CN104864049A - Flexible roller-meshed harmonic reducer - Google Patents
Flexible roller-meshed harmonic reducer Download PDFInfo
- Publication number
- CN104864049A CN104864049A CN201510192426.6A CN201510192426A CN104864049A CN 104864049 A CN104864049 A CN 104864049A CN 201510192426 A CN201510192426 A CN 201510192426A CN 104864049 A CN104864049 A CN 104864049A
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- CN
- China
- Prior art keywords
- hole
- roller
- cam
- groove
- limberoller
- 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
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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
- F16H13/00—Gearing for conveying rotary motion with constant gear ratio by friction between rotary members
- F16H13/02—Gearing for conveying rotary motion with constant gear ratio by friction between rotary members without members having orbital motion
- F16H13/04—Gearing for conveying rotary motion with constant gear ratio by friction between rotary members without members having orbital motion with balls or with rollers acting in a similar manner
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
Abstract
The invention relates to a flexible roller-meshed harmonic reducer which comprises an external gear, a cam and an end cap, wherein a through hole is formed in the center of the external gear; a plurality of grooves are formed in the inner wall of the through hole in the axial direction of the external gear; the cross section of the cam is elliptical, and the cam is arranged inside the through hole; a plurality of rollers are arranged between the cam and the through hole; the number of the rollers is smaller than that of the grooves; one end of each roller is arranged on the end cap; the rollers at the two ends of a long shaft positioned on the cross section of the cam are totally meshed with the corresponding grooves in the through hole; the rollers at the two ends of a short shaft positioned on the cross section of the cam are totally separated from the corresponding grooves in the through hole; the rollers at other positions are in a transition state, between total meshing and total separation, with the grooves in the through hole. According to the flexible roller-meshed harmonic reducer provided by the invention, the flexible rollers are used to replace flexible gears, so that the internal space is reduced, the service life is prolonged, and the transmission characteristic of low rotating speed and large torque is achieved.
Description
Technical field
The present invention relates to retarding device field, refer in particular to the harmonic speed reducer that a kind of limberoller replaces the limberoller engagement of flexbile gear.
Background technique
In harmonic speed reducer, flexbile gear periodically deforms generation alternating stress at the volley always, alternating stress easily makes flexbile gear produce fatigue ruption, cause flexbile gear to lose efficacy cannot work, for this reason, we have developed the harmonic speed reducer that a kind of limberoller replaces the limberoller engagement of flexbile gear, thus improve working life, and have the transport characteristics of low rotation speed large torque.
Summary of the invention
The present invention seeks to the harmonic speed reducer in order to overcome the limberoller engagement that the deficiencies in the prior art provide a kind of limberoller to replace flexbile gear.
For achieving the above object, the technical solution used in the present invention is: a kind of harmonic speed reducer of limberoller engagement, comprises external gear, cam, end cap; The center of described external gear is provided with through hole; The inwall of described through hole arranges multiple groove along external gear axial direction; The ellipsoidal cross section of described cam, and be arranged in through hole; Many rollers are provided with between described cam and through hole; The number of described roller is less than the number of groove; One end of described every root roller is separately positioned on end cap; The groove being positioned at the major axis two ends roller of cam section corresponding with through hole engages completely, the groove being positioned at the minor axis two ends roller of cam section corresponding with through hole is thrown off completely, and what the roller of all the other positions was corresponding with the groove in through hole is in the transition state engaging and depart from.
Preferably, described multiple groove is uniformly distributed, and each groove semicircular in shape.
Preferably, a side of described end cap arranges multiple circular hole; One end of described every root roller is corresponding to be respectively arranged in different circular holes.
Preferably, described multiple circular hole is uniformly distributed; The number of described circular hole is identical with the number of roller, and the diameter of circular hole is greater than the diameter of roller.
Due to the utilization of technique scheme, the present invention compared with prior art has following advantages:
The harmonic speed reducer of limberoller engagement of the present invention, by replacing flexbile gear with limberoller, had both been saved inner space, had been turn improved working life, and just had the transport characteristics of low rotation speed large torque under the advantage that ensure that existing harmonic speed reducer.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, technical solution of the present invention is described further:
Accompanying drawing 1 is the plan view of the harmonic speed reducer of limberoller of the present invention engagement;
Accompanying drawing 2 is C-C sectional view in harmonic speed reducer Fig. 1 of limberoller of the present invention engagement;
Accompanying drawing 3 is the structural representation of the harmonic speed reducer of limberoller of the present invention engagement;
Wherein: 1, external gear; 2, roller; 3, cam; 4, end cap; 5, circular hole.
Embodiment
Below in conjunction with drawings and the specific embodiments, the present invention is described in further detail.
Accompanying drawing 1-3 is the harmonic speed reducer of limberoller of the present invention engagement, comprises external gear 1, cam 3, end cap 4; The center of described external gear 1 is provided with through hole; The inwall of described through hole arranges multiple groove along external gear axial direction; Described multiple groove is uniformly distributed, and each groove semicircular in shape; The ellipsoidal cross section of described cam; Described cam 3 is arranged in through hole; Many rollers 2 are provided with between described cam 3 and through hole; The number of described roller 2 is less than the number of groove; One side of described end cap 4 arranges multiple circular hole 5; Described multiple circular hole 5 is uniformly distributed; The number of described circular hole 5 is identical with the number of roller 2, and the diameter of circular hole 5 is greater than the diameter of roller 2; One end of described every root roller 2 is corresponding to be respectively arranged in different circular holes; The groove being positioned at the major axis two ends roller 2 in cam 3 cross section corresponding with through hole engages completely, the groove being positioned at the minor axis two ends roller 2 in cam 3 cross section corresponding with through hole is thrown off completely, and what the roller 2 of all the other positions was corresponding with the groove in through hole is in the transition state engaging and depart from.
During use: fixing external gear 1, rotated continuously by driven by motor cam 3, under the rotation of cam 3, make roller 2 constantly change with the engagement of external gear 1, by engaging-in, engage, nibble out, throw off and carry out again and again, thus drive end cap 4 opposing cam 3 opposite direction slow circumvolve by roller 2, drive load movement, play decelerating effect.
Due to the utilization of technique scheme, the present invention compared with prior art has following advantages:
The harmonic speed reducer of limberoller engagement of the present invention, by replacing flexbile gear with limberoller, had both been saved inner space, had been turn improved working life, and just had the transport characteristics of low rotation speed large torque under the advantage that ensure that existing harmonic speed reducer.
Below be only embody rule example of the present invention, protection scope of the present invention is not constituted any limitation.The technological scheme that all employing equivalents or equivalence are replaced and formed, all drops within rights protection scope of the present invention.
Claims (4)
1. a harmonic speed reducer for limberoller engagement, is characterized in that: comprise external gear, cam, end cap; The center of described external gear is provided with through hole; The inwall of described through hole arranges multiple groove along external gear axial direction; The ellipsoidal cross section of described cam, and be arranged in through hole; Many rollers are provided with between described cam and through hole; The number of described roller is less than the number of groove; One end of described every root roller is separately positioned on end cap; The groove being positioned at the major axis two ends roller of cam section corresponding with through hole engages completely, the groove being positioned at the minor axis two ends roller of cam section corresponding with through hole is thrown off completely, and what the roller of all the other positions was corresponding with the groove in through hole is in the transition state engaging and depart from.
2. the harmonic speed reducer of limberoller engagement according to claim 1, is characterized in that: described multiple groove is uniformly distributed, and each groove semicircular in shape.
3. the harmonic speed reducer of limberoller engagement according to claim 1, is characterized in that: a side of described end cap arranges multiple circular hole; One end of described every root roller is corresponding to be respectively arranged in different circular holes.
4. the harmonic speed reducer of limberoller engagement according to claim 3, is characterized in that: described multiple circular hole is uniformly distributed; The number of described circular hole is identical with the number of roller, and the diameter of circular hole is greater than the diameter of roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510192426.6A CN104864049A (en) | 2015-04-22 | 2015-04-22 | Flexible roller-meshed harmonic reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510192426.6A CN104864049A (en) | 2015-04-22 | 2015-04-22 | Flexible roller-meshed harmonic reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104864049A true CN104864049A (en) | 2015-08-26 |
Family
ID=53910103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510192426.6A Pending CN104864049A (en) | 2015-04-22 | 2015-04-22 | Flexible roller-meshed harmonic reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104864049A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351451A (en) * | 2015-11-30 | 2016-02-24 | 湖南省金函数科技有限公司 | Roller type harmonic reducer |
| CN105626800A (en) * | 2016-03-29 | 2016-06-01 | 王小三 | Ball reducer |
| CN107044527A (en) * | 2016-02-08 | 2017-08-15 | 谐波传动***有限公司 | The flexible external gear and cup type Wave gear device of cup-shaped |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0020314A1 (en) * | 1979-05-21 | 1980-12-10 | FFV Industriprodukter Aktiebolag | Cycloidal transmission having external cam curves |
| CN87207321U (en) * | 1987-07-20 | 1988-05-11 | 严明 | Shifting roller decelerator |
| CN2056202U (en) * | 1989-06-14 | 1990-04-18 | 唐东先 | Speed-reducer of resilient cycloidal pin gear |
| CN2081013U (en) * | 1990-10-26 | 1991-07-17 | 姚传志 | Harmonic speed reducer |
| CN1067719A (en) * | 1992-05-28 | 1993-01-06 | 王敏良 | Roller ring gear conjugation transmission speed reducer |
| CN2409378Y (en) * | 2000-02-19 | 2000-12-06 | 严明 | Pure rolling engaged shifting roll speed reducer |
| CN2531173Y (en) * | 2002-03-04 | 2003-01-15 | 西安科技学院 | Cylindrical roller movable gear planetary speed reducer |
| US20120234121A1 (en) * | 2011-03-16 | 2012-09-20 | Caterpillar, Inc. | Spur Gear Final Drive with Integrated Brakes |
| CN204628456U (en) * | 2015-04-22 | 2015-09-09 | 苏州市恒加新精密机械科技有限公司 | A kind of harmonic speed reducer of limberoller engagement |
-
2015
- 2015-04-22 CN CN201510192426.6A patent/CN104864049A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0020314A1 (en) * | 1979-05-21 | 1980-12-10 | FFV Industriprodukter Aktiebolag | Cycloidal transmission having external cam curves |
| CN87207321U (en) * | 1987-07-20 | 1988-05-11 | 严明 | Shifting roller decelerator |
| CN2056202U (en) * | 1989-06-14 | 1990-04-18 | 唐东先 | Speed-reducer of resilient cycloidal pin gear |
| CN2081013U (en) * | 1990-10-26 | 1991-07-17 | 姚传志 | Harmonic speed reducer |
| CN1067719A (en) * | 1992-05-28 | 1993-01-06 | 王敏良 | Roller ring gear conjugation transmission speed reducer |
| CN2409378Y (en) * | 2000-02-19 | 2000-12-06 | 严明 | Pure rolling engaged shifting roll speed reducer |
| CN2531173Y (en) * | 2002-03-04 | 2003-01-15 | 西安科技学院 | Cylindrical roller movable gear planetary speed reducer |
| US20120234121A1 (en) * | 2011-03-16 | 2012-09-20 | Caterpillar, Inc. | Spur Gear Final Drive with Integrated Brakes |
| CN204628456U (en) * | 2015-04-22 | 2015-09-09 | 苏州市恒加新精密机械科技有限公司 | A kind of harmonic speed reducer of limberoller engagement |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351451A (en) * | 2015-11-30 | 2016-02-24 | 湖南省金函数科技有限公司 | Roller type harmonic reducer |
| CN107044527A (en) * | 2016-02-08 | 2017-08-15 | 谐波传动***有限公司 | The flexible external gear and cup type Wave gear device of cup-shaped |
| CN105626800A (en) * | 2016-03-29 | 2016-06-01 | 王小三 | Ball reducer |
| CN105626800B (en) * | 2016-03-29 | 2017-11-10 | 王小三 | Ball reducer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150826 |