CN219549549U - Rotary planetary reducer - Google Patents

Abstract

The utility model provides a rotary planetary reducer. The rear end of the front box body is connected to the lower box body through a connecting flange, and an adjusting gasket is installed between the connecting flange and the front casing, so that the input bevel gear shaft can be adjusted more conveniently. The contact surface between the bevel gear on the upper and the third bevel gear on the first-stage sun gear shaft, thereby reducing noise and improving load-carrying capacity. The lower box, the first-stage internal gear, the middle box, the second-stage internal gear, and the upper box are fixedly connected by studs from bottom to top. The input shaft is transmitted to the input shaft, the input shaft is transmitted to the input bevel gear shaft, and the input bevel gear shaft is sequentially transmitted to the first planetary group, the second planetary group, and the output gear, providing a dual-input, precise transmission, A rotary planetary reducer that can effectively improve the carrying capacity.

Description

A rotary planetary reducer

technical field

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

Background technique

The structure of a traditional reducer includes an input shaft, an input gear, an output gear, and an output shaft, which are sequentially transmitted to complete the deceleration. The above-mentioned four major components are indispensable, with many transmission components, high manufacturing costs, and cumbersome assembly operations. There are installation errors between the gears, between the output shaft and the output gear, which will lead to the meshing error between the input gear and the output gear, and finally affect the overall performance of the reducer. Traditional reducers are generally equipped with an oil pump motor, but damage to the oil pump motor can easily cause damage to bearings and gear meshing parts.

Contents of the invention

The utility model provides a double-input rotary planetary reducer capable of precise transmission and effectively improving the bearing capacity.

The technical solution adopted in the utility model is: a rotary planetary reducer, including a front box, a lower box, a middle box, an upper box, a first-stage internal gear, a second-stage internal gear, an input shaft , the rear end of the front box is connected to the lower box by studs, and the lower box, the first-stage internal gear, the middle box, the second-stage internal gear, and the upper box are fixed by studs in sequence from bottom to top connection, which is characterized in that: the front box is connected with an input shaft through a bearing, and one end of the input shaft is sleeved with a first bevel gear through a key, the first bevel gear meshes with the second bevel gear on the input shaft, and the input shaft One end of the shaft extends out of the front box through the bearing, and the other end of the input shaft is set as a hollow shaft cavity. The outer circumference of the hollow shaft cavity is supported in the front box by the bearing, and the hollow shaft cavity is sleeved on one end of the input bevel gear shaft through a spline. , the other end of the input bevel gear shaft meshes with the third bevel gear on the first-stage sun gear shaft through the bevel gear, and the first-stage sun gear shaft is supported in the lower box through bearings and extends into the first-stage planet carrier. The upper end surface of the wheel shaft and the first-stage top block set in the first-stage planet carrier correspond to the limit position. The first-stage sun gear shaft drives the first-stage planetary gear through gear meshing. The first-stage planetary gear and the first-stage internal gear The first-stage planetary gear is sleeved on the first-stage planetary shaft through the bearing, the first-stage planetary shaft is connected to the first-stage planetary carrier, and the first-stage planetary carrier is set in the first-stage ring gear. The upper end of the first-stage planetary carrier is screwed to one end of the second-stage sun gear shaft through threads, and the other end face of the second-stage sun gear shaft is correspondingly limited by the second-stage top block set in the second-stage planetary frame. The sun gear shaft drives the second-stage planetary gear through gear meshing, the second-stage planetary gear meshes with the second-stage internal ring gear, the second-stage planetary gear is sleeved on the second-stage planetary shaft through the bearing, and the second-stage planetary shaft passes through On the second-stage planet carrier, the lower and upper ends of the second-stage planet carrier are respectively supported on the middle and upper boxes by bearings, and the upper end of the second-stage planet carrier extends out of the upper box and is connected with an output gear through a key.

Further, the bottom of the middle tank is connected to the lower end of the expansion tank through the first external pipe, and the upper end of the expansion tank is connected to the upper part of the tank through the second external 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 above scheme, the utility model has achieved the following positive and beneficial effects:

1. This reducer is equipped with a double input structure. When the normal input motor fails, the backup motor can be started to ensure the normal operation of the equipment.

2. The input connecting shaft and the input bevel gear shaft are connected by splines, which eliminates the concentricity error, facilitates disassembly and more balanced force.

3. There is an adjusting gasket between the connecting flange and the lower box, which can more conveniently adjust the contact surface between the bevel gear on the input bevel gear shaft and the third bevel gear on the first-stage sun gear shaft, thereby reducing the Noise, improve carrying capacity.

4. The middle casing and the rear casing are externally connected to the expansion tank instead of the oil pump motor, which can prevent damage to the bearing and gear meshing parts caused by damage to the oil pump motor, which not only saves costs, but also improves the life of the whole machine.

Description of drawings

Fig. 1 is a schematic diagram of the main view structure of the utility model;

Fig. 2 is a sectional view along line A-A of Fig. 1 .

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

Detailed ways

Further description will be made below in conjunction with drawings and embodiments.

Please refer to Figures 1 and 2, the utility model provides a technical solution: a rotary planetary reducer, including a front box 1, a lower box 2, a middle box 3, an upper box 4, a connecting flange 5, Adjusting gasket 6, input shaft 7, first bevel gear 8, input connecting shaft 9, second bevel gear 10, input bevel gear shaft 11, first stage sun gear shaft 12, third bevel gear 13, first stage planet carrier 14. The first-stage planetary shaft 15, the first-stage planetary gear 16, the first-stage ring gear 17, the second-stage sun gear shaft 18, the second-stage planet carrier 19, the second-stage planetary shaft 20, and the second-stage internal gear Ring 21, output gear 22, expansion tank 23, and second-stage planetary gear 24.

The rear end of the front box body 1 is connected to the lower box body 2 through the connecting flange 5, and an adjusting gasket 6 is installed between the connecting flange 5 and the front casing 2, so that it is more convenient to adjust the bevel gear part and the bevel gear on the input bevel gear shaft. The contact surface of the third bevel gear on the first-stage sun gear shaft when meshing, thereby reducing noise and improving load-carrying capacity. The lower box body 2, the first-stage ring gear 17, the middle box body 3, the second-stage ring gear 21, and the upper box body 4 are fixedly connected via studs in sequence from bottom to top. (see picture 1)

The front casing 1 is connected with an input shaft 7 through a bearing, and one end of the input shaft 7 is sleeved with a first bevel gear 8 through a key, and the middle part of the input shaft is supported on the front casing through a bearing. (See Figure 2) The first bevel gear 8 meshes with the second bevel gear 10 on the input shaft 9, one end of the input shaft 9 extends out of the front box through the bearing, and the other end of the input shaft 9 is set as a hollow shaft cavity 901 , The outer circumference of the hollow shaft cavity 901 is supported on the box by bearings, and the hollow shaft cavity is sleeved on one end of the input bevel gear shaft 11 through a spline, which eliminates the concentric error, facilitates disassembly and more balanced force. The other end of the input bevel gear shaft 11 meshes with the third bevel gear 13 on the first-stage sun gear shaft 12 through the bevel gear, and the first-stage sun gear shaft 12 is supported in the lower box 2 through bearings and extends into the first-stage planet carrier 14 Inside, one end face of the first-stage sun gear shaft 12 is correspondingly limited by the first-stage top block 27 set in the first-stage planetary carrier 14, and the first-stage sun gear shaft 12 drives the first-stage planetary gear 16 through tooth meshing, The first-stage planetary gear meshes with the first-stage ring gear 17, the first-stage planetary gear 16 is sleeved on the first-stage planetary shaft 15 through a bearing, and the first-stage planetary shaft is connected to the first-stage planet carrier 14, The first-stage planetary carrier is set in the first-stage ring gear 17, the upper end of the first-stage planetary carrier 14 is screwed to one end of the second-stage sun gear shaft 18 through threads, and the other end surface of the second-stage sun gear shaft 18 and the limiter are set on The second-stage top block 28 in the second-stage planet carrier 19 corresponds to the limit position, the second-stage sun gear shaft 18 drives the second-stage planetary gear 24 through tooth meshing, and the second-stage planetary gear meshes with the second-stage ring gear 21, The second-stage planetary gear 24 is sleeved on the second-stage planetary shaft 20 through bearings, and the second-stage planetary shaft is connected to the second-stage planetary carrier 19, and the lower and upper ends of the second-stage planetary carrier are respectively supported in the middle and upper ends by bearings On the upper box, the upper end of the second-stage planet carrier extends out of the upper box and is connected with an output gear 22 through a key. (see picture 1)

On the basis of the above-mentioned embodiment, the bottom of the box body can also be connected to the lower end of the expansion tank 23 through the first external connecting pipe 25, and the upper end of the expansion tank 23 is connected to the upper part of the casing 4 through the second external connecting pipe 26 instead of connecting the oil pump motor, which can prevent Oil pump motor damage causes damage to bearings and gear meshing parts, which not only saves costs, but also improves the life of the whole machine.

Claims (3)

1. A rotary planetary reducer, comprising a front box, a lower box, a middle box, an upper box, a first-stage internal ring gear, a second-stage internal ring gear, and an input shaft, the front box The rear end is connected to the lower box by studs, and the lower box, the first-stage internal gear, the middle box, the second-stage internal gear, and the upper box are fixedly connected by studs from bottom to top. The front box is connected with an input shaft through a bearing, and one end of the input shaft is sleeved with a first bevel gear through a key, the first bevel gear meshes with the second bevel gear on the input shaft, and one end of the input shaft extends out of the front through the bearing Outside the box, the other end of the input shaft is set as a hollow shaft cavity. The outer circumference of the hollow shaft cavity is supported in the front box by bearings. The hollow shaft cavity is sleeved on one end of the input bevel gear shaft through a spline, and the other end of the input bevel gear The bevel gear meshes with the third bevel gear on the first-stage sun gear shaft. The first-stage sun gear shaft is supported in the lower box through bearings and extends into the first-stage planetary carrier. The upper end surface of the first-stage sun gear shaft and the limit setting The first-stage top block in the first-stage planet carrier corresponds to the limit, the first-stage sun gear shaft drives the first-stage planetary gear through gear meshing, the first-stage planetary gear meshes with the first-stage ring gear, and the first-stage planetary gear The wheel is sleeved on the first-stage planetary shaft through the bearing, and the first-stage planetary shaft is connected to the first-stage planetary carrier. The first-stage planetary carrier is set in the first-stage inner ring gear. The screw thread is screwed to one end of the second-stage sun gear shaft, and the other end surface of the second-stage sun gear shaft is correspondingly limited by the second-stage top block set in the second-stage planet carrier, and the second-stage sun gear shaft is geared to drive the first Second-stage planetary gear, the second-stage planetary gear meshes with the second-stage ring gear, the second-stage planetary gear is sleeved on the second-stage planetary shaft through the bearing, and the second-stage planetary shaft is connected to the second-stage planet carrier , the lower and upper ends of the second-stage planet carrier are respectively supported on the middle and upper boxes by bearings, and the upper end of the second-stage planet carrier extends out of the upper box and is connected with an output gear through a key. 2. A rotary planetary reducer according to claim 1, characterized in that: the bottom of the middle box is connected to the lower end of the expansion tank through the first external pipe, and the upper end of the expansion tank is connected to the upper part of the box through the second external pipe. 3. A rotary planetary reducer according to claim 1, characterized in that: a connecting flange is connected between the front box and the lower box, and an adjusting flange is connected between the connecting flange and the lower box. gasket.