CN204262051U - All-hydraulic lower-drive type vertical miller - Google Patents

Abstract

Full hydraulic bottom drive vertical roll mill, including frame assembly, roll chock assembly, roll box assembly, side pressure and balance device, main drive device, guide beam, exit side guide plate, roll cooling device and frame roll. The left and right symmetrical two roll bearing seat assemblies are respectively placed in the roll box assembly on the left and right sides, half of the roll body of the roll is outside the box; the roll box assembly includes a roll box, a running wheel and a spring compression device, There are running wheels on the top of the two side plates of the roll box, and a hinged device on the outside of the rear panel. The running wheels on the top of the roll box are suspended on the frame assembly, and the box is located in the frame assembly window. The assembled bearing seat is pressed and positioned; the main transmission device is installed at the lower part of the frame assembly, and the bevel gear reducer of the main transmission device is placed at the bottom of the roller box assembled by the roller box. The beneficial effect is that the rolling is stable, the weight of the equipment is light, the structure is simple, the maintenance and use are convenient, and reversible rolling is allowed.

Description

Full-hydraulic bottom drive vertical roll mill

technical field

The utility model belongs to the field of metallurgical machinery and equipment, in particular to a full-hydraulic separation vertical roller mill in a wide and thick plate mill production line.

Background technique

The medium and heavy plate rolling mill production line of the prior art is all equipped with vertical roller mills in order to improve the edge quality and reduce the amount of edge trimming. According to the different rolling processes, the layout of the vertical roll mill and the four-roll mill is divided into two types: attached type and separated type. The deficiencies of the prior art are: the weight of the vertical roller mill equipment is heavy, the equipment structure is complex, maintenance and use are inconvenient, reversible rolling is impossible, and rolling is unstable.

Contents of the invention

The purpose of this utility model is to design a wide and thick plate rolling mill production line-separated vertical roller mill, which solves the problems of traditional vertical roller mill equipment such as heavy weight, complicated equipment structure, inconvenient maintenance and use, and inability to reversible rolling.

The technical scheme of the utility model is: a full-hydraulic lower transmission type vertical roller mill, including frame assembly, roll chock assembly, roll box assembly, side pressure and balance device, main transmission device, guide beam, exit side guide plate, roll Cooling unit and rack rolls. The frame assembly is installed on the foundation, and the roll chock assembly, roll box assembly, side pressure and balance device, main transmission device, guide beam, exit side guide plate, roll cooling device and frame roll are installed on the frame assembly; The chock assembly consists of fitting the shafts at both ends of the roll into the chock through the bearings, and the left and right symmetric two roll chock assemblies are respectively placed in the roll box assembly on the left and right sides; the side pressure and balance device installation On the left and right sides of the frame assembly, the side pressure and balance device includes a roll gap adjustment hydraulic cylinder, a balance hydraulic cylinder and a balance auxiliary hydraulic cylinder; the main transmission device is installed on the left and right sides of the frame assembly, and the main transmission device Each of the main motors is connected to the telescopic universal joint shaft through the cylindrical gear main reducer, the telescopic universal joint shaft is connected to the bevel gear reducer, and the output shaft of the bevel gear reducer is connected to the roll in the roll chock assembly; The guide beam is a retractable passive guide beam; the exit side guide plate is installed on the rack assembly on the exit side of the rolling mill for centering the billet; the roll cooling device is installed above the roll to cool the roll of the vertical roll mill; The rack rolls are installed at the entrance and exit of the vertical roll mill, and are used for steel plates to be introduced and exported to the vertical roll mill. The rack roll motors are connected to the rack rolls through connecting shafts; it is characterized in that: the roll box assembly includes a roll box, Traveling wheel and spring pressing device; the roller box is a trough-shaped box with an opening in the front, and the top of the two side panels of the trough-shaped box is provided with a running wheel, which is located outside the two side panels of the trough-shaped box, and the rear panel of the box There are hinged devices that are hingedly connected with the roll gap adjustment hydraulic cylinder, balance hydraulic cylinder and balance auxiliary hydraulic cylinder respectively; The running wheel on the top of the box body is suspended on the frame assembly, the box body is located in the frame assembly window, and the outside of the box body is in sliding contact with the frame assembly; the roll chock assembly is placed in the roll box of the roll box assembly , half of the roll body of the roll is outside the box, the bearing seat assembled by the roll bearing seat is in sliding contact with the inner wall of the roll box assembled by the roll box, and the spring pressing device presses and positions the bearing seat assembled by the roll bearing seat; the spring pressing The device includes a spring installed in the spring seat, a ejector rod and a spring seat gland. There is a hole in the center of the bottom surface of the spring seat. A hole is opened at the center of the spring seat gland corresponding to the hole on the bottom surface of the spring seat. The spring seat gland passes Bolts are connected to the top surface of the spring seat. The ejector rod is a rod with a cap on the front end. The ejector rod passes through the spring seat gland and the hole on the bottom surface of the spring seat. The bottom of the rod cap is connected to the spring seat gland. The bearing seats at both ends of the roll are connected, and the spring seat is fixed on the roll box; the main transmission device is installed at the bottom of the frame assembly, and the bevel gear reducer of the main transmission device is placed at the bottom of the roll box assembled by the roll box.

The full-hydraulic down-drive vertical roller mill described in the utility model is characterized in that: the main transmission device adopts the form of motor down-drive, the main motor is an AC frequency conversion speed regulation motor, and a photoelectric encoder is installed at the end of the AC frequency conversion speed regulation motor , used to control the synchronization of two AC variable frequency speed regulation motors. The telescopic universal joint shaft is used to compensate for the length change caused by the change of the opening of the rolling mill.

The full-hydraulic lower-drive vertical roller mill described in the utility model is characterized in that: the tail of the roll gap adjustment hydraulic cylinder is equipped with a displacement sensor, which is used to detect the opening degree of the roll.

The left and right symmetrical two roll chocks are assembled in the roll box and hung in the frame window. The left and right roll gap adjustment hydraulic cylinders drive the balance hydraulic cylinder and the balance auxiliary hydraulic cylinder to assemble the roll chocks and the roll box Move horizontally in the frame window together to adjust the opening of the vertical roller mill.

The roll gap adjustment hydraulic cylinder has automatic width control (AWC) functions: width position control (HAWC) with vertical roll stretch compensation and short stroke control (SSC).

The replacement of the assembly of the roll chock is directly hoisted away by the crane for replacement.

The beneficial effect of the utility model is: it is a lower transmission, separate type, full hydraulic vertical roller mill. It has the advantages of simple structure, stable rolling, light equipment weight, simple structure, allowing reversible rolling, convenient operation and maintenance, etc., and can be widely used in medium and heavy plate rolling mill production lines.

Description of drawings

Fig. 1 is the front view of the full-hydraulic lower transmission vertical roller mill of the present invention.

FIG. 2 is a top view of FIG. 1 .

Fig. 3 is a sectional view along A-A of Fig. 2 .

Fig. 4 is a partially enlarged view of the spring pressing device.

In the figure, 1. Frame assembly 2. Roll chock assembly 3. Roll box assembly 4. Side pressure and balance device 5. Main transmission device 6. Guide beam 7. Exit side guide plate 8. Roll cooling device 9. Rack Roller 10, frame 11, running wheel 12, roll gap adjustment hydraulic cylinder 13, balance hydraulic cylinder 14, balance auxiliary hydraulic cylinder 15, main motor 16, main reducer 17, universal joint shaft 18, bevel gear reducer 19, Roller 20, guide plate 21, frame roller motor 22, connecting shaft 23, frame roller 24, spring pressing device 25, roll box 26, spring 27, ejector rod 28, spring seat gland 29, foundation 30, blank 31, Bearing seat 32, displacement sensor 33, photoelectric encoder 34, spring seat

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

The specific implementation of the present utility model is shown in accompanying drawings 1, 2, and 3. The full-hydraulic lower transmission type vertical roller mill includes frame assembly 1, roll chock assembly 2, roll box assembly 3, side pressure and balancing device 4, Main transmission device 5 , guide beam 6 , exit side guide plate 7 , roll cooling device 8 and rack roll 9 . Frame assembly 1 is installed on the foundation 29, roll chock assembly 2, roll box assembly 3, side pressure and balance device 4, main transmission device 5, guide beam 6, exit side guide plate 7, roll cooling device 8 and frame The roll 9 is installed on the frame assembly 1; the roll chock assembly 2 is formed by fitting the shaft sleeves at both ends of the roll 19 in the chock 31 through the bearings, and the left and right symmetrical two roll chock assemblies 2 are placed on the roll In box assembly 3; side pressure and balance device 4 is installed on the left and right sides of frame assembly 1, side pressure and balance device 4 includes roll gap adjustment hydraulic cylinder 12, balance hydraulic cylinder 13 and balance auxiliary hydraulic cylinder 14, roll A displacement sensor is installed at the tail of the seam adjustment hydraulic cylinder 12, which is used to detect the opening degree of the roll; the main transmission device 5 is installed on the left and right sides of the frame assembly 1, and the main motor 15 of the main transmission device 5 passes through the main deceleration gear of the cylindrical gear. The machine 16 is connected with the telescopic universal joint shaft 17, and the telescopic universal joint shaft 17 is connected with the bevel gear reducer 18, and the output shaft of the bevel gear reducer 18 is connected with the roll 19 in the roll chock assembly 2; The beam 6 is a retractable passive guide beam; the exit side guide plate 7 is installed on the rack assembly 1 on the exit side of the rolling mill for the centering of the billet 30; the roll cooling device 8 is installed above the roll 19 to cool the vertical roll mill The roll 19 of the rack; the rack roll 9 is installed at the entrance and exit of the vertical roll mill, and is used for importing and exporting the steel plate to the vertical roll mill, and the rack roll motor 21 is connected with the rack roll 23 through the connecting shaft 22; the roll box assembly 3 includes Roller box 25, traveling wheel 11 and spring pressing device 24; the roller box 25 is a groove-shaped box with an opening in the front, and the top of the two sides of the groove-shaped box is provided with a walking wheel 11, and the walking wheels 11 are located on both sides of the groove-shaped box Outside the board, the outside of the rear panel of the box body is provided with hinged devices that are hinged to the roll gap adjustment hydraulic cylinder 12, the balance hydraulic cylinder 13 and the balance auxiliary hydraulic cylinder 14. The bearing housings 31 at both ends of the roll 19 correspond to the positions, the running wheel 11 on the top of the box is suspended on the frame assembly 1, the box is located in the window of the frame assembly 1, and the outside of the box is in sliding contact with the frame assembly 1; the roller bearing The seat assembly 2 is placed in the roll box 25 of the roll box assembly 3, half of the roll body of the roll 19 is outside the box, and the bearing housing 31 of the roll chock assembly 2 is in sliding contact with the inner wall of the roll box 25 of the roll box assembly 3. Tightening device 24 presses 31 tight positions of the bearing seat of roll chock assembly 2; There is a hole, and the center position of the spring seat gland 28 has a hole corresponding to the hole on the bottom surface of the spring seat 34. The spring seat gland 28 is connected to the top surface of the spring seat 34 by bolts, and the ejector rod 27 is a rod with a rod cap at the front end. The rod 27 passes through the hole on the bottom surface of the spring seat gland 28 and the spring seat 34, the bottom of the rod cap abuts against the spring seat gland 28, the top of the rod cap abuts against the bearing seats 31 at both ends of the roll 19, and the spring seat 34 is fixed on On the roller box 25; the main transmission device 5 is installed on the bottom of the frame assembly 1, and the main transmission device bevel gear reducer 18 At the bottom of the roll box 25 of the roll box assembly 3.

The main transmission device 5 adopts the form of the lower transmission of the motor, and the main motor 15 is an AC variable frequency speed regulating motor, and a photoelectric encoder 33 is installed at the end of the AC variable frequency speed regulating motor, which is used to control the synchronization of two AC variable frequency speed regulating motors. The telescopic universal joint shaft 17 is used to compensate for the length change that occurs when the opening of the rolling mill changes.

The tail of the roll gap adjustment hydraulic cylinder 12 is equipped with a displacement sensor 32 for detecting the opening degree of the roll 19 .

Claims (3)

1. Full-hydraulic down-drive vertical roll mill, including frame assembly (1), roll chock assembly (2), roll box assembly (3), side pressure and balancing device (4), main transmission device (5), Guide beam (6), outlet side guide plate (7), roll cooling device (8) and rack roll (9); rack assembly (1) is installed on the foundation (29), roll chock assembly (2), Roll box assembly (3), side pressure and balancing device (4), main drive device (5), guide beam (6), exit side guide plate (7), roll cooling device (8) and rack roll (9) Installed on the rack assembly (1); the roll chock assembly (2) is composed of the bearings at both ends of the roll (19) are fitted in the chock (31), and the left and right symmetric two roll chocks The assembly (2) is respectively placed in the roller box assembly (3) on the left and right sides; the side pressure and balance device (4) is installed on the left and right sides of the frame assembly (1), and the side pressure and balance device (4) It includes roll gap adjustment hydraulic cylinder (12), balance hydraulic cylinder (13) and balance auxiliary hydraulic cylinder (14); the main transmission device (5) is installed on the left and right sides of the frame assembly (1), and the main transmission device ( 5) The main motors (15) are each connected to the telescopic universal joint shaft (17) through the cylindrical gear main reducer (16), and the telescopic universal joint shaft (17) is connected to the bevel gear reducer (18) , the telescopic universal joint shaft (17) is used to compensate the length change when the opening of the rolling mill changes, and the output shaft of the bevel gear reducer (18) is connected to the roll (19) in the roll chock assembly (2); The guide beam (6) is a retractable passive guide beam; the outlet side guide plate (7) is installed on the rack assembly (1) on the outlet side of the rolling mill, and is used for the centering of the billet (30); the roll cooling device (8) Installed above the roll (19) to cool the roll (19) of the vertical roll mill; the rack roll (9) is installed at the entrance and exit of the vertical roll mill for importing and exporting the steel plate from the vertical roll mill, and the rack roll The motor (21) is connected to the frame roller (23) through the connecting shaft (22); it is characterized in that: the roller box assembly (3) includes a roller box (25), a running wheel (11) and a spring pressing device (24 ); said roller box (25) is a grooved casing with front opening, and the top of the both sides of the grooved casing is provided with running wheels (11), and the running wheels (11) are positioned outside the both sides of the grooved casing, and the box The outside of the rear panel of the body is provided with a hinged device that is hingedly connected with the roll gap adjustment hydraulic cylinder (12), the balance hydraulic cylinder (13) and the balance auxiliary hydraulic cylinder (14); The front of the two side plates of the body corresponds to the bearing seats (31) at both ends of the roll (19); the running wheel (11) on the top of the box is suspended on the frame assembly (1), and the box is located on the frame assembly (1) Inside the window, there is sliding contact between the outside of the box body and the frame assembly (1); the roll chock assembly (2) is placed in the roll box (25) of the roll box assembly (3), half of the roll (19) The roll body is outside the case, and the chock (31) of the roll chock assembly (2) is assembled with the roll box (3) roll box ( 25) The inner wall is in sliding contact, and the spring pressing device (24) presses and positions the bearing seat (31) of the roll bearing seat assembly (2); the spring pressing device (24) includes a spring seat (34) Spring (26), ejector rod (27) and spring seat gland (28), spring seat (34) bottom surface center position has a hole, spring seat gland (28) center position is corresponding to spring seat (34) bottom surface hole There is a hole at the place, and the spring seat gland (28) is connected to the top surface of the spring seat (34) by bolts, and the push rod (27) is a rod with a rod cap at the front end, and the push rod (27) passes through the spring seat gland (28) ) and the hole on the bottom surface of the spring seat (34), the bottom of the rod cap is connected to the spring seat gland (28), the top of the rod cap is connected to the bearing seats (31) at both ends of the roll (19), and the spring seat (34) fixed on the roller box (25); the main transmission device (5) is installed on the bottom of the frame assembly (1), and the main transmission device bevel gear reducer (18) is placed in the roller box ( 25) Bottom. 2. The full-hydraulic lower-drive vertical roller mill according to claim 1, characterized in that: the main motor (15) of the main transmission device (5) is an AC variable frequency speed regulating motor, and the end of the AC variable frequency speed regulating motor is equipped with The photoelectric encoder (33) is used to control the synchronization of two AC variable frequency speed regulating motors. 3. The full-hydraulic lower-drive vertical roller mill according to claim 1, characterized in that: the tail of the roll gap adjustment hydraulic cylinder (12) is equipped with a displacement sensor (32) for detecting the opening degree of the roll (19) .