Planetary gear set mechanism

Abstract

The utility model provides a planetary gear set mechanism which comprises a seat body, a coupler, a shell and a flange, the coupler is installed in the seat body, the front portion of the seat body is fixedly connected with the shell, and the front portion of the shell is fixedly connected with the flange. The utility model has the advantages that the shell is provided with a plurality of small surfaces instead of a large plane, so that the propagation of noise can be more effectively inhibited, the propagation of vibration waves can be scattered and weakened, and the radiation and propagation of the noise are reduced; the front face of the flange is fixedly connected with a plurality of arc-shaped damping pads which are made of rubber materials, and the rubber has good elasticity and damping performance and can effectively absorb and weaken hard contact and vibration hard transmission between the flange and a mounting face. After the planetary gear set mechanism is installed, when power is output in work, hard contact with the contact portion of the flange, hard vibration transmission, damping on vibration and further reduction of noise can be prevented, and therefore the working noise of the planetary gear set mechanism is low.

Description

TECHNICAL FIELD

[0001] The utility model relates to planetary reducer technical field, in particular to a planetary gear set mechanism. BACKGROUND

[0002] The planetary reducer is a kind of transmission device that realizes speed reduction by different diameter gear combination.Its working principle is based on the meshing transmission of gear, the pinion on input shaft and the gear (or planetary gear set) on output shaft are mutually matched, and the speed reduction and torque increase are realized by the difference of gear circumference.Specifically, the planetary reducer contains an inner tooth ring, a sun gear and a group of planetary gear sets.When the sun gear is driven by external power, the planetary gear set simultaneously rotates and revolves along the inner tooth ring, and finally drives the output shaft to output power by the rotation of planetary gear.

[0003] In prior art, although the meshing precision between gears is high, the accuracy and stability of transmission can be ensured.But due to the large number of internal gear sets, the noise generated during operation is large, and the noise reduction problem is one of the problems that need to be solved urgently. SUMMARY

[0004] The utility model aims at solving at least one of the technical defects.

[0005] Therefore, one purpose of the utility model is to provide a planetary gear set mechanism to solve the problems mentioned in the background art and overcome the deficiencies in prior art.

[0006] In order to achieve the above purpose, the embodiment of the utility model provides a planetary gear set mechanism, which comprises a seat body, a shaft coupling, a shell, a flange, the inside of the seat body is provided with a shaft coupling, the front part of the seat body is fixedly connected with a shell, the front part of the shell is fixedly connected with a flange;

[0007] The inside of the flange is provided with a bearing, and the main shaft is installed in the bearing;

[0008] The front end of the shaft coupling is fixedly connected with a sun gear, the outer surface of the sun gear is movably connected with a planetary gear, and the inside of the shell is provided with an inner tooth ring movably connected with the planetary gear;

[0009] The auxiliary shaft is fixedly connected to the planetary gear, the output end is movably connected to the outer surface of the auxiliary shaft, and the front surface of the output end is fixedly connected with the main shaft;

[0010] Arc-shaped grooves are arranged at the four corners of the shell, and V-shaped grooves are arranged on the two sides, top surface and bottom surface of the shell.

[0011] The front surface of the flange is fixedly connected with a plurality of arc-shaped damping pads.

[0012] Preferably, the coupling connects the output end of the motor, and the shell, the flange and the base are welded.

[0013] With the above technical scheme: the planetary gear set mechanism, the coupling connects the output end of the motor, and the working principle is that when the external power (such as a motor) drives the sun gear to rotate, the meshing action between the sun gear and the planet gears makes the planet gears begin to rotate. At the same time, since the other side of the planet gears is meshed with the inner gear ring, the planet gears will also revolve along the track of the inner gear ring. The combination of rotation and revolution enables the planet gears to drive the output shaft to output the power after deceleration.

[0014] Preferably, the flange is provided with mounting holes at four corners, and the planet gears are arranged in a circumferential array about the sun gear.

[0015] With the above technical scheme: the core structure of the mechanism is a shell, an arc-shaped groove, a V-shaped groove and a damping pad. The core advantage of the mechanism is that the shell is improved, the arc-shaped groove is arranged at the four corners of the shell, the V-shaped grooves are arranged on the two sides, the top surface and the bottom surface of the shell, and the V-shaped grooves are also recessed. In this way, the large plane of the shell can be avoided, because the large plane is easy to become a propagation path of vibration and noise. The shell with multiple small faces instead of a large plane can more effectively suppress the propagation of noise, can scatter and weaken the propagation of vibration waves, and thus can reduce the radiation and propagation of noise.

[0016] The mechanism is installed and fixed through a flange, bolts, nuts and the like, a plurality of arc-shaped damping pads are fixedly connected to the front surface of the flange, the damping pads are made of rubber, the rubber has good elasticity and damping performance, and can effectively absorb and weaken the hard contact and vibration hard transmission between the flange and the mounting surface. After the mechanism is installed, the hard contact and vibration hard transmission of the contact part of the flange during the output of working power can be prevented, damping of vibration is generated, and the generation of noise is further reduced, so that the working noise of the planetary gear set mechanism is low.

[0017] Preferably, the output end is in the form of a disc, and the output end is welded to the root of the main shaft.

[0018] Preferably, the shell has 24 single faces.

[0019] Preferably, the damping pads are arranged in a circumferential array about the axis of the main shaft, the damping pads are bonded to the front surface of the flange, and the damping pads are made of rubber.

[0020] Compared with the prior art, the planetary gear set mechanism has the following advantages and beneficial effects:

[0021] 1. This planetary gear mechanism improves the housing through the coordinated arrangement of the housing, arc-shaped grooves, V-grooves, and damping pads. Arc-shaped grooves are provided at the four corners of the housing, and V-grooves are provided on both sides, top, and bottom surfaces. The V-grooves are also recessed, which avoids the appearance of large flat surfaces in the housing, as large surfaces easily become paths for vibration and noise transmission. By replacing large flat surfaces with multiple small surfaces in the housing, the propagation of noise can be more effectively suppressed, breaking up and weakening the propagation of vibration waves, thereby reducing the radiation and transmission of noise.

[0022] 2. This planetary gear set is mounted and secured using flanges, bolts, and nuts. Several curved damping pads are fixed to the front of the flange. Made of rubber, these pads offer excellent elasticity and damping properties, effectively absorbing and reducing hard contact and vibration transmission between the flange and the mounting surface. This prevents hard contact and vibration transmission from the flange during power output after installation, damping vibration and further reducing noise. Consequently, this planetary gear set exhibits low operating noise.

[0023] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0025] Figure 1 This is a schematic structural diagram of the utility model from the first perspective;

[0026] Figure 2 This is a schematic structural diagram of the utility model from a second viewing angle;

[0027] Figure 3 This is a schematic structural diagram of the utility model from a third perspective;

[0028] Figure 4 It is a schematic diagram of the internal structure of the utility model.

[0029] In the figure: 1-base, 2-coupling, 3-housing, 4-flange, 5-bearing, 6-main shaft, 7-sun gear, 8-planet gear, 9-counter shaft, 10-output end, 11-arc groove, 12-V groove, 13-damping pad. DETAILED DESCRIPTION

[0030] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0031] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0032] like Figures 1-4 As shown, the planetary gear set mechanism includes a base 1, a coupling 2, a housing 3, and a flange 4. The coupling 2 is installed inside the base 1, the front of the base 1 is fixedly connected to the housing 3, and the front of the housing 3 is fixedly connected to the flange 4;

[0033] A bearing 5 is installed inside the flange 4, and a main shaft 6 is installed in the bearing 5;

[0034] The front end of the coupling 2 is fixedly connected to the sun gear 7, the outer surface of the sun gear 7 is movably connected to the planetary gear 8, and the interior of the housing 3 is equipped with an inner gear ring movably connected to the planetary gear 8;

[0035] The planetary gear 8 is fixedly connected to a secondary shaft 9, the outer surface of the secondary shaft 9 is movably connected to an output end 10, and the front surface of the output end 10 is fixedly connected to the main shaft 6;

[0036] Arc grooves 11 are provided at the four corners of the housing 3, and V grooves 12 are provided on both sides, the top surface, and the bottom surface of the housing 3;

[0037] A plurality of arc-shaped damping pads 13 are fixedly connected to the front side of the flange 4 .

[0038] Example 1: Coupling 2 connects to the motor's output terminal. Housing 3, flange 4, and base 1 are welded together. Mounting holes are provided at the four corners of flange 4. Planetary gears 8 are arranged in a circular pattern around sun gear 7. The core structure of this mechanism consists of housing 3, arcuate groove 11, V-groove 12, and damping pad 13. Output terminal 10 is disc-shaped and welded to the base of main shaft 6.

[0039] In the embodiment 2, the shell 3 has 24 single faces. In this way, the large plane of the shell 3 can be avoided, because the large plane is easy to become the propagation path of vibration and noise. Instead of the large plane, the shell 3 has multiple small faces. In this way, the propagation of noise can be more effectively inhibited, the propagation of vibration wave can be scattered and weakened, and thus the radiation of noise can be reduced. The damping pads 13 are arranged in a circumferential array about the axis of the main shaft 6, and are bonded to the front surface of the flange 4. The damping pads 13 are made of rubber.

[0040] The working principle of the utility model is as follows:

[0041] The coupling 2 is connected to the output end of the motor, and serves as the external power input. When the external power (such as the motor) drives the sun gear 7 to rotate, the meshing action between the sun gear 7 and the planetary gear 8 makes the planetary gear 8 start to rotate. At the same time, since the other side of the planetary gear 8 is meshed with the inner gear ring, the planetary gear 8 will also revolve along the track of the inner gear ring. The combination of the rotation and the revolution enables the planetary gear 8 to drive the output shaft to output the power after deceleration.

[0042] Compared with the prior art, the utility model has the following beneficial effects:

[0043] 1. The planetary gear set mechanism is improved by the cooperation of the shell 3, the arc-shaped grooves 11, the V-shaped grooves 12 and the damping pads 13. The arc-shaped grooves 11 are arranged at the four corners of the shell 3. The V-shaped grooves 12 are arranged on the two sides, the top surface and the bottom surface of the shell 3, and are also recessed. In this way, the large plane of the shell 3 can be avoided, because the large plane is easy to become the propagation path of vibration and noise. Instead of the large plane, the shell 3 has multiple small faces. In this way, the propagation of noise can be more effectively inhibited, the propagation of vibration wave can be scattered and weakened, and thus the radiation of noise can be reduced.

[0044] 2. The planetary gear set mechanism is installed and fixed by the flange 4, the bolts, the nuts and the like. The arc-shaped damping pads 13 are fixedly connected to the front surface of the flange 4. The damping pads 13 are made of rubber, which has good elasticity and damping performance, and can effectively absorb and weaken the hard contact and the vibration hard transmission between the flange and the mounting surface. After the mechanism is installed, the hard contact and the vibration hard transmission of the contact part of the flange 4 can be prevented during the working output power. The vibration can be damped, and the generation of noise can be further reduced. Therefore, the working noise of the planetary gear set mechanism is low.

Claims

1. A planetary gear set mechanism characterized by, Including the seat body (1), the shaft coupling (2), the casing (3), the flange (4), the inside installation of the seat body (1) has the shaft coupling (2), the front fixed connection of the seat body (1) has the casing (3), the front fixed connection of the casing (3) has the flange (4), The inside installation of the flange (4) has the bearing (5), the main shaft (6) is installed in the bearing (5), The front end fixed connection of the shaft coupling (2) has the sun gear (7), the outer surface movable joint of the sun gear (7) has the planet wheel (8), the inside installation of the casing (3) has the inner tooth ring movable joint with the planet wheel (8), The fixed connection of the planet wheel (8) has the auxiliary shaft (9), the outer surface movable joint of the auxiliary shaft (9) has the output end (10), the front surface fixed connection of the output end (10) has the main shaft (6), The arc-shaped recess (11) is set up in the four corners of the casing (3), the V groove (12) is set up in the both sides, top surface, bottom surface of the casing (3), The front fixed connection of the flange (4) has a plurality of arc-shaped damping pad (13).

2. A planetary gearset mechanism as claimed in claim 1, characterised in that: The output end of the shaft coupling (2) is connected with the motor, the casing (3), the flange (4), the seat body (1) are welded.

3. A planetary gearset mechanism as claimed in claim 2, characterised in that: The installation hole is set up in the four corners of the flange (4), the planet wheel (8) is about the sun gear (7) circumferential array.

4. A planetary gearset mechanism as claimed in claim 3, wherein: The output end (10) is disc type, the output end (10) is welded with the root of the main shaft (6).

5. A planetary gearset mechanism as claimed in claim 4, wherein: The casing (3) has 24 single faces.

6. A planetary gearset mechanism as claimed in claim 5, characterised in that: The damping pad (13) is about the axis of the main shaft (6) circumferential array, the damping pad (13) is bonded with the front of the flange (4), the material of the damping pad (13) is rubber.

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