CN2235046Y - Gear reduction unit - Google Patents
Gear reduction unit Download PDFInfo
- Publication number
- CN2235046Y CN2235046Y CN95213765U CN95213765U CN2235046Y CN 2235046 Y CN2235046 Y CN 2235046Y CN 95213765 U CN95213765 U CN 95213765U CN 95213765 U CN95213765 U CN 95213765U CN 2235046 Y CN2235046 Y CN 2235046Y
- Authority
- CN
- China
- Prior art keywords
- gear
- shaft
- input shaft
- fixed
- output
- 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
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
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
- F16H1/321—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear the orbital gear being nutating
Abstract
The utility model relates to a gear transmission device for transferring rotation movement, particularly a gear speed reducer. A gear (2) is fixed on the casing (5) of the speed reducer, and an input shaft (1) passes through the gear. One end is provided with a shaft journal which forms an included angle with the rotation axis of the input shaft, and the other end is supported by a bearing. A nutation gear (3) is a double-faced bevel gear, which is installed on the rotor journal of the input shaft through the bearing. An output gear shaft (4) is a gear shaft with bevel teeth. One face of the nutation gear (3) meshes with the stationary gear (2), and the other face meshes with the bevel teeth on the gear shaft (4). The utility model has the advantages of small amount of driving members, simple structure and strong mechanism rigidity and reliability, and the amount of driving members is not increased even if the reduction ratio is increased. Besides, all the gears do not need special processing.
Description
The utility model relates to a kind of gear drive of transferring rotational motion, particularly gear reducer.
At present, the gear reducer of industrial normal use mostly is cylinder, circular cone or plane table thermoconductivity meter, the gear engagement mode of these gear reducers is mainly outer gearing, contact ratio is less than 2, this just requires each tooth of gear of output end pair all will bear the contact stress that output torque produces separately on gear teeth face, thereby require gear teeth face to have high hardness, the gear material hardening capacity is had relatively high expectations.In addition, when reduction of speed than greater than 40 the time, must adopt secondary or triple reduction gear or plane table thermoconductivity meter, because moving element is many, so the rigidity of complete machine and poor reliability.Chinese patent ZL86105657 provides a kind of " gear reducer and manufacture method thereof ", an angle is arranged between transducer geared parts center line in this speed reducer and the input shaft center line, an external gear on the transducer be loaded on the eccentric journal of output shaft and with a more ring gear engagement of the number of teeth that is fixed on the housing, another external gear meshes with a ring gear that is fixed on the same number of teeth on the output shaft.This gear reducer exists following shortcoming: 1. driving component is more, mechanism's rigidity and poor reliability.2. because the transducer gear is spur gear, so need to adopt particular form to process.
The utility model purpose be to provide a kind of simple in structure, driving component is few, easy to process, the gear reducer of mechanism's rigidity and good reliability overcomes above-mentioned shortcoming of the prior art.
The purpose of this utility model is achieved by the following technical solution: gear reducer comprises input shaft (1), output gear shaft (4), nutating gear (3), fixed gear (2) in forming, fixed gear (2) is a bevel gear, be fixed on the reducer shell, input shaft (1) passes fixed gear (2), one end has the axle journal that is angle with the input shaft rotational axis, and the other end is supported by bearing.Nutating gear (3) is two-sided bevel gear, and on the eccentric journal of input shaft, output gear shaft (4) is for having the gear shaft of boring tooth by Bearing Installation.Face of nutating gear (3) and fixed gear (2) engagement, the awl tooth on another side and the output gear shaft (4) meshes.
The utility model driving component is few, and is simple in structure, and also can not increase transmission part because of the raising of reduction of speed ratio, mechanism's rigidity and good reliability, and all gear does not need special processing.
Accompanying drawing is the utility model example structure schematic representation.
Below in conjunction with accompanying drawing, further specify the utility model by embodiment.
In an embodiment, gear reducer comprises input shaft (1), output gear shaft (4) fixed gear (2), nutating gear (3) in forming, fixed gear (2) is a bevel gear, be fixed on the reducer shell (5), input shaft (1) passes fixed gear (2), one end has the axle journal that is 2 ° of-15 ° of angles with the input shaft rotational axis, and this end inserts in the output gear shaft and the bearing supporting is arranged, and the other end is supported by bearing.Like this, both the input shaft rigidity can be improved, the volume of input shaft supporting portion can be reduced again.Nutating gear (3) is two-sided bevel gear, is installed in by needle bearing on the eccentric journal of input shaft, and output gear shaft (4) is for having the gear shaft of boring tooth.Face of nutating gear (3) and bevel gear (2) engagement, the awl tooth on another side and the output gear shaft (4) meshes.
Input shaft (1) high speed rotating under the drive of external force rotates around input shaft simultaneously with this axle journal that is the angle of cut.Because the geometrical axis and the spin axis of this axle journal are certain angle, so, can drive nutating gear (3) and do oscillating motion around spin axis by needle bearing.The last number of teeth that is meshed part with fixed gear (2) of nutating gear (3) has a difference.When input shaft begins to rotate, nutating gear (3) is respectively A and A ' with the tooth that fixed gear (2) is meshed, when input shaft rotates a circle, nutating gear (3) swing one-period, what be meshed with the last A ' tooth of bevel gear once more on the nutating this moment gear will be the tooth on A tooth next door.That is, the nutating gear whenever rotates a circle, and just turns over several teeth with respect to bevel gear, and it is poor that the number of teeth that turns over equals the number of teeth.Because fixing tooth on the output gear shaft and the engagement of the awl tooth on the nutating gear, output gear shaft (4) can be exported the rotating speed behind the reduction of speed.
Claims (2)
1, a kind of have an input shaft (1), output gear shaft (4), the gear reducer of fixed gear (2), gear is fixed on the reducer shell, input shaft (1) passes gear, one end has the axle journal that is angle with the input shaft rotational axis, the other end is supported by bearing, fixed gear is a bevel gear, output gear shaft (4) is for having the gear shaft of boring tooth, also comprise nutating gear (3) in it is characterized in that forming, nutating gear (3) is two-sided bevel gear, by Bearing Installation on the eccentric journal of input shaft, face of nutating gear (3) and fixed gear (2) engagement, the awl tooth on another side and the output gear shaft (4) meshes.
2, the gear reducer according to claim 1 is characterized in that input shaft (1) one end has the axle journal that is 2 ° of-15 ° of angles with the input shaft rotational axis, and this end inserts in output shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95213765U CN2235046Y (en) | 1995-06-23 | 1995-06-23 | Gear reduction unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95213765U CN2235046Y (en) | 1995-06-23 | 1995-06-23 | Gear reduction unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2235046Y true CN2235046Y (en) | 1996-09-11 |
Family
ID=33863553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95213765U Expired - Fee Related CN2235046Y (en) | 1995-06-23 | 1995-06-23 | Gear reduction unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2235046Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100348889C (en) * | 2005-12-12 | 2007-11-14 | 重庆大学 | Gyro decelerator |
| CN100431869C (en) * | 2003-06-12 | 2008-11-12 | C·劳勃汉默斯坦两合有限公司 | Step down gear train, more specifically for an adjusting device of a motor vehicle seat |
| CN107614931A (en) * | 2015-05-25 | 2018-01-19 | Thk株式会社 | Deceleration or speeder |
| CN110030337A (en) * | 2019-04-23 | 2019-07-19 | 大连交通大学 | A kind of coaxial single input and multi-output subtracts speed change integrated apparatus |
| CN110043628A (en) * | 2019-04-23 | 2019-07-23 | 大连交通大学 | A kind of high-mechanic nutating face gear transmission device |
| CN110043609A (en) * | 2019-04-23 | 2019-07-23 | 大连交通大学 | A kind of symmetrical structure variable speed drive |
| CN111219447A (en) * | 2020-03-17 | 2020-06-02 | 苏州大学 | Cambered surface secondary envelope crown gear nutation transmission device |
| US20220397182A1 (en) * | 2019-11-11 | 2022-12-15 | The Gleason Works | Pericyclic transmission |
| WO2023116409A1 (en) * | 2021-12-22 | 2023-06-29 | 姜虹 | Nutation gear reducer |
-
1995
- 1995-06-23 CN CN95213765U patent/CN2235046Y/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100431869C (en) * | 2003-06-12 | 2008-11-12 | C·劳勃汉默斯坦两合有限公司 | Step down gear train, more specifically for an adjusting device of a motor vehicle seat |
| CN100348889C (en) * | 2005-12-12 | 2007-11-14 | 重庆大学 | Gyro decelerator |
| CN107614931B (en) * | 2015-05-25 | 2019-08-20 | Thk株式会社 | Deceleration or speeder |
| CN107614931A (en) * | 2015-05-25 | 2018-01-19 | Thk株式会社 | Deceleration or speeder |
| US10281008B2 (en) | 2015-05-25 | 2019-05-07 | Thk Co., Ltd. | Speed reduction or speed increasing apparatus |
| CN110043609A (en) * | 2019-04-23 | 2019-07-23 | 大连交通大学 | A kind of symmetrical structure variable speed drive |
| CN110043628A (en) * | 2019-04-23 | 2019-07-23 | 大连交通大学 | A kind of high-mechanic nutating face gear transmission device |
| CN110030337A (en) * | 2019-04-23 | 2019-07-19 | 大连交通大学 | A kind of coaxial single input and multi-output subtracts speed change integrated apparatus |
| CN110043609B (en) * | 2019-04-23 | 2021-04-27 | 大连交通大学 | Variable speed transmission device with symmetrical structure |
| CN110043628B (en) * | 2019-04-23 | 2021-04-27 | 大连交通大学 | High-bearing seal face gear transmission device |
| CN110030337B (en) * | 2019-04-23 | 2021-04-27 | 大连交通大学 | Coaxial single-input multi-output speed reduction and change integrated device |
| US20220397182A1 (en) * | 2019-11-11 | 2022-12-15 | The Gleason Works | Pericyclic transmission |
| US11746853B2 (en) * | 2019-11-11 | 2023-09-05 | The Gleason Works | Pericyclic transmission |
| CN111219447A (en) * | 2020-03-17 | 2020-06-02 | 苏州大学 | Cambered surface secondary envelope crown gear nutation transmission device |
| WO2021184401A1 (en) * | 2020-03-17 | 2021-09-23 | 苏州大学 | Arc surface secondary enveloping crown gear nutation transmission device |
| WO2023116409A1 (en) * | 2021-12-22 | 2023-06-29 | 姜虹 | Nutation gear reducer |
| US11933385B2 (en) | 2021-12-22 | 2024-03-19 | Hong Jiang | Nutation reducer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2235046Y (en) | Gear reduction unit | |
| US4524644A (en) | Counterweight for orbital drive mechanism | |
| CN107237867A (en) | A kind of decelerator and method of work | |
| CN201575110U (en) | Eccentric shaft speed reducer | |
| CN209539936U (en) | A kind of four-piece type Cycloidal Wheel RV retarder | |
| CN216158208U (en) | Slip double-speed reducer | |
| CN102699234A (en) | Driving mechanism for steel bar bender | |
| CN113803416A (en) | Speed-coupled slip double-speed reducer | |
| CN212106828U (en) | Large-transmission-ratio speed reducer | |
| CN109780141B (en) | Conjugate cam hypocycloid speed reducer | |
| WO1999057458A1 (en) | Epicycloid type of gearing reduction unit without using special output elements | |
| CA2038156A1 (en) | Two gear, connecting arm and crank apparatus | |
| CN218301160U (en) | Device convenient to acquire angular position of motor with reduction gear | |
| CN2076186U (en) | Cycloidal pin-wheel speed reducer | |
| CN217328304U (en) | Two-stage cycloid speed reducer | |
| CN201075853Y (en) | Mechanical type sun's rays tracking apparatus | |
| CN216923064U (en) | Cycloidal speed reducer | |
| CN110748610A (en) | Bearing type cycloidal pin gear speed reducing mechanism | |
| CN216478713U (en) | Eccentric shaft planetary reducer | |
| CN210013983U (en) | Two-stage planetary reduction transmission mechanism with eccentric structure | |
| CN108412983A (en) | A kind of Double-outputting speed change box | |
| CN2551808Y (en) | Double bevel gear small tooth difference speed reducer | |
| CN2190803Y (en) | Counter matched with shear | |
| CN2149516Y (en) | Planet-gear type speed reducer | |
| CN2168988Y (en) | Planetary speed reducer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |