Middle supporting assembly for kneading machine

Abstract

The utility model relates to an intermediate support assembly for a kneading machine, which comprises a stationary ring assembly and a moving ring assembly which are matched with each other, the stationary ring assembly comprises a plurality of first ring plates, a plurality of second ring plates and a plurality of third ring plates, and each first ring plate is used for being matched with the inner side wall of a machine barrel of the kneading machine; the second annular plates are in one-to-one correspondence with the first annular plates; a plurality of connecting plate groups, wherein each connecting plate group is used for connecting the single first ring plate and the corresponding second ring plate; the movable ring assembly comprises a plurality of shaft sleeves and a plurality of movable rings, wherein each shaft sleeve is fixed on the outer circumferential surface of a core shaft of the kneading machine; and the shaft sleeves and the second ring plates are in one-to-one correspondence and are rotationally mounted, so that the static ring assemblies support the corresponding mandrels to stably rotate through the movable ring assemblies. By arranging the static ring assembly and the movable ring assembly, the problem of metal generated during operation of the kneading machine can be solved, so that the quality of slurry is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of kneading machines, in particular to an intermediate supporting component for a kneading machine. Background Art

[0002] Kneading machine is widely used to prepare lithium battery slurry, which mainly includes transmission system, feeding system, extrusion system, control system, screw and barrel; the material is added to the barrel by the feeding system, and the screw in the barrel rotates to produce spiral conveying and mixing effects on the material, thereby preparing lithium battery slurry. Kneading machine, the screw usually adopts a building block structure, including a mandrel, a screw element and a screw head. The screw element is assembled and installed on the mandrel and tightened by the screw head.

[0003] In the prior art, the screw is usually supported by a cantilever structure, with the support position at the screw head, which is connected to the output shaft of the gearbox through a coupling, and the main body and tail of the screw are suspended in the barrel. When the aspect ratio of the screw is large, the viscosity of the processed material is low, or there is not enough material in the barrel, the material in the barrel is not enough to float the screw, and the screw will be flexibly deformed under the action of its own gravity and centrifugal force. When the flexural deformation of the screw is greater than the gap between the screw ridge and the inner wall of the barrel, the screw ridge and the inner wall of the barrel will be severely worn, resulting in a lot of metal impurities, thereby contaminating the lithium battery slurry. Utility Model Content

[0004] In view of the shortcomings of the above-mentioned existing production technology, the applicant provides an intermediate support assembly for a kneading machine. By arranging a static ring assembly and a dynamic ring assembly, the problem of metal generated during the operation of the kneading machine can be solved, thereby improving the slurry quality.

[0005] The technical solution adopted by the utility model is as follows:

[0006] An intermediate support assembly for a kneading machine includes a stationary ring assembly and a dynamic ring assembly that cooperate with each other, and the stationary ring assembly includes:

[0007] A plurality of first ring plates, each of which is used to cooperate with the inner side wall of the barrel of the kneading machine;

[0008] A plurality of second ring plates corresponding to the first ring plates one by one;

[0009] An array of connection plate groups, each of which is used to connect a single first ring plate with a corresponding second ring plate;

[0010] The dynamic ring assembly comprises:

[0011] A plurality of sleeves, each sleeve being fixed to the outer circumference of the mandrel of the kneading machine;

[0012] The shaft sleeve corresponds to the second ring plate one by one and is rotatably installed, so that the stationary ring assembly supports the corresponding core shaft to rotate stably through the dynamic ring assembly.

[0013] As a further improvement of the above technical solution:

[0014] A single connecting plate group includes a plurality of connecting plates arranged at intervals along a circumference, and a first flow channel is formed between two adjacent connecting plates and the corresponding first ring plate and second ring plate, wherein the first flow channel is used for allowing the slurry inside the barrel to pass through.

[0015] At least one mounting plate is further arranged between a single first ring plate and the corresponding second ring plate, and a mounting end surface is arranged on the end surface of the mounting plate.

[0016] The mounting plate is provided with a first through hole, and the first through hole is used to allow the slurry inside the barrel to pass through, thereby forming a second flow channel.

[0017] A second through hole is provided on the mounting end surface, and the second through hole is used to allow the slurry inside the barrel to pass through, thereby forming a third flow channel.

[0018] Spray water channels that are interconnected are provided inside a single first ring plate, inside a corresponding second ring plate, and inside a corresponding connection plate group.

[0019] The outer diameter of a single first ring plate is greater than the outer diameter of the corresponding second ring plate.

[0020] The single second ring plate and the shaft sleeve are rotationally matched via a rotation pair or a friction pair.

[0021] A plurality of convex strips are arranged on the outer circumferential surface of a single shaft sleeve, and the convex strips are distributed in a spiral shape.

[0022] When the length-to-diameter ratio L / D of the screw inside the kneading machine is ≤32, a set of intermediate support components is installed inside the barrel; when the length-to-diameter ratio L / D of the screw inside the kneading machine is greater than 2 and less than 64, two sets of intermediate support components are installed inside the barrel.

[0023] The beneficial effects of the utility model are as follows:

[0024] The utility model has a compact and reasonable structure and is easy to operate. By arranging a static ring assembly and a dynamic ring assembly, the static ring of the fixed static ring assembly can reduce the jumping of the dynamic ring assembly during rotation, reduce the winding deformation of the screw, and reduce the friction between the screw element on the core shaft and the inner wall of the barrel, so as to reduce the metal impurities generated during the operation of the kneading machine, thereby improving the quality of lithium battery slurry.

[0025] The utility model also has the following advantages:

[0026] (1) In the present invention, a mounting plate is provided, and a mounting plane is provided on the outer end surface thereof, so that the two stationary rings can be fitted together and fixed to each other in a limited position, thereby preventing the stationary rings from moving.

[0027] (2) In the present invention, by providing a first flow channel formed between the first ring plate, the second ring plate and two adjacent connecting plates, the slurry inside the barrel can be easily flowed along the axial direction of the core shaft, thereby avoiding blockage in the barrel.

[0028] (3) In the present invention, by providing a second flow channel formed on the mounting plane, the internal spaces of the two stationary rings can be connected, thereby facilitating the slurry inside the barrel to flow radially along the core shaft, further preventing the problem of material blockage.

[0029] (4) In the present invention, by providing a third flow channel on the mounting plate, the flow dead zone between the two static rings can be opened up, thereby further improving the fluidity of the slurry.

[0030] (5) In the utility model, by providing the convex strips, the dead zone of the flow field generated in the first flow channel can be broken, thereby improving the fluidity of the slurry; at the same time, the axial displacement of the inner ring in the rotating pair can be limited to prevent the rotating pair from generating axial displacement under the thrust of the screw element during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 The structure of the utility model is shown in FIG. Figure 1 .

[0032] Figure 2 for Figure 1 Top view of the .

[0033] Figure 3 It is a structural schematic diagram of the static ring assembly in the utility model.

[0034] Figure 4 It is a side full-section view of the stationary ring assembly in the utility model.

[0035] Figure 5 It is a structural schematic diagram of the dynamic ring in the utility model.

[0036] Figure 6 for Figure 5 main view.

[0037] Figure 7 This is a second structural diagram of the present utility model.

[0038] Figure 8 It is a schematic diagram of the utility model in working state.

[0039] Among them: 1. barrel; 2. core shaft; 3. screw element; 4. coupling; 5. motor; 6. front support assembly; 7. discharge port; 8. first ring plate; 9. second ring plate; 10. connecting plate; 11. mounting plate; 1101, mounting end face; 12. first flow channel; 13. second flow channel; 14. third flow channel; 15. rotating pair; 16. bushing; 17. convex strip; 18. intermediate support assembly. DETAILED DESCRIPTION

[0040] The specific implementation of the present utility model is described below in conjunction with the accompanying drawings.

[0041] The structure and functions of the utility model are as follows:

[0042] like Figure 1-Figure 8 As shown, an intermediate support assembly for a kneading machine includes a stationary ring assembly and a dynamic ring assembly that cooperate with each other, the stationary ring assembly includes: a plurality of first ring plates 8, each of which is used to cooperate with the inner wall of the barrel 1 of the kneading machine; a plurality of second ring plates 9, which correspond to the first ring plates 8 one by one; a plurality of connecting plate groups, each of which is used to connect a single first ring plate 8 with a corresponding second ring plate 9; the dynamic ring assembly includes: a plurality of shaft sleeves 16, each of which is fixed on the outer circumferential surface of the core shaft 2 of the kneading machine; the shaft sleeves 16 correspond to the second ring plates 9 one by one and are rotatably installed, so that the stationary ring assembly supports the corresponding core shaft 2 to rotate stably through the dynamic ring assembly. The intermediate support assembly of the utility model includes a stationary ring assembly and a dynamic ring assembly, wherein the stationary ring assembly is used to cooperate with the inner side wall of the barrel 1 of the kneading machine, and the dynamic ring assembly is used to cooperate with the outer circumferential surface of the core shaft 2 of the kneading machine, so that the stationary ring assembly supports the core shaft 2 to rotate stably through the dynamic ring assembly; by setting the intermediate support assembly 18, the friction between the screw and the inner wall of the barrel 1 can be reduced during operation, thereby reducing the generation of metal impurities.

[0043] In the utility model, the kneading machine comprises a hollow barrel 1, one end of which is equipped with a transmission device, and the other end of which is provided with a discharge port 7;

[0044] At least two screws are installed in the barrel 1. A single screw includes a core shaft 2. One end of the core shaft 2 extends out of the barrel 1 and is connected to an output end of a transmission device through a coupling 4. An array of screw elements 3 is installed on the outer circumference of the core shaft 2.

[0045] One end of the core shaft 2 is also equipped with a front support assembly 6, which is arranged outside the barrel 1;

[0046] The input end of the transmission device is connected to the output end of the motor 5 , and the motor 5 drives the core shaft 2 to rotate, thereby driving the screw element 3 to rotate, and then stirring the slurry inside the barrel 1 .

[0047] In addition, in the present invention, at least one set of intermediate support components 18 is arranged inside the barrel 1; Figure 1 As shown, two screws can be arranged inside the kneading machine. In this case, a mounting plate 11 is arranged on each stationary ring; Figure 7 As shown, three screws can be arranged inside the kneading machine. In this case, two mounting plates 11 are symmetrically arranged on the stationary ring installed on the middle screw, and one mounting plate 11 is arranged on each of the two stationary rings installed on the two side screws. Similarly, more than three screws can be arranged inside the kneading machine. In this case, one mounting plate 11 is arranged on each of the stationary rings installed on the two outermost screws, and two mounting plates 11 are arranged on each of the other stationary rings, so as to achieve coordinated installation between the stationary rings.

[0048] Since the change in the arrangement position of the intermediate support assembly 18 will cause the change in the screw support formation; in order to obtain a good support effect, when the length-to-diameter ratio L / D of the screw inside the kneading machine is ≤32, a group of intermediate support assemblies are installed inside the barrel 1; when the length-to-diameter ratio L / D of the screw inside the kneading machine is greater than 2 and less than 64, two groups of intermediate support assemblies are installed inside the barrel 1.

[0049] The stationary ring assembly includes at least two stationary rings, and a single stationary ring includes a first ring plate 8, a second ring plate 9, a connecting plate group, and a mounting plate 11;

[0050] For a single stationary ring, the first ring plate 8 and the second ring plate 9 are both in annular shape and are arranged at intervals;

[0051] The first ring plate 8 is used to cooperate with the inner wall surface of the barrel 1 of the kneading machine to ensure the positioning of the stationary ring;

[0052] The second ring plate 9 is rotatably matched with the corresponding moving ring, so that the moving ring can rotate relative to the stationary ring; the single second ring plate 9 and the sleeve 16 are rotatably matched through the rotating pair 15 or the friction pair; when the rotating pair 15 is used, the inner wall surface of the second ring plate 9 is provided with a groove for installing the rotating pair 15, and the rotating pair 15 can adopt a rolling bearing. By setting the rotating pair 15, the beating of the screw during rotation can be effectively reduced; the outer ring of the rolling bearing is matched with the inner wall surface of the groove, and the inner ring is matched with the sleeve 16, so as to realize the rotatable installation of the moving ring and the stationary ring;

[0053] A single connecting plate group includes several connecting plates 10 arranged at intervals along the circumference, and a first flow channel 12 is formed between two adjacent connecting plates 10 and the corresponding first ring plate 8 and second ring plate 9. The first flow channel 12 is used to allow the slurry inside the barrel 1 to pass through; the connecting plates 10 are used to ensure the improvement of the structural strength of the static ring, and at the same time, can also form disturbances to the slurry inside the barrel 1.

[0054] At least one mounting plate 11 is further arranged between a single first ring plate 8 and the corresponding second ring plate 9, and a mounting end surface 1101 is arranged on the end surface of the mounting plate 11; the mounting plate 11 is used to realize the matching installation between the two stationary rings, and a mounting plane 1101 is arranged on its outer end surface, so as to facilitate the fitting between the two adjacent stationary rings and limit and fix them to each other, so as to prevent the stationary rings from moving.

[0055] A first through hole is provided on the mounting plate 11 for allowing the slurry inside the barrel 1 to pass through, thereby forming a second flow channel 13 ; a second through hole is provided on the mounting end surface 1101 for allowing the slurry inside the barrel 1 to pass through, thereby forming a third flow channel 14 .

[0056] In the present invention, by providing the first flow channel 12, which is formed between the first ring plate 8, the second ring plate 9 and the two adjacent connecting plates 10, the slurry inside the barrel 1 can be easily flowed along the axial direction of the core shaft 2, thereby avoiding blockage in the barrel 1;

[0057] By providing the second flow channel 13, which is formed on the mounting plane 1101, the internal spaces of the two stationary rings can be connected, so that the slurry inside the barrel 1 can flow radially along the core shaft 2, further preventing the problem of material blockage;

[0058] By providing the third flow channel 14 formed on the mounting plate 11 , the flow dead zone between the two stationary rings can be opened up, thereby further improving the fluidity of the slurry.

[0059] In the utility model, by providing the intermediate support assembly 18, the flexural deformation of the screw can be reduced, and the friction between the screw element 3 on the core shaft 2 and the inner wall of the barrel 1 can be reduced, so as to reduce the metal impurities generated during the operation of the kneading machine, thereby improving the quality of the lithium battery slurry.

[0060] In addition, when the slurry is transported by the screw in the barrel 1, it will be blocked by the intermediate support assembly 18, which may easily cause slurry blockage and thus cause the screw to stop rotating. In the utility model, by arranging the first flow channel 12, the second flow channel 13, and the third flow channel 14 on the intermediate support assembly 18, the fluidity of the slurry can be effectively improved, blockage can be prevented, and the working stability of the kneading machine can be improved.

[0061] The outer diameter of a single first ring plate 8 is larger than the outer diameter of the corresponding second ring plate 9, which can make a single stationary ring truncated cone-shaped. In the utility model, the height H0 of the stationary ring is within the range of 0.5 times to 1.0 times the outer diameter D0 of the first ring plate 8, which can reduce the resistance of the intermediate support assembly 18 to the slurry, improve the fluidity of the slurry, and further reduce the risk of blockage.

[0062] The interior of a single first ring plate 8, the interior of the corresponding second ring plate 9, and the interior of the corresponding connection plate group are all provided with interconnected spray water channels, that is, a spray water channel is provided inside a single static ring; the liquid outlet of the spray water channel corresponds to the rotating pair 15, and the rotating pair 15 is cooled and lubricated by passing the solution into the spray water channel. The liquid outlet of the spray water channel is arranged on the second ring plate 9 and corresponds to the installation position of the rotating pair 15, so that the solution can cool and lubricate the rotating pair 15.

[0063] The dynamic ring assembly includes several dynamic rings, each of which corresponds to each static ring and is rotatably installed inside the corresponding static ring; a single dynamic ring includes a sleeve 16 and a convex strip 17 arranged on the sleeve 16, and a single sleeve 16 is fixedly connected to the corresponding core shaft 2 through a spline.

[0064] The sleeve 16 is cylindrical and hollow inside, with splines arranged on its inner wall surface, which can cooperate with the core shaft 2 to transmit torque and power; the outer wall surface of the sleeve 16 is provided with convex strips 17, which can generate radial and axial conveying forces on the slurry, so as to push the slurry to move axially and left and right, breaking the flow dead zone in the first flow channel 12 of the static ring, thereby increasing the fluidity of the slurry and preventing the slurry from being blocked.

[0065] The outer circumferential surface of a single sleeve 16 is provided with several convex strips 17, which are distributed in a spiral shape. The spiral convex strips 17 form a thread lead angle of 30°-45°. Within this angle range, the dynamic ring has the best effect of conveying slurry and can improve the fluidity of the slurry.

[0066] In addition, a limiting ring plate is provided on the outer wall surface of the shaft sleeve 16 for limiting the rotation pair 15 .

[0067] The working process of the utility model is as follows:

[0068] The powder and liquid enter the barrel 1 through the feeding system; at the same time, the motor 5 starts and drives the two screws to rotate through the transmission device;

[0069] When the two screws rotate, the powder and liquid in the barrel 1 are stirred by the screw element 3 and transported to the discharge port 7, and discharged through the discharge port 7;

[0070] The intermediate support assembly 18 can prevent the screw from being flexibly deformed; the first flow channel 12, the second flow channel 13, and the third flow channel 14 can improve the fluidity of the slurry inside the barrel 1 and prevent blockage.

[0071] The above description is an explanation of the utility model, not a limitation of the utility model. The scope of the utility model is defined by the claims. Any form of modification can be made within the protection scope of the utility model.

Claims

1. An intermediate support assembly for a kneading machine, characterized in that: It includes a stationary ring assembly and a dynamic ring assembly that cooperate with each other, and the stationary ring assembly includes: A plurality of first ring plates (8), each of which is used to cooperate with the inner side wall of a barrel (1) of the kneading machine; A plurality of second ring plates (9), corresponding one to one with the first ring plates (8); An array of connection plate groups, each connection plate group being used to connect a single first ring plate (8) and a corresponding second ring plate (9); The dynamic ring assembly comprises: A plurality of shaft sleeves (16), each shaft sleeve (16) being fixed on the outer circumferential surface of the core shaft (2) of the kneading machine; The shaft sleeve (16) corresponds to the second ring plate (9) one by one and is rotatably installed, so that the stationary ring assembly supports the corresponding core shaft (2) to rotate stably through the dynamic ring assembly.

2. An intermediate support assembly for a kneading machine according to claim 1, characterized in that: A single connecting plate group comprises a plurality of connecting plates (10) arranged at intervals along a circumference, wherein a first flow channel (12) is formed between two adjacent connecting plates (10) and the corresponding first ring plate (8) and second ring plate (9), and the first flow channel (12) is used to allow slurry inside the barrel (1) to pass through.

3. An intermediate support assembly for a kneading machine according to claim 1, characterized in that: At least one mounting plate (11) is further arranged between a single first ring plate (8) and a corresponding second ring plate (9), and a mounting end surface (1101) is arranged on the end surface of the mounting plate (11).

4. An intermediate support assembly for a kneading machine as claimed in claim 3, characterized in that: The mounting plate (11) is provided with a first through hole, and the first through hole is used to allow the slurry inside the barrel (1) to pass through, thereby forming a second flow channel (13).

5. An intermediate support assembly for a kneading machine as claimed in claim 3, characterized in that: A second through hole is provided on the mounting end surface (1101), and the second through hole is used to allow the slurry inside the barrel (1) to pass through, thereby forming a third flow channel (14).

6. An intermediate support assembly for a kneading machine according to claim 1, characterized in that: Spray water channels that are interconnected are provided inside a single first ring plate (8), inside a corresponding second ring plate (9), and inside a corresponding connection plate group.

7. An intermediate support assembly for a kneading machine according to claim 1, characterized in that: The outer diameter of a single first ring plate (8) is greater than the outer diameter of the corresponding second ring plate (9).

8. An intermediate support assembly for a kneading machine according to claim 1, characterized in that: The single second ring plate (9) and the shaft sleeve (16) are rotated together via a rotating pair (5) or a friction pair.

9. An intermediate support assembly for a kneading machine according to claim 1, characterized in that: A plurality of convex strips (17) are arranged on the outer circumferential surface of a single shaft sleeve (16), and the convex strips (17) are distributed in a spiral shape.

10. The intermediate support assembly for a kneading machine according to claim 1, characterized in that: When the length-to-diameter ratio L / D of the screw inside the kneading machine is ≤32, a set of intermediate support components is installed inside the barrel (1); when the length-to-diameter ratio L / D of the screw inside the kneading machine is greater than 2 and less than 64, two sets of intermediate support components are installed inside the barrel (1).

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