Device for removing an adapter bushing bearings

 

(57) Abstract:

Usage: machine mechanized dismantling an adapter bushing roller bearings in PTC railroad cars. The inventive device includes a hydraulic cylinder with piston-plunger and the handle and the annular working cylinder, the cavity of which are connected by pipelines. Relative fixation devices and removable sleeve is provided with sleeve-sulcatas, which is screwed one end of the threaded clamping sleeve. On the outer surface of the sleeve-sulcatas in the zone of capture of an adapter sleeve has a conical surface in contact with the inner conical surface of the annular cylinder. On the opposite threaded end of the sleeve-sulcatas is restrictive collar, interacting with the butt of the housing of the working cylinder. In addition, the sleeve is equipped with longitudinal slots located on the sides of the thread and conical surface. 3 Il.

The invention relates to the field of engineering and is intended for mechanized dismantling an adapter bushing roller bearings located ora consists of telescopic glasses with mechanized drive for catching-up on the threaded clamping sleeve, hydraulic press, electric hydraulic presses, lifting mechanism of a hydraulic press, the movement mechanism of the device mounted on a common frame that moves in the horizontal direction [1]

The disadvantage of this setup is that it is not possible to remove an adapter sleeve with proslavlennoi thread that is capturing and retrieving them from under the bearing axle boxes, hence the low efficiency of the installation.

The closest analogue of the claimed invention is a device for removing an adapter sleeves bearing hydraulic cylinder with the piston-plunger and the handle and the annular working cylinder, the cavity of which are connected by pipelines, as well as the sleeve-isolecithal made with internal thread at one end for screwing onto the threaded removable clamping bushing [2]

Sleeve-isolecithal screw on the threaded clamping sleeve to lock the end of the annular piston in an end face of the inner ring of the bearing. Handle navertyvajut push the glass cylinder, which moves along the thread will pull the piston-plunger. When this oil filling the cavity hydrocylinders. Under the action of the reaction force of the pressure device will be shifted away from the end of the axle, and an adapter sleeve out of the inner ring of the bearing.

A disadvantage of this device is the inability to pickup an adapter sleeves with proslavlennoi thread, since their dismantling thread rumpled and Bush have repeatedly cannot be used, hence the low efficiency of his work.

The technical problem to be solved by the present invention is directed, is to eliminate these disadvantages, namely: improving the efficiency of the device by creating a tight connection screw pairs: device and an adapter sleeve as proslavlennoi and nepokalenej thread.

The problem is solved so that in the known device for removing an adapter sleeves bearing hydraulic cylinder with the piston-plunger and the handle and the annular working cylinder, the cavity of which are connected by pipelines, as well as the sleeve-isolecithal made with internal thread at one end for screwing on the thread dismantled an adapter sleeve, the housing of the working cylinder in the some form and the sleeve-isolecithal performed with the outer conical surface at one end having an internal thread, the restrictive collar at the opposite end, and longitudinal grooves spaced from the mentioned thread and conical surface, and installed in the last contact with the surface area of the conical shape of the hull of the working cylinder and with the ability to interact with the restrictive collar with the mentioned case.

Thanks to the conical surface of the housing of the working cylinder and sleeve-sulcatas, and the presence of longitudinal slots restrictive collar to the invention have new properties:

the opportunity to eliminate the gaps between the bumps and hollows of the thread clamping sleeve and sleeve-sulcatas that enables regardless of the quality of thread wear, proslableniya during manufacture) to remove an adapter sleeve from the bearing housing of the wagon-box;

the longitudinal slots of the sleeve-sulcatas provides the flexibility and pliability of his jaws part that it is possible to eliminate the gaps in the threads with quite small effort;

the presence of restrictive collar allows you to limit the compression force of the pair of the bearing without damaging the threads.

In Fig. 1 shows a device for removing an adapter bushings in the context at the moment of extraction of the adapter sleeve from the bearing axle boxes for railway car of Fig. 2 shows a sleeve-isolecithal (side view), and Fig. 3 shows a view of "W" in Fig. 2.

The device shown in Fig. 1, is a cylinder 1 in which a piston 2, which is driven by the arm 3. The piston 2 is designed to supply the working fluid (mineral oil) under high pressure from the cavity in the cavity "b" of the working cylinder 4 with the annular piston 5, which provides the relative movement between the housing of the hydraulic cylinder 4 relative to the bearing 6. Cavity "a" and "b" of the hydraulic cylinders are connected through piping 7.

An adapter sleeve 8 for attachment of the bearing 6 in the housing 9 pan, fixed relative to the device for removal through the sleeve-sulcatas 10, which is made with internal thread 11, the outer conical surface 12 and the longitudinal slots 13. At the end of the sleeve-sulcatas 10, the opposite end of the thread 11, there is a restrictive collar 14 that interacts with the housing an annular cylinder 4 at the end of its stroke, when there was ="ptx2">

Wheelset, designed for disassembly books come in a depot at the site of removal, where they are manually dismantled, and, namely: a wrench or socket wrench, Unscrew the locking bolts of the cover and remove it, allowing access to an adapter sleeve 8. On the thread axis of the wheelset navertyvajut guide Cup 15, precluding jamming of the clamping sleeve. Device for removing an adapter bushing screw on the threaded part of the adapter bushing 8 bushing-izvlekateljami 10 (threaded part) to another end of the annular piston 5 in the end face of the inner ring of the bearing 6. The arm 3 are set in motion by the piston 2, and the oil, compressed beneath the piston in the cavity "a" of the hydraulic cylinder flows into the cavity "b" of the hydraulic cylinder 4 to line 7, and by creating a high pressure on the annular piston 5, presses it with great force to the inner ring of the bearing 6. Under the action of the reaction force of the pressure cylinder 4 will be shifted away from the end face of the inner ring of the bearing 6, which rests against the annular piston 5 in the direction of arrow "b", with the inner tapered surface of the working cylinder 4, moving relative to the sleeve-sulcatas 10, it compresses the outer cone of dovecotes 10 and an adapter sleeve 8, forming a tight connection to prevent collapse proslavlennyh threaded surfaces.

At the end of the working stroke of the working cylinder 4 rests on the restrictive collar 14 of the sleeve-sulcatas 10, which does not allow to develop an invalid load, damaging the threaded surface of a glass-sulcatas and an adapter sleeve.

In addition, the working cylinder 4, resting on the restrictive collar 14 of the sleeve-sulcatas 10, pulls out an adapter sleeve 8 from under the inner bearing ring 6.

This device is more flexible than the closest analogue, as it allows you to remove an adapter sleeve as nepokalenej and proslavlennoi thread that allows the use of recoverable clamping sleeve repeatedly.

This solution can be used in engineering when disassembling the various nodes, changing Executive dimensions of the proposed device for each specific case.

Device for removing an adapter sleeves bearing hydraulic cylinder with the piston-plunger and the handle and the annular working cylinder, the cavity of which is connected to the screwing on the thread dismantled an adapter sleeve, characterized in that the housing of the working cylinder is made with located on its inner surface in the zone of capture of an adapter sleeve stretch of conical shape, and the sleeve-isolecithal performed with the outer conical surface at one end having an internal thread, the restrictive collar at the opposite end, longitudinal grooves spaced from the mentioned thread and conical surface, and installed in the last contact with the surface area of the conical shape of the hull of the working cylinder and interoperable restrictive collar with the mentioned case.

 

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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

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