Lifting rod for lower thermal insulation barrel of single crystal furnace

Abstract

The utility model discloses a lifting rod for a lower thermal insulation barrel of a single crystal furnace, which comprises a lifting rod main body, adjusting and fixing sleeves are respectively arranged at the external positions of the upper end and the lower end of the lifting rod main body, and upper and lower connecting threads are respectively arranged at the connecting positions of the adjusting and fixing sleeves and the lifting rod main body. The optimal design of the lifting rod for the lower thermal insulation barrel of the single crystal furnace has the advantages that the service life of a soft felt of the lower thermal insulation barrel can be prolonged, the possibility that the felt of the lower thermal insulation barrel is artificially damaged is reduced, the replacement and maintenance cost is reduced, and the practicability is high. The reliability of the equipment is improved, a connecting method and a fixing measure are adopted in the operation steps, such as upper and lower threaded connection, stability increase by adjusting a long rod and additional chain fixation, so that the upper hoop after felt wrapping of the lower heat preservation cylinder can be effectively fixed and stabilized, and the equipment is ensured not to shake or loosen in the operation process; and the overall operation efficiency and safety are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field related to single crystal furnace structures, and particularly relates to a lifting rod for a heat preservation barrel under a single crystal furnace. Background Art

[0002] The Czochralski method is a common method for growing single crystals. Its working principle is to heat and melt the raw materials that make up the crystal in a crucible, attach a seed crystal to the surface of the melt, and pull the melt. Under controlled conditions, the atoms or molecules at the interface between the seed crystal and the melt continuously rearrange, gradually solidifying as the temperature decreases, and growing a single crystal. The insulation barrel felt is a device that prevents heat loss, and the service life of the insulation barrel felt directly affects the cost of crystal pulling. Actual production experience has revealed that some damage to the lower insulation barrel felt is abnormal. Therefore, eliminating this abnormal damage and extending the service life of the lower insulation barrel felt to achieve the goal of reducing costs and increasing efficiency is crucial for our company.

[0003] However, in existing single crystal furnaces, with the emergence of 140-32S elevated furnace table size, the travel of the lower insulation barrel becomes shorter during installation and disassembly, forcing the existing tooling to cause serious damage to the insulation barrel felt, thereby reducing the life of the lower insulation barrel soft felt. Utility Model Content

[0004] The purpose of the utility model is to provide a lifting rod for the lower insulation barrel of a single crystal furnace, so as to solve the problem raised in the above background technology that with the emergence of the 140-32S elevated furnace table size, the stroke of the lower insulation barrel becomes shorter during the installation and disassembly process, forcing the existing tooling to cause serious damage to the insulation barrel felt, thereby reducing the service life of the lower insulation barrel soft felt.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a lifting rod for a heat preservation barrel under a single crystal furnace, comprising a lifting rod body;

[0006] Adjustment and fixing sleeves are respectively provided at the outer positions of the upper and lower ends of the lifting rod body, and upper and lower connecting threads are respectively provided at the connection positions of the adjustment and fixing sleeve and the lifting rod body. A convex retaining ring is provided at the right position of the adjustment and fixing sleeve, and a winding mouth is opened at the inner position of the convex retaining ring. A connecting hole is provided at the inner position of the bottom of the convex retaining ring, and an adjustment long rod is provided at the inner position of the connecting hole.

[0007] Preferably, the convex retaining ring is connected to the adjustable fixing sleeve through an integrated connection method, and the connecting hole passes through the convex retaining ring.

[0008] Preferably, the adjusting rod is connected to the connecting hole by a threaded connection, and the length of the adjusting rod is not limited.

[0009] Preferably, a threaded hole is provided at the middle inner side of the adjusting and fixing sleeve, and the adjusting and fixing sleeve is connected to the lifting rod body through upper and lower connecting threads.

[0010] Preferably, the adjusting and fixing sleeve can be moved up and down and rotated on the lifting rod body through upper and lower connecting threads, and the adjusting and fixing sleeve and the lifting rod body are respectively made of metal materials.

[0011] Preferably, the adjusting long rod can be rotated and moved in the connecting hole through a thread, and the length of the lifting rod body is not limited, and the two adjusting fixing sleeves are of the same size.

[0012] Compared with the prior art, the present invention provides a lifting rod for the heat preservation barrel under the single crystal furnace, which has the following beneficial effects:

[0013] In a lifting rod for a heat preservation barrel under a single crystal furnace, the following advantages can be achieved by adjusting the arrangement of a fixing sleeve, a lifting rod body, upper and lower connecting threads, a threaded hole, a convex retaining ring, a winding opening, and a connecting hole:

[0014] This optimized design of the lifting rod for the lower insulation barrel of a single crystal furnace offers several benefits. First, it extends the service life of the lower insulation barrel's soft felt, reduces the likelihood of damage, and thus reduces replacement and repair costs, while also improving equipment reliability and uptime.

[0015] Secondly, the connection methods and fixing measures adopted in the operation steps, such as upper and lower connecting threaded connections, adjusting long rods to increase stability and additional chain fixation, can effectively fix and stabilize the upper clamp after the lower insulation tube is wrapped with felt, ensuring that the equipment will not shake or loosen during operation, thereby improving overall operating efficiency and safety.

[0016] In addition, the optimized design also simplifies the operating steps for operators, increases the convenience and operability of operation, reduces unnecessary troubles during operation, improves the work efficiency of operators, and reduces the risk of operational errors.

[0017] In summary, the optimized design of the lifting rod of the lower insulation barrel of the single crystal furnace provides more stable fixation and more reliable operation guarantee for the equipment, while extending the service life of the soft felt of the lower insulation barrel, bringing many benefits to equipment operation and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of the present utility model.

[0019] Figure 2 This is a structural diagram of the utility model in which the adjustment fixing sleeve is rotated and moved on the lifting rod body using the upper and lower connecting threads to reduce the spacing.

[0020] Figure 3 It is a structural diagram of the adjusting and fixing sleeve in the utility model.

[0021] Figure 4 It is a schematic structural diagram of the utility model after the adjusting long rod and the connecting hole on the convex supporting ring are separated.

[0022] In the picture:

[0023] 1. Lifting rod body; 2. Upper and lower connecting threads; 3. Adjustment and fixing sleeve; 4. Threaded hole; 5. Convex support ring; 6. Winding mouth; 7. Connecting hole; 8. Adjustment long rod. DETAILED DESCRIPTION

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

[0025] The utility model provides Figure 1-4 The illustrated lifting rod for the heat preservation barrel under a single crystal furnace comprises a lifting rod body 1;

[0026] Adjustment and fixing sleeves 3 are respectively provided at the external positions of the upper and lower ends of the lifting rod main body 1, and upper and lower connecting threads 2 are respectively provided at the connecting positions of the adjustment and fixing sleeve 3 and the lifting rod main body 1. A convex retaining ring 5 is provided at the right position of the adjustment and fixing sleeve 3, and a winding mouth 6 is opened at the inner position of the convex retaining ring 5. A connecting hole 7 is provided at the inner position of the bottom of the convex retaining ring 5, and an adjustment long rod 8 is provided at the inner position of the connecting hole 7.

[0027] like Figure 1-4 As shown, the convex collar 5 is connected to the adjusting and fixing sleeve 3 through an integrated connection method, the connecting hole 7 passes through the convex collar 5, the adjusting long rod 8 is connected to the connecting hole 7 through a threaded connection method, and the length of the adjusting long rod 8 is not limited. A threaded hole 4 is provided at the middle inner position of the adjusting and fixing sleeve 3, the adjusting and fixing sleeve 3 is connected to the lifting rod body 1 through the upper and lower connecting threads 2, the adjusting and fixing sleeve 3 can be moved up and down and rotated on the lifting rod body 1 through the upper and lower connecting threads 2, the adjusting and fixing sleeve 3 and the lifting rod body 1 are respectively made of metal materials, the adjusting long rod 8 can be rotated and moved in the connecting hole 7 through the thread, and the length of the lifting rod body 1 is not limited, and the two adjusting and fixing sleeves 3 are the same size.

[0028] The utility model preferably provides a lifting rod for the lower insulation barrel of a single crystal furnace to extend the life of the insulation felt. This design incorporates tooling for the installation and removal of the lower insulation barrel. This design is applicable to the 140-32S elevated furnace platform design, and achieves a longer service life for the lower insulation barrel soft felt.

[0029] Improvement: Change the existing tooling hook to directly contact the lower insulation felt during disassembly and assembly.

[0030] The direction of the force used when disassembling and assembling the existing tooling for the lower insulation tube is changed, thereby reducing the risk of human damage to the lower insulation tube felt and extending its service life.

[0031] Instructions: When wrapping the lower insulation barrel with felt and then attaching the clamp, the operator first needs to operate the adjustment sleeve 3 on the upper side of the lifting rod body 1. Remove the upper adjustment sleeve 3 by threading, so that the insulation barrel with the felt and clamp attached can be passed through the lifting rod body 1. Next, connect the upper adjustment sleeve 3 to the lifting rod body 1 using the upper and lower connecting threads 2. By rotating the threads, the convex ring 5 on the outer side of the upper adjustment sleeve 3 is in close contact with and presses against the insulation barrel, ensuring that the clamp is stuck between the upper and lower convex rings 5 and securely fixed.

[0032] The operator can then increase stability by connecting the adjustable rod 8. The adjustable rod 8 is connected to the connection hole 7 on the bottom side of the convex ring 5 by threading. The length of the adjustable rod 8 increases the contact area, preventing the insulation tube from shaking back and forth after being connected to the lifting rod body 1, thereby improving the overall stability.

[0033] In order to further ensure that the heat preservation tube is fixed, the operator can also use an additional chain to connect the winding mouth 6 and tie up the heat preservation tube. This ensures that the heat preservation tube is doubly fixed, increases stability and prevents movement.

[0034] By following these steps and using additional fixing methods, operators can effectively secure and stabilize the felt-wrapped lower insulation drum and the upper clamp, ensuring safe operation of the equipment. These measures also help prevent the insulation drum from loosening or shaking during use, improving overall operational efficiency and safety.

[0035] In addition, the operator needs to concentrate and operate in accordance with the standard during the fixing process to ensure that each step is correct. After the fixing is completed, the fixing parts should be checked to ensure that they are firm and reliable, and there are no omissions or loose parts.

[0036] Only after careful and detailed inspection can the equipment operate safely and reliably and avoid accidents. Operators should regularly check the fixing of the insulation cylinder and perform maintenance and adjustments in a timely manner to ensure the long-term stable operation of the equipment.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A lifting rod for a heat preservation barrel under a single crystal furnace, comprising a lifting rod body (1); Its characteristics are: Adjustment fixing sleeves (3) are respectively provided at the outer positions of the upper and lower ends of the lifting rod body (1), and upper and lower connection threads (2) are respectively provided at the connection positions of the adjustment fixing sleeve (3) and the lifting rod body (1). A convex retaining ring (5) is provided at the right position of the adjustment fixing sleeve (3), a winding opening (6) is provided at the inner position of the convex retaining ring (5), a connection hole (7) is provided at the inner position of the bottom of the convex retaining ring (5), and an adjustment long rod (8) is provided at the inner position of the connection hole (7).

2. The lifting rod for the heat preservation barrel under the single crystal furnace according to claim 1, characterized in that: The convex retaining ring (5) is connected to the adjusting and fixing sleeve (3) in an integrated connection manner, and the connecting hole (7) passes through the convex retaining ring (5).

3. The lifting rod for the heat preservation barrel under the single crystal furnace according to claim 2, characterized in that: The adjusting long rod (8) is connected to the connecting hole (7) by means of a threaded connection, and the length of the adjusting long rod (8) is not limited.

4. The lifting rod for the heat preservation barrel under the single crystal furnace according to claim 3, characterized in that: A threaded hole (4) is provided at the middle inner side of the adjusting and fixing sleeve (3), and the adjusting and fixing sleeve (3) is connected to the lifting rod body (1) via upper and lower connecting threads (2).

5. The lifting rod for the heat preservation barrel under the single crystal furnace according to claim 4, characterized in that: The adjusting and fixing sleeve (3) can be moved up and down and rotated on the lifting rod body (1) through upper and lower connecting threads (2); the adjusting and fixing sleeve (3) and the lifting rod body (1) are respectively made of metal materials.

6. The lifting rod for the heat preservation barrel under the single crystal furnace according to claim 5, characterized in that: The adjusting long rod (8) can be rotated and moved in the connecting hole (7) via a thread, and the length of the lifting rod body (1) is not limited, and the two adjusting fixed sleeves (3) are of the same size.

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