CN219549549U

CN219549549U - Rotary planetary reducer

Info

Publication number: CN219549549U
Application number: CN202320210699.9U
Authority: CN
Inventors: 张玉圣; 殷桂虎; 顾翠松
Original assignee: Jiangsu Tailong Decelerator Machinery Co Ltd
Current assignee: Jiangsu Tailong Decelerator Machinery Co Ltd
Priority date: 2023-02-14
Filing date: 2023-02-14
Publication date: 2023-08-18
Anticipated expiration: 2033-02-14

Abstract

The utility model provides a rotary planetary reducer, wherein the rear end of a front box body is connected with a lower box body through a connecting flange, and an adjusting gasket is arranged between the connecting flange and a front machine shell, so that the contact surface of a bevel gear part on an input bevel gear shaft and a third bevel gear on a first-stage sun gear shaft can be adjusted more conveniently, noise is reduced, and the bearing capacity is improved. The lower box body, the first-stage annular gear, the middle box body, the second-stage annular gear and the upper box body are fixedly connected through studs from bottom to top in sequence. The input bevel gear shaft is sequentially transmitted to the first planetary group, the second planetary group and the output gear, and the rotary planetary reducer with double input, accurate transmission and effective bearing capacity improvement is provided.

Description

Rotary planetary reducer

Technical Field

The utility model relates to the field of speed reducers, in particular to a rotary planetary speed reducer.

Background

The traditional speed reducer structure comprises an input shaft, an input gear, an output gear and an output shaft, the four components are necessary to complete the speed reduction through sequential transmission, the transmission components are more, the manufacturing cost is high, the assembly operation is complicated, and installation errors exist between the input shaft and the input gear and between the output shaft and the output gear, so that the meshing errors of the input gear and the output gear are caused, and the overall performance of the speed reducer is finally affected. The traditional speed reducer is generally provided with an oil pump motor, but the damage of the oil pump motor easily causes the damage of a bearing and a gear meshing piece.

Disclosure of Invention

The utility model provides a double-input rotary planetary reducer which can be transmitted accurately and effectively improve the bearing capacity.

The technical scheme adopted by the utility model is as follows: the utility model provides a gyration planetary reducer, includes anterior box, lower box, well box, goes up box, first order ring gear, second grade ring gear, input shaft, the box is down connected through the double-screw bolt to anterior box rear end, lower box, first order ring gear, well box, second grade ring gear, go up the box and pass through double-screw bolt fixed connection from bottom to top in proper order, its characterized in that: the front box body is connected with an input shaft in a penetrating way through a bearing, one end of the input shaft is sheathed with a first bevel gear through a key, the first bevel gear is meshed with a second bevel gear on the input shaft, one end of the input shaft extends out of the front box body through a bearing, the other end of the input shaft is provided with a hollow shaft cavity, the outer circumference of the hollow shaft cavity is supported in the front box body through a bearing, the hollow shaft cavity is sheathed at one end of the input bevel gear shaft through a spline, the other end of the input bevel gear shaft is meshed with a third bevel gear on a first-stage sun gear shaft through a bevel gear part, the first-stage sun gear shaft is supported in a lower box body through a bearing and extends into a first-stage planet carrier, the end face of the upper end of the first-stage sun gear shaft is correspondingly limited with a first-stage top block which is limited in the first-stage planet carrier, the first-stage sun gear shaft is meshed with a first-stage inner gear through tooth, the first-stage planetary gear is sleeved on the first-stage planetary shaft through a bearing, the first-stage planetary shaft is connected on the first-stage planetary frame in a penetrating manner, the first-stage planetary frame is arranged in the first-stage annular gear, the upper end of the first-stage planetary frame is connected with one end of the second-stage sun gear shaft in a rotating manner through threads, the end face of the other end of the second-stage sun gear shaft is limited with a second-stage jacking block which is arranged in the second-stage planetary frame in a limiting manner in a corresponding manner, the second-stage sun gear shaft is meshed with the second-stage annular gear through teeth to drive the second-stage planetary gear, the second-stage planetary gear is sleeved on the second-stage planetary shaft through a bearing, the second-stage planetary shaft is connected on the second-stage planetary frame in a penetrating manner, the lower end and the upper end of the second-stage planetary frame are respectively supported in the middle and upper box body through bearings, and the upper end of the second-stage planetary frame extends out of the upper box body and is connected with an output gear through keys.

Further, the bottom of the middle box body is connected with the lower end of the expansion box through a first external connection pipe, and the upper end of the expansion box is connected with the upper part of the box body through a second external connection pipe.

Further, a connecting flange is connected between the front box body and the lower box body, and an adjusting gasket is connected between the connecting flange and the lower box body.

Based on the scheme, the utility model has the following positive and beneficial effects:

1. the speed reducer is provided with a double-input structure, and when a normal input motor fails, a standby motor can be started, so that the normal operation of equipment is ensured.

2. The input connecting shaft is connected with the input bevel gear shaft through the spline, so that concentric errors are eliminated, the disassembly is convenient, and the stress is more balanced.

3. An adjusting gasket is arranged between the connecting flange and the lower box body, so that the contact surface of the bevel gear part on the input bevel gear shaft and the third bevel gear on the first-stage sun gear shaft can be adjusted more conveniently, noise is reduced, and bearing capacity is improved.

4. The middle shell and the rear shell are externally connected with the expansion tank instead of the oil pump motor, so that the damage of the bearing and the gear engagement piece caused by the damage of the oil pump motor can be prevented, the cost is saved, and the service life of the whole machine is prolonged.

Drawings

FIG. 1 is a schematic diagram of a front view structure of the present utility model;

fig. 2 is a cross-sectional view taken along line A-A of fig. 1.

In the figure: the front box body 1, the lower box body 2, the middle box body 3, the rear box body 4, the connecting flange 5, the adjusting gasket 6, the input shaft 7, the first bevel gear 8, the input shaft 9, the hollow shaft cavity 901, the second bevel gear 10, the input bevel gear shaft 11, the first-stage sun gear shaft 12, the third bevel gear 13, the first-stage planet carrier 14, the first-stage planet shaft 15, the first-stage planet gears 16, the first-stage annular gear 17, the second-stage sun gear shaft 18, the second-stage planet carrier 19, the second-stage planet shaft 20, the second-stage annular gear 21, the output gear 22, the expansion box 23, the second-stage planet gears 24, the first outer connecting pipe 25, the second outer connecting pipe 26, the first-stage top block 27 and the second-stage top block 28.

Detailed Description

Further description is provided below with reference to the drawings and examples.

Referring to fig. 1 and 2, the present utility model provides a technical solution: the rotary planetary reducer comprises a front box body 1, a lower box body 2, a middle box body 3, an upper box body 4, a connecting flange 5, an adjusting gasket 6, an input shaft 7, a first bevel gear 8, an input connecting shaft 9, a second bevel gear 10, an input bevel gear shaft 11, a first-stage sun gear shaft 12, a third bevel gear 13, a first-stage planet carrier 14, a first-stage planet shaft 15, a first-stage planet gear 16, a first-stage annular gear 17, a second-stage sun gear shaft 18, a second-stage planet carrier 19, a second-stage planet shaft 20, a second-stage annular gear 21, an output gear 22, an expansion tank 23 and a second-stage planet gear 24.

The rear end of the front box body 1 is connected with the lower box body 2 through the connecting flange 5, and the adjusting gasket 6 is arranged between the connecting flange 5 and the front machine shell 2, so that the contact surface of the bevel gear part on the input bevel gear shaft and the third bevel gear on the first-stage sun gear shaft can be adjusted more conveniently, the noise is reduced, and the bearing capacity is improved. The lower box body 2, the first-stage annular gear 17, the middle box body 3, the second-stage annular gear 21 and the upper box body 4 are fixedly connected through studs from bottom to top in sequence. (see FIG. 1)

The front box body 1 is connected with an input shaft 7 in a penetrating way through a bearing, one end of the input shaft 7 is connected with a first bevel gear 8 in a sleeved mode through a key, and the middle of the input shaft is supported on the front box body through a bearing. (see fig. 2) the first bevel gear 8 is meshed with the second bevel gear 10 on the input shaft 9, one end of the input shaft 9 extends out of the front box body through a bearing, the other end of the input shaft 9 is provided with a hollow shaft cavity 901, the outer circumference of the hollow shaft cavity 901 is supported on the box body through a bearing, and the hollow shaft cavity is sleeved at one end of the input bevel gear shaft 11 through a spline, so that concentric errors are eliminated, and the split type bevel gear is convenient to detach and more balanced in stress. The other end of the input bevel gear shaft 11 is meshed with a third bevel gear 13 on a first-stage sun gear shaft 12 through a bevel gear part, the first-stage sun gear shaft 12 is supported in a lower box body 2 through a bearing and extends into a first-stage planet carrier 14, one end face of the first-stage sun gear shaft 12 is correspondingly limited with a first-stage jacking block 27 which is limited in the first-stage planet carrier 14, the first-stage sun gear shaft 12 is meshed with a first-stage inner gear ring 17 through tooth meshing to drive a first-stage planet wheel 16, the first-stage planet wheel 16 is sleeved on a first-stage planet shaft 15 through a bearing, the first-stage planet shaft is connected with the first-stage planet carrier 14 in a penetrating manner, the first-stage planet carrier is arranged in the first-stage inner gear ring 17 in a rotating manner, the upper end of the first-stage planet carrier 14 is connected with one end of a second-stage sun gear shaft 18 through threads, the other end face of the second-stage sun gear shaft 18 is limited with a second-stage jacking block 28 which is limited in the second-stage planet carrier 19 in a corresponding manner, the second-stage sun gear shaft 18 is meshed with a second-stage planet wheel 24 through tooth meshing transmission second-stage planet wheel 21, the second-stage planet wheel 24 is sleeved on a second-stage inner gear ring 21 through a second-stage inner gear ring 21, the second-stage bearing is connected with the upper end of the second-stage planet carrier through a bearing, the upper end of the second-stage planet carrier, and the upper end of the second-stage planet carrier is connected with the upper end of a second-stage planet carrier, and the output box is connected to the upper end of the first-stage planet carrier, and the upper end of the output box is respectively. (see FIG. 1)

On the basis of the embodiment, the bottom of the middle tank body is connected with the lower end of the expansion tank 23 through the first outer connecting pipe 25, the upper end of the expansion tank 23 is connected with the upper part of the tank body 4 through the second outer connecting pipe 26 instead of the oil pump motor, so that the damage of the bearing and the gear meshing piece caused by the damage of the oil pump motor can be prevented, the cost is saved, and the service life of the whole machine is prolonged.

Claims

1. The utility model provides a gyration planetary reducer, includes anterior box, lower box, well box, goes up box, first order ring gear, second grade ring gear, input shaft, the box is down connected through the double-screw bolt to anterior box rear end, lower box, first order ring gear, well box, second grade ring gear, go up the box and pass through double-screw bolt fixed connection from bottom to top in proper order, its characterized in that: the front box body is connected with an input shaft in a penetrating way through a bearing, one end of the input shaft is sheathed with a first bevel gear through a key, the first bevel gear is meshed with a second bevel gear on the input shaft, one end of the input shaft extends out of the front box body through a bearing, the other end of the input shaft is provided with a hollow shaft cavity, the outer circumference of the hollow shaft cavity is supported in the front box body through a bearing, the hollow shaft cavity is sheathed at one end of the input bevel gear shaft through a spline, the other end of the input bevel gear shaft is meshed with a third bevel gear on a first-stage sun gear shaft through a bevel gear part, the first-stage sun gear shaft is supported in a lower box body through a bearing and extends into a first-stage planet carrier, the end face of the upper end of the first-stage sun gear shaft is correspondingly limited with a first-stage top block which is limited in the first-stage planet carrier, the first-stage sun gear shaft is meshed with a first-stage inner gear through tooth, the first-stage planetary gear is sleeved on the first-stage planetary shaft through a bearing, the first-stage planetary shaft is connected on the first-stage planetary frame in a penetrating manner, the first-stage planetary frame is arranged in the first-stage annular gear, the upper end of the first-stage planetary frame is connected with one end of the second-stage sun gear shaft in a rotating manner through threads, the end face of the other end of the second-stage sun gear shaft is limited with a second-stage jacking block which is arranged in the second-stage planetary frame in a limiting manner in a corresponding manner, the second-stage sun gear shaft is meshed with the second-stage annular gear through teeth to drive the second-stage planetary gear, the second-stage planetary gear is sleeved on the second-stage planetary shaft through a bearing, the second-stage planetary shaft is connected on the second-stage planetary frame in a penetrating manner, the lower end and the upper end of the second-stage planetary frame are respectively supported in the middle and upper box body through bearings, and the upper end of the second-stage planetary frame extends out of the upper box body and is connected with an output gear through keys.

2. The rotary planetary reducer according to claim 1, characterized in that: the bottom of the middle box body is connected with the lower end of the expansion box through a first external pipe, and the upper end of the expansion box is connected with the upper part of the box body through a second external pipe.

3. The rotary planetary reducer according to claim 1, characterized in that: a connecting flange is connected between the front box body and the lower box body, and an adjusting gasket is connected between the connecting flange and the lower box body.