CN113198353A

CN113198353A - Planetary stirrer structure

Info

Publication number: CN113198353A
Application number: CN202110501721.0A
Authority: CN
Inventors: 覃晓明; 赖智鹏
Original assignee: Foshan Golden Milky Way Intelligent Equipment Co Ltd
Current assignee: Foshan Golden Milky Way Intelligent Equipment Co Ltd
Priority date: 2021-05-08
Filing date: 2021-05-08
Publication date: 2021-08-03

Abstract

The application discloses planet mixer structure includes: the gearbox, the central shaft, the sun wheel, the planet wheel and the planet shaft; the gear box is hermetically sleeved on the central shaft, and an installation cavity is arranged in the gear box; the sun wheel is synchronously sleeved on the central shaft in a transmission manner and is arranged in the mounting cavity; the planet wheel and the sun wheel are arranged in the mounting cavity in a transmission fit manner; one end of the planet shaft is mounted on the planet wheel, the other end of the planet shaft extends out of the mounting cavity, and the outer peripheral wall of the planet shaft is hermetically connected with the mounting cavity; the central shaft is provided with a central through hole along the axial direction and a first vent hole along the radial direction; the first vent hole is communicated with the central through hole and the mounting cavity. The central through hole is arranged in the central shaft and is connected with the first vent hole of the mounting cavity in the gear box, so that the interior of the box body is communicated with the outside, and the heat in the interior can be discharged in time; effectively solve the poor problem of current transmission rabbling mechanism thermal diffusivity.

Description

Planetary stirrer structure

Technical Field

The application relates to a planet wheel technical field especially relates to a planet mixer structure.

Background

The production of lithium battery slurry is usually carried out by adopting a power mixer, the power mixer mainly comprises a stirring mechanism and a dispersing mechanism, the dispersing mechanism can rotate anticlockwise at a high speed in the production process, the stirring mechanism can stir clockwise at a low speed, and the dispersing mechanism and the planetary box revolve clockwise at the same time, so that the slurry is subjected to strong shearing, kneading and dispersing to be complex motion, the stirring effect without dead angles and the high-efficiency mixing and kneading effect can be realized, and the slurry mixing and dispersing can be quickly realized.

For preventing that thick liquids from getting into the inside bearing damage that leads to of planetary case and preventing that planetary gear lubricating grease from revealing to get into thick liquids and influence thick liquids quality, need seal the processing to planetary gear, planetary case in the conventional lithium cell thick liquids power mixer production process.

The existing transmission stirring mechanism is usually sealed by adopting skeleton sealing elements such as fluororubber, nitrile rubber, polyurethane rubber and the like, and meanwhile, in order to ensure the vacuum degree requirement in the operation process of equipment, mechanical seal is arranged at a high-speed transmission shaft to ensure that the vacuum requirement is met. Such as the structure in the Chinese patent 'a three-shaft transmission structure for a stirrer' (application number: CN 201721670426.3). Framework oil seals, mechanical seals and the like belong to contact seals. The temperature at the bearing location is easily high during long-term high-speed operation. The heat can not be dissipated, the components of the slurry are easily decomposed when the heat is transferred to the components such as the dispersion shaft, the stirring shaft and the like which are in direct contact with the slurry, the performance of the slurry is influenced, and meanwhile, the service life of the bearing can be shortened under the condition of high temperature.

Disclosure of Invention

In view of this, the present application provides a planetary mixer structure, which is used to solve the problem of poor heat dissipation of the existing transmission mixing mechanism.

In order to achieve the above technical object, the present application provides a planetary mixer structure, including: the gearbox, the central shaft, the sun wheel, the planet wheel and the planet shaft;

the gear box is hermetically sleeved on the central shaft, and an installation cavity is arranged in the gear box;

both ends of the central shaft extend out of the gear box and are provided with a central through hole along the axial direction and a first vent hole along the radial direction;

the first vent hole is communicated with the central through hole and the mounting cavity;

the sun wheel is synchronously sleeved on the central shaft in a transmission manner and is arranged in the mounting cavity;

the planet wheel and the sun wheel are arranged in the mounting cavity in a transmission fit manner;

planet axle one end install in on the planet wheel, the other end stretches out the installation cavity just the periphery wall of planet axle with installation cavity sealing connection.

Preferably, the device also comprises a framework oil seal;

the central shaft is connected with the first end of the gear box in a sealing mode through the framework oil seal.

Preferably, the second end of the gearbox is sealingly connected to the central shaft by a bearing.

Preferably, the device further comprises a main shaft and a bearing seat;

the main shaft is sleeved on the central shaft, the first end of the main shaft extends out of the mounting cavity, and the second end of the main shaft is arranged in the mounting cavity;

the bearing seat is sleeved on the main shaft and is connected with the first end of the gear box in a sealing manner through the framework oil seal;

a first heat dissipation cavity is formed between the main shaft and the central shaft.

Preferably, a second heat dissipation cavity is formed between the bearing seat and the main shaft, and both the bearing seat and the main shaft are provided with second radial ventilation holes;

the second vent hole is communicated with the outside air, the first heat dissipation cavity and the second heat dissipation cavity.

Preferably, the bearing seat is connected with the main shaft in a sealing mode through a bearing.

Preferably, the first end of the main shaft is hermetically connected with the central shaft through a bearing.

Preferably, the corner of the outer box wall of the gear box is arc-shaped.

Preferably, a third vent hole along the radial direction is arranged on the central shaft;

the third vent hole communicates external air with the central through hole.

Preferably, the outer peripheral wall of the planet shaft is hermetically connected with the mounting cavity through a bearing.

It can be seen from above technical scheme that this application provides a planet mixer structure, includes: the gearbox, the central shaft, the sun wheel, the planet wheel and the planet shaft; the gear box is hermetically sleeved on the central shaft, and an installation cavity is arranged in the gear box; the sun wheel is synchronously sleeved on the central shaft in a transmission manner and is arranged in the mounting cavity; the planet wheel and the sun wheel are arranged in the mounting cavity in a transmission fit manner; one end of the planet shaft is mounted on the planet wheel, the other end of the planet shaft extends out of the mounting cavity, and the outer peripheral wall of the planet shaft is hermetically connected with the mounting cavity; the central shaft is provided with a central through hole along the axial direction and a first vent hole along the radial direction; the first vent hole is communicated with the central through hole and the mounting cavity. The central through hole is arranged in the central shaft and is connected with the first vent hole of the mounting cavity in the gear box, so that the interior of the box body is communicated with the outside, and the heat in the interior can be discharged in time; effectively solve the poor problem of current transmission rabbling mechanism thermal diffusivity.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic diagram of an overall structure of a planetary mixer structure according to an embodiment of the present disclosure;

in the figure: 1. a passive pulley; 2. a bearing; 3. a driven sprocket; 4. a central shaft; 5. a main shaft; 6. a bearing seat; 7. a support frame; 8. a sun gear; 9. a planet wheel; 10. a planet shaft; 11. a synchronous pulley; 12. a central through hole; 13. a third vent hole; 14. a second vent hole; 15. a first vent hole; 16. framework oil seal; 17. a gear case; 18. and (7) a gasket.

Detailed Description

The technical solutions of the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are some, but not all embodiments of the present application. 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 scope of protection claimed herein.

In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present application, it should be noted that the terms "mounted," "connected," and "connected" are used broadly and are defined as, for example, a fixed connection, an exchangeable connection, an integrated connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements, unless otherwise explicitly stated or limited. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.

The embodiment of the application discloses planetary mixer structure.

Referring to fig. 1, an embodiment of the present application provides a planetary mixer structure, including: a gear box 17, a central shaft 4, a sun wheel 8, a planet wheel 9 and a planet shaft 10; the gear box 17 is sleeved on the central shaft 4 in a sealing way, and an installation cavity is arranged inside the gear box; the sun wheel 8 is synchronously sleeved on the central shaft 4 in a transmission manner and is arranged in the installation cavity; the planet wheel 9 and the sun wheel 8 are arranged in the mounting cavity in a transmission fit manner; one end of a planet shaft 10 is mounted on the planet wheel 9, the other end of the planet shaft extends out of the mounting cavity, and the outer peripheral wall of the planet shaft is connected with the mounting cavity in a sealing mode; the central shaft 4 is provided with a central through hole 12 along the axial direction and a first vent hole 15 along the radial direction; the first ventilation hole 15 communicates the central through hole 12 with the mounting cavity.

Specifically, the gear fitting piece which runs at high speed is arranged in the mounting cavity, and the accumulated heat can enter the central through hole 12 through the first vent hole 15 during the transmission process; the two ends of the central shaft 4 extend out of the gear box and the central through hole 12 is communicated with the outside, so that heat can be directly discharged to the outside atmosphere, and a good heat dissipation effect is achieved.

The above is the first embodiment provided in the present application, and the following is the second embodiment provided in the present application, please refer to fig. 1 specifically.

A planetary mixer arrangement comprising: a gear box 17, a central shaft 4, a sun wheel 8, a planet wheel 9 and a planet shaft 10; the gear box 17 is sleeved on the central shaft 4 in a sealing way, and an installation cavity is arranged inside the gear box; the sun wheel 8 is synchronously sleeved on the central shaft 4 in a transmission manner and is arranged in the installation cavity; the planet wheel 9 and the sun wheel 8 are arranged in the mounting cavity in a transmission fit manner; one end of a planet shaft 10 is mounted on the planet wheel 9, the other end of the planet shaft extends out of the mounting cavity, and the outer peripheral wall of the planet shaft is connected with the mounting cavity in a sealing mode; the central shaft 4 is provided with a central through hole 12 along the axial direction and a first vent hole 15 along the radial direction; the first ventilation hole 15 communicates the central through hole 12 with the mounting cavity.

Further, a framework oil seal 16 is also included; the central shaft 4 is connected with a first end of a gear box 17 in a sealing way through a framework oil seal 16.

Specifically, in this embodiment, the framework oil seal is used to replace the mechanical seal, so that the technical effects of reducing heat generation and improving reliability can be achieved, and the problem of large heat generation caused by the mechanical seal can be solved.

Further, the device also comprises a main shaft 5 and a bearing seat 6; the main shaft 5 is sleeved on the central shaft 4, the first end of the main shaft extends out of the installation cavity, and the second end of the main shaft is arranged in the installation cavity; the bearing seat 6 is sleeved on the main shaft 5 and is connected with the first end of the gear box in a sealing way through a framework oil seal; a first heat dissipation chamber is formed between the main shaft 5 and the central shaft 4.

Specifically, the bearing seat is mounted on the support frame 7; the first heat dissipation cavity is communicated with the mounting cavity and used for discharging heat; the sun gear 8 is sleeved on the main shaft 5; the main shaft 5 is connected with a driven chain wheel 3 for transmitting power.

Further, a second heat dissipation cavity is formed between the bearing seat 6 and the main shaft 5, and both are provided with second radial vent holes 14; the second vent 14 communicates with the outside air, the first heat dissipation chamber and the second heat dissipation chamber.

Specifically, the main shaft 5 is connected with two ends of a bearing seat 6 through bearings 2; the second heat dissipation chamber is disposed between the bearings, and is used to discharge heat of the main shaft 5 through the second vent hole 14.

Further, in the present embodiment, the second end of the gear box 17 is sealingly connected to the central shaft 4 by means of a bearing 2.

Further, the corner of the outer case wall of the gear case 17 is arc-shaped.

Specifically, the outer case wall of the gear case 17 is designed without end corners, and is oval as a whole; the outer box wall of the elliptic curved surface enables the materials falling on the surface of the outer box wall to automatically slide off, and dead angles of powder accumulation do not exist.

Further, a third vent hole 13 along the radial direction is arranged on the central shaft 4; the third vent hole 13 communicates the outside air with the center through hole.

Specifically, the third ventilation hole 13 is provided at an end portion of the center shaft 4 extending out of the gear case 17.

Further, the outer peripheral wall of the planet shaft 10 is hermetically connected with the mounting cavity through the bearing 2 and a gasket.

Particularly, each part in the embodiment adopts a modular design, so that the assembly and the maintenance are convenient.

Although the present invention has been described in detail with reference to examples, it will be apparent to those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention.

Claims

1. A planetary mixer arrangement, comprising: the gearbox, the central shaft, the sun wheel, the planet wheel and the planet shaft;

2. A planetary mixer arrangement according to claim 1, further comprising a backbone oil seal;

3. A planetary mixer arrangement according to claim 2, wherein the second end of the gearbox is sealingly connected to the central shaft by a bearing.

4. A planetary mixer construction as claimed in claim 2, further comprising a main shaft and a bearing housing;

a first heat dissipation cavity communicated with the mounting cavity is formed between the main shaft and the central shaft.

5. A planetary mixer construction according to claim 4, wherein a second heat dissipation chamber is formed between the bearing housing and the main shaft, and both are provided with second radial ventilation apertures;

6. A planetary mixer arrangement according to claim 4, wherein the bearing housing is sealingly connected to the main shaft by a bearing.

7. A planetary mixer arrangement according to claim 4, wherein the first end of the main shaft is sealingly connected to the central shaft by a bearing.

8. A planetary mixer construction as claimed in claim 1 wherein the outer box wall corners of the gear box are radiused.

9. A planetary mixer construction as claimed in claim 1 wherein the central shaft is provided with a third radial vent;

the third vent hole communicates external air with the central through hole.

10. A planetary mixer construction according to claim 1, wherein the peripheral wall of the planet shaft is sealingly connected to the mounting cavity by a bearing.