CN211398501U

CN211398501U - Independent single-stage or multi-stage planetary gear reducer

Info

Publication number: CN211398501U
Application number: CN201922341574.6U
Authority: CN
Inventors: 杨海岳; 张华�
Original assignee: ZHEJIANG ZHONGJIAN TECHNOLOGY CO LTD
Current assignee: ZHEJIANG ZHONGJIAN TECHNOLOGY CO LTD
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2020-09-01
Anticipated expiration: 2029-12-23

Abstract

The utility model discloses an independent type single-stage or multistage planetary gear reducer, including casing, planet carrier, planetary gear, input gear shaft, compress tightly the lid, the casing on be equipped with the casing ring gear and be equipped with in both sides and degrade the step, be equipped with alternate distribution's planetary support post and planet wheel axle on the planet carrier, compress tightly the lid and connect on planetary support post and planet wheel axle, the last sun gear that is equipped with of input gear shaft and set up and covering compressing tightly, planetary gear corresponds the cover and establishes at planet wheel axle, planetary gear's both sides correspondence is equipped with the cover and goes up the packing ring about planet wheel is epaxial, control the packing ring correspondence and set up and carry out axial positioning on the degradation step of casing both sides, planetary gear's outer lane and casing ring gear meshing. After the structure is adopted, the structure has the advantages of simple and convenient assembly, low requirement on matching precision, good flexibility and universality, capability of randomly combining the reduction stages and the like.

Description

Independent single-stage or multi-stage planetary gear reducer

Technical Field

The utility model relates to a reduction gears technical field, but especially a stand alone type single-stage or multistage planetary gear reducer of multistage arbitrary combination.

Background

The planetary gear reducer is an industrial product with wide application, and comprises a planet carrier, a planetary gear, an outer gear ring and a sun gear, wherein the reduction stage number is 2 or 3 due to the structure reason, and compared with other reduction mechanisms, the planetary gear reducer has the characteristics of high rigidity, high transmission efficiency, small volume, light weight, high bearing capacity, stable operation, long service life and the like. However, the existing planetary gear reducer has the following problems in the production and use processes: firstly, multistage speed reduction is installed respectively on same outer ring, and the cooperation required precision is high, and each level of speed reduction can not independently become an organic whole and carry out multistage arbitrary combination. And secondly, each stage of speed reduction is not axially positioned and is easy to move, so that the friction resistance is increased, and the noise of the box body is increased. Thirdly, most of the planetary gear reducers are 2-stage or 3-stage, if the design can not meet the speed reduction requirement, the speed reduction can not be realized by adding one more stage, the length of an outer gear ring needs to be redesigned, the flexibility is not enough, and the universality is poor. Aiming at the problems, many manufacturers and acquaintances develop and develop the products, but no satisfactory products are produced.

Disclosure of Invention

For overcoming the above-mentioned defect that prior art exists, the utility model aims at providing an assembly simple and convenient, cooperation required precision is low, flexibility and general good, the independent type single-stage or multistage planetary gear reducer that the reduction progression can make up wantonly on the basis of guaranteeing current product advantage.

The utility model provides a technical scheme that above-mentioned technical problem adopted, it includes casing, planet carrier, planetary gear, input gear shaft, compresses tightly the lid, the casing on be equipped with the casing ring gear and correspond in both sides and be equipped with the degradation step, be equipped with alternate distribution's planetary support post and planet wheel axle on the planet carrier, compress tightly the lid and correspond and connect on planetary support post and planet wheel axle, the last sun gear that is equipped with of input gear shaft and set up and covering compressing tightly, planetary gear corresponds the cover and establishes at planet wheel axle, planetary gear's both sides correspondence is equipped with the cover and overlaps the epaxial packing ring of controlling of planet wheel, control the packing ring correspondence and set up on the degradation step of casing both sides, realize the axial positioning to planetary gear and planet carrier, planetary gear's outer lane and casing ring gear.

The utility model discloses a further scheme, the center of planet carrier is equipped with the interior tooth cover of output with output shaft or next stage reduction gear input shaft.

The utility model discloses a further scheme, planetary support column and planet carrier structure as an organic whole and be equipped with the support column centre bore, the rivet passes the support column centre bore and compresses tightly the lid fixed orifices and will compress tightly the lid riveting as an organic whole.

After adopting above-mentioned structure, compare with prior art and have following advantage and effect: firstly, as the compressing cover is correspondingly connected to the planetary support column and the planetary wheel shaft, the input gear shaft is provided with the sun gear and arranged on the compressing cover, the planetary gear is correspondingly sleeved on the planetary wheel shaft, the two sides of the planetary gear are correspondingly provided with the left and the right gaskets sleeved on the planetary wheel shaft, the outer rings of the left and the right gaskets are correspondingly arranged on the degradation steps at the two sides of the shell, each stage of speed reduction is independent and integrated, the axial positioning of the planetary gear and the planetary carrier can be realized, the multi-stage speed reduction can be combined at will, the flexibility and the universality are good, and; secondly, because can carry out axial positioning through the packing ring, the cooperation precision requirement is low, and the axial does not move, and frictional resistance is little, and the box noise is light. And thirdly, when the multi-stage combination is used, the connection is simple and convenient. Fourthly, can be widely applied to garden instrument, electric tool, intelligent product and the step motor and the servo motor of electron trade, the practicality is strong, and the range of application is wide.

Drawings

Fig. 1 is a schematic view of the exploded structure of the present invention.

Fig. 2 is a schematic view of the structure of the present invention.

Fig. 3 is a schematic view of the cross-sectional structure a-a of fig. 2 according to the present invention.

The planetary gear set comprises 1 rivet, 2 planet carriers, 3 output inner gear sleeves, 4 planetary support columns, 5 support column central holes, 6 planetary gear shafts, 7 gaskets, 8 planetary gears, 9 shells, 10 shell inner gear rings, 11 stepped stages, 12 sun gears, 13 input gear shafts, 14 compression covers, 15 compression cover fixing holes and 16 blind holes.

Detailed Description

As shown in fig. 1, fig. 2 and fig. 3, the present invention relates to a single-stage or multi-stage planetary gear reducer, which comprises a casing 9, a planet carrier 2, a planetary gear 8, an input gear shaft 13, and a pressing cover 14, wherein the casing 9 is provided with a gear ring 10 inside the casing and degradation steps 11 on two sides, the planet carrier 2 is provided with planetary support columns 4 and planetary shafts 6 alternately distributed, the pressing cover 14 is pressed on the planetary support columns 4 and the planetary shafts 6 correspondingly through blind holes 16, the input gear shaft 13 is provided with a sun gear 12 and is arranged on the pressing cover 14, the planetary gear 8 is correspondingly sleeved on the planetary shafts 6, two sides of the planetary gear 8 are correspondingly provided with left and right washers 7 sleeved on the planetary shafts 6, the left and right washers 7 are correspondingly arranged on the degradation steps 11 on two sides of the casing 9, so as to axially position the planetary gear 8 and the planet carrier, the outer ring of the planet gear 8 meshes with the inner ring gear 10 of the housing, and the inner ring of the planet gear 8 meshes with the sun gear 12.

In order to facilitate output connection, an output inner gear sleeve 3 connected with an output shaft or an input shaft of a next-stage speed reducer is arranged at the center of the planet carrier 2.

In order to ensure that the fixed connection is firm and reliable, the planetary support column 4 and the planet carrier 2 are of an integral structure and are provided with a support column central hole 5, and the rivet 1 penetrates through the support column central hole 5 and the pressing cover fixing hole 15 to rivet the pressing cover 14 into a whole.

The above description is only the specific embodiment of the present invention, and is not intended to limit the present invention in any form, and the present invention does not depart from the technical solution of the present invention, and the made simple modification, equivalent change or modification all fall into the protection scope of the present invention.

Claims

1. The utility model provides a stand alone type single stage or multistage planetary gear reducer, includes casing (9), planet carrier (2), planetary gear (8), input gear axle (13), compresses tightly lid (14), characterized by: the planetary gear type planetary gear set is characterized in that a shell inner gear ring (10) is arranged on a shell (9), degradation steps (11) are correspondingly arranged on two sides of the shell inner gear ring, planetary support columns (4) and planetary gear shafts (6) which are alternately distributed are arranged on a planetary carrier (2), a pressing cover (14) is correspondingly connected to the planetary support columns (4) and the planetary gear shafts (6), a sun gear (12) is arranged on an input gear shaft (13) and is arranged on the pressing cover (14), the planetary gear (8) is correspondingly sleeved on the planetary gear shafts (6), left and right gaskets (7) sleeved on the planetary gear shafts (6) are correspondingly arranged on two sides of the planetary gear (8), the left and right gaskets (7) are correspondingly arranged on the degradation steps (11) on two sides of the shell (9), axial positioning of the planetary gear (8) and the planetary carrier (2) is achieved, an outer ring of the planetary gear (8) is meshed with the shell inner gear ring (10.

2. A freestanding single or multi-stage planetary gear reducer as claimed in claim 1, wherein: and an output inner gear sleeve (3) connected with an output shaft or an input shaft of a next-stage speed reducer is arranged at the center of the planet carrier (2).

3. A freestanding single or multi-stage planetary gear reducer as claimed in claim 1 or 2, wherein: planetary support column (4) and planet carrier (2) structure as an organic whole and be equipped with support column centre bore (5), rivet (1) pass support column centre bore (5) and compress tightly lid fixed orifices (15) will compress tightly lid (14) riveting as an organic whole.