CN201648663U - Picking motion of non-circular gear planetary gear train of rapier loom - Google Patents
Picking motion of non-circular gear planetary gear train of rapier loom Download PDFInfo
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- CN201648663U CN201648663U CN2010201684373U CN201020168437U CN201648663U CN 201648663 U CN201648663 U CN 201648663U CN 2010201684373 U CN2010201684373 U CN 2010201684373U CN 201020168437 U CN201020168437 U CN 201020168437U CN 201648663 U CN201648663 U CN 201648663U
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- 230000033001 locomotion Effects 0.000 title claims abstract description 18
- 238000003780 insertion Methods 0.000 claims abstract description 32
- 230000037431 insertion Effects 0.000 claims abstract description 30
- 230000007246 mechanism Effects 0.000 claims description 20
- 230000003068 static effect Effects 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 abstract description 10
- 230000001133 acceleration Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000009941 weaving Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
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Abstract
The utility model discloses a picking motion of a non-circular gear planetary gear train of a rapier loom. A planet carrier is driven by a spindle of a loom; and a driving non-circular sun gear is kinked on a driven non-circular sun gear shaft and holds still. A planet shaft is driven by the planet carrier and fixed with two non-circular gears, wherein one non-circular gear is engaged with the driving non-circular sun gear and the other one is engaged with a driven non-circular sun gear. The power is output by the driven non-circular sun gear, and transmits the movement and the power of the spindle of the loom to the rapier head through the transmission of a cylindrical gear, the transmission of a bevel gear and the engagement of a rapier wheel and a rapier belt. The non-circular gear planetary gear, the cylindrical gear and the bevel gear transform the uniform rotation of the spindle of the loom into the non-uniform reciprocating motion of the rapier head. The transmission ratio function of the non-circular gear is optimized to cause the accelerated speed law of the rapier head to be 'isosceles trapezoid', and thus, the weft tension is reduced. The relay wefting insertion is realized by causing the starting phase angle of the planet carrier in the picking motion symmetrically arranged on the left and right sides of the rapier loom to be different.
Description
Technical field
The utility model relates to the loom weft insertion device, is specifically related to a kind of rapier loom noncircular gear planetary gear train weft insertion mechanism.
Background technology
The effect of weft insertion device is the non-straight reciprocating motion at the uniform velocity clocklike that the uniform speed rotation of loom main shaft is converted into the sword head.At present, the Weft insertion mechanism of rapier loom of selling on the market mainly contains at home: the conjugate cam weft insertion device, and the type mechanism is easy to satisfy the characteristics of motion of wefting insertion requirement, but the cam profile requirement on machining accuracy is quite high, as exist error just to produce to impact, on the contrary can not high speed operation; Variable-pitch auger transmission weft insertion device, the secondary processing difficulties of the variable-pitch auger of the type mechanism; Plane six connecting rods send latitude, four link rob latitude mechanisms, can conveniently realize " relay " wefting insertion, but its motion of weft-insertion rule design flexibility is not as the conjugate cam weft insertion device; The space four-links weft insertion device, its motion of weft-insertion rule design flexibility send latitude, four link rob latitude mechanisms not as plane six connecting rods.
Summary of the invention
The purpose of this utility model is to provide a kind of rapier loom noncircular gear planetary gear train weft insertion mechanism, and this mechanism can satisfy the weaving process requirement, realizes class " isosceles trapezoid " the acceleration straight reciprocating motion rule and the requirement of " relay " wefting insertion of sword head; This mechanism driving chain is short simultaneously, compact conformation.
In order to achieve the above object, the technical solution adopted in the utility model is:
It is the non-at the uniform velocity reciprocating motion that mechanism, cylindrical gear mechanism and bevel gears are transformed into the uniform rotation of loom main shaft on the sword head that the utility model adopts noncircular planetary gear.
Planet carrier is driven by loom main shaft, initiatively non-round central gear kink is on driven non-round central gear shaft, initiatively non-round central gear maintains static, the planet axis that is positioned at the planet carrier both sides is driven by planet carrier, be consolidated with driven non-circular planetary gear and active non-circular planetary gear on two planet axis respectively, initiatively non-round central gear and two driven non-circular planetary gear engagements, driven non-round central gear and two non-round planetary gear engagements of active, be fixed with the big column gear on the driven non-round central gear shaft, big column gear and the small cylinder gear engagement that is contained in small cylinder gear axle one end, the other end of small cylinder gear axle is fixed with large conical gear, large conical gear and the small conical gear engagement that is contained in small conical gear axle one end, the other end of small conical gear axle is equipped with the sword wheel, by of the engagement of sword wheel, realize the straight reciprocating motion of the predetermined rule of sword head with sword belt.
Described loom main shaft and driven non-round central gear shaft conllinear, initiatively non-round central gear equates with the centre-to-centre spacing of driven non-round central gear with the centre-to-centre spacing and the active non-circular planetary gear of driven non-circular planetary gear.
The weft insertion device symmetric arrangement of loom the right and left, wherein the starting phase angle of the planet carrier of two weft insertion devices differs 10-13 °, and a side that promptly connects latitude is gone ahead of the rest 10-13 °.
The beneficial effect that the utlity model has is:
The weft insertion device symmetric arrangement of Rapier looms both sides, wherein there is initial phase difference in the planet carrier of two weft insertion devices, can realize " relay wefting insertion ", and the weft tension when reducing the handing-over latitude changes; This mechanism can satisfy the weaving process requirement of loom, finish the wefting insertion action, and can be by setting up the kinematics Mathematical Modeling of non-circular gear transmission, the initial position that selection mechanism is suitable, design desirable non-circular gear pitch curve, realize class " isosceles trapezoid " acceleration law of sword head; Sun gear periphery symmetry has two cover planetary gears, and robust motion is good, and this mechanism driving chain is short simultaneously, compact conformation.
Description of drawings
Fig. 1 is that the Rapier looms noncircular planetary gear is the weft insertion device principle schematic.
Fig. 2 is a first order non-circular gear pitch curve.
Fig. 3 is a second level non-circular gear pitch curve.
Fig. 4 is a first order non-circular gear outline line.
Fig. 5 is a second level non-circular gear outline line.
Among the figure: 1, planet carrier, 2, loom main shaft, 3, non-round central gear initiatively, 4, driven non-round central gear shaft, 5, planet axis, 6, driven non-circular planetary gear, 7, non-circular planetary gear initiatively, 8, driven non-round central gear, 9, the big column gear, 10, small cylinder gear, 11, small cylinder gear axle, 12, large conical gear, 13, small conical gear, 14, small conical gear axle, 15, sword wheel.
The specific embodiment
Be described further of the present utility model below in conjunction with drawings and Examples.
As shown in Figure 1, planet carrier 1 of the present utility model is driven by loom main shaft 2, initiatively non-round central gear 3 kinks are on driven non-round central gear shaft 4, initiatively non-round central gear 3 maintains static, the planet axis 5 that is positioned at planet carrier 1 both sides is driven by planet carrier 1, be consolidated with driven non-circular planetary gear 6 and active non-circular planetary gear 7 on two planet axis 5 respectively, initiatively non-round central gear 3 and two driven non-circular planetary gear 6 engagements, driven non-round central gear 8 and two non-round planetary gear 7 engagements of active, be fixed with big column gear 9 on the driven non-round central gear shaft 4, big column gear 9 and small cylinder gear 10 engagements that are contained in small cylinder gear axle 11 1 ends, the other end of small cylinder gear axle 11 is fixed with large conical gear 12, large conical gear 12 and small conical gear 13 engagements that are contained in small conical gear axle 14 1 ends, the other end of small conical gear axle 14 is equipped with sword wheel 15, by of the engagement of sword wheel 15, realize the straight reciprocating motion of the predetermined rule of sword head with sword belt.
Described loom main shaft 2 and driven non-round central gear shaft 4 conllinear, initiatively non-round central gear 3 equates with the centre-to-centre spacing of driven non-round central gear 8 with the centre-to-centre spacing and the active non-circular planetary gear 7 of driven non-circular planetary gear 6.
The weft insertion device symmetric arrangement of loom the right and left, wherein the starting phase angle of the planet carrier 1 of two weft insertion devices differs 10-13 °, and a side that promptly connects latitude is gone ahead of the rest 10-13 °, realizes " relay " wefting insertion.
Sun gear periphery symmetry has two cover planetary gears, and robust motion is good.
Fig. 2 and Fig. 4 are the pitch curve and the flank profil of first order non-circular gear transmission, and Fig. 3 and Fig. 5 are the pitch curve and the flank profil of second level non-circular gear transmission.
Operation principle of the present utility model is as follows:
During the utility model work, initiatively non-round sun gear 3 maintains static, loom main shaft 2 uniform rotation, drive planet carrier 1 uniform rotation, planet carrier 1 and planet axis 5 are hinged, be consolidated with driven non-circular planetary gear 6 and active non-circular planetary gear 7 on the planet axis 5, initiatively the engagement of non-round central gear 3 and driven non-circular planetary gear 6 realizes the non-at the uniform velocity ratio transmissions of the first order, engagement through active non-circular planetary gear 7 and driven non-round central gear 8 realizes that the second level is non-at the uniform velocity than transmission again, the uniform rotation of loom main shaft 2 is changed into the reciprocal non-at the uniform velocity swing of driven non-round central gear shaft 4.Through the transmission of roller gear 9 and 10, bevel gear 12 and 13, sword wheel 15 and sword belt, the uniform rotation of loom main shaft 2 is transformed into the non-at the uniform velocity linear reciprocating motion of sword head the most at last again, and its acceleration law is " a class isosceles trapezoid ".Central gear periphery symmetry has two cover planetary gears, and robust motion is good
What latitude mechanism and the right were sent in the loom left side connects latitude mechanism symmetric arrangement, drive path is the same with operation principle, but the connection of their planet carrier and loom main shaft (key or spline) angle is inconsistent, the angle that connects latitude is than the hysteresis 10-13 that send latitude °, thereby realize " relay " wefting insertion, the weft tension when joining latitude to reduce changes.
The above-mentioned specific embodiment is used for the utility model of explaining; rather than the utility model limited; in the protection domain of spirit of the present utility model and claim, any modification and change to the utility model is made all fall into protection domain of the present utility model.
Claims (3)
1. rapier loom noncircular gear planetary gear train weft insertion mechanism, it is characterized in that: planet carrier (1) is driven by loom main shaft (2), initiatively non-round central gear (3) kink is on driven non-round central gear shaft (4), initiatively non-round central gear (3) maintains static, the planet axis (5) that is positioned at planet carrier (1) both sides is driven by planet carrier (1), be consolidated with driven non-circular planetary gear (6) and active non-circular planetary gear (7) on two planet axis (5) respectively, initiatively non-round central gear (3) and two driven non-circular planetary gears (6) engagement, driven non-round central gear (8) and two non-round planetary gears of active (7) engagement, be fixed with big column gear (9) on the driven non-round central gear shaft (4), big column gear (9) and be contained in small cylinder gear (10) engagement of small cylinder gear axle (11) one ends, the other end of small cylinder gear axle (11) is fixed with large conical gear (12), large conical gear (12) and be contained in small conical gear (13) engagement of small conical gear axle (14) one ends, the other end of small conical gear axle (14) is equipped with sword wheel (15), by the engagement of sword wheel (15), realize the straight reciprocating motion of the predetermined rule of sword head with sword belt.
2. a kind of rapier loom noncircular gear planetary gear train weft insertion mechanism according to claim 1, it is characterized in that: described loom main shaft (2) and driven non-round central gear shaft (4) conllinear, initiatively non-round central gear (3) equates with the centre-to-centre spacing of driven non-round central gear (8) with the centre-to-centre spacing and the active non-circular planetary gear (7) of driven non-circular planetary gear (6).
3. a kind of rapier loom noncircular gear planetary gear train weft insertion mechanism according to claim 1, it is characterized in that: the weft insertion device symmetric arrangement of loom the right and left, wherein the starting phase angle of the planet carrier of two weft insertion devices (1) differs 10-13 °, and a side that promptly connects latitude is gone ahead of the rest 10-13 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201684373U CN201648663U (en) | 2010-04-23 | 2010-04-23 | Picking motion of non-circular gear planetary gear train of rapier loom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201684373U CN201648663U (en) | 2010-04-23 | 2010-04-23 | Picking motion of non-circular gear planetary gear train of rapier loom |
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| CN201648663U true CN201648663U (en) | 2010-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010201684373U Expired - Lifetime CN201648663U (en) | 2010-04-23 | 2010-04-23 | Picking motion of non-circular gear planetary gear train of rapier loom |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101824696A (en) * | 2010-04-23 | 2010-09-08 | 浙江理工大学 | Rapier loom noncircular gear planetary gear train weft insertion mechanism |
| CN102443948A (en) * | 2011-09-26 | 2012-05-09 | 江苏万工科技集团有限公司 | Double-gear connecting rod beating mechanism |
-
2010
- 2010-04-23 CN CN2010201684373U patent/CN201648663U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101824696A (en) * | 2010-04-23 | 2010-09-08 | 浙江理工大学 | Rapier loom noncircular gear planetary gear train weft insertion mechanism |
| CN101824696B (en) * | 2010-04-23 | 2011-09-07 | 浙江理工大学 | Rapier loom noncircular gear planetary gear train weft insertion mechanism |
| CN102443948A (en) * | 2011-09-26 | 2012-05-09 | 江苏万工科技集团有限公司 | Double-gear connecting rod beating mechanism |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20101124 Effective date of abandoning: 20110907 |