Stirring device

Abstract

The invention discloses a stirring device, and belongs to the technical field of stirring equipment. The device comprises a tank body, a fixed annular gear, a movable annular gear, a power mechanism for driving the movable annular gear, two circular gears symmetrically arranged between the two annular gears, and a rotating shaft connected with the circular gears, wherein the fixed annular gear and the movable annular gear are coaxially arranged and spaced by a certain distance; the cam groups are fixed on the rotating shaft; and the stirring ring is positioned in the tank body. Each stirring ring is connected with the corresponding cam set through a connecting rod, and the cams drive the stirring rings to reciprocate in the longitudinal direction when rotating. The plurality of stirring rings not only perform circumferential stirring together, but also independently move in the longitudinal direction, so that the relative distance between the stirring rings is dynamically changed, and the materials are fully disturbed and mixed. Through layered stirring and longitudinal dynamic movement, the material mixing effect is remarkably improved.

Description

Technical Field

[0001] The invention relates to the technical field of stirring equipment, in particular to a stirring device. Background Art

[0002] At present, conventional stirring equipment generally uses fixed blades to stir materials in a single direction, and different stirring effects are achieved by replacing different blades. Although such stirring equipment can stir conventional materials, the mixing effect of the upper and lower layers of materials that are easy to stratify, such as cosmetic emulsions, drug suspensions, etc., is still not ideal. Therefore, existing technicians have tried to provide some stirrers that can achieve left-right and up-and-down movements of the stirrer.

[0003] For example, Chinese patent CN 219091739 U discloses a water-based stirring device, which drives the stirring blades on the stirring shaft to rotate forward and reversely through a driving component so that the water-based agent in the box moves up and down to merge. Compared with the general stirring in a single direction, the stirring effect is better. However, the problem is that the forward and reverse angles of the stirring blades are limited by the driving component, and it is difficult to achieve sufficient mixing of the upper and lower layers; Chinese patent CN 114158961 B discloses a stirring device and a household dough stirring machine, which realizes the left and right movement of the stirrer by setting the differential movement of the rotating disc and the annular slide, but the device cannot fully mix the upper and lower layers of materials. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a stirring device, which is provided with multiple stirring rings, each stirring ring simultaneously performs circular stirring and moves up and down. At the same time, each stirring ring stirs at different positions in the longitudinal direction, so that the material mixing is more uniform.

[0005] In order to achieve the above object, the solution provided by the present invention is as follows: A stirring device, comprising: Tank; Two coaxially arranged annular gears with a certain distance between them, wherein one annular gear is relatively stationary with respect to the tank body, and the other annular gear can freely rotate around the central axis, which is called a movable annular gear; A power mechanism for driving the movable ring gear to rotate; Two circular gears are symmetrically arranged between the two ring gears, and each circular gear is meshed with the two ring gears; A rotating shaft with two circular gears connected to both ends, wherein one circular gear is fixedly connected to the rotating shaft to drive the rotating shaft to rotate; At least two cam groups fixedly connected to the rotating shaft, each cam group comprising two cams symmetrically arranged at both ends of the rotating shaft, each cam group being arranged at intervals along the axial direction of the rotating shaft, and two adjacent cam groups being staggered along the circumferential direction of the rotating shaft; A stirring ring is located in the tank body, and each cam group corresponds to a stirring ring. Each stirring ring is connected to two cams in the corresponding cam group via two connecting rods. All stirring rings are nested and arranged, and when the cam rotates, the stirring ring is driven to reciprocate in the longitudinal direction.

[0006] As a specific implementation manner of the present invention, it also includes a limiting mechanism for limiting the connecting rods to be parallel to each other.

[0007] Furthermore, the limiting mechanism includes a vertical rod, which extends along the center line of the movable ring gear, and the upper end of the vertical rod is fixedly connected to the movable ring gear, and the lower end is fixedly connected to a horizontally arranged guide block, and a longitudinally extending guide hole is provided in the guide block, each connecting rod is equipped with a guide hole, and the connecting rod is inserted into the corresponding guide hole and slidably connected thereto.

[0008] Furthermore, a bearing hole is provided in the middle of the vertical rod, and the rotating shaft passes through the bearing hole and is rotatably connected thereto.

[0009] Furthermore, the limiting mechanism includes a vertical rod, the upper end of which is rotatably connected to the rotating shaft, the lower end of which is inserted into the annular hole at the bottom of the tank body and rotatably connected thereto, the middle part of the vertical rod is fixedly connected to a horizontally arranged guide block, the guide block is provided with a longitudinally extending guide hole, each connecting rod is equipped with a guide hole, and the connecting rod is inserted into the corresponding guide hole and slidably connected thereto.

[0010] As a specific embodiment of the present invention, an annular track groove is provided on the annular side wall of the cam, and a connecting key is provided on the upper end of the connecting rod. The connecting key of the connecting rod is inserted into the track groove, so that the connecting rod is slidably connected with the cam key groove.

[0011] As a specific embodiment of the present invention, the connecting rod is provided with a boss, and each connecting rod is provided with a spring for pushing the upper end of the connecting rod to move upward and abut against the annular side wall of the cam.

[0012] As a specific implementation of the present invention, the angles between the half sections of two adjacent cam groups extending along the axial direction of the rotating shaft are equal.

[0013] As a specific implementation of the present invention, the angle between the half sections of two adjacent cam groups extending along the axial direction of the rotating shaft is equal to 360° divided by the number of cam groups.

[0014] Compared with the existing technology, it has the following advantages: The present invention arranges a plurality of stirring rings for layered stirring. Compared with the existing layered stirring device, the stirring rings in the present invention not only perform circular stirring together, but also move independently in the longitudinal direction. The relative distance between the stirring rings in the longitudinal direction is in dynamic change, which is beneficial to changing the disturbance of the fluid in various places in the tank body and reducing the dead zone volume, so that the material can be fully stirred so that the material can be fully mixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of a specific implementation of the stirring device of the present invention; Figure 2 for Figure 1 A schematic diagram of the combined structure of the middle cam group and the rotating shaft; Figure 3 for Figure 2 The main view of Figure 4 for Figure 2 Distribution diagram of the four cam groups; Figure 5 for Figure 1 Schematic diagram of the structure of the stirring ring; Figure 6 for Figure 1 Schematic diagram of the connection structure between the middle cam and the connecting rod; Figure 7 for Figure 1 Schematic diagram of the structure of the middle guide block and the movable ring gear; Figure 8 This is a structural schematic diagram of another specific implementation of the stirring device of the present invention; Fig. 9 for Figure 8 Schematic diagram of the connection structure between the middle cam and the connecting rod; In the figure: tank body 100, ring gear 200, power mechanism 300, circular gear 400, rotating shaft 500, cam group 600, stirring ring 700, limiting mechanism 800, annular hole 110, fixed annular gear 210, movable annular gear 220, first circular gear 410, second circular gear 420, first cam 610, second cam 620, connecting rod 710, stirring paddle 720, vertical rod 810, guide block 820, first bracket 910, second bracket 920, third bracket 930, half section 940, boss 711, spring 712, bearing hole 811, guide hole 821, bearing 921. DETAILED DESCRIPTION

[0016] The present invention will be further described in detail below in conjunction with embodiments and drawings, but the embodiments of the present invention are not limited thereto.

[0017] Example: Please refer to Figures 1 to 9, which shows the structure of two different specific embodiments of the stirring device of the present invention, the stirring device of the present invention comprises a tank body 100, a ring gear 200, a power mechanism 300, a circular gear 400, a rotating shaft 500, a cam group 600 and a stirring ring 700. In the present invention, the tank body 100 is used to store materials that need to be mixed. A normal pressure container or a high pressure container can be selected as the tank body 100 as needed. The materials can be added to the tank body 100 through the opening at the top of the tank body 100. Of course, an opening can also be provided on the tank body 100 as a passage for the materials to enter and exit the tank body 100. For example, it is common to provide an opening at the bottom of the tank body 100. There are two ring gears 200, the two ring gears 200 are coaxially arranged, and the two are arranged up and down and spaced a certain distance apart, for accommodating the circular gear 400, one of the ring gears 200 is relatively stationary with respect to the tank body 100, for example, the ring gear 200 can be fixed on the tank body 100, for example Figure 1 As shown, the ring gear 200 is fixed to the outer wall of the tank body 100 via the first bracket 910. This ring gear 200 is called the fixed ring gear 210. The other ring gear 200 can rotate freely around the central axis and is called the movable ring gear 220. Figure 1 As shown, the side wall of the movable annular gear 220 is supported on the tank body 100 via the second bracket 920, and a bearing 921 is arranged between the second bracket 920 and the annular outer wall of the movable annular gear 220 (the second bracket 920 is fixedly connected to the outer ring of the bearing 921, and the movable annular gear 220 is fixedly connected to the inner ring of the bearing 921), so that the two are rotationally connected. The power mechanism 300 is used to drive the movable annular gear 220 to rotate, so that the two annular gears 200 rotate relative to each other. There are two circular gears 400, and the two circular gears 400 are symmetrically arranged between the two annular gears 200, and each circular gear 400 is meshed with the two annular gears 200. Therefore, when the two annular gears 200 rotate relative to each other, the two circular gears 400 will be driven to rotate in the opposite direction. The two ends of the rotating shaft 500 are respectively connected to the two circular gears 400, as shown in FIG. Figure 1As shown, the two circular gears 400 are respectively a first circular gear 410 and a second circular gear 420, wherein the first circular gear 410 is coaxially fixedly connected to the rotating shaft 500, and the second circular gear 420 is coaxially rotatably connected to the rotating shaft 500. Therefore, when the two annular gears 200 rotate relative to each other, the two circular gears 400 will be driven to rotate in the opposite direction, and the first circular gear 410 will drive the rotating shaft 500 to rotate. On the one hand, this can make the two circular gears 400 move around the fixed annular gear 210, that is, make the rotating shaft 500 rotate relative to the circumference of the tank body 100. On the other hand, this can drive the circular gears 400 to rotate, thereby driving the rotating shaft 500 to rotate. There are at least two cam groups 600, and both are fixedly connected to the rotating shaft 500, so that they will rotate synchronously with the rotating shaft 500. Each cam group 600 includes two cams, namely a first cam 610 and a second cam 620. The two cams are symmetrically arranged at both ends of the rotating shaft 500. Each cam group 600 is arranged at intervals along the axial direction of the rotating shaft 500. The two adjacent cam groups 600 are staggered along the circumferential direction of the rotating shaft 500. Along the axial direction of the rotating shaft 500, the two cams of the same cam group 600 overlap with each other and are spaced a certain distance apart. Each cam group 600 is correspondingly provided with a stirring ring 700, and the stirring ring 700 is located in the tank body 100. The stirring rings 700 are nested (the diameters of the stirring rings 700 are different, and the projections on the bottom of the tank body 100 do not intersect), so that each stirring ring 700 has space to move freely up and down, such as Figure 1 As shown, each stirring ring 700 is arranged coaxially, and the diameter of each stirring ring 700 increases stepwise from the inside to the outside. Each stirring ring 700 is connected to two cams in the corresponding cam group 600 via two connecting rods 710; when the cam rotates, the connecting rod 710 is driven to move freely back and forth in the longitudinal direction, thereby stirring materials of different depths.

[0018] When the present invention is in use, the power mechanism 300 drives the movable ring gear 220 to rotate, thereby driving the circular gear 400 to rotate, and the first circular gear 410 drives the rotating shaft 500 to rotate, and then drives the cam group 600 to rotate through the rotating shaft 500. When each group of cam groups 600 rotates, it will drive the connecting rod 710 to move longitudinally, thereby raising and lowering the stirring ring 700 to stir materials at different depths. At the same time, when the circular gear 400 rotates, it will move around the fixed ring gear 210, which will drive the entire rotating shaft 500 to rotate around the ring gear 200, thereby driving all the stirring rings 700 to move in a synchronous circular motion. Therefore, the present invention can achieve horizontal and longitudinal multi-dimensional dynamic stirring, especially the relative distance of each stirring ring 700 in the longitudinal direction is constantly changing, which is conducive to changing the stirring force, disturbing the flow state of materials in various places, and reducing the volume of the dead zone, thereby achieving sufficient mixing of the materials.

[0019] In the present invention, a stirring paddle 720 is provided on the stirring ring 700 to disturb the material. The shape and arrangement of the stirring paddle 720 can be selected as required, for example, Figure 5 As shown, a plurality of stirring paddles 720 are arranged on the stirring ring 700 in a radial annular array along the stirring ring 700 .

[0020] In the present invention, two adjacent groups of cam sets 600 are staggered along the circumferential direction of the rotating shaft 500, that is, the angle between the half sections 940 of the two adjacent groups of cam sets 600 extending along the axial direction of the rotating shaft 500 is greater than 0°. In some embodiments, the angles between the half sections 940 of the two adjacent groups of cam sets 600 extending along the axial direction of the rotating shaft 500 are equal. Further, in other embodiments, the angle between the half sections 940 of the two adjacent groups of cam sets 600 extending along the axial direction of the rotating shaft 500 is equal to 360° divided by the number of cam sets 600, such as Figures 2 to 4 As shown, it includes four cam groups 600, and the angle between the half-sections 940 of two adjacent cam groups 600 extending axially along the rotating shaft 500 is 90°, which is conducive to step stirring. After such arrangement, there will never be a situation where multiple (three or more) stirring rings 700 are at the same horizontal height at any time, which is convenient for stirring materials at different heights.

[0021] In some embodiments, a limiting mechanism 800 is further included to limit the connection rods 710 to be parallel to each other to prevent the stirring rings 700 from swinging horizontally. Figure 1 and Figure 7 As shown, the limiting mechanism 800 includes a vertical rod 810, which extends along the center line of the movable ring gear 220. The upper end of the vertical rod 810 is fixedly connected to the movable ring gear 220 via the third bracket 930, and the lower end is fixedly connected to the horizontally arranged guide block 820. The guide block 820 is provided with a longitudinally extending guide hole 821. Each connecting rod 710 is equipped with a guide hole 821, and the connecting rod 710 is inserted into the corresponding guide hole 821 and slidably connected thereto. In addition, a bearing hole 811 can be provided in the middle of the vertical rod 810, and the rotating shaft 500 passes through the bearing hole 811 and is rotatably connected thereto. In other embodiments, such as Figure 8 As shown, the limiting mechanism 800 includes a vertical rod 810, the upper end of which is also rotatably connected to the rotating shaft 500, and the lower end is inserted into the annular hole 110 at the bottom of the tank body 100 and rotatably connected thereto, the middle part of the vertical rod 810 is fixedly connected to a horizontally arranged guide block 820, and a longitudinally extending guide hole 821 is provided in the guide block 820, each connecting rod 710 is equipped with a guide hole 821, and the connecting rod 710 is inserted into the corresponding guide hole 821 and slidably connected thereto.

[0022] In some embodiments, Figure 2 and Figure 6 As shown, an annular track groove is provided on the annular side wall of the cam, and a connecting key is provided on the upper end of the connecting rod 710. The connecting key of the connecting rod 710 is inserted into the track groove, so that the connecting rod 710 is slidably connected with the cam key groove. In other embodiments, a boss 711 extending radially outward is provided in the middle of the connecting rod 710, and each connecting rod 710 is provided with a spring 712 for pushing the upper end of the connecting rod 710 to move upward and abut against the annular side wall of the cam.

[0023] The power mechanism 300 in the present invention is used to drive the movable ring gear 220 to rotate. There are many specific implementation methods. For example, in some embodiments, the power mechanism 300 includes a motor fixedly connected to the second bracket 920, and a driving gear coaxially fixedly connected to the motor output shaft. The driving gear is meshed with the movable ring gear 220, thereby driving the ring gear 200 to rotate through the motor.

[0024] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed in the embodiments of the present invention should be covered within the protection scope of the present invention.

Claims

1. A stirring device, characterized in that: include: Tank; Two coaxially arranged annular gears with a certain distance between them, wherein one annular gear is relatively stationary with respect to the tank body, and the other annular gear can freely rotate around the central axis, which is called a movable annular gear; A power mechanism for driving the movable ring gear to rotate; Two circular gears are symmetrically arranged between the two ring gears, and each circular gear is meshed with the two ring gears; A rotating shaft with two circular gears connected to both ends, wherein one circular gear is fixedly connected to the rotating shaft to drive the rotating shaft to rotate; At least two cam groups fixedly connected to the rotating shaft, each cam group comprising two cams symmetrically arranged at both ends of the rotating shaft, each cam group being arranged at intervals along the axial direction of the rotating shaft, and two adjacent cam groups being staggered along the circumferential direction of the rotating shaft; A stirring ring is located in the tank body, and each cam group corresponds to a stirring ring. Each stirring ring is connected to two cams in the corresponding cam group via two connecting rods. All stirring rings are nested and arranged, and when the cam rotates, the stirring ring is driven to reciprocate in the longitudinal direction.

2. The stirring device according to claim 1, characterized in that: It also includes a limiting mechanism for limiting the connection rods to be parallel to each other.

3. The stirring device according to claim 2, characterized in that: The limiting mechanism includes a vertical rod, which extends along the center line of the movable ring gear. The upper end of the vertical rod is fixedly connected to the movable ring gear, and the lower end is fixedly connected to a horizontally arranged guide block. A longitudinally extending guide hole is provided in the guide block. Each connecting rod is equipped with a guide hole, and the connecting rod is inserted into the corresponding guide hole and slidably connected thereto.

4. The stirring device according to claim 3, characterized in that: A bearing hole is provided in the middle of the vertical rod, and the rotating shaft passes through the bearing hole and is rotatably connected thereto.

5. The stirring device according to claim 2, characterized in that: The limiting mechanism includes a vertical rod, which extends along the center line of the movable ring gear. The upper end of the vertical rod is rotatably connected to the rotating shaft, and the lower end is inserted into the annular hole at the bottom of the tank body and rotatably connected thereto. The middle part of the vertical rod is fixedly connected to a horizontally arranged guide block, and a longitudinally extending guide hole is provided in the guide block. Each connecting rod is equipped with a guide hole, and the connecting rod is inserted into the corresponding guide hole and slidably connected thereto.

6. The stirring device according to claim 1, characterized in that: An annular track groove is provided on the annular side wall of the cam, and a connecting key is provided on the upper end of the connecting rod. The connecting key of the connecting rod is inserted into the track groove, so that the connecting rod is slidably connected with the cam key groove.

7. The stirring device according to claim 1, characterized in that: The connecting rods are provided with bosses, and each connecting rod is provided with a spring for pushing the upper end of the connecting rod to move upward and abut against the annular side wall of the cam.

8. The stirring device according to claim 1, characterized in that: The included angles between the half sections of two adjacent cam groups extending along the axial direction of the rotating shaft are equal.

9. The stirring device according to claim 8, characterized in that: The angle between the half sections of two adjacent cam groups extending along the axial direction of the rotating shaft is equal to 360° divided by the number of cam groups.

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