DD145864A3 - CENTERING DEVICE FOR TRACK LOADING MACHINES - Google Patents

Abstract

The invention relates to a mobile machine for carrying out screwing in railway superstructure, in particular for attaching or removing and / or tightening releasable fasteners of the track. The object of the invention is the development of a mobile machine for performing screwing on the fastening means between rail and sleepers. At the same time, the task of simultaneous execution of work is solved at several thresholds directly behind each other. To solve the problem, a plurality of successively arranged screwing piston-cylinder units associated with which the central screw is first centered, and then serves as the basis for the centering of both sides adjacent screwing. For all-round compensation when placing on the fastener to be machined and for fast grasping of the same each tool has a special joint and a vertically acting compression spring. The invention is applicable to machines for the execution of screwing in track construction.

Description

206557 -ι-

Centering device for track-bound screwing machines

Field of application of the invention:

The invention relates to a centering device for track-bound screwing machines for carrying out screwing work in railway superstructure,

Characteristic of the known technical solutions?

There are known machines for carrying out at intervals track work, in which the continuously movable machine longitudinally movable or, a relative movement exporting and elastically suspended Schraubmachine and the driving movement limiting stop lever for centering are available «For a similar purpose, a machine further confesses, at which is brought by means of a pulse generator and a downstream control device, a working organ approximately in the middle above a threshold to a halt. For this similar purpose, for example, for the execution of Stopf »work, achieves the achievable accuracy of the centering, but is unsuitable for screwing, where a tool is relatively accurate to be set over a screw head

It is also known, mobile to hang screwing on a carrier vehicle on a longitudinal beam, so that during work execution with continuous Fortbewe-

- ² - 2 ö c

It is also known, in this way, to arrange a plurality of screw devices one after the other on each side of the rails in pairs in order to achieve a higher labor productivity to reach. This, however, results in the defect that the longitudinal centering of the screwing devices with their screwing tools over the rail fastening means is completely insufficient owing to the considerably fluctuating threshold distances. Known for this purpose stop lever, locking lever and pulse with their associated Beistelleinrichtungen can constructively because of the limited space not accommodate so that a simultaneous processing of several adjacent thresholds is possible «A further exploded arrangement of screwing for processing only every second threshold results but the disadvantages of a considerably longer support frame and the disadvantage of an inconsistent work progress »Even the well-known elastic suspension of the screw with 'additional spring elements does not provide a satisfactorily safe solution ,,

Object of the invention:

The object of the invention is to increase the operating speed of screwdrivers and to adjust the average working speed of other complex track-laying machines.

Explanation of the essence of the invention;

The invention is based on the object of providing a centering device with which an accurate and despite the existing differences of the threshold distances sufficiently accurate longitudinal

Centering of acting on several directly behind each other thresholds and longitudinally displaceable by piston-cylinder units Schraubschraubenpaare is achievable *

According to the invention, this is achieved by the piston-cylinder units (1.5, 16), which connect the screwing devices in a longitudinally displaceable manner, have different diameters «

With the known, each group of longitudinally adjacent screw associated attacks results with the inventive device that when Druckmittelbeaufschlag.ung all connecting the screwing piston-cylinder units with the same pressure altitude temporally first the group of screwing with the piston-cylinder units, the largest diameter is centered and the assumed position further served as the basis for centering the adjacent screwing devices in the order of the size of the diameter of the other piston-cylinder units. Thus, a centering of the screwing devices in the longitudinal direction corresponding to the actually existing threshold distances is achieved »

The invention will be explained in more detail in the following exemplary embodiment. The individual drawings show:

Fig. 1, the side view of the arranged on the carrier vehicle screwing

Fig * 2 the corresponding plan

Figures 1 and 2 show the chassis frame 1 of Trägerfahl zeuges, in the machine group in pairs per rail of the track to be processed three screw 2 ', 2 ^{! F} and 2 ^{! Il are} assigned * The Mas chine ngrup.pe consists of the frame. 3 and the longitudinal bars 4 'of which guide the carriages 5% 5 ^ft and 5 ¹ ' ¹ displaceable in the track longitudinal direction with the screw

te?

Facilities 2 *, 2 ^fl and 2 serve ^IIS . It is inagesamt on the Führungssäuleη 6, the pivot points 7 and the cantilevers 8 connected to the chassis frame 1 of the host vehicle «By means of piston-cylinder unit 9, the machine group is height adjustable, so that can be made .Working and transport position. It is laterally pivotable about the pivot point 7 against the rail head «In frame 3 there are two guide rollers 10 which run on the rail head inner edge and thus allow the centering of the machine group on the pivot points 7 transverse to the track longitudinal direction.

The each carriage 5 ', 5 ^tf and 5 ¹¹¹ pairwise associated screwing 2 ¹ , 2 ¹ '. and 2 ¹¹¹ are coupled to each other, but adjustable in their distance from each other transversely to the track axis via lockable guides 11, so that either the treatment of the hook bolts and the significantly further apart sleeper screws is possible ·

The carriage 5 'is provided with a Vorfahrahomatik 12 which controls an advancement of the machine by three thresholds. Furthermore, the carriages 5 ¹ '5''and 5 ^{lft are assigned} the stops 13', 13 '' and 13 * * ^f '. The stops 13' ₅ 13 '' and 13 '''are ^actuated by the piston-cylinder units 14', 14 '. and 14 ^{ftl are} pivoted against the fastening ^means after advancing the machine and serve to limit the longitudinal movement during centering. The three carriages 5 ', 5 ^lf and 5 ^{f' t shown in the exemplary embodiment} and thus the three screw ^devices 2 ^f , 2 ' ¹ and 2 ' ^te per machine group are interconnected by the piston-cylinder units 15 and 16, which have a different diameter and thus have different forces at the same pressure ·

By means of the Vorfahrautomatik 12 of the carriage 5 ¹ and thus the screw 2 * coarse centered «After pivoting the stops 13 ', 13" and 13 ^tte on the piston-cylinder Einhsiten 14',

14 '' and 14 ^tfl carried pressurization of KoIben-Cylind units 15 and 16. When pressure is the larger piston-cylinder unit 15 is always the first carriage 5 'and 5 ¹ ", and thus the screwing means 2 * and 2' ¹ in Center the track ^{longitudinal direction} and then ^pull the smaller piston-cylinder unit 16 the carriage 5 ^llf with the screwing ^device 2 * * * to the required ^distance to the center. Thereafter, the stops 13 ^f , 13 ¹ 'and 13'"swing back and the screwing 2 ', 2' ¹ and 2 ^{! Fi} lowered for performing the respective work

Claims (1)

invention claim Centering device for track-mounted screwdrivers for carrying out screwing in railway superstructure with each rail of the track on a carriage in pairs and against each other with piston-cylinder units longitudinally displaceable screw means, characterized in that the
Tightening devices longitudinally slidably connecting piston »cylinder units (15» 16) have different diameters © gftaE ^ ^ si.i .aLJ ^