Stand for the assembly of the nodes of large parts

 

(57) Abstract:

Use: in the production of cold-rolled pipes when changing calibers rolls of cold rolling mills pipes. The inventive stand comprises a frame 1 on which it is resting device 2 for installation of a covered part of the roll with caliber items covered on the bandages. Device for moving and planting cover parts are made in the form installed on the console tides 3 bed 1 on both sides of the device 2 and moved from the actuator 4 console centering bushing 5. On the console tides base 1 installed movable centers 6. On the frame 1 on opposite sides of the device for installation of a covered part has two movable beam 9, which in the upper half of the fixed inductors 10, carrying out the heating of the conical part of the gear rims. In the sleeve 5 with holes 11 for mounting a monitoring device 12, the recording temperature. 3 Il.

The invention relates to the production of cold-rolled pipes and relates to improvements in accessories for the Assembly of the nodes of large parts, mainly the caliber of the rolls of the mill Ho is Holocene reliable connections covered parts mainly consisting of two parts and roll caliber, covering parts of the toothed roller, as well as reducing wear of the compounds obtained.

The problem is solved in that the stand for the Assembly of the nodes of large parts, mainly the caliber of the rolls of cold rolling mills pipe, characterized by the fact that it contains is placed on the frame of the device for installation of a covered part, means for centering the movable centers, the device for moving and planting covering parts covered, made in the form located on both sides of the device for installation of a covered part a console centering bushings installed with the possibility of reciprocation of the actuator, two are located on either side of the device for installation of a covered detail with the ability to move the head plate attached to them in the upper half of the coaxial console centering bushings inductors, each of which is made in the shape corresponding to the heated portion of the workpiece, and control devices for the recording of temperature covering parts and management, while the console C is constructive run stand for the Assembly of the nodes of large parts, mainly, caliber rolls of cold rolling mills pipes, provides the connection of a covered part, consisting of two parts and roll caliber with covering parts - gear tires.

This is achieved through multiple sequential portions of the heating conical surfaces of one sector and the other tires to the required temperature, which became possible due to the proximity of the heating elements - inductors to places draping heated tyres on landing cervical roll and caliber, placing them concentric conical bands and execution of the inductors in the form corresponding to the form of the heated part of the covering part.

Running in console centering bushings holes for installation of control devices, recording temperature, allows to measure the temperature of the tires and prevent from overheating, which is very important for bands toothed sectors to avoid the vacation hardened teeth.

The invention is illustrated graphics, where: Fig. 1 shows a General view of the stand for the Assembly of the nodes of large parts of Fig. 2

section a-a in Fig. 1, in Fig. 3 Ukr who's details mainly, caliber rolls of cold rolling mills pipes, comprises a frame 1 on which it is resting device 2 for installation of a covered part of the roll with caliber, and a device for moving the landing grasping parts covered - bands having a toothed sectors with a conical outer surface, roll with the caliber.

The device for moving the landing covering parts made in the form installed on the console tides 3 bed 1 on both sides of the device 2 and moved from the actuators 4 console centering bushing 5. On the console tides bed there is also movable centers 6. On console centering sleeve 5 set the bandages, made in the form of toothed sectors, which are fastened by means of bolts 7. Drives 4 console centering bushings made in the form of hydraulic cylinders mounted on the ends of the frame coaxially with the centers 6. On the frame 1 on opposite sides of the device for covered part has two movable from the actuator 8 of the bar 9, which in the upper part of the fixed conical sector inductors 10, carrying out the heating of the conical part of the gear rims. Drive traverse movement is made in the form of hydrocele arousih temperature of the tyres. Roller 13 and the caliber 14 form two boarding cervix, which are two of the band 15 with toothed sectors.

The control of heating, installation and dismantling of the connection of the roll with calibre provides automatic electronic system (not shown).

In the original position "B" device for planting tires apart. Roll 13 and 14 gauge installed on the device 2 and is fixed in centres 6. On console centering sleeve 5 install conical trusses 15 with toothed sectors and fastened by bolts 7. The head plate 8 located on the inductors, the hydraulic cylinders 8 are moved to the end position of the thrust bolts 7 console centering sleeve 5. Provides alternate heating of the conical part of both bands 15 to the required temperature. Due to the fact that the inductors are made in the form of a sector of a hollow truncated cone and placed concentric conical bandages, heating the latter happens evenly.

Check the temperature control devices 12 installed in the holes 11 console centering bushing 5. Then bandages 15 with toothed sectors with 4 cylinders that move the centering sleeve 5, serves on the boarding cervical s 4 simultaneously discharged into the initial position. Beam 9 with mounted inductors 10 is disposed in its initial position by the hydraulic cylinders 8. Bond roll 13 with 14 gauge occurs simultaneously on both sides by the cooling of the tires due to the receipt of tension.

After installation of the roll 13 with 14 gauge in centers 6 includes an automatic control system for heating, actuators move and control for Assembly and disassembly. Removing the bandages with gear sectors mounted on the stand of the assembled roll is carried out in reverse order. After removing the bandages replaced the gauge and then the cycle repeats.

The above stand for the Assembly of the nodes of large parts, mainly rolls of cold rolling mills, helps to ensure the durability of the roll with caliber and durability of the roll caliber and gear tires during Assembly and disassembly due to uniform heating of the tyres to the required temperature, which is determined by the control devices.

The device also allows you to reduce the time for reloading, to ensure the mechanization of labor-intensive replacement of any caliber.

Stand for the Assembly of the nodes of large parts, mainly the caliber of the rolls of the mill Ho is covered in detail, means for centering the movable centers, the device for moving and planting covering parts covered, made in the form located on both sides of the device for installation of a covered part a console azentrius bushings installed with the possibility of reciprocation of the actuator, two located on either side of the device for the covered items with the possibility of reciprocating movement of the beam attached to them in the upper half of the coaxial console centering bushings inductors, each of which is made in the shape corresponding to the heated part of the covering part, as well as the control devices for the recording of temperature covering parts and management, with console centering sleeves are made with holes for the insertion of the aforementioned control devices.

 

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