CN2900929Y - Novel planet conical disc stepless speed variator - Google Patents
Novel planet conical disc stepless speed variator Download PDFInfo
- Publication number
- CN2900929Y CN2900929Y CN 200420058065 CN200420058065U CN2900929Y CN 2900929 Y CN2900929 Y CN 2900929Y CN 200420058065 CN200420058065 CN 200420058065 CN 200420058065 U CN200420058065 U CN 200420058065U CN 2900929 Y CN2900929 Y CN 2900929Y
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- China
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- sun gear
- permanent
- wheel
- planetary bevel
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- Friction Gearing (AREA)
Abstract
A novel bevel planet progressive gear solves the drawbacks of high slide rate and heating in the prior bevel planet progressive gear. The utility model comprises an inlet axis, an output shaft, a bevel planet, a sun wheel, a permanent wheel, a plate spring and a speed-adjusting gear, characterized in that the bevel planet bus wire is an arc and the bevel planet connected with the sun wheel and the permanent wheel is designed in concave-convex point contacting type. The utility model employs the priority selection of the relative design value as the arc radius and the sun wheel and the permanent working radius or the like, thereby, low sliding rate outlet is realized. Lower sliding rate can be kept without the reduction of bearing capacity at a low outlet rotating speed; the theoretical analysis shows that the novel bevel planet progressive gear constant energy can be reduced by 30-50% compared to the same type gear in the speed governing range. Meanwhile the gear employs the concave-convex co-melody contact arc for reducing contact stress and promoting lubricant film forming, thereby, the abrasion can be reduced and the service life can be longer.
Description
Technical field:
The utility model relates to a kind of permanent power-type planetary friction formula mechanical stepless transmission, especially relates to the improvement to awl dish and dependency structure.
Background technique:
The disclosed novel constant-power planet friction type stepless speed changer of Chinese patent ZL98220687.9, this stepless speed variator dish spring that will pressurize presses on the permanent wheel, makes that the dish spring loosens when high speed, disc spring pressing during low speed, thereby permanent power output is become possibility; Its planetary bevel-type is that bus is the conical disc of straight line, and its folding wedge angle is generally 6～12 °, and planetary bevel-type is generally line and contacts with kinetic friction wheel (sun gear), permanent wheel (deciding friction wheel) contacting point.Because the characteristic of dish spring itself, this stepless speed variator is the sliding ratio instability in its speed adjustable range, although output torque is more much bigger than the allowable value of the JB/T6950-93 novel planetary awl dish stepless speed variator of same model during low speed output, but because be the line contact, sliding ratio is big, heating is also more serious, thereby has limited its industrialization.The bus of the planetary bevel-type of common novel planetary awl dish stepless speed variator is a straight line, and its folding wedge angle is less, and the contact during transmission is the line contact, and sliding ratio is bigger, and it is more serious to generate heat.Though can reduce sliding ratio to a certain extent by factors such as the intensity that improves material, the precision that improves friction element, reduction surface roughness and raising quality of lubrication oil, required cost can significantly improve, and is difficult to realize and promote.
The model utility content:
The purpose of this utility model is to overcome above-mentioned defective, provide a kind of rational in infrastructure, cost is low, sliding ratio is lower, output characteristics is novel planetary awl dish stepless speed variator preferably.
The technical solution of the utility model is as follows: it comprises the input and output axle, planetary bevel-type, sun gear, permanent wheel, dish spring and speed regulating mechanism, sun gear (2) and (3) are connected on the input shaft (4), worm screw on the speed regulating mechanism (5) is connected on the support by bearing, worm gear on the speed regulating mechanism (5) by Bearing Installation on input shaft (4), speed adjustment screw on the speed regulating mechanism (5) is connected on the input shaft (4), it contacts with sun gear (3) by bearing, planetary bevel-type (9) is connected on the output shaft (1) by slide block, permanent wheel (8) and stage clip lid tighten together by stay bolt and are installed in then on the input shaft (4), permanent wheel (7) is enclosed between permanent wheel (8) and the stage clip lid, dish spring (6) is contained between permanent wheel (8) and the stage clip lid, it is characterized in that: the bus of planetary bevel-type is circular arc, and sun gear is designed to the shape that concavo-convex bent altogether point contacts with the permanent wheel and the contacting point of planetary bevel-type.
The utility model is by dependency structure parameters such as optimized choice radius of arc and sun gear, the permanent wheel radius of clean-up, can realize that low sliding ratio exports, and is implemented in when especially hanging down output speed under the situation that bearing capacity do not reduce still can keep lower sliding ratio.Theory analysis shows: permanent power novel planetary awl dish stepless speed variator more of the same type can reduce by 30～50% in speed adjustable range.Adopt concavo-convex altogether bent circular arc contact simultaneously, the formation that helps reducing contact stress and promote lubricant film, and then can reduce wear, improve the life-span.Can increase the sliding ratio when reducing low speed when the angle of wedge changed little and low speed when the awl dish of the utility model structure can make high speed.In addition, sun gear, permanent wheel are designed to concavo-convex bent altogether point with the planetary bevel-type contacting point and contact, and reduce sliding ratio thereby also help reducing contact length.The utility model has obvious reduction than straight edge line line contact novel planetary awl dish stepless speed variator on sliding ratio under the constant substantially situation of dish spring pressure.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the planetary bevel-type structural drawing after improving.
Label declaration: output shaft 1, sun gear 2 and 3, input shaft 4, speed regulating mechanism 5, dish spring 6, permanent wheel 7 and 8, planetary bevel-type 9.
Embodiment:
Shown in Fig. 1-2, the utility model comprises output shaft 1, sun gear 2 and 3, input shaft 4, speed regulating mechanism 5, dish spring 6, permanent wheel 7 and 8 and planetary bevel-type 9, this drive speed regulating device is by output shaft 1, input shaft 4, speed regulating mechanism 5, pressurization device (comprising dish spring 6 etc.) is formed, sun gear 2 and 3 is connected on the input shaft 4, worm screw on the speed regulating mechanism 5 is connected on the support by bearing, worm gear on the speed regulating mechanism 5 by Bearing Installation on input shaft 4, speed adjustment screw on the speed regulating mechanism 5 is connected on the input shaft 4, it contacts with sun gear 3 by bearing, planetary bevel-type 9 is connected on the output shaft 1 by slide block, permanent wheel 8 and stage clip lid tighten together by stay bolt and are installed in then on the input shaft 4, permanent wheel 7 is installed between permanent wheel 8 and the stage clip lid, dish spring 6 is contained between permanent wheel 8 and the stage clip lid, it is characterized in that: the bus of planetary bevel-type 9 is circular arc, and sun gear 2,3 and permanent wheel 7,8 are designed to concavo-convex song altogether with the contacting point of planetary bevel-type 9 puts the shape that contacts.
Fig. 1 working principle: the input shaft 4 and the motor of planetary bevel-type stepless speed variator link, and power is imported thus, passes to planetary bevel-type 9 through sun gear.Planetary bevel-type 9 also is pressed on therebetween with sun gear 3 by the sun gear 2 of outer ring simultaneously; Permanent wheel 7 compresses planetary bevel-type 9 with perseverance wheel 8 under the effect of belleville spring 6, provide enough impacting force to produce essential friction (traction) power of transmission; When sun gear rotates, planetary bevel-type with friction (traction) the power effect of sun gear contacting point under, make pure rolling, i.e. spinning motion; Because it is moving that permanent wheel 7 and permanent wheel 8 radially maintain static, thereby planetary bevel-type also will be made revolution motion around input shaft 4 in rotation.Axle on the planetary bevel-type links with planet carrier (pivoted arm) H, can do on planet carrier axially and move radially, and when planetary bevel-type 9 is made revolution motion, just drives planet carrier H, thereby through output shaft 1 output movement and power.During speed governing: the worm screw of rotating speed regulating mechanism 5, the rotation of drive worm gear, worm gear and speed adjustment screw adopt screw-thread fit, because the effect of positioning key, speed adjustment screw is only moved axially, thereby the position of control sun gear 3 moves radially planetary bevel-type 9 positions, be that transmission radius changes, realize speed regulation.
Embodiment 1:
Shown in Fig. 1-2, the bus of planetary bevel-type 9 is made indent formula camber line, in order to make contacting between sun gear 2, sun gear 3, permanent wheel 7, permanent wheel 8 and the planetary bevel-type 9 be the some contact, the evagination circular arc is arranged in the contacting point of sun gear 2 and sun gear 3 and permanent wheel 7 and permanent wheel 8 and planetary bevel-type 9.
Claims (2)
1. novel planetary awl dish stepless speed variator, it comprises input shaft (4) and output shaft (1), planetary bevel-type (9), sun gear, permanent wheel, dish spring (6) and speed regulating mechanism (5), sun gear (2) and (3) are connected on the input shaft (4), worm screw on the speed regulating mechanism (5) is connected on the support by bearing, worm gear on the speed regulating mechanism (5) by Bearing Installation on input shaft (4), speed adjustment screw on the speed regulating mechanism (5) is connected on the input shaft (4), it contacts with sun gear (3) by bearing, planetary bevel-type (9) is connected on the output shaft (1) by slide block, permanent wheel (8) and stage clip lid tighten together by stay bolt and are installed in then on the input shaft (4), permanent wheel (7) is enclosed between permanent wheel (8) and the stage clip lid, dish spring (6) is contained between permanent wheel (8) and the stage clip lid, it is characterized in that: the bus of planetary bevel-type (9) is circular arc, and sun gear is designed to the shape that concavo-convex bent altogether point contacts with the permanent wheel and the contacting point of planetary bevel-type (9).
2. novel planetary awl dish stepless speed variator according to claim 1, it is characterized in that: the bus of planetary bevel-type (9) is arranged to indent formula camber line, sun gear (2), sun gear (3), perseverance are taken turns the evagination circular arc that (7), permanent wheel (8) are arranged to the contacting point of planetary bevel-type (9) and the indent formula camber line bus of planetary bevel-type (9) is complementary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420058065 CN2900929Y (en) | 2004-12-27 | 2004-12-27 | Novel planet conical disc stepless speed variator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420058065 CN2900929Y (en) | 2004-12-27 | 2004-12-27 | Novel planet conical disc stepless speed variator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2900929Y true CN2900929Y (en) | 2007-05-16 |
Family
ID=38085092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420058065 Expired - Fee Related CN2900929Y (en) | 2004-12-27 | 2004-12-27 | Novel planet conical disc stepless speed variator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2900929Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101598198A (en) * | 2008-06-06 | 2009-12-09 | 吴志强 | A kind of composite inner cone output planetary cone type stepless variable speed unit |
| CN101598200A (en) * | 2008-06-06 | 2009-12-09 | 吴志强 | A kind of composite cone disk and ring disk type stepless variable speed unit |
| CN101598207A (en) * | 2008-06-06 | 2009-12-09 | 吴志强 | A kind of composite steel ring separating cone type stepless variable speed unit |
| CN101598202A (en) * | 2008-06-06 | 2009-12-09 | 吴志强 | A kind of composite rolling cone flat disk type stepless variable speed unit |
| CN102788126A (en) * | 2012-06-23 | 2012-11-21 | 郭克亚 | Infinitely variable transmission mechanism with bevel wheel |
| CN101598199B (en) * | 2008-06-06 | 2013-04-10 | 吴志强 | Composite steel ball inner cone gear type stepless variable speed unit |
| CN101598205B (en) * | 2008-06-06 | 2013-06-26 | 吴志强 | Composite pyramid type stepless variable speed unit |
-
2004
- 2004-12-27 CN CN 200420058065 patent/CN2900929Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101598198A (en) * | 2008-06-06 | 2009-12-09 | 吴志强 | A kind of composite inner cone output planetary cone type stepless variable speed unit |
| CN101598200A (en) * | 2008-06-06 | 2009-12-09 | 吴志强 | A kind of composite cone disk and ring disk type stepless variable speed unit |
| CN101598207A (en) * | 2008-06-06 | 2009-12-09 | 吴志强 | A kind of composite steel ring separating cone type stepless variable speed unit |
| CN101598202A (en) * | 2008-06-06 | 2009-12-09 | 吴志强 | A kind of composite rolling cone flat disk type stepless variable speed unit |
| CN101598200B (en) * | 2008-06-06 | 2012-09-26 | 吴志强 | Composite cone disk and ring disk type stepless variable speed unit |
| CN101598207B (en) * | 2008-06-06 | 2013-04-10 | 吴志强 | Composite steel ring separating cone type stepless variable speed unit |
| CN101598199B (en) * | 2008-06-06 | 2013-04-10 | 吴志强 | Composite steel ball inner cone gear type stepless variable speed unit |
| CN101598202B (en) * | 2008-06-06 | 2013-05-08 | 吴志强 | Composite rolling cone flat disk type stepless variable speed unit |
| CN101598205B (en) * | 2008-06-06 | 2013-06-26 | 吴志强 | Composite pyramid type stepless variable speed unit |
| CN101598198B (en) * | 2008-06-06 | 2013-06-26 | 吴志强 | Composite inner cone output planetary cone type stepless variable speed unit |
| CN102788126A (en) * | 2012-06-23 | 2012-11-21 | 郭克亚 | Infinitely variable transmission mechanism with bevel wheel |
| CN102788126B (en) * | 2012-06-23 | 2014-12-17 | 郭克亚 | Infinitely variable transmission mechanism with bevel wheel |
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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: 20070516 Termination date: 20100127 |