SU1258533A1 - Bed for assembling and disassembling roll chocks - Google Patents

Description

The invention relates to rolling production, in particular, to devices for assembling and disassembling sets of rolls from a rolling mill stand, and can be used in wide strip mills for hot and cold rolling.

The purpose of the invention is to increase the productivity of the stand and simplify its design while reducing the size of the bench.

FIG. 1 shows the stand, top view; in fig. 2 is a diagram of the arrangement of the rolls anchors

The stand consists of stationary guides 1 and 2, along which carriages 3 and 4 with depressions 5 on supporting surfaces move, supports B and 7 with grippers 8 and wrenches 9 of clutch puller 10 having a mechanism

11 Orientation, gripper arms

12 clutches and support rollers 13 for a clutch, a turning mechanism 14, a carriage disengagement mechanism 15 with a movable frame 16 with platforms 17 for mounting rolls 18 and brackets 19

with spring-loaded clips 20, in conjunction with the lower plane t №1 pillows.

The movement of the movable frame 16, the carriages 3 and 4, the supports 6 and 7, is carried out by hydraulic cylinders 21-23, respectively. The grippers 8, the arms of the grippers 12 of the coupling are driven by hydraulic cylinders 24 and 25, respectively.

The booth works the following way.

In the initial position, the carriages 3 and 4 and the supports 6 and 7 are retracted to the extreme positions from the movable frame 16, the support 6 is turned in such a way that the axis of the clutch puller 10 coincides with the longitudinal axis of the stationary guides i and 2, the hooks of the grips 12 of the coupling and the clamps 8 divorced.

The replaceable work roll 18 with the cushions 16 and the clutch 27 is placed on the platform 17 of the movable frame 16, the lower planes 28 of the cushions 26. rest on the spring-loaded clips 20 of the arms 19, which prevents the cushions from turning.

The carriages 3 and 4 are driven by hydraulic cylinders 22 and 23 to the movable frame 16 and due to the guaranteed clearance between the supporting surfaces

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the lower and lower planes 28 of the pillows 26 plant under the pillows, and the arms 19 with the spring-loaded latches 20 enter into the response depressions 5 of the carriages 3 and 4. The grippers levers, 12 of the coupler clutch 10 are reduced by 1shorts 25, the mechanism 15 is turned on uncoupling. The support 6 is retracted by the cylinder 22 to the extreme position from the movable frame, the carriage 3 remains under the roll cushion, the levers of the clutches 12 clutch pulls the clutch onto the support rollers 13. In the retracted position, the rotation mechanism 14 rotates the support 6 by 90 and the axis of the latter aligns with the longitudinal axis of the stationary direction nmcih 1.

The cylinder 22, the caliper 6 is guided to the movable frame 16, the claws 8 are collapsed by the cylinders 24, the wrenches 9 are turned on and the nuts securing the inner ring of the bearing are unscrewed. Then, with cylinders 22 and 23, the supports 6 and 7 and the carriages 3 and 4 are retracted from the roll, the grips B pull off the pads 26 to the carriages 3 and 4. The disassembly process is over.

In the process of disassembling the roll to another platform, a replacement roll is installed by the crane to install the roll of the movable frame 16. B1a1yuchayetsya cylinder 21 movement of the movable frame 16 and the disassembled roll swings out of the working area, and shifted; The trimmed moves to the assembly position.

The roll assembly takes place in the inverse sequence. In the process of assembling a polished roll, the disassembled roll is removed by a crane and in its place a worn roll assembled with cushions and a clutch is placed.

Thus, all crane operations are combined with the assembly / disassembly process in time, i.e. the process becomes uninterrupted, which improves performance.

In addition, the absence of mechanisms on a movable frame and its movement to fixed positions with a hydraulic cylinder from one stop to another, simplifies the design of the stand and ensures accurate installation of the frame with rollers relative to the axes of the supports and carts.

Editor O. Golovach

Compiled by J. L mov Tehred A. Kravchuk

Order 5061/10 Circulation 518 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Design, And

FIG. 2

Proofreader S. Shekmar

Claims (3)

1. STAND FOR ASSEMBLY AND DISASSEMBLY OF PILLOWS OF ROLLING ROLLS, comprising a movable frame with platforms for installing a replaceable and replacing rolls in coaxial guides located on both sides of the movable frame, on which on one side of the frame there is a rotary caliper carrying a sleeve puller, support rollers, mechanism orientation, wrench and grips, 'and on the other hand - a support with a wrench and grippers and placed symmetrically on the moving frame on one side in front of the clutch, and on the other hand. a carriage wrench with supporting surfaces, characterized in that, in order to increase the performance of the stand and simplify its design while reducing the dimensions, the movable frame is made with cantilevered protrusions and spring-loaded cushion clips, and the carriages are mounted behind! the barytes of the movable frame and have depressions on the supporting surfaces made in response to the cantilevered protrusions, said protrusions being mounted on the outer sides of the frame symmetrically to the longitudinal axes of the platforms for _β setting the rolls. SS 2. Stand pop. 1, characterized in that in each cantilevered protrusion a vertical groove is made in which a spring-loaded retainer is installed, interacting with the supporting surface of the pillow. 3. Stand pop. 1, characterized in that the carriage facing the clutch puller is mounted on these rails, and the other carriage is mounted on an adjacent caliper. 1 1258533