Thermal field structure convenient to disassemble and assemble

Abstract

The utility model discloses a thermal field structure convenient to disassemble and assemble, which comprises a lower furnace barrel, an upper furnace barrel arranged at the top of the lower furnace barrel and a furnace bottom heat preservation layer arranged on the inner side of the lower furnace barrel, and an upper heat preservation barrel, a middle heat preservation barrel and a lower heat preservation barrel are sequentially arranged on the inner side of the upper furnace barrel and the inner side of the lower furnace barrel from top to bottom. The upper heat preservation barrel, the middle heat preservation barrel and the lower heat preservation barrel are each of a solidified felt structure, a lifting structure is arranged at the bottom of the lower heat preservation barrel, and a connecting arm fixed to the lifting structure is arranged on the inner wall of the upper furnace barrel. According to the thermal field structure convenient to disassemble and assemble, the upper heat preservation cylinder, the middle heat preservation cylinder and the lower heat preservation cylinder are made into a solidified felt structure and are matched with the fixing supports, the supporting protrusions and the connecting arms connected with the inner wall of the upper furnace cylinder, so that the upper heat preservation cylinder, the middle heat preservation cylinder and the lower heat preservation cylinder can ascend and descend along with the upper furnace cylinder conveniently, labor hours can be saved, and the disassembly and assembly efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of single crystal furnaces, in particular to a thermal field structure which is convenient for disassembly and assembly. Background Art

[0002] The Czochralski method is currently a commonly used method for growing single crystals. Its working principle is to heat and melt the raw materials that make up the crystal in a crucible, connect a seed crystal to the surface of the melt and pull the melt. Under controlled conditions, the atoms or molecules of the seed crystal and the melt are continuously rearranged at the interface, and as the temperature drops, they gradually solidify and grow into a single crystal. The thermal field provides the place for the growth of single crystals.

[0003] At present, the known thermal field structure is composed of an upper insulation barrel, a middle insulation barrel and a lower insulation barrel. The outer layer of the insulation barrel is wrapped with soft felt for insulation. When disassembling and assembling, the insulation barrels need to be disassembled and assembled one by one, which is time-consuming and labor-intensive and affects efficiency.

[0004] Therefore, it is necessary to propose a thermal field structure that is easy to disassemble and assemble to solve the above problems. Utility Model Content

[0005] The main purpose of the utility model is to provide a thermal field structure that is easy to disassemble and assemble, which can effectively solve the problems in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A heat field structure that is convenient for disassembly and assembly, comprising a lower furnace drum, an upper furnace drum arranged on the top of the lower furnace drum, and a furnace bottom insulation layer arranged on the inner side of the lower furnace drum, wherein the inner sides of the upper furnace drum and the lower furnace drum are sequentially provided with an upper insulation drum, a middle insulation drum, and a lower insulation drum from top to bottom, and the upper insulation drum, the middle insulation drum, and the lower insulation drum are cured felt structures, a lifting structure is arranged at the bottom of the lower insulation drum, and a connecting arm fixed to the lifting structure is arranged on the inner wall of the upper furnace drum;

[0008] The lifting structure comprises a fixed support arranged between the lower insulation tube and the furnace bottom insulation layer, and the top periphery of the fixed support is evenly provided with supporting protrusions.

[0009] Preferably, the fixing bracket is an annular steel plate structure, the supporting protrusion is cylindrical, and a plurality of supporting protrusions have the same height.

[0010] Preferably, the connecting arm is a steel plate structure, the lower end of the connecting arm is fixedly connected to the fixing bracket, and the upper end is detachably connected to the side wall of the upper furnace drum via a hanging structure.

[0011] Preferably, the hanging structure includes a fixing seat evenly fixedly connected to the inner wall of the lower end of the upper furnace drum, a hanging groove is arranged on the top of the fixing seat, a hanging piece cooperating with the hanging groove is arranged on the upper end of the connecting arm, and the hanging piece is in an "L" shape.

[0012] Preferably, a damping spring is provided at the inner bottom of the hanging groove, and when the fixed support contacts the insulation layer of the furnace bottom, there is a gap between the lower end of the hanging piece and the upper end of the damping spring.

[0013] Preferably, a limiting assembly is provided on the side wall of the connecting arm, and the limiting assembly includes a cylinder body arranged on the side of the connecting arm facing the lower insulation cylinder, a movable rod is movably connected to the inner side of one end of the cylinder body facing the lower insulation cylinder, a spring is provided between the movable rod and the inner wall of the cylinder body, and a limiting plate is provided on the end of the movable rod away from the cylinder body.

[0014] Preferably, the side of the limit plate facing the lower heat-insulating cylinder is an arc-shaped surface, and the side of the limit plate facing the lower heat-insulating cylinder is in close contact with the side wall of the lower heat-insulating cylinder.

[0015] Beneficial Effects

[0016] Compared with the prior art, the utility model provides a thermal field structure that is easy to disassemble and assemble, and has the following beneficial effects:

[0017] 1. The heat field structure which is convenient for disassembly and assembly makes the upper insulation tube, the middle insulation tube and the lower insulation tube into a cured felt structure, and cooperates with the fixed support, the supporting protrusion and the connecting arm connected to the inner wall of the upper furnace drum to facilitate the upper insulation tube, the middle insulation tube and the lower insulation tube to follow the upper furnace drum to rise and fall, thereby saving working hours and improving the disassembly and assembly efficiency. Moreover, since the connecting arm of the fixed support is connected to the inner wall of the upper furnace drum, it is convenient for the upper insulation tube, the middle insulation tube and the lower insulation tube to follow the rotation when the upper furnace drum rotates.

[0018] 2. The heat field structure that is easy to disassemble and assemble can make the hanging part contact with the damping spring and generate pressure when lifting the upper furnace drum through the damping spring, so that the damping spring can generate a reverse force, which can buffer shock and provide buffer protection, and can increase stability during lifting.

[0019] 3. The heat field structure that is easy to disassemble and assemble can increase the stability of the lower insulation cylinder through the cooperation of the cylinder, movable rod, limit plate and spring, avoiding the instability caused by the gap between the lower insulation cylinder and the connecting arm. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 It is a three-dimensional structural schematic diagram of the fixing bracket of the utility model;

[0022] Figure 3 This utility model Figure 1 Enlarged view of point A in the middle.

[0023] In the figure: 1. lower furnace drum; 2. upper furnace drum; 3. upper insulation drum; 4. middle insulation drum; 5. lower insulation drum; 6. furnace bottom insulation layer; 7. fixing bracket; 8. supporting protrusion; 9. connecting arm; 10. hanging part; 11. hanging groove; 12. fixing seat; 13. damping spring; 14. cylinder; 15. movable rod; 16. limit plate; 17. spring. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] like Figure 1-3 As shown, a heat field structure convenient for disassembly and assembly comprises a lower furnace drum 1, an upper furnace drum 2 arranged on the top of the lower furnace drum 1, and a furnace bottom insulation layer 6 arranged on the inner side of the lower furnace drum 1, an upper insulation drum 3, a middle insulation drum 4, and a lower insulation drum 5 are arranged on the inner sides of the upper furnace drum 2 and the lower furnace drum 1 from top to bottom, and the upper insulation drum 3, the middle insulation drum 4, and the lower insulation drum 5 are cured felt structures, and the inner walls of the cured felt are coated with an inner layer coating resistant to high temperature and corrosion, a lifting structure is arranged at the bottom of the lower insulation drum 5, and a connecting arm 9 fixed to the lifting structure is arranged on the inner wall of the upper furnace drum 2;

[0026] Furthermore, the lifting structure includes a fixed support 7 arranged between the lower insulation tube 5 and the furnace bottom insulation layer 6. The fixed support 7 is an annular steel plate structure. Support protrusions 8 are evenly arranged on the outer periphery of the top of the fixed support 7. The support protrusions 8 are cylindrical, and multiple support protrusions 8 have the same height.

[0027] Furthermore, the connecting arm 9 is a steel plate structure, the lower end of the connecting arm 9 is fixedly connected to the fixing bracket 7, and the upper end is detachably connected to the side wall of the upper furnace drum 2 through a hanging structure;

[0028] As a preferred embodiment, the hanging structure includes a fixing seat 12 evenly fixedly connected to the inner wall of the lower end of the upper furnace tube 2, a hanging groove 11 is arranged on the top of the fixing seat 12, and a hanging member 10 which is hung and matched with the hanging groove 11 is arranged on the upper end of the connecting arm 9, and the hanging member 10 is in an "L" shape.

[0029] Furthermore, a damping spring 13 is provided at the inner bottom of the hanging groove 11 , and when the fixing bracket 7 contacts the furnace bottom insulation layer 6 , there is a gap between the lower end of the hanging member 10 and the upper end of the damping spring 13 .

[0030] Furthermore, a limiting assembly is provided on the side wall of the connecting arm 9, and the limiting assembly includes a cylinder body 14 arranged on the side of the connecting arm 9 facing the lower insulation cylinder 5, and a movable rod 15 is movably connected to the inner side of one end of the cylinder body 14 facing the lower insulation cylinder 5, and a spring 17 is provided between the movable rod 15 and the inner wall of the cylinder body 14, and a limiting plate 16 is provided on the end of the movable rod 15 away from the cylinder body 14, and the side of the limiting plate 16 facing the lower insulation cylinder 5 is an arc-shaped surface, and the side of the limiting plate 16 facing the lower insulation cylinder 5 is in close contact with the side wall of the lower insulation cylinder 5.

[0031] It should be noted that the utility model is a thermal field structure that is convenient for disassembly and assembly. When in use, the upper insulation tube 3, the middle insulation tube 4, and the lower insulation tube 5 are made into a cured felt structure, the upper end of the connecting arm 9 is hung with the hanging groove 11 through the hanging piece 10, the bottom of the connecting arm 9 is fixed with the fixed support 7, the upper furnace tube 2 and the lower furnace tube 1 are spliced, the upper insulation tube 3, the middle insulation tube 4, and the lower insulation tube 5 are placed on the fixed support 7, and are supported by a plurality of supporting protrusions 8, and the side of the lower insulation tube 5 is limited by the limiting plate 16. The limiting plate 16 is in close contact with the lower insulation tube 5, and the spring 17 is compressed on the inner side of the cylinder body 14 through the movable rod 15. The spring 17 generates a reverse force, which increases the space between the limiting plate 16 and the lower insulation tube 5. Stability, can also adapt to lower insulation tube 5 of different sizes, when lifting is needed, the lifting equipment lifts the upper furnace tube 2 up, the upper furnace tube 2 moves upward to drive the fixed seat 12 to move upward, and then the damping spring 13 contacts with the bottom of the hanging part 10, and then the damping spring 13 is compressed, and then it can be buffered and shock-absorbing, increase stability, and can buffer and protect the hanging part 10 and other structures, then the connecting arm 9 lifts the upper insulation tube 3, the middle insulation tube 4, and the lower insulation tube 5 as a whole through the fixed support 7, which is convenient for the disassembly and assembly of the upper insulation tube 3, the middle insulation tube 4, and the lower insulation tube 5, and due to the connection between the hanging part 10 and the hanging groove 11, the upper furnace tube 2 can drive the upper insulation tube 3, the middle insulation tube 4, and the lower insulation tube 5 to rotate when it rotates.

[0032] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A heat field structure that is easy to disassemble and assemble, comprising a lower furnace drum (1), an upper furnace drum (2) arranged on the top of the lower furnace drum (1), and a furnace bottom insulation layer (6) arranged on the inner side of the lower furnace drum (1), characterized in that: An upper heat-insulating tube (3), a middle heat-insulating tube (4), and a lower heat-insulating tube (5) are sequentially arranged on the inner sides of the upper furnace tube (2) and the lower furnace tube (1) from top to bottom, and the upper heat-insulating tube (3), the middle heat-insulating tube (4), and the lower heat-insulating tube (5) are solidified felt structures, a lifting structure is arranged at the bottom of the lower heat-insulating tube (5), and a connecting arm (9) fixed to the lifting structure is arranged on the inner wall of the upper furnace tube (2); The lifting structure comprises a fixed support (7) arranged between the lower insulation tube (5) and the furnace bottom insulation layer (6), and the top periphery of the fixed support (7) is evenly provided with supporting protrusions (8).

2. A thermal field structure that is easy to disassemble and assemble according to claim 1, characterized in that: The fixing bracket (7) is an annular steel plate structure, the supporting protrusion (8) is cylindrical, and a plurality of supporting protrusions (8) have the same height.

3. The thermal field structure that is easy to disassemble and assemble according to claim 2, characterized in that: The connecting arm (9) is a steel plate structure, the lower end of the connecting arm (9) is fixedly connected to the fixing bracket (7), and the upper end is detachably connected to the side wall of the upper furnace drum (2) via a hanging structure.

4. The thermal field structure that is easy to disassemble and assemble according to claim 3, characterized in that: The hanging structure comprises a fixing seat (12) evenly fixedly connected to the inner wall of the lower end of the upper furnace drum (2), a hanging groove (11) is arranged at the top of the fixing seat (12), and a hanging piece (10) hanging and cooperating with the hanging groove (11) is arranged at the upper end of the connecting arm (9), and the hanging piece (10) is in an "L" shape.

5. The thermal field structure that is easy to disassemble and assemble according to claim 4, characterized in that: A damping spring (13) is provided at the inner bottom of the hanging groove (11), and when the fixing bracket (7) contacts the furnace bottom insulation layer (6), a gap exists between the lower end of the hanging member (10) and the upper end of the damping spring (13).

6. The thermal field structure that is easy to disassemble and assemble according to claim 5, characterized in that: A limit assembly is provided on the side wall of the connecting arm (9), and the limit assembly comprises a cylinder (14) provided on the side of the connecting arm (9) facing the lower heat-insulating cylinder (5), a movable rod (15) is movably connected to the inner side of one end of the cylinder (14) facing the lower heat-insulating cylinder (5), a spring (17) is provided between the movable rod (15) and the inner wall of the cylinder (14), and a limit plate (16) is provided on the end of the movable rod (15) away from the cylinder (14).

7. The thermal field structure that is easy to disassemble and assemble according to claim 6, characterized in that: The side of the limit plate (16) facing the lower heat-insulating cylinder (5) is an arc-shaped surface, and the side of the limit plate (16) facing the lower heat-insulating cylinder (5) is in close contact with the side wall of the lower heat-insulating cylinder (5).

Images