CN202228621U - Non-uniform intermittent drive gear mechanism - Google Patents
Non-uniform intermittent drive gear mechanism Download PDFInfo
- Publication number
- CN202228621U CN202228621U CN2011203432969U CN201120343296U CN202228621U CN 202228621 U CN202228621 U CN 202228621U CN 2011203432969 U CN2011203432969 U CN 2011203432969U CN 201120343296 U CN201120343296 U CN 201120343296U CN 202228621 U CN202228621 U CN 202228621U
- Authority
- CN
- China
- Prior art keywords
- gear
- driven gear
- locking arc
- incomplete
- noncircular
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses a non-uniform intermittent drive gear mechanism. A convex locking arc is coaxially and fixedly connected with an incomplete non-circular gear; a concave locking arc is coaxially and fixedly connected with a driven gear; the pitch curve of the incomplete non-circular gear is commonly determined by the driven gear conjugated with the incomplete non-circular gear and a central angle Beta corresponding to the toothed part of the incomplete non-circular gear; and the pitch curve length of the toothed part of the incomplete non-circular gear is the same with the pitch curve perimeter of the driven gear. When the incomplete non-circular gear uniformly rotates, the driven gear moves non-uniformly; when the incomplete non-circular gear rotates to a toothless part, the convex locking arc is matched with the concave locking arc, and the driven gear does not rotate. When the incomplete non-circular gear is meshed with the driven gear again, the convex locking arc breaks away from the concave locking arc, and the driven gear rotates non-uniformly, so that non-uniform intermittent drive is realized by the driven gear. The non-uniform intermittent drive gear mechanism can be applied to the general non-uniform intermittent mechanism.
Description
Technical field
The utility model relates to a kind of farm machinery, especially relates to a kind of non-at the uniform velocity intermittently-driving gear mechanism.
Background technique
At present, the gear mechanism of also not realizing non-at the uniform velocity intermittently-driving both domestic and external by two meshed transmission gear.Have at present a kind of be the gear mechanism of the non-uniform movement intermittently-driving that realizes through four gears.This mechanism realizes at the uniform velocity intermittent movement by incomplete Knucle-gear and Knucle-gear, and engagement realizes non-at the uniform velocity transmission between the noncircular gear, superposes these two kinds of transmissions then and has just realized intermittently non-at the uniform velocity transmission.This mechanism structure is complicated, and gear is many.Also have other some non-at the uniform velocity intermittently-drivings at present; Be based on electronic equipment and sensor and realize non-at the uniform velocity intermittently-driving; Not too be fit to open-air bad working environment,, just can realize non-at the uniform velocity intermittently-driving so develop a kind of novel non-at the uniform velocity intermittent gear driving mechanism.
Summary of the invention
The purpose of the utility model provides a kind of non-at the uniform velocity intermittently-driving gear mechanism, and this mechanism has only two gears, and structure is simple relatively, vibrates also for a short time, just can realize non-at the uniform velocity intermittently-driving.
In order to achieve the above object, the technological scheme of the utility model employing is:
The utility model comprises incomplete noncircular gear, driven gear, protruding locking arc and recessed locking arc; Protruding locking arc is with not exclusively noncircular gear is coaxial affixed, and recessed locking arc is coaxial affixed with driven gear; Not exclusively the pitch curve of noncircular gear is by the driven gear and the incomplete noncircular gear of conjugation have the pairing central angle β size of toothed portion to confirm that jointly not exclusively noncircular gear has the pitch curve length of toothed portion to equate with the pitch curve girth of driven gear with it.
Described driven gear is an elliptic gear, eccentricity gear, sex change elliptic gear, Bath main officer of Tibet helical line gear, the common noncircular gear of perhaps protruding sealing pitch curve.
Described incomplete noncircular gear has toothed portion and driven gear engagement to realize the non-at the uniform velocity transmission of this mechanism; When cooperating with recessed locking arc, realizes protruding locking arc the intermittent movement of this mechanism.
The beneficial effect that the utlity model has is:
When incomplete noncircular gear during as input link, promptly when incomplete noncircular gear uniform rotation, the driven tooth crop rotation non-uniform movement that is engaged with; When incomplete noncircular gear forwarded no toothed portion to, two gears broke away from engagement, and this moment, protruding locking arc and recessed locking arc matched; The locking driven gear, promptly driven gear does not rotate, and not exclusively noncircular gear continuation uniform rotation this moment; When incomplete noncircular gear meshes with driven gear once more; Protruding locking arc and recessed locking arc break away from, and driven gear is realized non-uniform rotation again, make driven gear realize non-at the uniform velocity intermittently-driving.This mechanism's working efficiency is higher, simple in structure, and volume is little, and is in light weight, vibrate little, low cost of manufacture.This cover mechanism is rotary gear transmission structure, can reach than higher speed, and this mechanism applies to non-equal speed mechanism at general intermittence, and like vegetables and paddy rice, caves such as rape dish seedling seedling picking mechanism can realize well getting the seedling effect, has higher using value.
Description of drawings
Fig. 1 is the mechanism principle schematic representation of the utility model.
Fig. 2 is this mechanism three-dimensional modeling front schematic view.
Fig. 3 is that the three-dimensional modeling of Fig. 2 turns over 45 ° of visual angle schematic representation around the X axle.
Fig. 4 is that the three-dimensional modeling of Fig. 2 turns over 135 ° of visual angle schematic representation around the X axle.
Fig. 5 is that the velocity ratio of the utility model changes schematic representation.
Among the figure: 1. incomplete noncircular gear, 2. protruding locking arc, 3. recessed locking arc, 4. driven gear,
Incomplete noncircular gear rotating speed,
The driven gear rotating speed, the incomplete non-circle of β has the pairing central angle of toothed portion, L centre distance, the non-at the uniform velocity transmission stage of I., second cycle that first cycle that II. interval of rest, III. planet carrier turn over, IV. planet carrier turn over,
iVelocity ratio,
Incomplete non-circle radius,
The follower radius,
The angle that incomplete non-circle turns over,
The angle that follower turns over.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Like Fig. 1, shown in Figure 2, the utility model comprises incomplete noncircular gear 1, driven gear 4, protruding locking arc 2 and recessed locking arc 3; Protruding locking arc 2 is with not exclusively noncircular gear 1 is coaxial affixed, and recessed locking arc 3 is coaxial affixed with driven gear 4; Not exclusively the pitch curve of noncircular gear 1 is by the driven gear 4 and the incomplete noncircular gear 1 of conjugation have the pairing central angle β size of toothed portion to confirm that jointly not exclusively noncircular gear 1 has the pitch curve length of toothed portion to equate with the pitch curve girth of driven gear 4 with it.
Described driven gear 4 is an elliptic gear, eccentricity gear, sex change elliptic gear, Bath main officer of Tibet helical line gear, the common noncircular gear of perhaps protruding sealing pitch curve.
Described incomplete noncircular gear 1 has toothed portion and driven gear 4 engagements to realize the non-at the uniform velocity transmission of this mechanism; When cooperating with recessed locking arc 3, realizes protruding locking arc 2 intermittent movement of this mechanism.
As shown in Figure 4, this figure is the velocity ratio schematic representation of this mechanism, and the I interval is this mechanism's non-uniform movement stage, i.e. in the variable ratio stage, the II interval is this mechanism's stable drive ratio stage, and at this moment, noncircular gear 4 does not move, and incomplete non-circle 1 continues uniform motion.The III interval is the velocity ratio figure that this mechanism circles, the i.e. velocity ratio of period 1
iSchematic representation, IV interval are this mechanism velocity ratios of second round
iSchematic representation.
Fig. 3 is that the three-dimensional modeling of Fig. 2 turns over 45 ° of visual angle schematic representation around the X axle.
Fig. 4 is that the three-dimensional modeling of Fig. 2 turns over 225 ° of visual angle schematic representation around the X axle.，
The working principle of the utility model is:
Like Fig. 1, shown in Figure 2, not exclusively noncircular gear 1 uniform rotation, the driven gear 4 that is engaged with is done non-uniform rotation; When incomplete noncircular gear 1 forwarded no toothed portion to, two gears broke away from engagement, and this moment, protruding locking arc 2 matched with recessed locking arc 3; Locking driven gear 4, promptly driven gear 4 does not rotate, and not exclusively noncircular gear 1 continuation uniform rotation this moment; When incomplete noncircular gear 1 meshes with driven gear 4 once more; Protruding locking arc 2 breaks away from recessed locking arc 3, and driven gear 4 is realized non-uniform rotation again, makes driven gear 4 realize non-at the uniform velocity intermittently-driving.
Centre distance L and incomplete non-circular gear pitch curve equation
ask method:
Known: not exclusively noncircular gear has the pitch curve equation
of pairing central angle β of toothed portion pitch curve and follower.
There is the pitch curve length of toothed portion (being the pairing part in β angle) to equate according to noncircular gear, promptly with follower pitch curve girth
（1）
When the size of given β value and the pitch curve equation of follower
, utilize numerical integration method can try to achieve centre distance L and driving wheel pitch curve equation
.
When driving wheel uniform rotation
; The angle that driven pulley turns over is
; The arc length that is turned over according to two gears equates
In formula (2);
is known variables (
), utilizes that numerical integration method can be tried to achieve
(
).
After trying to achieve
by formula (2); By known follower pitch curve equation
, can try to achieve corresponding radius vector
value.
The radius vector
of incomplete noncircular gear:
Formula (3) is the pitch curve equation of incomplete noncircular gear, and A is that driving wheel does not have the pairing radius of toothed portion central angle in the formula, and the confirming of radii size do not interfered with follower when driving wheel turns over self no toothed portion as long as guarantee.
Above-mentioned embodiment is used for the utility model of explaining; Rather than the utility model limited; In the protection domain of the spirit of the utility model and claim,, all fall into the protection domain of the utility model to any modification and the change that the utility model is made.
Claims (3)
1. a non-at the uniform velocity intermittently-driving gear mechanism is characterized in that: comprise incomplete noncircular gear (1), driven gear (4), protruding locking arc (2) and recessed locking arc (3); Protruding locking arc (2) is with not exclusively noncircular gear (1) is coaxial affixed, and recessed locking arc (3) is coaxial affixed with driven gear (4); Not exclusively the pitch curve of noncircular gear (1) is by driven gear of conjugation (4) and incomplete noncircular gear (1) have the pairing central angle β size of toothed portion to confirm that jointly not exclusively noncircular gear (1) has the pitch curve length of toothed portion to equate with the pitch curve girth of driven gear (4) with it.
2. a kind of non-at the uniform velocity intermittently-driving gear mechanism according to claim 1, it is characterized in that: described driven gear (4) is an elliptic gear, eccentricity gear, sex change elliptic gear, Bath main officer of Tibet helical line gear, the common noncircular gear of perhaps protruding sealing pitch curve.
3. a kind of non-at the uniform velocity intermittently-driving gear mechanism according to claim 1 is characterized in that: described incomplete noncircular gear (1) has toothed portion and driven gear (4) engagement to realize the non-at the uniform velocity transmission of this mechanism; Protruding locking arc (2) is realized the intermittent movement of this mechanism with recessed locking arc (3) when cooperating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203432969U CN202228621U (en) | 2011-09-14 | 2011-09-14 | Non-uniform intermittent drive gear mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203432969U CN202228621U (en) | 2011-09-14 | 2011-09-14 | Non-uniform intermittent drive gear mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202228621U true CN202228621U (en) | 2012-05-23 |
Family
ID=46079208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203432969U Expired - Fee Related CN202228621U (en) | 2011-09-14 | 2011-09-14 | Non-uniform intermittent drive gear mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202228621U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434643A (en) * | 2011-09-14 | 2012-05-02 | 浙江理工大学 | Non-uniform-speed intermittent drive gear mechanism |
| CN103535143A (en) * | 2013-10-16 | 2014-01-29 | 安徽农业大学 | Gear-rack type box moving mechanism for high-speed rice planter |
| CN107339391A (en) * | 2017-07-10 | 2017-11-10 | 湖南农业大学 | A kind of stroke adjustable intermittent formula reciprocating mechanism |
-
2011
- 2011-09-14 CN CN2011203432969U patent/CN202228621U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434643A (en) * | 2011-09-14 | 2012-05-02 | 浙江理工大学 | Non-uniform-speed intermittent drive gear mechanism |
| CN103535143A (en) * | 2013-10-16 | 2014-01-29 | 安徽农业大学 | Gear-rack type box moving mechanism for high-speed rice planter |
| CN107339391A (en) * | 2017-07-10 | 2017-11-10 | 湖南农业大学 | A kind of stroke adjustable intermittent formula reciprocating mechanism |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202889926U (en) | Rice pot seedling transplanting mechanism of ellipse-incompletely non-circular gear planetary gear train | |
| CN202873313U (en) | Eccentric circular-noncircular gear planetary gear train rice pot seedling transplanting mechanism | |
| CN202228621U (en) | Non-uniform intermittent drive gear mechanism | |
| CN205534041U (en) | Two -stage harmonic planetary gear reducer | |
| CN203051663U (en) | Incomplete gear mechanism of mechanical arm | |
| CN102434643A (en) | Non-uniform-speed intermittent drive gear mechanism | |
| CN103026843A (en) | Variable speed continuous box moving mechanism for transplanting pot seedlings | |
| CN205534042U (en) | Closed harmonic planetary gear reducer | |
| WO2011062368A3 (en) | Driving body acceleration device using elasticity | |
| CN205503875U (en) | Speed reducer | |
| CN102907201B (en) | Elliptical-incomplete non-circular gear planetary gear train rice pot seedling transplanting mechanism | |
| CN209251046U (en) | Long arc second order non-circular gear planetary gear system transplanting mechanism | |
| CN104633062A (en) | Double-cycloidal speed reducer | |
| CN201403309Y (en) | Separating-planting mechanism capable of eliminating backlash for non-circular gear transmission train | |
| CN205902678U (en) | Electronic fishing line reel | |
| CN203993906U (en) | Medium-sized load industrial robot wrist drive mechanism | |
| CN102124848A (en) | Eccentric-noncircular gears drive separating-planting mechanism with staggered planetary wheel axles | |
| CN109424700A (en) | A kind of double star wheel reducers | |
| CN104121336A (en) | Three-star-wheel planetary speed reducer | |
| CN102242794A (en) | Oblique angle harmonic decelerator | |
| CN201976429U (en) | Eccentric and non-circular gear transmission transplanting mechanism with staggered planetary axles | |
| CN202108943U (en) | Skew angle harmonic speed reducer | |
| CN101328959A (en) | Stepless automatic transmission and differential gear transmission system using the same | |
| CN103999611A (en) | Planetary system transplanting mechanism | |
| CN109185413B (en) | Asymmetric transmission ratio second-order non-circular gear planetary gear train transplanting mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120523 Termination date: 20140914 |
|
| EXPY | Termination of patent right or utility model |