Stand for the assembly and disassembly of pillows rolls
(57) Abstract:Usage: in the field of rolling operations, namely devices for Assembly and disassembly of pillows rolls. The inventive stand is equipped with hydraulic cylinders capture nuts, rods are placed in the hollow rod cylinders mounting and Dismounting of pillows and wrenches, are equipped with two shoulders swivel levers, the latter made hinge. Each wrench is provided sash and spring-loaded stops, kinematically connected with the control sleeve. Movable platform 3 latches 4 is equipped with hydraulic cylinders move performed a multi-way, and the tabs 4 are rods of the hydraulic cylinders 5, also performed a multi-way. The kinematic connection of each of the valves with the control sleeve is made in the form of a rocker arm communicating at one end with a wing, and the other with the control sleeve by means of a spring-loaded stop. 1 C.p. f-crystals, 2 Il. The invention relates to rolling production, namely, devices for Assembly and disassembly of pillows rolls.Known stand for disassembly and Assembly of rolls with bearings (pillow), sostojashie is led by the rotation of the auxiliary drive. However, due to the lack of offline travel drive trucks pillows and availability of manual operations hitch - recepce truck wrenches with trucks pillows stand has low productivity and narrow technological capabilities. (Chub E. F. Oversized pillows rolling. M; mechanical engineering, 1976, S. 239).Known stand containing a movable frame with a platform for mounting the shaft, coaxially guides located on both sides of the movable frame carrying the movable sled with the gripping elements in the form of cylinders, and the carriage with hydraulic cylinders mounting and Dismounting of pillows and wrenches, are equipped with two shoulders hinge arms for gripping nuts .However, this stand has limited technological capabilities, as provided by Assembly and disassembly of pillows rolls only one size.The purpose of the invention is to create a stand with advanced technological capabilities at the expense of Assembly and disassembly of pillows of various sizes.To do this, stand for the Assembly and disassembly of pillows rolls, comprising a movable frame, coaxially guides, supporting mobile platforms with clamps, and the soup is AMI for gripping nuts, equipped with hydraulic cylinders capture nuts, rods are placed in the cylinders mounting and Dismounting of pillows, made hollow, and is equipped with control bushings; interacting with two shoulders articulated levers made spring-loaded, each of the wrenches are equipped with valves and spring-loaded stops interacting with the control sleeve, with the movable platform with clamps supplied with hydraulic cylinders move performed a multi-way, and the tabs are cylinders made as well multi-way.In addition, the kinematic connection of each of the valves with the control sleeve is made in the form of a rocker arm communicating at one end with a wing, and the other with the control sleeve by means of a spring-loaded stops.In Fig. 1 shows the stand; Fig. 2 is a view along arrow a in Fig. 1.The stand is composed of a movable frame 1, coaxially of the guides 2, located on both sides of the moving frame and movable bearing platforms 3 with 4 tabs, hydraulic cylinders 5 and calipers 6 cylinders 7 mounting and Dismounting of the cushions 8 and wrenches 9, equipped with two shoulders hinge arms 10 for gripping nuts 11.The kinematic connection of each of the valves 16 with the control sleeve 15 is made in the form of a rocker arm 18 that communicates at one end with a wing, and the other with the control sleeve by means of a spring-loaded stop 17.For lifting and lowering the platform provides for a combined actuator, consisting of a hydraulic cylinder 19 and the motor 20 with the gear pair and the anchor nut. In addition, the movable platform 3 with the tabs 4 are supplied by the hydraulic cylinders 21 movements made multi-way, and the tabs 4 are rods of the hydraulic cylinders 5, also performed a multi-way.For movement of the carriage 6 with wrenches 9 provided by the hydraulic cylinders 22 and to rotate the ratchets 9 - motors 23.For mounting and Dismounting of the pillow 8 is provided with the thrust 24 with holes, rigidly United with wrenches 9.Stand dismantling support roll works as follows. Roll in what atom, to the axis of the clamps 4, made in the form of cylinders 5, mounted on the platform 3, coincident with the axes of the holes to grip on the pillow 8.The hydraulic cylinder 19 gland platform rises until it stops in a barrel roll. From the motor 20 through the tubular couple of anchor nut rises until it stops in the roll barrel to reset the pressure in the hydraulic cylinder 19 of the lifting frame.Calipers 6 wrenches 9 under the action of hydraulic cylinders 22 are moved toward the axis of the moving frame to contact the ends of the cylinders 7 installation and dismantling of pillows with the ends of the roll.Under the action HZ 12 by diversion of his rod back is the coverage of the nut teeth two shoulders of the levers 10. Included drives 23 wrenches 9 and the teeth of the levers 10 are in the slots of the nuts 11. Enables the actuator 23 of rotation of the ratchets 9 on breakout and nuts 11 go with thread roll inward wrenches 9.When the extension rod of the hydraulic cylinder 12 and the impact of the control sleeve 15 on the two shoulders of the hinge spring arms 10 is the release of the nuts 11 on the coverage of these levers, and the feedback control sleeve 15 on the spring-loaded lugs 17 is sinking the last and closing STV is S="ptx2">Calipers 6 wrenches 9 HZ and 12 are discharged from the axis of the movable frame 1 in a position in which the same axis clamps 4 cylinders 5 and the axis of the rod holes 24 calipers 6. The latter is provided with automation.The cylinders 5 tabs 4 are inserted into holes pillows 8 through the corresponding holes of the rods 24.For Assembly - disassembly pillows back-up rolls of various sizes are used multi-way hydraulic cylinders, providing a different length depending on the sizes of the progress of the clamps 4, made in the form of cylinders 5.Next, select the stroke of the hydraulic cylinders 7, and then the hydraulic cylinders 22 move the calipers. After returning multi-cylinders 21 3 platforms together with removed from the roll pillows 8 in the source, far from the position of the moving frame are 4 tabs from the holes of the cushions 8 and rod 24 by retracting cylinders 5, freeing the latter.The cylinders 21 of the moving platform 3 is made of a multi-way to achieve the same purpose - maintenance of rolls of various sizes.Calipers 6 wrenches 9 discharged by the hydraulic cylinders 22 from 3 platforms in Isha disassembly and Assembly, or after inspection are used for Assembly with peretochennym roller.The design of the stand provides automation of technological operations. The support roll Assembly with pillows is in the reverse sequence.The introduction of the proposed technical solution will solve the problem of maintenance of pillows rolls of various sizes. 1. STAND FOR the ASSEMBLY AND DISASSEMBLY of PILLOWS ROLLS, comprising a movable frame, coaxially guides located on both sides of the moving frame and movable bearing platforms with clamps, and calipers with hydraulic cylinders mounting and Dismounting of pillows and wrenches, are equipped with two shoulders hinge arms for gripping nuts, characterized in that it is equipped with hydraulic cylinders capture nuts, rods are placed in the cylinders mounting and Dismounting of pillows, made hollow, and is equipped with control bushings, interacting with two shoulders articulated levers made spring-loaded, and each of the wrenches are equipped with valves and spring-loaded stops interacting with the control sleeve, with the movable platform with clamps supplied with hydraulic cylinders move performed a multi-way, and the tabs ablauts the nematic connection of each of the valves with the control sleeve is made in the form of a rocker arm, communicating at one end with a wing, and the other with the control sleeve by means of a spring-loaded stop.
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.