Planetary gear with balanced load

Abstract

The utility model belongs to the technical field of planetary gears, and particularly relates to a load-balanced planetary gear which comprises a gear disc and a gear carrier, a fixing plate is fixedly mounted at the bottom of the gear disc, a sun gear and a planetary gear are arranged in the gear disc, a connecting groove is formed in the center of the planetary gear, and an output shaft is fixedly mounted on one side of the gear carrier. When the sun gear rotates, the planet gears are driven to rotate and revolve around the sun gear, meanwhile, the planet gears are limited through the gear carrier, it is guaranteed that the planet gears are evenly distributed, the planet gears are evenly distributed, and therefore the planet gears are evenly distributed. By means of the structure, load distribution uniformity is guaranteed, the load borne by a single planet wheel is reduced, the planet wheels are flexibly supported through flexible arrangement of the gear rings, the planet wheels can be slightly adjusted during rotation, and automatic distribution is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of planetary gears, and specifically relates to a planetary gear with balanced load. Background Art

[0002] A planetary gear refers to a gear system in which, in addition to being able to rotate around its own axis of rotation like a fixed-axis gear, its axis of rotation also rotates around the axes of other gears along with the planet carrier. The rotation around its own axis is called "self-rotation", and the rotation around the axes of other gears is called "revolution", just like the planets in the solar system, so it gets this name.

[0003] The prior art has the following deficiencies:

[0004] In the operation process of the existing planetary gear device, it usually operates by continuous meshing between the sun gear, the planetary gears and the gear ring. However, during operation, it is prone to eccentric load, resulting in uneven load distribution, which causes uneven wear of the gears and reduces the service life. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a planetary gear with balanced load to solve the problems put forward in the above background art.

[0006] To achieve the above object, the utility model provides the following technical solution: A planetary gear with balanced load, including a gear disc and a gear frame. A fixing plate is fixedly installed at the bottom of the gear disc. A sun gear and planetary gears are arranged inside the gear disc. A connecting groove is opened at the center of the planetary gear. An output shaft is fixedly installed on one side of the gear frame. A connecting flange is fixedly installed on the output shaft. A rotating shaft is fixedly installed on the other side of the gear frame corresponding to the position of the planetary gear.

[0007] As a preferred technical solution of the utility model, the gear ring is flexibly arranged, and the outer side of the gear ring is meshed and connected with the inner wall of the gear disc.

[0008] As a preferred technical solution of the utility model, an input shaft passing through the fixing plate is rotatably installed at the center of the fixing plate, and the sun gear is fixedly installed on the input shaft.

[0009] As a preferred technical solution of the utility model, multiple groups of planetary gears are provided and are evenly distributed around the sun gear, and the outer sides of the planetary gears are respectively meshed and connected with the inner side of the gear ring and the outer side of the sun gear.

[0010] As a preferred technical solution of the utility model, one end of the rotating shaft away from the gear frame extends into the connecting groove to be rotatably connected with the planetary gear. An oil injection hole is opened on the rotating shaft, and one end of the oil injection hole penetrates through the gear frame and is threadedly installed with a sealing plug.

[0011] As a preferred technical solution of the present utility model, an installation groove is provided at the position corresponding to the center of the planetary gear on the inner wall of the connection groove. A sponge pad is fixedly installed inside the installation groove, and an oil outlet hole is provided at the position of the planetary gear corresponding to the installation groove.

[0012] As a preferred technical solution of the present utility model, a through hole communicating with the oil injection hole is provided at the position of the rotating shaft corresponding to the installation groove.

[0013] Compared with the prior art, the present utility model provides a planetary gear with load balance, having the following beneficial effects:

[0014] 1. For this planetary gear with load balance, when the sun gear rotates, it drives the planetary gear to rotate self - and revolve around the sun gear. At the same time, the gear frame limits multiple groups of planetary gears to ensure the uniform distribution of the planetary gears, thus ensuring the uniformity of load distribution, reducing the load borne by a single planetary gear, and through the flexible setting of the gear ring, flexibly supporting the planetary gear so that it can be slightly adjusted during rotation, facilitating automatic distribution.

[0015] 2. For this planetary gear with load balance, by setting the sponge pad, when injecting oil, the lubricating oil is added into the oil injection hole, and then added into the installation groove through the oil outlet hole, and the sponge pad absorbs the lubricating oil. When the planetary gear rotates, the lubricating oil is thrown out through the oil outlet hole to lubricate between the planetary gear and the gear disc and the sun gear, thereby reducing the friction and wear between the planetary gear and the gear disc and the sun gear, improving the use effect of the planetary gear, and contributing to load balance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three - dimensional structure schematic diagram of the present utility model;

[0017] Figure 2 is a top - view structure schematic diagram of the present utility model;

[0018] Figure 3 is a schematic diagram of the internal structure of the planetary gear of the present utility model;

[0019] Figure 4 is a top - view sectional structure schematic diagram of the planetary gear of the present utility model;

[0020] Figure 5 is a three - dimensional sectional structure schematic diagram of the present utility model.

[0021] In the figure: 1. Gear disc; 101. Fixed plate; 102. Input shaft; 103. Gear ring; 2. Gear rack; 201. Output shaft; 202. Connecting flange; 203. Rotating shaft; 3. Sun gear; 4. Planet gear; 401. Connecting groove; 402. Mounting groove; 403. Sponge pad; 404. Oil outlet hole; 5. Oil injection hole; 501. Sealing plug; 502. Through hole. Detailed implementation mode

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figures 1-5 , in this implementation scheme: A planetary gear with load balance includes a gear disc 1 and a gear rack 2. A fixed plate 101 is fixedly installed at the bottom of the gear disc 1. A sun gear 3 and a planet gear 4 are arranged inside the gear disc 1. A connecting groove 401 is opened at the center of the planet gear 4. An output shaft 201 is fixedly installed on one side of the gear rack 2. A connecting flange 202 is fixedly installed on the output shaft 201. A rotating shaft 203 is fixedly installed at the position corresponding to the planet gear 4 on the other side of the gear rack 2.

[0024] In this embodiment, the gear ring 103 is flexibly arranged, and the outer side of the gear ring 103 is meshed and connected with the inner wall of the gear disc 1. Through the flexible arrangement of the gear ring 103, the planet gear 4 is flexibly supported, so that it can be slightly adjusted during rotation, which is convenient for automatic distribution.

[0025] In this embodiment, an input shaft 102 passing through the fixed plate 101 is rotatably installed at the center of the fixed plate 101. The sun gear 3 is fixedly installed on the input shaft 102. When the sun gear 3 rotates, it drives the planet gear 4 to rotate self and revolve around the sun gear 3.

[0026] In this embodiment, multiple groups of planet gears 4 are provided and are evenly distributed around the sun gear 3. The outer sides of the planet gears 4 are respectively meshed and connected with the inner side of the gear ring 103 and the outer side of the sun gear 3. The gear rack 2 limits multiple groups of planet gears 4 to ensure the uniform distribution between the planet gears 4, thereby ensuring the uniformity of load distribution and reducing the load borne by a single planet gear 4.

[0027] In this embodiment, one end of the rotating shaft 203 away from the gear rack 2 extends into the connecting groove 401 and is rotatably connected with the planet gear 4. An oil injection hole 5 is opened on the rotating shaft 203. One end of the oil injection hole 5 penetrates through the gear rack 2 and is threadedly installed with a sealing plug 501.

[0028] In this embodiment, an installation groove 402 is provided at the inner wall of the connection groove 401 corresponding to the center of the planet gear 4. A sponge pad 403 is fixedly installed inside the installation groove 402. An oil outlet hole 404 is provided at the position of the planet gear 4 corresponding to the installation groove 402. When refueling, lubricating oil is added into the oil injection hole 5, and then added into the installation groove 402 through the oil outlet hole 404. The sponge pad 403 absorbs the lubricating oil. When the planet gear 4 rotates, the lubricating oil is thrown out through the oil outlet hole 404 to lubricate between the planet gear 4, the gear disk 1 and the sun gear 3, thereby reducing the friction and wear between the planet gear 4, the gear disk 1 and the sun gear 3, improving the use effect of the planet gear 4, and helping to balance the load.

[0029] In this embodiment, a through hole 502 communicating with the oil injection hole 5 is provided at the position of the rotating shaft 203 corresponding to the installation groove 402.

[0030] The working principle and usage process of the present utility model: When in use, the input shaft 102 is connected to an external power device to drive the sun gear 3 to rotate, causing the planet gear 4 to rotate self - rotatably and revolve around the sun gear 3. When refueling, lubricating oil is added into the oil injection hole 5, and then added into the installation groove 402 through the oil outlet hole 404. The sponge pad 403 absorbs the lubricating oil. When the planet gear 4 rotates, the lubricating oil is thrown out through the oil outlet hole 404 to lubricate between the planet gear 4, the gear disk 1 and the sun gear 3, thereby reducing the friction and wear between the planet gear 4, the gear disk 1 and the sun gear 3, and improving the use effect of the planet gear 4.

[0031] Finally, it should be noted that: The above - mentioned are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A load-balanced planetary gear, comprising a gear disc (1) and a gear carrier (2), wherein a fixing plate (101) is fixedly installed at the bottom of the gear disc (1), and it is characterized in that: Inside the gear disc (1), there is a gear ring (103). Inside the gear ring (103), there are a sun gear (3) and planet gears (4). At the center of the planet gear (4), there is a connection groove (401). On one side of the gear carrier (2), an output shaft (201) is fixedly installed, and a connection flange (202) is fixedly installed on the output shaft (201). On the other side of the gear carrier (2), a rotating shaft (203) is fixedly installed corresponding to the position of the planet gear (4).

2. A load-balanced planetary gear according to claim 1, characterized in that: The gear ring (103) is flexibly arranged, and the outer side of the gear ring (103) is meshed and connected with the inner wall of the gear disc (1).

3. A load-balanced planetary gear according to claim 1, characterized in that: At the center of the fixing plate (101), an input shaft (102) passing through the fixing plate (101) is rotatably installed, and the sun gear (3) is fixedly installed on the input shaft (102).

4. A load-balanced planetary gear according to claim 1, characterized in that: There are multiple groups of the planet gears (4), which are equidistantly distributed around the sun gear (3), and the outer sides of the planet gears (4) are respectively meshed and connected with the inner side of the gear ring (103) and the outer side of the sun gear (3).

5. A load-balanced planetary gear according to claim 1, characterized in that: One end of the rotating shaft (203) away from the gear carrier (2) extends into the connection groove (401) and is rotatably connected with the planet gear (4). An oil injection hole (5) is opened on the rotating shaft (203), and one end of the oil injection hole (5) penetrates through the gear carrier (2) and is threadedly installed with a sealing plug (501).

6. A load-balanced planetary gear according to claim 1, characterized in that: On the inner wall of the connection groove (401) corresponding to the center of the planet gear (4), there is an installation groove (402). Inside the installation groove (402), a sponge pad (403) is fixedly installed. The planet gear (4) is provided with an oil outlet hole (404) corresponding to the installation groove (402).

7. A load-balanced planetary gear according to claim 1, characterized in that: The rotating shaft (203) is provided with a through hole (502) corresponding to the installation groove (402) and communicating with the oil injection hole (5).

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