Lifting tool for thermal insulation cylinder of single crystal furnace

Abstract

The utility model relates to the technical field of lifting tools, in particular to a single crystal furnace heat preservation cylinder lifting tool which comprises an iron ring buckle, a support assembly, a contact plate, a buckle and a limiting hook, the iron ring buckle is used for being connected with external lifting equipment, the contact plate is connected with the iron ring buckle through the support assembly, and the buckle and the limiting hook are both arranged on the support assembly. The single crystal furnace heat preservation barrel lifting tool does not make direct contact with a high-temperature heat preservation barrel, and time and labor are saved.

Description

Technical Field

[0001] This utility model relates to the field of lifting tooling technology, and in particular to a lifting tooling for a single crystal furnace insulation cylinder. Background Technology

[0002] The hot zone components used in single crystal furnaces are constantly being worn out. For example, the foot plate interface of the heater is prone to breakage, the high-efficiency felt used in the insulation cylinder is prone to pulverization, moving the hot zone is time-consuming and labor-intensive, and the lower half of the crucible side is prone to cracking. These issues require further improvement, such as improvements in materials and structure, the use of automation, reducing damage, and extending the service life of the components.

[0003] During the dismantling and cleaning of the hot zone, the hot zone personnel use hemp ropes to hold the high-temperature insulation cylinder tightly. Then, two people wearing gloves stand facing each other to move, or a crucible cart is used to hold the hemp rope for movement. When the hemp rope holds the insulation cylinder tightly, the contact area with the insulation cylinder felt is small, about 20mm wide. The insulation cylinder used in the hot zone of the low-power Czochralski single crystal furnace has an integrated insulation cylinder and a double-layer insulation cylinder to reduce power consumption. It is difficult for two people to move and lift it. Four people are required to work in coordination. Falls and burns are likely to occur due to differences in the speed of movement or height. Therefore, the hot zone personnel need a high degree of cooperation, such as height, strength, and movement speed.

[0004] First, this situation not only poses a risk of burns from high temperatures, but also requires waiting for the hot zone components to cool to a certain temperature after the furnace is opened before disassembling and cleaning them. Moving the three insulation cylinders to the transport vehicle by hand is time-consuming and labor-intensive, resulting in inefficiency, non-standardization, cumbersome processes, and safety risks. Second, the insulation felt is held together with clamps, causing the felt to be concave at stress points and convex at non-stress points, resulting in an "S"-shaped surface. When the hemp rope is used to hold the insulation cylinder, it tends to move towards the concave areas, and the long-term tension exacerbates the damage to the insulation felt in these areas. Finally, during the movement of the insulation cylinders, gravity causes the insulation felt to shift up and down, resulting in unevenness and compactness on the top and bottom surfaces. This affects various standards for furnace loading, and repeated operations are inefficient and can easily increase crystal pulling power, reducing the yield per crystal.

[0005] In summary, the following shortcomings exist:

[0006] 1) The insulation cylinder felt is easily deformed and damaged. Multiple personnel in the hot field directly contact the lifting and moving of the high-temperature insulation cylinder, which is time-consuming, labor-intensive, and poses safety risks such as burns and falls.

[0007] 2) There is a crucible crane, but no tooling for lifting and moving the insulation cylinder, so it relies entirely on manpower. Utility Model Content

[0008] This utility model provides a lifting fixture for the insulation cylinder of a single crystal furnace, which reduces the number of personnel required to dismantle the furnace, avoids direct contact with the high-temperature insulation cylinder, saves time and effort, and prevents damage to the insulation cylinder felt.

[0009] The utility model discloses a single crystal furnace heat preservation cylinder promotes frock, including ferrule, support subassembly, contact plate, buckle and limit hook, ferrule is used for being connected with external hoisting equipment, contact plate is connected ferrule through support subassembly, and the embrace of single crystal furnace heat preservation cylinder promotes frock to the heat preservation bucket is completed through the clamping of buckle and limit hook and promotes.

[0010] As the optimization scheme of the utility model, the support subassembly includes upper hanging arm, lower hanging arm and support arm, the upper hanging arm and the lower hanging arm are connected through the hinged mode, the support arm is installed at the end of the lower hanging arm, and the contact plate is installed at both ends of the support arm.

[0011] As the optimization scheme of the utility model, the support arm is the arc structure, and the support arm is a pair of symmetrically arranged.

[0012] As the optimization scheme of the utility model, one end of the buckle is fixed on the upper hanging arm, and the limit hook is installed on the lower hanging arm.

[0013] As the optimization scheme of the utility model, the lower hanging arm is a pair, and the two lower hanging arms are connected through the fixed bolt.

[0014] As the optimization scheme of the utility model, the heat preservation bucket is provided with the surface felt corresponding to the contact plate.

[0015] As the optimization scheme of the utility model, the contact plate is inwardly curved, and the contact plate is the glass fiber plate or the polypropylene plate.

[0016] The utility model has the positive effect: the utility model has 4 contact surfaces with the heat preservation felt, and the contact area is relatively large, so the heat preservation felt is not scratched, the service life of the heat preservation felt is fully prolonged, and the crystal pulling power is not easily changed; secondly, the holding force of the frock on the heat preservation cylinder is uniform, and the heat preservation felt surface and the upper and lower surfaces are not easily displaced, so the furnace loading standard can be met by simple operation, the personnel workload is reduced, the working efficiency is improved; thirdly, the frock is simple to operate, one person operates the crucible crane, and one person operates the buckle to complete the lifting and moving of the heat preservation cylinder, the machine automation replaces manual work, and is simple and labor-saving; fourthly, two hot field personnel can disassemble and assemble the furnace, and a large cooperation degree is not needed, the selectivity of the hot field personnel is widened, the disassembly personnel do not need to directly contact the high-temperature heat preservation cylinder, and the occurrence of safety accidents can be reduced. ACCURACY

[0017] The utility model will be further explained in detail in connection with the drawings and specific embodiments.

[0018] Figure 1 It is the whole schematic diagram of the utility model;

[0019] Figure 2 It is the heat preservation bucket schematic diagram of the utility model;

[0020] Wherein: 1, iron ring buckle, 2, support assembly, 3, contact plate, 4, buckle, 5, limit hook, 6, fixing bolt, 7, heat preservation barrel, 21, upper hanging arm, 22, lower hanging arm, 23, support arm. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the patent embodiment clearer, the technical scheme in the patent embodiment will be clearly and completely described below with the drawings in the patent embodiment.

[0022] The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the patent nor its application or uses. Based on the embodiments in the patent, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the patent.

[0023] It should be noted that the terms used herein are only for the purpose of describing specific embodiments, and are not intended to limit the exemplary embodiments according to the patent.

[0024] Unless otherwise specified, the relative arrangement, numerical expressions and values of the components and steps set forth in these embodiments do not limit the scope of the patent. At the same time, it should be clear that the sizes of the various parts shown in the drawings are not drawn in proportion to the actual proportions. Techniques, methods and devices known to those skilled in the art can not be discussed in detail, and in all examples shown and discussed herein, any specific value should be interpreted as merely exemplary, not as a limitation. Therefore, other example values of the exemplary embodiments can have different values.

[0025] As Figure 1 The utility model discloses a single crystal furnace heat preservation cylinder promotes frock, including iron ring buckle 1, support assembly 2, contact plate 3, buckle 4 and limit hook 5, iron ring buckle 1 is used to be connected with external lifting equipment, contact plate 3 is connected iron ring buckle 1 through support assembly 2, and buckle 4 and limit hook 5 are all set up on support assembly 2, and the single crystal furnace heat preservation cylinder promotes frock to the heat preservation barrel 7 of the clamping of buckle 4 and limit hook 5 is completed. The single crystal furnace heat preservation cylinder promotes frock whole is iron material, and the flexible state is at buckle 4, and the most convenient is inter -card and loosening with the lifting hook of crucible car, and the bolt is used with whole support assembly 2 and is fixed together, and the replacement and convenient use. Limit hook 5 and support assembly 2 use movable bolt fixed, can move up and down to clamping and loosening heat preservation cylinder 7.

[0026] The bracket assembly 2 comprises an upper hanging arm 21, a lower hanging arm 22 and a supporting arm 23, the upper hanging arm 21 and the lower hanging arm 22 are connected in a hinged manner, the supporting arm 23 is installed at the end of the lower hanging arm 22, and the contact plate 3 is installed at both ends of the supporting arm 23. The supporting arm 23 is in an arc shape, and the supporting arm 23 is a pair of symmetrically arranged. The arc shape of the supporting arm 23 helps to disperse and balance the load, ensuring the stability of the bracket assembly 2 in the horizontal and vertical directions, and the lower hanging arm 22 is a pair, and the two lower hanging arms 22 are connected in a fixed bolt 6 manner, which reduces the possibility of shaking or tilting caused by uneven load.

[0027] One end of the buckle 4 is fixed on the upper hanging arm 21, and the limiting hook 5 is installed on the lower hanging arm 22.

[0028] As shown in Figure 2 The heat preservation barrel 7 is provided with a surface felt corresponding to the contact plate 3. The contact plate 3 is bent inward, and the contact plate 3 is a glass fiber plate or a polypropylene plate. The contact plate 3 is four, and the length and width are about 200mm and 100mm. Compared with the original contact area of the rope on the heat preservation cylinder felt, the contact area is greatly improved. In addition, in order to tightly hold the cylindrical heat preservation cylinder, the contact plate 3 is bent inward, the arc is about 160°, the material uses high-temperature-resistant glass fiber plate or polypropylene plate (PP plate), and the contact plate 3 is fixed with the bracket assembly 2 through bolts. When the contact plate 3 reaches the service life or is damaged, it is convenient to replace.

[0029] In the heat cylinder dismounting operation, first, the hook of the crucible hoist is connected with the iron ring buckle 1. The iron ring buckle 1 is the main connecting point of the external lifting device and the single crystal furnace heat cylinder lifting tool, which ensures the stability of the lifting process. When the heat cylinder 7 needs to be lifted, the whole tool is used to clamp the heat cylinder 7. The contact plates 3 are inwardly bent and designed to correspond to the surface felt on the heat cylinder 7, which ensures the close contact with the heat cylinder. The contact plates 3 are made of glass fiber plates or polypropylene plates, which not only have high temperature resistance, but also greatly increase the contact area with the heat cylinder and improve the holding force. The contact plates 3 are fixed with the support assembly 2 through bolts, and after the tool clamps the heat cylinder 7, the buckle 4 and the limiting hook 5 are interlocked. At this time, the buckle 4 is placed at the lowermost position to ensure that the tool can firmly hold the heat cylinder 7. Then, the lifting arm of the crucible hoist is raised, the support assembly 2 is stressed to shrink inwardly, and the heat cylinder 7 is further held tightly. Because the support arms 23 in the support assembly 2 adopt arc-shaped structure and symmetric arrangement, and the lower lifting arm 22 is stably connected through the fixing bolt 6, the whole tool can maintain high stability in horizontal and vertical directions, reducing the shaking or tilting caused by uneven load. Continue to raise the lifting arm, and the heat cylinder 7 can be lifted and moved to the required position. If the heat cylinder 7 needs to be loosened or lowered, the operation process is reversed. First, lower the lifting arm to lower the heat cylinder to the required position. Then, the interlocking state of the buckle 4 and the limiting hook 5 is released. Then, the lifting arm is raised, and the tool is lifted, and the heat cylinder and the tool are naturally separated. The whole tool is stably connected through the fixing bolt 6, which ensures the safety and reliability of the operation process. The efficient and safe lifting and movement of the heat cylinder are realized, and the operation efficiency is greatly improved.

[0030] The above specific embodiments further illustrate the purpose, technical solutions and advantages of the utility model, and it should be understood that the above description is only for specific embodiments of the utility model and does not limit the utility model. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A lifting fixture for a single crystal furnace insulation cylinder, characterized in that: The device includes an iron ring buckle (1), a support assembly (2), a contact plate (3), a buckle (4), and a limiting hook (5). The iron ring buckle (1) is used to connect to an external lifting device. The contact plate (3) is connected to the iron ring buckle (1) through the support assembly (2). The buckle (4) and the limiting hook (5) are both set on the support assembly (2). The single crystal furnace insulation cylinder lifting fixture clamps and lifts the insulation cylinder (7) by engaging the buckle (4) and the limiting hook (5).

2. The single crystal furnace insulation cylinder lifting fixture according to claim 1, characterized in that: The bracket assembly (2) includes an upper boom (21), a lower boom (22) and a support arm (23). The upper boom (21) and the lower boom (22) are connected by a hinge. The support arm (23) is installed at the end of the lower boom (22), and the contact plate (3) is installed at both ends of the support arm (23).

3. The single crystal furnace insulation cylinder lifting fixture according to claim 2, characterized in that: The support arm (23) has an arc-shaped structure and is arranged in a pair symmetrically.

4. The single crystal furnace insulation cylinder lifting fixture according to claim 3, characterized in that: One end of the buckle (4) is fixed on the upper boom (21), and the limit hook (5) is installed on the lower boom (22).

5. The single crystal furnace insulation cylinder lifting fixture according to claim 4, characterized in that: The lower booms (22) are a pair, and the two lower booms (22) are connected by fixing bolts (6).

6. The single crystal furnace insulation cylinder lifting fixture according to claim 5, characterized in that: The insulated bucket (7) is provided with a surface felt corresponding to the contact plate (3).

7. The single crystal furnace insulation cylinder lifting fixture according to claim 6, characterized in that: The contact plate (3) is bent inward and is made of fiberglass or polypropylene.

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