CN202971758U - Planetary gear reducer - Google Patents
Planetary gear reducer Download PDFInfo
- Publication number
- CN202971758U CN202971758U CN 201220509518 CN201220509518U CN202971758U CN 202971758 U CN202971758 U CN 202971758U CN 201220509518 CN201220509518 CN 201220509518 CN 201220509518 U CN201220509518 U CN 201220509518U CN 202971758 U CN202971758 U CN 202971758U
- Authority
- CN
- China
- Prior art keywords
- spline
- sun gear
- gear
- planet
- planetary
- 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.)
- Withdrawn - After Issue
Links
Images
Landscapes
- Retarders (AREA)
Abstract
The utility model provides a planetary gear reducer and belongs to the technical field of machinery. The planetary gear reducer solves the problem that the conventional planetary gear reducer is abraded after long-term operation to lower transmission precision, and comprises an output planetary frame, an inner gear ring, sun gears A and B and a plurality of sets of planetary gear structures, wherein each set of planetary gear structure comprises a planetary gear shaft and planetary gears A and B; the sun gears A and B are respectively provided with splines A and B; both the splines A and B are provided with a plurality of spaced connecting ends; the connecting ends are provided with helicoids with a helical angle of a; and the splines B are located in the inner cavity of the output planetary frame, and a sliding bush pressure spring device is arranged between the wall of the inner cavity of the planetary frame and the splines B. The planetary gear reducer has the advantage that the transmission precision is improved via compensating abrasion.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of planet-gear speed reducer.
Background technique
Along with making constant progress of science and technology, a large amount of of numerical control machine tool popularize, and are also more and more higher to the requirement of speed reducer precision.Improving at present the speed reducer precision is generally first to process high-precision part these high-precision parts to be installed the high-precision speed reducer of formation again, is divided into " ultraprecise arm gap, accurate arm gap, standard arm gap ".But the method for this raising speed reducer precision also exists some problems: the one, and the required precision of its part is high, and difficulty of processing is very large, and processing cost is also high; The 2nd, even be assembled into high-precision speed reducer by the high-precision part that processes, but this high-precision part can produce wearing and tearing after long-term the use, and precision is reduced, thereby causes whole speed reducer running accuracy to reduce.
Summary of the invention
The purpose of this utility model is to have the problems referred to above for existing technology, has proposed a kind of very high part of machining accuracy that do not need and also can realize the high-precision planet-gear speed reducer of speed reducer.
the purpose of this utility model can realize by following technical proposal: planet-gear speed reducer, comprise the output planetary frame, be set in the outer ring gear of output planetary frame, sun gear A and sun gear B and some groups of planetary gear constructions as input end, every group of planetary gear construction comprises as output terminal and is arranged on planet pin on planet carrier and fixed cover is located at planetary pinion A on planet pin, planetary pinion B, described planetary pinion A and planetary pinion B outer gearing respectively are engaged in above-mentioned ring gear in above-mentioned sun gear A and sun gear B and all, it is characterized in that: have respectively spline A and spline B on described sun gear A and sun gear B, all have on spline A and spline B several adjacent between every gapped connecting end, has the helicoid that helix angle is a on connecting end, connecting end on described spline A, gap and helicoid are gone up corresponding gap with spline B respectively, connecting end and helicoid match, described spline B in output planetary frame inner chamber and and output planetary frame internal chamber wall between be provided with the sliding sleeve compression-spring device, thereby described sliding sleeve compression-spring device can make the helicoid of the spline B on it be slidably connected along the upper corresponding helicoid of spline A to sun gear B effect makes sun gear B produce an angle of swing with respect to sun gear A.
In above-mentioned planet-gear speed reducer, described angle of swing is 0 °～a.
In above-mentioned planet-gear speed reducer, described helix angle a is 1.5 °～35 °.As preferably, helix angle a is 3 °.
In above-mentioned planet-gear speed reducer, described sliding sleeve compression-spring device comprises thrust-bearing, flip sleeve and sliding sleeve stage clip, described thrust-bearing is resisted against between sun gear B and flip sleeve, and described sliding sleeve stage clip is resisted against between flip sleeve and output planetary frame internal chamber wall.
In above-mentioned planet-gear speed reducer, described flip sleeve has left installation cavity and right installation cavity, and above-mentioned sliding sleeve stage clip one end stretches in right installation cavity and is resisted against on right installation cavity inwall, and the other end is resisted against on the internal chamber wall of output planetary frame.
In above-mentioned planet-gear speed reducer, described sun gear B has outer step near that end of flip sleeve, above-mentioned thrust-bearing one end is set on above-mentioned outer step and is resisted against on outer step wall, and the other end is arranged in above-mentioned left installation cavity and is resisted against on the chamber wall of left installation cavity.
In above-mentioned planet-gear speed reducer, described planetary gear construction is three groups or four groups or five groups.
compared with prior art, all has the connecting end that structure is coincide mutually on the spline A of this planet gear reduction unit and spline B, gap and helix angle are the structures such as helicoid of a, under the active force of sliding sleeve stage clip, connecting end on its spline A, gap and helicoid are gone up corresponding gap with spline B respectively, connecting end and helicoid are combined closely mutually, thereby can make sun gear B with respect to any angle of swing in 0 °～a of sun gear A generation scope, thereby compensated the gap in various degree that gear produces because of service wear, improved transmission accuracy, thereby not needing to process high-precision component assembles again, also can efficiently solve simultaneously the precision that causes because of parts wear and reduce problem.
Description of drawings
Fig. 1 is sectional view of the present utility model.
Fig. 2 is structural representation of the present utility model.
Fig. 3 is the stereogram of sun gear A.
Fig. 4 is the stereogram of sun gear B.
In figure, 1, sun gear A; 2, spline A; 3, sun gear B; 4, spline B; 5, helicoid; 6, planetary pinion A; 7, planetary pinion B; 8, ring gear; 9, planet pin; 10, output planetary frame; 11, thrust-bearing; 12, flip sleeve; 13, sliding sleeve stage clip.
Embodiment
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
as Fig. 1, 2, shown in 3 and 4, this planet gear reduction unit comprises output planetary frame 10, be set in the outer ring gear 8 of output planetary frame 10, sun gear A1 and sun gear B3 and three groups of planetary gear constructions as input end, every group of planetary gear construction comprises as output terminal and is arranged on planet pin 9 on planet carrier and fixed cover is located at planetary pinion A6 on planet pin 9, planetary pinion B7, planetary pinion A6 and planetary pinion B7 outer gearing respectively are engaged in ring gear 8 in sun gear A1 and sun gear B3 and all, have respectively spline A2 and spline B4 on sun gear A1 and sun gear B3, all have two on spline A2 and spline B4 each other every gapped connecting end, the helicoid 5 that to have two helix angles on connecting end be a, a in the present embodiment is 3 °.Connecting end on spline A2, gap and helicoid 5 match with spline B4 upper corresponding gap, connecting end and helicoid 5 respectively.
spline B4 in output planetary frame 10 inner chambers and and output planetary frame 10 internal chamber walls between be provided with the sliding sleeve compression-spring device, the sliding sleeve compression-spring device comprises thrust-bearing 11, flip sleeve 12 and sliding sleeve stage clip 13, flip sleeve 12 has left installation cavity and right installation cavity, sliding sleeve stage clip 13 1 ends stretch in right installation cavity and are resisted against on right installation cavity inwall, the other end is resisted against on the internal chamber wall of output planetary frame 10, sun gear B3 has outer step near that end of flip sleeve 12, thrust-bearing 11 1 ends are set on outer step and are resisted against on outer step wall, the other end is arranged in left installation cavity and is resisted against on the chamber wall of left installation cavity.
Sun gear A1 is as input end, planet pin 9 is as output terminal, sun gear A1 rotates by spline A2, spline B4 and drives sun gear B3 rotation, sun gear A1 and sun gear B3 drive respectively planetary pinion A6 and planetary pinion B7 rotates and then drive planet pin 9 rotations, planetary pinion A6 is identical with the number of gears on planetary pinion B7, sun gear A1 is identical with the number of gears of sun gear B3, the power transmission output that sun gear and the planetary gear ratio by correspondence reaches planet pin 9.Speed reducer is the constantly wearing and tearing of its gear in the process of working long hours, and can produce the space between its gear engagement, thereby reduce transmission accuracy each other.This speed reducer is by in two gap structures that are respectively arranged with on spline A2 and spline B4 between two connecting ends and connecting end, connecting end on spline A2 can extend in the space of spline B4, connecting end on spline B4 can extend in the space of spline A2, thereby realizes the power transmission between sun gear A1 and sun gear B3.simultaneously, be provided with helix angle a and be the helicoid 5 of 3 ° on connecting end, and the connecting end on spline B4 is pushed under to the thrust of sun gear B3 and spline B4 in the space on spline A2 at the sliding sleeve compression-spring device and the helicoid 5 on spline B4 slides and combines closely along the helicoid 5 on spline A2, under the leading role of corresponding helicoid 5, have circumferential displacement, sun gear B3 can produce angle of swing with respect to sun gear A1, when spline A2 and spline B4 fully in conjunction with the time its angle of swing will reach 3 ° of the angles of helix angle, therefore its rotation angle range that can adjust to is 0 °～3 °, this adjustment angle is own so fully can be to compensating because of the gap that produces between its gear that works long hours, thereby improve its transmission accuracy.Simultaneously when producing, also no longer necessarily need the part of machining high-precision to be assembled into again the highi degree of accuracy transmission that speed reducer reaches speed reducer, the high-precision requirement when this kind compensation way can realize also that speed reducer production is dispatched from the factory.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (6)
1. planet-gear speed reducer, comprise output planetary frame (10), be set in the outer ring gear (8) of output planetary frame (10), sun gear A (1) and sun gear B (3) and some groups of planetary gear constructions as input end, every group of planetary gear construction comprises as output terminal and is arranged on planet pin (9) on planet carrier and fixed cover is located at planetary pinion A (6) on planet pin (9), planetary pinion B (7), described planetary pinion A (6) and planetary pinion B (7) respectively outer gearing in above-mentioned sun gear A (1) and sun gear B (3) and equal in be engaged in above-mentioned ring gear (8), it is characterized in that: have respectively spline A (2) and spline B (4) on described sun gear A (1) and sun gear B (3), all have on spline A (2) and spline B (4) several adjacent between every gapped connecting end, has helicoid (5) on connecting end, helicoid (5) has helix angle, connecting end on described spline A (2), gap and helicoid (5) are gone up corresponding gap with spline B (4) respectively, connecting end and helicoid (5) match, described spline B (4) be arranged in output planetary frame (10) inner chamber and and output planetary frame (10) internal chamber wall between be provided with the sliding sleeve compression-spring device, the helicoid (5) that described sliding sleeve compression-spring device can make the spline B (4) on it to sun gear B (3) effect along the upper corresponding helicoid (5) of spline A (2) thus be slidably connected and make sun gear B (3) produce an angle of swing with respect to sun gear A (1).
2. planet-gear speed reducer according to claim 1, is characterized in that, described helix angle is 1.5 °～35 °.
3. planet-gear speed reducer according to claim 2, it is characterized in that, described sliding sleeve compression-spring device comprises thrust-bearing (11), flip sleeve (12) and sliding sleeve stage clip (13), described thrust-bearing (11) is resisted against between sun gear B (3) and flip sleeve (12), and described sliding sleeve stage clip (13) is resisted against between flip sleeve (12) and output planetary frame (10) internal chamber wall.
4. planet-gear speed reducer according to claim 3, it is characterized in that, described flip sleeve (12) has left installation cavity and right installation cavity, above-mentioned sliding sleeve stage clip (13) one ends stretch in right installation cavity and are resisted against on right installation cavity inwall, and the other end is resisted against on the internal chamber wall of output planetary frame (10).
5. planet-gear speed reducer according to claim 4, it is characterized in that, described sun gear B (3) has outer step near that end of flip sleeve (12), above-mentioned thrust-bearing (11) one ends are set on above-mentioned outer step and are resisted against on outer step wall, and the other end is arranged in above-mentioned left installation cavity and is resisted against on the chamber wall of left installation cavity.
6. planet-gear speed reducer according to claim 1, is characterized in that, described planetary gear construction is three groups or four groups or five groups.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220509518 CN202971758U (en) | 2012-09-25 | 2012-09-25 | Planetary gear reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220509518 CN202971758U (en) | 2012-09-25 | 2012-09-25 | Planetary gear reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202971758U true CN202971758U (en) | 2013-06-05 |
Family
ID=48512835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220509518 Withdrawn - After Issue CN202971758U (en) | 2012-09-25 | 2012-09-25 | Planetary gear reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202971758U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865336A (en) * | 2012-09-25 | 2013-01-09 | 台州市三凯机电有限公司 | Planet-gear speed reducer |
| CN111536205A (en) * | 2020-05-21 | 2020-08-14 | 安徽津野数控科技有限公司 | Low return clearance planetary reducer for numerical control machine tool |
-
2012
- 2012-09-25 CN CN 201220509518 patent/CN202971758U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865336A (en) * | 2012-09-25 | 2013-01-09 | 台州市三凯机电有限公司 | Planet-gear speed reducer |
| CN102865336B (en) * | 2012-09-25 | 2015-10-21 | 台州市三凯机电有限公司 | Planet-gear speed reducer |
| CN111536205A (en) * | 2020-05-21 | 2020-08-14 | 安徽津野数控科技有限公司 | Low return clearance planetary reducer for numerical control machine tool |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105378336A (en) | Incorporation of a gear train in a pinion wall in a gearbox for a turbomachine | |
| CN109664178B (en) | Polishing mechanism with variable transmission ratio and eccentric value changed through eccentric adjusting block | |
| WO2017046767A1 (en) | Precision planetary gear | |
| CN202971758U (en) | Planetary gear reducer | |
| CN105612329A (en) | Adjustment apparatus for changing the compression ratio in an internal combustion engine | |
| CN202971761U (en) | Planetary gear speed reducer | |
| CN202203345U (en) | Compound precision cycloid decelerator | |
| CN202937629U (en) | Bearing unit used for supporting transmission shaft and gear reducer | |
| CN102817967B (en) | Speed-changing gear device | |
| CN108825729A (en) | A kind of coaxial dual-speed speed reducer of quartz ingot lifting apparatus | |
| CN203463597U (en) | Rotating mechanism capable of eliminating lateral transmission clearance of bevel gear | |
| CN102352911A (en) | Axis-pin-type reduction box at transmission last level | |
| CN102865336B (en) | Planet-gear speed reducer | |
| CN102878250A (en) | Planet gear reducer | |
| CN101363516B (en) | Circular mobile tooth and small tooth difference variable-speed drive device | |
| CN204239628U (en) | Cycloidal planetary gear speed reducer | |
| CN205190703U (en) | Bevel gear reducer | |
| CN201262193Y (en) | Unidirectional two-row combined needle bearing | |
| CN104121331A (en) | Gear transmission device of double-screw impregnator | |
| CN206478175U (en) | A kind of super abrasive electromechanical integration planet-gear speed reducer | |
| CN202251709U (en) | Gear reducer | |
| CN103115112A (en) | Inner and outer tooth form meshing gear reducer | |
| CN102886398B (en) | Split-type vertical transmission device in fully-automatic numerically-controlled hydraulic tube bender | |
| CN201736117U (en) | Eccentric assembly of lapping machine main shaft | |
| CN201513521U (en) | Main reducer of vehicle drive axle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHEJIANG SANKAI MECHANICAL AND ELECTRICAL CO., LTD Free format text: FORMER NAME: TAIZHOU SANKAI MECHANICAL AND ELECTRICAL CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 317507 Zhejiang city of Wenling Province Wang Ruo town industrial zone plate Patentee after: ZHEJIANG SANKAI MECHANICAL AND ELECTRICAL CO., LTD. Address before: 317507 Zhejiang city of Wenling Province Wang Ruo town industrial zone plate Patentee before: Taizhou Sankai Mechanical and Electrical Co., Ltd. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20130605 Effective date of abandoning: 20151021 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |