RU2222658C2 - Cantilever track-laying machine for changing switch units (versions) - Google Patents

Abstract

FIELD: railway transport; mechanization of track facilities. SUBSTANCE: invention can be used at removing or laying switch units or track skeletons. Proposed cantilever track laying machine contains cantilever boom-low mounted on self-propelled platform car with load-lifting equipment for gripping and vertical displacement of switch units and furnished with vertically movable supports. At least two vertically movable supports are mounted one after the other on end of cantilever part of boom being movable along boom for in-turn resting on ground bed between bars of switch unit. Supports mounted in middle part of boom are furnished with wheels to rest on track rails between bars of switch unit when track-laying machine is moving. Track-laying machine platform is equipment with step drive. Design version is provision of vertically movable supports on end of cantilever part of boom with wheels for resting on temporary base whose length corresponds to length of switch unit to be replaced. Wheels are provided in middle part of boom to rest on rails between bars of switch unit when track-laying machine is moving. Invention makes it possible to form track-laying machine in which boom can be relieved from load, its rigidity is increased, force acting onto support part of track-laying platform is reduced, turn-over moment relative to support part of platform is eliminated and switch unit can be displaced without side limitations. EFFECT: improved reliability in operation. 3 cl, 7 dwg

Description

 The invention relates to the field of mechanization of track facilities of railway transport and can be used when cleaning or stacking turnout blocks or links of a rail-sleeper lattice of a railway track.

 Known cantilever tracklayers for laying or cleaning links rails and sleepers (Machines and mechanisms for track management / under the editorship of S. A. Solomonov. - M.: Transport, 1984, p.188-200; A.S. 187064 USSR, E 01 B 29/02. Overhead crane; AS 213087 USSR, E 01 B 29/02. Overhead crane; A. S. 1062326 USSR, E 01 B 29/02. Overhead crane) containing mounted on a self-propelled motor platform jib boom with lifting equipment for gripping. vertical and longitudinal-horizontal movement of the links of the rail-sleeper lattice of the railway track, including inside the portal tracker.

 However, the known cantilever tracklayers are not suitable for operations with blocks of turnouts due to their (blocks) large latitudinal dimensions and more significant mass.

 A known method of changing turnouts (AS 767262 USSR, E 01 B 29/02. Way of changing turnouts) using a cantilever tracker containing a low-lying cantilever boom mounted on a self-propelled motor platform with lifting equipment for gripping and vertical movement of the turnout unit , which allows you to transport turnout blocks when moving the track stacker under or out of the portal lifts and which carry out other load-gripping operations with turnout blocks when changing them.

 However, the boom of the well-known cantilever track-laying machine, due to the large mass of the turnout unit and the large reach for its sling, which is especially typical when the turnout with reinforced concrete beams is divided into only two blocks, is subject to significant load, including on the supporting part of the motor platform, which requires the use of the dimensions of the boom, especially high-altitude, unacceptable values. In addition to significant loads on the boom and the supporting part of the motor platform, there is a significant uninsured tipping moment relative to the supporting part of the platform, which is typical for all cantilever tracklayers.

 Known tracklayers (A.T. Chizhov, A.R. Kostyukovich. Mechanization of track laying. - M.: Transport, 1966, - p. 69-75; A.S. 147208 USSR, E 01 B 29/02. Trailed tractor track-laying tracker PB-2; AS 1318624 USSR, E 01 B 29/02. Track-laying tracker) containing a gantry-type boom when both ends are supported on supports. The bearing capacity of such an arrow is significantly higher than the cantilever. However, the working conditions of such a track-laying machine are completely different than those of the cantilever and unacceptable for working with turnout blocks by a known method.

 Known cantilever tracker (AS 1444453 USSR, E 01 B 29/02. Crane tracker on a combined move. - taken as a prototype), containing a jib mounted on a motor platform with lifting equipment for gripping and vertical movement of links of the rail-sleeper grid or switch units transfers, equipped at the end of its cantilever part with height-adjustable (vertically movable) stops (supports) interacting with a portal frame mounted on a loading platform with links of the rail-sleeper grid.

 The equipment of the end of the cantilever boom with height-adjustable stops interacting with the portal frame can increase its carrying capacity and rigidity, however, this design of the supporting device of the cantilever part of the boom makes it impossible to longitudinally move the trapped and raised link together with the boom and, accordingly, with the track stacker and therefore cannot be used when changing blocks of turnouts by a known method. In addition, the captured turnout unit is limited on the sides by a portal frame of certain, usually limited, dimensions.

 A cantilever tracker with a low boom with lifting equipment is required for gripping and vertical movement of the turnout unit or link of the rail-sleeper lattice with further longitudinal horizontal movement of it together with the tracker, the cantilever part of the boom of which is equipped with vertically movable supports that do not impede the longitudinal horizontal movement of the tracker. which will allow to unload the boom, increase its rigidity, reduce the force on the supporting part of the track stacker platform, eliminate the overturning moment relative to the supporting part of the platform, move the turnout unit without lateral dimensional restrictions.

 To do this, in a well-known cantilever track-laying machine, comprising a low-lying cantilever boom mounted on a self-propelled motor platform with lifting equipment for gripping and vertical movement of turnout units and equipped with vertically movable supports, at least two vertically movable supports are mounted one after another at the end of the console part of the boom and are made movable along it to alternately support them on an earthen base in the alignment between the bars of the turnout unit, in the middle its parts are mounted bearings, fitted with wheels for supporting the line between bars block turnouts in the path of the rails tracklayer and tracklayer platform is equipped with a drive indexing.

 Equipping the end of the cantilever part of the boom with at least two height-adjustable supports mounted one after the other, made movable along the boom to alternately support the earthen base in the alignment between the bars of the turnout unit, allows you to increase the load capacity of the long-reach boom without increasing it, especially its height, to relieve undercarriage of the motor platform, eliminate the moment overturning relative to the undercarriage of the platform and stepwise move the captured and raised block with relochnogo translation in the longitudinal direction.

 Equipping the middle part of the boom with height-adjustable supports equipped with wheels for supporting the track-moving path between the bars of the turnout switch on rails also makes it possible to increase the load capacity of the boom without increasing its dimensions, especially high-altitude ones, to unload the undercarriage of the motor platform, and to eliminate the platform overturning relative to the platform carriage moment with further movement in the longitudinal direction, already continuous, captured, raised and partially moved in the longitudinal direction systematic way block turnouts by relying arrows on the tracks movement path tracklayer.

 Equipping the platform of the track stacker with a drive for its step movement allows you to synchronize the step movement of the supports mounted one after another at the end of the boom console with the same movement of the track stacker.

 It is possible that in a well-known cantilever track-laying machine containing a low-lying cantilever boom mounted on a self-propelled motor platform with lifting equipment for gripping and vertical movement of turnout units and equipped with vertically movable supports, vertically movable supports are mounted at the end of the cantilever part of the boom and in its middle part, in this case, vertically movable supports at the end of the cantilever part of the boom are equipped with wheels for supporting on a temporary inventory basis of a length which corresponds to the length of a removable track switch block, and the middle part of the boom equipped with wheels for supporting the bars in the alignment between the switch block translation on rails tracklayer transport path.

 Equipping the vertically movable supports at the end of the boom cantilever with wheels to support it on a temporary inventory base, the length of which corresponds to the length of the switch unit, allows, in addition to increasing the carrying capacity of the long-reach boom without increasing it, especially its height, unloading the undercarriage of the motor platform and eliminating the tipping over chassis platform trolley moment to continuously move the gripped and raised turnout unit in the longitudinal direction and up to the path of the track stacker with further movement of the turnout block along the path of the track stacker when resting on its rails with the wheels of the supports of the middle part of the boom.

 Figure 1 shows a General view of the proposed tracker, side view; in FIG. 2 - drive longitudinal along the boom of moving the supports of the end of the cantilever part of the boom; figure 3 - drive stepper movement of the track stacker; figure 4 is a section aa in figure 3, the rail clip of the drive stepping movement of the tracker; in FIG. 5 - position of the track stacker with support resting on the end of the cantilever part of the boom on a temporary inventory base; Fig.6 is a sequential position of the supports of the end of the cantilever part of the boom when moving the track stacker stepwise; in Fig.7 - the position of the track stacker with a supported support of the middle part of the boom on the path of movement of the track stacker.

 The cantilever track stacker contains a low-mounted cantilever boom 3 mounted on a self-propelled motor platform 1, moving along the running path 2 with load-gripping equipment 4 for gripping and vertical movement of the interchangeable switch unit 5.

 At the end of the cantilever part of the boom 3, at least two vertically movable, one after the other, for example, with the help of hydraulic cylinders mounted, supports 6, made movable along the boom, are also possible with the help of hydraulic cylinders 7. Supports 6 are placed from each other so that they can accommodate in adjacent sections between the bars of the turnout switch. The supporting parts of the supports are equipped with platforms 8 for supporting them on an earthen base.

 In the middle part of the boom, supports 9 are mounted vertically movable by means of hydraulic cylinders, made by hydraulic cylinders movable along the boom and equipped with wheels 10 on their supporting part for supporting them on the rails of the track 2 of the track stacker.

 The track stacker platform 1 is equipped with a step motion drive 11, which is a carriage 13 moved by a hydraulic cylinder 12 with rail clamps 14, the levers 15 of which are driven by a hydraulic cylinder 16. The carriage 13 is equipped with wheels 17 for moving it along the track rails of the track stacker 2 and hydraulic cylinder 18 for raising and lowering it .

 In FIG. 5 shows a variant where vertically movable supports 6 at the end of the cantilever part of the boom are equipped with wheels 19 for supporting on a temporary inventory base 20.

 The work of the console tracker as follows.

 The track layer approaches the removable switch unit 5. The block is slinging. The carriage 13 of the step-by-step drive 11 is lowered onto the rails of the track-moving path 2 and moves forward, the rail heads are clamped by the rail clips 14. The supports 6 on the cantilever part of the boom are lowered into the cross-sections between the bars of the turnout unit. The first of the supports, moving along the boom, is pressed against the beam and lowered, resting on an earthen base. The block rises (Fig. 1 and position 1 in Fig. 6).

 With the step drive 11, the track stacker moves to step l ′, which is less than the cross section between the bars l by the thickness of the vertically movable part of the support 6 (position 2 in FIG. 6). Step l 'can be increased by removing two bars of the turnout unit. Then the two alignments between the bars for placing the supports will increase by more than 3 times, because the width of the beam is greater than the alignment between them. Then the step of moving the track layer will increase by the same amount.

 When moving the track stacker, the second support moves together with it, pressing along the beam with its movement along the boom.

 At the end of the movement, the second support is lowered, resting on an earthen base. The first support rises some distance from the earthen base. The step-by-step drive idles by moving the carriage forward to clamp the rail heads with its rail clamps (position 3 in FIG. 6).

 The track layer moves to the next step (position 4 in FIG. 6). The first support, moving with the boom when moving the track stacker and along the boom, is pressed against the beam and lowered to support the earthen base, the second support rises from the earthen base (position 5 in FIG. 6). The track layer takes the next step (position 6 in FIG. 6).

 The stepwise movement of the track stacker is performed until the supports of the middle part of the boom reach the path 2 of movement of the track stacker. Moving along the boom, the supports 9 are lowered into the target between the bars of the turnout unit until they are supported by their wheels 10 onto the rails of the track-moving path 2 (Fig. 7). The carriage drive the stepping movement 11 rises.

 Further movement of the turnout block by the track stacker is carried out continuously when the middle part of the boom is supported on the track track track rails.

 When laying the turnout unit, all manipulations of the tracker are carried out in the reverse order.

 In the case of vertically movable supports at the end of the cantilever part of the boom, equipped with wheels 19, a temporary inventory base 20 is preliminarily laid along the block to be removed along its entire length 20. At the track stacker, which has approached the block to be removed, the supports 6 are lowered against the stop by their wheels 10 on temporary inventory base 20. The block slings and rises (position in figure 5). Then the block moves with the continuous rolling of the wheels of the supports 6 along the temporary inventory base 20 until the supports of the middle part of the boom reach the track 2 of the track stacker. The boom with its supports 9 rests on the rails of the track stacker, and the track stacker in this position carries out further movement of the turnout unit. The installation of the turnout unit is carried out in the reverse order of operations.

Claims (2)

1. A cantilever track-laying device mainly for changing turnout blocks, comprising a low-mounted cantilever boom mounted on a self-propelled motor platform with lifting equipment for gripping and vertical movement of turnout blocks and equipped with vertically movable supports, characterized in that at least two vertically movable supports are mounted for each another at the end of the cantilever part of the boom and are made movable along it for alternately supporting them on an earthen base in the cross-section between the bars of the turnout unit, in the middle part of the boom there are mounted supports equipped with wheels for supporting in the alignment between the bars of the turnout block on the rails of the track-moving path, and the track-laying platform is equipped with a step-by-step drive. 2. A cantilever track-laying device mainly for changing turnout blocks, comprising a low-mounted cantilever boom mounted on a self-propelled motor platform with lifting equipment for gripping and vertical movement of turnout blocks and equipped with vertically movable supports, characterized in that the vertically movable supports are mounted on the end of the console part of the boom and in its middle part, while vertically movable supports at the end of the cantilever part of the boom are equipped with wheels for inventory temporary support on a base, the length of which corresponds to the length of a removable track switch block, and the middle part of the boom equipped with wheels for supporting the bars in the alignment between the switch block translation on rails tracklayer transport path.

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