A vertical shaft planetary mixer drive
By using a central gear to drive the planetary gears' rotation and revolution, along with a scraper design, the complexity of the transmission device and the cleaning difficulties of the vertical shaft planetary mixer are solved, achieving simple and reliable transmission and efficient mixing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHENGZHOU JIANXIN MASCH CO LTD
- Filing Date
- 2025-04-15
- Publication Date
- 2026-06-02
AI Technical Summary
The existing vertical shaft planetary mixer transmission device has a complex structure, high manufacturing cost, low reliability, and is inconvenient for inspection and maintenance. It also cannot effectively clean the material adhering to the inner wall of the cylinder.
The transmission structure, which uses a central gear to drive planetary gears to rotate and revolve, combined with the design of a rotating ring and scraper, realizes the compound motion of the stirring components and removes the material adhering to the inner wall of the cylinder by scraping off the material.
The transmission structure has been simplified, improving reliability and ease of maintenance, while effectively preventing material adhesion, thus improving mixing efficiency and cleaning convenience.
Smart Images

Figure CN224308227U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of planetary mixers, specifically relating to a transmission device for a vertical shaft planetary mixer. Background Technology
[0002] Most mixers on the market are vertical shaft planetary mixers, which use the revolution and rotation of the mixing components to act on the materials being mixed. Vertical shaft planetary mixers have high mixing efficiency; the combined motion of the revolution and rotation structures drives the mixing components, allowing the materials to be fully cut, folded, and mixed, resulting in a significant mixing effect. Moreover, compared to traditional mixers, vertical shaft planetary mixers are smaller in size and require less floor space.
[0003] Currently, the transmission devices of existing vertical shaft planetary mixers are complex in structure, have high manufacturing costs, low reliability, and are inconvenient for later inspection and maintenance. During use, they do not have the function of scraping the inner wall of the mixer drum, causing material to adhere to the inner wall of the drum and making it difficult to clean. Therefore, we propose a transmission device for vertical shaft planetary mixers. Utility Model Content
[0004] The purpose of this invention is to provide a transmission device for a vertical shaft planetary mixer to solve the existing problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a transmission device for a vertical shaft planetary mixer, comprising a cylinder cover, a central gear, and an internal gear. A central rotating shaft is movably disposed at the center of the cylinder cover. A central gear is fixedly installed on the outer periphery of the top of the central rotating shaft. Multiple planetary gears are meshed with the outer periphery of the central gear. An internal gear is fixedly installed at the bottom of the cylinder cover by welding. The side of the planetary gear away from the central gear meshes with the inner tooth groove of the internal gear. A rotating shaft is fixedly installed at the center of the planetary gear. A first stirring part and a second stirring part are respectively disposed on the outer periphery of the bottom of the central rotating shaft and the rotating shaft. A rotating ring is movably connected to the inner side of the bottom of the cylinder cover through a bushing. The outer periphery of the rotating ring is fixedly connected to the inner wall of the bushing, and the outer periphery of the bushing is fixedly connected to the inner wall of the bottom of the cylinder cover.
[0006] Preferably, the inner side of the rotating ring is provided with two semi-circular sealing plates, and the sealing plates are fixedly connected to the bottom of the rotating ring by mounting plates provided on both sides of the bottom and mounting screws.
[0007] Preferably, a scraper is fixedly installed on the outside of the second stirring part on the side away from the rotating shaft, and the end of the scraper has a triangular structure.
[0008] Preferably, the bottom of the cylinder cover is provided with a cylinder body, and the scraper extends to the inner wall of the cylinder body and slides in contact with it.
[0009] Preferably, a drive motor is fixedly installed on the top of the cylinder cover, a reducer is fixedly connected to the bottom output shaft end of the drive motor, and the top of the central rotating shaft is fixedly connected to the output shaft end of the reducer.
[0010] Preferably, bearings are provided at the middle end of the central rotating shaft and at the outer periphery of the top end of the rotating shaft. The central rotating shaft is movably connected to the sealing plate through the bearings, and the rotating shaft is movably connected to the rotating ring through the bearings.
[0011] Preferably, a feeding port is provided on the outer side of the top of the cylinder, and the feeding port extends to the inner top of the cylinder.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. By using the central gear to drive the planetary gear to rotate, and cooperating with the internal gear inside the cylinder cover, the planetary gear is driven to rotate while simultaneously rotating on its own axis. This achieves the goal of driving the second stirring unit to revolve around the central axis and rotate on its own axis, thereby achieving efficient mixing. This design simplifies the transmission structure. Furthermore, the rotating ring, sealing plate, and mounting plate facilitate inspection and maintenance, improving the ease of disassembly and assembly.
[0014] 2. By setting scrapers on the outer periphery of the second mixing section, the revolution and rotation of the second mixing section are used to drive the scrapers to intermittently scrape the inner wall of the cylinder, thereby removing the material adhering to the inside of the cylinder and avoiding the situation where the material adheres for a long time, causing the material to solidify and become difficult to clean. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the bottom structure of the cap of this utility model;
[0017] Figure 3 This is a schematic diagram of the internal structure of the cap of this utility model;
[0018] Figure 4 This is a schematic diagram of the internal gear structure of this utility model.
[0019] In the diagram: 1. Cylinder cover; 2. Drive motor; 3. Reducer; 4. Central gear; 5. Planetary gear; 6. Internal gear; 7. Rotating ring; 8. Bushing; 9. Central shaft; 10. First stirring section; 11. Bearing; 12. Rotating shaft; 13. Second stirring section; 14. Scraper; 15. Cylinder body; 16. Feed port; 17. Sealing plate; 18. Mounting plate. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figures 1-4 This utility model provides a transmission device technical solution for a vertical shaft planetary mixer: it includes a cylinder cover, a central gear, and an internal gear. A central rotating shaft is movably arranged at the center of the cylinder cover. A central gear is fixedly installed on the outer periphery of the top of the central rotating shaft. Multiple planetary gears are meshed with the outer periphery of the central gear. An internal gear is fixedly installed at the bottom of the cylinder cover by welding. The side of the planetary gear away from the central gear meshes with the inner tooth groove of the internal gear. A rotating shaft is fixedly installed at the center of the planetary gear. A first stirring part and a second stirring part are respectively arranged on the outer periphery of the bottom of the central rotating shaft and the rotating shaft. A rotating ring is movably connected to the inner side of the bottom of the cylinder cover through a bushing. The outer periphery of the rotating ring is fixedly connected to the inner wall of the bushing. The outer periphery of the bushing is fixedly connected to the inner wall of the bottom of the cylinder cover.
[0022] Specifically, the inner side of the rotating ring is provided with two semi-circular sealing plates, which are fixedly connected to the bottom of the rotating ring by mounting plates on both sides of the bottom and mounting screws.
[0023] Specifically, a scraper is fixedly installed on the side of the second stirring section away from the rotating shaft, and the end of the scraper has a triangular structure.
[0024] Specifically, the bottom of the cylinder cover is provided with a cylinder body, and the scraper extends to the inner wall of the cylinder body and slides in contact with it.
[0025] Specifically, a drive motor is fixedly installed on the top of the cylinder cover, a reducer is fixedly connected to the bottom output shaft end of the drive motor, and the top of the central rotating shaft is fixedly connected to the output shaft end of the reducer.
[0026] Specifically, bearings are provided at the middle end of the central rotating shaft and at the top outer periphery of the rotating shaft. The central rotating shaft is movably connected to the sealing plate through the bearings, and the rotating shaft is movably connected to the rotating ring through the bearings.
[0027] Specifically, a feeding port is provided on the outer side of the top of the cylinder, and the feeding port extends to the inner top of the cylinder.
[0028] In this embodiment, during use, power is output through a drive motor, reduced in speed by a reducer, and then transmitted to the central rotating shaft. The central rotating shaft drives the central gear and the first stirring part to rotate coaxially. The first stirring part stirs and mixes the material in the center of the cylinder. The central gear then drives multiple planetary gears meshing with it on the outer periphery to rotate synchronously. Since the outer side of the planetary gears meshes with the inner gear, and the inner gear is fixedly installed inside the cylinder cover, the planetary gears rotate on their own axis while revolving around the central gear. This causes the planetary gears to drive the rotating shaft to rotate around the central gear while simultaneously rotating on their own axis, thereby driving the second stirring part to rotate around the central gear while simultaneously rotating on its own axis. This uniformly stirs and mixes the material in all positions inside the cylinder. At the same time, the scraper on the outer periphery of the second stirring part intermittently contacts the inner wall of the cylinder to scrape away material, preventing material from adhering to the inner wall of the cylinder and making it difficult to clean. When disassembly and maintenance are required, the screws on the mounting plate can be removed to remove the sealing plate and inspect and maintain the inside of the cylinder cover.
[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A transmission device for a vertical shaft planetary mixer, comprising a cylinder cover (1), a central gear (4), and an internal gear (6), characterized in that: A central rotating shaft (9) is movably disposed at the center of the inner part of the cylindrical cover (1). A central gear (4) is fixedly installed on the outer periphery of the top of the central rotating shaft (9). Multiple planetary gears (5) are meshed with the outer periphery of the central gear (4). An internal gear (6) is fixedly installed at the bottom of the inner part of the cylindrical cover (1) by welding. The side of the planetary gear (5) away from the central gear (4) is meshed with the inner tooth groove of the internal gear (6). A rotating shaft (12) is fixedly installed at the center of the planetary gear (5). A first stirring part (10) and a second stirring part are respectively provided on the outer periphery of the bottom of the central rotating shaft (9) and the rotating shaft (12). Part (13), the bottom inner side of the cylinder cover (1) is movably connected to a rotating ring (7) through a bushing (8). The outer circumference of the rotating ring (7) is fixedly connected to the inner wall of the bushing (8), and the outer circumference of the bushing (8) is fixedly connected to the bottom inner wall of the cylinder cover (1). Two semi-circular sealing plates (17) are provided on the inner side of the rotating ring (7). The sealing plates (17) are fixedly connected to the bottom of the rotating ring (7) through mounting plates (18) provided on both sides of the bottom and mounting screws. A scraper (14) is fixedly installed on the outside of the second stirring part (13) away from the rotating shaft (12). The end of the scraper (14) is a triangular structure.
2. The transmission device for a vertical shaft planetary mixer according to claim 1, characterized in that: The bottom of the cylinder cover (1) is provided with a cylinder body (15), and the scraper (14) extends to the inner wall of the cylinder body (15) and slides in contact with it.
3. The transmission device for a vertical shaft planetary mixer according to claim 1, characterized in that: A drive motor (2) is fixedly installed on the top of the cylinder cover (1), and a reducer (3) is fixedly connected to the bottom output shaft end of the drive motor (2). The top of the central rotating shaft (9) is fixedly connected to the output shaft end of the reducer (3).
4. The transmission device for a vertical shaft planetary mixer according to claim 1, characterized in that: The center shaft (9) and the top outer periphery of the rotating shaft (12) are both provided with bearings (11). The center shaft (9) is movably connected to the sealing plate (17) through the bearings (11), and the rotating shaft (12) is movably connected to the rotating ring (7) through the bearings (11).
5. The transmission device for a vertical shaft planetary mixer according to claim 2, characterized in that: A feeding port (16) is provided on the outer side of the top of the cylinder (15), and the feeding port (16) extends to the inner top of the cylinder (15).