Movable installation for pressing-in bearing assemblies

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.

10 dwg

 

The invention relates to repair the equipment, in particular locomotive depot of the railway transport, and is designed, for example, for pressing, and repressive axlebox bearings, including cassette, wheels with axes and other similar devices.

The closest technical solution to the described invention, the essential features, is a mobile unit for mounting bearing lifting table, including the bottom wheeled platform and pivotally mounted on her upper deck with a mechanism for lifting and lowering the latter, located on the top floor of the power cylinder is connected by a hose through the control unit with pump unit high pressure, consisting of a tank, pump unit, drain pipe, the suction pipe connecting the inlet of a pump unit with tank and capture for mounting and Dismounting bearings.

(EN 2003452 C1, 23 P 19/027, 30.11.1993).

The disadvantage of the stand for mounting and Dismounting bearings design is the complexity of the capture mechanism of the bearings and its low reliability and low reliability and a large number of failures in the hydraulic system installation.

The objective of the invention is to improve the reliability and infallibility in the system.

The problem is solved due to the fact that mobile unit for pressing bearings contains a lifting table, which includes the bottom wheeled platform and pivotally mounted on her upper deck, mechanism for raising and lowering the latter, located on the top floor of the power cylinder is connected by a hose through the control unit with pump unit high pressure, consisting of a tank, pump unit, drain pipe, the suction pipe connecting the inlet of a pump unit with tank and capture for mounting and Dismounting bearings, and the mechanism for lifting and lowering the top platform is made in the form of a hydraulic actuator and is mounted on the bottom platform pump the unit is located on the top cover of the tank and made in the form of volumetric hydraulic pump with electric motor, suction line filter is installed, the control unit is made in the form of a housing that includes two built-in safety valve, crane dispenser and built-in check valve, to the control unit connected to the pressure gauge and connected with the drain pipe an additional filter with priming hole, hydroline made in the form of flexible hoses and the installation is equipped with optional hydraulic power cylinder forming with the main cylinder, ustanovlena.posle, the power cylinders mounted on the sheet-holder, mounted on the upper platform can be rotated or removal from the landing and movement of the block within the length of flexible hose, while the same hollow cylinders communicated with each other, and the grip is made as mounted respectively on the rods and rear covers of the cylinders movable and fixed plates to attach the rods of the device.

Figure 1 shows a General view of a mobile unit for pressing bearings.

Figure 2 shows a top view of a mobile unit for pressing bearings. The dashed line shows the rotated position of the cylinder block.

Figure 3 shows a section a-a in figure 2.

Figure 4 shows a top view of the pump unit.

Figure 5 shows a section b-B pump unit in figure 4.

Figure 6 shows a General view of the control unit.

7 shows a section along b-b In Fig.6.

On Fig shows the G control unit figure 6.

Figure 9 shows a section along d-D in Fig.

Figure 10 shows the hydraulic diagram installation for mounting bearings.

Mobile unit for pressing bearings, such as bearings wheelset rolling stock of railway transport, contains a lifting table, which includes the bottom wheeled platform 1 and the hinge set is and her upper platform 2, mechanism 3 of the lifting and lowering of the upper platform 2, is made in the form of a hydraulic actuator and mounted on the underside of the platform 1, located on the upper platform 2 of the power cylinder 4 is connected by a hose made in the form of flexible hoses 5, unit 6 controls the pump unit high pressure, consisting of a tank 7, the pump unit, the drain line 8, the suction pipe 9 connecting the inlet of the pumping unit to the tank 7. The plant is equipped with optional hydraulic power cylinder 10 forming with the main cylinder 4, installed in parallel, a power unit hydraulic cylinders mounted on the sheet-holder 11 mounted on the upper platform 2 can be rotated, for example, 90°or the removal of the upper platform 2 and move the block of power cylinders 4 and 10 within the length of the flexible hose 5, while the same cavity of the cylinders 4 and 10 are communicated with each other.

The pumping unit mounted on the top cover of the tank 7 and is made in the form of a volume of the hydraulic pump 12 and motor 13. In the suction pipe 9 is installed filter 14. The control block 6 includes a housing 15 includes two built-in safety valve 16 and 17, crane valve 18 and a built-in check valve 20. The control block 6 is connected a pressure gauge 19 and connected with the drain what Truboprovod 8 additional filter 21 with the filling hole 22. The capture is made as mounted respectively on the rods and rear covers of the cylinders 4 and 10 of the movable and stationary plates 23 and 24 for connection rod fixture.

In addition, the mobile unit includes a handheld remote control 25 control cable 26 with a fork, and electrochrome 27.

Mobile unit for pressing bearings, such as a cassette bearings, wheels of the rolling stock of railway transport works as follows.

The connection setup is performed through 3-plug outlet (Euro plug) to ground. Switching on and off of the electric motor 13 of the hydraulic pump 12 pump unit is appropriate buttons on the remote Board 25 or electrocoat 27. Oil from the tank 7 (see hydroscheme in Fig. 10) through the suction pipe 9 and the filter 14 by the hydraulic pump 12 is supplied to the control block 6 and further to the hydraulic cylinders 4 and 10. If the crane arm of the distributor 18 is directed toward the cylinders 4 and 10 (perpendicular to its axis), the oil under pressure, custom safety valve 17 high pressure and controlled by the manometer readings 19, enters the piston cavity of the cylinders 4 and 10. The nomination of the cylinders 4 and 10 and the pressing (repressive) bearings. From the rod end oil goes in the drain is Truboprovod 8 through an additional filter 21 fine cleaning. When turning the knobs crane dispenser 18 clockwise 90° switch crane distributor 18, and oil under pressure, custom safety valve 16 low pressure, enters the rod end of the cylinders 4 and 10. Is retraction of the rods of the hydraulic cylinders 4 and 10 and return to the original position. Drain the oil from the system is through the filter 21. The filter 21 is protected by a valve 20 opens when the pressure of 0.2 MPa in the drain pipe 8. Through the same filter 21 is oil poured into the tank 7 through the fill port 22, which allows to additionally protect the system from contamination and thereby improve the reliability of the installation.

Mobile unit for mounting bearing lifting table, including the bottom wheeled platform and pivotally mounted on her upper deck, mechanism for raising and lowering the latter, located on the top floor of the power cylinder is connected by a hose through the control unit with pump unit high pressure, consisting of a tank, pump unit, drain pipe, the suction pipe connecting the inlet of a pump unit with tank and capture for mounting and Dismounting bearings, characterized in that the mechanism for lifting and lowering the issue is linen in the form of a hydraulic drive and installed on the underside of the platform, the pumping unit is located on the top cover of the tank and made in the form of volumetric hydraulic pump with electric motor, suction line filter is installed, the control unit is made in the form of a housing that includes two built-in safety valve, crane dispenser and built-in check valve, to the control unit connected to the pressure gauge and connected with the drain pipe an additional filter with priming hole, hydroline made in the form of flexible hoses and the installation is equipped with optional hydraulic power cylinder forming with the main cylinder, installed in parallel, a power unit hydraulic cylinders mounted on the sheet-holder, mounted on the upper platform can be rotated or removal from the landing and movement of the block within the length of flexible hose, while the same hollow cylinders communicated with each other, and the grip is made as mounted respectively on the rods and rear covers of the cylinders movable and fixed plates to attach the rods of the device.



 

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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.

10 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: 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.

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EFFECT: enlarged manufacturing possibilities, improved quality of combining wheel pairs, simplified design of press.

6 cl

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.

5 dwg

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.

1 dwg

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EFFECT: improved quality of pressing off process, simplified maintenance.

3 cl, 2 dwg

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EFFECT: simplification of the design and widening of technological capabilities of the invented device.

2 dwg

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

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