Device for removing parts like shaft-bush
(57) Abstract:Usage: when repairing vehicles. The inventive vyrisovyvaet shaft in the hollow shaft 1 cylinder vyrezavanim screw 8, which is located in the center of the bar 7. The shaft 1, the shaft, the screw 8 are located on the same axis, the inner diameter of the rod 1 is larger than the diameter of the shaft, and the diameter of the screw 8 is not larger than the diameter of the shaft. Supressive is made for several cycles. 2 C.p. f-crystals, 1 Il. The invention relates to mechanical work, and in particular to devices used in the repair of vehicles for removing parts like shaft-Bush, mainly of pivot swivel pins ZIL, KAMAZ.Usually for removing parts like shaft sleeve, including pins, use hammers and sledge hammers, which leads to deformation and destruction details.Known hydraulic puller consisting of a hydraulic cylinder, the reference beam, power racks (Semenov C. M. non-standard tool for folding and Assembly works. M Agropromizdat, 1985, S. 288, 236, Fig. 191 b).The disadvantage of this hydraulic puller is the use of the long-stroke cylinder (pump large obja it difficult to install on the front beam, especially when ipressive down pins with conical surface. When installing the cylinder above the pins due to the large size creates a significant tipping point that leads to imbalance, i.e. the emergence of a bully and deformation node, and failure of the device removing.Also known puller containing cylinder, a piston with a hollow shaft (ed.St. USSR N 795932, class 25 In 27/02, 1981).This puller is not suitable for repressive of pins, as the pins are not protruding from raspasovyvalis host part, the capture of which is produced in the known device when ipressive, which provides eccentric rollers.It is also known a device for removing and fitting of smooth shafts containing cylinder, a piston which is connected with a hollow shaft (ed.St. USSR N 1180222, CL 23 P 19/02, 1985).However, in this device the pin is not protruding part and cannot be press despite the more complex seizures and pushers.Closest to the present invention is a device for disassembly of parts like shaft sleeve comprising a cylinder, consisting of a liner, piston, piston rod, the lower and upper lids, as well as thrust, traverse vlahuta the presence of two parallel cylinders, the rods which are connected by an additional transverse beam, the timing of operation of the hydraulic cylinders to avoid distortion, and also sets the rods with the possibility of angular rotation about the axis of removing, as in the device in the process of removing broken alignment. In the prototype supressive done in one stroke and at high initial loads due to length greater than the length of the bolt, and run wypracowania tool is curved misalignment, loss of rigidity and bending tool, which makes it unreliable puller.The objective of the invention is to provide a portable compact reliable device for removing parts like shaft-Bush, mainly puller worn pins, including stuck, without removing the front axle from the vehicle. The technical result is a stepwise process of removing the bolt through the hollow stem vyrezavanim tool. In this case the axis of the extractor and bolt are the same, and a stripper in General has greater reliability at lower dimensions.This is achieved by the fact that the proposed device for removing parts like shaft sleeve (hydraulic puller) consists of hydration the STS, the piston rod of the hydraulic cylinder are hollow, is located along the axis of the king pin and the inner diameter of the rod is larger than the diameter of the bolt. The ends of the rods are mounted in the top cover of the cylinder, and the other two ends passed through the yoke in the Central hole of which is screwed vypressovyvaetsya tool, made in the form of a screw, the diameter of which is not larger than the diameter of the king pin. Rod, pin and bushing arranged in series on the same axis. In traverse can be located in the sleeve, so that the screw is screwed into the sleeve. The ends of the king pin can be installed adapters for centering vypressovyvaetsya of the king pin relative to the hole in the rod, for example a washer or disk with pins included into the holes of the safety cover of the fist (cover removed before removing).A causal relationship between the set of essential features and the technical result is to speed the process of removing, moving the pin (shaft) hollow shaft, screw direct and establishing coaxial with the king pin. Thanks to this constructive execution at the time of moving the pivot departure of minor screw that secures the rigidity of the tool. With the introduction of the bushing in the yoke increases dolgovecnoe, it allows you to quickly switch to a different size viprashivauschego tool, i.e. to universalservice puller. The adapters also increase the reliability of a stripper.The drawing shows a device for removing parts like shaft sleeve, longitudinal section.The device includes a hydraulic cylinder single-acting two-way hollow shaft 1, a sleeve 2, a piston 3, the bottom cover 4 and the top cover 5. The two ends of the parallel rods 6 are mounted in the top cover 5 of the hydraulic cylinder, and the other two end passed through the yoke 7 and fixed by nuts. Through the Central opening of the head plate 7 is screwed in, the screw 8, the diameter of which is not larger than the diameter of the bolt 9. The hollow shaft 1 has a diameter larger than the diameter of the bolt 9. In traverse can be located in the sleeve 10, so that the screw 8 screwed into the sleeve 10. The ends of the pin 9 can be installed adapters, such as a disk 11, the pins which align with the holes of the safety cover, but before vipresume, and the washer 12.The device operates as follows.Before vipresume with the front axle of the car, removed the wheel from the hub and thedistance platter. In the initial position the yoke 7 by screws 8 removed from the ate to the bolt 9. Yoke 7 with the screw 8 is put on draught 6, is fixed by nuts. The screw 8 is brought to a stop at the end of the bolt 9, so that the rod 1 is limited in the case raspasovyvalis site. The working fluid (oil) is supplied into the working cavity of the hydraulic cylinder is known through the fitting. Moves the sleeve 2 cylinder with lids 4 and 5 and the head plate 7 by screws 8 relative to the housing raspasovyvalis site, with vypressovyvaetsya tool screw 8 pushes the pin 9 on the axis and vyrisovyvaet part in the cavity of the rod 1. After the end of the translational motion of the piston 3 spend it return to its original position by the screw 8 (for example, by means of a crank). The process of extrusion of the king pin into the cavity of the stem is repeated several times until the complete removing. To unseat a jammed the bolt valid one-time shock on the screw 8, with a shift sleeve 10 relative to the beam 7, which retains the screw thread.The puller is designed for use in engineering, namely for disassembly nodes vehicles, primarily for removing the pins swivel pins ZIL, KAMAZ.The invention can be implemented using the described or known creditgasoline.Thus, the invention meets the requirement of "industrial applicability". 1. DEVICE FOR REMOVING PARTS like SHAFT SLEEVE containing a cylinder, made in the form of a sleeve with upper and lower covers, piston and rod, two parallel thrust, traverse vypressovyvaniem tool, characterized in that the piston rod of the hydraulic cylinder is made hollow and is mounted along the axis vypressovyvaetsya shaft, yoke has a Central hole, thrust one of its ends fixed to the top cover of the cylinder, and the other two end passed through the yoke, wypracowanie the tool is made in the form of a screw and is mounted in the Central hole of the bar, the inner diameter of the rod is larger than a diameter of vypressovyvaetsya shaft, while the diameter of wypracowania tool is not larger than the diameter vypressovyvaetsya shaft.2. The device under item 1, characterized in that the Central hole beam mounted sleeve threaded screw wypracowania tool.3. The device according to PP.1 and 2, characterized in that the ends vypressovyvaetsya shaft mounted centering adapters.
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.