FR2587381A1 - DEVICE FOR CONNECTING THE SECTIONS OF A TRACK OF A SUSPENDED MONORAIL TRACK - Google Patents

Abstract

IN A DEVICE FOR CONNECTING THE SUSPENDED MONORAIL TRACK TRUNKS 1 OF A SUSPENDED MONORAIL TRACK, A COUPLING INCLUDES A SUSPENSION BRACKET 13 EXTENDING ON A CUNEIFORM JOINT 12 BETWEEN TWO SUCCESSIVE TRACKS 2, 3 RESPECTIVELY EQUIPPED WITH UNINTERRUPTED ROOF PANELS 5, 6 ABOVE THE UPPER WINGS 4. THE CALIPER 13, PROVIDED AT ITS ENDS WITH ARTICLE ZONES 24 FOR SUSPENSION MEANS, IS WELDED TO THE ROOF PANEL 6 OF L 'ONE 3 OF THE TRUNKS OF RAIL AND IS ARTICULATED, WITH LIMITED PIVOT, ON THE ROOF PANEL 5 OF THE OTHER TRUNCON 2.

Description

DEVICE FOR CONNECTING THE SECTIONS OF A TRACK

SUSPENDED MONORAIL TRACK

  The present invention relates to a device for

  connection of the sections of a running rail, of cross section

  shown substantially in I, of a suspended monorail track or track, in particular in mining operations

  underground or in tunnel construction, this

  positive having, in the vicinity of the abutment joints, a respective articulation with horizontal pivot axis

  located on the lower edge of the running rail and,

  above the upper wings, a coupling which connects the successive sections of rail to each other, with

limited tilting ability.

  A connection by butt joints of this kind is part of the prior art materialized, for example, by the

  patent DE-C-2 145 300. This device comprises, on the faces

  upper and lower ends of the rail sections,

  welded articulation parts used on the one hand to

  articulated coupling of said sections and, on the other hand, to

  the suspension of the running rail on the rock or on the structure

  support structure. Although such a connection device has basically proven itself in practice, it nevertheless has the drawback of requiring complexity.

  relatively large for the specific realization of parts

  these rather complicated articulation, and for fixing these parts to the upper and lower wings of the rail sections. First of all, these are basically mass-produced parts, which must be produced independently of each other and must be kept pending

  welding. The joining of the articulated parts by welding

  lation must be conveniently carried out using corresponding welding jigs, to ensure that said articulation parts are also brought by welding to the location ensuring impeccable coupling. In addition, interventions must be carried out by

  a qualified workforce, with corresponding care.

  The subject of the invention is a device for connecting the

  type described in the preamble to this brief, perfection-

  born in such a way as to reduce both the manufacturing complexity and the installation complexity of the coupling elements. In accordance with the invention, this object is achieved by the fact that the coupling comprises a suspension stirrup extending over the wedge-shaped abutment joint between two successive sections of rail provided, each time, with uninterrupted roof purlins at above the upper wings, said stirrup, provided with two articulation zones situated at its ends and intended for suspension means, being welded to the roof purlin of one of the sections of rail and being articulated, with the possibility of limited pivoting, on the

  roof failure of the other section of rail.

  The essential characteristic of the inventive idea re-

  side first of all in the fact that regardless of the

  realization of the joint located at the lower end

  re the butt joint, only small welding passes are required to secure the coupling elements connecting the rail sections. Stirrup

  of suspension which spans the abutment joint is only-

  welded to the roof failure of one of the rail sections,

  and connected with tilting limited to the roof failure of the

  be stretch. Two articulation zones, offset one of

  the other in the longitudinal direction, are provided to cooperate

  rer with suspension means. These articulation zones,

  located at the ends of the hanger with deca-

  approximately uniform in relation to the fi-

  fixing to the roof breakdown, then guarantee a distribution

  uniform tion, at several points of suspension, of the con-

  traces imposed on the running rails by the transport which takes place. It is also conceivable to provide, in addition to the articulation zones at the ends, at least one

  other articulation zone, for example central, on the extension

  longitudinal due of the suspension bracket.

  Another advantage is that in all

  case, one and only one piece (i.e.

  board) is fixed to a section of rail. Consequently, unlike the known articulation parts, it is not

  special care must be taken to ensure that the

  respectively adequate ticulation are welded to the ex-

  rail section hoppers. Confusion is thus excluded.

  The method of articulation according to the invention guarantees to a certain extent a suspended connection of the rail sections to be coupled, so that the junction articulation is largely relieved of the weight of the rail sections and of the loads transported, so that she can be

  of a relatively simple design.

  According to a particularly advantageous embodiment

  tagger of the invention, the suspension bracket can be U-shaped, and cover the roof purlins on either side of the abutment joint. In this case, by cooperating with the roof purlins of the rail sections, the branches

  of the suspension bracket ensure centering, with alignment

  precise longitudinal length, sections of rail in the vicinity

  abutment joint. The horizontal frame connecting the-

  said branches can then extend over the entire length of the hanger, or only over part of this length. In addition, it can be of realization

straight or curvilinear.

  A preferred solution, ensuring the limited pivot articulation of the suspension bracket on a section

  of rail, consists of oblong holes that correspond

  dant mutually and extending on an arc of a circle, around the pivot axis of the junction joint, can be shaped in the branches of the suspension stirrup and be crossed, with relative movement, by a pin of articulation crossing right through the roof breakdown

  of a section of rail. Such a design requires only-

  ment a low manufacturing and assembly complexity and, combined with the wedge butt joint, it ensures a vertical pivoting ability of the rail sections relative to each other, by an angle of several degrees in both directions. The axis of the hinge pin can

  extend in the plane passing through the axis of the vertical tenon.

  However, one can also consider forms of realization

  tion in which the articulation pin is sensi-

  far away, to the left or to the right, from the axis

of the vertical post.

  According to another embodiment of the device according to the invention, there may be provided, on the upper face of the horizontal member of the suspension yoke, a vertical tenon passing through essentially centrally,

  with free swiveling capability, a pre-

  feeling, at its ends, articulation zones for the suspension means. The advantage obtained consists in that the support member can, with a large autonomy, adapt to the local position of the abutment joint relative to the neighboring points of articulation to the rock or, respectively, to the structure. support. The vertical post can then

  be connected in one piece to the hanger. Judi-

  cieux, it extends exactly above the fixing of this stirrup to the purlin of the rail section. The

  distance separating the articulation zones from the transverse plane

  vertical sal passing through the axis of the vertical post can be

  identical or different size.

  According to the invention, the vertical post can be

  engaged, via a socket in the form of a sec-

  spherical tor, in a bearing bowl shaped on the upper face of the support member and adapted to said

  socket. This further improves the possibility of

  flexibility of adjustment, with mobility in space, of the sections

  rail vis-à-vis the suspended support member, for example

  ple, to strands of chain links, round. The socket is conveniently flattened on its upper face, and is removably connected to the vertical post by means of a

transverse key.

  According to the invention, the support member can be made substantially U-shaped and be provided with a channel

  longitudinal open upwards, a buffer element, surrounded

  rant the vertical post, being interposed between the socket of this vertical post and a collar formed at one end. These characteristics make it possible to reduce the abrupt stresses which are imposed on the sections of rail in the vicinity of the abutment joints, during the overlying circulation of the transport vehicles, and which are naturally increasingly greater because the speeds of transport are constantly increasing. This embodiment also makes it possible to obtain a reduction in the stresses acting on the support or on the rock. The socket is then

  arranged in free movement on the vertical post.

  It is also possible to envisage incorporating, in the suspension means, intermediate pieces which have shock absorbing properties and which

  are provided in addition to the above-mentioned buffer element, or

  place such an element. In this way also, the constraints

  your sudden appearing in the region of the joints of abou-

  can be considerably reduced, as well as

  their harmful consequences for the support and the rock.

  According to other features of the invention, the

  vertical post can cover the hanger bracket at the same time

  of a fork and be pivotally connected, via the

  median of the articulation pin, both to the suspension stirrup and to the failure of the roof of the rail section. These characteristics guarantee even greater angles of inclination between rail sections without any problem.

and the support member.

  The invention will now be described in more detail.

  by way of non-limiting examples, with regard to the

  attached sins in which: Figure 1 is a side elevation partially in section, showing two variants of a device for connecting abutment joints of two rail sections of a suspended monorail track; Figure 2 is an illustration seen in the direction of arrow II in Figure 1;

  Figure 3 is a side elevation with sectional view

  tielle of another embodiment of a connecting device; and Figure 4 is a vertical cross-section and fragmentary

  mentally, along line IV-IV of Figure 3.

  In FIGS. 1 to 4, the reference numeral 1 designates a running rail of a suspended monorail track or track of underground mining. Rail 1 consists of a series of sections 2 and 3 coupled to each other

with limited articulation.

  Each section 2, 3 of the rail has a sensitive section

  cleanly in I and has, over the upper wings 4, a roof failure 5, 6 uninterrupted over the entire length

  of a section 2, 3. The thickness of the tip 5, 6 is dimen-

  portion substantially equal to three times the thickness of a support core 7 between the upper wings 4 and wings

  lower 8. Its height corresponds approximately to me-

  third of the distance between the upper faces of the

  upper wings 4, and the undersides of the wings in-

8.

  As illustrated in FIG. 1, an end face 9 of the section

  çon de rail 2 is sectioned at right angles to its longitudinal extent. An end face 10 of the neighboring section 3, on the other hand, is produced with an inclination of an angle i, measuring approximately 7. The extreme faces 9 and 10

  meet on the lower edge of the running rail 1.

  There is also a coupling joint 11 with a horizontal pivot axis oriented transversely,

  the realization of which is not illustrated in detail.

  The butt joint between the rail sections 2 and

3 is marked with 12.

  In the embodiment according to FIG. 3, the two end faces 9 ′ and 10 ′ of the rail sections 2 and 3, which delimit a butt joint 12 ′, are produced inclined relative to the longitudinal extent of said sections 2 , 3, and they extend each time in the same direction from the joint 11. Again, the opening angle

  O of the wedge abutment 12 'is approximately 7.

  In the embodiment of Figures 1 and 2, the ac-

  coupling, at the height of the roof purlins 5 and 6, has a suspension stirrup 13 extending above the wedge abutment joint 12. This stirrup 13 is U-shaped, its branches 14 trapping laterally over the

breakdowns. roof 5 and 6.

  The suspension stirrup 13 is subjected by welding to the roof purlin 6 of the rail section 3. To this end, the branches 14 are configured in tongues. In this way, sufficiently long weld beads are obtained, with little use of material. In the region of the other section of rail 2, the branches 14 of

  the stirrup 13 are pierced with oblong holes 15 which correspond

  lay mutually and extend over an arc,

  turn of the pivot axis of the joint 11 or coupling. The oblong holes 15 are crossed, with relative movement, by an articulation pin 16 permanently locked in the roof purlin 5 of the section 2

(figure 1).

  A vertical post 18 is fixed to the upper face

  a horizontal member 17 of the suspension bracket 13.

  In this embodiment, the vertical post 18 has-

  from at one end, to the left of its pivot axis 19, a collar 20 radially widened; it also passes through the body 21 of a support member 23 made of a substantially U-shaped configuration, provided with a longitudinal channel 22 open upwards. The body 21 of the member 23 extends between end zones of articulation, formed by holes

transverse 24.

  A buffer element 26 surrounding the vertical post 18 is

  interposed between the radial collar 20 and a bush 25

  located in the form of a spherical sector on its underside, this

  element 26 consisting of a material endowed with elastic flexibility

  tick, such as rubber. The radial collar 20 can be removably connected to the vertical post 18. The socket 8.

is movably mounted on this post 18.

  In the embodiment of Figure 1, right

  pivot axis 19, only a bushing is provided.

  the 25 'which is removably connected to the vertical post 18 by means of a transverse key 27 and which, like the socket 25, is introduced into a bearing bowl 28, 28' shaped on the upper face of the horizontal body 21 and adapted to the underside of the socket

  , 25 ', in the form of a spherical sector.

  Compared to the embodiment of Figures 1 and 2, the embodiment according to Figures 3 and 4 is distinguished only, in principle, by the fact that a

  vertical post 18 'can pivot vis-à-vis a suspension bracket

  13 'board. To this end, the lug 18 'covers the stirrup 13' with a fork 29. The pivoting connection with the stirrup 13 '

  or, respectively, with the rail section 2, is assu-

  created by means of a hinge pin 16 'which also establishes the articulated connection between the stirrup

13 'and said section 2.

  It goes without saying that many modifications can

  be made to the device described and shown, without

from the scope of the invention.

Claims (7)

  1. Device for connecting the sections of a road rail   Lement, of section configured substantially in I, of a track   or suspended monorail track, especially in operations   underground mining or tunnel construction   nels, this device having, in the vicinity of the joints   abutment, a respective articulation with pivot axis-   horizontal located on the lower edge of the rail   and, above the upper wings, a coupling   which connects the successive rail sections to each other   sif, with limited tilting ability, charac-   terrified by the fact that the coupling includes a suspension bracket (13; 13 ') extending over the wedge joint   abutment (12; 12 ') between two sections of successive rail   sifs (2, 3) provided, each time, with endless roof purlins   terrompues (5, 6) above the upper wings (4), said stirrup, provided with two articulation zones (24) situated at its ends and intended for suspension means, being welded to the roof purlin (6 ) from one (3) of the rail sections and being articulated, with limited pivoting ability,   on the roof purlin (5) of the other section of rail (2).   2. Connecting device according to claim 1, characterized in that the suspension bracket (13; 13 ') is made of U-shaped conformation, and covers the roof purlins (5, 6) on either side abutment joint (12; 12 ').   3. Connecting device according to claim 1 or   2, characterized in that oblong holes (15) correspond   mutually responding and extending over an arc of a circle, about the pivot axis of the junction or coupling articulation (11), are formed in the branches (14) of the suspension yoke (13; 13 ') and are crossed, with relative movement, by a hinge pin (16; 16') crossing right through the roof fault (5) of a section rail (2).   4. Connecting device according to any one of the re-   vendications 1 to 3, characterized in that there is provided, on the upper face of the horizontal member (17) of the suspension yoke (13; 13 '), a vertical stud (18; 18') passing through essentially centrally, with free pivoting ability, a support member (23) having, at its ends, articulation zones (24) for the means of suspension.   5. Connecting device according to claim 4, ca-   characterized by the fact that the vertical tenon (18; 18 ') is engaged, by means of a socket (25; 25') in the form of a spherical sector, in a bearing bowl (28; 28 ') shaped to the upper face of the support member   (23) and adapted to said socket (25; 25 ').   6. Connecting device according to claim 4 or, characterized in that the support member (23) is made configured substantially in a U and has a channel   longitudinal (22) open upwards, while an element-   buffer (26), surrounding the vertical post (18), is interposed between the sleeve (25) of this vertical post (18) and a collar extreme (20).   7. Connection device according to any one of the re-   vendications 3 to 6, characterized in that the vertical tenon (18 ') covers the suspension stirrup (13') at the   like a fork and is pivotally connected, via   median of the articulation pin (16 '), both to said suspension yoke (13') and to the roof failure (5) of the section of rail (2).