CN117102239B - Cold rolling mill capable of automatically compensating cold rolling thickness - Google Patents
Cold rolling mill capable of automatically compensating cold rolling thickness Download PDFInfo
- Publication number
- CN117102239B CN117102239B CN202310958301.4A CN202310958301A CN117102239B CN 117102239 B CN117102239 B CN 117102239B CN 202310958301 A CN202310958301 A CN 202310958301A CN 117102239 B CN117102239 B CN 117102239B
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- ring
- cylinder
- gear
- cold rolling
- press roller
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- 238000005097 cold rolling Methods 0.000 title claims abstract description 40
- 230000007246 mechanism Effects 0.000 claims abstract description 33
- 230000006835 compression Effects 0.000 claims description 31
- 238000007906 compression Methods 0.000 claims description 31
- 230000005540 biological transmission Effects 0.000 claims description 28
- 230000033001 locomotion Effects 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 abstract description 37
- 239000010959 steel Substances 0.000 abstract description 37
- 238000001514 detection method Methods 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract description 3
- 238000003825 pressing Methods 0.000 description 27
- 239000004519 grease Substances 0.000 description 12
- 230000001360 synchronised effect Effects 0.000 description 8
- 239000007787 solid Substances 0.000 description 4
- 238000010409 ironing Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- VYQRBKCKQCRYEE-UHFFFAOYSA-N ctk1a7239 Chemical compound C12=CC=CC=C2N2CC=CC3=NC=CC1=C32 VYQRBKCKQCRYEE-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B1/24—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process
- B21B1/28—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process by cold-rolling, e.g. Steckel cold mill
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention belongs to the field of cold rolling mills, and particularly relates to a cold rolling mill capable of automatically compensating cold rolling thickness, which comprises a press roller A, a motor A, a portal frame, a hydraulic cylinder, a press roller B and a backing mechanism, wherein the press roller A driven by the motor A to rotate is arranged on two supports of a base through a roll shaft A, the press roller B is arranged on the portal frame through the roll shaft B, and the two hydraulic cylinders for providing pressure for the press roller B are arranged on the portal frame. According to the invention, the matching of the backing mechanism and the press roller A and the press roller B ensures that the thickness of the steel plate before the steel plate is thinned or the thickness of the press roller A and the press roller B is uniformly thinned by the press roller A and the press roller B when errors exist in the pressure of the press roller A and the press roller B, so that the structure for adjusting the pressure of the two press rollers is saved, the thinning precision and the uniformity of the steel plate are improved, and meanwhile, the loss and the waste of the steel plate caused by long-distance thickness detection are avoided.
Description
Technical Field
The invention belongs to the field of cold rolling mills, and particularly relates to a cold rolling mill capable of automatically compensating cold rolling thickness.
Background
Cold rolling is a process of pressing a thicker steel sheet below a crystallization temperature into a thinner steel sheet by two rolls at normal temperature.
In the cold rolling process, two rollers of the cold rolling mill are required to provide certain pressure according to the thickness of the steel plate, and if the plate thickness before the rolling or the pressure of the two rollers has errors, the pressed plate thickness is uneven. Currently, for the situation, the pressure of two rollers is adjusted at any time by detecting the thickness of the steel plate, and the adjustment efficiency of the roller pressure is low and the accuracy is poor. Moreover, the adjustment of the pressure of the two rolls can be accomplished by detecting a longer ironing plate, which causes a larger loss of the detected plate due to the fact that the ironing requirement is not met.
In addition, the rotating pair matched with the roll shafts of the two press rolls on the cold rolling mill is worn after long-time use, and the uniformity of the two press rolls on the thickness of the steel plate is affected.
The invention designs a cold rolling mill capable of automatically compensating cold rolling thickness, which solves the problems.
Disclosure of Invention
In order to solve the defects in the prior art, the invention discloses a cold rolling mill capable of automatically compensating cold rolling thickness, which is realized by adopting the following technical scheme.
The cold rolling mill comprises a press roller A, a motor A, a portal frame, hydraulic cylinders, a press roller B and a pad support mechanism, wherein the press roller A driven by the motor A to rotate is arranged on two supports of a base through the roll shaft A; two backing mechanisms matched with the cylindrical surfaces at the two ends of the press roller A and the press roller B are arranged on the two guide seats of the base.
The backing support mechanism comprises a shell, a cylinder A, a motor B, a ring sleeve A, a cylinder B, a ring C, a ring D, a cylinder D, a hydraulic rod A, a cylinder E, a cylinder F, a ring G, a ring H, a ring I, a cylinder G, a return spring, a cylinder I, a cylinder J, a ring L, a ring M, a ring N, a cylinder K and a hydraulic rod B, wherein the shell is nested in the roll shaft B and vertically slides in the corresponding guide seat, and the ring A at the lower end of the shell is nested and rotated on the roll shaft A; a ring sleeve A driven by a motor B is rotatably matched in a cylinder A in the shell, and a cylinder B driven by three hydraulic rods A uniformly distributed in the circumferential direction is axially slid in the ring sleeve A; the tail end of the cylinder B is rotationally matched with a coaxial ring B which is internally matched with the compression roller B, a ring C is nested and fixed on the ring B, and a ring D which is as thick as the ring B is nested and rotated; the cylinder D which is rotationally matched with the circular ring D is in reverse transmission connection with the cylinder B; the cylinder A is nested and rotated with a cylinder E which is in reverse transmission connection with the annular sleeve A, and a cylinder I which is in reverse transmission connection with the annular sleeve A and axially moves under the drive of three hydraulic rods B which are uniformly distributed in the circumferential direction is nested outside the cylinder E; the tail end of the cylinder F axially and slidably matched with the cylinder E is rotatably matched with a ring G, a ring I matched with the ring C or internally tangent with the compression roller B is rotatably matched with the ring G, a ring H which is the same as the ring G in thickness is nested and fixed on the ring I, and the cylinder G which is in reverse transmission connection with the cylinder F is rotatably matched with the ring I; a reset spring for resetting relative axial movement of the cylinder F and the cylinder B is arranged between the cylinder F and the cylinder B; a circular ring L matched with the circular ring H or internally matched with the press roller B is rotationally matched on a cylinder J at the tail end of the cylinder I, a circular ring M externally matched with the press roller A is nested and fixed on the circular ring L, and a circular ring N is nested and rotated; the circular ring N is rotatably matched with a cylinder K which is in reverse transmission connection with the cylinder I.
As a further improvement of the technology, a bearing is matched between the roll shaft A and the bracket.
As a further improvement of the technology, two ends of the roll shaft B are respectively provided with sliding seats A which are in one-to-one correspondence with the hydraulic cylinders through bearings, and the two sliding seats A vertically slide in corresponding sides of the portal frame under the driving of corresponding hydraulic cylinders.
As a further improvement of the technology, the roll shaft A is connected with a transmission shaft through a cross universal joint, and the transmission shaft is in transmission connection with an output shaft of the motor A through the cross universal joint.
As a further improvement of the technology, a circular ring F is nested and rotated on the cylinder B, and three fixing rods which are in one-to-one correspondence with the hydraulic rods A and slide in sliding grooves on the wall of the cylinder A are arranged on the circular ring F; each fixing rod is connected with a ring plate A in the shell through a corresponding hydraulic rod A; the motor B is arranged on the shell, and a gear F on the output shaft of the motor B is meshed with a gear ring K on the inner wall of the cylinder B.
As a further improvement of the technology, a gear ring E is arranged on the inner wall of the cylinder E, the gear ring E is meshed with gears B in three mounting grooves B on the wall of the cylinder A, and the three gears B are meshed with the gear ring B on the ring sleeve A.
As a further improvement of the technology, a ring sleeve B is arranged on the cylinder F through a ring plate D, and the ring sleeve B is nested and axially slides on the cylinder E; the cylinder G is provided with gear rings F with side baffles at two sides through a ring plate E, a gear D is meshed between the gear rings F and the gear rings G on a ring sleeve B, a shaft sleeve B is rotatably matched with the gear D, and the shaft sleeve B axially slides on a fixed shaft A on the cylinder A.
As a further improvement of the technology, the cylinder B is provided with a cylinder C which is rotationally matched with the circular ring B through a ring plate B; the cylinder D is provided with gear rings C with side baffles at two sides through a ring plate C, a gear C is meshed between the gear rings C and the gear rings D on the cylinder B, a shaft sleeve A is rotatably matched with the gear C, and the shaft sleeve A axially slides on the fixed shaft A.
As a further improvement of the technology, a ring E is rotationally matched on the ring plate C, a ring J is rotationally matched on the ring plate E, and the ring J is connected with the ring E through a reset spring; the inner wall of the cylinder G is provided with a circular ring K for limiting the annular plate C.
As a further improvement of the technology, a gear E is meshed between the gear I and a gear J on the cylinder I, a shaft sleeve C is rotatably matched in the gear E, and the shaft sleeve C axially slides on a fixed shaft B on the ring plate A; a gear ring H is arranged on a cylinder H at the tail end of the cylinder I, the gear ring H is meshed with three gears A in three mounting grooves A on the cylinder A, and the gears A are meshed with the gear rings A on the ring sleeve A; the circular ring O which is in rotary fit with the cylinder H is connected with the inner ring plate A of the shell through three hydraulic rods B.
Compared with the traditional cold rolling mill, the invention ensures that the thickness of the steel plate before the steel plate is thinned or the pressure of the compression roller A and the compression roller B is uniformly thinned by the compression roller A and the compression roller B when the pressure of the compression roller A and the compression roller B is error through the cooperation of the backing mechanism and the compression roller A and the compression roller B, saves the structure for adjusting the pressure of the two compression rollers, improves the thinning precision and the uniformity of the steel plate, and simultaneously avoids the waste of the steel plate caused by long-distance thickness detection.
The backing mechanism has a synchronous structure with the lower fixed compression roller A and the interval between the upper compression roller and the compression roller B can be adjusted, so that the backing mechanism can be effectively matched with the compression roller A after the rotation pair of the compression roller A is worn, and the steel plate can be effectively and uniformly thinned by the compression roller A and the compression roller B without being influenced by the wear of the rotation pair of the compression roller B.
The invention has simple structure and better use effect.
Drawings
Fig. 1 is a schematic overall view of the present invention.
Fig. 2 is a schematic overall cross-sectional view of the present invention.
Fig. 3 is a schematic cross-sectional view of ring B, ring C, ring D, ring G, ring H, ring I, ring L, ring M, ring N, roller a, and roller B in combination with two viewing angles.
Fig. 4 is a schematic view of a bedding mechanism.
FIG. 5 is a schematic cross-sectional view of a cushioning mechanism.
Fig. 6 is a schematic cross-sectional view of the housing.
FIG. 7 is a schematic cross-sectional view of the fitting of ring B, cylinder C, ring B, ring C, ring D and cylinder D.
FIG. 8 is a schematic cross-sectional view of the mating of ring B, ring plate D, cylinder F, ring G, ring H, ring I and cylinder G.
FIG. 9 is a schematic cross-sectional view of cylinder H, cylinder I, cylinder J, ring L, ring M, ring N, cylinder K and disk F.
Reference numerals in the figures: 1. a base; 2. a bracket; 3. a bearing; 4. a roll shaft A; 5. a press roller A; 6. a cross universal joint; 7. a transmission shaft; 8. a motor A; 9. a door frame; 10. a hydraulic cylinder; 11. a sliding seat A; 13. a roll shaft B; 14. a press roller B; 15. a guide seat; 16. a backing support mechanism; 17. a housing; 18. a cylinder A; 19. a chute; 20. a mounting groove A; 21. a mounting groove B; 22. a ring plate A; 23. a circular ring A; 24. a ring sleeve A; 25. a gear ring A; 26. a gear ring B; 27. a gear A; 28. a gear B; 29. a cylinder B; 30. a ring plate B; 31. a cylinder C; 32. a circular ring B; 33. a circular ring C; 34. a circular ring D; 35. a cylinder D; 36. a ring plate C; 37. a circular ring E; 38. a gear ring C; 39. a gear C; 40. a shaft sleeve A; 41. a gear ring D; 45. a circular ring F; 46. a fixed rod; 47. a hydraulic rod A; 48. a cylinder E; 49. a ring gear E; 50. a loop B; 51. a ring plate D; 52. a cylinder F; 53. a circular ring G; 54. a circular ring H; 55. a circular ring I; 56. a cylinder G; 57. a ring plate E; 58. a circular ring J; 59. a ring gear F; 60. a gear D; 61. a shaft sleeve B; 62. a ring gear G; 63. a circular ring K; 64. a return spring; 65. a fixed shaft A; 66. a gear ring H; 67. a cylinder H; 68. a cylinder I; 69. a cylinder J; 70. a circular ring L; 71. a circular ring M; 72. a circular ring N; 73. a cylinder K; 74. a ring plate F; 75. a gear ring I; 76. a gear E; 77. a shaft sleeve C; 78. gear ring J; 79. a circular ring O; 80. a hydraulic rod B; 81. a fixed shaft B; 82. a gear ring K; 83. a gear F; 84. and a motor B.
Detailed Description
The drawings are schematic representations of the practice of the invention to facilitate understanding of the principles of operation of the structure. The specific product structure and the proportional size are determined according to the use environment and the conventional technology.
As shown in fig. 1 and 2, the device comprises a compression roller A5, a motor A8, a portal 9, a hydraulic cylinder 10, a compression roller B14 and a pad support mechanism 16, wherein as shown in fig. 1, 2 and 3, the compression roller A5 driven by the motor A8 to rotate is arranged on two brackets 2 of a base 1 through a roll shaft A4, the portal 9 is provided with the compression roller B14 through a roll shaft B13 and two hydraulic cylinders 10 for providing pressure for the compression roller B14; two backing mechanisms 16 matched with the cylindrical surfaces at the two ends of the press roller A5 and the press roller B14 are arranged on the two guide seats 15 of the base 1.
As shown in fig. 4 and 5, the backing mechanism 16 includes a housing 17, a cylinder a18, a motor B84, a ring sleeve a24, a cylinder B29, a ring B32, a ring C33, a ring D34, a cylinder D35, a hydraulic rod a47, a cylinder E48, a cylinder F52, a ring G53, a ring H54, a ring I55, a cylinder G56, a return spring 64, a cylinder I68, a cylinder J69, a ring L70, a ring M71, a ring N72, a cylinder K73, and a hydraulic rod B80, wherein, as shown in fig. 2 and 4, the housing 17 is nested in the roller B13 and vertically slid in the corresponding guide 15, and a ring a23 at the lower end of the housing 17 is nested and rotated on the roller A4; as shown in fig. 5 and 6, a ring sleeve a24 driven by a motor B84 is rotatably matched in a cylinder a18 in the shell 17, and a cylinder B29 driven by three hydraulic rods a47 uniformly distributed in the circumferential direction is axially slid in the ring sleeve a 24; as shown in fig. 3, 5 and 7, the end of the cylinder B29 is rotatably matched with a coaxial ring B32 internally matched with the press roller B14, a ring C33 is nested and fixed on the ring B32, and a ring D34 with the same thickness as the ring B32 is nested and rotated; the cylinder D35 which is rotationally matched with the circular ring D34 is in reverse transmission connection with the cylinder B29; the cylinder A18 is nested and rotated with a cylinder E48 which is in reverse transmission connection with the annular sleeve A24, and a cylinder I68 which is in reverse transmission connection with the annular sleeve A24 and is driven by three hydraulic rods B80 which are uniformly distributed in the circumferential direction to axially move is nested outside the cylinder E48; as shown in fig. 5 and 8, a circular ring G53 is rotationally matched with the tail end of a cylinder F52 axially and slidingly matched with a cylinder E48, a circular ring I55 which is rotationally matched with a circular ring C33 or internally matched with a press roller B14 is rotationally matched with the circular ring G53, a circular ring H54 which is as thick as the circular ring G53 is nested and fixed on the circular ring I55, and a cylinder G56 which is in reverse transmission connection with the cylinder F52 is rotationally matched with the circular ring F52; a return spring 64 for returning the relative axial movement of the cylinder F52 and the cylinder B29 is installed between them; as shown in fig. 5 and 9, a circular ring L70 matched with the circular ring H54 or internally matched with the press roller B14 is rotationally matched with a cylinder J69 at the tail end of the cylinder I68, a circular ring M71 externally matched with the press roller A5 is nested and fixed on the circular ring L70, and a circular ring N72 is nested and rotated; the circular ring N72 is rotatably matched with a cylinder K73 which is in reverse transmission connection with the cylinder I68.
As shown in fig. 2, a bearing 3 is fitted between the roller A4 and the bracket 2.
As shown in fig. 2, both ends of the roll shaft B13 are respectively provided with sliding seats a11 corresponding to the hydraulic cylinders 10 one by one through bearings 3, and the two sliding seats a11 are respectively driven by the corresponding hydraulic cylinders 10 to vertically slide in the corresponding sides of the portal frame 9.
As shown in fig. 1 and 2, the roll shaft A4 is connected with a transmission shaft 7 through a cross universal joint 6, and the transmission shaft 7 is in transmission connection with an output shaft of a motor A8 through the cross universal joint 6.
As shown in fig. 5, 6 and 7, the cylinder B29 is nested and rotated with a circular ring F45, and three fixing rods 46 which are in one-to-one correspondence with the hydraulic rods a47 and slide in the sliding grooves 19 on the wall of the cylinder a18 are installed on the circular ring F45; each fixing rod 46 is connected with the annular plate A22 in the shell 17 through a corresponding hydraulic rod A47; a motor B84 is mounted on the housing 17, and a gear F83 on the output shaft of the motor B84 meshes with a ring gear K82 on the inner wall of the cylinder B29.
As shown in fig. 5, a gear ring E49 is mounted on the inner wall of the cylinder E48, the gear ring E49 is meshed with the gears B28 in the three mounting grooves B21 on the wall of the cylinder a18, and the three gears B28 are meshed with the gear ring B26 on the ring sleeve a 24.
As shown in fig. 5 and 8, the cylinder F52 is provided with a collar B50 through a collar D51, and the collar B50 is nested and axially slid on the cylinder E48; the cylinder G56 is provided with a gear ring F59 with side stops on both sides through a ring plate E57, a gear D60 is engaged between the gear ring F59 and a gear ring G62 on the ring sleeve B50, a shaft sleeve B61 is rotatably fitted in the gear D60, and the shaft sleeve B61 axially slides on a fixed shaft a65 on the cylinder a 18.
As shown in fig. 5 and 7, the cylinder B29 is provided with a cylinder C31 rotatably fitted with a ring B32 via a ring plate B30; the cylinder D35 is provided with a gear ring C38 with side stops at two sides through a ring plate C36, a gear C39 is meshed between the gear ring C38 and a gear ring D41 on the cylinder B29, a shaft sleeve A40 is rotatably matched with the gear C39, and the shaft sleeve A40 axially slides on a fixed shaft A65.
As shown in fig. 5, 7 and 8, the ring plate C36 is rotatably fitted with a ring E37, the ring plate E57 is rotatably fitted with a ring J58, and the ring J58 is connected with the ring E37 by a return spring 64; the inner wall of the cylinder G56 is provided with a circular ring K63 for limiting the ring plate C36.
As shown in fig. 5 and 9, the cylinder K73 is provided with a gear ring I75 with side stops at two sides through a ring plate F74, a gear E76 is meshed between the gear ring I75 and a gear ring J78 on the cylinder I68, a shaft sleeve C77 is rotatably matched with the gear E76, and the shaft sleeve C77 axially slides on a fixed shaft B81 on the ring plate a 22; a gear ring H66 is arranged on a cylinder H67 at the tail end of the cylinder I68, the gear ring H66 is meshed with three gears A27 in three mounting grooves A20 on the cylinder A18, and the gears A27 are meshed with a gear ring A25 on a ring sleeve A24; the ring O79, which is in rotary engagement with the cylinder H67, is connected to the inner ring plate a22 of the housing 17 by three hydraulic rods B80.
The sum of the thicknesses of the ring L70 and the ring M71 in the invention is 1 mm, the sum of the thicknesses of the ring H54 and the ring I55 is 1 mm, and the sum of the thicknesses of the ring B32 and the ring C33 is 1 mm.
The ring B32, the ring C33, the ring D34, the ring G53, the ring H54, the ring I55, the ring L70, the ring M71 and the ring N72 are subjected to quenching treatment, and have higher hardness.
In the present invention, grease is filled in the rotating pair between the ring D34 and the cylinder D35, grease is filled in the rotating pair between the ring B32 and the cylinder C31, grease is filled in the rotating pair between the ring G53 and the cylinder F52, grease is filled in the rotating pair between the ring I55 and the cylinder G56, grease is filled in the rotating pair between the ring N72 and the cylinder K73, and grease is filled in the rotating pair between the ring L70 and the cylinder J69.
The working flow of the invention is as follows: in the initial state, the ring B32, the ring C33 and the ring D34 are retracted by a certain amplitude relative to the ring I55, the ring I55 and the ring H54 are flush with the ring L70 and the ring M71 and are separated from the press roller A5 and the press roller B14, the reset spring 64 is in a stretched state, and the ring plate C36 is axially abutted against the ring K63. Both the hydraulic rod a47 and the hydraulic rod B80 are in an extended state. The circular ring M71 is always in an circumscribed state with the press roller A5.
When the steel plate is required to be cold-rolled and thinned to be 1 mm thick by using the invention, three hydraulic rods B80 in two backing mechanisms 16 are started to shrink, the three hydraulic rods B80 in each backing mechanism 16 drive a cylinder H67 and a cylinder I68 to axially move by a certain amplitude through corresponding rings O79, the cylinder I68 drives a ring L70 to enter between a press roller A5 and a press roller B14 through a cylinder J69 and enable the ring L70 to be nested on the press roller B14, and the ring L70 drives a ring M71 and a ring N72 to enter between the press roller A5 and the press roller B14 and enable the ring M71 and the ring N72 to be circumscribed with the press roller A5. The circular ring N72 drives the shaft sleeve C77 to axially slide on the fixed shaft B81 by a certain amplitude through the cylinder K73, the ring plate F74, the gear ring I75 and the gears E76, and the gear ring H66 and the three gears A27 generate relative axial sliding by a certain amplitude and still maintain the mutual meshing state.
Then, two hydraulic cylinders 10 are started to drive two sliding seats A11 to move by a certain amplitude, the two sliding seats A11 drive a pressing roller B14 to move by a certain amplitude through a roller shaft B13, so that the pressing roller A5 and the pressing roller B14 form tight clamping on the circular ring L70, the circular ring M71 and the circular ring N72, the pressure between the pressing roller A5 and the pressing roller B14 does not damage the circular ring L70, the circular ring M71 and the circular ring N72, and at the moment, the pressing roller B14 and the circular ring L70 are in an inscribed state, and a gap between the pressing roller A5 and the pressing roller B14 is 1 millimeter.
Then, the motor A8 is started, the motor A8 drives the press roller A5 to rotate through the cross universal joint 6, the transmission shaft 7 and the roll shaft A4, the press roller A5 drives the circular ring L70, the circular ring M71 and the circular ring N72 to rotate relative to the cylinder J69 and the cylinder K73, the circular ring L70 drives the press roller B14 to rotate, and the rotating direction of the circular ring L70 is opposite to that of the press roller A5.
After the steel plate enters between the press roller A5 and the press roller B14, the steel plate is continuously thinned to a thickness of 1 millimeter under the drive of the press roller A5 and the press roller B14, and the limit of the circular ring L70, the circular ring M71 and the circular ring N72 to the press roller A5 and the press roller B14 can ensure that the steel plate is continuously and uniformly thinned to a thickness of 1 millimeter under the condition of enough pressure between the press roller A5 and the press roller B14 without detecting the thickness of the steel plate at any time.
When the steel plate is required to be cold-rolled and thinned to be 2 mm thick, three hydraulic rods B80 in two backing mechanisms 16 are started to shrink, the three hydraulic rods B80 in each backing mechanism 16 drive a cylinder H67 and a cylinder I68 to axially move by a certain amplitude through corresponding rings O79, the cylinder I68 drives a ring L70 to enter between a press roller A5 and a press roller B14 through a cylinder J69 and enable the ring L70 to be nested on the press roller B14, and the ring L70 drives a ring M71 and a ring N72 to enter between the press roller A5 and the press roller B14 and enable the ring M71 and the ring N72 to be circumscribed with the press roller A5. The circular ring N72 drives the shaft sleeve C77 to axially slide on the fixed shaft B81 by a certain amplitude through the cylinder K73, the ring plate F74, the gear ring I75 and the gears E76, and the gear ring H66 and the three gears A27 generate relative axial sliding by a certain amplitude and still maintain the mutual meshing state. Then, three hydraulic rods A47 in the two backing mechanisms 16 are started to shrink by a certain amplitude, the three hydraulic rods A47 in each backing mechanism 16 drive a cylinder B29 to move axially by a certain amplitude through a corresponding fixing rod 46 and a circular ring F45, the cylinder B29 drives a circular ring B32 to move by a certain amplitude through a circular plate B30 and a circular ring C31 and to be flush with the end of a circular ring L70 in an initial state, the circular ring B32 drives a circular ring C33 and a circular ring D34 to move synchronously by the same amplitude, and the circular ring D34 drives a shaft sleeve A40 to slide on a fixed shaft A65 by a certain amplitude through a circular ring D35, a circular plate C36, a gear ring C38 and a gear C39. Simultaneously, ring plate C36 drives drum G56 and ring gear F59 synchronous motion certain range through ring E37, reset spring 64, ring J58 and ring plate E57, drum G56 drives ring I55, ring H54 and ring G53 synchronous motion certain range get into between compression roller B14 and ring L70 and make ring H54 and ring I55 and ring L70 and ring M71 tip parallel and level, ring gear F59 drives axle sleeve B61 through gear D60 and slides certain range on fixed axle A65 axially, simultaneously, ring G53 drives ring sleeve B50 and ring gear G62 synchronous motion certain range through drum F52, ring plate D51.
Then, two hydraulic cylinders 10 are started to drive two sliding seats A11 to move by a certain amplitude, the two sliding seats A11 drive a pressing roller B14 to move by a certain amplitude through a roller shaft B13, so that the pressing roller A5 and the pressing roller B14 form tight clamping on a circular ring L70, a circular ring M71, a circular ring N72, a circular ring G53, a circular ring H54 and a circular ring I55, the pressure between the pressing roller A5 and the pressing roller B14 does not damage the circular ring L70, the circular ring M71, the circular ring N72, the circular ring G53, the circular ring H54 and the circular ring I55, and at the moment, the pressing roller B14 and the circular ring I55 are in an inscribed state, and a gap between the pressing roller A5 and the pressing roller B14 is 2 mm.
Then, the motor A8 is started, the motor A8 drives the press roller A5 to rotate through the cross universal joint 6, the transmission shaft 7 and the roll shaft A4, the press roller A5 drives the ring L70, the ring M71, the ring N72, the ring G53, the ring H54 and the ring I55 to rotate relative to the cylinder J69, the cylinder K73, the cylinder F52 and the cylinder G56, and the ring I55 drives the press roller B14 to rotate in the opposite rotation direction to the press roller A5.
After the steel plate enters between the press roller A5 and the press roller B14, the steel plate is continuously thinned to a thickness of 2 millimeters under the drive of the press roller A5 and the press roller B14, and the steel plate is continuously thinned to a thickness of 2 millimeters under the condition that enough pressure exists between the press roller A5 and the press roller B14 without detecting the thinned steel plate at any time because the circular rings L70, the circular rings M71, the circular rings N72, the circular rings G53, the circular rings H54 and the circular rings I55 limit the press roller A5 and the press roller B14.
When the steel plate is required to be cold-rolled and thinned to 4 mm in thickness by using the invention, three hydraulic rods B80 in two backing mechanisms 16 are started to shrink, the three hydraulic rods B80 in each backing mechanism 16 drive a cylinder H67 and a cylinder I68 to axially move by a certain amplitude through corresponding rings O79, the cylinder I68 drives a ring L70 to enter between a press roller A5 and a press roller B14 through a cylinder J69 and enable the ring L70 to be nested on the press roller B14, and the ring L70 drives a ring M71 and a ring N72 to enter between the press roller A5 and the press roller B14 and enable the ring M71 and the ring N72 to be circumscribed with the press roller A5. The circular ring N72 drives the shaft sleeve C77 to axially slide on the fixed shaft B81 by a certain amplitude through the cylinder K73, the ring plate F74, the gear ring I75 and the gears E76, and the gear ring H66 and the three gears A27 generate relative axial sliding by a certain amplitude and still maintain the mutual meshing state. Then, three hydraulic rods A47 in the two backing mechanisms 16 are started to shrink by a certain amplitude, the three hydraulic rods A47 in each backing mechanism 16 drive a cylinder B29 to move axially by a certain amplitude through a corresponding fixing rod 46 and a circular ring F45, the cylinder B29 drives a circular ring B32 to move by a certain amplitude through a circular plate B30 and a circular ring C31 and to be flush with the end of a circular ring L70 in an initial state, the circular ring B32 drives a circular ring C33 and a circular ring D34 to move synchronously by the same amplitude, and the circular ring D34 drives a shaft sleeve A40 to slide on a fixed shaft A65 by a certain amplitude through a circular ring D35, a circular plate C36, a gear ring C38 and a gear C39. Simultaneously, ring plate C36 drives drum G56 and ring gear F59 synchronous motion certain range through ring E37, reset spring 64, ring J58 and ring plate E57, drum G56 drives ring I55, ring H54 and ring G53 synchronous motion certain range get into between compression roller B14 and ring L70 and make ring H54 and ring I55 and ring L70 and ring M71 tip parallel and level, ring gear F59 drives axle sleeve B61 through gear D60 and slides certain range on fixed axle A65 axially, simultaneously, ring G53 drives ring sleeve B50 and ring gear G62 synchronous motion certain range through drum F52, ring plate D51, and axle sleeve B61 is axially limited in fixed axle A65 motion extreme position. Finally, the three hydraulic rods A47 are continuously contracted and drive the ring B32, the ring C33 and the ring D34 to move by a certain amplitude, so that the ends of the ring B32, the ring C33, the ring H54 and the ring I55 are flush, at the moment, the shaft sleeve A40 moves to the limit position of the fixed shaft A65 and is axially limited, and the reset spring 64 is further stretched.
Then, two hydraulic cylinders 10 are started to drive two sliding seats A11 to move by a certain amplitude, the two sliding seats A11 drive a pressing roller B14 to move by a certain amplitude through a roller shaft B13, so that a pressing roller A5 and the pressing roller B14 form tight clamping on a circular ring L70, a circular ring M71, a circular ring N72, a circular ring G53, a circular ring H54, a circular ring I55, a circular ring B32, a circular ring C33 and a circular ring D34, the pressing force between the pressing roller A5 and the pressing roller B14 does not damage the circular ring L70, the circular ring M71, the circular ring N72, the circular ring G53, the circular ring H54, the circular ring I55, the circular ring B32, the circular ring C33 and the circular ring D34, and at the moment, the pressing roller B14 and the circular ring B32 are in an inscribed state, and a gap between the pressing roller A5 and the pressing roller B14 is 4 mm.
Then, the motor A8 is started, the motor A8 drives the press roller A5 to rotate through the cross universal joint 6, the transmission shaft 7 and the roll shaft A4, the press roller A5 drives the ring L70, the ring M71, the ring N72, the ring G53, the ring H54, the ring I55, the ring B32, the ring C33 and the ring D34 to rotate relative to the cylinder J69, the cylinder K73, the cylinder F52, the cylinder G56, the cylinder C31 and the cylinder D35, and the ring B32 drives the press roller B14 to rotate in the opposite rotation direction to the press roller A5.
After the steel plate enters between the press roller A5 and the press roller B14, the steel plate is continuously thinned to a thickness of 4 mm under the drive of the press roller A5 and the press roller B14, and the limit of the circular ring L70, the circular ring M71, the circular ring N72, the circular ring G53, the circular ring H54, the circular ring I55, the circular ring B32, the circular ring C33 and the circular ring D34 to the press roller A5 and the press roller B14 is ensured to be continuously and uniformly thinned to a thickness of 4 mm under the condition of enough pressure between the press roller A5 and the press roller B14 without detecting the thickness of the steel plate at any time.
When the revolute pair between the roller shaft A4 where the roller A5 is positioned and the support 2 is worn, the roller shaft A4 drives the roller A5 to move downwards a small distance, the roller shaft A4 drives the two backing mechanisms 16 to synchronously move downwards by the same distance through the two circular rings A23 which are in rotary fit with the roller A4, the circular rings M71 and the circular rings N72 which are positioned on the outermost ring in the two backing mechanisms 16 are always in a circumscribed state with the roller, and further, the uniformity of the roller A5 and the roller B14 in thinning of a steel plate under the fit of the backing mechanisms 16 is not influenced by the wear of the revolute pair where the roller A4 where the roller A5 is positioned.
When the ring L70, the ring M71, the ring N72 or the ring G53, the ring H54, the ring I55 or the ring B32, the ring C33 and the ring D34 are deformed to a certain extent at a certain position point due to the excessive pressure between the press roller A5 and the press roller B14, the motor B84 is started, the motor B84 drives the cylinder C31, the cylinder D35, the cylinder F52, the cylinder G56, the cylinder K73 and the cylinder J69 to rotate, the cylinder C31 drives the ring B32 and the ring C33 to rotate by a certain angle through solid grease, the cylinder D35 drives the ring D34 to rotate by a certain amplitude through solid grease, and the rotation direction of the cylinder D35 is opposite to the rotation direction of the ring B32 and the ring C33, so that the deformed position points on the ring B32, the ring C33 and the ring D34 are dislocated. The cylinder F52 drives the ring G53 to rotate for a certain angle through fixed grease, the cylinder G56 drives the ring I55 and the ring H54 to rotate for a certain angle through fixed solid grease, and the rotating direction of the cylinder F is opposite to the rotating direction of the ring G53, so that dislocation is generated at deformed position points on the ring G53, the ring H54 and the ring I55. The cylinder K73 drives the ring N72 to rotate for a certain angle through fixed grease, and the cylinder J69 drives the ring L70 and the ring M71 to rotate for a certain angle through fixed solid grease and the rotating direction of the cylinder is opposite to that of the ring N72, so that dislocation is generated at deformed position points on the ring L70, the ring M71 and the ring N72. The gaps between the press rolls A5 and the press rolls B14 are not changed due to the local deformation of the rings L70, M71, N53, H54, I55 or B32, C33 and D34 when the deformation of the rings L70, M71, N72, G53, H54, I55 or D34 is caused by the dislocation of the deformed positions on the rings G53, M71 and N72 or the dislocation of the deformed positions on the rings B32, C33 and D34, so that the press rolls A5 and B14 can uniformly press the steel plate when the rings L70, M71, N72 or G53, H54, I55 or B32, C33 and D34 are locally deformed.
In summary, the beneficial effects of the invention are as follows: according to the invention, the matching of the backing mechanism 16 and the press roller A5 and the press roller B14 ensures that the thickness of the steel plate before the steel plate is thinned or the thickness of the press roller A5 and the press roller B14 is uniformly thinned by the press roller A5 and the press roller B14 when errors exist in the pressure of the press roller A5 and the press roller B14, so that the structure for adjusting the pressure of the two press rollers is saved, the thinning precision and the uniformity of the steel plate are improved, and meanwhile, the loss and the waste of the steel plate caused by long-distance thickness detection are avoided.
According to the invention, the backing mechanism 16 has a synchronous structure with the lower fixed press roller A5, and the distance between the upper press roller and the press roller B14 can be adjusted, so that the backing mechanism 16 can still be effectively matched with the press roller A5 after the rotating pair of the press roller A5 is worn, and the steel plate can be effectively and uniformly thinned by the press roller A5 and the press roller B14 without being influenced by the wear of the rotating pair of the press roller B14.
The invention can thin the steel plate with thickness of 1 mm, 2 mm and 4 mm, and has a higher application range. Meanwhile, after the ring B32, the ring C33 and the ring D34 or the ring G53, the ring H54 and the ring I55 or the ring L70, the ring M71 and the ring N72 are excessively pressed and deformed by the pressing roller B14, the parts of the ring B32, the ring C33 and the ring D34 or the ring G53, the ring H54 and the ring I55 or the ring L70, the ring M71 and the ring N72, which are pressed and deformed, can be compensated by a certain amplitude through mutual rotation of the ring B32, the ring C33 and the ring D34 or the ring G53, the ring M71 and the ring M53 or the ring L55 or the ring L70, the ring M71 and the ring N72, so that the precision of the corresponding steel plates with the thin thickness is ensured.
Claims (10)
1. A cold rolling mill for automatically compensating cold rolling thickness is characterized in that: the device comprises a compression roller A, a motor A, a portal frame, hydraulic cylinders, a compression roller B and a pad support mechanism, wherein the compression roller A driven by the motor A to rotate is arranged on two supports of a base through a roll shaft A; two backing mechanisms matched with cylindrical surfaces at two ends of the press roller A and the press roller B are arranged on the two guide seats of the base;
the backing support mechanism comprises a shell, a cylinder A, a motor B, a ring sleeve A, a cylinder B, a ring C, a ring D, a cylinder D, a hydraulic rod A, a cylinder E, a cylinder F, a ring G, a ring H, a ring I, a cylinder G, a return spring, a cylinder I, a cylinder J, a ring L, a ring M, a ring N, a cylinder K and a hydraulic rod B, wherein the shell is nested in the roll shaft B and vertically slides in the corresponding guide seat, and the ring A at the lower end of the shell is nested and rotated on the roll shaft A; a ring sleeve A driven by a motor B is rotatably matched in a cylinder A in the shell, and a cylinder B driven by three hydraulic rods A uniformly distributed in the circumferential direction is axially slid in the ring sleeve A; the tail end of the cylinder B is rotationally matched with a coaxial ring B which is internally matched with the compression roller B, a ring C is nested and fixed on the ring B, and a ring D which is as thick as the ring B is nested and rotated; the cylinder D which is rotationally matched with the circular ring D is in reverse transmission connection with the cylinder B; the cylinder A is nested and rotated with a cylinder E which is in reverse transmission connection with the annular sleeve A, and a cylinder I which is in reverse transmission connection with the annular sleeve A and axially moves under the drive of three hydraulic rods B which are uniformly distributed in the circumferential direction is nested outside the cylinder E; the tail end of the cylinder F axially and slidably matched with the cylinder E is rotatably matched with a ring G, a ring I matched with the ring C or internally tangent with the compression roller B is rotatably matched with the ring G, a ring H which is the same as the ring G in thickness is nested and fixed on the ring I, and the cylinder G which is in reverse transmission connection with the cylinder F is rotatably matched with the ring I; a reset spring for resetting relative axial movement of the cylinder F and the cylinder B is arranged between the cylinder F and the cylinder B; a circular ring L matched with the circular ring H or internally matched with the press roller B is rotationally matched on a cylinder J at the tail end of the cylinder I, a circular ring M externally matched with the press roller A is nested and fixed on the circular ring L, and a circular ring N is nested and rotated; the circular ring N is rotatably matched with a cylinder K which is in reverse transmission connection with the cylinder I.
2. The cold rolling mill for automatic compensation of cold rolling thickness according to claim 1, characterized in that: and a bearing is matched between the roll shaft A and the bracket.
3. The cold rolling mill for automatic compensation of cold rolling thickness according to claim 1, characterized in that: two ends of the roll shaft B are respectively provided with a sliding seat A which corresponds to the hydraulic cylinders one by one through bearings, and the two sliding seats A vertically slide in corresponding sides of the portal under the driving of corresponding hydraulic cylinders.
4. The cold rolling mill for automatic compensation of cold rolling thickness according to claim 1, characterized in that: the roll shaft A is connected with a transmission shaft through a cross universal joint, and the transmission shaft is in transmission connection with an output shaft of the motor A through the cross universal joint.
5. The cold rolling mill for automatic compensation of cold rolling thickness according to claim 1, characterized in that: the cylinder B is nested and rotated with a circular ring F, and three fixing rods which correspond to the hydraulic rods A one by one and slide in the sliding grooves on the wall of the cylinder A are arranged on the circular ring F; each fixing rod is connected with a ring plate A in the shell through a corresponding hydraulic rod A; the motor B is arranged on the shell, and a gear F on the output shaft of the motor B is meshed with a gear ring K on the inner wall of the cylinder B.
6. The cold rolling mill for automatic compensation of cold rolling thickness according to claim 1, characterized in that: the inner wall of the cylinder E is provided with a gear ring E, the gear ring E is meshed with gears B in three mounting grooves B on the wall of the cylinder A, and the three gears B are meshed with the gear ring B on the ring sleeve A.
7. The cold rolling mill for automatic compensation of cold rolling thickness according to claim 1, characterized in that: a ring sleeve B is arranged on the cylinder F through a ring plate D, and the ring sleeve B is nested and axially slides on the cylinder E; the cylinder G is provided with gear rings F with side baffles at two sides through a ring plate E, a gear D is meshed between the gear rings F and the gear rings G on a ring sleeve B, a shaft sleeve B is rotatably matched with the gear D, and the shaft sleeve B axially slides on a fixed shaft A on the cylinder A.
8. The cold rolling mill for automatic compensation of cold rolling thickness according to claim 7, wherein: the cylinder B is provided with a cylinder C which is in rotary fit with the circular ring B through a ring plate B; the cylinder D is provided with gear rings C with side baffles at two sides through a ring plate C, a gear C is meshed between the gear rings C and the gear rings D on the cylinder B, a shaft sleeve A is rotatably matched with the gear C, and the shaft sleeve A axially slides on the fixed shaft A.
9. The cold rolling mill for automatic compensation of cold rolling thickness according to claim 8, wherein: the ring plate C is rotatably matched with a ring E, the ring plate E is rotatably matched with a ring J, and the ring J is connected with the ring E through a reset spring; the inner wall of the cylinder G is provided with a circular ring K for limiting the annular plate C.
10. The cold rolling mill for automatic compensation of cold rolling thickness according to claim 5, wherein: the cylinder K is provided with gear rings I with side baffles at two sides through a ring plate F, a gear E is meshed between the gear rings I and gear rings J on the cylinder I, a shaft sleeve C is rotatably matched with the gear E, and the shaft sleeve C axially slides on a fixed shaft B on the ring plate A; a gear ring H is arranged on a cylinder H at the tail end of the cylinder I, the gear ring H is meshed with three gears A in three mounting grooves A on the cylinder A, and the gears A are meshed with the gear rings A on the ring sleeve A; the circular ring O which is in rotary fit with the cylinder H is connected with the inner ring plate A of the shell through three hydraulic rods B.
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| JP2000197903A (en) * | 1998-12-25 | 2000-07-18 | Sumitomo Metal Ind Ltd | Method for rolling steel sheet, roll for rolling steel sheet and rolling mill for steel sheet |
| JP2000202532A (en) * | 1999-01-19 | 2000-07-25 | Ishikawajima Harima Heavy Ind Co Ltd | Manufacture of thin sheet structure having ruggedness |
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