Single crystal silicon rod anti-falling safety hanger for single crystal furnace

Abstract

The utility model discloses a single crystal silicon rod anti-falling safety hanging rack for a single crystal furnace, which relates to the technical field of single crystal silicon rod production and comprises a central ring seat, a side bracket, a pressing plate guide insertion cylinder, a bottom supporting ring, a pressing rope, a winding mechanism and a hanging mechanism, the multiple side supports are fixedly connected to the center ring base, the pressing plate guiding insertion barrel is fixedly connected to the center of the upper end of the center ring base, the bottom supporting ring is movably arranged in the pressing plate guiding insertion barrel, one end of the pressing rope is connected with the bottom supporting ring, and the other end of the pressing rope is connected with the winding mechanism. The winding mechanism drives the bottom supporting ring to move up and down through the pressing rope. The hanging mechanism is fixedly connected with the side bracket, and the side bracket is hung and fixed below an auxiliary furnace chamber of the single crystal furnace through the hanging mechanism. And the rolling pulling force of the rolling mechanism can buffer the descending of the single crystal silicon rod and support the single crystal silicon rod, so that the single crystal silicon rod is prevented from falling down and being broken, and workers are prevented from being injured by crashing.

Description

Technical Field

[0001] The utility model relates to the technical field of single crystal silicon rod production, in particular to a single crystal silicon rod anti-falling safety hanging rack for a single crystal furnace. Background Art

[0002] In recent years, photovoltaic power generation, as a green energy and a major energy source for sustainable human development, has been increasingly valued and developed by countries around the world. As a basic material for photovoltaic power generation, single crystal silicon wafers have a wide market demand. Single crystal silicon wafers are usually obtained by slicing single crystal silicon rods. Therefore, the quality of single crystal silicon rods will eventually affect the quality of silicon wafers. In practical applications, single crystal silicon rods can usually be grown and pulled from silicon materials in a single crystal furnace.

[0003] After the single crystal furnace finishes pulling the crystal rod, it needs to take the rod out. When taking the rod out, the crystal pulling mechanism releases the crystal rod downward from the furnace body, and then the rod taking car takes the rod out. Because the crystal rod is long and heavy, the connection between the crystal rod and the seed crystal is thin and fragile. During the process of the crystal pulling mechanism releasing the crystal rod downward, or the crystal rod is subjected to external force, it will shake. In severe cases, the connection between the crystal rod and the seed crystal will break, causing the crystal rod to fall off from the furnace body, causing damage to the crystal rod, and even causing injuries to the staff under the furnace body. Therefore, it is urgent to develop a single crystal silicon rod anti-falling safety rack for single crystal furnaces to solve the above problems. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a single crystal silicon rod anti-falling safety hanger for a single crystal furnace in view of the deficiencies in the above-mentioned prior art. The safety hanger is hung under the furnace cover so that the safety hanger is directly opposite to the bottom of the auxiliary furnace chamber, serving as a protective frame to prevent the single crystal silicon rod in the auxiliary furnace chamber from accidentally falling off. If the single crystal silicon rod falls off, the safety hanger can be supported by the single crystal silicon rod to prevent the single crystal silicon rod from touching the ground or injuring people, thereby improving production safety and avoiding the single crystal silicon rod from touching the ground.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A safety hanger for preventing the shedding of single crystal silicon rods used in a single crystal furnace, which is arranged below the secondary furnace chamber of the single crystal furnace, and includes a central ring seat, side brackets, a pressing plate guiding cylinder, a bottom supporting ring, a pressing rope, a winding mechanism and a hanging mechanism; a plurality of the side brackets are fixedly connected to the central ring seat, the pressing plate guiding cylinder is fixedly connected to the center position at the upper end of the central ring seat, the bottom supporting ring is movably arranged in the pressing plate guiding cylinder, and one end of the pressing rope is connected to the bottom supporting ring, and the other end is connected to the winding mechanism, and the winding mechanism drives the bottom supporting ring to move up and down through the pressing rope; the hanging mechanism is fixedly connected to the side brackets, and the side brackets are fixedly hung below the secondary furnace chamber of the single crystal furnace through the hanging mechanism.

[0007] The utility model is provided with a central ring seat, side brackets, a pressing plate guiding cylinder, a bottom supporting ring, a pressing rope, a winding mechanism and a hanging mechanism. The side brackets are hung on the bottom of the secondary furnace chamber through the hanging mechanism. Through the arranged pressing plate guiding cylinder, the bottom supporting ring in the pressing plate guiding cylinder can support the bottom tip of the single crystal silicon rod. When the single crystal silicon rod breaks at the connection with the seed crystal, since the bottom of the single crystal silicon rod is tightly sleeved and fixed by the bottom supporting ring, the single crystal silicon rod can still continue to descend along the pressing plate guiding cylinder. The winding tension of the winding mechanism can buffer the descent of the single crystal silicon rod, support the single crystal silicon rod, prevent the single crystal silicon rod from falling and breaking, and avoid injuring the staff.

[0008] As a further preference of the utility model, the winding mechanism includes a winding box, a winding drum and a reset winding spring; the winding box is connected to the end of the side bracket, the winding drum is rotatably installed in the winding box, a pair of pressing ropes corresponding to the winding box pass through the winding box and are fixedly connected to the outer walls at both ends of the winding drum, a reset winding spring is fixedly installed at the center of the winding drum, and the inner and outer ends of the reset winding spring are respectively fixedly connected to the outer wall of the winding drum and the inner wall of the winding box.

[0009] The winding drum in the winding box can store energy through the reset winding spring when the pressing rope is unwound. As the single crystal silicon rod descends, a gradually increasing tension is provided for the pressing rope, balancing the gravity of the single crystal silicon rod, reducing the burden on the connection when the single crystal silicon rod descends, and reducing the possibility of the single crystal silicon rod breaking.

[0010] As a further preference of the utility model, it further includes a protective pressing plate, which is arranged above the bottom supporting ring. A pressing rope passing groove is formed on the outer wall of the protective pressing plate, and a rope passing block is fixedly connected to the middle of the pressing rope passing groove. The pressing rope is arranged along the direction of the pressing rope passing groove and is sequentially connected to the rope passing block and the bottom supporting ring.

[0011] As the single-crystal silicon rod descends, it drives the protective pressing plate into the pressing plate guiding insertion cylinder. The protective pressing plate clamps and fixes the single-crystal silicon rod, forming a protective effect for the outer wall of the single-crystal silicon rod. The contact surface is larger and the fixing effect is more stable, enabling the single-crystal silicon rod to be fixed stably during the descending process.

[0012] As a further preference of the present utility model, the hanging mechanism includes four guide rope clamping seats and a fixed collar. The fixed collar is sleeved on the central column of the secondary furnace chamber, and the four guide rope clamping seats are fixedly installed at the edge of the secondary furnace chamber corresponding to the positions of the four side brackets. A hanging rope fixing ear is fixedly connected to the outer upper end of the side bracket, and a fixed hanging rope is fixedly connected to the upper end of the hanging rope fixing ear. The upper end of the fixed hanging rope bypasses the guide rope clamping seat and is fixedly connected to the side wall of the fixed collar.

[0013] As a further preference of the present utility model, a U-shaped card slot is opened at the center of the outer side of the guide rope clamping seat. The fixed hanging rope passes through the U-shaped card slot, and clamping claws are fixedly connected to both the upper and lower sides inside the guide rope clamping seat. A pressing screw is threadedly connected to the center of the lower clamping claw, and a contact pressing plate is rotatably connected to the upper end of the pressing screw. Through the provided U-shaped card slot, it is convenient to limit and fix the fixed hanging rope. Through the provided clamping claws, the clamping claws are sleeved on the edge of the secondary furnace chamber, and then the pressing screw is rotated. The pressing screw can push the contact pressing plate to press the bottom edge of the secondary furnace chamber, facilitating the fixing and disassembly of the guide rope clamping seat and the edge of the secondary furnace chamber.

[0014] As a further preference of the present utility model, a conical guiding edge is provided along the upper edge of the central through hole of the pressing plate guiding insertion cylinder. It is convenient for the protective pressing plate to flip and fit the single-crystal silicon rod along the upper edge of the central through hole.

[0015] As a further preference of the present utility model, a receiving hole is provided at the center of the upper end of the bottom supporting ring, and the inner diameter of the receiving hole is smaller than the outer diameter of the bottom tip of the single-crystal silicon rod. Through the provided receiving hole, it is convenient for the bottom supporting ring to receive the single-crystal silicon rod.

[0016] As a further preference of the present utility model, there are four side brackets, and the side brackets are fixedly connected above the central ring seat in an annular array. Through the symmetric array arrangement of the side brackets and the winding drum, the single-crystal silicon rod is effectively stressed evenly.

[0017] The present utility model has the following beneficial effects:

[0018] 1. The utility model is provided with a central ring seat, side brackets, a pressing plate guiding insertion cylinder, a bottom supporting ring, a pressing rope, a winding mechanism and a mounting mechanism. The side brackets are mounted at the bottom of the auxiliary furnace chamber through the mounting mechanism. Through the provided pressing plate guiding insertion cylinder, the bottom supporting ring in the pressing plate guiding insertion cylinder can hold up the bottom tip of the single crystal rod. When the single crystal rod breaks at the connection with the seed crystal, since the bottom of the single crystal rod is tightly fixed by the bottom supporting ring, the single crystal rod can still continue to descend along the pressing plate guiding insertion cylinder. The winding tension of the winding mechanism can buffer the descent of the single crystal rod, support the single crystal rod, prevent the single crystal rod from falling and breaking, and avoid injuring the staff.

[0019] 2. The winding mechanism includes a winding box, a winding drum and a reset winding spring. The winding drum in the winding box can store energy through the reset winding spring when the pressing rope is unwound. As the single crystal rod descends, it provides an increasingly large tension for the pressing rope, balances the gravity of the single crystal rod, reduces the burden on the connection when the single crystal rod descends, and reduces the possibility of the single crystal rod breaking.

[0020] 3. Through the provided U-shaped card slot, it is convenient to limit and fix the fixed hanging rope. Through the provided card seat clamping jaws, the card seat clamping jaws are sleeved on the edge of the auxiliary furnace chamber, and then the pressing screw is rotated. The pressing screw can push the contact pressing plate to press the bottom edge of the auxiliary furnace chamber, which is convenient for the guide rope card seat to be fixed and disassembled with the edge of the auxiliary furnace chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a perspective view of the utility model;

[0022] Figure 2 is the utility model Figure 1 an enlarged view of part A in;

[0023] Figure 3 is a front sectional view of the utility model;

[0024] Figure 4 is the utility model Figure 3 an enlarged view of part B in;

[0025] Figure 5 is an internal structure diagram of the winding box of the utility model.

[0026] Reference numerals: 1, central ring seat; 2, side brackets; 3, pressing plate guiding insertion cylinder; 4, protective pressing plate; 5, pressing rope; 6, winding box; 7, winding drum; 8, bottom supporting ring; 9, reset winding spring; 10, pressing rope through groove; 11, hanging rope fixing ear; 12, fixed hanging rope; 13, guide rope card seat; 14, card seat clamping jaws; 15, pressing screw; 16, fixed collar. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific preferred embodiments.

[0028] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "left side", "right side", "upper part", "lower part", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. "First", "second", etc. do not represent the importance of components, so it cannot be understood as a limitation to the present invention. The specific dimensions adopted in this embodiment are only for illustrating the technical solution and do not limit the protection scope of the present invention.

[0029] Please refer to Figures 1 - 5 , the present invention provides a safety hanging rack for preventing the single crystal silicon rod from falling off in a single crystal furnace, including a central ring seat 1. Four side brackets 2 are fixedly connected to the upper edge of the central ring seat 1 in a circular array. A pressing plate guiding insertion cylinder 3 is fixedly connected to the center of the upper end of the central ring seat 1. A bottom supporting ring 8 is inserted on the pressing plate guiding insertion cylinder 3. Four pairs of pressing ropes 5 are fixedly connected to the upper end of the bottom supporting ring 8 corresponding to the four side brackets 2. A winding mechanism is fixedly connected to the outer end of the side bracket 2. The outer side of each pair of pressing ropes 5 is connected to the corresponding winding mechanism on one side. A plurality of protective pressing plates 4 are fixedly connected to each pair of pressing ropes 5 at equal intervals, and the plurality of protective pressing plates 4 are connected end to end. A hanging mechanism is fixedly connected to the upper end of each side bracket 2 near the outside, and the side bracket 2 is suspended and fixed below the auxiliary furnace chamber through the hanging mechanism.

[0030] In this embodiment, preferably, the winding mechanism includes a winding box 6. A winding drum 7 is rotatably installed at the center of the inner cavity of the winding box 6. A pair of pressing ropes 5 corresponding to the winding box 6 pass through the winding box 6 and are fixedly connected to the outer walls of both ends of the winding drum 7. A reset winding spring 9 is fixedly installed at the center of the winding drum 7, and the inner and outer ends of the reset winding spring 9 are respectively fixedly connected to the outer wall of the winding drum 7 and the inner wall of the winding box 6. By providing the winding box 6, the winding drum 7 in the winding box 6 can store energy through the reset winding spring 9 when the pressing rope 5 is unwound. As the single crystal silicon rod descends, it provides an increasingly large pulling force for the pressing rope 5, balances the gravity of the single crystal silicon rod, reduces the burden on the connection when the single crystal silicon rod descends, and reduces the possibility of the single crystal silicon rod breaking.

[0031] In this embodiment, preferably, the hanging mechanism includes four wire guiding seat clips 13 and a fixed collar 16. The fixed collar 16 is sleeved on the central column of the secondary furnace chamber, and the four wire guiding seat clips 13 are fixedly installed at the edges of the secondary furnace chamber corresponding to the positions of the four side brackets 2. A hanging rope fixing ear 11 is fixedly connected near the outer side of the upper end of the side bracket 2, and a fixed hanging rope 12 is fixedly connected to the upper end of the hanging rope fixing ear 11. The upper end of the fixed hanging rope 12 bypasses the wire guiding seat clip 13 and is fixedly connected to the side wall of the fixed collar 16. Through the arranged wire guiding seat clip 13 and fixed collar 16, the fixed collar 16 is pre - sleeved on the central column of the secondary furnace chamber. After the single - crystal silicon rod cools, the secondary furnace chamber is lifted, and the hanging rack composed of the central ring seat 1 and the side brackets 2 is inserted below the secondary furnace chamber, so that the bottom of the single - crystal silicon rod is aligned with the pressing plate guiding cylinder 3. The wire guiding seat clip 13 is fixed at the edge of the secondary furnace chamber corresponding to the position of the side bracket 2, and then the fixed hanging rope 12 outside the side bracket 2 is bypassed around the wire guiding seat clip 13 and fixed to the fixed collar 16 through the cooperation of a hook and a hanging ring, so that the hanging rack can be hung and fixed at the bottom of the secondary furnace chamber, with more firm fixation and convenient disassembly and assembly.

[0032] In this embodiment, preferably, a U - shaped card slot is opened at the outer center of the wire guiding seat clip 13, and clamping jaws 14 are fixedly connected to both the upper and lower sides inside the wire guiding seat clip 13. A pressing screw 15 is threadedly connected to the center of the lower clamping jaw 14, and a contact pressing disc is rotatably connected to the upper end of the pressing screw 15. Through the arranged U - shaped card slot, it is convenient to limit and fix the fixed hanging rope 12. Through the arranged clamping jaws 14, the clamping jaws 14 are sleeved on the edge of the secondary furnace chamber, and then the pressing screw 15 is rotated. The pressing screw 15 can push the contact pressing disc to press the bottom edge of the secondary furnace chamber, which is convenient for the fixation and disassembly of the wire guiding seat clip 13 and the edge of the secondary furnace chamber.

[0033] In this embodiment, preferably, a pressing rope through - groove 10 is opened on the outer side of the protective pressing plate 4 corresponding to the pressing rope 5, and a rope - passing block is fixedly connected to the middle of the pressing rope through - groove 10. The pressing rope 5 is fixedly installed through the rope - passing block. Through the arranged pressing rope through - groove 10, when the protective pressing plate 4 descends along the inner wall of the pressing plate guiding cylinder 3, the pressing rope 5 is stuck in the pressing rope through - groove 10, improving the guiding effect on the pressing rope 5 and facilitating the pressing rope 5 to press the protective pressing plate 4.

[0034] In this embodiment, preferably, a conical guiding edge is arranged along the upper edge of the central through - hole of the pressing plate guiding cylinder 3. Through the arranged conical guiding edge, it is convenient for the protective pressing plate 4 to flip and fit the single - crystal silicon rod along the upper edge of the central through - hole.

[0035] In this embodiment, preferably, a receiving hole is arranged at the center of the upper end of the bottom supporting ring 8, and the inner diameter of the receiving hole is smaller than the outer diameter of the bottom tip of the single - crystal silicon rod. Through the arranged receiving hole, it is convenient for the bottom supporting ring 8 to receive the single - crystal silicon rod.

[0036] Working principle and usage process of the utility model: When the device is in use, through the set central ring base 1 and side brackets 2, the side brackets 2 are mounted at the bottom of the auxiliary furnace chamber through the hanging mechanism. The bottom of the single crystal rod is received through the side brackets 2 corresponding to the bottom of the single crystal rod. Through the set pressing plate guiding cylinder 3, the bottom support ring 8 inside the pressing plate guiding cylinder 3 can hold up the bottom tip of the single crystal rod. As the single crystal rod descends, it drives the protective pressing plate 4 into the pressing plate guiding cylinder 3. The protective pressing plate 4 is pressed against the outer wall of the single crystal rod through the pressing rope 5 to clamp and fix the single crystal rod, forming a protective effect for the outer wall of the single crystal rod. The contact surface is larger and the fixing effect is more stable, enabling the single crystal rod to be fixed stably during the descending process. When the single crystal rod breaks at the connection with the seed crystal, since the bottom of the single crystal rod is tightly fixed by the bottom support ring 8, the single crystal rod can still continue to descend along the pressing plate guiding cylinder 3. The winding tension of the winding mechanism can buffer the descending of the single crystal rod, support the single crystal rod, prevent the single crystal rod from falling and breaking, and avoid injuring the staff.

[0037] The preferred embodiments of the present utility model have been described in detail above. However, the present utility model is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present utility model, various equivalent transformations can be made to the technical solutions of the present utility model, and these equivalent transformations all belong to the protection scope of the present utility model.

Claims

1. A safety hanger for preventing the single crystal silicon rod from falling off in a single crystal furnace, which is arranged below the secondary furnace chamber of the single crystal furnace, and is characterized in that: It includes a central ring base (1), side brackets (2), a pressure plate guide cylinder (3), a bottom support ring (8), a compression rope (5), a winding mechanism and a mounting mechanism; a plurality of the side brackets (2) are fixedly connected to the central ring base (1), the pressure plate guide cylinder (3) is fixedly connected to the upper center position of the central ring base (1), the bottom support ring (8) is movably arranged in the pressure plate guide cylinder (3), and one end of the compression rope (5) is connected to the bottom support ring (8), and the other end is connected to the winding mechanism. The winding mechanism drives the bottom support ring (8) to move up and down through the compression rope (5); the mounting mechanism is fixedly connected to the side brackets (2), and the side brackets (2) are suspended and fixed below the secondary furnace chamber of the single crystal furnace through the mounting mechanism.

2. The single-crystalline silicon rod anti-dropping safety hanger for a single-crystal furnace according to claim 1, characterized in that: The winding mechanism includes a winding box (6), a winding drum (7) and a return winding spring (9); the winding box (6) is connected to the end of the side bracket (2), the winding drum (7) is rotatably installed in the winding box (6), and a pair of compression ropes (5) corresponding to the winding box (6) pass through the winding box (6) and are fixedly connected to the outer walls of both ends of the winding drum (7). A return winding spring (9) is fixedly installed at the center of the winding drum (7), and the inner and outer ends of the return winding spring (9) are respectively fixedly connected to the outer wall of the winding drum (7) and the inner wall of the winding box (6).

3. The safety hanger for preventing the single crystal silicon rod from falling off in a single crystal furnace according to claim 1, characterized in that: It further includes a protective pressure plate (4), the protective pressure plate (4) is arranged above the bottom support ring (8), a compression rope passing groove (10) is formed on the outer wall of the protective pressure plate (4), and a rope passing block is fixedly connected to the middle of the compression rope passing groove (10). The compression rope (5) is arranged along the direction of the compression rope passing groove (10) and is sequentially connected to the rope passing block and the bottom support ring (8).

4. A safety hanging rack for preventing single crystal silicon rods from falling off in a single crystal furnace according to claim 1, characterized in that: The mounting mechanism includes four guide rope clamping seats (13) and a fixed collar (16). The fixed collar (16) is sleeved on the central column of the secondary furnace chamber, and the four guide rope clamping seats (13) are fixedly installed at the edge of the secondary furnace chamber corresponding to the positions of the four side brackets (2). A hanging rope fixing ear (11) is fixedly connected to the upper outer side of the side bracket (2), and a fixed hanging rope (12) is fixedly connected to the upper end of the hanging rope fixing ear (11). The upper end of the fixed hanging rope (12) bypasses the guide rope clamping seat (13) and is fixedly connected to the side wall of the fixed collar (16).

5. The safety hanging rack for preventing the single-crystal silicon rod from falling off in a single-crystal furnace according to claim 4, wherein: A U-shaped card slot is formed at the outer center of the guide rope clamping seat (13). The fixed hanging rope (12) passes through the U-shaped card slot, and clamping claws (14) are fixedly connected to both the upper and lower sides inside the guide rope clamping seat (13). A compression screw rod (15) is threadedly connected to the center of the lower clamping claw (14), and a contact pressure plate is rotatably connected to the upper end of the compression screw rod (15).

6. The single-crystal silicon rod anti-dropping safety hanger for a single-crystal furnace according to claim 1, wherein: A conical guide edge is arranged along the upper edge of the central through hole of the pressure plate guide cylinder (3).

7. The safety hanging rack for preventing the single crystal silicon rod from falling off in a single crystal furnace according to claim 1, wherein: A receiving hole is arranged at the upper center of the bottom support ring (8), and the inner diameter of the receiving hole is smaller than the outer diameter of the bottom tip of the single crystal rod.

8. The safety hanging rack for preventing the single crystal silicon rod from falling off in a single crystal furnace according to claim 1, characterized in that: There are four side brackets (2), and the side brackets (2) are fixedly connected to the upper part of the central ring base (1) in a circular array.

Images