Bearing block structure for single crystal growth furnace

Abstract

The utility model discloses single crystal growth furnace bearing seat structure, including base, the top of base is fixed with lower bearing seat, the outer surface of lower bearing seat both sides is all equipped with the reinforcing rib, and the bottom of reinforcing rib is fixedly connected with the top of base, the top of lower bearing seat is installed with upper bearing seat, and the inner wall on upper bearing seat is equipped with upper semicircle seat, and the inner wall on lower bearing seat is equipped with lower semicircle seat, and the inner wall on upper semicircle seat and lower semicircle seat is installed with bearing outer ring, and the inner side of bearing outer ring is equipped with bearing inner race, and the outer wall on bearing inner race both sides is all equipped with annular limit seat, and the both sides in the inside of upper semicircle seat and lower semicircle seat are all equipped with the screw hole of equal interval. The utility model not only improves the protection performance when bearing seat structure uses, but also guarantees the transmission efficiency of bearing inner race inner side rotating shaft part when bearing seat structure uses, and reaches the purpose of easy to dismantle maintenance bearing seat structure.

Description

Technical Field

[0001] This utility model relates to the field of single crystal growth furnace technology, specifically to the structure of a bearing seat for a single crystal growth furnace. Background Technology

[0002] Single crystal growth furnaces are the core equipment for preparing single crystal materials and have wide applications in semiconductors, solar photovoltaics and other fields. During the single crystal growth process, components such as seed crystal rods and crucibles inside the furnace need to be rotated precisely to achieve uniform growth of single crystals. These rotating components are usually mounted on bearing seats through bearings. The performance of the bearing seats directly affects the operating accuracy and stability of the rotating components. Therefore, developing a bearing seat structure for single crystal growth furnaces is particularly important.

[0003] Referring to the sapphire single crystal growth furnace bearing housing structure with announcement number CN204253638U, it includes: a support base with a through mounting hole; a sleeve, one end of which passes through the mounting hole, with a sliding bearing installed at each end of the sleeve's inner hole; and a rotary locking device located inside the support base. A lifting threaded hole is provided on the side of the support base. This sapphire single crystal growth furnace bearing housing structure mounts two bearings into the same support base, improving the structural support rigidity. The rotating shaft extends outside the support base for mounting other components. The support base body is equipped with a locking device, resulting in a compact structure and convenient use. End-face mounting and outer circle positioning facilitate assembly and reliable positioning. As can be seen from the above, although this bearing housing structure can be well applied, it is generally inconvenient to perform dustproofing operations on the installed bearing components, resulting in only average protective performance that fails to meet expectations and requires further improvement. Utility Model Content

[0004] The purpose of this utility model is to provide a bearing seat structure for a single crystal growth furnace, in order to solve the problem that although the bearing seat structure proposed in the background art can be well applied, it is usually not convenient to carry out dust protection work on the installed bearing components, so the protective performance of the bearing seat structure is generally poor and it is difficult to achieve the intended purpose.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a bearing seat structure for a single crystal growth furnace, comprising a base, a lower bearing seat fixed to the top of the base, reinforcing ribs on both outer surfaces of the lower bearing seat, the bottom ends of the reinforcing ribs being fixedly connected to the top of the base, an upper bearing seat mounted on the top of the lower bearing seat, an upper semi-circular seat on the inner wall of the upper bearing seat, and a lower semi-circular seat on the inner wall of the lower bearing seat, the top end of the lower semi-circular seat contacting the bottom end of the upper semi-circular seat, and mounting... The bearing has an outer ring, and an inner ring is provided inside the outer ring. The outer wall of the inner ring is provided with a plurality of balls, and the outer wall of the balls contacts the inner wall of the outer ring. Both sides of the outer surface of the inner ring are provided with annular limiting seats. Both sides of the upper and lower semicircular seats are provided with equally spaced threaded holes. Dustproof plates are installed on both sides of the outer surface between the upper and lower semicircular seats. A plurality of threaded pins are installed at the edge of the surface of the dustproof plate, and one end of the threaded pin passes through the dustproof plate and is threadedly connected to the threaded hole.

[0006] Preferably, positioning posts are provided at the corner positions inside the base, and positioning holes are provided inside the positioning posts. The bottom end of the positioning holes extends to the outside of the base. The positioning posts and positioning holes are provided so that the bearing housing structure can be bolted and placed on the mounting platform as a whole.

[0007] Preferably, both sides of the upper bearing housing are provided with cylindrical seats, and a locking bolt is installed at the top of the cylindrical seat. The bottom end of the locking bolt passes through the cylindrical seat and is threadedly connected to the top of the lower bearing housing. The locking bolt is used to bolt the upper bearing housing to the top of the lower bearing housing.

[0008] Preferably, a top seat is installed at the center of the top of the upper bearing seat, and locating pins are installed on both sides inside the top seat. The bottom end of the locating pin passes through the top seat and is threadedly connected to the top of the upper bearing seat. The locating pins are used to install the top seat on the top of the upper bearing seat.

[0009] Preferably, a lubrication tube is provided at the center of the top seat, and the bottom end of the lubrication tube extends to the inner side of the upper semicircular seat. The lubrication tube is provided so that lubricating fluid can be injected to lubricate the balls.

[0010] Preferably, a lubrication hole is provided at the top of the bearing outer ring at the location of the lubrication tube, and the bottom end of the lubrication hole extends to the inner side of the bearing outer ring. The lubrication hole is provided so that lubricant can be injected into the inner side of the bearing outer ring to lubricate the balls.

[0011] Compared with the prior art, the beneficial effects of this utility model are: the bearing seat structure of the single crystal growth furnace not only improves the protective performance of the bearing seat structure during use, but also ensures the transmission efficiency of the inner ring inner shaft component of the bearing during use, and achieves the purpose of easy disassembly and maintenance of the bearing seat structure.

[0012] (1) By turning the threaded pin, one end of the threaded pin passes through the dustproof plate and is screwed into the threaded hole, so that the two dustproof plates are installed on the outer surfaces of both sides between the upper and lower semicircular seats. The dustproof plates can protect the balls, thereby reducing the phenomenon of external dust flowing into the inner side of the bearing outer ring and causing corrosion to the balls, thus improving the protective performance of the bearing housing structure during use.

[0013] (2) By turning the positioning pin, the lower end of the positioning pin passes through the top seat and is screwed into the top of the upper bearing seat. Then, lubricating fluid is injected through the lubrication pipe, so that the lubricating fluid flows through the lubrication pipe and through the lubrication hole to the inner side of the outer ring of the bearing, so as to achieve the purpose of lubricating the balls, thereby effectively reducing the wear of the balls, thus ensuring the transmission efficiency of the inner ring of the bearing shaft component when the bearing seat structure is used.

[0014] (3) By tightening the locking bolt, the lower end of the locking bolt is screwed out to the outside of the lower bearing housing. Then, the upper bearing housing is pulled upward to remove the upper bearing housing from the top of the lower bearing housing, thereby achieving the purpose of easy disassembly and maintenance of the bearing housing structure. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the left-side structure of this utility model;

[0016] Figure 2 This is a frontal cross-sectional view of the present invention.

[0017] Figure 3 This is a schematic diagram of the right-side structure of this utility model;

[0018] Figure 4 This is a bottom view schematic diagram of the ball bearing structure of this utility model.

[0019] In the diagram: 1. Base; 2. Lower bearing seat; 3. Upper bearing seat; 4. Columnar seat; 5. Locking bolt; 6. Positioning pin; 7. Positioning hole; 8. Reinforcing rib; 9. Dustproof plate; 10. Threaded pin; 11. Annular limit seat; 12. Top seat; 13. Positioning pin; 14. Lubrication pipe; 15. Lubrication hole; 16. Bearing outer ring; 17. Bearing inner ring; 18. Ball; 19. Upper semi-circular seat; 20. Lower semi-circular seat; 21. Threaded hole. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0021] Please see Figure 1-4 An embodiment of this utility model is provided: a bearing seat structure for a single crystal growth furnace, including a base 1, with positioning posts 6 at the corner positions inside the base 1, and positioning holes 7 inside the positioning posts 6, the bottom end of which extends to the outside of the base 1.

[0022] In use, the positioning pins 6 and positioning holes 7 are used to bolt the entire bearing housing structure onto the mounting platform.

[0023] The bottom of the base 1 is fixed with a lower bearing seat 2. The outer surfaces of both sides of the lower bearing seat 2 are provided with reinforcing ribs 8. The bottom end of the reinforcing ribs 8 is fixedly connected to the top of the base 1. The top of the lower bearing seat 2 is installed with an upper bearing seat 3. The two sides inside the upper bearing seat 3 are provided with column seats 4. The top of the column seats 4 is installed with locking bolts 5. The bottom end of the locking bolts 5 passes through the column seats 4 and is threadedly connected to the top of the lower bearing seat 2.

[0024] In use, the upper bearing housing 3 is bolted to the top of the lower bearing housing 2 by means of the locking bolt 5;

[0025] A top seat 12 is installed at the center of the top of the upper bearing housing 3. Locating pins 13 are installed on both sides inside the top seat 12. The bottom end of the locating pin 13 passes through the top seat 12 and is threadedly connected to the top of the upper bearing housing 3.

[0026] In use, the positioning pin 13 is used to install the top seat 12 on the top of the upper bearing seat 3;

[0027] A lubrication tube 14 is provided at the center of the top seat 12, and the bottom end of the lubrication tube 14 extends to the inside of the upper semicircular seat 19.

[0028] In use, the lubrication pipe 14 is provided so that lubricating fluid can be injected to lubricate the ball 18;

[0029] A lubrication hole 15 is provided at the top of the outer ring 16 of the bearing at the location of the lubrication tube 14, and the bottom end of the lubrication hole 15 extends to the inner side of the outer ring 16 of the bearing.

[0030] In use, the lubrication hole 15 is provided so that lubricant can be injected into the inner side of the outer ring 16 of the bearing to lubricate the balls 18.

[0031] The inner wall of the upper bearing housing 3 is provided with an upper semi-circular seat 19, and the inner wall of the lower bearing housing 2 is provided with a lower semi-circular seat 20. The top end of the lower semi-circular seat 20 touches the bottom end of the upper semi-circular seat 19. The inner walls of the upper semi-circular seat 19 and the lower semi-circular seat 20 are equipped with bearing outer rings 16. The inner side of the bearing outer ring 16 is provided with a bearing inner ring 17. The outer wall of the bearing inner ring 17 is provided with a plurality of balls 18. The outer wall of the balls 18 touches the inner wall of the bearing outer ring 16.

[0032] The outer surfaces of both sides of the inner ring 17 of the bearing are provided with annular limiting seats 11. The upper semicircular seat 19 and the lower semicircular seat 20 are provided with equally spaced threaded holes 21 on both sides. Dustproof plates 9 are installed on both outer surfaces between the upper semicircular seat 19 and the lower semicircular seat 20. Several threaded pins 10 are installed at the edge of the surface of the dustproof plate 9. One end of the threaded pin 10 passes through the dustproof plate 9 and is threadedly connected to the threaded hole 21.

[0033] In this embodiment, the bearing housing structure is first bolted and positioned by using the positioning pin 6 and positioning hole 7, with the bolts passing through the positioning hole 7 and screwed into the mounting platform. Then, by turning the threaded pin 10, one end of the threaded pin 10 passes through the dustproof plate 9 and is screwed into the threaded hole 21, so that the two dustproof plates 9 are installed on the outer surfaces of both sides between the upper semicircular seat 19 and the lower semicircular seat 20. The dustproof plates 9 can then shield and protect the balls 18, reducing the inflow of external dust into the inner side of the bearing outer ring 16 and causing corrosion to the balls 18, thus effectively improving the bearing housing structure. To improve the protective performance, the lower end of the positioning pin 13 is screwed through the top seat 12 and into the top of the upper bearing housing 3 by turning the positioning pin 13. Then, lubricating fluid is injected through the lubrication pipe 14, so that the lubricating fluid flows into the inner side of the outer ring 16 of the bearing through the lubrication pipe 14 and the lubrication hole 15, thus lubricating the balls 18. Finally, the lower end of the locking bolt 5 is screwed out to the outside of the lower bearing housing 2 by turning the locking bolt 5. Then, the upper bearing housing 3 is pulled upward to remove the upper bearing housing 3 from the top of the lower bearing housing 2, so as to facilitate the disassembly and maintenance of the bearing housing structure, thereby completing the use of the bearing housing structure.

Claims

1. A bearing housing structure for a single crystal growth furnace, characterized in that: The system includes a base (1), a lower bearing seat (2) fixed to the top of the base (1), reinforcing ribs (8) on both sides of the outer surface of the lower bearing seat (2), the bottom of the reinforcing ribs (8) being fixedly connected to the top of the base (1), an upper bearing seat (3) installed at the top of the lower bearing seat (2), an upper semicircular seat (19) on the inner wall of the upper bearing seat (3), a lower semicircular seat (20) on the inner wall of the lower bearing seat (2), the top of the lower semicircular seat (20) touching the bottom of the upper semicircular seat (19), a bearing outer ring (16) installed on the inner walls of the upper semicircular seat (19) and the bearing outer ring (16) having a shaft on its inner side. The bearing inner ring (17) has several balls (18) on its outer wall. The outer wall of the balls (18) contacts the inner wall of the bearing outer ring (16). The outer surfaces of both sides of the bearing inner ring (17) are provided with annular limiting seats (11). The upper semicircular seat (19) and the lower semicircular seat (20) are provided with equally spaced threaded holes (21) on both sides. The outer surfaces of both sides between the upper semicircular seat (19) and the lower semicircular seat (20) are provided with dustproof plates (9). Several threaded pins (10) are installed at the edge of the surface of the dustproof plate (9). One end of the threaded pin (10) passes through the dustproof plate (9) and is threadedly connected to the threaded hole (21).

2. The bearing seat structure of the single crystal growth furnace according to claim 1, characterized in that: Positioning posts (6) are provided at the corner positions inside the base (1). Positioning posts (6) have positioning holes (7) inside. The bottom end of the positioning holes (7) extends to the outside of the base (1).

3. The bearing housing structure of the single crystal growth furnace according to claim 1, characterized in that: Both sides of the upper bearing seat (3) are provided with column seats (4). The top of the column seat (4) is equipped with a locking bolt (5). The bottom end of the locking bolt (5) passes through the column seat (4) and is threadedly connected to the top of the lower bearing seat (2).

4. The bearing seat structure of the single crystal growth furnace according to claim 1, characterized in that: A top seat (12) is installed at the center of the top of the upper bearing seat (3). Locating pins (13) are installed on both sides inside the top seat (12). The bottom end of the locating pin (13) passes through the top seat (12) and is threadedly connected to the top of the upper bearing seat (3).

5. The bearing seat structure of the single crystal growth furnace according to claim 4, characterized in that: A lubrication tube (14) is provided at the center of the top seat (12), and the bottom end of the lubrication tube (14) extends through to the inside of the upper semicircular seat (19).

6. The bearing seat structure of the single crystal growth furnace according to claim 5, characterized in that: The bearing outer ring (16) at the location of the lubrication tube (14) has a lubrication hole (15) at the top end, and the bottom end of the lubrication hole (15) extends to the inner side of the bearing outer ring (16).

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