Yarn rolling wheel mechanism of single crystal furnace

Abstract

The utility model discloses a filament rolling wheel mechanism of a single crystal furnace, which belongs to the technical field of rolling devices and comprises a shell, a filament rolling wheel body and a tungsten filament rope, the inner side of the shell is rotatably connected with a rotating shaft, a motor is arranged outside the shell, the filament rolling wheel body is arranged outside a spline housing, and the tungsten filament rope is arranged on the spline housing. A first roller is rotationally connected to the inner side of the thread rolling wheel body, a second roller is rotationally connected to the inner side of the supporting frame, the first roller, the second roller and the supporting frame are matched, the stability of the second roller is kept through the supporting frame, and blocking is formed through contact between the second roller and the interior of the thread rolling wheel body. When the wire rolling wheel body moves, friction between the wire rolling wheel body and the second rolling wheel is reduced, when the wire rolling wheel body moves, the first rolling wheel makes rolling contact with the spline housing, friction to the wire rolling wheel body is reduced, matching between the wire rolling wheel body and the spline housing is more precise, and the stability of the wire rolling wheel body in the tungsten wire rope rolling process is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of winding devices, in particular to a single crystal furnace winding wheel mechanism. Background Art

[0002] A single crystal furnace is an industrial furnace used to produce single crystal silicon materials. It is widely used in the semiconductor and photovoltaic industries. The single crystal furnace melts the crystalline silicon raw materials at high temperature. Under low vacuum and argon protection, a seed crystal is inserted into the polycrystalline silicon melt. A supercooled state is formed around the seed crystal and it grows regularly to form a single crystal rod. The single crystal silicon rod is then cut according to production needs.

[0003] The single crystal furnace wire winding wheel mechanism is a key component in the single crystal silicon growth process. It is responsible for controlling the pulling speed and direction of the silicon crystal to ensure the quality and shape of the crystal. However, the existing wire winding wheels are mostly driven by a spline shaft when rotating and moving. However, the wire winding wheel will produce friction with the spline shaft when moving, which may cause the spline shaft and the wire winding wheel to wear too quickly, resulting in a gap between the spline shaft and the wire winding wheel, causing a setback when the tungsten wire rope is retracted, and the single crystal silicon rod cannot be stably pulled. In order to solve this technical problem, the utility model proposes a single crystal furnace wire winding wheel mechanism. Utility Model Content

[0004] The main purpose of the utility model is to provide a single crystal furnace wire winding wheel mechanism, which can effectively solve the problems mentioned in the background technology.

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

[0006] A single crystal furnace wire winding wheel mechanism comprises a shell, a wire winding wheel body and a tungsten wire rope, wherein the inner side of the shell is rotatably connected to a rotating shaft, the outer surface of the rotating shaft is connected to a spline sleeve, a motor is arranged on the outside of the shell, the wire winding wheel body is arranged on the outside of the spline sleeve, the inner side of the wire winding wheel body is rotatably connected to a first roller, the outer surface of the first roller contacts the inner wall of the spline sleeve, the inner top wall of the shell is connected to a support frame, the inner side of the support frame is rotatably connected to a second roller, the outer surface of the second roller contacts the inner wall of the wire winding wheel body, and a guide wheel is arranged on the outside of the shell.

[0007] Preferably, the motor is mounted on the outer surface of the housing, and the output shaft of the motor is connected to one end of the rotating shaft.

[0008] Preferably, the outer surface of the shell is connected to a support seat, the inner side of the support seat is connected to a first support shaft, and the outer surface of the first support shaft is rotatably connected to the inner wall of the guide wheel.

[0009] Preferably, the inner wall of the support seat is slidably connected to a sliding seat, the outer surface of the sliding seat is connected to a spring, and the other end of the spring is connected to the inner wall of the support seat.

[0010] Preferably, a second support shaft is connected to the inner side of the slide seat, and a pressure wheel is rotatably connected to the outer surface of the second support shaft. The inner wall of the pressure wheel contacts the outer surface of the guide wheel, and there is a space between the pressure wheel and the guide wheel for accommodating the passage of the tungsten wire rope.

[0011] Preferably, the tungsten wire rope is arranged inside the winding wheel body, and the outer surface of the tungsten wire rope is in contact with the inner walls of the guide wheel and the pressure wheel.

[0012] Preferably, both ends of the spline sleeve are connected with positioning plates, and the diameter of the positioning plates is larger than the diameter of the spline sleeve.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model adopts the cooperation between the first roller, the second roller and the support frame, the stability of the second roller is maintained by the support frame, the second roller is in contact with the inside of the winding wheel body to form a barrier, and the winding wheel body is prompted to move its position when it rotates. At the same time, the second roller rotates to reduce the friction between the winding wheel body and the second roller. When the winding wheel body moves, the first roller and the spline sleeve are in rolling contact to reduce the friction between the winding wheel body and the spline sleeve. The rolling function of the first roller and the second roller reduces the friction on the winding wheel body, makes the cooperation between the winding wheel body and the spline sleeve more precise, and improves the stability of the winding wheel body when winding the tungsten wire rope.

[0015] In the utility model, through the cooperation between the guide wheel, the pressure wheel and the slide seat, and the elastic support of the slide seat by the spring, the slide seat can always have a driving force on the pressure wheel, and the pressure wheel wraps the tungsten wire rope above the guide wheel, so that the tungsten wire rope cannot be separated from the contact with the guide wheel, thereby improving the stability of the tungsten wire rope. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the single crystal furnace wire winding wheel mechanism of the utility model;

[0017] Figure 2 It is a schematic diagram of the internal structure of the shell in the single crystal furnace wire winding wheel mechanism of the utility model;

[0018] Figure 3 It is a schematic diagram of the overall three-dimensional structure of the winding wheel body in the winding wheel mechanism of the single crystal furnace of the utility model;

[0019] Figure 4 It is a schematic diagram of the internal structure of the winding wheel body in the winding wheel mechanism of the single crystal furnace of the utility model;

[0020] Figure 5 It is a schematic diagram of the overall three-dimensional structure of the support frame in the single crystal furnace wire winding wheel mechanism of the utility model.

[0021] In the figure: 1. Shell; 2. Wire winding wheel body; 3. Tungsten wire rope; 4. Rotating shaft; 5. Spline sleeve; 6. Motor; 7. First roller; 8. Support frame; 9. Second roller; 10. Guide wheel; 11. Support seat; 12. First support shaft; 13. Sliding seat; 14. Spring; 15. Second support shaft; 16. Pressure wheel; 17. Positioning plate. DETAILED DESCRIPTION

[0022] 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.

[0023] like Figure 1-5 As shown, the single crystal furnace wire winding wheel mechanism includes a shell 1, a wire winding wheel body 2 and a tungsten wire rope 3. The inner side of the shell 1 is rotatably connected to a rotating shaft 4, and the outer surface of the rotating shaft 4 is connected to a spline sleeve 5. A motor 6 is arranged outside the shell 1, and the motor 6 is installed on the outer surface of the shell 1. The output shaft of the motor 6 is connected to one end of the rotating shaft 4. The motor 6 is used as the motive force to provide power for the rotation of the rotating shaft 4.

[0024] The winding wheel body 2 is arranged on the outside of the spline sleeve 5, and the inner side of the winding wheel body 2 is rotatably connected to the first roller 7, and the outer surface of the first roller 7 contacts the inner wall of the spline sleeve 5. The inner top wall of the shell 1 is connected to a support frame 8, and the inner side of the support frame 8 is rotatably connected to the second roller 9, and the outer surface of the second roller 9 contacts the inner wall of the winding wheel body 2. The second roller 9 contacts the groove inside the winding wheel body 2, and the second roller 9 forms a blockage for the winding wheel body 2. The blocking of the second roller 9 makes the winding wheel body 2 move while rotating, and the first roller 7 is wrapped by the groove inside the spline sleeve 5. When the winding wheel body 2 moves, the first roller 7 and the spline sleeve 5 rotate, and the winding wheel body 2 also rotates.

[0025] A guide wheel 10 is arranged on the outside of the shell 1, and a support seat 11 is connected to the outer surface of the shell 1. A first support shaft 12 is connected to the inner side of the support seat 11. The outer surface of the first support shaft 12 is rotatably connected to the inner wall of the guide wheel 10. The guide wheel 10 provides rolling support for the tungsten wire rope 3, thereby reducing the friction of the tungsten wire rope 3 and improving the service life of the tungsten wire rope 3.

[0026] The inner wall of the support seat 11 is slidably connected with a slide seat 13, and the outer surface of the slide seat 13 is connected with a spring 14. The other end of the spring 14 is connected to the inner wall of the support seat 11. The second support shaft 15 is supported by the slide seat 13 to ensure stability of the second support shaft 15. The slide seat 13 can be moved by the spring 14 to facilitate the tungsten wire rope 3 to pass through the guide wheel 10 and the pressure wheel 16. The spring 14 elastically supports the slide seat 13 to ensure that the pressure wheel 16 always keeps in contact with the tungsten wire rope 3.

[0027] A second support shaft 15 is connected to the inner side of the slide 13, and a pressure wheel 16 is rotatably connected to the outer surface of the second support shaft 15. The inner wall of the pressure wheel 16 contacts the outer surface of the guide wheel 10, and there is a space between the pressure wheel 16 and the guide wheel 10 for accommodating the passage of the tungsten wire rope 3. The stability of the pressure wheel 16 is maintained by the second support shaft 15, and the tungsten wire rope 3 is wrapped above the guide wheel 10 by the pressure wheel 16 to prevent the tungsten wire rope 3 from being out of contact with the guide wheel 10, thereby maintaining the stability of the tungsten wire rope 3.

[0028] The tungsten wire rope 3 is arranged inside the winding wheel body 2, and the outer surface of the tungsten wire rope 3 contacts the inner walls of the guide wheel 10 and the pressure wheel 16. The tungsten wire rope 3 is used to pull and guide the single crystal silicon rod to maintain the stability of the single crystal silicon rod.

[0029] Both ends of the spline sleeve 5 are connected to positioning plates 17, and the diameter of the positioning plates 17 is larger than the diameter of the spline sleeve 5. The maximum moving distance of the winding wheel body 2 is set by the positioning plates 17, and the winding wheel body 2 is blocked by the positioning plates 17 to prevent the winding wheel body 2 from moving too far and failing to reel in the tungsten wire rope 3, causing the tungsten wire rope 3 to escape from the groove on the winding wheel body 2.

[0030] It should be noted that in actual use of the device, when the tungsten wire rope 3 needs to pull the single crystal silicon rod, the motor 6 is first started to rotate. The motor 6 drives the spline sleeve 5 to rotate while rotating. The spline sleeve 5 drives the winding wheel body 2 to rotate through the first roller 7. While the winding wheel body 2 rotates, it is blocked by the second roller 9, so that the winding wheel body 2 rotates and moves. The tungsten wire rope 3 is wound while the winding wheel body 2 rotates. The first roller 7 and the second roller 9 are pushed to rotate while the winding wheel body 2 rotates and moves. When the winding wheel body 2 winds the tungsten wire rope 3, the tungsten wire rope 3 drives the guide wheel 10 and the pressure wheel 16 to rotate. The second roller 9 supports the winding wheel body 2, so that the tungsten wire rope 3 is always in the same position when it is wound, and cannot move left or right.

[0031] 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 single crystal furnace wire winding wheel mechanism, comprising a housing (1), a wire winding wheel body (2) and a tungsten wire rope (3), characterized in that: The inner side of the housing (1) is rotatably connected to a rotating shaft (4), the outer surface of the rotating shaft (4) is connected to a spline sleeve (5), the outer side of the housing (1) is provided with a motor (6), the winding wheel body (2) is provided outside the spline sleeve (5), the inner side of the winding wheel body (2) is rotatably connected to a first roller (7), the outer surface of the first roller (7) is in contact with the inner wall of the spline sleeve (5), the inner top wall of the housing (1) is connected to a support frame (8), the inner side of the support frame (8) is rotatably connected to a second roller (9), the outer surface of the second roller (9) is in contact with the inner wall of the winding wheel body (2), and the outer side of the housing (1) is provided with a guide wheel (10).

2. The single crystal furnace wire winding wheel mechanism according to claim 1, characterized in that: The motor (6) is mounted on the outer surface of the housing (1), and the output shaft of the motor (6) is connected to one end of the rotating shaft (4).

3. The single crystal furnace wire winding wheel mechanism according to claim 2, characterized in that: The outer surface of the shell (1) is connected to a support seat (11), the inner side of the support seat (11) is connected to a first support shaft (12), and the outer surface of the first support shaft (12) is rotatably connected to the inner wall of the guide wheel (10).

4. The single crystal furnace wire winding wheel mechanism according to claim 3, characterized in that: The inner wall of the support seat (11) is slidably connected to a sliding seat (13), the outer surface of the sliding seat (13) is connected to a spring (14), and the other end of the spring (14) is connected to the inner wall of the support seat (11).

5. The single crystal furnace wire winding wheel mechanism according to claim 4, characterized in that: The inner side of the slide seat (13) is connected to a second support shaft (15), the outer surface of the second support shaft (15) is rotatably connected to a pressure wheel (16), the inner wall of the pressure wheel (16) is in contact with the outer surface of the guide wheel (10), and there is a space between the pressure wheel (16) and the guide wheel (10) for accommodating the passage of the tungsten wire rope (3).

6. The single crystal furnace wire winding wheel mechanism according to claim 5, characterized in that: The tungsten wire rope (3) is arranged inside the winding wheel body (2), and the outer surface of the tungsten wire rope (3) is in contact with the inner walls of the guide wheel (10) and the pressure wheel (16).

7. The single crystal furnace wire winding wheel mechanism according to claim 6, characterized in that: Both ends of the spline sleeve (5) are connected to positioning plates (17), and the diameter of the positioning plates (17) is greater than the diameter of the spline sleeve (5).

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