Device for pressing bearings on wheel pair
(57) Abstract:The invention relates to a mechanical Assembly production. On the basis of the installed two tables that have zapressovki, each of which is made in the form of a hydraulic cylinder with a spring-loaded center of the restraint system bearing device and moving it in the form of a rod of the hydraulic cylinder. The cylinders of zapressovkoj are directed towards one another. Between the tables is the site of installation of the pair of wheels in the form of a rail managed pedal stops. Between the rails installed telescopic hydraulic cylinders lift wheel pair. The cylinder of each zapressovka also made telescopic with extra stock, on one end of which is equipped with a restraint system bearing, and the other fixed stop to limit the movement of the rod. Each telescopic cylinder lift is performed with the inner plunger with the piston, the area of which is 2.5 times smaller than the area of the external piston rod. The result is a simplification of the design of the facility, reducing its size, improving Assembly performance, as well as the accuracy and quality of collected products. 1 C.p. f-crystals, 5 Il. A device for mounting bearings on a pair of wheels of railway carriages, containing mounted on the stand base with the pressing mechanism in the form of a cylinder placed on the end of his shaft pressing element, the node setup wheel axis located between the racks and the cooling unit inner rings (SU 1140926 And 23.02.1985, B 23 P 11/02).The disadvantages of the known devices is the complexity of the design due to the presence of bulky feed system coolant to the bearing ring, and the low productivity of the Assembly and the inconvenience of operation due to contamination of the workplace and collect node with excess oil for cooling.Closest to the invention is a device for pressing bearings on wheel pairs containing base with two symmetrically arranged on the sides of tables, which is installed zapressovki, site installation, a pair of wheels disposed between the tables, lift wheel pair in the form of two hydraulic cylinders and the remote control device control zapressovka the device and moving it in the form of a rod of the hydraulic cylinder, while the cylinders of zapressovkoj are directed towards one another (US 3916499, 04.11.1975, B 23 P 19/02).The disadvantage is the impossibility of providing a separate supply of rod-pinola each cylinder at different speeds and pressing forces, as well as alignment of product surfaces, resulting in reduced performance of the Assembly.Technical problem which the claimed invention is directed, is to simplify the design of the facility, reducing its size, improving Assembly performance, as well as the accuracy and quality of collected products in alternate rolling bearings on a pair of wheels.The problem is solved due to the fact that in the known device for pressing bearings on wheel pairs containing base with two symmetrically arranged on the sides of tables, which is installed zapressovki, site installation, a pair of wheels disposed between the tables, lift wheel pair in the form of two hydraulic cylinders and the control device controls operation of zapressovkoj, each of which is made in the form of a hydraulic cylinder with a spring-loaded center device withheld is Evsikov are directed towards one another, according to the invention the hydraulic cylinder of each zapressovka made telescopic with additional rod, one end of which is mounted restraint system bearing, and the other fixed stop to limit the movement of the rod, the node setup wheelset made in the form of rail managed pedal stops, the lift cylinders of the pair of wheels made telescopic and located between the said rails, and pedestals fixed in the vertical plane.Each telescopic cylinder lift is performed with the inner plunger with the piston, the area of which is 2.5 times smaller than the area of the external piston rod.In Fig.1 shows a General view of the installation for pressing bearings on wheel pairs:
in Fig.2 - the same, top view;
in Fig.3 - section a-a in Fig.1;
in Fig.4 - cut cylinder of zapressovka;
in Fig.5 - section cylinder lift.Installation for mounting bearings on a pair of wheels comprises a base 1 with two symmetrically arranged on the sides of tables 2 and installed zapressovkoj 3, each of which is made in the form of a hydraulic cylinder 4 with the spring loaded center stake 7 cylinders 4 are directed towards one another. Between the tables is the site of installation of the pair of wheels 8. In addition, the unit is equipped with lift 9 of the pair of wheels 8, are made in the form of two hydraulic cylinders 10 and 11 remote control device to control the work of zapressovkoj 3. Tables 2 fixed in the vertical plane, the node setup wheel, a pair of 8 made in the form of the rail 12 with the lugs 13 controlled by the pedal 14. The hydraulic cylinder 4 zapreshaushee made telescopic with additional rod 15, one end of which is mounted a holding device bearing 6, and the other fixed stop 16, limiting the movement of the rod 15. The cylinders 10 lift 9 is located between the rail 12 and is made telescopic.The area of the piston 17 of the outer rod 18 of the cylinder 10 lift 9 two and a half times the area of the piston 19 of the inner plunger 20.The plant is equipped with the hydraulic power unit 21, which is located behind the left Cabinet 2 and includes a tank with a pumping unit, the control and regulation and distribution equipment, devices for filtering and cooling oil. Station 21 is connected with the hydraulic cylinders 4, 10 zapressovkoj 3 and 9 lifts pipelines (not shown). The us is by infrared 23 for installation of the bearing 6, the Cabinet 24.Device for pressing bearings on wheel pair is as follows.Before pressing, make adjustment valve (not shown) on the pressure corresponding requirements to the force of compression injected type bearings 6, since there is a direct relationship between pressure and force fitting. This involves moving one of zapressovkoj 3 mode "pressing" and a pressure gauge 22 on zapressovke 3 is controlled by the preset pressure at the time when the compression. After the setting of the valve is performed an additional check on the relevant readings of the manometer 22 second zapressovka 3.Before beginning work, all devices must be in the original position, namely, the rods 7 and 15 of the hydraulic cylinders 4 zapressovkoj drawn 3, and table 23 withdrawn; the cylinders 10 lift 9 is omitted; the lugs 13 of the wheels, the pedal 14 is omitted.Further work is performed in the following order. Extends table 23 mounted on it bearing 6. Approaching the bearing 6 on the secondary shaft 15 of the hydraulic cylinder 4 is fully inserted in the stem 8 of the device move. Table 23 is rolled up pair of wheels 8, set on the line of the Elevator 9 and the pedal 14 is fixed lugs 13 in this position. The cylinders 10 lift 9 raise wheel pair 8 to a height of centers 5. The cylinders 10 lift 9 are mounted external to the rod 18 and the inner plunger 20. External rod 18 is designed for lifting the pair of wheels 8, the inner plunger 20 to its posting (discharge) after lifting. The rise happens to force together the outer shaft 18 and the inner plunger 20. Due to the differential areas of the piston 17 of the rod 18 and piston 19 of the plunger 20 when the emphasis of the external rod 18 on the wheel pair 8 is valid only force the inner plunger 20, unloading 5 and additional rods 15.Additional rods 15 of both of the cylinders 4 zapressovkoj 3 make your move to the stop 16, and a pair of wheels 8 is installed in the centers 5. Spring centers 5 tend to raise the wheel pair 8 on the line of centers 5 and the plunger 20 helps them, and removed from the centers of the 5 major part of the radial load, reducing the deflection of additional shocks 15.Included stroke device movements of the bearing 6, that is, the rod 7 of the hydraulic cylinder 4 one of zapressovkoj 3 and the corresponding axlebox bearing 6 zapressovyvajutsja is on the way. Then the rod 7 is given in position before pressing includes the stroke of the second piston rod 7 other zapressovka 3 and zapressovyvajutsja on the axis of the pair of wheels 8, the bearing 6 on the opposite side. Next is given the rod 7 to the original position, and the rod 15 together with the centers 5. Lift 9 omits wheel pair 8 on the rails 12, the pedal 14 is lowered, the stop 13, and a pair of wheels 8 out of installation. Further operations are repeated. 1. Device for pressing bearings on wheel pairs containing base with two symmetrically arranged on the sides of tables, which is installed zapressovki, site installation, a pair of wheels disposed between the tables, lift wheel pair in the form of two hydraulic cylinders and the control device controls operation of zapressovkoj, each of which is made in the form of a hydraulic cylinder with a spring-loaded center of the restraint system bearing device and moving it in the form of a rod of the hydraulic cylinder, and the cylinders of zapressovkoj are directed towards one another, characterized in that the hydraulic cylinder of each zapressovka made telescopic with extra stock, on one end of which is mounted the device UD made in the form of rail managed pedal stops the lift cylinders of the pair of wheels made telescopic and located between the said rails, and pedestals fixed in the vertical plane.2. Installation under item 1, characterized in that each of the telescopic cylinder lift is performed with the inner plunger with the piston, the area of which is 2.5 times smaller than the area of the external piston rod.
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: 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: 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: 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.
FIELD: railway transport; repair of rolled wheels.
SUBSTANCE: according to invention, front and rear plates braced by load-bearing studs with nuts are installed on base to form power unit. Rear plate carries piston hydraulic cylinder with hollow rod and piston with bore. Additional piston and rod are installed, according, in bore of piston and space of hollow rod. Rod thrust against central end face of wheel-set axle. Hollow rod thrust against end face of stepped bore of wheel-set axle found between seat steps for wheel hub and for bearings. Slot is made in front plate for fitting wheel-set axle and thrusting of wheel hub against front plate. Support for wheel-set axle is installed for vertical displacement on base from outer side of power unit. Front plate is braced to base by bolts and bushings and it can displace longitudinal through value of linear deformations. Centers of holes for studs in plates are arranged over circumference with center coinciding with longitudinal axis of hydraulic cylinder.
EFFECT: simplified design of plant, improved reliability and quality of pressing off.
FIELD: processes and apparatuses for pressing-in indenters in housing of drilling bits.
SUBSTANCE: apparatus includes two hydraulic cylinders mounted stationary and mutually communicating; duct for supplying energy carrier communicated with piston cavity of one hydraulic cylinder; pair of pistons and rods. Geometry axes of pistons of hydraulic cylinders are arranged eccentrically relative to common geometry axis of rods.
EFFECT: prevention of cranking rods, coaxial alignment at pressing-in indenters into housing of drilling bits.
FIELD: apparatuses for assembling and disassembling metallic units, possibly dismounting wheels for axles of wheel pairs.
SUBSTANCE: hydraulic device includes sleeve and pusher. Sleeve has turning. Pusher is mounted in turning with possibility of axial motion for forming piston cavity by its one end. Hydraulic device is provided with additional sleeve and piston. Additional sleeve has stepped turning. Sleeve is placed in small-diameter step of turning of additional sleeve with possibility of axial motion for creating in piston cavity pressure acting upon ends of sleeve, additional sleeve and pusher.
EFFECT: improved quality of pressing off process, simplified maintenance.
3 cl, 2 dwg
FIELD: machine building.
SUBSTANCE: present invention pertains to machine building, particularly to devices for controlling the pressing process when making press joints in cylindrical objects for automating control of assembling processes. The device for controlling the pressing process when making press joints in cylindrical objects has a hydraulic press, joined together four updrafts with an elevating beam, four measuring transducers, each of which is in form of a strain sensor, an analogue-to-digital converter and an evaluator. The strain sensors are made on a measuring bridge circuit with provision for registering forces arising in the four updrafts. The outputs of the strain sensors are connected to the inputs of the analogue-to-digital converter, and the outputs of the latter are connected to inputs of the evaluator.
EFFECT: simplification of the design and widening of technological capabilities of the invented device.
FIELD: machine building.
SUBSTANCE: here is disclosed facility consisting of case, mechanism of pusher and mechanism of alignment. The mechanism of the pusher consists of a base with a pneumatic cylinder assembled thereon and a slider designed for transfer the insertion till a collet. The alignment mechanism consists of a base and of secured to it rod; the rod is transferred downward along the case to the collet by applying pressure onto the base. The case is connected to a cover equipped with a cone for alignment of the case of the pin. The rod knocks the insertion out of the collet and the insertion is pressed into the case of the pin.
EFFECT: expanded process functionality.
2 cl, 1 dwg
FIELD: technological processes.
SUBSTANCE: invention relates to the field of railway machine building, in particular to devices for assembly and disassembly of railway wheelsets. Press comprises power frame installed on base in the form of two fixed cross beams connected to each other by two columns, two power hydraulic cylinders installed on fixed cross beams, thrust cross beam for installation of wheelsets elements and two movable cross beams. Each movable cross beam is rigidly connected to plunger of according power hydraulic cylinder and is arranged with the possibility of displacement relative to axes of power frame columns. Movable cross beams are equipped with bearing location plates arranged with the possibility to install wheelset axle on them and its basing and centering in box journals. Thrust cross beam is hingedly installed in columns of power frame between bearing location plates with the possibility of its rotation around its axis, which is perpendicular to axes of power frame columns.
EFFECT: technological resources are expanded, and efficiency of press operations use in assembly or disassembly of wheelsets is increased.
5 cl, 7 dwg