阅读说明：本技术 一种双轴同心反转减速装置 (Double-shaft concentric reversal speed reducing device ) 是由 尹永清 王圣林 张士明 魏秦文 孙宁武 王瑞 肖鑫源 尹永奇 祖宝华 于 2019-08-20 设计创作，主要内容包括：本申请提供一种双轴同心反转减速装置,包括第一太阳轴和第二太阳轴；第一太阳轴上连接有第一行星减速机构；第一行星减速机构包括大齿圈和大行星架；第二太阳轴上连接有第二行星减速机构；第二行星减速机构包括小齿圈和小行星架；大行星架与小齿圈固定连接；大齿圈与小行星架固定连接；大齿圈与小行星架还与减速器壳体固定连接。根据本申请实施例提供的技术方案,通过大行星架与小齿圈固定连接,大齿圈与小行星架固定连接,第一太阳轴和第二太阳轴反向输入,大齿圈处实现动力合并,朝一个方向转动,达到双轴动力耦合的作用。(The application provides a double-shaft concentric reversal speed reduction device, which comprises a first sun shaft and a second sun shaft; the first sun shaft is connected with a first planet speed reducing mechanism; the first planetary reduction mechanism comprises a large gear ring and a large planet carrier; the second sun shaft is connected with a second planetary speed reducing mechanism; the second planetary reduction mechanism comprises a small gear ring and a small planet carrier; the large planet carrier is fixedly connected with the small gear ring; the big gear ring is fixedly connected with the small planet carrier; the big gear ring and the small planet carrier are also fixedly connected with the reducer shell. According to the technical scheme provided by the embodiment of the application, the large planet carrier is fixedly connected with the small gear ring, the large gear ring is fixedly connected with the small planet carrier, the first sun shaft and the second sun shaft are reversely input, power combination is realized at the large gear ring, the large gear ring rotates towards one direction, and the effect of double-shaft power coupling is achieved.)

1. A double-shaft concentric counter-rotating reduction gear, characterized by comprising a first sun shaft (100) and a second sun shaft (200); a first planetary speed reducing mechanism is connected to the first sun shaft (100); the first planetary reduction mechanism comprises a large gear ring (110) and a large planet carrier (120); a second planetary reduction mechanism is connected to the second sun shaft (200); the second planetary reduction mechanism comprises a small gear ring (210) and a small planet carrier (220); the large planet carrier (120) is fixedly connected with the small gear ring (210); the large gear ring (110) is fixedly connected with the small planet carrier (220); the large gear ring (110) and the small planet carrier (220) are also fixedly connected with the reducer shell (300).

2. The double-shaft concentric counter-rotating reduction device according to claim 1, wherein the large planet carrier (120) is fixedly connected with the small ring gear (210) through a large planet cover plate (130); a large planet shaft (141) is arranged between the large planet carrier (120) and the large planet cover plate (130); the large planet shaft (141) is connected with a corresponding large planet wheel (140) through a first bearing (142); the large planetary cover plate (130) is positioned on one side of the large planetary wheel (140) close to the second planetary reduction mechanism.

3. The double-shaft concentric counter-rotating reduction device according to claim 2, wherein a second bearing (121) is provided between the large planet carrier (120) and the first sun shaft (100); and a third bearing (122) is arranged between the large planet carrier (120) and the speed reducer shell (300).

4. The double-shaft concentric counter-rotating reduction device according to claim 2, wherein the reducer case (300) is provided on a side of the large carrier (120) away from the second planetary reduction mechanism; the speed reducer shell (300) is provided with a mounting hole (310) for connecting with the outside.

5. The biaxial concentric counter-rotating reduction device according to claim 2, wherein the second planetary reduction mechanism further comprises a minor planetary cover plate (230); a small planet shaft (241) is connected between the small planet cover plate (230) and the small planet carrier (220); the small planet shaft (241) is connected with a small planet wheel (240) through a fourth bearing (242); the small planetary cover plate (230) is positioned on one side of the small planetary wheel (240) close to the large planetary cover plate (130); a fifth bearing (231) is arranged on the minor planet cover plate (230); the outer ring of the fifth bearing (231) is in interference connection with the big planet cover plate (130).

6. The double-shaft concentric counter-rotating reduction device according to claim 1, wherein a sixth bearing (250) is further provided on the second sun shaft (200); the sixth bearing (250) is located between the second sun shaft (200) and the small planet carrier (220).

7. The double-shaft concentric counter-rotating reduction device according to claim 1, wherein the reduction gear case (300) is provided on a side of the small carrier (220) away from the first planetary reduction mechanism.

8. The double-shaft concentric counter-rotating reduction device according to claim 1, wherein the first sun shaft (100) and the second sun shaft (200) are coaxially installed.

Technical Field

The application relates to the technical field of gear transmission, in particular to a double-shaft concentric reversal speed reducing device.

Background

The planetary gear reducer is usually installed on a stepping motor and a servo motor, power is transmitted to a planetary mechanism through a sun shaft, the planetary mechanism comprises a plurality of planetary gears, when power is transmitted, the planetary gears are meshed with a sun gear and an inner gear ring, the planetary gears revolve around the sun gear while rotating, the plurality of planetary gears share the transmitted power, power split is realized, and finally the power is output by an output mechanism to play the roles of reducing speed and increasing torque. Therefore, the planetary gear reducer is widely applied to various fields of machinery, textile, building, metallurgy and the like.

The planet gear reducer uses the unipolar drive more at present, in fixed sun gear, planet carrier and the bull gear, through bull gear or planet carrier output power, when this kind of reduction gear is used for the occasion that needs big power, needs motor power great, reduction gear manufacturing cost and motor use cost increase at double.

Disclosure of Invention

In view of the above-mentioned drawbacks and deficiencies of the prior art, it is desirable to provide a dual-axis concentric counter-rotating reduction apparatus.

The application provides a double-shaft concentric reversal speed reduction device, which comprises a first sun shaft and a second sun shaft; the first sun shaft is connected with a first planet speed reducing mechanism; the first planetary reduction mechanism comprises a large gear ring and a large planet carrier; the second sun shaft is connected with a second planetary speed reducing mechanism; the second planetary reduction mechanism comprises a small gear ring and a small planet carrier; the large planet carrier is fixedly connected with the small gear ring; the big gear ring is fixedly connected with the small planet carrier; the big gear ring and the small planet carrier are also fixedly connected with the reducer shell.

Further, the big planet carrier is fixedly connected with the small gear ring through a big planet cover plate; a large planet shaft is arranged between the large planet carrier and the large planet cover plate; the big planet shaft is connected with a corresponding big planet wheel through a first bearing; the big planet cover plate is positioned on one side of the big planet wheel close to the second planet speed reducing mechanism.

Further, a second bearing is arranged between the large planet carrier and the first sun shaft; and a third bearing is arranged between the large planet carrier and the speed reducer shell.

Furthermore, a speed reducer shell is arranged on one side, away from the second planetary speed reducing mechanism, of the large planet carrier; the reducer shell is provided with a mounting hole for connecting with the outside.

Furthermore, the second planetary reduction mechanism also comprises a minor planet cover plate; a small planet shaft is connected between the small planet cover plate and the small planet carrier; the small planet shaft is connected with a small planet wheel through a fourth bearing; the minor planet cover plate is positioned on one side of the minor planet wheel close to the major planet cover plate; a fifth bearing is arranged on the minor planet cover plate; and the outer ring of the fifth bearing is in interference connection with the big planet cover plate.

Furthermore, a sixth bearing is arranged on the second sun shaft; the sixth bearing is located between the second sun shaft and the minor planet carrier.

Furthermore, a speed reducer shell is arranged on one side, away from the first planetary speed reducing mechanism, of the small planet carrier.

Further, the first sun shaft and the second sun shaft are coaxially installed.

The application has the advantages and positive effects that: the big planet carrier is fixedly connected with the small gear ring, the big gear ring is fixedly connected with the small planet carrier, the first sun shaft and the second sun shaft are reversely input, power combination is realized at the big gear ring, the big gear ring rotates in one direction, and the effect of double-shaft power coupling is achieved.

The speed reducer shell is fixed, and when the single motor is driven by a single shaft, the function of equal rotating speed reverse output can be realized.

Drawings

Fig. 1 is a schematic structural diagram of a biaxial concentric reversal deceleration device provided in an embodiment of the present application;

fig. 2 is a schematic structural diagram of a cross-sectional view of a first planetary reduction mechanism of a biaxial concentric reversal deceleration device according to an embodiment of the present application.

The text labels in the figures are represented as: 100-a first sun shaft; 110-big gear ring; 120-big planet carrier; 121-a second bearing; 122-a third bearing; 130-big planetary cover plate; 140-large planet wheel; 141-big planet axis; 142-a first bearing; 200-a second sun shaft; 210-a small gear ring; 220-small planet carrier; 230-minor planet cover plate; 231-a fifth bearing; 240-small planet wheel; 241-small planet axis; 242-a fourth bearing; 250-a sixth bearing; 300-a reducer housing; 310-mounting holes.

Detailed Description

The following detailed description of the present application is given for the purpose of enabling those skilled in the art to better understand the technical solutions of the present application, and the description in this section is only exemplary and explanatory, and should not be taken as limiting the scope of the present application in any way.

Referring to fig. 1, the present embodiment provides a dual-shaft concentric reverse rotation speed reduction device, which includes a first sun shaft 100 and a second sun shaft 200, wherein the first sun shaft 100 and the second sun shaft 200 are coaxially disposed; a first planetary speed reduction mechanism and a second planetary speed reduction mechanism are respectively connected to the positions, close to the opposite ends, of the first sun shaft 100 and the second sun shaft 200; the first planetary reduction mechanism includes a relatively large ring gear 110 and a large carrier 120; the second planetary reduction mechanism includes a relatively small ring gear 210 and a small carrier 220; the large planet carrier 120 is fixedly connected with the small gear ring 210; the big gear ring 110 is fixedly connected with the small planet carrier 220; the large ring gear 110 and the small carrier 220 are also fixedly connected to a reducer case 300 for output. The first sun shaft 100 and the second sun shaft 200 are reversely input, the first sun shaft 100 is decelerated by a first planetary speed reducing mechanism, and then transmits power to the large planet carrier 120 and the large gear ring 110, the large planet carrier 120 is fixedly connected with the small gear ring 210 to transmit power to the small gear ring 210, and the small gear ring 210 transmits power to the small planet carrier 220; the second sun shaft 200 also transmits power to the small planet carrier 220 through the second planetary reduction mechanism, and the small planet carrier 220 is fixedly connected with the large gear ring 110, so that power combination is realized at the large gear ring 110, and the effect of double-shaft power coupling is achieved.

Referring further to FIG. 2, in a preferred embodiment, the large planet carrier 120 is fixedly connected to the small ring gear 210 via the large planet cover 130; a large planet shaft 141 is arranged between the large planet carrier 120 and the large planet cover plate 130; corresponding sleeves are arranged between the large planet cover plate 130 and the small gear ring 210 and are respectively and fixedly connected with the sleeves; the big planetary shaft 141 is connected with a corresponding big planetary wheel 140 through a first bearing 142; the large planetary cover plate 130 is positioned on the side of the large planetary gear 140 close to the second planetary reduction mechanism. The first bearing 142 is a deep groove ball bearing.

In a preferred embodiment, the side of the big planet carrier 120 away from the big planet cover plate 130 is provided with an extension sleeve; a second bearing 121 is arranged between the inner side of the extension sleeve and the first sun shaft 100, and the second bearing 121 adopts a self-aligning thrust roller bearing to play the roles of centering and bearing axial load; a third bearing 122 is arranged between the outer side of the extension sleeve and the speed reducer shell 300, and the third bearing 122 adopts a self-aligning roller bearing and also plays a role in centering and bearing radial load.

In a preferred embodiment, a reducer case 300 is provided on a side of the large carrier 120 away from the second planetary reduction mechanism, and a mounting hole 310 for connection with the outside is provided on the reducer case 300.

In a preferred embodiment, the second planetary reduction mechanism further includes a small planetary cover 230, a small planetary shaft 241 is connected between the small planetary cover 230 and the small planetary carrier 220, and a small planetary wheel 240 is connected to the small planetary shaft 241 through a fourth bearing 242; the fourth bearing 242 is a deep groove ball bearing; the small planetary cover plate 230 is positioned at one side of the small planetary wheel 240 close to the large planetary cover plate 130; an extension sleeve with a relatively smaller outer diameter is arranged on one side of the small planet cover plate 230 close to the large planet cover plate 130, an extension sleeve with a relatively larger inner diameter is correspondingly arranged on the large planet cover plate 130, a fifth bearing 231 is arranged between the two extension sleeves, and the fifth bearing 231 adopts a double-row roller bearing.

In a preferred embodiment, a sixth bearing 250 is further sleeved on the second sun shaft 200, and the sixth bearing 250 is located between the second sun shaft 200 and the minor planet carrier 220; the sixth bearing 250 adopts a self-aligning thrust roller bearing, and plays a role in centering and bearing axial load.

In a preferred embodiment, the side of the small planet carrier 220 remote from the first planetary reduction mechanism is also provided with a reducer housing 300.

The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. The foregoing is only a preferred embodiment of the present application, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present invention, and the technical features described above may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention in other contexts without modification may be viewed as within the scope of the present application.