A single-layer graphene preparation roller-type resistance furnace

By introducing a counterweight structure and a servo motor into a drum-type resistance furnace for preparing single-layer graphene, the problem of eccentric force caused by the counterweight was solved, enabling smooth rotation of the furnace drum and efficient feeding and unloading.

CN224580680UActive Publication Date: 2026-07-31JIANGSU XIN JIANGNAN FURNACE IND TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU XIN JIANGNAN FURNACE IND TECH CO LTD
Filing Date
2025-06-13
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

In existing single-layer graphene preparation drum-type resistance furnaces, the counterweight causes eccentric force during the rotation of the furnace drum, affecting smooth operation and easily damaging the device.

Method used

The system employs a counterweight structure, which uses a ring and rubber sleeve design to automatically rotate the electric resistance furnace drum using the weight of the counterweight. The feed port and discharge port face upwards and downwards respectively. Combined with a servo motor and electric push rod, it achieves rapid feeding and unloading.

Benefits of technology

This enabled smooth rotation of the electric resistance furnace drum, improved feeding and unloading efficiency, and reduced the risk of equipment damage.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a drum-type resistance furnace for preparing single-layer graphene, including a support frame, on which a resistance furnace drum is rotatably connected via bearings. The top of the resistance furnace drum has a feed inlet, and the bottom of the drum has a discharge outlet. One end of the drum is connected to a servo motor. The furnace also includes a counterweight structure mounted on the support frame. The counterweight structure allows the feed inlet and discharge outlet to face upwards and downwards, respectively. This relates to the field of resistance furnace technology. By setting the counterweight structure, when feeding and unloading are required, an electric push rod extends and drives a sleeve to fit onto a rubber sleeve. The rubber sleeve elastically presses against the sleeve, and under the gravity of the counterweight, the resistance furnace drum automatically rotates, with the feed inlet and discharge outlet positioned at the top and bottom, respectively, thus enabling rapid feeding and unloading.
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Description

Technical Field

[0001] This utility model relates to the field of resistance furnace technology, specifically a drum-type resistance furnace for the preparation of single-layer graphene. Background Technology

[0002] Utility model patent CN219494808U discloses a drum-type resistance furnace for easy feeding and discharging, including a shell. Support legs are connected to the four corners of the lower side of the shell. A resistance furnace drum is rotatably mounted inside the shell. The left end of the resistance furnace drum is the feeding end and rotates through the left side wall of the shell. An equipment box is connected to the right end of the resistance furnace drum. The other end of the equipment box rotates through the right side wall of the shell. A feeding frame is connected to the left outer wall of the shell. A driven wheel is rotatably connected between the left and front side walls of the feeding frame. A conveyor belt is provided outside the driven wheel. The other side of the conveyor belt extends through the feeding frame and has a driving wheel inside. A mounting frame is connected between the front and rear sides of the driving wheel.

[0003] The above-mentioned patents have the following shortcomings: Although setting a counterweight on the electric resistance furnace drum allows the drum's opening to face downwards using its weight, the presence of the counterweight causes an eccentric force during the drum's rotation. This reduces the smoothness of the drum's operation and makes the device more susceptible to damage. Utility Model Content

[0004] In view of the problems existing in the existing drum-type resistance furnace for preparing single-layer graphene, this utility model is proposed.

[0005] Therefore, the purpose of this utility model is to provide a drum-type resistance furnace for the preparation of single-layer graphene, which solves the problem in the above-mentioned patent that, although setting a counterweight on the resistance furnace drum can make the opening of the resistance furnace drum face downward by using the gravity of the counterweight, the presence of the counterweight will cause an eccentric force during the rotation of the resistance furnace drum, thereby reducing the smoothness of the operation of the resistance furnace drum and easily damaging the device.

[0006] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution: A rotary resistance furnace for preparing single-layer graphene includes a support frame, on which a resistance furnace drum is rotatably connected via bearings. The top of the resistance furnace drum has a feed inlet, and the bottom of the resistance furnace drum has a discharge outlet. One end of the resistance furnace drum is driven and connected to a servo motor. The furnace also includes a counterweight structure installed on the support frame. The counterweight structure enables the feed inlet and discharge outlet to face upwards and downwards, respectively.

[0007] As a preferred embodiment of the drum-type resistance furnace for preparing single-layer graphene according to the present invention, wherein: a first supporting rotating shaft is fixedly installed at the left end of the resistance furnace drum, a first bearing seat is fixedly installed at the left end of the support frame, and the first supporting rotating shaft is rotatably connected to the first bearing seat through a bearing. A second support shaft is fixedly installed at the right end of the resistance furnace drum, and a second bearing seat is fixedly installed at the right end of the support frame. The second support shaft and the second bearing seat are rotatably connected by a bearing.

[0008] In a preferred embodiment of the drum-type resistance furnace for preparing single-layer graphene according to the present invention, a drive gear is fixedly installed on the output shaft of the servo motor, and a driven gear is fixedly installed at the end of the second support shaft, wherein the drive gear and the driven gear are meshed together. The servo motor is fixedly mounted on the motor support plate, and the motor support plate is welded to the support frame.

[0009] As a preferred embodiment of the drum-type resistance furnace for preparing single-layer graphene according to the present invention, wherein: the open end of the feed inlet is hinged to a feed inlet cover plate, and a buckle is provided between the other end of the feed inlet and the feed inlet cover plate. The opening end of the discharge port is hinged to a discharge port cover plate, and a buckle is provided between the other end of the discharge port and the discharge port cover plate.

[0010] As a preferred embodiment of the drum-type resistance furnace for preparing single-layer graphene according to the present invention, the counterweight structure includes a sleeve ring, a counterweight block is welded to the bottom of the sleeve ring, a rubber sleeve is fitted on the resistance furnace drum, and the rubber sleeve is bonded to the resistance furnace drum, and the left end of the rubber sleeve is frustoconical. The left end of the sleeve ring is rotatably connected to a support ring via a bearing, and the left end of the support ring is connected to an electric push rod, which is mounted on the support frame.

[0011] In a preferred embodiment of the drum-type resistance furnace for preparing single-layer graphene according to this utility model, the inner diameter of the right end of the sleeve ring is smaller than the outer diameter of the right end of the rubber sleeve.

[0012] Compared with existing technologies: By setting up a counterweight structure, when feeding and unloading are required, the electric push rod extends and drives the sleeve ring to fit onto the rubber sleeve. The rubber sleeve elastically presses against the sleeve ring. Under the gravity of the counterweight, the electric resistance furnace drum automatically rotates, and the feed port and discharge port are located at the top and bottom respectively, thus enabling rapid feeding and unloading. Attached Figure Description

[0013] Figure 1 This is a structural schematic diagram of the present invention; Figure 2 Provided by this utility model Figure 1 Enlarged view of point A in the middle; Figure 3 Provided by this utility model Figure 1 Enlarged view at point B in the middle; Figure 4 Provided by this utility model Figure 1 A schematic diagram of the counterweight structure connected to the drum of the resistance furnace.

[0014] In the diagram: 1. Support frame; 2. Resistance furnace drum; 3. Rubber sleeve; 4. Sleeve ring; 5. Support ring; 6. First support connecting seat; 7. Electric push rod; 8. Second support connecting seat; 9. First support rotating shaft; 10. Counterweight; 11. First bearing seat; 12. Second bearing seat; 13. Driven gear; 14. Drive gear; 15. Servo motor; 16. Second support rotating shaft; 17. Feed inlet; 18. Feed inlet cover plate; 19. Discharge outlet; 20. Discharge outlet cover plate. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0016] This invention provides a drum-type resistance furnace for the preparation of single-layer graphene. Please refer to [link / reference]. Figure 1-4 The system includes a support frame 1, on which a resistance furnace drum 2 is rotatably connected via bearings. The top of the resistance furnace drum 2 is provided with a feed port 17, and the bottom of the resistance furnace drum 2 is provided with a discharge port 19. One end of the resistance furnace drum 2 is connected to a servo motor 15. The system also includes a counterweight structure installed on the support frame 1. The counterweight structure enables the feed port 17 and the discharge port 19 to face upwards and downwards, respectively.

[0017] A first support shaft 9 is fixedly installed at the left end of the resistance furnace drum 2, and a first bearing seat 11 is fixedly installed at the left end of the support frame 1. The first support shaft 9 is rotatably connected to the first bearing seat 11 through a bearing. A second support shaft 16 is fixedly installed at the right end of the resistance furnace drum 2, and a second bearing seat 12 is fixedly installed at the right end of the support frame 1. The second support shaft 16 and the second bearing seat 12 are rotatably connected by a bearing.

[0018] A drive gear 14 is fixedly mounted on the output shaft of the servo motor 15, and a driven gear 13 is fixedly mounted on the end of the second support shaft 16. The drive gear 14 and the driven gear 13 are meshed together. The servo motor 15 is fixedly mounted on the motor support plate, which is welded to the support frame 1.

[0019] The open end of the feed inlet 17 is hinged to the feed inlet cover 18, and a buckle is provided between the other end of the feed inlet 17 and the feed inlet cover 18. The opening end of the discharge port 19 is hinged to the discharge port cover plate 20, and a buckle is provided between the other end of the discharge port 19 and the discharge port cover plate 20.

[0020] The counterweight structure includes a sleeve ring 4, with a counterweight block 10 welded to the bottom of the sleeve ring 4. A rubber sleeve 3 is fitted on the electric resistance furnace drum 2. The inner diameter of the right end of the sleeve ring 4 is smaller than the outer diameter of the right end of the rubber sleeve 3. Therefore, after the sleeve ring 4 is fitted on the rubber sleeve 3, it can drive the electric resistance furnace drum 2 to rotate under the action of the counterweight block 10. The rubber sleeve 3 is bonded to the electric resistance furnace drum 2. The left end of the rubber sleeve 3 is frustum-shaped. The left end of the sleeve ring 4 is rotatably connected to the support ring 5 via a bearing. The left end of the support ring 5 is connected to an electric push rod 7. Specifically, the left end of the support ring 5 is welded to a first support connecting seat 6. The electric push rod 7 is inserted into the inner wall of the first support connecting seat 6 and fixed to the electric push rod 7 with bolts. The electric push rod 7 is mounted on the support frame 1. Specifically, the support frame 1 is welded to a second support connecting seat 8. The electric push rod 7 is inserted into the inner wall of the second support connecting seat 8 and fixed to the electric push rod 7 with bolts. The electric push rod 7 is controlled by a synchronous controller in the control system, so the two electric push rods 7 extend and retract synchronously.

[0021] In practical use, such as Figure 1 As shown, at this time, neither the sleeve ring 4 nor the support ring 5 is in contact with the resistance furnace drum 2; the servo motor 15 drives the resistance furnace drum 2 to rotate, and when the processing is completed, the servo motor 15 stops working; the electric push rod 7 extends and drives the sleeve ring 4 to fit onto the rubber sleeve 3, and the rubber sleeve 3 elastically presses against the sleeve ring 4. Under the gravity of the counterweight 10, the resistance furnace drum 2 automatically rotates to the position shown. Figure 1 In this state, the inlet 17 and outlet 19 are at the top and bottom, respectively. Material can be quickly discharged through outlet 19 and injected through inlet 17.

[0022] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A rotary resistance furnace for preparing single-layer graphene, comprising a support frame (1), wherein a resistance furnace drum (2) is rotatably connected to the support frame (1) via bearings, the top of the resistance furnace drum (2) is provided with a feed inlet (17), the bottom of the resistance furnace drum (2) is provided with a discharge outlet (19), and one end of the resistance furnace drum (2) is drivenly connected to a servo motor (15), characterized in that: It also includes a counterweight structure installed on the support frame (1); the counterweight structure enables the feed inlet (17) and the discharge outlet (19) to face upward and downward respectively.

2. The single layer graphene production roller hearth furnace according to claim 1, wherein The left end of the resistance furnace drum (2) is fixedly installed with a first support shaft (9), and the left end of the support frame (1) is fixedly installed with a first bearing seat (11). The first support shaft (9) is rotatably connected to the first bearing seat (11) through the bearing. The right end of the resistance furnace drum (2) is fixedly installed with a second support shaft (16), and the right end of the support frame (1) is fixedly installed with a second bearing seat (12). The second support shaft (16) and the second bearing seat (12) are rotatably connected by a bearing.

3. A roller hearth resistance furnace for preparing single layer graphene according to claim 2, wherein, A drive gear (14) is fixedly mounted on the output shaft of the servo motor (15), and a driven gear (13) is fixedly mounted on the end of the second support shaft (16). The drive gear (14) and the driven gear (13) are meshed together. The servo motor (15) is fixedly mounted on the motor support plate, and the motor support plate is welded to the support frame (1).

4. The drum-type resistance furnace for preparing single-layer graphene according to claim 2, characterized in that, The opening end of the feed inlet (17) is hinged to the feed inlet cover plate (18), and a buckle is provided between the other end of the feed inlet (17) and the feed inlet cover plate (18). The opening end of the discharge port (19) is hinged to the discharge port cover plate (20), and a buckle is provided between the other end of the discharge port (19) and the discharge port cover plate (20).

5. A drum-type resistance furnace for preparing single-layer graphene according to claim 3, characterized in that, The counterweight structure includes a sleeve ring (4), a counterweight block (10) is welded to the bottom of the sleeve ring (4), a rubber sleeve (3) is sleeved on the electric resistance furnace drum (2), and the rubber sleeve (3) is bonded to the electric resistance furnace drum (2). The left end of the rubber sleeve (3) is frustoconical. The left end of the sleeve ring (4) is rotatably connected to a support ring (5) via a bearing. The left end of the support ring (5) is connected to an electric push rod (7), which is mounted on the support frame (1).

6. The drum-type resistance furnace for preparing single-layer graphene according to claim 3, characterized in that, The inner diameter of the right end of the sleeve ring (4) is smaller than the outer diameter of the right end of the rubber sleeve (3).