |
| CN113931993A (en) * | 2020-07-14 | 2022-01-14 | 广州凡而芳香日用品有限公司 | Directional gear |
| CN113028243A (en) * | 2021-04-07 | 2021-06-25 | 江苏联友科研仪器有限公司 | Special micro-fluidic centre gripping model of high temperature high pressure gas drive |
| CN113371123A (en) * | 2021-06-25 | 2021-09-10 | 李金旺 | Sliding gear variable speed shaft transmission structure |
| CN114533385A (en) * | 2022-03-31 | 2022-05-27 | 中国人民解放军联勤保障部队第九八0医院 | Ophthalmology is used for improving rehabilitation equipment of eyesight |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110119 Termination date: 20140519 |