FR2673586A1 - MACHINE FOR THE MAINTENANCE OF A CONTACT LINE. - Google Patents

Abstract

The invention relates to a machine for the maintenance of a contact line. This machine comprises a machine frame supported on undercarriages on rails, a lifting platform (10) adjustable in height as well as a displacement device (12) adjustable by at least one drive (16, 17, 19 ) comprising a displacement member (18) for gripping and transversely moving a contact wire (26) of the contact line (2). This machine is characterized in that the displacement device (12) is arranged on the lifting platform (6) so as to be able to obtain automatically with the height adjustment of the lifting platform (10) also a displacement in height of the displacement device (12). The invention is applicable to the maintenance of railways.

Description

The present invention relates to a machine for maintaining a line

  contact or catenary comprising a machine chassis supported on undercarriages on rails, a lifting platform adjustable in height as well as a displacement device adjustable by at least one drive comprising a displacement member for gripping and moving transversely a contact wire

  or carrying cable stretched from the contact line.

  Such a known machine designated by contact line maintenance vehicle is equipped with a displacement device produced in the form of a hydraulic lifting rod for the transverse displacement of a carrying cable or contact wire stretched over masts. of contact line This displacement device is pivotally disposed on the machine chassis and is connected at its free end to a roller intended for gripping and supporting the carrying cable or contact wire. Such a known lifting rod has, in its extended state, a length of approximately 8 m, the displacement member located on the extreme side produced in the form of a roller which can pivot in an area of approximately 3 m transversely to the longitudinal direction of the machine This has the consequence that this rod lifting, in use, is complicated to handle and must be retracted at least partially, to avoid a disruptive influence on other work, at each that directly after

transverse displacement.

  The object of the present invention is to create a machine of the type described above allowing simplified transverse movement of the contact wire or carrying cable.

  taut with a relatively uncomplicated construction.

  This object is produced according to the invention in that the displacement device is disposed on the lifting platform. This gives rise to the particular advantage that the displacement device can be raised, without having fitted a lifting device. clean, simply by lifting the lifting platform, automatically, substantially at the working height necessary for its use Consequently, the displacement device can be made more simply with an uncomplicated construction and shorter in terms of concerns its length The reduced length of the movement device also allows easier handling with a faster transition from the rest position to the working position Since the transverse movement by means of the movement device now takes place directly in the area of work of the workers being on the lifting platform, it is also possible to pivot in a way faster and more precise the carrying cable or wire

  contact by closely monitoring the movement operation.

  According to advantageous features of the invention, the displacement device is made so as to be able to rotate about a vertical axis by means of a drive, and the vertical axis of the displacement device is arranged so as to s extend coaxially to a vertical axis of the lifting platform This allows independent positioning of the rotation position of the lifting platform of the movement member connected to the movement device to effect the desired transverse movement of the wire contact or carrier cable in a extending direction

  perpendicular to the contact wire.

  According to other advantageous features of the invention, the displacement device consists of a roughly vertical support part arranged so as to be able to rotate around the vertical axis, at the upper end of which is articulated a crane arm can be extended telescopically by means of a drive, and at the end of the crane arm is articulated the displacement member The crane arm can rotate around a pivoting axis extending parallel in the plane of the lifting platform and is connected to a pivoting drive supported on the support part, which makes it possible to avoid a transverse displacement of the lower part of the movement device which annoys the workers on the lifting platform , while the crane arm in the upper area can be used freely for the desired transverse movement. According to another advantageous characteristic of the invention, the pivoting area of the crane arm around the pivoting axis is produced from a position extending parallel to the plane of the lifting platform to a position forming with the plane an angle of about 1200, which allows, in the case of a pivot axis extending in the longitudinal direction of the machine or in the longitudinal direction of the catenary, a transverse movement without problem of the carrying cable or contact wire avoiding a pivoting movement in

arc.

  According to another advantageous characteristic of the invention, the displacement member fixed to the free end of the crane arm is produced roughly in the shape of a U, which ensures safe transverse movement of the carrying cable or the contact wire. avoiding relative longitudinal movement between the contact wire and the member

of displacement.

  Finally, according to still other advantageous features of the invention, the displacement device is constituted by a support which can be extended telescopically and fixed on the lifting platform, support at the free upper end of which is fixed the displacement member, this displacement member is placed in a guide device extending perpendicular to the longitudinal direction of the support and is connected to a displacement drive, the support being arranged on the lifting platform so as to be able rotate around a vertical axis and is connected with a rotary drive, which makes it possible to obtain a displacement device produced in a particularly simple manner for the transverse displacement of the carrying cable or contact wire having the mentioned advantages resulting from

  the arrangement on the lifting platform.

  The invention will be better understood, and other aims, characteristics, details and advantages thereof

  will appear more clearly during the description

  Explanatory which will follow made with reference to the accompanying schematic drawings given solely by way of example illustrating two embodiments of the invention, and in which: FIG. 1 is a side view of a machine for the maintenance of a contact line comprising a displacement device disposed on a lifting platform; Figure 2 is an enlarged detail view of the displacement device with the lifting platform according to arrow II in Figure 1; and Figure 3 is another embodiment

a displacement device.

  A machine 1 represented in FIG. 1 also designated by motor wagon with mobile platform for the maintenance of a contact line 2 has a machine chassis 4 with a wagon superstructure 5, said machine chassis being supported on undercarriages on rails 3 A motor 7 is provided for supplying energy to the various drives as well as a locomotion device 6 On the wagon superstructure 5 is located a caliper for measuring

  the contact line 8 as well as a work cabin 9.

  A lifting platform 10 is made adjustable in height using a vertical drive 11

  and is connected to a displacement device 12.

  This displacement device 12, as shown in FIG. 2, is produced in the form of a small crane comprising a roughly vertical support part 13 and a crane arm 14 This is placed on the support part 13 so as to be able to rotate about a pivoting axis 15 and is connected to a pivoting control device 16 At the opposite end to the pivoting axis 15, the crane arm 14 made so as to be able to be telescopically extended by the intermediary of a drive 17 is connected to a displacement member 18 made approximately in the shape of a U The vertical support part 13 of the displacement device 12 can rotate around a vertical axis 20 by means of a drive 19, the vertical axis extending coaxially to an additional longitudinal axis 21 of the drive 11 The lifting platform 10 can rotate around said longitudinal axis 21 by means of a drive rotating 22 The reference numeral 23 designates a control device fixed to the lifting platform 10, making it possible to apply both the drives 11 and 22 for the height adjustment and the rotation of the lifting platform 10 as well as the drives 16, 17 and 19 for

  adjustment of the displacement device 12.

  To correct the lateral position of a contact wire 26 fixed and tensioned by means of an anti-swaying device 24 on a bracket 25, the displacement device 12, by means of the power supply of the drive 19, is rotated until 'so that the pivot axis 15 extends in the longitudinal direction of the contact wire 26 Then, by biasing the drives 16 and 17, a corresponding height adjustment is made of the displacement member 18 until that the latter comes against the contact wire 26 (see corresponding position in dashed lines in FIG. 2) After having undone the fixing 27 connecting the anti-swinging device 24 with the jib 25, the crane arm 14 is pivoted around its pivot axis 15 until the correct lateral position of the contact wire is reached relative to the middle of the track As soon as the fastener 27 is tightened, the

  displacement 18 can be separated from contact wire 26.

  As suggested by arrows in Figure 2, the crane arm 14 can be pivoted from a rest position, extending parallel to the plane of the lifting platform 10, at an angle of up to 1200 about

  in the desired working position.

  An additional variant shown in FIG. 3 of a displacement device 28 is also fixed to a lifting platform 35 of a machine 36 produced in the form of a motor wagon with a mobile platform. This displacement device 28 consists essentially of a support 31 adjustable in height by a drive 30 and able to rotate about a vertical axis, said support being connected to a guide device 32 extending perpendicular to the longitudinal direction of the support 31 In this device guide is disposed so as to be transversely displaceable a displacement member 33 made in the shape of a U to grip a contact wire and is connected to a displacement drive

  34 in the form of a spindle command.

Claims (8)

R E V E N D I C A T I O N S   1 machine for the maintenance of a contact or catenary line comprising a machine chassis supported on undercarriages on rails, a lifting platform adjustable in height as well as a displacement device adjustable by at least one drive comprising a displacement member for gripping and transversely displacing a contact wire or carrier cable stretched from the contact line, characterized in that the displacement device (12) is disposed on the lifting platform (10).   2 Machine according to claim 1, characterized in that the displacement device (12) is produced so as to be able to rotate about a vertical axis (20) by   through a drive (19).   3 Machine according to claim 2, characterized in that the vertical axis (20) of the displacement device (12) is arranged so as to extend coaxially to a   vertical axis (21) of the lifting platform (10).   4 Machine according to one of claims 1 to 3,   characterized in that the displacement device (12) consists of an approximately vertical support part (13) arranged so as to be able to rotate around the vertical axis (20), at the upper end of which being articulated a crane arm (14) which can be extended telescopically by means of a drive (17), and at the end of the crane arm being   articulated the displacement member (18).   Machine according to claim 4, characterized in that the crane arm (14) can rotate about a pivoting axis (15) extending parallel to the plane of the lifting platform (10) and is connected to a drive   pivoting (16) supported on the support part (13).   6 Machine according to claim 5, characterized in that the pivoting area of the crane arm (14) around the pivot axis (15) is formed from a position extending parallel to the plane of the lifting platform ( 10) to a forming position   with the plane an angle of about 1200.   7 Machine according to one of claims 1 to 6,   characterized in that the displacement member (18) fixed to the free end of the crane arm (14) is roughly U-shaped.   8 Machine according to one of claims 1 or 2,   characterized in that the movement device (28) consists of a support (31) which can be extended telescopically and fixed on the lifting platform, support at the free upper end of which is fixed the displacement member (33).   9 Machine according to claim 8, characterized in that the displacement member (33) is placed in a guide device (32) extending perpendicular to the longitudinal direction of the support (31) and is connected   a displacement drive (34).   Machine according to one of claims 8 or 9,   characterized in that the support (31) is arranged on the lifting platform (35) so that it can rotate about a vertical axis (29) and is connected with a rotating drive.