CN210770054U

CN210770054U - Two-stage planetary reducer

Info

Publication number: CN210770054U
Application number: CN201921678920.3U
Authority: CN
Inventors: 彭维辉
Original assignee: Zhejiang Saiya Intelligent Transmission Technology Co ltd
Current assignee: Zhejiang Saiya Intelligent Transmission Technology Co ltd
Priority date: 2019-10-09
Filing date: 2019-10-09
Publication date: 2020-06-16
Anticipated expiration: 2029-10-09

Abstract

The utility model discloses a two-stage planetary reducer, including casing, rear end cap, output shaft, one-level planet carrier and second grade planet carrier, the rear end cap passes through hexagon socket head cap bolt to be fixed on the casing, and the junction of output shaft and casing is equipped with bearing and output shaft lower bearing on the output shaft, one-level planet carrier, second grade planet carrier setting all install planetary gear in the inside of casing on one-level planet carrier, the second grade planet carrier, through the transmission between planetary gear and the planet carrier for the reduction ratio of output shaft end is 1/64, has reached design and operation requirement, and whole transmission is stable simultaneously, and the installation is convenient with the dismantlement.

Description

Two-stage planetary reducer

Technical Field

The utility model relates to a two-stage planetary reducer.

Background

A planetary reducer (planetary reducer) is an industrial product with wide application, and can reduce the rotating speed of a motor and increase output torque. The planetary reducer can be used as a matched component for industries such as hoisting, digging, transportation, building and the like.

Different planetary reducer can reach different speed ratio, and the same speed ratio can be realized, reach through different structures, and different structures have different characteristics.

At the exit toll gate of the highway, there is a barrier gate, the opening and closing of the barrier gate controls the passing and passing of the automobile, the opening and falling of the barrier gate needs to be stable and flexible, and the collision with the automobile is prevented, meanwhile, the opening of the barrier gate is unidirectional, the motor needs to have a larger torque to execute when the rising and falling of the barrier gate are controlled, and therefore, a special speed reducer is needed to execute the operation.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a convenient to use, easy operation, the transmission is stable, and structural strength is high, and antitorque rigidity is strong, can realize speed reduction ratio 1/64, and it is effectual to slow down, has the practicality and uses the two-stage planetary reducer of extensive nature.

In order to solve the above problem, the utility model adopts the following technical scheme:

the utility model provides a two-stage planetary reducer, includes casing, rear end cap, output shaft, one-level planet carrier and second grade planet carrier, and the rear end cap is fixed on the casing, the junction of output shaft and casing is equipped with bearing on the output shaft and bearing under the output shaft, one-level planet carrier, second grade planet carrier set up the inside at the casing, the lower extreme and the second grade planet carrier fixed connection of output shaft, the lower extreme of one-level planet carrier is equipped with one-level planetary gear, and the lower extreme of second grade planet carrier is equipped with second grade planetary gear, the lower extreme of one-level planet carrier and second grade planet carrier all is fixed with three planet round pin axle, and one-level planetary gear and second grade planetary gear all fix at planet round pin epaxially, the upper end of.

The utility model discloses a setting for at one-level planetary gear, second grade planetary gear, transmission shaft, one-level planet carrier and second grade planet carrier, through transmission layer upon layer, realized planetary reducer 1/64's reduction ratio, reached its design and operation requirement, the structure of its stack formula simultaneously for its transmission stability more, also convenient to detach and installation have the universality of practicality and use simultaneously.

Preferably, the lower extreme of casing and the relative position of rear end cap contact are equipped with the screw hole, the screw hole is four, and even distribution is on casing and rear end cap, all be equipped with an interior hex bolts in the screw hole.

The arrangement is convenient for fixing the sun gear at the end of the motor and adjusting the central position of the sun gear after fixing.

Preferably, the upper end of the shell is provided with a mounting groove, and the bearing on the output shaft is fixed in the mounting groove.

This setting is convenient for the installation of output shaft upper bearing, fixes a position the output shaft through output shaft upper bearing simultaneously, guarantees its certain straightness that hangs down.

Preferably, the upper end of the output shaft is provided with an output shaft positioning groove, and a shaft elastic check ring is arranged in the output shaft positioning groove.

This setting has realized the location to bearing on the output shaft, prevents that bearing on the output shaft from producing the displacement at the in-process that uses.

Preferably, a circlip for hole is provided inside the housing, and one side of the circlip for hole is in contact with the output shaft lower bearing.

This setting has realized spacing to output shaft lower bearing, prevents that output shaft lower bearing from the displacement appearing at the in-process that uses.

Preferably, a stainless steel sheet is arranged between the rear end cover and the primary planetary gear.

This setting has prevented to produce direct contact between one-level planetary gear and the rear end cap, reduces the loss that the friction brought.

Preferably, the shell and the rear end cover are of thickened design.

The anti-torsion rigidity of the planetary reducer is enhanced, and the planetary reducer is not easy to damage in use.

The utility model has the advantages that: convenient to use, easy operation, the transmission is stable, and structural strength is high, and anti-torsion rigidity is strong, can realize speed reduction ratio 1/64, and it is effectual to slow down, has the practicality and the universality of use.

Drawings

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be briefly described below, but the scope of the present invention is not limited thereto.

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic cross-sectional view of the present invention;

fig. 3 is a schematic cross-sectional view of the present invention;

fig. 4 is an internal schematic view of the present invention;

fig. 5 is a schematic view of the installation of the hexagon socket head cap screw of the present invention;

the planetary gear set comprises a shell 1, a rear end cover 2, an output shaft 3, an output shaft upper bearing 4, an elastic retainer ring for a shaft 5, an output shaft lower bearing 6, an elastic retainer ring for a hole 7, a secondary planet carrier 8, a planet pin shaft 9, a primary planet carrier 10, a transmission shaft 11, a threaded hole 12, a stainless steel sheet 13, a secondary planet gear 14, an output shaft positioning groove 15, an inner hexagon bolt 16, a sun gear 17 and a primary planet gear 18.

Detailed Description

Referring to fig. 1 to 5, a two-stage planetary reducer includes a casing 1, a rear end cover 2, an output shaft 3, a first-stage planet carrier 10 and a second-stage planet carrier 8, the rear end cover 2 is fixed on the casing 1, an output shaft upper bearing 4 and an output shaft lower bearing 6 are arranged at the joint of the output shaft 3 and the casing 1, the first-stage planet carrier 10 and the second-stage planet carrier 8 are arranged inside the casing 1, the lower end of the output shaft 3 is fixedly connected with the second-stage planet carrier 8, a first-stage planet gear 18 is arranged at the lower end of the first-stage planet carrier 10, a second-stage planet gear 14 is arranged at the lower end of the second-stage planet carrier 8, three planet pins 9 are fixed at the lower ends of the first-stage planet carrier 10 and the second-stage planet carrier 8, the first-stage planet gear 18 and, the upper end of the transmission shaft 11 is connected with a secondary planetary gear 14.

Threaded holes 12 are formed in the opposite positions, in contact with the rear end cover 2, of the lower end of the shell 1, the number of the threaded holes 12 is four, the threaded holes 12 are evenly distributed in the shell 1 and the rear end cover 2, and an inner hexagon bolt 16 is arranged in each threaded hole 12.

The upper end of the shell 1 is provided with an installation groove, and a bearing on the output shaft is fixed in the installation groove.

An output shaft positioning groove 15 is formed in the upper end of the output shaft 3, and a shaft elastic check ring 5 is arranged in the output shaft positioning groove 15.

The casing 1 is internally provided with a circlip for hole 7, and one side of the circlip for hole 7 is in contact with the output shaft lower bearing 6.

A stainless steel sheet 13 is arranged between the rear end cover 2 and the primary planet gear 18.

The shell 1 and the rear end cover 2 adopt a thickened design.

The utility model discloses during the use, insert the sun gear 17 of motor one end between the one-level planetary gear, accomplish the tooth interlock, fix planetary reducer on the motor through the rear end cover, the motor drives sun gear and rotates, sun gear drives one-level planetary gear and rotates, one-level planetary gear drives the transmission shaft through the one-level planet carrier and rotates, the transmission shaft drives second grade planetary gear and rotates, second grade planetary gear drives the rotation of second grade planet carrier, the second grade planet carrier drives the synchronous drive of output shaft.

The transmission between the sun gear and the primary planet gear of the utility model completes the first speed reduction; the transmission between the transmission shaft and the secondary planet gear completes the second speed reduction, and the 1/64 speed reduction ratio is realized after the two speed reductions are completed.

The utility model discloses a casing and planetary gear junction are equipped with the ring gear, and the number of teeth of ring gear is 84, the number of teeth of planetary gear is 36, and the number of teeth of the sun gear is 12, and the modulus is 0.6, and the pressure angle is 20.

The above is only the specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the creative work should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims

1. A two-stage planetary reducer characterized in that: including casing, rear end cap, output shaft, one-level planet carrier and second grade planet carrier, the rear end cap is fixed on the casing, the junction of output shaft and casing is equipped with output shaft upper bearing and output shaft lower bearing, one-level planet carrier, second grade planet carrier set up the inside at the casing, the lower extreme and the second grade planet carrier fixed connection of output shaft, the lower extreme of one-level planet carrier is equipped with one-level planetary gear, and the lower extreme of second grade planet carrier is equipped with second grade planetary gear, the lower extreme of one-level planet carrier and second grade planet carrier all is fixed with three planet round pin axle, and one-level planetary gear and second grade planetary gear all fix at the planet round pin epaxially, the upper end of one-level planet carrier is equipped.

2. A two-stage planetary reduction gear according to claim 1, characterized in that: the lower extreme of casing and the relative position of rear end cap contact are equipped with the screw hole, the screw hole is four, and even distribution is on casing and rear end cap, all be equipped with an interior hexagon bolt in the screw hole.

3. A two-stage planetary reduction gear according to claim 1, characterized in that: the upper end of the shell is provided with an installation groove, and the bearing on the output shaft is fixed in the installation groove.

4. A two-stage planetary reduction gear according to claim 1, characterized in that: the upper end of the output shaft is provided with an output shaft positioning groove, and a shaft elastic check ring is arranged in the output shaft positioning groove.

5. A two-stage planetary reduction gear according to claim 1, characterized in that: and a hole elastic check ring is arranged in the shell, and one side of the hole elastic check ring is in contact with the lower bearing of the output shaft.

6. A two-stage planetary reduction gear according to claim 1, characterized in that: and a stainless steel sheet is arranged between the rear end cover and the primary planetary gear.

7. A two-stage planetary reduction gear according to claim 1, characterized in that: the shell and the rear end cover adopt a thickening design.