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CN-224227285-U - Connecting sleeve, lifting assembly and single crystal furnace

CN224227285UCN 224227285 UCN224227285 UCN 224227285UCN-224227285-U

Abstract

The utility model belongs to the technical field of monocrystalline silicon manufacture, and particularly relates to a connecting sleeve, a lifting assembly and a monocrystalline furnace, wherein the connecting sleeve comprises an opening sleeve and an embedded part, the side wall of the opening sleeve is provided with a lateral incision penetrating through the inner peripheral wall and the outer peripheral wall, and the lateral incision extends from the upper end to the lower end of the opening sleeve; the embedded part is fixedly embedded in the lateral incision, and the lower end face of the embedded part and the lower end face of the opening sleeve are spliced to form a continuous annular surface. By adopting the technical scheme of the utility model, through the adaptation of the opening sleeve in the connecting sleeve and the embedded part, the pulling force born by the pulling rope is sequentially transmitted to the rope head, the annular surface of the connecting sleeve, the contact surface of the connecting sleeve and the heavy hammer during lifting operation, so that the heavy hammer can be lifted by the pulling rope. Because the continuous annular surface is formed between the opening sleeve and the lower end surface of the embedded part and is contacted with the rope head, the connecting sleeve is uniformly stressed and is not easy to deform, and the perpendicularity of the heavy hammer can be ensured to be controlled within the process requirement range.

Inventors

  • HAO HAIPENG
  • LI ZHUOYUE
  • WANG YIRAN

Assignees

  • 包头晶澳太阳能科技有限公司

Dates

Publication Date
20260512
Application Date
20250421

Claims (10)

  1. 1. A connection sleeve, comprising: An opening sleeve (310), the side wall of which is provided with a lateral incision (330) penetrating through the inner peripheral wall and the outer peripheral wall, and the lateral incision (330) extends from the upper end to the lower end of the opening sleeve (310); The insert (320) is fixedly embedded in the lateral notch (330), and the lower end face of the insert (320) and the lower end face of the opening sleeve (310) are spliced to form a continuous annular surface (301).
  2. 2. The connection sleeve according to claim 1, characterized in that the spacing of the two side walls of the lateral incision (330) decreases gradually from the inside to the outside, the spacing of the two side walls of the insert (320) decreases gradually from the inside to the outside, the insert (320) being adapted to the lateral incision (330).
  3. 3. The connecting sleeve according to claim 1, characterized in that the distance between the two side walls of the lateral incision (330) increases gradually from top to bottom, the distance between the two side walls of the insert (320) increases gradually from top to bottom, and the insert (320) is adapted to the lateral incision (330).
  4. 4. A connecting sleeve according to any one of claims 1-3, characterized in that the annular surface (301) comprises an annular concave surface (302), a part of the lower end surface of the opening sleeve (310) close to the inner side is recessed to form a first concave surface (313), a part of the lower end surface of the insert (320) close to the inner side is recessed to form a second concave surface (323), and the annular concave surface (302) is formed by splicing the first concave surface (313) and the second concave surface (323).
  5. 5. A connecting sleeve according to any one of claims 1-3, characterized in that the connecting sleeve (300) has an inverted T-shaped structure, the split sleeve (310) comprises a sleeve body part (311) positioned above and a flange part (312) positioned below, the lateral incision (330) forms a first incision (331) on the sleeve body part (311), and the lateral incision (330) forms a second incision (332) on the flange part (312); The insert (320) comprises a first insert portion (321) and a second insert portion (322), wherein the first insert portion (321) is inserted into the first notch (331) to enable the first insert portion (321) and the sleeve body portion (311) to be spliced to form a closed annular structure, and the second insert portion (322) is inserted into the second notch (332) to enable the second insert portion (322) and the flange portion (312) to be spliced to form a closed annular structure.
  6. 6. A lifting assembly, characterized by comprising a weight (200), a pull rope (100) and a connecting sleeve (300) according to any one of claims 1-5; The upper end face of the heavy hammer (200) is provided with an assembly hole (210) along the axial direction, the connecting sleeve (300) is fixedly arranged in the assembly hole (210), the pull rope (100) is arranged in the connecting sleeve (300) in a penetrating mode, the end portion of the pull rope (100) is provided with a rope head (110), and the rope head (110) is abutted to an annular surface (301) formed by splicing the opening sleeve (310) and the embedded piece (320).
  7. 7. The lifting assembly according to claim 6, wherein the assembly hole (210) is a stepped hole, the assembly hole (210) comprises a small hole part and a large hole part which are coaxially communicated from top to bottom, and the joint of the small hole part and the large hole part forms an annular stepped surface; The connecting sleeve (300) is of an inverted T-shaped structure, and the connecting sleeve (300) comprises the opening sleeve (310) and the embedded piece (320); the opening sleeve (310) comprises a sleeve body part (311) positioned above and a flange part (312) positioned below, wherein the side wall of the opening sleeve is provided with a lateral incision (330) penetrating through the inner peripheral wall and the outer peripheral wall, the lateral incision (330) is provided with a first incision (331) on the sleeve body part (311), and the lateral incision (330) is provided with a second incision (332) on the flange part (312); The insert (320) comprises a first insert portion (321) and a second insert portion (322), wherein the first insert portion (321) is inserted into the first notch (331), and the second insert portion (322) is inserted into the second notch (332); The annular structure formed by splicing the sleeve body part (311) and the first embedded part (321) is fixedly arranged in the small hole part in a penetrating mode, the annular structure formed by splicing the flange part (312) and the second embedded part (322) is arranged in the large hole part in a penetrating mode, and the upper end face of the annular structure formed by the flange part (312) and the second embedded part (322) is abutted to the step surface.
  8. 8. The pulling assembly according to claim 6 or 7, wherein the rope end (110) is spherical, a portion, close to the inner side, of the lower end surface of the opening sleeve (310) is recessed to form a first concave surface (313), a portion, close to the inner side, of the lower end surface of the insert (320) is recessed to form a second concave surface (323), the first concave surface (313) and the second concave surface (323) are spliced to form an annular concave surface (302), and the annular concave surface (302) is matched with the surface of the rope end (110).
  9. 9. The pulling assembly of claim 8, wherein a maximum diameter of the annular concave surface (302) is equal to a diameter of the rope hitch (110).
  10. 10. A single crystal furnace comprises a furnace body and is characterized in that the lifting assembly of any one of claims 6-9 is arranged in the furnace body.

Description

Connecting sleeve, lifting assembly and single crystal furnace Technical Field The utility model relates to the technical field of monocrystalline silicon manufacturing, in particular to a connecting sleeve, a lifting assembly and a monocrystalline furnace. Background In the Czochralski single crystal silicon growth process, a weight is one of the key components of the crystal pulling system, and its core function is to provide stable pulling force for crystal growth by self gravity. As shown in fig. 1, the top end of the heavy hammer 200 is lifted by the pull rope 100 in the single crystal furnace, so that the seed crystal 500 connected with the bottom of the heavy hammer 200 by the graphite chuck 400 can realize uniform steady-state lifting along the vertical direction, thereby avoiding defects of dislocation, twin crystal and the like caused by uneven stress in the growth process of crystals and guaranteeing the lattice integrity of single crystals. The existing tungsten wire rope is connected with the heavy hammer 200 through the opening sleeve 310, wherein the top of the heavy hammer 200 is provided with the assembly hole 210, the side wall of the opening sleeve 310 is provided with the lateral incision, the end part of the tungsten wire rope is provided with the rope head 110, the tungsten wire rope is required to be moved into the opening sleeve 310 from the lateral incision during assembly, and then the opening sleeve 310 is installed into the assembly hole 210. In performing the pulling operation, the tungsten wire rope is in contact with the lower end surface of the split sleeve 310 through the rope head 110 to achieve force transmission. The existence of the lateral incision can deform the lower end surface of the opening sleeve 310 due to uneven stress, thereby causing deviation of verticality of the heavy hammer 200 and the seed crystal 500, and causing inclination of the grown crystal rod 600, and the inclined crystal rod 600 is broken due to transverse acting force applied to the thin neck portion 610, so that falling accident occurs. Disclosure of utility model In order to solve the problem that the perpendicularity of a heavy hammer is deviated due to the fact that an existing opening sleeve is easy to deform, the utility model provides a connecting sleeve, a lifting assembly and a single crystal furnace. According to an embodiment of the utility model, there is provided a connection sleeve comprising: The side wall of the opening sleeve is provided with a lateral incision penetrating through the inner peripheral wall and the outer peripheral wall, and the lateral incision extends from the upper end to the lower end of the opening sleeve; the embedded piece is fixedly embedded in the lateral incision, and the lower end face of the embedded piece and the lower end face of the opening sleeve are spliced to form a continuous annular surface. In some embodiments, the lateral incision has a distance between the two sidewalls that decreases gradually from the inside to the outside, and the insert fits into the lateral incision. In some embodiments, the spacing between the two side walls of the lateral incision increases gradually from top to bottom, the spacing between the two side walls of the insert increases gradually from top to bottom, and the insert fits into the lateral incision. In some embodiments, the annular surface comprises an annular concave surface, a part, close to the inner side, of the lower end surface of the opening sleeve is recessed to form a first concave surface, a part, close to the inner side, of the lower end surface of the insert is recessed to form a second concave surface, and the annular concave surface is formed by splicing the first concave surface and the second concave surface. In some embodiments, the connection sleeve is in an inverted T-shaped structure, the connection sleeve comprising the split sleeve and the insert; The opening sleeve comprises a sleeve body part positioned above and a flange part positioned below, and the side wall of the opening sleeve is provided with a lateral incision penetrating through the inner peripheral wall and the outer peripheral wall; The embedded part comprises a first embedded part and a second embedded part, wherein the first embedded part is embedded in the first notch to enable the first embedded part and the sleeve body part to be spliced to form a closed annular structure, and the second embedded part is embedded in the second notch to enable the second embedded part and the flange part to be spliced to form a closed annular structure. According to a second aspect of the present utility model, there is provided a lifting assembly comprising a weight, a pull rope and the connecting sleeve, The upper end face of the heavy hammer is provided with an assembly hole along the axial direction, the connecting sleeve is fixedly arranged in the assembly hole, the pull rope is arranged in the connecting sleeve in a penetrating mo