CN111396523A - Ratchet mechanism and application thereof in distribution device - Google Patents
Ratchet mechanism and application thereof in distribution device Download PDFInfo
- Publication number
- CN111396523A CN111396523A CN202010248504.0A CN202010248504A CN111396523A CN 111396523 A CN111396523 A CN 111396523A CN 202010248504 A CN202010248504 A CN 202010248504A CN 111396523 A CN111396523 A CN 111396523A
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- Prior art keywords
- gear
- incomplete gear
- ratchet mechanism
- tooth
- incomplete
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- 230000007246 mechanism Effects 0.000 title claims abstract description 45
- 230000005540 biological transmission Effects 0.000 claims abstract description 6
- 210000003781 tooth socket Anatomy 0.000 claims description 3
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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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
- F16H—GEARING
- F16H27/00—Step-by-step mechanisms without freewheel members, e.g. Geneva drives
- F16H27/04—Step-by-step mechanisms without freewheel members, e.g. Geneva drives for converting continuous rotation into a step-by-step rotary movement
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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
- F16D41/12—Freewheels or freewheel clutches with hinged pawl co-operating with teeth, cogs, or the like
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention provides a ratchet mechanism and application thereof in a distribution device, wherein the ratchet mechanism comprises a middle shaft, an incomplete gear which can be meshed with a transmission rack and a rotating single tooth, one end of the middle shaft is connected with the incomplete gear, the other end of the middle shaft is connected with a mechanism to be transmitted through an elastic mechanism, and the incomplete gear is connected with the rotating single tooth. By adopting the technical scheme of the invention, the incomplete gear and the rotating single gear are matched to do reciprocating motion, the gear and the rack are meshed and separated, the assembly structure is compact, unidirectional driving is effectively finished by depending on unidirectional acting force of the gear, the product quality is improved, the use is convenient and reliable, and the structure is simple.
Description
Technical Field
The invention belongs to the technical field of mechanical transmission, and particularly relates to a ratchet mechanism and application thereof in a distribution device.
Background
The ratchet is short for the mixed application of a ratchet mechanism and a gear mechanism, and the mechanism is applied to an intermittent motion mechanism which rotates continuously or rotates in a reciprocating way and converts the continuous rotation or the reciprocating motion into unidirectional stepping motion. Mainly comprises a gear, a ratchet wheel, a rocker and a spring. The rocker is a motion input member and the ratchet gear is a motion output member. When the rocker swings, the ratchet gear rotates through a certain angle simultaneously within a certain angle range.
The existing gear is generally a complete gear according to a circumferential rule, and the gear cannot be stressed under a single action and cannot be driven in a single direction. Most of the existing ratchet mechanisms adopt a single-pawl structure, and the ratchet mechanisms are low in precision and cannot meet the action required by high precision. The gear tooth processing technology of the micro ratchet which meets the high-precision action is complex and difficult to realize, and the precision of the ratchet mechanism is small, so that the accurate return of the pawl cannot be met.
Disclosure of Invention
Aiming at the technical problems, the invention discloses a ratchet mechanism and application thereof in a distribution device, which effectively complete one-way driving, improve the product quality and realize accurate return.
In contrast, the technical scheme adopted by the invention is as follows:
a ratchet mechanism comprises a middle shaft, an incomplete gear and a rotating single tooth, wherein the incomplete gear can be meshed with a transmission rack, one end of the middle shaft is connected with the incomplete gear, the other end of the middle shaft is connected with a mechanism to be transmitted, and the incomplete gear is connected with the rotating single tooth. Further, the incomplete gear is connected with the rotating single gear through an elastic mechanism. Further, the elastic mechanism is a single-tooth torsion spring.
Furthermore, the other end of the middle shaft is provided with a clamping groove, and the mechanism to be driven is connected with the clamping groove.
As a further improvement of the invention, the incomplete gear is provided with a tooth slot position, and the rotating single tooth is positioned in the tooth slot position; the rotary single gear is connected with the teeth of the incomplete gear through a single-gear torsion spring. The rotating single tooth rotates in the range of the tooth groove position of the incomplete gear.
Further, the rotating single tooth is positioned in the tooth socket position of the outermost side of the incomplete gear.
As a further improvement of the invention, the rotating single tooth is connected with the incomplete gear through a connecting rod.
As a further improvement of the invention, one end of the connecting rod is fixedly connected with the rotating single tooth, and the other end of the connecting rod passes through the single-tooth torsion spring to be connected with the incomplete gear.
As a further improvement of the invention, the rotating single gear is provided with a clamping position, one end of the single-gear torsion spring is contacted with the clamping position, and the other end of the single-gear torsion spring is contacted with the lower limit position of the incomplete gear.
As a further improvement of the invention, the connecting rod is fixedly connected with the incomplete gear. Further, the other end of the connecting rod is connected with the incomplete gear through a bolt.
The invention also discloses the application of the ratchet mechanism in the dispensing device, and the ratchet mechanism is applied to a transmission mechanism of the dispensing device.
Compared with the prior art, the invention has the beneficial effects that:
according to the technical scheme, the incomplete gear and the rotating single tooth are matched to do reciprocating motion, the rotating single tooth is embedded into the gear and depends on the action of the torsion spring, the gear and the rack are meshed and separated, the assembly is compact in structure, unidirectional driving is effectively completed by means of unidirectional acting force of the gear, the product quality is improved, and the gear is convenient and reliable to use and simple in structure.
Drawings
Figure 1 is an exploded view of a ratchet mechanism of the present invention.
FIG. 2 is a functional schematic of a ratchet mechanism of the present invention; wherein, (a) is a rack ascending state, (b) is a rack descending state, and (c) is a rack disengaging state.
Figure 3 is a cross-sectional view of a ratchet mechanism of the present invention.
Fig. 4 is a schematic structural diagram of the direction G-G in fig. 3, in which (a) is an upper limit and (b) is a lower limit.
The reference numerals include:
1-middle shaft, 2-incomplete gear, 3-rotary single tooth, 4-tooth groove position, 5-connecting rod, 6-clamping groove, 7-clamping position, 8-single tooth torsion spring and 9-bolt; 10-rack, 11-torsion spring.
1081-middle shaft, 1082-incomplete gear, 1083-rotating single tooth, 1084-tooth groove, 1085-connecting rod, 1086-clamping groove, 1087-clamping position, 1088-single tooth torsion spring, 1089-bolt; 109-rack, 11-torsion spring.
Detailed Description
Preferred embodiments of the present invention are described in further detail below.
Example 1
As shown in fig. 1 to 4, the ratchet mechanism includes a central shaft 1, an incomplete gear 2 capable of meshing with a rack 10, and a rotating single tooth 3, one end of the central shaft 1 is connected with the incomplete gear 2, the other end of the central shaft 1 is provided with a clamping groove 6, the clamping groove 6 is connected with a mechanism to be driven, and the incomplete gear 2 is connected with the rotating single tooth 3. Furthermore, the central shaft 1 is connected with a mechanism to be driven through a torsion spring 11.
The incomplete gear 2 is provided with a tooth groove position 4, and the rotary single tooth 3 is positioned in the tooth groove position 4 and can rotate in the tooth groove position 4. The rotary single gear 3 is connected with the teeth of the incomplete gear 2 through a single-tooth torsion spring 8.
The rotating single gear 3 is rotationally connected with a connecting rod 5; rotatory monodentate 3 is equipped with screens 7, connecting rod 5 passes monodentate torsion spring 8, penetrates in the through-hole of tooth's socket position 4 of incomplete gear 2 again, monodentate torsion spring 8's one end and screens 7 contact, the lower spacing contact of the other end and incomplete gear 2. The lower end of the connecting rod 5 is fixed on the incomplete gear 2 through a bolt 9, and the rotating single tooth 3 can rotate in the range of the tooth space 4 of the incomplete gear 2.
The working principle is as follows:
(1) when the rack 10 runs upwards, the rotating single tooth 3 is pushed to the upper limit position of the tooth socket position 4, so that the incomplete gear 2 is in an idle state.
(2) When the rack 10 moves downwards, the rotating single tooth 3 rotates to the lower limit position by the acting force of the single-tooth torsion spring 8, and at the moment, the rack 10 is meshed with the incomplete gear 2 to drive the incomplete gear 2 to rotate.
(3) When the rack 10 continues to descend, the rack 10 is disengaged from the incomplete gear 2, and the incomplete gear 2 returns to the initial position by the force of the single-tooth torsion spring 8.
Above-mentioned ratchet mechanism can use in the distribution device, is reciprocating motion through incomplete gear 2 and the cooperation of rotatory monodentate 3, through inlaying rotatory monodentate 3 and relying on monodentate torsion spring 8's effect, realizes the meshing and the separation of gear and rack 10, and subassembly compact structure relies on the effort of gear unilateral, effectively accomplishes one-way drive, promotes product quality, and convenient to use is reliable, simple structure.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (9)
1. A ratchet mechanism characterized by: the gear transmission mechanism comprises a middle shaft, an incomplete gear and a rotating single tooth, wherein the incomplete gear can be meshed with a transmission rack, one end of the middle shaft is connected with the incomplete gear, the other end of the middle shaft is connected with a mechanism to be transmitted, and the incomplete gear is connected with the rotating single tooth through an elastic mechanism.
2. The ratchet mechanism of claim 1, wherein: the incomplete gear is provided with a tooth groove position, and the rotating single tooth is positioned in the tooth groove position; the rotary single gear is connected with the teeth of the incomplete gear through a single-gear torsion spring.
3. The ratchet mechanism of claim 2, wherein: the rotating single tooth is positioned in the tooth socket position of the outermost side of the incomplete gear.
4. The ratchet mechanism of claim 2, wherein: the rotary single gear is connected with the incomplete gear through a connecting rod.
5. The ratchet mechanism of claim 4, wherein: one end of the connecting rod is fixedly connected with the rotating single gear, and the other end of the connecting rod penetrates through the single-gear torsion spring to be connected with the incomplete gear.
6. The ratchet mechanism of claim 5, wherein: the rotary single gear is provided with a clamping position, one end of the single-gear torsion spring is in contact with the clamping position, and the other end of the single-gear torsion spring is in lower limit contact with the incomplete gear.
7. The ratchet mechanism of claim 5, wherein: the other end of the connecting rod is connected with the incomplete gear through a bolt.
8. The ratchet mechanism of claim 5, wherein: the other end of the middle shaft is provided with a clamping groove, and the mechanism to be driven is connected with the clamping groove.
9. Use of a ratchet mechanism according to any of claims 1 to 8 in a dispensing device, wherein: the ratchet mechanism is applied to a transmission mechanism of a dispensing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010248504.0A CN111396523A (en) | 2020-04-01 | 2020-04-01 | Ratchet mechanism and application thereof in distribution device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010248504.0A CN111396523A (en) | 2020-04-01 | 2020-04-01 | Ratchet mechanism and application thereof in distribution device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111396523A true CN111396523A (en) | 2020-07-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010248504.0A Pending CN111396523A (en) | 2020-04-01 | 2020-04-01 | Ratchet mechanism and application thereof in distribution device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111396523A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61256056A (en) * | 1985-05-09 | 1986-11-13 | Canon Inc | Shuttle mover |
| CN201281115Y (en) * | 2008-03-21 | 2009-07-29 | 刘焕营 | Novel isolator and motion converting device assembled thereby |
| KR20100133145A (en) * | 2009-06-11 | 2010-12-21 | 유장호 | One way power transmission apparatus |
| CN103742704A (en) * | 2013-10-11 | 2014-04-23 | 阮迪荣 | Mechanical type timing valve |
| CN104696467A (en) * | 2015-03-13 | 2015-06-10 | 中国建材检验认证集团股份有限公司 | Mechanical-energy-storing type incomplete gear quick-return reciprocating mechanism and working method thereof |
| JP2015140896A (en) * | 2014-01-30 | 2015-08-03 | 矢継 正信 | Reciprocating rotation converting mechanism |
| US20180156312A1 (en) * | 2016-12-07 | 2018-06-07 | Shuo-Yu Wang | Uni-Directional Drive Gear and a Gear Transmission Device with the Same |
| KR20190085248A (en) * | 2018-01-10 | 2019-07-18 | 허성범 | Power transmission device, dynamo-electric generator and wave energy generator having the same |
| DE102018004614A1 (en) * | 2018-06-07 | 2019-12-12 | Sergei Afanasiev | Method for converting a reciprocating motion in a one-way continuous rotary motion and ASV clutches on this basis and also hand tools based on these ASV clutches |
-
2020
- 2020-04-01 CN CN202010248504.0A patent/CN111396523A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61256056A (en) * | 1985-05-09 | 1986-11-13 | Canon Inc | Shuttle mover |
| CN201281115Y (en) * | 2008-03-21 | 2009-07-29 | 刘焕营 | Novel isolator and motion converting device assembled thereby |
| KR20100133145A (en) * | 2009-06-11 | 2010-12-21 | 유장호 | One way power transmission apparatus |
| CN103742704A (en) * | 2013-10-11 | 2014-04-23 | 阮迪荣 | Mechanical type timing valve |
| JP2015140896A (en) * | 2014-01-30 | 2015-08-03 | 矢継 正信 | Reciprocating rotation converting mechanism |
| CN104696467A (en) * | 2015-03-13 | 2015-06-10 | 中国建材检验认证集团股份有限公司 | Mechanical-energy-storing type incomplete gear quick-return reciprocating mechanism and working method thereof |
| US20180156312A1 (en) * | 2016-12-07 | 2018-06-07 | Shuo-Yu Wang | Uni-Directional Drive Gear and a Gear Transmission Device with the Same |
| KR20190085248A (en) * | 2018-01-10 | 2019-07-18 | 허성범 | Power transmission device, dynamo-electric generator and wave energy generator having the same |
| DE102018004614A1 (en) * | 2018-06-07 | 2019-12-12 | Sergei Afanasiev | Method for converting a reciprocating motion in a one-way continuous rotary motion and ASV clutches on this basis and also hand tools based on these ASV clutches |
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Application publication date: 20200710 |