阅读说明：本技术 一种二级传动行星减速机构 (Two-stage transmission planetary reduction mechanism ) 是由 刘刚 朱景玉 吴强 于 2020-06-15 设计创作，主要内容包括：本发明涉及一种二级传动行星减速机构,包括内齿圈,内齿圈的左端安装盖板,内齿圈内的左侧安装一级减速单元,内齿圈内的右侧安装二级减速单元,内齿圈的右端安装压盖；所述一级减速单元包括第一太阳轮、第一行星轮、第一芯轴和第一行星架；所述二级减速单元包括第二太阳轮、第二行星轮、第二芯轴和第二行星架；第一行星轮通过第一芯轴安装在第一行星架内；所述第一行星架通过内花键与第二太阳轮连接,所述第二行星轮通过第二芯轴安装在第二行星架内,第二行星架通过内花键输出动力。本发明在有限空间内实现高传动比减速,大大缩小机构占用空间。(The invention relates to a secondary transmission planetary reduction mechanism which comprises an inner gear ring, wherein a cover plate is arranged at the left end of the inner gear ring, a primary reduction unit is arranged at the left side in the inner gear ring, a secondary reduction unit is arranged at the right side in the inner gear ring, and a gland is arranged at the right end of the inner gear ring; the first-stage speed reduction unit comprises a first sun gear, a first planet wheel, a first mandrel and a first planet carrier; the secondary speed reduction unit comprises a second sun gear, a second planet gear, a second mandrel and a second planet carrier; the first planet wheel is arranged in the first planet carrier through a first mandrel; the first planet carrier is connected with the second sun gear through an internal spline, the second planet gear is installed in the second planet carrier through a second mandrel, and the second planet carrier outputs power through the internal spline. The invention realizes high transmission ratio speed reduction in a limited space and greatly reduces the occupied space of the mechanism.)

1. A secondary transmission planetary reduction mechanism is characterized by comprising an inner gear ring (2), wherein a cover plate (1) is installed at the left end of the inner gear ring (2), a primary reduction unit is installed on the left side in the inner gear ring (2), a secondary reduction unit is installed on the right side in the inner gear ring (2), and a gland (12) is installed at the right end of the inner gear ring (2); the first-stage speed reduction unit comprises a first sun gear (24), a first planet gear (21), a first mandrel (20) and a first planet carrier (3); the secondary speed reduction unit comprises a second sun gear (19), a second planet gear (6), a second mandrel (5) and a second planet carrier (9);

the first sun wheel (24) is meshed with the first planet wheel (21), the first planet wheel (21) is meshed with the inner gear ring (2), and the first planet wheel (21) is installed in the first planet carrier (3) through the first mandrel (20); the first planet carrier (3) is connected with a second sun gear (19) through an internal spline, the second sun gear (19) is meshed with a second planet gear (6), and the second planet gear (6) is meshed with the inner gear ring (2); the second planet wheel (6) is arranged in a second planet carrier (9) through a second mandrel (5), and the second planet carrier (9) outputs power through an internal spline.

2. Two-stage transmission planetary reduction mechanism according to claim 1, characterized in that a first distance pad (23) is arranged between the cover plate (1) and the first planet carrier (3), and a first wear pad (4) is arranged between the first planet carrier (3) and the second planet carrier (9).

3. The two-stage transmission planetary reduction mechanism according to claim 1, characterized in that a steel sleeve (10) and a wear-resistant sleeve (11) are provided between the second planet carrier (9) and the gland (12).

4. The two-stage transmission planetary reduction mechanism according to claim 1, wherein an end cover (13) is installed at a rear side of the gland (12).

5. A two-stage transmission planetary reduction mechanism according to claim 1, characterized in that a first bearing (22) is arranged between the first planet wheel (21) and the first arbour (20), and a second bearing (7) is arranged between the second planet wheel (6) and the second arbour (5).

6. Two-stage transmission planetary reduction according to claim 1, characterized in that a second distance pad (18) and a cover (17) are provided between the second sun gear (19) and the second planet carrier (9).

7. The two-stage transmission planetary reduction mechanism according to claim 1, wherein an oil seal (16) is provided on the pressure cover (12).

8. The two-stage transmission planetary reduction mechanism according to claim 1, wherein a seal ring (15) is provided between the gland (12) and the end cover (13).

9. A two-stage transmission planetary reduction mechanism according to claim 1, characterized in that a distance sleeve (8) is provided between the second planet wheels (6) and the second planet carrier (9).

Technical Field

The invention relates to a two-stage transmission planetary reduction mechanism, and belongs to the technical field of planetary reduction mechanisms.

Background

Mechanical transmission is one of the most classical core technologies of mechanical engineering subjects, a mechanical transmission system is widely applied in the industrial field, and the mechanical transmission system is almost needed to be used for speed change in all occasions with prime movers, so that speed matching of a working machine is realized, and speed-up torque reduction or speed-down torque increase is completed.

The existing speed reducing mechanism on the coal mining machine has small torque and low transmission ratio, so a novel two-stage transmission planetary speed reducing mechanism needs to be developed.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide a two-stage transmission planetary speed reducing mechanism which realizes speed reduction with high transmission ratio in a limited space.

According to the technical scheme provided by the invention: a secondary transmission planetary reduction mechanism comprises an inner gear ring, wherein a cover plate is installed at the left end of the inner gear ring, a primary reduction unit is installed at the left side in the inner gear ring, a secondary reduction unit is installed at the right side in the inner gear ring, and a gland is installed at the right end of the inner gear ring; the first-stage speed reduction unit comprises a first sun gear, a first planet wheel, a first mandrel and a first planet carrier; the secondary speed reduction unit comprises a second sun gear, a second planet gear, a second mandrel and a second planet carrier;

the first sun gear is meshed with the first planet wheel, the first planet wheel is meshed with the inner gear ring, and the first planet wheel is installed in the first planet carrier through the first mandrel; the first planet carrier is connected with a second sun gear through an internal spline, the second sun gear is meshed with a second planet gear, and the second planet gear is meshed with an inner gear ring; the second planet wheel is arranged in the second planet carrier through a second mandrel, and the second planet carrier outputs power through an internal spline.

Further, a first distance pad is arranged between the cover plate and the first planet carrier, and a first wear pad is arranged between the first planet carrier and the second planet carrier.

Further, a steel sleeve and a wear-resistant sleeve are arranged between the second planet carrier and the gland.

Further, an end cover is installed at the rear side of the gland.

Furthermore, a first bearing is arranged between the first planet wheel and the first mandrel, and a second bearing is arranged between the second planet wheel and the second mandrel.

Further, a second distance pad and a sealing cover are arranged between the second sun gear and the second planet carrier.

Further, an oil seal is arranged on the pressure cover.

Further, a sealing ring is arranged between the gland and the end cover.

Further, a distance sleeve is arranged between the second planet wheel and the second planet carrier.

Compared with the prior art, the invention has the following advantages:

1. the speed reduction with high transmission ratio is realized in a limited space, and the space occupied by the mechanism is greatly reduced.

2. The first sun gear and the second sun gear are in floating connection, and the outer circle of the base is not positioned, so that the traction and speed reduction of the coal mining machine with high torque and high transmission ratio are realized.

Drawings

FIG. 1 is a cross-sectional view of the present invention.

Description of reference numerals: the planetary gear transmission comprises a cover plate 1, a ring gear 2, a ring gear 3, a first planet carrier 4, a first wear-resistant pad 5, a second mandrel 6, a second planet wheel 7, a second bearing 8, a distance sleeve 9, a second planet carrier 10, a steel sleeve 11, a wear-resistant sleeve 12, a gland 13, an end cover 13, a sealing ring 15, an oil seal 16, a seal cover 17, a second distance pad 18, a second sun gear 19, a first mandrel 20, a first planet wheel 21, a first bearing 22, a first distance pad 23 and a first sun gear 24.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

As shown in fig. 1, a secondary transmission planetary reduction mechanism comprises an inner gear ring 2, a cover plate 1 is installed at the left end of the inner gear ring 2, a primary reduction unit is installed at the left side in the inner gear ring 2, a secondary reduction unit is installed at the right side in the inner gear ring 2, and a gland 12 is installed at the right end of the inner gear ring 2; the first-stage reduction unit comprises a first sun gear 24, a first planet gear 21, a first mandrel 20 and a first planet carrier 3; the secondary speed reduction unit comprises a second sun gear 19, a second planet gear 6, a second mandrel 5 and a second planet carrier 9;

the first sun gear 24 is meshed with the first planet gear 21, the first planet gear 21 is meshed with the inner gear ring 2, and the first planet gear 21 is installed in the first planet carrier 3 through the first mandrel 20; the first planet carrier 3 is connected with a second sun gear 19 through an internal spline, the second sun gear 19 is meshed with a second planet gear 6, and the second planet gear 6 is meshed with the inner gear ring 2; the second planet wheel 6 is arranged in a second planet carrier 9 through a second mandrel 5, and the second planet carrier 9 outputs power through an internal spline.

A first distance pad 23 is arranged between the cover plate 1 and the first planet carrier 3, and a first wear pad 4 is arranged between the first planet carrier 3 and the second planet carrier 9.

And a steel sleeve 10 and a wear-resistant sleeve 11 are arranged between the second planet carrier 9 and the gland 12.

An end cap 13 is mounted on the rear side of the gland 12.

A first bearing 22 is arranged between the first planet wheel 21 and the first spindle 20, and a second bearing 7 is arranged between the second planet wheel 6 and the second spindle 5.

A second distance pad 18 and a cover 17 are arranged between the second sun gear 19 and the second planet carrier 9.

An oil seal 16 is arranged on the gland 12.

And a sealing ring 15 is arranged between the gland 12 and the end cover 13.

A distance sleeve 8 is arranged between the second planet wheel 6 and the second planet carrier 9.

The working principle is as follows: this patent realizes the second grade speed reduction in effective space, can improve mechanical system's speed reduction ratio greatly. The driving end is meshed with the planet wheel 21 through the sun wheel 24, the planet wheel 21 is meshed with the inner gear ring 2, and the inner gear ring 2 is fixed and does not rotate. When the sun gear 24 rotates, the planet gears 21 revolve around the axis of the mechanism while rotating, so that the planet carrier 3 is driven to rotate, and primary speed reduction is realized. The planet carrier 3 is connected with the sun gear 19 through an internal spline, so that power transmission is realized. The sun wheel 19 meshes with the planet wheels 6, and the planet wheels 6 mesh with the inner gear ring 2. When the sun wheel 19 rotates, the planet wheel 6 revolves around the axis of the mechanism while rotating, so that the planet carrier 9 is driven to rotate, and secondary speed reduction is realized. The planet carrier 9 realizes power output through an internal spline.

It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.