Graphite heater

Abstract

The utility model relates to the technical field of graphite heaters, in particular to a graphite heater which comprises a shell, a cover plate is arranged at the top of the shell, and a graphite frame and an electric heating rod are fixedly connected to the inner wall of the shell; the driving mechanism is used for driving a material to rotate in the shell and is arranged at the bottom end of the cover plate; the driving mechanism comprises a connecting frame rotationally connected to the inner wall of the cover plate, and the bottom end of the connecting frame is fixedly connected with a containing table. According to the device, a first servo motor, a crank and a driven block are utilized, intermittent rotation of a connecting frame and a containing table is achieved, it is guaranteed that a graphite heater can evenly heat materials on the containing table, then the heating effect of the graphite heater on the materials is improved, even heating of the materials is achieved through a first through hole and a second through hole, and the heating efficiency of the graphite heater is improved. And hot air in the graphite heater can be uniformly distributed on the surface of the material.

Description

Technical Field

[0001] The utility model relates to the technical field of graphite heaters, in particular to a graphite heater. Background Art

[0002] Graphite heater is a heating device that uses graphite as a heating element. It is usually used in heating equipment in industrial production, such as high-temperature smelting, heat treatment and other fields. As a high-temperature material, graphite has good thermal conductivity and high-temperature resistance, and is suitable for high-temperature heating occasions.

[0003] The Chinese patent "Graphite heater capable of maintaining thermal uniformity" authorization announcement number "CN220380281U" utilizes a fixed disk, a fixed heating rod and a drive motor to achieve rotational heating of the material, thereby ensuring uniform heating of the material.

[0004] However, the rotation of the fixed disk will drive the fixed heating rod and the material to rotate together, resulting in that the relative position of the fixed heating rod and the material will not change. As a result, the material will always heat slower at locations far away from the fixed heating rod, and heat faster at locations close to the fixed heating rod, resulting in uneven heating of the material by the graphite heater.

[0005] Therefore, a graphite heater is proposed to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a graphite heater in order to solve the above problems, thereby improving the problem of uneven heating of materials by the graphite heater.

[0007] The utility model achieves the above-mentioned purpose through the following technical solutions: a graphite heater, comprising: a shell, a cover plate is arranged on the top of the shell, a graphite frame and an electric heating rod are fixedly connected to the inner wall of the shell; a driving mechanism, the driving mechanism for driving the material to rotate in the shell is arranged at the bottom end of the cover plate; wherein the driving mechanism comprises a connecting frame rotatably connected to the inner wall of the cover plate, a placing table is fixedly connected to the bottom end of the connecting frame, a driven disk is fixedly connected to the top end of the connecting frame, a driven block distributed in an annular manner is fixedly connected to the top end of the driven disk, a first servo motor is fixedly connected to the top end of the cover plate, a crank is fixedly connected to the output shaft of the first servo motor, and a driving assembly is arranged at the bottom end of the cover plate. By using the first servo motor, the crank and the driven block, the intermittent rotation of the connecting frame and the placing table is realized, so as to ensure that the graphite heater can evenly heat the material on the placing table, thereby improving the heating effect of the graphite heater on the material.

[0008] Preferably, the driving assembly includes a plurality of first through holes formed on the surface of the connecting frame, and the top of the placing table is provided with an annularly distributed second through holes. The first through holes and the second through holes are used to achieve uniform heating of the material, ensuring that the hot air in the graphite heater can be evenly distributed on the surface of the material.

[0009] Preferably, a sealing ring is fixedly connected to the bottom end of the cover plate, and the surface of the sealing ring is clamped to the inner wall of the shell. The sealing ring is used to ensure the tightness of the cover plate clamped to the shell, reduce heat loss, and ensure the heating effect of the graphite heater on the material.

[0010] Preferably, a sliding cylinder is fixedly connected to the surface of the shell, a sliding rod is slidably connected to the inner wall of the sliding cylinder, and the top end of the sliding rod is fixedly connected to the bottom end of the cover plate.

[0011] Preferably, the top of the housing is fixedly connected with a second servo motor, the inner wall of the slide is rotatably connected with a lead screw, the output shaft of the second servo motor is fixedly connected to the bottom end of the lead screw, and the inner wall of the slide is threadedly connected to the surface of the lead screw. The second servo motor, the lead screw and the slide are used to adjust the position of the placement table and the connecting frame, thereby facilitating the material to be taken or placed on the placement table.

[0012] Preferably, the inner wall of the driven disk is rollingly connected with annularly distributed balls, and the surface of the balls is rollingly connected to the top of the cover plate. The balls are used to achieve smooth rotation of the driven disk on the cover plate, thereby reducing the rotation resistance of the placement table and the connecting frame.

[0013] Preferably, the inner wall of the slide cylinder is fixedly connected to a limit rod, and the inner wall of the slide rod is slidably connected to the surface of the limit rod. The limit rod is used to limit the moving slide rod, ensuring that the slide rod will not deviate when moving in the slide cylinder.

[0014] Preferably, the first through hole is in an isosceles trapezoidal shape, and the second through hole is in a truncated cone shape. The isosceles trapezoidal first through hole and the truncated cone-shaped second through hole enable the hot air in the housing to flow quickly into the material surface, thereby ensuring uniform heating of the material.

[0015] The beneficial effects of the utility model are:

[0016] 1. The first servo motor, the crank and the driven block are used to realize intermittent rotation of the connecting frame and the placing table, so as to ensure that the graphite heater can evenly heat the material on the placing table, thereby improving the heating effect of the graphite heater on the material. The first through hole and the second through hole are used to realize uniform heating of the material, so as to ensure that the hot air in the graphite heater can be evenly distributed on the surface of the material;

[0017] 2. A sealing ring is used to ensure the tightness of the cover plate connected to the shell, which reduces heat loss and ensures the heating effect of the graphite heater on the material. The isosceles trapezoidal first through hole and the truncated cone-shaped second through hole are used to enable the hot air in the shell to flow quickly to the surface of the material, thereby ensuring the uniformity of heating the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a cross-sectional view of the housing and the drive assembly of the utility model;

[0020] Figure 3 This is a schematic diagram of the driving mechanism structure of the utility model;

[0021] Figure 4 for Figure 3 A magnified view of middle;

[0022] Figure 5 for Figure 3 Enlarged view of B.

[0023] In the figure: 1. shell; 2. cover plate; 3. graphite frame; 4. electric heating rod; 5. driving mechanism; 51. placing table; 52. connecting frame; 53. driven disk; 54. driven block; 55. crank; 56. first servo motor; 57. driving assembly; 571. first through hole; 572. second through hole; 573. slide cylinder; 574. slide rod; 575. screw rod; 576. second servo motor; 577. limit rod; 578. sealing ring; 579. ball bearing. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] When implementing: Figure 1-5As shown, a graphite heater comprises: a shell 1, a cover plate 2 is arranged on the top of the shell 1, a graphite frame 3 and an electric heating rod 4 are fixedly connected to the inner wall of the shell 1; a driving mechanism 5, which is used to drive the material to rotate in the shell 1 and is arranged at the bottom end of the cover plate 2; wherein the driving mechanism 5 comprises a connecting frame 52 rotatably connected to the inner wall of the cover plate 2, a placing table 51 is fixedly connected to the bottom end of the connecting frame 52, a driven disk 53 is fixedly connected to the top end of the connecting frame 52, a driven block 54 distributed in an annular manner is fixedly connected to the top end of the driven disk 53, and a driving mechanism 53 is fixedly connected to the top end of the cover plate 2. A first servo motor 56 is fixedly connected to the end, and a crank 55 is fixedly connected to the output shaft of the first servo motor 56. A driving assembly 57 is arranged at the bottom end of the cover plate 2. The driving assembly 57 includes a plurality of first through holes 571 opened on the surface of the connecting frame 52. A ring-shaped second through hole 572 is opened on the top of the placing table 51. The shape of the first through hole 571 is an isosceles trapezoidal shape, and the shape of the second through hole 572 is a truncated cone. The inner wall of the driven disk 53 is rollingly connected with a ring-shaped ball 579, and the surface of the ball 579 is rollingly connected to the top of the cover plate 2.

[0026] When the material needs to be heated, the material to be heated is placed on the placement table 51, the cover plate 2 is driven to move down and abut against the top of the shell 1, the graphite frame 3, the electric heating rod 4 and the first servo motor 56 are started, and the output shaft of the first servo motor 56 rotates to drive the crank 55 to rotate, and the crank 55 rotates between the corresponding two driven blocks 54 to drive the driven disk 53 and the driven block 54 to rotate a little, so that the driven disk 53, the connecting frame 52 and the placement table 51 rotate intermittently, and then the material rotates intermittently in the inner circle of the graphite frame 3. At this time, the heat generated by the graphite frame 3 and the electric heating rod 4 is transmitted to various parts of the material through the first through hole 571 and the second through hole 572 for uniform heating.

[0027] like Figure 2 As shown, a sealing ring 578 is fixedly connected to the bottom end of the cover plate 2, and the surface of the sealing ring 578 is clamped to the inner wall of the housing 1. The sealing ring 578 ensures the sealing performance of the cover plate 2 against the housing 1.

[0028] like Figure 2 As shown, a slide 573 is fixedly connected to the surface of the shell 1, a slide rod 574 is slidably connected to the inner wall of the slide 573, the top of the slide rod 574 is fixedly connected to the bottom end of the cover plate 2, a second servo motor 576 is fixedly connected to the top of the shell 1, a screw rod 575 is rotatably connected to the inner wall of the slide 573, the output shaft of the second servo motor 576 is fixedly connected to the bottom end of the screw rod 575, the inner wall of the slide rod 574 is threadedly connected to the surface of the screw rod 575, the inner wall of the slide 573 is fixedly connected to the limit rod 577, and the inner wall of the slide rod 574 is slidably connected to the surface of the limit rod 577.

[0029] It should be noted that the graphite frame 3, the electric heating rod 4, the first servo motor 56 and the second servo motor 576 in the above description are all devices with relatively mature application of existing technologies. The specific models can be selected according to actual needs. At the same time, the graphite frame 3, the electric heating rod 4, the first servo motor 56 and the second servo motor 576 can be powered by a built-in power supply or by AC power. The specific power supply method is selected according to the situation and will not be elaborated here.

[0030] When it is necessary to take the material heated in the graphite heater, start the second servo motor 576, and the output shaft of the second servo motor 576 rotates to drive the screw rod 575 to rotate. The rotation of the screw rod 575 drives the slide bar 574 to move on the limit rod 577 and drives the cover plate 2 to move upward. The upward movement of the cover plate 2 drives the connecting frame 52 and the placement table 51 to move up to the appropriate position, and the material on the placement table 51 can be taken.

[0031] When the utility model is in use, the material to be heated is placed on the placement table 51, and the second servo motor 576 is started. The output shaft of the second servo motor 576 drives the cover plate 2 to move down and contact the top of the shell 1 through the screw rod 575 and the slide rod 574, and the graphite frame 3, the electric heating rod 4 and the first servo motor 56 are started. The output shaft of the first servo motor 56 rotates through the crank 55, the driven block 54 and the driven disk 53 to drive the connecting frame 52 and the placement table 51 to rotate intermittently, thereby making the material intermittently rotate in the inner circle of the graphite frame 3. At this time, the heat generated by the graphite frame 3 and the electric heating rod 4 is transmitted to various parts of the material through the first through hole 571 and the second through hole 572, so as to be evenly heated.

[0032] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A graphite heater, characterized in that: include: A shell (1), wherein a cover plate (2) is arranged on the top of the shell (1), and a graphite frame (3) and an electric heating rod (4) are fixedly connected to the inner wall of the shell (1); A driving mechanism (5) for driving the material to rotate in the housing (1), wherein the driving mechanism (5) is arranged at the bottom end of the cover plate (2); The driving mechanism (5) comprises a connecting frame (52) rotatably connected to the inner wall of the cover plate (2); the bottom end of the connecting frame (52) is fixedly connected to a placing table (51); the top end of the connecting frame (52) is fixedly connected to a driven disk (53); the top end of the driven disk (53) is fixedly connected to an annularly distributed driven block (54); the top end of the cover plate (2) is fixedly connected to a first servo motor (56); the output shaft of the first servo motor (56) is fixedly connected to a crank (55); and the bottom end of the cover plate (2) is provided with a driving assembly (57).

2. A graphite heater according to claim 1, characterized in that: The driving assembly (57) comprises a plurality of first through holes (571) formed on the surface of the connecting frame (52), and the top of the placing platform (51) is provided with annularly distributed second through holes (572).

3. A graphite heater according to claim 1, characterized in that: A sealing ring (578) is fixedly connected to the bottom end of the cover plate (2), and the surface of the sealing ring (578) is snap-fitted to the inner wall of the shell (1).

4. A graphite heater according to claim 1, characterized in that: A slide cylinder (573) is fixedly connected to the surface of the housing (1), a slide rod (574) is slidably connected to the inner wall of the slide cylinder (573), and the top end of the slide rod (574) is fixedly connected to the bottom end of the cover plate (2).

5. A graphite heater according to claim 4, characterized in that: A second servo motor (576) is fixedly connected to the top of the housing (1), a screw rod (575) is rotatably connected to the inner wall of the slide cylinder (573), an output shaft of the second servo motor (576) is fixedly connected to the bottom end of the screw rod (575), and the inner wall of the slide rod (574) is threadedly connected to the surface of the screw rod (575).

6. A graphite heater according to claim 1, characterized in that: The inner wall of the driven disk (53) is rollingly connected with annularly distributed balls (579), and the surface of the balls (579) is rollingly connected to the top of the cover plate (2).

7. A graphite heater according to claim 4, characterized in that: The inner wall of the slide cylinder (573) is fixedly connected to the limiting rod (577), and the inner wall of the slide rod (574) is slidably connected to the surface of the limiting rod (577).

8. A graphite heater according to claim 2, characterized in that: The shape of the first through hole (571) is an isosceles trapezoid, and the shape of the second through hole (572) is a truncated cone.

Images