RU2222657C2 - Cantilever track-laying machine for changing switch units - 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 low-mounted cantilever boom with load-lifting equipment for vertical displacement of switch unit and furnished with brace and brace support post mounted on self-propelled platform car with power equipment. Brace resting on support post, is secured by one end on end on cantilever part of boom, and by other end, on platform-counterweight connected to self-propelled platform car with power equipment. Support post is mounted on side of self-propelled platform car opposite to boom. Said support post is made articulated and it can be tilted along platform by its turning mechanism. Invention makes is possible to built track-laying machine whose dimensions permit its getting under portal hoists with gripped switch unit and under switch unit lifted up by portal hoists. EFFECT: enlarged operating capabilities. 3 cl, 4 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 facilities. / Under the editorship of S. A. Solomonov. - M.: Transport, 1984. - S. 188-200; A. S. 187064 USSR, E 01 B 29/02. Overhead crane; AS 1062326 USSR, E 01 B 29/02. Overhead crane) containing a high-mounted jib boom mounted on self-propelled with power equipment platform with lifting equipment for gripping, vertical and longitudinal-horizontal moving links of the rail-sleeper grid of the railway track, including within the portal tracklayer.

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

 A known method of changing switches (AS 767262 USSR, E 01 B 29/02. Method of changing switches) using a cantilever tracker containing a low-mounted cantilever boom mounted on a self-propelled platform with power equipment with lifting equipment for gripping and vertical movement of the block turnout switch, which allows you to transport turnout blocks when moving the track stacker under or out of the portal lifts and with which the rest of the load is carried out many operations with turnout blocks when changing them, such as loading a block on a platform, removing a block from a platform, etc.

 However, the arrow of the well-known cantilever track-laying machine, due to the large mass of the turnout unit and the large reach for slinging it, which is especially characteristic when breaking the turnout with reinforced concrete beams into only two blocks, is subject to significant load, including the supporting part of the self-propelled platform with power equipment , which in turn requires the use of the dimensions of the boom, especially high-altitude, unacceptable values.

 Known devices, mainly tower cranes (Handbook of cranes. Volume 1./Under the general ed. Doctor of Technical Sciences, Professor MM Gokhberg. - M.: Mechanical Engineering, 1988. - S.505-506; Construction Machines - Directory. - M .: 1969. - P. 37-43), containing horizontal cantilever arrows, equipped with a brace fixed at one end at the end of the arrow, and the second at the head of the crane tower, which allows to increase the load capacity and rigidity arrows.

 Known console track-laying machine (Track machines and railway mechanisms of normal and narrow gauge. Directory-directory. Part 1. - M .: NIIINFORMTYAZHMASH, 1968. - P. 12-13 - taken as a prototype), containing a platform mounted on a self-propelled with power equipment a high-mounted cantilever boom with lifting equipment for vertical and longitudinal-horizontal movement of the link of the track lattice and equipped with a brace and a support stand for it.

 This design of the cantilever boom can increase its carrying capacity and rigidity, however, the dimensions of the track stacker do not allow it to be used when changing the turnout blocks according to the known method, when not only the dimensions of the track stacker are limited, but also the dimensions of the portal lifts, for example, a contact wire suspension.

 A cantilever tracker is required, mainly for changing turnout blocks, containing a low-lying cantilever boom with lifting equipment for vertical movement of the turnout unit and the dimensions of which would allow it to move under the portal lifts with the captured block and under the raised portal lifts the turnout unit.

 To do this, in a well-known cantilever track-laying machine containing a low-mounted cantilever boom mounted on a self-propelled platform with power equipment, with lifting equipment for vertical movement of the turnout unit and equipped with a brace and a support stand for it, designed, supported on a support stand for it, is fixed at one end to one end the cantilever part of the boom, and the second - on the counterweight platform, attached to the platform self-propelled with power equipment, the support column is mounted in the side of the self-propelled platform that is leaning away from the boom and is hinged with the possibility of its deflection along the platform by its rotation mechanism.

 In addition, the rotation mechanism of the support column is made in the form of a power hydraulic cylinder, and the calculator is equipped with a turnbuckle for its tension.

 Settled, fixed at one end on the end of the cantilever part of the boom, and the other on the counterweight platform and resting on a support stand mounted on the side of the self-propelled platform with power equipment opposite to the console boom, allows transferring part of the load from the boom to the counterweight platform, which in turn allows you to increase the carrying capacity of the long-reach boom without increasing it, especially its height, unload the platform undercarriage under the boom and load the opposite t a trolley, to eliminate the moment, overturning around the undercarriage, from the loaded boom, which in the end allows you to move the track stacker under the portal lifts with the turnout unit suspended from its boom.

 The implementation of the articulated support column with the possibility of its deflection along the self-propelled platform allows it to be rejected after being released from the turnout unit, which reduces the height of the track stacker and that allows it to move under the raised portal lifts of the turnout unit.

 The implementation of the rotation mechanism of the support strut in the form of a power cylinder and the equipment calculated with a lanyard for its tension are simple and reliable in their design.

 Figure 1 shows the cantilever tracklayer when moving it under the portal lifts with a turnout unit suspended from its boom; figure 2 - the same, with suspended portal lifts block turnout; figure 3 - support for calculating rack when interacting with a flexible brace; figure 4 is the same when interacting with a rod brace.

 The cantilever track stacker comprises a low-lying cantilever boom 3 mounted on a platform 1 traveling on a self-propelled platform with power equipment 2 and lifting equipment 4 for gripping and vertical movement of the switch unit 5.

 The boom 3 of the track stacker is equipped with a brace 6, one end of which is fixed at the end of the cantilever part of the boom, and the other on the counterweight platform 7 attached to the platform 2. The brace rests on a support post 8, pivotally mounted on the side of the platform 2, which is pivotally mounted, with the possibility of deflection it along the platform by the mechanism of its rotation, made in the form of a power cylinder 9, the rod of which is pivotally attached to the rack, and the sleeve to the platform. In the vertical position, the rack 8 is additionally fixed by the stop 10. He calculated for his stretch is equipped with a turnbuckle 11.

 The calculation can be flexible or pivotal. Figure 3 shows the support post 8 when it interacts with a flexible brace 12, which is pulled by the turnbuckle 11 in the upright position of the post and which loosens and smoothly fits along the platforms when the post deviates, and the strut support surface is also slipped relative to each other.

 Fig. 4 shows a rod calculation comprising a rod 14 and a rod 15 connected by a finger 13. The rod 15 is made with a groove providing tensioning of the rods when they are resting on the rack in a vertical position and lowering them when the rack is deflected, the supporting surface of which slides along the rod 14.

 The operation of the console tracker is as follows.

 A track-layer with a brace stretched in the vertical position of the support column with his arrow captures and hangs out the block of the switch. In this position, the track stacker moves the turnout unit to or from the zone of placement of the portal lifts 16, where he leaves the unit or where he picks it up.

 With a weakened brace and a support stand deflected, the height of the track stacker is reduced and it can move without a turnout unit in the installation area of the portal lifts 16 with a turnout unit suspended by them.

Claims (3)

1. A cantilever track-laying device, mainly for changing turnout blocks, comprising a low-lying cantilever boom mounted on a self-propelled platform with power equipment for lifting the turnout unit and equipped with a brace and support stand, characterized in that it is designed and supported on a support stand, one end mounted on the end of the cantilever part of the boom, and the other on the counterweight platform attached to the self-propelled with power equipment By using the platform, the support stand is mounted on the side of the self-propelled platform opposite to the boom and is hinged with the possibility of its deflection along the platform by its rotation mechanism. 2. The track layer according to claim 1, characterized in that the rotation mechanism of the support column is made in the form of a power hydraulic cylinder. 3. The track layer according to claim 1, characterized in that the calculator is equipped with a turnbuckle for its tension.

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