阅读说明：本技术 一种新型行星减速器 (Novel planetary reducer ) 是由 唐昌宁 杨晓东 于 2020-05-15 设计创作，主要内容包括：本发明公开了一种新型行星减速器,包括输入轴和若干行星轴,输入轴上设置有太阳轮组,本发明具备更优的输出扭矩能力,并能得到很大的减速比,通过把力分散到更多的行星轮上,提高减速器的承载能力,同时本发明依然具有紧凑的结构,满足太阳轮A、齿圈B和齿圈E的齿数Z<Sub>A</Sub>、Z<Sub>B</Sub>和Z<Sub>C</Sub>均为行星轴数目的整数倍,可保证同一根行星轴上的行星轮D与行星轮C相位差完全一致,并具备良好的均载特性,输入输出关系不唯一,可根据需要设计出满足自己需求的新型行星减速器,行星轮C与行星轮D相位差相等,不需要计算各个行星轮C与行星轮D的相位差,配齿方便、简洁,节约了成本,提高了生产效率。(The invention discloses a novel planetary reducer, which comprises an input shaft and a plurality of planetary shafts, wherein the input shaft is provided with a sun wheel set, the novel planetary reducer has better output torque capacity, can obtain a great reduction ratio, improves the bearing capacity of the reducer by dispersing force on more planetary wheels, has a compact structure, and meets the requirement of tooth number Z of a sun wheel A, a gear ring B and a gear ring E A 、Z B And Z C Be the integral multiple of planet axle number, can guarantee that planet wheel D on same root planet axle is identical with planet wheel C phase difference completely to possess good equal load characteristic, the input-output relation is not unique, can design the novel planetary reducer who satisfies oneself demand as required, planet wheel C equals with planet wheel D phase difference, need not calculate the phase difference of each planet wheel C and planet wheel D, it is convenient, succinct to join in marriage the toothThe cost is saved, and the production efficiency is improved.)

1. A novel planetary reducer comprises an input shaft (7) and a plurality of planetary shafts (8), and is characterized in that: be provided with the sun gear group on input shaft (7), a plurality of planet axle (8) middle parts all are provided with planet wheel C (3) and both ends all are provided with planet wheel D (4), input shaft (7) peripheral survey is provided with ring gear B (2), and ring gear B (2) both sides all are provided with ring gear E (5), float between sun gear A (1) and ring gear B (2) and install and be used for carrying out spacing support ring (6) to planet axle (8), ring gear B (2) and a plurality of planet wheel C (3) inner gearing, ring gear E (5) and a plurality of its homonymy planet wheel D (4) inner gearing, sun gear group and planet wheel C (3) or planet wheel D (4) meshing, one of them fixed mounting is selected in ring gear B (2) and ring gear E (5) the assembling process.

2. The novel planetary reducer according to claim 1, wherein: the sun wheel set comprises a sun wheel A (1), the sun wheel A (1) is installed on the input shaft (7), and the sun wheel A (1) is meshed with the planet wheel C (3).

3. The novel planetary reducer according to claim 1, wherein: the sun wheel set comprises two sun wheels A (1), the two sun wheels A (1) are installed on the input shaft (7), and the two sun wheels A (1) are respectively meshed with a plurality of planet wheels D (4) on the same side.

4. The novel planetary reducer according to claim 1, wherein: and the gear ring B (2) is fixedly installed in the assembling process.

5. The novel planetary reducer according to claim 1, wherein: the gear ring E (5) is fixedly mounted in the assembly process.

6. The novel planetary reducer according to claim 5, wherein: and a rocker arm (9) is arranged on the outer side of the gear ring B (2).

7. The novel planetary reducer according to claim 1, wherein: the tooth numbers of the sun gear A (1), the gear ring B (2) and the gear ring E (5) are integral multiples of the number of the planet shafts (8).

Technical Field

The invention relates to a speed reducer, in particular to a novel planetary speed reducer.

Background

The traditional planetary reducer is mostly accelerated and decelerated step by step and shunted at the same stage. The characteristics of large output torque, small space volume and the like required in the aviation field lead the prior planetary reducer to be insufficient in output torque exposure in application.

In the NGWN type mechanism of the planetary reducer, the reduction ratio is increased, the structure is compact, the volume is reduced, and the NGWN type mechanism is accepted by the aviation field. But the bearing capacity is insufficient and the output torque is limited.

The defects brought by a gear speed increaser system are not overcome, and the capability of shunting large torque in the system is not realized.

Disclosure of Invention

The present invention is directed to a novel planetary reducer to solve the problems set forth in the background art.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a novel planetary reducer, includes input shaft and a plurality of planet axle, be provided with the sun gear group on the input shaft, a plurality of planet axle middle parts all are provided with planet wheel C and both ends and all are provided with planet wheel D, the input shaft peripheral survey is provided with ring gear B, and ring gear B both sides all are provided with ring gear E, float between sun gear A and the ring gear B and install and be used for carrying out spacing support ring to the planet axle, ring gear B and a plurality of planet wheel C internal gearing, ring gear E and a plurality of its homonymy the planet wheel D internal gearing, sun gear group and planet wheel C or the meshing of planet wheel D, one of them fixed mounting is selected to ring gear B and ring gear E in assembly process.

The sun wheel set comprises a sun wheel A, the sun wheel A is arranged on the input shaft, and the sun wheel A is meshed with the planet wheel C.

The sun wheel set comprises two sun wheels A, the two sun wheels A are both arranged on the input shaft, and the two sun wheels A are respectively meshed with a plurality of planet wheels D on the same side.

And the gear ring B is fixedly installed in the assembling process.

The ring gear E is fixedly mounted during assembly.

And a rocker arm is arranged on the outer side of the gear ring B.

The tooth numbers of the sun gear A, the gear ring B and the gear ring E are integral multiples of the number of the planet shafts.

The invention has the beneficial effects that:

1. the invention has better output torque capacity, can obtain a large reduction ratio, improves the bearing capacity of the reducer by dispersing force on more planet wheels, and has a compact structure.

2. The number of teeth Z of the sun gear A, the gear ring B and the gear ring E needs to be satisfied_A、Z_BAnd Z_CThe phase difference between the planet wheel D and the planet wheel C on the same planet shaft can be ensured to be completely consistent, and the device has good load-balancing characteristic.

3. The input-output relationship of the planetary speed reducer is not unique, and a novel planetary speed reducer meeting the requirements of the planetary speed reducer can be designed according to the requirements.

4. According to the invention, the phase difference between the planet wheel C and the planet wheel D is equal, the phase difference between each planet wheel C and the planet wheel D does not need to be calculated, the gear matching is convenient and simple, the cost is saved, and the production efficiency is improved.

Drawings

FIG. 1 is a schematic diagram of a prior art NGWN I type transmission;

FIG. 2 is a schematic diagram of a transmission according to a first embodiment of the present invention;

FIG. 3 is a schematic structural diagram according to a first embodiment of the present invention;

FIG. 4 is a schematic diagram of the transmission according to the second embodiment of the present invention;

fig. 5 is a schematic structural diagram of a second embodiment of the present invention.

In the figure, 1-sun gear A, 2-gear ring B, 3-planet gear C, 4-planet gear D, 5-gear ring E, 6-support ring, 7-input shaft, 8-planet shaft, 9-rocker arm, 10-sun gear f, 11-gear ring g, 12-planet gear h, 13-planet gear i, 14-gear ring j and 15-planet carrier k.

Detailed Description

The technical solutions of the present invention are further described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following.

Referring to fig. 1 of the drawings, a drawing,

the sun gear f10, the planet carrier k15, the ring gear g11 and the ring gear j14 are all free to rotate, i.e. their rotational degrees of freedom are not limited, and the NGWNI-type structure works as long as any of the above parts is fixed during assembly.

Now, the ring gear g11 is fixed, the sun gear f10 is used as an input end, and the transmission path is as follows:

the gear ring g11 is fixed, the input of the sun gear f10 is transmitted to the external meshing planetary gear h12, then transmitted to the planetary gear i13, and finally output through the internal meshing gear ring j14, and the structure and the transmission path of the gear ring g11 show that the gear ring g still has the capability of shunting a large moment in a system.

Through combing analysis, the final output capacity of the conventional NGWN I type planetary reducer is greatly influenced by a final-stage gear ring. The bearing capacity is not effectively improved. By distributing the force over more planet wheels, the bearing capacity of the reducer is improved.