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CN-224222687-U - Foot roller adaptive centering device of steel crystallizer

CN224222687UCN 224222687 UCN224222687 UCN 224222687UCN-224222687-U

Abstract

The utility model discloses a foot roller adaptive centering device of a steel crystallizer, which relates to the technical field of centering devices and comprises a centering component, a driving component and a moving component, wherein the centering component comprises a supporting seat, four arc plates arranged on the upper surface of the supporting seat in a circumferential array, a rectangular cavity is formed in the supporting seat, the centering component also comprises a first motor which is fixedly arranged on the lower surface of the supporting seat and is used for driving the four arc plates to move towards the periphery or the middle simultaneously, and the driving component comprises a moving seat arranged at the bottom of the supporting seat. According to the steel crystallizer foot roller adaptive centering device disclosed by the utility model, the centering components are arranged, so that the outer surfaces of the four arc plates can be simultaneously abutted against the foot roller body and the inner wall of the steel crystallizer in the actual use process of the device, and the central axes formed by the foot roller body, the inner wall of the steel crystallizer and the four arc plates are coincident at the moment, so that the purpose of rapid and accurate centering of the foot roller body and the central axis of the steel crystallizer is realized.

Inventors

  • Fu Panjiang

Assignees

  • 武汉君石机械工程有限公司

Dates

Publication Date
20260512
Application Date
20250429

Claims (8)

  1. 1. Steel crystallizer foot roller adaptation centering device, its characterized in that includes: The centering assembly (100) is used for coinciding the central axis of the foot roller body (200) with the central axis of the steel crystallizer, the centering assembly (100) comprises a supporting seat (101) and four arc plates (102) which are arranged on the upper surface of the supporting seat (101) in a circumferential array, the four arc plates (102) are abutted against the inner wall of the foot roller body (200), a rectangular cavity is formed in the supporting seat (101), and the centering assembly (100) further comprises a first motor (103) which is fixedly arranged on the lower surface of the supporting seat (101) and used for driving the four arc plates (102) to move towards the periphery or towards the middle; The driving assembly (300) is used for driving four arc plates (102) to enter the steel crystallizer, the driving assembly (300) comprises a movable seat (301) arranged at the bottom of a supporting seat (101), an annular cavity is formed in the movable seat (301), four sleeves (302) extending to the upper surface of the movable seat (301) are fixedly arranged on the inner top wall of the annular cavity in a circumferential array, inner thread barrels (303) are slidably arranged on the inner wall of each sleeve (302), the top ends of the four inner thread barrels (303) are fixedly connected with the lower surface of the supporting seat (101), and the driving assembly (300) further comprises a second motor (304) fixedly arranged on the upper surface of the movable seat (301) and used for driving the four inner thread barrels (303) to lift simultaneously.
  2. 2. The steel crystallizer foot roller adaptive centering device according to claim 1, wherein four rectangular grooves are formed in the upper surface of the supporting seat (101) in a circumferential array, L-shaped sliding blocks (104) are slidably arranged on the inner walls of the four rectangular grooves, and the four arc-shaped plates (102) are fixedly arranged at the end parts of the four L-shaped sliding blocks (104) respectively.
  3. 3. The steel crystallizer foot roller adaptive centering device according to claim 2, wherein a screw rod (105) extending into the rectangular cavity is rotatably arranged on the inner wall of the rectangular groove, and a threaded hole in threaded connection with the outer surface of the screw rod (105) is formed in the surface of the L-shaped sliding block (104).
  4. 4. The steel crystallizer foot roller adaptive centering device according to claim 3, wherein a driving bevel gear (106) is fixedly arranged at the output end of the first motor (103), driven bevel gears (107) are fixedly arranged at the ends of the four lead screws (105), and the four driven bevel gears (107) are mutually meshed with the driving bevel gears (106).
  5. 5. The steel crystallizer foot roller adaptive centering device according to claim 1, wherein four support columns (108) are fixedly arranged on the upper surface of the support base (101) in a circumferential array, and the top ends of the four support columns (108) are respectively overlapped with the lower surface of the foot roller body (200).
  6. 6. The steel crystallizer foot roller adaptive centering device according to claim 1, wherein the inner bottom wall of the annular cavity is provided with threaded columns (305) corresponding to the inner threaded cylinders (303) in a circumferential array rotation mode, and the outer surfaces of the threaded columns (305) are in threaded connection with the inner walls of the inner threaded cylinders (303).
  7. 7. The steel crystallizer foot roller adaptive centering device according to claim 6, wherein the output end of the second motor (304) extends to the inside of the annular cavity and is fixedly provided with a driving fluted disc (306), the outer surfaces of the four threaded columns (305) are fixedly provided with driven fluted discs (307), and the four driven fluted discs (307) are mutually meshed with the driving fluted disc (306).
  8. 8. The steel crystallizer foot roller adaptive centering device according to claim 1, wherein four fixed columns are fixedly arranged on the lower surface of the movable seat (301) in a circumferential array, rotating cavities are formed in the bottom ends of the four fixed columns, and metal rolling balls (308) are rotatably arranged on the inner walls of the rotating cavities.

Description

Foot roller adaptive centering device of steel crystallizer Technical Field The utility model relates to the technical field of centering devices, in particular to a foot roller adaptive centering device of a steel crystallizer. Background Steel mold foot rolls ‌ are an important component of a continuous casting machine, primarily for supporting and guiding the casting flow from the mold. The foot rollers are divided into wide foot rollers and narrow foot rollers, and are arranged at the bottom of the crystallizer, so that the regular overall dimension of a casting blank is ensured, the drawing speed is improved, and the casting blank is prevented from being removed ‌. When the prior steel crystallizer foot roller is installed, the prior steel crystallizer foot roller is usually installed on the bottom surface of the steel crystallizer through bolts, and then the position angle of the prior steel crystallizer foot roller is adjusted through an adjusting block after the installation, so that the central axis of the steel crystallizer foot roller coincides with the central axis of the crystallizer, however, in the adjusting process, the adjustment is carried out by observing only through the experience of personnel and naked eyes, so that an error exists between the central axis of the foot roller of the steel crystallizer after the adjustment and the central axis of the steel crystallizer, and the quality of a finished product is affected. In view of this, the application proposes a steel crystallizer foot roller adaptation centering device. Disclosure of utility model The utility model discloses a foot roller adaptive centering device of a steel crystallizer, and aims to solve the technical problem that the foot roller and the steel crystallizer cannot be centered rapidly in the prior art. In order to achieve the above purpose, the present utility model adopts the following technical scheme: steel crystallizer foot roller adaptation centering device includes: The centering assembly is used for coinciding the central axis of the foot roller body with the central axis of the steel crystallizer and comprises a supporting seat and four arc plates which are arranged on the upper surface of the supporting seat in a circumferential array, the four arc plates are abutted against the inner wall of the foot roller body, a rectangular cavity is formed in the supporting seat, and the centering assembly further comprises a first motor which is fixedly arranged on the lower surface of the supporting seat and used for driving the four arc plates to move towards the periphery or towards the middle; the driving assembly is used for driving the four arc plates to enter the steel crystallizer, the driving assembly comprises a movable seat arranged at the bottom of the supporting seat, an annular cavity is formed in the movable seat, four sleeves extending to the upper surface of the movable seat are fixedly arranged on the inner top wall of the annular cavity in a circumferential array, inner thread barrels are slidably arranged on the inner wall of the sleeve, the top ends of the four inner thread barrels are fixedly connected with the lower surface of the supporting seat, and the driving assembly further comprises a second motor fixedly arranged on the upper surface of the movable seat and used for driving the four inner thread barrels to lift simultaneously. In a preferred scheme, four rectangular grooves are formed in the upper surface of the supporting seat in a circumferential array, L-shaped sliding blocks are slidably arranged on the inner walls of the four rectangular grooves, and the four arc-shaped plates are fixedly arranged at the end parts of the four L-shaped sliding blocks respectively. Through setting up L type slider, can drive the arc through the removal of L type slider and remove. In a preferred scheme, the inner wall of the rectangular groove is rotatably provided with a screw rod extending into the rectangular cavity, and the surface of the L-shaped sliding block is provided with a threaded hole in threaded connection with the outer surface of the screw rod. Through setting up the lead screw, can drive L type slider automatic movement through the rotation of lead screw. In a preferred scheme, the output end of the first motor is fixedly provided with a driving bevel gear, the end parts of the four lead screws are fixedly provided with driven bevel gears, and the four driven bevel gears are mutually meshed with the driving bevel gears. Through setting up initiative conical gear and driven conical gear, can drive four lead screws and rotate simultaneously through the rotation of first motor. In a preferred scheme, the upper surface of supporting seat is circumference array and has set firmly four support columns, and four the top of support column all with the lower surface overlap joint of sufficient roller body. Through setting up the support column, be convenient for support the placement to the foot