A single crystal furnace heavy hammer anti-off and anti-hanging device

Abstract

The utility model relates to single crystal furnace automatic crystal pulling device field, concretely relates to a single crystal furnace heavy hammer anti -drop anti -hang device, including heavy hammer and heavy hammer sheath, heavy hammer top is provided with the traction assembly, and heavy hammer sheath is located heavy hammer top, and the outer wall of heavy hammer sheath has the slope, adopted the heavy hammer sheath of top for conical structure, through the conical structure of top when heavy hammer and the right angle edge of vice chamber contact, the traction force that goes up will not cause heavy hammer to incline, but will shift to the lateral, and continue to keep the state of vertical, avoided the accident such as heavy hammer damage of tungsten wire rope breakage that the heavy hammer automatic lifting process appeared to shake or the material cylinder inclination, still through the heavy hammer sheath full -wraped mode to the snail pendant all -round wrap, prevented the snail pendant horizontal slip, the snail pendant can also limit the top of internal limit ball, kept the stability of limit ball in heavy hammer aperture position, when tungsten wire rope does not pull up heavy hammer, limit ball still is located in the middle.

Description

Technical Field

[0001] This utility model relates to the field of automatic crystal pulling equipment for single crystal furnaces, specifically to a device for preventing the weight of a single crystal furnace from detaching or getting stuck. Background Technology

[0002] In the Czochralski process for single crystal production, molten silicon is pulled upwards in a single crystal furnace. A weight is a crucial component in this process; connected to the seed crystal via a tungsten wire rope, the weight holds the seed crystal in the correct position and controls the crystal growth rate during the pulling process. The design and material selection of the weight must consider its stability at high temperatures to ensure that temperature variations do not affect its performance during crystal growth.

[0003] Currently, if the position of the counterweight deviates when it contacts the right-angled lower edge of the auxiliary chamber, and the top of the counterweight's plane makes hard contact with the right-angled edge of the auxiliary chamber, it will cause shaking or tilting of the material cylinder, leading to accidents such as the tungsten wire rope breaking and the counterweight being damaged.

[0004] To address this issue, those skilled in the art have designed a device to prevent the single crystal furnace weight from detaching and sticking. Utility Model Content

[0005] To address the aforementioned technical shortcomings, the purpose of this utility model is to provide a device for preventing the weight of a single crystal furnace from detaching or sticking.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: it includes a hammer and a hammer sleeve, a traction component is provided on the top of the hammer, the hammer sleeve is located on the top of the hammer, and the outer wall of the hammer sleeve has a slope.

[0007] Preferably, the traction assembly includes a snap-fit ​​assembly and a tungsten wire rope that passes through the top of the counterweight sheath.

[0008] Preferably, the snap-fit ​​assembly includes an opening at the top of the counterweight and a limiting ball connected to the tungsten wire rope. The limiting ball is located below the opening and snaps into the opening.

[0009] Preferably, the opening includes a vertical opening and a horizontal opening, and the diameter of the limiting ball is larger than the diameter of the vertical opening.

[0010] Preferably, the snap-fit ​​assembly further includes a snail pendant, the horizontal opening and the snail pendant forming a sliding connection, and the limiting ball is located between the snail pendant and the vertical opening.

[0011] Preferably, the top of the snail pendant has an arc groove, and the limiting ball is located inside the arc groove.

[0012] Preferably, the hammer sheath covers the top of the hammer and the snail pendant, and a side window with a width greater than the diameter of the tungsten wire rope is opened on one side of the hammer sheath. The top of the hammer sheath has a conical structure.

[0013] The beneficial effects of this utility model are as follows: The top of the hammer sleeve is tapered. When the hammer contacts the right-angle side of the auxiliary chamber, the upward traction force will not cause the hammer to tilt. Instead, it will shift laterally and continue to maintain a vertical state. This avoids accidents such as swaying or tilting of the material cylinder during the automatic lifting and lowering of the hammer, which could cause the tungsten wire rope to break and damage the hammer. Meanwhile, the snail pendant is fully wrapped by the weighted hammer sheath, preventing it from sliding out laterally. The snail pendant can also limit the top of the internal limiting ball, maintaining the stability of the limiting ball within the opening of the weighted hammer. When the tungsten wire rope does not pull the weighted hammer upward, the limiting ball remains in the middle. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments of this utility model will be briefly described below. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0015] Figure 1 This is a front view schematic diagram of this utility model.

[0016] Figure 2 This is a schematic diagram of the internal structure of the counterweight sleeve of this utility model.

[0017] Figure 3 This is a schematic diagram of the weight structure of this utility model.

[0018] Figure 4 This is a schematic diagram showing the contact between the conical counterweight sleeve and the right-angled side of the auxiliary chamber of this utility model.

[0019] In the picture: 1. Weight; 2. Snail pendant; 3. Opening; 4. Limiting ball; 5. Tungsten wire rope; 6. Weight sheath; 7. Side window. Detailed Implementation

[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0022] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0023] In the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating the connection relationship between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Example 1: This utility model provides a device for preventing the weight of a single crystal furnace from detaching and sticking, such as... Figure 1-4 As shown, it includes a hammer 1 and a hammer sleeve 6. A traction component is provided on the top of the hammer 1. The hammer sleeve 6 is located on the top of the hammer 1 and has a sloping outer wall. The traction component includes a snap-fit ​​component and a tungsten wire rope 5. The tungsten wire rope 5 passes through the top of the hammer sleeve 6. The traction component pulls the hammer 1 and the seed crystal at the bottom of the hammer 1 upwards, gradually pulling the entire single crystal silicon upwards. The tungsten wire rope 5 is used as the main pulling rope because the crystal furnace is a pinhole environment with a temperature of 1000℃, and tungsten has a high melting point of 3000℃, which is more suitable for such extreme high temperature environments.

[0025] The locking assembly includes an opening 3 at the top of the hammer 1 and a limiting ball 4 connected to the tungsten wire rope 5. The limiting ball 4 is located below the opening 3 and is locked to the opening 3. The limiting ball 4 is restricted by the opening 3, which prevents the limiting ball 4 from moving upward, allowing the tungsten wire rope 5 to continuously pull the entire hammer 1 upward.

[0026] The opening 3 includes a vertical opening 301 and a horizontal opening 302. The diameter of the limiting ball 4 is larger than the diameter of the vertical opening 301. The vertical opening 301 prevents the limiting ball 4 from passing through the vertical opening 301 by using its small diameter, while the tungsten wire rope 5 can pass through the vertical opening 301.

[0027] The snap-fit ​​assembly also includes a snail pendant 2. The horizontal opening 302 and the snail pendant 2 form a sliding connection, and the limiting ball 4 is located between the snail pendant 2 and the vertical opening 301. The snail pendant 2 and the vertical opening 301 jointly position the limiting ball 4. The vertical opening 301 positions the limiting ball 4 upward, while the snail pendant 2 positions the limiting ball 4 downward.

[0028] The snail pendant 2 has an arc groove at the top, and the limiting ball 4 is located in the arc groove. The shape of the arc groove fits the top of the limiting ball 4. When the snail pendant 2 is pulled out horizontally, the limiting ball 4 can also be pulled out horizontally at the same time, making it easy to disassemble.

[0029] The hammer sheath 6 encloses the top of the hammer 1 and the snail pendant 2. A side opening 7 with a width greater than the diameter of the tungsten wire rope 5 is opened on one side of the hammer sheath 6. The top of the hammer sheath 6 has a conical structure. The tungsten wire rope 5 can pass through the side opening 7. When the hammer sheath 6 is put on the top of the hammer 1, the snail pendant 2 can be locked laterally to prevent it from falling off laterally during the single crystal pulling process. At the same time, the top of the hammer sheath 6 adopts a conical structure, which can generate a lateral force when it comes into contact with the right angle edge of the top of the sub-chamber, and will not bend easily.

[0030] It should be stated that the above-described specific embodiments are merely preferred embodiments of this utility model and the technical principles employed. Those skilled in the art should understand that various modifications, equivalent substitutions, and variations can be made to this utility model. However, such variations, as long as they do not depart from the spirit of this utility model, should be within the protection scope of this utility model. Furthermore, some terminology used in this application specification and claims is not limiting, but merely for ease of description.

Claims

1. A device for preventing the weight from detaching and sticking in a single crystal furnace, characterized in that, It includes a hammer (1) and a hammer sleeve (6). The hammer (1) is equipped with a traction component on its top. The hammer sleeve (6) is located on the top of the hammer (1) and has a sloping outer wall.

2. The anti-detachment and anti-snagging device for the single crystal furnace counterweight according to claim 1, characterized in that, The traction assembly includes a snap-fit ​​assembly and a tungsten wire rope (5) that passes through the top of the counterweight sheath (6).

3. The anti-detachment and anti-snagging device for the single crystal furnace counterweight according to claim 2, characterized in that, The snap-fit ​​assembly includes an opening (3) on the top of the counterweight (1) and a limiting ball (4) connected to the tungsten wire rope (5). The limiting ball (4) is located below the opening (3) and the limiting ball (4) snaps into the opening (3).

4. The anti-detachment and anti-snagging device for the single crystal furnace counterweight according to claim 3, characterized in that, The opening (3) includes a vertical opening (301) and a horizontal opening (302), and the diameter of the limiting ball (4) is larger than the diameter of the vertical opening (301).

5. The anti-detachment and anti-snagging device for the single crystal furnace counterweight according to claim 4, characterized in that, The snap-fit ​​assembly also includes a snail pendant (2), with a horizontal opening (302) forming a sliding connection with the snail pendant (2), and a limiting ball (4) located between the snail pendant (2) and the vertical opening (301).

6. The anti-detachment and anti-snagging device for the single crystal furnace counterweight according to claim 5, characterized in that, The snail pendant (2) has an arc groove at the top, and the limiting ball (4) is located in the arc groove.

7. The anti-detachment and anti-snagging device for the single crystal furnace counterweight according to claim 5, characterized in that, The hammer sheath (6) covers the top of the hammer (1) and the snail pendant (2). A side window (7) with a width greater than the diameter of the tungsten wire rope (5) is opened on one side of the hammer sheath (6). The top of the hammer sheath (6) is a conical structure.

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