A granular material mixing and stirring device

Abstract

The present invention relates to the field of mixing technology, and particularly relates to a particle material mixing and stirring device, which includes a stirring cylinder and a stirring device; the stirring device includes a rotating ring and a one-way component; the rotating ring is rotatably installed on the stirring shaft; a plurality of stirring blade assemblies are annularly distributed on the side wall of the rotating ring; when the stirring shaft rotates, the one-way component enables the rotating ring to drive the stirring blade assemblies and the stirring shaft to rotate synchronously. When the stirring shaft stops rotating and the material rotates the rotating ring through the stirring blade assemblies under the action of inertia, the one-way component allows the rotating ring to rotate relative to the stirring shaft, so as to buffer the impact force acting on the circumferential direction of the stirring shaft due to inertia when the stirring shaft stops rotating, and avoid damage to the stirring shaft caused by the impact.

Description

Technical Field

[0001] The present invention relates to the field of mixing technology, and particularly to a particle material mixing and stirring device. Background Art

[0002] A particle material mixing and stirring device is a mechanical device used to uniformly mix different types of particle materials. Such devices are widely used in multiple industries such as chemical engineering, pharmaceuticals, food, and feed, and are crucial for ensuring the consistency and stability of product quality.

[0003] In the prior art, as disclosed in a Chinese patent with the publication number CN118904185B and the title of a mixer with a non-directly locked drive stirring shaft, the technical solution records that the stirring shaft body is connected to the output shaft of the drive motor through a coupling body. A limiting mechanism is sleeved on the outer wall of the coupling body. The limiting mechanism can limit the lateral torque direction of the coupling body. A connecting mechanism is installed on the outer wall of the limiting mechanism, and the left and right swaying of the coupling body is restricted by the limiting mechanism. Moreover, when the stirring shaft body loses driving force, its left and right swaying inertia is converted into vertical movement under the action of the limiting mechanism, thereby transferring the impact force of the material originally received on the stirring shaft body to the limiting mechanism, reducing the impact force on the stirring shaft. However, the impact force is transferred to the limiting mechanism, increasing the possibility of damage to the limiting mechanism, thereby affecting the stirring effect. Summary of the Invention

[0004] The present invention provides a particle material mixing and stirring device to solve the above problems.

[0005] A particle material mixing and stirring device of the present invention adopts the following technical solution: A particle material mixing and stirring device includes a stirring cylinder and a stirring device; the stirring cylinder is arranged vertically along its axis; a stirring shaft is coaxially arranged inside the stirring cylinder; the stirring shaft is rotationally matched with the stirring cylinder; a plurality of stirring devices are distributed vertically along the axis of the stirring shaft; the stirring device includes a rotating ring and a one-way component; the rotating ring is coaxially sleeved on the stirring shaft, and the rotating ring is rotatably installed on the stirring shaft; a plurality of stirring blade assemblies are annularly distributed on the side wall of the rotating ring. The stirring blade assembly includes a mounting frame and a limiting component; there are a plurality of mounting frames, which are distributed circumferentially along the rotating ring; the mounting frame is provided with blades inclined up and down; the mounting frame is rotatably installed on the side wall of the rotating ring through a hinged component around a horizontal axis; when the stirring shaft rotates and stirs, the limiting component is used to limit the rotation between the mounting frame and the rotating ring, and when the stirring shaft stops rotating, the rotation limit between the mounting frame and the rotating ring is released, so that when the stirring shaft stops rotating and when the mounting frame and the blades are impacted by the inclined material, the mounting frame rotates around the horizontal axis to buffer the impact in the inclined direction of the material and prevent the stirring shaft from being impacted.

[0006] The one-way component is arranged between the swivel ring and the stirring shaft; when the stirring shaft rotates, the one-way component enables the swivel ring to drive the stirring blade assembly and the stirring shaft to rotate synchronously. When the stirring shaft stops rotating and the material rotates the swivel ring through the stirring blade assembly under the action of inertia, the one-way component allows the swivel ring to rotate relative to the stirring shaft, so as to buffer the impact force acting on the circumferential direction of the stirring shaft due to inertia when the stirring shaft stops rotating, and avoid damage to the stirring shaft caused by the impact.

[0007] Further, the hinge assembly includes a hinge seat and a connecting plate; the hinge seat is fixed on the outer side wall of the swivel ring; two ear plates are provided on the hinge seat; the two ear plates are radially symmetric about the swivel ring; the ear plates are fixed at one end of the hinge seat away from the swivel ring; the connecting plate is fixed at one end of the mounting frame close to the swivel ring and is located between the two ear plates; a hinge shaft is fixed at one end of the connecting plate close to the swivel ring; the axis of the hinge shaft is horizontally arranged and is arranged tangentially along the swivel ring; the hinge shaft is rotatably mounted on the ear plates; a torsion spring is connected between the hinge shaft and the ear plates.

[0008] Further, the limiting assembly includes a top block, a mating plate, an intermediate plate, and an auxiliary structure; there are two top blocks, which are symmetrically distributed above and below both sides of the hinge shaft and are located on the side of the hinge shaft away from the swivel ring; the top blocks are fixed at the upper and lower ends of the connecting plate; there are two mating plates, which are symmetrically distributed above and below both sides of the hinge shaft and are located on the side of the hinge shaft close to the swivel ring; the mating plates are arranged between the two ear plates; the mating plates are fixedly connected to the upper and lower ends of the ear plates and are fixedly connected to the hinge seat; the intermediate plate is arranged between the hinge shaft and the hinge seat and is located between the two mating plates; one end of the intermediate plate close to the hinge seat is fixedly connected to the hinge seat; a limiting groove is formed between the mating plate and the intermediate plate; a limiting plate is slidably mounted in the limiting groove; the auxiliary structure is arranged between the swivel ring and the hinge seat; when the stirring shaft rotates, the auxiliary structure makes one end of the limiting plate away from the swivel ring abut against the top block, and the end close to the swivel ring is inserted into the limiting groove to limit the rotation of the mounting frame. When the stirring shaft stops rotating, it drives the limiting plate to move towards the swivel ring and slide into the limiting groove to release the rotation limit between the mounting frame and the swivel ring.

[0009] Further, the auxiliary structure includes a permanent magnet block, an electromagnet, and a controller; the permanent magnet block is fixed at one end of the limiting plate close to the swivel ring; the electromagnet is fixed in the limiting groove and is located at one end of the limiting groove close to the swivel ring; when the stirring shaft rotates, the controller makes the magnetic properties of the electromagnet and the permanent magnet block the same, and there is a repulsive force between the permanent magnet block and the electromagnet, so that the limiting plate moves away from the swivel ring, and one end of the limiting plate away from the swivel ring abuts against the top block. When the stirring shaft stops rotating, the controller changes the current direction of the electromagnet, makes the magnetic properties of the electromagnet and the permanent magnet block opposite, and there is an attractive force between the permanent magnet block and the electromagnet, so that the limiting plate moves close to the swivel ring, and one end of the limiting plate close to the swivel ring abuts against the electromagnet, causing the limiting plate to move towards the swivel ring and slide into the limiting groove to release the rotation limit between the mounting frame and the swivel ring.

[0010] Furthermore, adjacent swivel rings are fixedly connected by a synchronizing rod.

[0011] Furthermore, the controller is arranged at the upper end of the stirring shaft and is rotationally matched with the stirring shaft; the controller is fixedly connected to the swivel ring by a vertical connecting rod; the controller is electrically connected to the electromagnet by a wire.

[0012] Furthermore, each mounting bracket is provided with three blades; the three blades are distributed vertically; the upper blade among the three blades is fixedly connected to the mounting bracket; the lower end of the middle blade is rotatably mounted on the mounting bracket, and a torsion spring is connected between the middle blade and the mounting bracket; the upper end of the middle blade abuts against the upper blade; the middle blade and the upper blade form a V shape with the opening facing the rotation direction of the stirring shaft; the lower end of the lower blade is rotatably mounted on the mounting bracket, and a torsion spring is connected between the lower blade and the mounting bracket; the upper end of the lower blade abuts against the middle blade; the middle blade and the lower blade form a V shape with the opening facing the rotation direction of the stirring shaft; rollers are rotatably mounted on the upper ends of both the middle blade and the lower blade. The inclined blades can stir and guide the granular material upward, improving the uniformity of material stirring; at the same time, when the material passes through the gap between adjacent blades, small granular materials directly pass through the gap, while the caked materials overcome the elastic force of the torsion spring at the rotating position of the blade, causing the lower blade and the middle blade to rotate around their respective axes. Under the rolling action of the rollers, the caked materials are dispersed. Since the blades stir and guide the material upward when the stirring shaft rotates, when the stirring shaft stops rotating, the material has the inertia of upward flow. Therefore, when the stirring shaft stops rotating, the blades have a tendency to guide the material downward, increasing the resistance to material flow, enabling the material to quickly consume its inertial energy and stop rotating, thereby reducing the wear on the stirring shaft.

[0013] Furthermore, the one-way assembly includes mounting rings; two mounting rings are arranged vertically; the two mounting rings are arranged on the upper and lower sides of the swivel ring; the mounting rings are coaxially sleeved on the stirring shaft and are fixedly connected to the stirring shaft; the mounting rings are rotationally matched with the swivel ring; an annular mounting cavity is formed by the swivel ring, the stirring shaft, and the two mounting rings; a ratchet ring is arranged in the mounting cavity; the ratchet ring is coaxial with the swivel ring; the outer side wall of the ratchet ring is fixedly connected to the inner side wall of the swivel ring; a pawl is arranged between the ratchet ring and the stirring shaft; the pawl is hinged on the mounting ring; a torsion spring is connected between the pawl and the mounting ring; the pawl and the ratchet ring are in one-way meshing transmission.

[0014] Furthermore, a motor is fixed to the upper end of the mixing cylinder; the output shaft of the motor is fixedly connected to the stirring shaft; a feed inlet is provided at the upper end of the mixing cylinder, and a discharge outlet is provided at the lower end.

[0015] The beneficial effects of the present invention are:

[0016] 1. When the stirring shaft rotates, the one-way component causes the rotating ring to drive the stirring blade assembly and the stirring shaft to rotate synchronously. When the stirring shaft stops rotating and the material rotates the rotating ring through the stirring blade assembly under the action of inertia, the one-way component allows the rotating ring to rotate relative to the stirring shaft, thereby buffering the impact force acting on the circumferential direction of the stirring shaft due to inertia when the stirring shaft stops rotating, and avoiding damage to the stirring shaft caused by the impact.

[0017] 2. When the stirring shaft rotates for stirring, the limiting component is used to limit the rotation between the mounting frame and the rotating ring, and when the stirring shaft stops rotating, the rotation limit between the mounting frame and the rotating ring is released, so that when the stirring shaft stops rotating and when the mounting frame and the blades are impacted by the inclination of the material, the mounting frame rotates around the horizontal axis to buffer the impact in the inclined direction of the material and avoid the stirring shaft being impacted.

[0018] 3. The blades in an inclined state can play a role in upward stirring and guiding of the granular material, improving the uniformity of material stirring; at the same time, when the material passes through the gap between adjacent blades, the small granular material directly passes through the gap, and the agglomerated material overcomes the elastic force of the torsion spring at the rotating position of the blade, so that the lower blade and the middle blade rotate around their respective rotating shafts, and under the rolling action of the roller, the agglomerated material is dispersed.

[0019] 4. Since when the stirring shaft rotates for stirring, the blades stir and guide the material upward, when the stirring shaft stops rotating, the material has the inertia of upward flow. Therefore, when the stirring shaft stops rotating, the blades have a tendency to guide the material downward, increasing the resistance of the material flow, so that the material can quickly consume its inertial energy and stop rotating, thereby reducing the wear of the stirring shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0021] Figure 1 It is a schematic structural diagram of an embodiment of a granular material mixing and stirring device of the present invention;

[0022] Figure 2 It is a schematic diagram of the stirring shaft and the stirring device of an embodiment of a granular material mixing and stirring device of the present invention;

[0023] Figure 3 is Figure 2 an enlarged view of part A in

[0024] Figure 4Schematic diagram of the stirring shaft of an embodiment of a granular material mixing and stirring device of the present invention;

[0025] Figure 5 is Figure 4 Enlarged view of part B in;

[0026] Figure 6 Front view of the stirring shaft of an embodiment of a granular material mixing and stirring device of the present invention;

[0027] Figure 7 is Figure 6 Cross-sectional view taken along line C-C in;

[0028] Figure 8 is Figure 7 Enlarged view of part E in;

[0029] Figure 9 is Figure 6 Cross-sectional view taken along line D-D in;

[0030] Figure 10 is Figure 9 Enlarged view of part F in;

[0031] Figure 11 Schematic diagram of the swivel ring, hinge assembly, and limit assembly of an embodiment of a granular material mixing and stirring device of the present invention;

[0032] Figure 12 is Figure 11 Enlarged view of part G in;

[0033] Figure 13 Schematic diagram of the blades and mounting brackets of an embodiment of a granular material mixing and stirring device of the present invention;

[0034] Figure 14 Exploded view of the blades and mounting brackets of an embodiment of a granular material mixing and stirring device of the present invention.

[0035] In the figure: 100, mixing drum; 110, motor; 200, stirring shaft; 310, swivel ring; 311, synchronizing rod; 320, mounting bracket; 330, blade; 331, roller; 341, mounting ring; 342, mounting cavity; 343, ratchet ring; 344, pawl; 351, hinge seat; 352, ear plate; 353, connecting plate; 354, hinge shaft; 361, top block; 362, mating plate; 363, intermediate plate; 364, limiting groove; 365, limiting plate; 366, permanent magnet block; 367, electromagnet; 368, controller. Detailed implementation manners

[0036] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] An embodiment of a granular material mixing and stirring device of the present invention is as Figures 1 to 14 shown: A granular material mixing and stirring device includes a stirring cylinder 100 and a stirring device; the stirring cylinder 100 is arranged vertically along its axis; a stirring shaft 200 is coaxially arranged inside the stirring cylinder 100; the stirring shaft 200 is rotationally matched with the stirring cylinder 100; a motor 110 is fixed at the upper end of the stirring cylinder 100; the output shaft of the motor 110 is fixedly connected to the stirring shaft 200; a feed inlet is arranged at the upper end of the stirring cylinder 100, and a discharge outlet is arranged at the lower end.

[0038] There are multiple stirring devices distributed vertically along the axis of the stirring shaft 200; the stirring device includes a rotating ring 310 and a one-way component; the rotating ring 310 is coaxially sleeved on the stirring shaft 200 and is rotatably installed on the stirring shaft 200; a plurality of stirring blade assemblies are annularly distributed on the side wall of the rotating ring 310. The stirring blade assembly includes a mounting frame 320 and a limiting component; there are a plurality of mounting frames 320, which are distributed circumferentially along the rotating ring 310; the mounting frame 320 is provided with blades 330 that are inclined up and down; each mounting frame 320 is provided with three blades 330; the three blades 330 are distributed vertically; the upper blade 330 among the three blades 330 is fixedly connected to the mounting frame 320; the lower end of the middle blade 330 is rotatably installed on the mounting frame 320, and a torsion spring is connected between the middle blade 330 and the mounting frame 320; the upper end of the middle blade 330 abuts against the upper blade 330; the middle blade 330 and the upper blade 330 form a V shape with the opening facing the rotation direction of the stirring shaft 200; the lower end of the lower blade 330 is rotatably installed on the mounting frame 320, and a torsion spring is connected between the lower blade 330 and the mounting frame 320; the upper end of the lower blade 330 abuts against the middle blade 330; the middle blade 330 and the lower blade 330 form a V shape with the opening facing the rotation direction of the stirring shaft 200; grinding rollers 331 are rotatably installed at the upper ends of the middle blade 330 and the lower blade 330. The inclined blades 330 can play a role in upward stirring and guiding of the granular material, improving the uniformity of material stirring; at the same time, when the material passes through the gap between adjacent blades 330, the small granular material directly passes through the gap, and the agglomerated material overcomes the elastic force of the torsion spring at the rotating position of the blade 330, so that the lower blade 330 and the middle blade 330 rotate around their respective rotating shafts, and under the rolling action of the grinding roller 331, the agglomerated material is dispersed. Since when the stirring shaft 200 rotates for stirring, the blade 330 stirs and guides the material upward, when the stirring shaft 200 stops rotating, the material has the inertia of upward flow. Therefore, when the stirring shaft 200 stops rotating, the blade 330 has a tendency to guide the material downward, increasing the resistance of the material flow, so that the material can quickly consume its inertial energy and stop rotating, thereby reducing the wear of the stirring shaft 200.

[0039] The mounting frame 320 is rotatably installed on the side wall of the rotating ring 310 by means of a hinged component around a horizontal axis; when the stirring shaft 200 rotates for stirring, the limiting component is used to limit the rotation between the mounting frame 320 and the rotating ring 310, and when the stirring shaft 200 stops rotating, the rotation limit between the mounting frame 320 and the rotating ring 310 is released, so that when the stirring shaft 200 stops rotating and when the mounting frame 320 and the blade 330 are impacted by the inclination of the material, the mounting frame 320 rotates around the horizontal axis to buffer the impact in the inclined direction of the material and prevent the stirring shaft 200 from being impacted.

[0040] The hinge assembly includes a hinge base 351 and a connecting plate 353. The hinge base 351 is fixed on the outer side wall of the swivel 310. There are two ear plates 352 on the hinge base 351. The two ear plates 352 are radially symmetric about the swivel 310. The ear plates 352 are fixed at the end of the hinge base 351 away from the swivel 310. The connecting plate 353 is fixed at the end of the mounting bracket 320 close to the swivel 310 and is located between the two ear plates 352. A hinge shaft 354 is fixed at the end of the connecting plate 353 close to the swivel 310. The axis of the hinge shaft 354 is horizontally arranged and tangentially arranged along the swivel 310. The hinge shaft 354 is rotatably installed on the ear plates 352. A torsion spring is connected between the hinge shaft 354 and the ear plates 352.

[0041] The limiting assembly includes a top block 361, a mating plate 362, an intermediate plate 363 and an auxiliary structure. There are two top blocks 361, which are symmetrically distributed above and below on both sides of the hinge shaft 354 and are located on the side of the hinge shaft 354 away from the swivel 310. The top blocks 361 are fixed at the upper and lower ends of the connecting plate 353. There are two mating plates 362, which are symmetrically distributed above and below on both sides of the hinge shaft 354 and are located on the side of the hinge shaft 354 close to the swivel 310. The mating plates 362 are arranged between the two ear plates 352. The mating plates 362 are fixedly connected to the upper and lower ends of the ear plates 352 and are also fixedly connected to the hinge base 351. The intermediate plate 363 is arranged between the hinge shaft 354 and the hinge base 351 and is located between the two mating plates 362. The end of the intermediate plate 363 close to the hinge base 351 is fixedly connected to the hinge base 351. A limiting groove 364 is formed between the mating plate 362 and the intermediate plate 363. A limiting plate 365 is slidably installed in the limiting groove 364. The auxiliary structure is arranged between the swivel 310 and the hinge base 351. When the stirring shaft 200 rotates, the auxiliary structure makes the end of the limiting plate 365 away from the swivel 310 abut against the top block 361, and the end close to the swivel 310 is inserted into the limiting groove 364 to limit the rotation of the mounting bracket 320. When the rotation of the stirring shaft 200 stops, the limiting plate 365 is driven to move towards the swivel 310 and slide into the limiting groove 364 to release the rotational restriction between the mounting bracket 320 and the swivel 310.

[0042] The auxiliary structure includes a permanent magnet block 366, an electromagnet 367, and a controller 368; the permanent magnet block 366 is fixed to one end of the limiting plate 365 close to the rotating ring 310; the electromagnet 367 is fixed in the limiting groove 364 and is at one end of the limiting groove 364 close to the rotating ring 310; the controller 368 is arranged at the upper end of the stirring shaft 200 and is rotationally matched with the stirring shaft 200; the controller 368 is fixedly connected to the rotating ring 310 through a vertical connecting rod; the controller 368 is electrically connected to the electromagnet 367 through a wire. Adjacent rotating rings 310 are fixedly connected through a synchronizing rod 311. When the stirring shaft 200 rotates, the controller 368 makes the magnetic properties of the electromagnet 367 and the permanent magnet block 366 the same, and there is a repulsive force between the permanent magnet block 366 and the electromagnet 367, causing the limiting plate 365 to move away from the rotating ring 310, and the end of the limiting plate 365 moving away from the rotating ring 310 abuts against the top block 361. When the stirring shaft 200 stops rotating, the controller 368 changes the current direction of the electromagnet 367, making the magnetic properties of the electromagnet 367 and the permanent magnet block 366 opposite, and there is an attractive force between the permanent magnet block 366 and the electromagnet 367, causing the limiting plate 365 to approach the rotating ring 310, and the end of the limiting plate 365 approaching the rotating ring 310 abuts against the electromagnet 367, causing the limiting plate 365 to move towards the rotating ring 310 and slide into the limiting groove 364, releasing the rotational restriction between the mounting bracket 320 and the rotating ring 310.

[0043] The one-way component is arranged between the rotating ring 310 and the stirring shaft 200; when the stirring shaft 200 rotates, the one-way component makes the rotating ring 310 drive the stirring blade assembly and the stirring shaft 200 to rotate synchronously. When the stirring shaft 200 stops rotating and the material rotates the rotating ring 310 through the stirring blade assembly under the action of inertia, the one-way component allows the rotating ring 310 to rotate relative to the stirring shaft 200, thereby buffering the impact force acting on the circumferential direction of the stirring shaft 200 due to inertia when the stirring shaft 200 stops rotating and preventing the stirring shaft 200 from being damaged by the impact. The one-way component includes a mounting ring 341; two mounting rings 341 are arranged in the upper and lower distributions; the two mounting rings 341 are arranged on the upper and lower sides of the rotating ring 310; the mounting ring 341 is coaxially sleeved on the stirring shaft 200 and is fixedly connected to the stirring shaft 200; the mounting ring 341 is rotationally matched with the rotating ring 310; the rotating ring 310, the stirring shaft 200, and the two mounting rings 341 enclose an annular mounting cavity 342; a ratchet ring 343 is arranged in the mounting cavity 342; the ratchet ring 343 is coaxial with the rotating ring 310; the outer side wall of the ratchet ring 343 is fixedly connected to the inner side wall of the rotating ring 310; a pawl 344 is arranged between the ratchet ring 343 and the stirring shaft 200; the pawl 344 is hinged on the mounting ring 341; a torsion spring is connected between the pawl 344 and the mounting ring 341; the pawl 344 and the ratchet ring 343 are in one-way meshing transmission.

[0044] Combined with the above embodiments, the working principle and process of the present invention are as follows: During use, the motor 110 drives the stirring shaft 200 to rotate. The ratchet ring 343 and the pawl 344 of the one-way component cause the rotating ring 310 to drive the stirring blade assembly and the stirring shaft 200 to rotate synchronously. The controller 368 makes the magnetic properties of the permanent magnet block 366 and the electromagnet 367 the same. There is a repulsive force between the permanent magnet block 366 and the electromagnet 367, causing the limiting plate 365 to move away from the rotating ring 310, and the end of the limiting plate 365 away from the rotating ring 310 abuts against the top block 361, and the end close to the rotating ring 310 is inserted into the limiting groove 364 to limit the rotation of the mounting bracket 320. Through the pushing and guiding of the material by the blades 330, the stirring and mixing of granular materials are realized.

[0045] When the stirring shaft 200 stops rotating and the material rotates the rotating ring 310 through the blades 330 of the stirring blade assembly under the action of inertia, the ratchet ring 343 and the pawl 344 cause the rotating ring 310 to rotate relative to the stirring shaft 200. Thus, when the stirring shaft 200 stops rotating, the impact force of the material acting on the circumferential direction of the stirring shaft 200 due to inertia is buffered, and the stirring shaft 200 is prevented from being damaged by the impact.

[0046] At the same time, the controller 368 changes the current direction of the electromagnet 367 to make the magnetic properties of the permanent magnet block 366 and the electromagnet 367 opposite. There is an attractive force between the permanent magnet block 366 and the electromagnet 367, causing the limiting plate 365 to approach the rotating ring 310, and the end of the limiting plate 365 close to the rotating ring 310 abuts against the electromagnet 367, causing the limiting plate 365 to move towards the rotating ring 310 and slide into the limiting groove 364, releasing the rotation restriction between the mounting bracket 320 and the rotating ring 310. When the stirring shaft 200 stops rotating and when the mounting bracket 320 and the blades 330 are impacted by the inclined material, the mounting bracket 320 rotates around the horizontal axis to buffer the impact in the inclined direction of the material and prevent the stirring shaft 200 from being impacted.

[0047] In addition, the inclined blades 330 can play a role in stirring and guiding the granular material upward, improving the uniformity of material stirring. At the same time, when the material passes through the gap between adjacent blades 330, the small granular material directly passes through the gap, and the caked material overcomes the elastic force of the torsion spring at the rotating position of the blade 330, causing the lower blade 330 and the middle blade 330 to rotate around their respective rotating shafts. Under the rolling action of the roller 331, the caked material is dispersed. Since the blades 330 stir and guide the material upward when the stirring shaft 200 rotates for stirring, when the stirring shaft 200 stops rotating, the material has the inertia of upward flow. Thus, when the stirring shaft 200 stops rotating, the blades 330 have a tendency to guide the material downward, increasing the resistance of the material flow, enabling the material to quickly consume its inertial energy and stop rotating, thereby reducing the wear of the stirring shaft 200.

[0048] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A granular material mixing and stirring device, characterized in that: It includes a mixing drum and a mixing device; The mixing drum is arranged vertically; a mixing shaft is coaxially arranged inside the mixing drum; the mixing shaft and the mixing drum are rotationally matched; A plurality of mixing devices are distributed vertically along the axis of the mixing shaft; the mixing device includes a rotating ring and a one-way component; The rotating ring is coaxially sleeved on the mixing shaft and is rotatably installed on the mixing shaft; a plurality of mixing blade assemblies are annularly distributed on the side wall of the rotating ring; the mixing blade assembly includes a mounting frame and a limiting component; there are a plurality of mounting frames distributed circumferentially along the rotating ring; blades are arranged on the mounting frame in an inclined manner from top to bottom; the mounting frame is rotatably installed on the side wall of the rotating ring through a hinged component around a horizontal axis; when the mixing shaft rotates for mixing, the limiting component is used to limit the rotation between the mounting frame and the rotating ring, and when the mixing shaft stops rotating, the rotation limit between the mounting frame and the rotating ring is released; The one-way component is arranged between the rotating ring and the mixing shaft; when the mixing shaft rotates, the one-way component enables the rotating ring to drive the mixing blade assembly and the mixing shaft to rotate synchronously, and when the mixing shaft stops rotating and the material rotates the rotating ring through the mixing blade assembly under the action of inertia, the one-way component allows the rotating ring to rotate relative to the mixing shaft.

2. The particle material mixing and stirring device according to claim 1, characterized in that: The hinged component includes a hinge seat and a connecting plate; The hinge seat is fixed on the outer side wall of the rotating ring; two ear plates are arranged on the hinge seat; the two ear plates are radially symmetric about the rotating ring; the ear plates are fixed at the end of the hinge seat away from the rotating ring; The connecting plate is fixed at the end of the mounting frame close to the rotating ring and is located between the two ear plates; a hinge shaft is fixed at the end of the connecting plate close to the rotating ring; the axis of the hinge shaft is horizontally arranged and is arranged tangentially along the rotating ring; the hinge shaft is rotatably installed on the ear plates; a torsion spring is connected between the hinge shaft and the ear plates.

3. A granular material mixing and stirring device according to claim 2, characterized in that: The limiting component includes a top block, a mating plate, an intermediate plate, and an auxiliary structure; There are two top blocks, which are symmetrically distributed above and below on both sides of the hinge shaft and are located on the side of the hinge shaft away from the rotating ring; the top blocks are fixed at the upper and lower ends of the connecting plate; There are two mating plates, which are symmetrically distributed above and below on both sides of the hinge shaft and are located on the side of the hinge shaft close to the rotating ring; the mating plates are arranged between the two ear plates; the mating plates are fixedly connected to the upper and lower ends of the ear plates and are fixedly connected to the hinge seat; The intermediate plate is arranged between the hinge shaft and the hinge seat and is located between the two mating plates; the end of the intermediate plate close to the hinge seat is fixedly connected to the hinge seat; a limiting groove is formed between the mating plate and the intermediate plate; a limiting plate is slidably installed in the limiting groove; The auxiliary structure is arranged between the rotating ring and the hinge seat; when the mixing shaft rotates, the auxiliary structure makes the end of the limiting plate away from the rotating ring abut against the top block, and the end close to the rotating ring is inserted into the limiting groove, and when the mixing shaft stops rotating, it drives the limiting plate to move towards the rotating ring and slide into the limiting groove.

4. A granular material mixing and stirring device according to claim 3, characterized in that: The auxiliary structure includes a permanent magnet, an electromagnet, and a controller; the permanent magnet is fixed at the end of the limiting plate close to the rotating ring; the electromagnet is fixed in the limiting groove and is located at the end of the limiting groove close to the rotating ring; when the mixing shaft rotates, the controller makes the electromagnet and the permanent magnet have the same magnetic property, and when the mixing shaft stops rotating, the controller makes the electromagnet and the permanent magnet have opposite magnetic properties.

5. A granular material mixing and stirring device according to claim 4, characterized in that: Adjacent rotating rings are fixedly connected by a synchronizing rod.

6. A granular material mixing and stirring device according to claim 5, characterized in that: The controller is arranged at the upper end of the mixing shaft and is rotationally matched with the mixing shaft; the controller is fixedly connected to the rotating ring through a vertical connecting rod; the controller is electrically connected to the electromagnet through a wire.

7. A granular material mixing and stirring device according to claim 1, characterized in that: There are three blades on each mounting bracket; the three blades are distributed vertically; the upper blade among the three blades is fixedly connected to the mounting bracket; the lower end of the middle blade is rotatably mounted on the mounting bracket, and a torsion spring is connected between the middle blade and the mounting bracket; the upper end of the middle blade abuts against the upper blade; the middle blade and the upper blade form a V shape with the opening facing the rotation direction of the stirring shaft; the lower end of the lower blade is rotatably mounted on the mounting bracket, and a torsion spring is connected between the lower blade and the mounting bracket; the upper end of the lower blade abuts against the middle blade; the middle blade and the lower blade form a V shape with the opening facing the rotation direction of the stirring shaft; Rolling rollers are rotatably mounted at the upper ends of the middle blade and the lower blade.

8. A granular material mixing and stirring device according to any one of claims 1-7, characterized in that: The one-way assembly includes mounting rings; there are two mounting rings distributed vertically; the two mounting rings are arranged on the upper and lower sides of the rotating ring; the mounting rings are coaxially sleeved on the stirring shaft and fixedly connected to the stirring shaft; the mounting rings are rotationally matched with the rotating ring; the rotating ring, the stirring shaft and the two mounting rings enclose an annular mounting cavity; a ratchet ring is arranged in the mounting cavity; the ratchet ring is coaxial with the rotating ring; the outer side wall of the ratchet ring is fixedly connected to the inner side wall of the rotating ring; a pawl is arranged between the ratchet ring and the stirring shaft; the pawl is hinged on the mounting ring; a torsion spring is connected between the pawl and the mounting ring; the pawl and the ratchet ring are in one-way meshing transmission.

9. A particle material mixing and stirring device according to claim 1, characterized in that: A motor is fixed at the upper end of the mixing drum; the output shaft of the motor is fixedly connected to the stirring shaft; a feed inlet is arranged at the upper end of the mixing drum, and a discharge outlet is arranged at the lower end.

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