Graphite wheel mechanism

Abstract

The utility model relates to the technical field of glass production, in particular to a graphite wheel mechanism, and aims to solve the technical problem that a glass tube is scratched due to the fact that the graphite wheel mechanism slides relative to the glass tube due to resistance in the prior art. The graphite wheel mechanism comprises a rotating shaft, a graphite wheel and a magnetic supporting assembly. The magnetic support assembly includes a first magnet unit and a second magnet unit. The graphite wheel is rotationally connected to the rotating shaft. The first magnet unit comprises a plurality of first permanent magnets which are embedded into the graphite wheel and evenly distributed around the axis of the graphite wheel. The second magnet unit comprises a second permanent magnet embedded in the rotating shaft. According to the graphite wheel mechanism, the magnetic force between the first magnet unit and the second magnet unit is used as the lifting force for counteracting the load of the glass tube and the graphite wheel to realize suspension, so that the friction force between the graphite wheel and the rotating shaft is reduced, smooth rotation of the graphite wheel is ensured, and scratches on the surface of the glass tube are reduced. The technical problem that an existing graphite wheel mechanism slides relative to a glass tube due to limitation of resistance, and the glass tube is scratched is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of glass production, in particular to a graphite wheel mechanism. Background Art

[0002] In the production process of glass tubes, the support and guidance of high-temperature glass tubes rely on rotatable graphite wheels fixed on a runway. Due to the resistance, if the rotation speed of the graphite wheel is slower than the moving speed of the glass tube, relative sliding will occur between the graphite wheel and the glass tube, resulting in scratches on the surface of the glass tube. Such scratches damage the appearance quality of the glass tube, reduce its physical properties, and may shorten its service life. At the same time, the scratched glass tube increases the risk of fracture or leakage during use, thus increasing the potential danger during use.

[0003] In the production process of glass tubes, the existing graphite wheel mechanism has the technical problem that due to being limited by resistance, relative sliding occurs with the glass tube, resulting in scratching of the glass tube. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a graphite wheel mechanism to solve the technical problem that in the related art, due to being limited by resistance, relative sliding occurs with the glass tube, resulting in scratching of the glass tube.

[0005] To solve the above technical problem, the technical solution provided by the utility model lies in:

[0006] The graphite wheel mechanism provided by the utility model includes:

[0007] A rotating shaft, a graphite wheel and a magnetic support assembly. The magnetic support assembly includes a first magnet unit and a second magnet unit. The rotating shaft is horizontally arranged, and the graphite wheel is rotatably connected to the rotating shaft. The first magnet unit includes a plurality of first permanent magnets embedded in the graphite wheel and evenly distributed around the axis of the graphite wheel, and the magnetic axis of the first permanent magnet intersects with the axis of the graphite wheel. The second magnet unit includes a second permanent magnet embedded in the rotating shaft, and the magnetic axis of the second permanent magnet intersects with the axis of the rotating shaft in the vertical direction. The second magnet unit applies an upward magnetic force to the first magnet unit through the second permanent magnet, thereby providing a lifting force for the graphite wheel.

[0008] Specifically, it further includes bearings and support columns. The two bearings are respectively inserted at both ends of the graphite wheel and sleeved on the rotating shaft, and both ends of the rotating shaft are respectively inserted into the support columns.

[0009] Specifically, the bearings are angular contact ball bearings. The outer rings of the two angular contact ball bearings are inserted into the graphite wheel and respectively abut against both ends of the graphite wheel. The inner rings of the two angular contact ball bearings are sleeved on the rotating shaft and respectively abut against the support columns.

[0010] Specifically, the magnetic support assembly further includes a third magnet unit and a fourth magnet unit, which are exactly the same as the second magnet unit. A plurality of the third magnet units and an equal number of the fourth magnet units are symmetrically arranged on both sides of the second magnet unit. The third magnet unit and the fourth magnet unit form a combined magnetic field in the magnetic axis direction of the second permanent magnet, which is in the same direction as the magnetic field of the second permanent magnet.

[0011] Specifically, the second magnet unit, the third magnet unit, and the fourth magnet unit provide the lifting force of the graphite wheel through the resultant force of the like-pole repulsion with the first magnet unit in the vertical direction.

[0012] Specifically, N first magnet units and N + 1 second permanent magnets are arrayed along the axis direction of the rotating shaft, forming a layout in which the second permanent magnet and the first magnet units are staggered.

[0013] Specifically, each of the first magnet units is symmetric along the length direction of the graphite wheel.

[0014] Specifically, heat pipes are symmetrically installed at both ends of the rotating shaft. The evaporation section of the heat pipe is inserted into the rotating shaft, and the condensation section of the heat pipe extends out of the end face of the rotating shaft.

[0015] Specifically, the graphite wheel is evenly distributed with a plurality of through holes around its own axis, and the through holes are parallel to the axis of the graphite wheel.

[0016] Specifically, the magnetic materials of the first magnet unit, the second magnet unit, the third magnet unit, and the fourth magnet unit are selected from iron or nickel.

[0017] Based on the above technical solutions, the beneficial effects of the present utility model are analyzed as follows:

[0018] The present utility model provides a graphite wheel mechanism, including:

[0019] A rotating shaft, a graphite wheel, and a magnetic support assembly. The magnetic support assembly includes a first magnet unit and a second magnet unit. The rotating shaft is horizontally arranged, and the graphite wheel is rotatably connected to the rotating shaft. The first magnet unit includes a plurality of first permanent magnets embedded in the graphite wheel and evenly distributed around the axis of the graphite wheel, and the magnetic axis of the first permanent magnet intersects with the axis of the graphite wheel. The second magnet unit includes a second permanent magnet embedded in the rotating shaft, and the magnetic axis of the second permanent magnet intersects with the axis of the rotating shaft in the vertical direction. The second magnet unit applies an upward magnetic force to the first magnet unit through the second permanent magnet, thereby providing a lifting force for the graphite wheel.

[0020] In specific applications, the rotating shaft is installed on the production line, and the graphite wheel is rotatably connected to the rotating shaft. An upward lifting force is provided by the magnetic force of the second magnet unit on the adjacent first permanent magnets in the first magnet unit. The provided lifting force is used to offset the load of the graphite wheel and the glass tube, and the graphite wheel enters a suspended state and rotates synchronously under the drive of the glass tube, avoiding relative sliding caused by excessive rotational resistance.

[0021] It can be seen that compared with the prior art, this graphite wheel mechanism realizes suspension by using the magnetic force between the first magnet unit and the second magnet unit as the lifting force to offset the load of the glass tube and the graphite wheel, significantly reducing the friction between the graphite wheel and the rotating shaft, ensuring that the graphite wheel can rotate smoothly during production, effectively reducing scratches on the surface of the glass tube, and improving the qualification rate of the glass tube and the overall product quality. It overcomes the technical problem that the existing graphite wheel mechanism has relative sliding with the glass tube due to being limited by resistance, resulting in scratching of the glass tube. Description of the Drawings

[0022] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0023] Figure 1 It is a schematic diagram of the overall structure of the graphite wheel mechanism provided by the embodiment of the present invention;

[0024] Figure 2 It is a schematic sectional view of the graphite wheel mechanism Figure 1 ;

[0025] Figure 3 It is a schematic sectional view of the graphite wheel mechanism Figure 2 ;

[0026] Figure 4 It is a schematic diagram of the structure at the graphite wheel.

[0027] Icon:

[0028] 001, glass tube;

[0029] 100, rotating shaft;

[0030] 200, graphite wheel; 201, through hole;

[0031] 300, magnetic support assembly; 310, first magnet unit; 311, first permanent magnet;

[0032] 320. The second magnet unit; 321. The second permanent magnet;

[0033] 330. The third magnet unit; 340. The fourth magnet unit;

[0034] 400. The bearing;

[0035] 500. The support column;

[0036] 600. The heat pipe. Detailed implementation manners

[0037] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. The components of the embodiments of the present utility model described and illustrated herein can generally be arranged and designed in a variety of different configurations.

[0038] Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0039] The following will describe in detail some implementation manners of the present utility model with reference to the accompanying drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0040] The existing graphite wheel mechanism has the technical problem that due to being limited by resistance, relative sliding occurs with the glass tube, resulting in scratching of the glass tube.

[0041] In view of this, the present utility model provides a graphite wheel mechanism, including:

[0042] A rotating shaft 100, a graphite wheel 200, and a magnetic support assembly 300. The magnetic support assembly 300 includes a first magnet unit 310 and a second magnet unit 320. The rotating shaft 100 is horizontally arranged, and the graphite wheel 200 is rotatably connected to the rotating shaft 100. The first magnet unit 310 includes a plurality of first permanent magnets 311 embedded in the graphite wheel 200 and evenly distributed around the axis of the graphite wheel 200. The magnetic axes of the first permanent magnets 311 intersect with the axis of the graphite wheel 200. The second magnet unit 320 includes a second permanent magnet 321 embedded in the rotating shaft 100. The magnetic axis of the second permanent magnet 321 intersects with the axis of the rotating shaft 100 in the vertical direction. The second magnet unit 320 applies an upward magnetic force to the first magnet unit 310 through the second permanent magnet 321, thereby providing a lifting force for the graphite wheel 200.

[0043] Based on the above technical solutions, the graphite wheel mechanism provided by the present utility model can achieve the following technical effects:

[0044] The graphite wheel mechanism realizes suspension by using the magnetic force between the first magnet unit 310 and the second magnet unit 320 as the lifting force to offset the load of the glass tube 001 and the graphite wheel 200, significantly reducing the friction between the graphite wheel 200 and the rotating shaft 100, ensuring that the graphite wheel 200 can rotate smoothly during production, effectively reducing scratches on the surface of the glass tube 001, and improving the qualification rate of the glass tube 001 and the overall product quality. It overcomes the technical problem that the existing graphite wheel mechanism has relative sliding with the glass tube due to being limited by resistance, resulting in scratching of the glass tube.

[0045] The following will combine Figures 1 to 4 to elaborate in detail on the structure and shape of the graphite wheel mechanism provided in this embodiment:

[0046] In the solution of this embodiment, the graphite wheel mechanism further includes bearings 400 and support columns 500. Two bearings 400 are respectively inserted at both ends of the graphite wheel 200 and sleeved on the rotating shaft 100, and both ends of the rotating shaft 100 are respectively inserted into the support columns 500. The bearings 400 are used to assist in positioning and fixing the radial position of the graphite wheel 200, and assist in supporting the load of the graphite wheel 200 and the glass tube 001, enhancing stability.

[0047] In order to limit the axial movement of the graphite wheel 200 along the rotating shaft 100 under the action of magnetic force, in the solution of this embodiment, the bearings 400 are set as angular contact ball bearings. The outer rings of the two angular contact ball bearings are inserted into the graphite wheel 200 and respectively abut against both ends of the graphite wheel 200. The inner rings of the two angular contact ball bearings are sleeved on the rotating shaft 100 and respectively abut against the support columns 500 to achieve axial positioning of the graphite wheel 200. Through the sequential abutting relationship of the support columns 500, angular contact ball bearings, and the graphite wheel 200, the axial movement of the graphite wheel 200 along the rotating shaft 100 under the action of magnetic force is avoided, enhancing the stability during the rotation process.

[0048] In order to further enhance the suspension support force of the magnetic support assembly 300, in the solution of this embodiment, the magnetic support assembly 300 further includes a third magnet unit 330 and a fourth magnet unit 340, and the third magnet unit 330 and the fourth magnet unit 340 are exactly the same as the second magnet unit 320. Multiple third magnet units 330 and an equal number of fourth magnet units 340 are symmetrically arranged on both sides of the second magnet unit 320. The third magnet unit 330 and the fourth magnet unit 340 form a combined magnetic field in the magnetic axis direction of the second permanent magnet 321 that is in the same direction as the magnetic field of the second permanent magnet 321. Among them, the magnetic materials of the first magnet unit 310, the second magnet unit 320, the third magnet unit 330, and the fourth magnet unit 340 can be selected as iron or nickel.

[0049] Specifically, each third magnet unit 330 and a fourth magnet unit 340 are mirror images of each other with respect to the magnetic axis of the second permanent magnet 321 in a plane perpendicular to the axis of the rotating shaft 100, and balance the horizontal force received by the graphite wheel 200 through equal and opposite deflection angles.

[0050] In the solution of this embodiment, the second magnet unit 320 is arranged on the upper half of the horizontal part of the rotating shaft 100, and provides the lifting force of the graphite wheel 200 through the resultant force in the vertical direction of the like-pole repulsion force with the first magnet unit 310.

[0051] In the solution of this embodiment, each third magnet unit 330 and each fourth magnet unit 340 are arranged on the upper half of the horizontal part of the rotating shaft 100, and provide the lifting force of the graphite wheel 200 through the resultant force in the vertical direction of the like-pole repulsion force with the first magnet unit 310.

[0052] In order to further optimize the axial positioning of the graphite wheel 200 and improve the stability of the graphite wheel 200 during rotation, in the solution of this embodiment, N first magnet units 310 and N + 1 second permanent magnets 321 are arrayed along the axis direction of the rotating shaft 100 to form a layout in which the second permanent magnets 321 and the first magnet units 310 are staggered. The two adjacent second permanent magnets 321 simultaneously apply repulsive forces to the middle first magnet unit 310, pushing the first magnet unit 310 to the equilibrium position between the two second permanent magnets 321, forming an automatic centering mechanism. The axial component forces are offset, and the graphite wheel 200 maintains an axially stable floating state. At the same time, the angular contact ball bearing is used as a safety redundancy measure for axial positioning to prevent the failure of the automatic centering mechanism, providing an additional stabilizing force to prevent the graphite wheel 200 from flying out axially.

[0053] Regarding the implementation process of the automatic centering mechanism, specifically:

[0054] When the first magnet unit 310 deviates from the equilibrium position, the repulsive force applied by the second permanent magnet 321 on the side where the first magnet unit 310 approaches increases, and the repulsive force applied by the second permanent magnet 321 on the side where the first magnet unit 310 moves away decreases. The first magnet unit 310 is automatically pushed back to the equilibrium position, the axial component forces are offset, and the first magnet unit 310 resumes equilibrium.

[0055] In the solution of this embodiment, each first magnet unit 310 is symmetric along the length direction of the graphite wheel 200, and the magnetic force action points thereof are accurately located at the center of gravity of the graphite wheel 200, ensuring the uniformity of the magnetic field and significantly improving the suspension performance. At the same time, the symmetric magnetic field layout helps to reduce the interference of the external magnetic field.

[0056] In order to enhance the heat dissipation performance of the graphite wheel mechanism, in the solution of this embodiment, heat pipes 600 are symmetrically installed at both ends of the rotating shaft 100, the evaporation section of the heat pipe 600 is inserted into the rotating shaft 100, and the condensation section of the heat pipe 600 extends out of the end surface of the rotating shaft 100. The heat in the center is quickly absorbed by the liquid absorption core of the evaporation section, and then the heat is conducted along the heat pipe 600 to the condensation section far from the center and dissipated into the environment, so as to avoid the rotating shaft 100 from being stuck with the graphite wheel 200 due to high temperature expansion, and at the same time, the heat accumulation is prevented to cause the magnetic properties of the permanent magnet to decrease, thereby improving the heat dissipation capacity of the graphite wheel 200.

[0057] In order to further enhance the heat dissipation performance of the graphite wheel mechanism, in the solution of this embodiment, the graphite wheel 200 is evenly distributed with multiple through holes 201 around its own axis. The graphite wheel 200 is evenly distributed with multiple through holes 201 around its own axis. The through holes 201 are parallel to the axis of the graphite wheel 200 and can circulate air as air cooling channels. The airflow takes away the heat of the graphite wheel mechanism, reduces the erosion of the graphite wheel 200 by high temperature, and also avoids the accumulation of heat to reduce the magnetic properties of the permanent magnet. In addition, the through holes 201 improve the response speed and energy efficiency of the system by reducing the weight of the graphite wheel 200.

[0058] In summary, the specific working process of the graphite wheel mechanism provided in this embodiment is as follows:

[0059] For example, the N pole of each first permanent magnet 311 faces the axis of the shaft 100 , and the second permanent magnet 321 , the third magnet unit 330 , and the fourth magnet unit 340 are all disposed in the horizontal upper half of the shaft 100 with the N pole facing upward.

[0060] The support column 500 is installed on the production line, the rotating shaft 100 is inserted into the support column 500, the graphite wheel 200 is sleeved on the rotating shaft 100, and automatically reaches the equilibrium position under the automatic centering mechanism. The second magnet unit 320 provides an upward lift by the same polar repulsion force on each adjacent first permanent magnet 311. The third magnet unit 330 and the fourth magnet unit 340 synthesize the same polar repulsion force on each adjacent first permanent magnet 311, the horizontal force components cancel each other, and the vertical upward force components provide an upward lift. The provided lift is used to offset the load of the graphite wheel 200 and the glass tube 001, and the graphite wheel 200 enters a suspended state and rotates synchronously driven by the glass tube 001 to avoid relative sliding caused by excessive rotation resistance. Among them, the bearing 400 provides a stable guide frame for the graphite wheel 200 to ensure that it maintains the correct position and direction in the suspended state, and at the same time serves as a safety backup to prevent the graphite wheel 200 from falling when the magnetic suspension fails. The through hole 201 and the heat pipe 600 continuously discharge the heat of the graphite wheel mechanism, reducing the erosion of the graphite wheel 200 by high temperature, preventing the shaft 100 from getting stuck with the graphite wheel 200 due to high temperature expansion, and preventing heat accumulation from causing a decrease in the magnetic properties of the permanent magnet.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A graphite wheel mechanism, characterized in that, Comprising: A rotating shaft (100), a graphite wheel (200), and a magnetic support assembly (300); The magnetic support assembly (300) includes a first magnet unit (310) and a second magnet unit (320); The rotating shaft (100) is horizontally arranged, and the graphite wheel (200) is rotatably connected to the rotating shaft (100); The first magnet unit (310) includes a plurality of first permanent magnets (311) embedded in the graphite wheel (200) and evenly distributed around the axis of the graphite wheel (200), and the magnetic axes of the first permanent magnets (311) intersect with the axis of the graphite wheel (200); The second magnet unit (320) includes a second permanent magnet (321) embedded in the rotating shaft (100), and the magnetic axis of the second permanent magnet (321) intersects with the axis of the rotating shaft (100) in the vertical direction; The second magnet unit (320) applies an upward magnetic force to the first magnet unit (310) through the second permanent magnet (321), thereby providing a lifting force for the graphite wheel (200).

2. The graphite wheel mechanism according to claim 1, characterized in that: It further includes a bearing (400) and a support column (500); Two of the bearings (400) are respectively inserted at both ends of the graphite wheel (200) and sleeved on the rotating shaft (100), and both ends of the rotating shaft (100) are respectively inserted into the support column (500).

3. The graphite wheel mechanism according to claim 2, characterized in that: The bearing (400) is set as an angular contact ball bearing; The outer rings of the two angular contact ball bearings are inserted into the graphite wheel (200) and respectively abut against both ends of the graphite wheel (200); The inner rings of the two angular contact ball bearings are sleeved on the rotating shaft (100) and respectively abut against the support column (500).

4. The graphite wheel mechanism according to claim 1, characterized in that: The magnetic support assembly (300) further includes a third magnet unit (330) and a fourth magnet unit (340); The third magnet unit (330) and the fourth magnet unit (340) are exactly the same as the second magnet unit (320); A plurality of the third magnet units (330) and an equal number of the fourth magnet units (340) are symmetrically arranged on both sides of the second magnet unit (320); The third magnet unit (330) and the fourth magnet unit (340) form a synthetic magnetic field in the same direction as the magnetic field of the second permanent magnet (321) in the magnetic axis direction of the second permanent magnet (321).

5. The graphite wheel mechanism according to claim 4, characterized in that: The second magnet unit (320), the third magnet unit (330), and the fourth magnet unit (340) provide the lifting force of the graphite wheel (200) through the resultant force of the like-pole repulsion with the first magnet unit (310) in the vertical direction.

6. The graphite wheel mechanism according to claim 5, characterized in that: The N first magnet units (310) and the N + 1 second permanent magnets (321) are arrayed along the axial direction of the rotating shaft (100), forming a layout in which the second permanent magnets (321) and the first magnet units (310) are arranged in an interleaved manner.

7. The graphite wheel mechanism according to claim 6, characterized in that: Each of the first magnet units (310) is evenly distributed along the length direction of the graphite wheel (200).

8. The graphite wheel mechanism according to claim 1, characterized in that: Heat pipes (600) are symmetrically installed at both ends of the rotating shaft (100); The evaporation section of the heat pipe (600) is inserted into the rotating shaft (100), and the condensation section of the heat pipe (600) extends out of the end face of the rotating shaft (100).

9. The graphite wheel mechanism according to claim 1, characterized in that: A plurality of through holes (201) are evenly distributed around the axis of the graphite wheel (200), and the through holes (201) are parallel to the axis of the graphite wheel (200).

10. The graphite wheel mechanism according to claim 4, characterized in that: The magnetic materials of the first magnet unit (310), the second magnet unit (320), the third magnet unit (330) and the fourth magnet unit (340) are selected from iron or nickel.

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