CN215567694U

CN215567694U - Planetary gear assembly

Info

Publication number: CN215567694U
Application number: CN202122028989.5U
Authority: CN
Inventors: 洪龙; 顾斌
Original assignee: Baier Hydraulic Power Wuhan Co Ltd
Current assignee: Baier Hydraulic Power Wuhan Co Ltd
Priority date: 2021-08-26
Filing date: 2021-08-26
Publication date: 2022-01-18
Anticipated expiration: 2031-08-26

Abstract

The utility model discloses a planetary gear assembly, which comprises a motor output end, wherein an output gear is installed on the outer side of the motor output end, a first planetary gear carrier is arranged below the motor output end, a second planetary gear carrier is arranged below the first planetary gear carrier, a third planetary gear carrier is arranged below the second planetary gear carrier, and a fourth planetary gear carrier is arranged below the third planetary gear carrier; and the planet wheels are respectively connected to one sides of the first planet wheel carrier, the second planet wheel carrier and the third planet wheel carrier, and inner gear rings are arranged in the first planet wheel carrier, the second planet wheel carrier, the third planet wheel carrier and the fourth planet wheel carrier. The planetary gear assembly can amplify torque to 2000NM as required by power transmission among the output gear, the first planetary carrier, the second planetary carrier, the third planetary carrier and the fourth planetary carrier in sequence, compared to the conventional device.

Description

Planetary gear assembly

Technical Field

The utility model relates to the technical field of planetary gears, in particular to a planetary gear assembly.

Background

Planetary gears refer to gear systems which can rotate around their own rotating shafts like fixed-axis gears, and the rotating shafts of the planetary gears rotate around the axes of other gears along with a planet carrier, the rotation around the axes of the planetary gears is called rotation, the rotation around the axes of other gears is called revolution, and the rotation around the axes of other gears is called planet rotation, so that the planetary gears are named as planets in a solar system, and a mechanical cylinder of an electric wrench, which is called a planet torque increaser in a technical term, is a power transmission mechanism.

The existing planetary gear assembly is simple in structure, only one or two groups of planetary gear assemblies are usually formed, when the planetary gear assembly is used, strong torque force is difficult to achieve, and the planetary gear assembly has great limitation in use.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a planetary gear assembly to solve the problems that the existing planetary gear assembly is simple in structure, only one or two groups of planetary assemblies are usually used, and the problem that stronger torque force is difficult to achieve and the problem of larger limitation in use is solved.

In order to achieve the purpose, the utility model provides the following technical scheme: a planetary gear assembly comprising:

the motor output end is provided with an output gear on the outer side, a first planetary gear carrier is arranged below the motor output end, a second planetary gear carrier is arranged below the first planetary gear carrier, a third planetary gear carrier is arranged below the second planetary gear carrier, a fourth planetary gear carrier is arranged below the third planetary gear carrier, and an output terminal is arranged below the fourth planetary gear carrier;

and the planet wheels are respectively connected to one sides of the first planet wheel carrier, the second planet wheel carrier and the third planet wheel carrier, and inner gear rings are arranged in the first planet wheel carrier, the second planet wheel carrier, the third planet wheel carrier and the fourth planet wheel carrier.

Preferably, the output end of the motor is fixedly connected with the output gear, and the output gear is in meshed connection with the first planetary gear carrier through an inner gear ring.

Preferably, the first planet carrier is in meshing connection with the second planet carrier through the planet wheels and the inner gear ring, and the second planet carrier is in meshing connection with the third planet carrier through the planet wheels and the inner gear ring.

Preferably, the third planetary gear carrier is in meshed connection with the fourth planetary gear carrier through the planetary gear and the inner gear ring, and the fourth planetary gear carrier is fixedly connected with the output terminal.

Preferably, the output gear is further provided with:

and the lubricating bin is arranged above the output gear, and oil injection ports are formed in two sides above the lubricating bin.

Preferably, the oil filling port is further provided with:

the sealing plug is arranged above the oil filling port;

a lubrication passage disposed below the oil filling port.

Preferably, the oil filling port is detachably connected with the sealing plug, and a communicating structure is formed between the oil filling port and the lubricating channel.

Compared with the prior art, the utility model provides a planetary gear assembly, which has the following beneficial effects: the planetary gear assembly can amplify torque to 2000NM required by power transmission among the output gear, the first planetary carrier, the second planetary carrier, the third planetary carrier and the fourth planetary carrier in sequence, and can output power through the output terminal.

1. The power is output through the output end of the motor to provide power for transmission of the planetary gear, the output gear can be in power transmission with the first planetary gear carrier through the inner gear ring, the first planetary gear carrier can be in power transmission with the second planetary gear carrier through the planetary gear and the inner gear ring, and meanwhile, the second planetary gear carrier can be in power transmission with the third planetary gear carrier through the planetary gear and the inner gear ring;

2. the third planetary gear carrier can transmit power between the planetary gear, the inner gear ring and the fourth planetary gear carrier, so that torque can be amplified to 2000NM required by power transmission among the output gear, the first planetary gear carrier, the second planetary gear carrier, the third planetary gear carrier and the fourth planetary gear carrier in sequence, and power can be output through the output terminal, thereby solving the problems that the existing planetary gear assembly has a simple structure, only one or two groups of planetary components are usually used, stronger torque force is difficult to achieve during use, and great limitation exists in use;

3. according to the utility model, lubricating oil can be injected into the lubricating bin through the oil injection port, the lubricating oil can be output to the surface of the output gear through the lubricating channel, the lubricating oil can be dispersed to the outer walls of other gears through the mutual meshing rotation of the gears, so that the lubricating effect is achieved, and the sealing plug can seal the oil injection port, so that the dustproof and leakproof effects are achieved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic diagram of the second and third planetary gear carriers of the present invention after being vertically flipped;

FIG. 3 is a schematic assembled structure of the present invention;

FIG. 4 is a schematic perspective view of an output end of the motor of the present invention;

fig. 5 is a schematic plan view of the output end of the motor according to the present invention.

In the figure: 1. a motor output end; 2. an output gear; 3. a first planet carrier; 4. an inner gear ring; 5. a second planet carrier; 6. a third planetary gear carrier; 7. a fourth planetary gear carrier; 8. a lubrication bin; 9. a planet wheel; 10. an output terminal; 11. an oil filling port; 12. a sealing plug; 13. a lubrication channel.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, a planetary gear assembly includes: the motor output end 1, the output gear 2 is installed on the outer side of the motor output end 1, the first planetary gear carrier 3 is arranged below the motor output end 1, the second planetary gear carrier 5 is arranged below the first planetary gear carrier 3, the planet gears 9 are respectively connected to one sides of the first planetary gear carrier 3, the second planetary gear carrier 5 and the third planetary gear carrier 6, and the inner gear rings 4 are arranged in the first planetary gear carrier 3, the second planetary gear carrier 5, the third planetary gear carrier 6 and the fourth planetary gear carrier 7; the output end 1 of the motor is fixedly connected with the output gear 2, and the output gear 2 is meshed with the first planetary gear carrier 3 through the inner gear ring 4; the power is output through the motor output end 1 to provide power for the transmission of the planetary gear, and the output gear 2 can transmit the power with the first planetary gear carrier 3 through the inner gear ring 4; a third planetary gear carrier 6 is arranged below the second planetary gear carrier 5, a fourth planetary gear carrier 7 is arranged below the third planetary gear carrier 6, and an output terminal 10 is arranged below the fourth planetary gear carrier 7; the first planet gear carrier 3 is in meshing connection with the second planet gear carrier 5 through the planet gears 9 and the inner gear ring 4, and the second planet gear carrier 5 is in meshing connection with the third planet gear carrier 6 through the planet gears 9 and the inner gear ring 4; the first planet carrier 3 can transmit power between the planet wheel 9 and the inner gear ring 4 and the second planet carrier 5, and the second planet carrier 5 can transmit power between the planet wheel 9 and the inner gear ring 4 and the third planet carrier 6; the third planetary gear carrier 6 is in meshed connection with the fourth planetary gear carrier 7 through the planetary gear 9 and the inner gear ring 4, and the fourth planetary gear carrier 7 is fixedly connected with the output terminal 10; the third planet carrier 6 can transmit power between the planet wheel 9 and the inner gear ring 4 and the fourth planet carrier 7, so that the torque can be amplified to 2000NM required by the sequential power transmission among the output gear 2, the first planet carrier 3, the second planet carrier 5, the third planet carrier 6 and the fourth planet carrier 7, and the power can be output through the output terminal 10.

Referring to fig. 1, 4 and 5, a planetary gear assembly includes: the lubricating bin 8 is arranged above the output gear 2, and oil injection ports 11 are formed in two sides above the lubricating bin 8; a sealing plug 12 mounted above the oil filling port 11; a lubrication passage 13 provided below the oil filler port 11; the oil filling port 11 is detachably connected with the sealing plug 12, and a communicating structure is formed between the oil filling port 11 and the lubricating channel 13; can inject lubricating oil into lubrication silo 8 through oiling mouth 11, can export lubricating oil to output gear 2 surfaces through lubricated passageway 13, rotate through the intermeshing between the gear, can disperse lubricating oil to all the other gear outer walls, reach lubricated effect, sealing plug 12 can seal oiling mouth 11, reaches dustproof, the effect of leak protection.

The working principle is as follows: when the planetary gear assembly is used, firstly, power is output through the output end 1 of the motor to provide power for transmission of the planetary gear, so that the output gear 2 can be driven to rotate, and the power can be transmitted to the first planetary gear carrier 3 through the inner gear ring 4 in the rotating process of the output gear 2; secondly, the first planet carrier 3 transmits power to the second planet carrier 5 through the rotation between the planet wheels 9 and the inner gear ring 4, and meanwhile, the second planet carrier 5 can transmit power to the third planet carrier 6 through the rotation of the planet wheels 9 and the inner gear ring 4; then the power of the third planet gear carrier 6 is transmitted to the fourth planet gear carrier 7 through the rotation between the planet gear 9 and the inner gear ring 4, the torque can be amplified to 2000NM required by the sequential power transmission in the process, and finally the power is output through an output terminal 10; when need lubricate the gear at last, take off sealing plug 12 from oiling mouth 11 tops, inject lubricating oil into lubrication bin 8 through oiling mouth 11 in, final lubricating oil drips to output gear 2 surfaces through lubrication channel 13, through the intermeshing rotation between the gear, can disperse lubricating oil to all the other gear outer walls, reach lubricated effect, prevent that the gear degree of lubrication is not good, the wearing and tearing that cause are serious and reduce work efficiency, this is exactly this planetary gear assembly's theory of operation.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A planetary gear assembly, comprising:

the motor output end (1), an output gear (2) is installed on the outer side of the motor output end (1), a first planetary gear carrier (3) is arranged below the motor output end (1), a second planetary gear carrier (5) is arranged below the first planetary gear carrier (3), a third planetary gear carrier (6) is arranged below the second planetary gear carrier (5), a fourth planetary gear carrier (7) is arranged below the third planetary gear carrier (6), and an output terminal (10) is arranged below the fourth planetary gear carrier (7);

and the planet wheels (9) are respectively connected to one sides of the first planet wheel carrier (3), the second planet wheel carrier (5) and the third planet wheel carrier (6), and the inner gear rings (4) are respectively arranged in the first planet wheel carrier (3), the second planet wheel carrier (5), the third planet wheel carrier (6) and the fourth planet wheel carrier (7).

2. The planetary gear assembly according to claim 1, wherein the motor output (1) is fixedly connected with the output gear (2), and the output gear (2) is in meshed connection with the first planet gear carrier (3) through an inner gear ring (4).

3. An assembly according to claim 1, wherein the first planet carrier (3) is in meshing connection with the second planet carrier (5) via a planet wheel (9) and an annulus gear (4), and the second planet carrier (5) is in meshing connection with the third planet carrier (6) via a planet wheel (9) and an annulus gear (4).

4. The planetary gear assembly according to claim 1, wherein the third planet gear carrier (6) is in meshed connection with the fourth planet gear carrier (7) via the planet gears (9) and the ring gear (4), and the fourth planet gear carrier (7) is fixedly connected with the output terminal (10).

5. The planetary gear assembly according to claim 1, wherein the output gear (2) is further provided with:

lubricating bin (8) is installed in the top of output gear (2), oiling mouth (11) have all been seted up to the both sides of lubricating bin (8) top.

6. An assembly according to claim 5, wherein the oil filling port (11) is further provided with:

a sealing plug (12) mounted above the oil filling opening (11);

a lubrication passage (13) provided below the oil filler port (11).

7. An assembly according to claim 6, wherein the filling opening (11) is detachably connected to a sealing plug (12) and a communication is provided between the filling opening (11) and the lubrication channel (13).