阅读说明：本技术 一种多级同轴行星齿轮减速器 (Multi-stage coaxial planetary gear reducer ) 是由 陈玉敏 于 2020-07-24 设计创作，主要内容包括：本发明公开了一种多级同轴行星齿轮减速器包括齿圈、左法兰、右法兰、行星齿轮组和定位轴,左法兰和右法兰设置在齿圈的左右两端,行星齿轮组设置在齿圈内部,行星齿轮组设置有行星齿轮架、行星齿、销轴、滚子和太阳轮,太阳轮和销轴设置在行星齿轮架上,行星齿套设在销轴上与销轴之间设有多个滚子,滚子滚动与销轴转动带动行星齿转动；行星齿轮组至少包括首级行星齿轮组和末级行星齿轮组,首级行星齿轮组后的行星齿轮组设置有通孔,首级行星齿轮组的太阳轮与定位轴的一端连接,定位轴的另一端穿过首级行星齿轮组后的行星齿轮组的通孔。有益的效果：通过定位轴的串联作用下,减速器在使用时,能在极大程度上减少多级行星齿轮组在传动时产生的偏差。(The invention discloses a multistage coaxial planetary gear reducer which comprises a gear ring, a left flange, a right flange, a planetary gear set and a positioning shaft, wherein the left flange and the right flange are arranged at the left end and the right end of the gear ring; the planetary gear set at least comprises a first-stage planetary gear set and a last-stage planetary gear set, a through hole is formed in the planetary gear set behind the first-stage planetary gear set, a sun gear of the first-stage planetary gear set is connected with one end of the positioning shaft, and the other end of the positioning shaft penetrates through the through hole of the planetary gear set behind the first-stage planetary gear set. The beneficial effects are that: under the series connection effect of the positioning shafts, when the speed reducer is used, the deviation generated by the multi-stage planetary gear set during transmission can be reduced to the greatest extent.)

1. A multi-stage coaxial planetary gear reducer comprises a gear ring, a left flange, a right flange, a planetary gear set and a positioning shaft, and is characterized in that the left flange and the right flange are arranged at the left end and the right end of the gear ring, the planetary gear sets are arranged inside the gear ring, the planetary gear set is arranged between the left flange and the right flange, the planetary gear set is provided with a planetary gear carrier, a planet gear, a pin shaft, a roller and a sun gear, the sun gear and the pin shaft are arranged on the planetary gear carrier, the planetary gear is sleeved on the pin shaft, a plurality of rollers are arranged between the planetary gear and the pin shaft, the planetary gear carrier drives the pin shaft to rotate, the planetary gear is driven to rotate by the rolling of the roller and the rotation of the pin shaft, and the; the planetary gear sets behind the first-stage planetary gear set are all provided with through holes, a sun gear of the first-stage planetary gear set is fixedly connected with one end of the positioning shaft, and the other end of the positioning shaft penetrates through the through holes of other planetary gear sets behind the first-stage planetary gear set.

2. A multi-stage coaxial planetary gear reducer comprises a gear ring, a left flange, a right flange, a planetary gear set and a positioning shaft, and is characterized in that the left flange and the right flange are arranged at the left end and the right end of the gear ring, the planetary gear sets are arranged inside the gear ring, the planetary gear set is arranged between the left flange and the right flange, the planetary gear set is provided with a planetary gear carrier, a planet gear, a pin shaft, a roller and a sun gear, the sun gear and the pin shaft are arranged on the planetary gear carrier, the planetary gear is sleeved on the pin shaft, a plurality of rollers are arranged between the planetary gear and the pin shaft, the planetary gear carrier drives the pin shaft to rotate, the planetary gear is driven to rotate by the rolling of the roller and the rotation of the pin shaft, and the; through holes are arranged on other planetary gear sets except the last planetary gear set, one end of the positioning shaft is fixedly connected with a planetary gear carrier of the last planetary gear set, and the other end of the positioning shaft penetrates through the through hole of the planetary gear set in front of the last planetary gear set.

3. A multi-stage coaxial planetary gear reducer comprises a gear ring, a left flange, a right flange, a planetary gear set and a positioning shaft, and is characterized in that the left flange and the right flange are arranged at the left end and the right end of the gear ring, the planetary gear sets are arranged inside the gear ring, the planetary gear set is arranged between the left flange and the right flange, the planetary gear set is provided with a planetary gear carrier, a planet gear, a pin shaft, a roller and a sun gear, the sun gear and the pin shaft are arranged on the planetary gear carrier, the planetary gear is sleeved on the pin shaft, a plurality of rollers are arranged between the planetary gear and the pin shaft, the planetary gear carrier drives the pin shaft to rotate, the planetary gear is driven to rotate by the rolling of the roller and the rotation of the pin shaft, and the; a multi-stage coaxial planetary gear reducer comprises an input shaft, one end of a driving shaft is fixedly connected with the input shaft, planetary gear sets in a gear ring are provided with through holes, and the other end of a positioning shaft sequentially penetrates through the through holes of a first-stage planetary gear set until the other end of the positioning shaft is inserted into the through holes of a last-stage planetary gear set.

4. A multi-stage coaxial planetary gear reducer comprises a gear ring, a left flange, a right flange, a planetary gear set and a positioning shaft, and is characterized in that the left flange and the right flange are arranged at the left end and the right end of the gear ring, the planetary gear sets are arranged inside the gear ring, the planetary gear set is arranged between the left flange and the right flange, the planetary gear set is provided with a planetary gear carrier, a planet gear, a pin shaft, a roller and a sun gear, the sun gear and the pin shaft are arranged on the planetary gear carrier, the planetary gear is sleeved on the pin shaft, a plurality of rollers are arranged between the planetary gear and the pin shaft, the planetary gear carrier drives the pin shaft to rotate, the planetary gear is driven to rotate by the rolling of the roller and the rotation of the pin shaft, and the; the multi-stage coaxial planetary gear reducer comprises an output shaft, one end of a driving shaft is fixedly connected with the output shaft, planetary gear sets in a gear ring are provided with through holes, and the other end of a positioning shaft sequentially penetrates through the through holes of a last-stage planetary gear set until the other end of the positioning shaft is inserted into the through hole of a first-stage planetary gear set.

5. A multi-stage coaxial planetary gear reducer according to any of claims 1-4, wherein when the planetary gear set is set within 3 stages or 3 stages, a plurality of rollers are used between the planetary gear and the pin; when the planetary gear set is set to 3 stages or more, the rollers are still used from the first-stage planetary gear set to the planetary gear set in 3 stages, and the rollers of the planetary gear set in 3 stages or more are changed to the rolling bars.

Technical Field

The invention belongs to the field of gear reducer manufacturing, and particularly relates to a multi-stage coaxial planetary gear reducer.

Background

In recent years, a planetary gear reducer has been widely used, but the planetary gear reducer commonly used in the market at present has a large friction force when performing multi-stage transmission, and is easy to deviate or wear during transmission, resulting in insufficient precision.

Disclosure of Invention

The present invention is directed to a multi-stage coaxial planetary gear reducer that solves the problems set forth in the background above.

In order to achieve the purpose, the invention provides the following technical scheme: a multi-stage coaxial planetary gear reducer comprises a gear ring, a left flange, a right flange, a planetary gear set and a positioning shaft, wherein the left flange and the right flange are arranged at the left end and the right end of the gear ring, the planetary gear set is arranged inside the gear ring and between the left flange and the right flange, the planetary gear set is provided with a planetary gear carrier, a planetary gear, a pin shaft, a roller and a sun gear, the sun gear and the pin shaft are arranged on the planetary gear carrier, the planetary gear is sleeved on the pin shaft, a plurality of rollers are arranged between the planetary gear and the pin shaft, the planetary gear carrier drives the pin shaft to rotate through the rolling of the rollers and the rotation of the pin shaft, and the planetary gear set; the planetary gear sets behind the first-stage planetary gear set are all provided with through holes, a sun gear of the first-stage planetary gear set is fixedly connected with one end of the positioning shaft, and the other end of the positioning shaft penetrates through the through holes of other planetary gear sets behind the first-stage planetary gear set.

A multi-stage coaxial planetary gear reducer comprises a gear ring, a left flange, a right flange, a planetary gear set and a positioning shaft, and is characterized in that the left flange and the right flange are arranged at the left end and the right end of the gear ring, the planetary gear sets are arranged inside the gear ring, the planetary gear set is arranged between the left flange and the right flange, the planetary gear set is provided with a planetary gear carrier, a planet gear, a pin shaft, a roller and a sun gear, the sun gear and the pin shaft are arranged on the planetary gear carrier, the planetary gear is sleeved on the pin shaft, a plurality of rollers are arranged between the planetary gear and the pin shaft, the planetary gear carrier drives the pin shaft to rotate, the planetary gear is driven to rotate by the rolling of the roller and the rotation of the pin shaft, and the; through holes are arranged on other planetary gear sets except the last planetary gear set, one end of the positioning shaft is fixedly connected with a planetary gear carrier of the last planetary gear set, and the other end of the positioning shaft penetrates through the through hole of the planetary gear set in front of the last planetary gear set.

A multi-stage coaxial planetary gear reducer comprises a gear ring, a left flange, a right flange, a planetary gear set and a positioning shaft, and is characterized in that the left flange and the right flange are arranged at the left end and the right end of the gear ring, the planetary gear sets are arranged inside the gear ring, the planetary gear set is arranged between the left flange and the right flange, the planetary gear set is provided with a planetary gear carrier, a planet gear, a pin shaft, a roller and a sun gear, the sun gear and the pin shaft are arranged on the planetary gear carrier, the planetary gear is sleeved on the pin shaft, a plurality of rollers are arranged between the planetary gear and the pin shaft, the planetary gear carrier drives the pin shaft to rotate, the planetary gear is driven to rotate by the rolling of the roller and the rotation of the pin shaft, and the; a multi-stage coaxial planetary gear reducer comprises an input shaft, one end of a driving shaft is fixedly connected with the input shaft, planetary gear sets in a gear ring are provided with through holes, and the other end of a positioning shaft sequentially penetrates through the through holes of a first-stage planetary gear set until the other end of the positioning shaft is inserted into the through holes of a last-stage planetary gear set.

A multi-stage coaxial planetary gear reducer comprises a gear ring, a left flange, a right flange, a planetary gear set and a positioning shaft, and is characterized in that the left flange and the right flange are arranged at the left end and the right end of the gear ring, the planetary gear sets are arranged inside the gear ring, the planetary gear set is arranged between the left flange and the right flange, the planetary gear set is provided with a planetary gear carrier, a planet gear, a pin shaft, a roller and a sun gear, the sun gear and the pin shaft are arranged on the planetary gear carrier, the planetary gear is sleeved on the pin shaft, a plurality of rollers are arranged between the planetary gear and the pin shaft, the planetary gear carrier drives the pin shaft to rotate, the planetary gear is driven to rotate by the rolling of the roller and the rotation of the pin shaft, and the; the multi-stage coaxial planetary gear reducer comprises an output shaft, one end of a driving shaft is fixedly connected with the output shaft, planetary gear sets in a gear ring are provided with through holes, and the other end of a positioning shaft sequentially penetrates through the through holes of a last-stage planetary gear set until the other end of the positioning shaft is inserted into the through hole of a first-stage planetary gear set.

According to the further technical scheme, when the planetary gear set is set to be in 3-stage or 3-stage, a plurality of rollers are used between the planet gear and the pin shaft; when the planetary gear set is set to 3 stages or more, the rollers are still used from the first-stage planetary gear set to the planetary gear set in 3 stages, and the rollers of the planetary gear set in 3 stages or more are changed to the rolling bars.

The beneficial effects are that: the invention can greatly reduce the deviation of the multi-stage planetary gear set during transmission when the speed reducer is used under the series connection action of the positioning shafts.

Drawings

FIG. 1: the invention has a structure schematic diagram.

FIG. 2: the invention discloses a structural schematic diagram of a planetary gear set.

FIG. 3: the structure of embodiment 2 of the invention is schematically shown.

FIG. 4: the structure of embodiment 3 of the invention is schematically shown.

FIG. 5: the structure of embodiment 4 of the invention is schematically illustrated.

FIG. 6: the invention discloses a local enlarged view of a planet gear and a pin shaft.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention;

referring to fig. 1-2, a multi-stage coaxial planetary gear reducer includes a ring gear 1, a left flange 2, a right flange 3, a planetary gear set 4 and a positioning shaft 5, the left flange 2 and the right flange 3 are fixedly disposed at the left and right ends of the ring gear, the planetary gear set 4 is disposed inside the ring gear 1, the planetary gear set 4 is disposed between the left flange 2 and the right flange 3, the planetary gear set 4 is provided with a planetary gear carrier 41, a planetary gear 42, a pin shaft 43, a roller 44 and a sun gear 45, the sun gear 45 and the pin shaft 43 are fixedly disposed on the planetary gear carrier 41, the planetary gear carrier 42 is sleeved on the pin shaft 43, a plurality of rollers 44 are disposed between the planetary gear 42 and the pin shaft 43, the planetary gear carrier 41 drives the pin shaft 43 to rotate, and the rollers 44 roll and the pin shaft 43 drives the planetary gear. The planetary gear set 4 includes at least a first-stage planetary gear set 46 and a last-stage planetary gear set 47;

the planetary gear sets 4 behind the first-stage planetary gear set 46 are all provided with through holes 48, a sun gear 45 of the first-stage planetary gear set 46 is fixedly connected with one end of the positioning shaft 5, and the other end of the positioning shaft 5 penetrates through the through holes 48 of other planetary gear sets behind the first-stage planetary gear set 46;

the multi-stage coaxial planetary gear reducer connects a plurality of planetary gear sets 4 in series through the positioning shaft 5, so that in the using process of the reducer, a motor is connected with the first-stage planetary gear set 46 through an input shaft, the rotating speed of the motor after transmission of the planetary gear sets is reduced, the rotating speed of the last-stage planetary gear set 47 is reduced, the output shaft is connected with the last-stage planetary gear set 47, and the deviation generated by transmission of the reducer is smaller.