SU893502A1 - Stand for moulding onto rolls film lubrication bearings and dismounting them - Google Patents

Description

(54) STAND FOR INSTALLATION OF BEARINGS

LIQUID FRICTION ON HIDING ROLLS AND DISMANTLING THEM

one

The invention relates to mechanical assembly work, in particular to equipment for mounting and dismounting liquid friction bearings on mill rolls.

According to the main author. St. No. 475248 is known a stand for mounting bearings for 1-friction rolling mill rolls and dismounting them, containing a table mounted with a frame with movable prisms for mounting a roll, grippers of pillow bearings and mounted in the guides of a drive support with a device for pressing and a wrench, as well as drive slides on which are placed the claws and the caliper, while the grips and the caliper are placed on the sled T.

However, the known stand does not provide an increase in productivity.

The purpose of the invention is to increase productivity.

This goal is achieved by the fact that the stand of mounting the liquid friction bearings on the mill rolls and dismantling them, contains a table mounted on the frame with movable prisms for mounting the roll, grippers

PODSUCHNIKOV ducks and mounted in the guides of the drive caliper with a depressing device and a wrench, as well as the drive slide, on which the clamps and the caliper are placed, are equipped with a lock, crammed with a pin with a pin and a lock of its position, while the biscuit is mounted on the end of the sleeve. with the possibility of relative movement and interaction with the bushing sleeve of the roll to be disassembled.

ten

FIG. 1 shows the construction of a stand for mounting bearings; in fig. 2 - caliper with a lock on the wrench in the working position; in fig. 3 15 lock; in fig. 4 - caliper in the position of screwing the support parts of the support.

Claims (1)

The stand contains guiding frames 1 and 2 mounted on the frame, along which the slide 3 is mounted with the help of a hydraulic cylinder 4. 4. On. the slide 4 is fitted with a caliper 5 with a depressing device 6 and a wrench 7 moving along the slide 3 with the help of a hydraulic cylinder 8. There are pins 9 for connecting during the repressing of the support caliper 5 with the bolts 3. 9. There are no hydraulic diameters from the hydraulic cylinders for the support 3 with the bolts 3. made in the form of a yoke 11, pawl 12, a pulley with a shaft 13 and a sleeve 14 mounted on a rack 15 of a support 5. On the slide 3 for engagement with the bearing cushion 16 there are grips 17 having vyzhizzhny pins 18 for inserting them into the side holes pillows 16 podishpnika. A hundred 19 is mounted on a hinge with movable mounts 20 for installing a roll to be dismounted 21. The prisms 20 move from hydraulic cylinders 22. To align the keyway in the tapered sleeve 23 of the bearing with the key 24 located on the roll 2, there is a lock made in the form of cracks 25 with pin 26 and latch 27 in its position. The cracker 25 is installed at the end of the sleeve 28 of the wrench 7 with relative movement and interaction through the pin 26, the nozzle 29 and the sleeve 30, connected with each other by the keys 31 and 32, with the tapered sleeve 23. Stand for mounting the liquid friction bearings on the valgsi rolls and dismounting their works as follows. When mounting bearings with cushions 16 on the necks of the roll 21, the latter is installed with a crane on the prisms 20 of the table 9, and on the slide 3, which is in extreme positions, they install the pillows 16 with the fluid-friction bearings assembled in the shaft. With the aid of hydrocylanders 7.1, the roll 21 is horizontally aligned along the axis of the cushions 16. The lock is placed in the working position and fixed. By the hydraulic cylinder 8, one of the supports 5 is advanced. The hydraulic cylinders 10, which are connected hingedly to the collar And, which through the dog 12 is connected to the sleeve 28, rotating relative to the sleeve 14, align the lock pin 26 with the hole in the nozzle 29 and further rotation of the wrench 7 produce a preliminary orientation of the groove of the conical sleeve 23 relative to the ejector pin 24 21. With the help of hydraulic heads 4, one of the sleighs 3 from the extreme position is fed forward, and the cushion 16 with the taper bushing 23 located in it slides onto the conical necks of the roll 21. Allow them to be manipulated by hydraulic cylinders 10 intramural groove in the conical sleeve 23 with the key 24 on the shaft 21. .ke Analop1ChSh1ge operation are produced by other slide carriage 3 and 5. Then, 5 calipers retracted extreme position and a lock is transferred into the inoperative position. On the neck of the roll 21 install locking dety and 33 bearings. After that, one of the hydraulic cylinders 4 of the slide 3 serves a strictly metered pressing force in order to relieve the thread in the locking parts 33. Not the force of the press-fit is applied to the support position 5 from the extreme position. Move the pawl 12 to the position corresponding to the screwing, then . the groove of the locking part 33, the manipulator with the hydraulic cylinders 8 and 10, the plant and the key 34, closed) {on the sleeve 28, and the wrench 7 tighten the locking part 33. After screwing the locking part 33, the pressing force from the hydraulic cylinder 4 is removed, the extension clamps 18 of the grips 17 leads out of the openings of the cushion 16; the caliper 5 on the slide 3 is retracted to the extreme position. The screwing of the locking part 33 on the other side of the roll is performed in the same sequence. The installation of pillows with bearings on the neck of the roll ends and the roll is removed from the stand by a crane. The removal of bearings with pillows from the necks of the roll is made in the following sequence. The roller 21 with the bearing pillows assembled on its necks is mounted with a crane on the prisms 20 of the table 19. The hydraulic cylinders 4 are connected with the slide 3 so that the pillows 16 can be mounted on the corresponding slots of the slide 3. Then, using hydraulic cylinders 22, roll the roller 21 and lower the pillows 16 mounted on the slide 3. After that, retractable pins 18 are inserted into the side openings of the pillows 16. With the hydraulic cylinders 4, one of the tapered bushings 23 is pressed to press onto the tapered roller 21. Then the caliper 5 is brought in, ensuring the key 3 hits 4, located on the sleeve 28, into the groove of the locking part 33. The pawl 12 is turned into a position corresponding to the unscrewing position, and the locking part 33 is unscrewed. After the unscrewing is completed, the caliper 5 is retracted to the extreme position and the force of the pressurized by the hydraulic cylinder 4 is relieved. The locking parts 33 are removed from the neck of the roller 21, after which the caliper 5 is moved to a position in which it engages with the rails 3 by means of pins 9. Then the taper bushing 23 is pressed out to the taper neck of the roller 21. The pressing force is At the same time, the pressing-out device 6, which acts on the end face of the roll 21, and the hydroscypine 4, acting through the grippers 17 and the pins 18 on the pad 16. Both forces are summed up, and the pad 16 through the insert 35 acts on the collar of the sleeve 23. As a result, pulling off the tapered bushing 23 from the tapered neck shaft 51 to 21. After that, the hydron hydride 4 slide 3, together with the bottom 16 and the bearing, is retracted to the extreme position. Expansion pins 18 are removed from the holes 11 of module 1, which are then removed from the slide 3 by a crane. Then, in a similar manner and in the same sequence, the airbag is removed and the pillow is removed from the opposite end of the roller. At this point, the dismounting of the bolsters from the necks of the roll is completed. The proposed stand for the installation of bearings friction on rolling. rolls and their dismantling in comparison with the known ones allows to reduce the time for installation under the bale, improves working conditions on the stand from the point of view of safety engineering. The annual economic effect from the introduction will be 8575 rubles. The invention The stand for mounting the bearings of friction on the mill rolls and dismantling them by ed. St. No. 475248, characterized in that, in order to increase production, it is provided with a lock made in the form of a cracker with a pin and a lock of it, while the cracker is installed on the end of the wrench sleeve with the possibility of relative mixing and interaction with the tapered bushing of the roll to be disassembled. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 475248, cl. In 23 R 19/02, 1971 (prototype). N Srig.G. 27 phage. C 1311 L .4 i