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.
FIELD: repairing equipment of shops, namely of locomotive depots of railway road transport vehicles.
SUBSTANCE: movable installation includes lifting table having lower wheeled platform and jointly mounted on it upper stand; mechanism for lifting and descending said stand; power hydraulic cylinder mounted on upper stand and communicated by means of hydraulic lines through control unit with high-pressure pump system; clamping device for mounting-dismounting bearing assemblies. High pressure pump system includes tank, pump aggregate, draining pipeline, suction pipeline connecting inlet of pump aggregate with tank. Lifting and descending mechanism is in the form of hydraulic cylinder and it is mounted on lower platform. Pump aggregate is arranged on upper lid of tank and it is in the form of displacement hydraulic pump with electric motor. Filter is mounted in suction pipeline. Control unit is in the form of body having two built-in safety valves, tap distributor and built-in non-return valve. Manometer and additional filter connected with draining pipeline and having pouring hole are connected with control unit. Hydraulic lines are in the form of flexible hoses. Installation is provided with additional power hydraulic cylinder that forms together with connected in parallel main hydraulic cylinder unit of power hydraulic cylinders. Said unit of power hydraulic cylinders is placed on supporting sheet-plate mounted on upper stand with possibility of rotation or removal from upper stand and with possibility of moving in range of length of flexible hoses. Similar cavities of hydraulic cylinders are mutually communicated. Clamping device includes movable and stationary plates mounted respectively on rods and back lids of hydraulic cylinders and designed for joining tie rods of attachment.
EFFECT: enhanced reliability, no-failure operation of installation.
FIELD: assembling of precise units of instruments by pressing-in with use of calibrated effort, by riveting and expanding with use of precession tool.
SUBSTANCE: press includes П-shaped housing; adjustable table mounted in struts of housing and fixed to said struts by means of pins; power hydraulic cylinder with axial motion of rod; rotation drive of precession head; pumping station of hydraulic drive unit. Rotation drive of precession head includes electric motor and belt transmission. Power hydraulic cylinder is rigidly mounted on cross piece of housing and it carries plate on end of spring-loaded rod. Said plate supports two plungers spaced in parallel relative to axis of rod and spring-loaded relative to housing. Pulleys of belt transmission of rotation drive are mounted in casing. The last is secured to plate in such a way that driven pulley is mounted on spindle coaxially relative to rod of hydraulic cylinder and driving pulley is mounted on the same axis as shaft of electric motor placed in cross piece of housing. Driving pulley and shaft of electric motor are kinematically joined by means of other shaft whose one end is mounted in shaft of electric motor and whose other end is joined by means of sliding dowel with opening of supporting axle of driving pulley. Spindle of driven pulley is joined with precession head.
EFFECT: improved design providing enhanced rigidity and working accuracy of press.
FIELD: mechanical assembling procedures, namely equipment for assembling aggregates of caterpillar transport vehicles, for example semiautomatic machines for assembling caterpillar tracks.
SUBSTANCE: in apparatus for assembling chain stop plate is mounted in such a way that its working surface is arranged in plane normal relative to pressing in plane. Upper non-working portion of stop plate at side of ending pressing-in cycle is inclined in horizontal plane to side from rotor type conveyer. Lower non-working portion of plate in vertical plane is inclined relative to vertical line to side from rotor type conveyer. Stop part of pusher exceeds diameter of head of pin. Rigid guides are arranged in plane parallel to pressing-in plane; said guides are in the form of roller tables with pitch between rollers of roller table less than pitch of chain links. Guides embrace upper branch of conveyer from downwards and branch of chain from upwards at least along the whole length of it. Drive unit is provided in addition with back-stroke mechanism. Splitter is in the form of plate that is jointly mounted in its mean portion along lateral sides on supporting surface in horizontal plane along motion direction of conveyer for moving pins and it forms two-arm lever. One end of said lever is spring-loaded from downwards with possibility of engaging with dents of conveyer for moving pins. Other end of said lever is Г-shaped one and it may engage by free end with pins on inclined trough. Horizontal axes of articulation joints in vertical plane are provided with holding levers rigidly joined with plate and mounted with possibility of engaging with pins on inclined trough.
EFFECT: enlarged manufacturing possibilities, enhanced operational reliability.
FIELD: mechanical engineering.
SUBSTANCE: mandrel has guide, working part made of deformable teeth, calibration parts, and diverging groove made in the guide and working parts. The expanded end of the groove is in coincident with the origin of the guiding part. The groove that ends at the last deformable tooth of the working part has radius-shaped cross-section.
EFFECT: enhanced quality of the press joint and expanded functional capability.
FIELD: machine engineering, namely equipment for dismounting press-fit joints, possibly restoration of electric machines.
SUBSTANCE: apparatus includes housing with platforms for horizontal and vertical motions. Part to be dismounted is placed on horizontal motion platform and it is fed to stripping mechanism. The last is joined with vertical motion platform by means of fastening members and it is provided with adjusted grips supporting heating members with possibility of their axial movement. Heating members are in the form of nozzles for alternating feed of hot and cooled air.
EFFECT: reduced axial errors between dismounted part and stripping mechanism, lowered efforts for stripping parts.
5 cl, 5 dwg
FIELD: mechanical engineering.
SUBSTANCE: device comprises the mechanism for locking pressed parts made of an extensible sleeve. The first power hydraulic cylinder is used for moving parts and can rotate between two vertical unmovable pillars. The pillars are pivotally connected in pair with movable vertical pillars through the top and bottom horizontal clamps. The extensible spring-loaded stop with the drive and the first hydraulic cylinder are axially aligned. The first power hydraulic cylinder receives the second power hydraulic cylinder whose rod is provided with first center and spring. One end of the spring co-operates with the piston, and other end of the spring co-operates with the face of the extensible sleeve. The extensible stop receives the second center with the stack of plate springs that is coaxial to the first center. The bottom clams are provided with a lifting-rotating device.
EFFECT: reduced labor consumption for making and simplified structure.
1 cl, 2 dwg
FIELD: devices designed for simplifying procedures of assembling/disassembling units.
SUBSTANCE: crank stripper includes cross piece 1 supporting power mechanism in the form of one-way telescopic hydraulic cylinder 2 having thrust rod 3 for shaft of crank 14; mechanism for forced closing of foots having cylindrical discs 8, 9, paired plates 10 and double-arm levers 4,5. One arm is used for engaging with crank; other arm of is cone one and it may rest upon lateral surface of cylindrical disc secured to lateral side of cross piece. Double-arm lever whose arms are mutually inclined by obtuse angle is jointly mounted through paired plates in center of disc. Articulation joint of lever is mounted in edge portion of second lever arm on line of inner surface of first lever arm.
EFFECT: intensified clamping of part by foots, enhanced efficiency, lowered cost price of working operations.
FIELD: mechanical engineering.
SUBSTANCE: method comprises gripping the part to be dismounted and applying axial load by means of at least two ties and, e.g., hydraulic cylinder. The rod of the hydraulic cylinder cooperates with the face of the shaft. The ties are interconnected via a plate opposite to the end of the part to be dismounted. Each of the ties is provided with the eccentric groove. The ties are set in the openings in the part to be dismounted for permitting engagement by their step defined by the eccentric groove. Between the wall of the opening of the part to be dismounted and each tie is sickle-shaped bushing member. The hydraulic cylinder abuts against the plate so that to provide relationships D1 ≤ D2, b ≥ H, e = h, where D1 is the outer diameter of the tie, D2 is the diameter of the opening in the part to be dismounted, b is the width of the eccentric groove, H is the thickness of the part, e is the eccentricity of the groove with respect to the axis of the tie, and h is the maximum thickness of the sickle-shaped bushing member.
EFFECT: expanded functional capabilities.
1 cl, 2 dwg
FIELD: machine engineering, namely mechanical strippers.
SUBSTANCE: stripper includes traverse bar with grips, screw having two outer threads with different pitches; main detachable sleeve mounted by thread whose pitch is less than that of said screw; additional threaded sleeve mounted by second thread of said screw; holder embracing both sleeves, fixed relative to them in angular direction and resting by its inner shoulder upon end of main sleeve. Inner shoulder is formed on one end of holder; other open end of holder is arranged in through opening of traverse bar and it is rigidly joined with said bar. Threads of powerful screw have similar sign; additional sleeve has outer flange spaced from open end of holder by interval determined according to relation K = B1(H2/H1 - 1), where K - interval between outer flange of additional sleeve and open end of holder; B1 - displacement (caused by main sleeve) of part stripped by means of stripper; H2 - thread pitch of additional sleeve; H1 - thread pitch of main sleeve. Sleeves are mutually spaced by interval T exceeding value of mutual convergence of sleeves.
EFFECT: simplified usage of stripper.
FIELD: railway road machine engineering, possibly repairing of railroad machines.
SUBSTANCE: press includes frame having base and two struts mutually joined by means of two columns; working cylinder mounted on one of said struts; force and supporting traverse bars with rollers. Said traverse bars are arranged between struts of press frame and they are mounted with possibility motion on rollers along columns of power frame. Force traverse bar is mounted with possibility of fixing it to columns.
EFFECT: enlarged manufacturing possibilities, improved quality of combining wheel pairs, simplified design of press.