A multi-mode composite stirring device

Abstract

The present application relates to the technical field of mixers, and discloses a multi-mode composite stirring device, which comprises a stirring barrel, a driving source, an input shaft, a lower stirring mechanism, a driving gear and an upper stirring mechanism; the upper stirring mechanism comprises a cover body, a transmission shaft, a transition gear connected with the transmission shaft and a second stirring shaft connected with the transmission shaft; the second stirring shaft is configured to realize at least one of the following working states: a first working state, in which the second stirring shaft is configured to rotate only around the axis of the input shaft; a second working state, in which the second stirring shaft is configured to rotate around the axis of the input shaft while rotating around its own axis; and a third working state, in which the second stirring shaft is configured to rotate only around its own axis. The lower stirring mechanism and the upper stirring mechanism are arranged, and the upper stirring mechanism can be in three working states, so that the upper and lower layers work cooperatively, and the adaptation capability and the mixing efficiency of the stirring device are significantly improved.

Description

Technical Field

[0001] This invention relates to the field of mixer technology, and more specifically to a multi-mode composite mixing device. Background Technology

[0002] Mixing devices are fundamental equipment widely used in industries such as chemical engineering, building materials, and food processing, and their performance directly affects mixing quality and production efficiency. Existing mixing equipment can be mainly divided into two categories: vertical mixers and horizontal mixers. Vertical mixers are widely used due to their compact structure and ease of operation. However, existing vertical mixing devices have inherent limitations in their mixing mechanism. Most vertical mixers use a single blade rotation method for mixing, resulting in a single mixing motion mode. This makes it difficult to create sufficient material convection within the mixing chamber, easily leading to uneven radial distribution of materials. This is especially problematic when processing multi-component materials with different specific gravities or viscosities, easily causing stratification, segregation, and dead zones. Therefore, a multi-level, multi-mode composite mixing device is needed. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a multi-mode composite stirring device. By setting up a lower stirring mechanism and an upper stirring mechanism, and enabling the upper stirring mechanism to operate in three different states, the upper and lower layers work together, significantly improving the adaptability and mixing efficiency of the stirring device.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a multi-mode composite stirring device, comprising... A mixing tank, which is arranged to form a mixing chamber; The drive source is located below the mixing tank; The input shaft is vertically positioned within the stirring chamber and is driven to rotate by a drive source. The lower stirring mechanism includes a first stirring shaft connected to the input shaft; The drive gear is fixedly sleeved on the outside of the input shaft; The upper stirring mechanism is located above the lower stirring mechanism. The upper stirring mechanism includes a cover sleeved on the outside of the input shaft, a drive shaft rotatably and horizontally passing through the side wall of the cover, a transition gear connected to one end of the drive shaft inside the cover, and a second stirring shaft connected to one end of the drive shaft outside the cover. The transition gear meshes with the drive gear located below it; The cover is positioned above the upper stirring mechanism and is fixedly connected to the stirring tank by a fixing rod. The second stirring shaft is configured to achieve at least one of the following operating states: First operating state: The second stirring shaft is configured to rotate only about the axis of the input shaft; The second working state: The second stirring shaft is configured to rotate around its own axis while simultaneously rotating around the input shaft axis; The third working state: the second stirring shaft is configured to rotate only about its own axis.

[0005] Furthermore, when the second stirring shaft is in the first working state, the cover is rotatably connected to the input shaft; the upper gear is fixedly connected to the cover body, and the upper gear meshes with the transition gear; a bearing is provided at the end of the transmission shaft, and the transmission shaft is rotatably connected to the transition gear through the bearing.

[0006] Furthermore, when the second stirring shaft is in the second working state, the cover is rotatably connected to the input shaft; the upper gear is fixedly connected to the cover body, and the upper gear meshes with the transition gear; the transmission shaft is fixedly connected to the transition gear.

[0007] Furthermore, when the second stirring shaft is in the third working state, the cover body is fixedly connected to the sealing body and rotatably connected to the input shaft; the transmission shaft is fixedly connected to the transition gear.

[0008] The beneficial effects of this invention are: 1. By switching some components, the upper stirring mechanism allows the upper stirring shaft to flexibly switch between three different motion states as needed: rotation only, rotation and self-rotation synchronously, and self-rotation only. The lower stirring mechanism maintains rotation, and the upper and lower layers work together to adapt to various stirring conditions, expanding the applicability of a single stirring device.

[0009] 2. The combined motion of rotation and self-rotation can achieve all-round coverage of the stirring blades, overcoming the low-efficiency stirring zone and material stratification defects of traditional stirring equipment.

[0010] 3. The upper and lower mixing mechanisms share the same input shaft drive, eliminating the need for a separate upper mixing mechanism drive motor. This results in a simple and compact structure that reduces the overall energy consumption of the equipment, aligning with the principles of energy conservation and environmental protection. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the three-dimensional structure; Figure 2 This is a schematic diagram of the structure of Example 1; Figure 3 This is a schematic diagram of the structure of Example 2; Figure 4 This is a schematic diagram of the second stirring shaft in its rotational state in Example 2; Figure 5 This is a schematic diagram of the structure of Example 3.

[0012] In the diagram: 1. Mixing tank; 2. Input shaft; 3. Drive source; 4. First mixing shaft; 5. Cover; 6. Second mixing shaft; 7. Transmission shaft; 8. Transition gear; 9. Bearing; 10. Cover body; 11. Upper gear plate; 12. Fixing rod; 14. Drive gear. Detailed Implementation

[0013] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings and specific examples. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0014] The directional terms mentioned in this invention, such as "up", "down", "front", "back", "left", "right", "inner", "outer", "side", "top" and "bottom", are only for reference to the orientation of the accompanying drawings. The directional terms used are for the purpose of explaining and understanding this invention and are not absolute limitations on the actual use.

[0015] Example 1: like Figures 1-4 As shown, a multi-mode composite stirring device includes a stirring tank 1, a drive source 3, an input shaft 2, a lower stirring mechanism, a drive gear 14, an upper stirring mechanism, a cover body 10, and an upper gear disc 11. A mixing tank 1 is arranged to form a mixing chamber; a drive source 3 is located below the mixing tank 1; an input shaft 2 is vertically arranged inside the mixing chamber and is driven to rotate by the drive source 3; the lower mixing mechanism includes a first mixing shaft 4 connected to the input shaft 2; a drive gear 14 is fixedly sleeved on the outside of the input shaft 2 and is located inside the cover 5. The upper stirring mechanism is located above the lower stirring mechanism. The upper stirring mechanism includes a cover 5 sleeved on the outside of the input shaft 2, a drive shaft 7 horizontally passing through the side wall of the cover 5, a transition gear 8 connected to one end of the drive shaft 7 inside the cover 5, and a second stirring shaft 6 connected to one end of the drive shaft 7 outside the cover 5. In this embodiment, the drive shaft 7 is fixedly connected to the cover 5. The cover 5 is rotatably connected to the input shaft 2. A labyrinth seal is provided between the cover 5 and the input shaft 2. The labyrinth seal can adopt the technical solution of our company's previous application number 2026202461354, entitled "A Spiral Shaft Labyrinth Seal Device for Conveying Powdered Materials". In the first working state, a gap may be provided between the cover 5 and the cap 10 to prevent movement interference, or a sealing mode may be set and a relatively rotatable component may be used, such as a turntable for applying lubricating oil; a labyrinth seal may be provided between the cover 5 and the cap 10.

[0016] The cover 5 is a hollow structure, and both the upper and lower sides are closed. The side wall of the cover 5 has a through hole, and a bearing is installed in the through hole. A drive shaft 7 is installed in the bearing, and the drive shaft 7 can rotate relative to the through hole through the bearing. The first stirring shaft 4 is provided with several lower stirring blades connected to its lower end. The second stirring shaft 6 is provided with several stirring blades. The transition gear 8 meshes with the drive gear 14 located below it; The cover body 10 is located above the upper stirring mechanism and is fixedly connected to the stirring tank 2 by a fixing rod 12; The upper gear 11 is located inside the cover 5. A vertical shaft is provided in the middle of the cover 10. The vertical shaft passes through the inside of the cover 5, and the upper gear 11 is fixed on the vertical shaft. The upper gear 11 is fixedly connected to the cover 10, and the upper gear 11 meshes with the transition gear 8. A bearing 9 is provided at the end of the transmission shaft 7. The transmission shaft 7 is rotatably connected to the transition gear 8 through the bearing 9. The drive gear 14 rotates to drive the transition gear 8, thereby causing the second stirring shaft 6 to drive the cover 5 to rotate around the axis of the input shaft 2.

[0017] Example 2: Unlike Embodiment 1, the upper gear 11 is fixedly connected to the cover body 10, and the upper gear 11 meshes with the transition gear 8; the drive shaft 7 is fixedly connected to the transition gear 8, so that the second stirring shaft 6 rotates around its own axis while rotating around the axis of the input shaft 2. The cover body 5 is rotatably connected to the input shaft 2. In the second working state, there is a gap between the cover body 5 and the cover body 10 to prevent motion interference; or a sealing mode is set and a relatively rotatable component is used, such as a turntable for applying lubricating oil; in this embodiment, the drive shaft 7 is rotatably connected to the cover body 5.

[0018] Example 3: Unlike Embodiment 1, in the third working state, the cover 5 is fixedly connected to the capping body 10 and can rotate relative to the input shaft 2. The cover 5 can be rotatably set with the input shaft 2, or a gap can be left between them to avoid mutual interference. In this embodiment, the transmission shaft 7 is rotatably connected to the cover 5.

[0019] The drive shaft 7 is fixedly connected to the transition gear 8.

[0020] The upper stirring mechanism allows the upper stirring shaft to flexibly switch between three different motion states—rotation only, synchronous rotation and self-rotation, and self-rotation only—by switching some components. The lower stirring mechanism maintains rotation, and the two layers work together to adapt to various stirring conditions, expanding the applicability of a single stirring device.

[0021] Example 4: Unlike Embodiment 1, the second stirring shaft 6 can be configured with two of the components corresponding to the three working states at the same time, or with any two of the components corresponding to the working states at the same time.

[0022] The above description is only used to illustrate the technical solution of the present invention and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of the present invention, as long as they do not depart from the spirit and scope of the technical solution of the present invention, should be covered within the scope of the claims of the present invention.

Claims

1. A multi-mode composite stirring device, characterized in that: include A mixing tank (1) is provided to form a mixing chamber. The drive source (3) is located below the mixing tank (1); The input shaft (2) is vertically arranged in the stirring chamber and is driven to rotate by the drive source (3); The lower stirring mechanism includes a first stirring shaft (4) connected to the input shaft (2). The drive gear (14) is fixedly sleeved on the outside of the input shaft (2); The upper stirring mechanism is located above the lower stirring mechanism; The cover (10) is located above the upper stirring mechanism and is fixedly connected to the stirring tank (1) by a fixing rod (12); The upper stirring mechanism includes The cover (5) is fitted onto the outside of the input shaft (2); The drive shaft (7) is horizontally inserted through the side wall of the cover (5) and fixedly or rotatably connected to it; The transition gear (8) is connected to one end of the drive shaft (7) inside the cover (5); The second stirring shaft (6) is connected to the drive shaft (7) at one end outside the cover (5); The transition gear (8) meshes with the drive gear (14) located below it; The second stirring shaft (6) is configured to achieve at least one of the following operating states: First operating state: The second stirring shaft (6) is configured to rotate only about the axis of the input shaft (2); The second working state: the second stirring shaft (6) is configured to rotate around its own axis while rotating around the axis of the input shaft (2); The third working state: the second stirring shaft (6) is configured to rotate only about its own axis.

2. The multi-mode composite stirring device according to claim 1, characterized in that: When the second stirring shaft (6) is in the first working state, the cover (5) is rotatably connected to the input shaft (2); the upper gear (11) is fixedly connected to the cover (10), and the upper gear (11) meshes with the transition gear (8); the end of the transmission shaft (7) is provided with a bearing (9), and the transmission shaft (7) is rotatably connected to the transition gear (8) through the bearing (9); the transmission shaft (7) is fixedly connected to the cover (5).

3. The multi-mode composite stirring device according to claim 1, characterized in that: When the second stirring shaft (6) is in the second working state, the cover (5) is rotatably connected to the input shaft (2); the upper gear (11) is fixedly connected to the cover (10), and the upper gear (11) meshes with the transition gear (8); the transmission shaft (7) is fixedly connected to the transition gear (8); and the transmission shaft (7) is rotatably connected to the cover (5).

4. The multi-mode composite stirring device according to claim 1, characterized in that: When the second stirring shaft (6) is in the third working state, the cover (5) is fixedly connected to the cover body (10) and rotatably connected to the input shaft (2); the transmission shaft (7) is fixedly connected to the transition gear (8); the transmission shaft (7) is rotatably connected to the cover (5).

5. The multi-mode composite stirring device according to claim 1, characterized in that: When the second stirring shaft (6) is in the first or second working state, the cover (5) is rotatably connected to the input shaft (2) and rotatably connected to the cover body (10).

6. The multi-mode composite stirring device according to claim 1, characterized in that: Labyrinth seals are provided between the cover (5) and the input shaft (2) and between the cover (5) and the cap 10.

Images