CN105952858A - Low-noise ratchet mechanism - Google Patents
Low-noise ratchet mechanism Download PDFInfo
- Publication number
- CN105952858A CN105952858A CN201610484130.6A CN201610484130A CN105952858A CN 105952858 A CN105952858 A CN 105952858A CN 201610484130 A CN201610484130 A CN 201610484130A CN 105952858 A CN105952858 A CN 105952858A
- Authority
- CN
- China
- Prior art keywords
- ratchet
- crank
- connecting rod
- pawl
- low noise
- 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
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
- F16H—GEARING
- F16H27/00—Step-by-step mechanisms without freewheel members, e.g. Geneva drives
- F16H27/02—Step-by-step mechanisms without freewheel members, e.g. Geneva drives with at least one reciprocating or oscillating transmission member
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C9/00—Bearings for crankshafts or connecting-rods; Attachment of connecting-rods
-
- 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
- F16H27/10—Step-by-step mechanisms without freewheel members, e.g. Geneva drives for converting continuous rotation into a step-by-step rotary movement obtained by means of disengageable transmission members, combined or not combined with mechanisms according to group F16H27/06 or F16H27/08
-
- 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
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/17—Toothed wheels
-
- 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
- F16H57/00—General details of gearing
- F16H57/0006—Vibration-damping or noise reducing means specially adapted for gearings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
- Tires In General (AREA)
Abstract
The invention relates to a transmission mechanism of an agricultural machine and particularly relates to a low-noise ratchet mechanism comprising a rack, a ratchet, a pawl and a power mechanism and also comprising a crank, a connecting rod, a swing plate and a stop column, wherein a rotating shaft of the ratchet is rotatably connected to the rack; the power mechanism is connected with the crank; the free end of the crank is hinged with one end of the connecting rod, and the other end of the connecting rod is hinged with the driving end of the pawl; the pawl is hinged to the swing plate; the driven end of the pawl is matched with the ratchet; one end of the swing plate is rotatably connected to the rotating shaft of the ratchet; and the stop column is fixedly arranged at the other end of the swing plate, can support against the driving end of the pawl and is located at the side, close to the crank, of the pawl. The invention aims at providing a low-noise ratchet-pawl transmission mechanism in order to solve the problem of overhigh noise caused by taking a spring as a pawl resetting piece.
Description
Technical field
The present invention relates to the drive mechanism of agricultural machinery, be specially a kind of low noise ratchet mechanism.
Background technology
Ratchet mechanism, a kind of one-way intermittent motion mechanism being made up of ratchet and pawl.Ratchet mechanism is commonly used in various lathe and automat in the indexing of index(ing) feed or rotary table, is also commonly used on jack.In bicycle, ratchet mechanism is used for unidirectional drive, and in hand winch, ratchet mechanism is conventional in case non-return turn.Being often accompanied by noise and vibration during ratchet mechanism work, therefore its operating frequency can not be too high.
The noise of ratchet mechanism is the reset element using spring to be ratchet due to it, and ratchet slides what impact ratchet produced on ratchet.Its scope of application of the influence of noise of ratchet mechanism, such as, need ratchet mechanism low noise or noiseless when indoor use.
Summary of the invention
The present invention is to solve that use spring is excessive as ratchet pawl reset part noise, it is intended that provide the click drive mechanism of a kind of low noise.
The present invention provides the base case to be: low noise ratchet mechanism, including frame, ratchet, ratchet and actuating unit, the axis of rotation of ratchet is connected to frame, wherein, also include crank, connecting rod, rocker and stop column, actuating unit connecting crank, one end of the free end articulated linkage of crank, the drive end of the other end hinged claw of connecting rod, ratchet is articulated with rocker, the driven end of ratchet coordinates with ratchet, one end of rocker is rotationally connected with the rotating shaft of ratchet, stop column is fixed on the other end of rocker, stop column can offset with the drive end of ratchet, stop column is positioned at the ratchet side near crank.
Operation principle: actuating unit drives crank to rotate, crank rotarily drives connecting rod, connecting rod pulls ratchet, ratchet is articulated with rocker, when the ratchet that crank is close, pull bar promotes the drive end of ratchet, the driven end of ratchet near and with ratchet card and after, crank is rotated further and can promote pawl wheel, when crank is away from ratchet, connecting rod pulls the driven end of ratchet to rotate, and then ratchet offsets with stop column, connecting rod pulls ratchet and wobble plate relative to axis of rotation, and now ratchet does not offsets with ratchet while of departing from ratchet.
Compared with prior art, the advantage of this programme is: when using spring as ratchet rollback power in prior art, and ratchet can beat ratchet when disengaging ratchet under the drive of spring, and this is the main cause that click sends noise.And this programme does not offset with ratchet when ratchet departs from ratchet friction and collision also would not occur, thus noise would not be sent.
Scheme two: based on scheme preferred, the two ends of connecting rod have adapter sleeve, and the free end of crank and the drive end of ratchet are respectively provided with rotary column, and adapter sleeve is sheathed on outside rotary column.Beneficial effect: this connected mode is relatively stable articulated manner.
Scheme three: preferred for scheme two, rotary column has baffle plate.Beneficial effect: baffle plate can prevent rotary column from deviating from adapter sleeve.
Scheme four: preferred for scheme three, is coated with cushion outside stop column.Beneficial effect: can collide with stop column during ratchet reciprocally swinging, arranges cushion and on the one hand can increase the service life of ratchet and stop column, on the other hand reduce the noise that ratchet sends with stop column collision rift.
Scheme five: preferred for scheme four, ratchet driven end is coated with wearing layer.Beneficial effect: the driven end of ratchet can come in contact with ratchet and rub, arranging wearing layer increases the service life of ratchet.
Scheme six: preferred for scheme five, ratchet has hollow hole.Beneficial effect: reduce the weight of ratchet, reduces energy loss in transmittance process.
Accompanying drawing explanation
Fig. 1 is the structural representation of low noise ratchet mechanism embodiment of the present invention.
Detailed description of the invention
Below by detailed description of the invention, the present invention is further detailed explanation:
Reference in Figure of description includes: crank 1, connecting rod 2, ratchet 3, drive end 31, driven end 32, rocker 4, stop column 41, ratchet 5, hollow hole 51, frame 6.
Low noise ratchet mechanism as shown in Figure 1, including frame 6, ratchet 5, ratchet 3 and motor, the axis of rotation of ratchet 5 is connected to frame 6, wherein, also include crank 1, connecting rod 2, rocker 4 and stop column 41, motor connecting crank 1, one end of the free end articulated linkage 2 of crank 1, the drive end 31 of the other end hinged claw 3 of connecting rod 2, ratchet 3 is articulated with rocker 4, the driven end 32 of ratchet 3 coordinates with ratchet 5, one end of rocker 4 is rotationally connected with the rotating shaft of ratchet 5, stop column 41 is fixed on the other end of rocker 4, stop column 41 can offset with the drive end 31 of ratchet 3, stop column 41 is positioned at the ratchet 3 side near crank 1.The two ends of connecting rod 2 have adapter sleeve, and the free end of crank 1 and the drive end 31 of ratchet 3 are respectively provided with rotary column, and adapter sleeve is sheathed on outside rotary column.Rotary column has baffle plate.It is coated with cushion outside stop column 41.Ratchet 3 driven end 32 is coated with wearing layer.Ratchet 5 has hollow hole 51.
Using effect and each several part characteristic effect: operation principle: motor drives crank 1 to rotate, crank 1 rotarily drives connecting rod 2, connecting rod 2 pulls ratchet 3, ratchet 3 is articulated with rocker 4, when the ratchet 3 that crank 1 is close, pull bar promotes the drive end 31 of ratchet 3, the driven end 32 of ratchet 3 near and with ratchet 5 card and after, crank 1 is rotated further and ratchet 5 can be promoted to rotate, when crank 1 is away from ratchet 3, connecting rod 2 pulls the driven end 32 of ratchet 3 to rotate, then ratchet 3 offsets with stop column 41, connecting rod 2 pulls ratchet 3 and wobble plate relative to axis of rotation, now ratchet 3 does not offsets with ratchet 5 while of departing from ratchet 5.The two ends of connecting rod 2 have adapter sleeve, and the free end of crank 1 and the drive end 31 of ratchet 3 are respectively provided with rotary column, and adapter sleeve is sheathed on outside rotary column.This connected mode is relatively stable articulated manner.Rotary column has baffle plate.Baffle plate can prevent rotary column from deviating from adapter sleeve.It is coated with cushion outside stop column 41.Can collide with stop column 41 during ratchet 3 reciprocally swinging, cushion is set and on the one hand can increase the service life of ratchet 3 and stop column 41, on the other hand reduce the noise that ratchet 3 sends with stop column 41 collision rift.Ratchet 3 driven end 32 is coated with wearing layer.Beneficial effect: the driven end 32 of ratchet 3 can come in contact with ratchet 5 and rub, arranging wearing layer increases the service life of ratchet 3.Ratchet 5 has hollow hole 51.Reduce the weight of ratchet 5, reduce energy loss in transmittance process.
Claims (6)
1. low noise ratchet mechanism, including frame, ratchet, ratchet and actuating unit, the axis of rotation of described ratchet is connected to frame, it is characterized in that, also include crank, connecting rod, rocker and stop column, described actuating unit connecting crank, one end of the free end articulated linkage of described crank, the drive end of the other end hinged claw of described connecting rod, described ratchet is articulated with rocker, the driven end of described ratchet coordinates with ratchet, one end of described rocker is rotationally connected with the rotating shaft of ratchet, described stop column is fixed on the other end of rocker, described stop column can offset with the drive end of ratchet, described stop column is positioned at the ratchet side near crank.
Low noise ratchet mechanism the most according to claim 1, it is characterised in that: the two ends of described connecting rod have adapter sleeve, the free end of described crank and the drive end of ratchet and are respectively provided with rotary column, and described adapter sleeve is sheathed on outside rotary column.
Low noise ratchet mechanism the most according to claim 2, it is characterised in that: described rotary column has baffle plate.
Low noise ratchet mechanism the most according to claim 3, it is characterised in that: it is coated with cushion outside described stop column.
Low noise ratchet mechanism the most according to claim 4, it is characterised in that: described ratchet driven end is coated with wearing layer.
Low noise ratchet mechanism the most according to claim 5, it is characterised in that: described ratchet has hollow hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610484130.6A CN105952858A (en) | 2016-06-28 | 2016-06-28 | Low-noise ratchet mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610484130.6A CN105952858A (en) | 2016-06-28 | 2016-06-28 | Low-noise ratchet mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105952858A true CN105952858A (en) | 2016-09-21 |
Family
ID=56904142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610484130.6A Pending CN105952858A (en) | 2016-06-28 | 2016-06-28 | Low-noise ratchet mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105952858A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106337919A (en) * | 2016-11-15 | 2017-01-18 | 马应龙药业集团股份有限公司 | Intermittent transmission device |
| CN111043187A (en) * | 2019-12-02 | 2020-04-21 | 中国科学院光电技术研究所 | Shafting locking device |
| CN113562404A (en) * | 2021-07-19 | 2021-10-29 | 江西赣电电气有限公司 | Stepping type feeding mechanism |
| CN114014128A (en) * | 2021-11-26 | 2022-02-08 | 江苏谦益实业有限公司 | Elevator locking strutting arrangement |
-
2016
- 2016-06-28 CN CN201610484130.6A patent/CN105952858A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106337919A (en) * | 2016-11-15 | 2017-01-18 | 马应龙药业集团股份有限公司 | Intermittent transmission device |
| CN106337919B (en) * | 2016-11-15 | 2018-09-25 | 马应龙药业集团股份有限公司 | A kind of intermittent transmission device |
| CN111043187A (en) * | 2019-12-02 | 2020-04-21 | 中国科学院光电技术研究所 | Shafting locking device |
| CN111043187B (en) * | 2019-12-02 | 2021-05-14 | 中国科学院光电技术研究所 | Shafting locking device |
| CN113562404A (en) * | 2021-07-19 | 2021-10-29 | 江西赣电电气有限公司 | Stepping type feeding mechanism |
| CN114014128A (en) * | 2021-11-26 | 2022-02-08 | 江苏谦益实业有限公司 | Elevator locking strutting arrangement |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105952858A (en) | Low-noise ratchet mechanism | |
| JP2008023653A5 (en) | ||
| CN215036432U (en) | Polishing device for processing coupler | |
| CN105927721A (en) | Noiseless ratchet mechanism | |
| CN204450159U (en) | The waxing mechanism of stainless steel tableware automatic polishing machine | |
| CN106964973A (en) | Screwed lock pays mechanism and filature | |
| CN108891897A (en) | Stop gauge for upper table surface assembly pipeline | |
| CN204662083U (en) | The spiral arrangement of clutch of a kind of washing machine | |
| CN205780673U (en) | Noiselessness ratchet mechanism | |
| CN106402311A (en) | Silent ratchet mechanism | |
| CN205780675U (en) | Low noise ratchet mechanism | |
| CN201821205U (en) | Swinging power tool | |
| CN205780674U (en) | Quiet ratchet mechanism | |
| CN106195186A (en) | Novel cell wheel construction | |
| CN203640409U (en) | Buffering lockset structure | |
| CN201052512Y (en) | Bucket brushing machine for closed-mouth bucket | |
| CN211496002U (en) | Reciprocating type vacuum material taking and feeding mechanism | |
| CN203847594U (en) | Unidirectional transmission mechanism for foot-operated rotary mop | |
| CN107774810A (en) | A kind of rotary riveting device | |
| CN217890611U (en) | Guide rail swinging structure of polishing equipment | |
| CN213616049U (en) | Polishing mechanism for main shaft of polishing machine | |
| CN105433884A (en) | Modularized differential transmission device of rotating mop | |
| CN215561112U (en) | Single-motor thread trimming and presser foot lifting mechanism of sewing machine | |
| CN108443493A (en) | A kind of new-energy automobile halting mechanism | |
| CN208446714U (en) | A kind of driving regulating mechanism for beating on button machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160921 |