FR2511077A1 - ARTICULATED CHAIN CONVEYOR, MOUNTED ON A MINE OR TUNNEL GALLERY SERVING ROW - Google Patents

Abstract

CHAIN CONVEYOR FOR MINE GALLERY OR TUNNEL. THE DEPOSITS PRODUCED ARE TRANSFERRED TO A CONVEYOR 1, INTERMEDIATE, WHICH DELIVERS THEM TO A BELT CONVEYOR 8. CONVEYOR 1 OR CONVEYOR TRAIN CAN BE MOVED A SHORT DISTANCE; IT INCLUDES CHUTE TRUNKS THAT CAN PIVOT, ONE WITH RESPECT TO THE OTHERS, AN ENDLESS CHAIN CARRYING DRIVE CLAMPS, A DRIVE STATION 6, A GATE REVERSING STATION 17 AND A MOBILE RAME 2, CARRYING THE CHUTE TRUNKS, AND COMPOSED OF PLATES 3 ATTACHED TO ONE TO THE OTHERS. STOPS LIMIT THE AMPLITUDE OF LATERAL AND LONGITUDINAL MOVEMENTS OF THE CHUTE TRUNKS ON THE PLATES. CONNECTED TO A TRACTION AND GALLERY DRILLING MACHINE 11, THE ROW CAN IMMEDIATELY FOLLOW THIS MACHINE AT A PREDETERMINED RATE BY USING A CURVED TRACK. APPLICATION ESPECIALLY IN UNDERGROUND MINES.

Description

The present invention relates to a chain conveyor capable of

  follow a winding path, especially for

  to evacuate the cuttings produced during the drilling of

  mines or tunnels and including sections of govern-

  interlopers which can pivot at a certain angle to each other, an endless chain carrying

  place drive lugs and

  stretching and reversing.

  As part of the progress of mechanization, the

  mine tunneling was mechanized by the use of

  sectioning machines These machines have an arrow which carries at its upper part a rotating cylinder through which it is possible to cut down at each pass the desired section of the gallery The cuttings are collected by a solidarity conveyor of the machine and then

  transferred to an intermediate conveyor which transmits them

  end, through a tape bridge, or eventual

  without it, on the gallery conveyor,

  which is usually a conveyor belt.

  Because of the operations that must be performed behind these slaughtering machines, it is not possible to use them sufficiently. This is due, among other things, to the fact that, in order to limit the length of the machine itself, he

  an intermediate conveyor must be used, which must be

  ge as the front of the face advances The chain conveyors that serve as intermediate conveyors are not

  able to follow the elbows, especially

  of the galleries, and they further complicate

  because they have to be periodically lengthened, shortened

  or advance them The operations required for this purpose

  forced to stop the percemert machine.

  at the moment of the attack on a new gallery that the com-

  the cost of ancillary work is very high, because the pulpit must be periodically extended until it reaches its final length and because there is no optimal location for other desiccation and draining devices The piercing machine must therefore be moved very often and on a

  small distance until it has reached a

  foundry that allows to arrange one behind the other

  all the equipment in the new gallery.

  Chain conveyors capable of adapting to a curved path are already known (DE-C 1,278,380, DE-AS 1,048,223), but these are either short,

  capacity for the transport of fluent materials,

  voyeurs that can be curved up the ability to

  curve adaptation is achieved by a pin connection,

  whose point of articulation lies in the long axial plane

  of the conveyor, or by connecting the sections of government

  burbot by means of catkins fixed to the outer faces of the lateral or side profiles of each of these sections This is an expensive conformation, which forces the conveyor to be mounted

  in the position or following the curve in question each time.

  These conveyors are not able to follow a path

winding.

  the invention relates to a chain conveyor

  ble for service and evacuation, able to follow curved paths and allowing to use at full efficiency

  machines during the drilling of galleries.

  According to the invention, the articulated chute sections cooperate with a mobile train consisting of carrier chassis coupled to each other, on which they can move laterally and longitudinally over a limited distance, the train, the ability to adapt one way

  curve corresponds to that of the conveyor, being coupled to a

likewise of traction.

  A chain conveyor of this kind can negotiate

  because the short sections of chute have, in a

  to 900 a radius of curvature of 4 meters and because it can move to a certain point laterally and in the direction of its length on the oar, when both run an elbow at 900 The entire train of The trolley is coupled to the traction apparatus and is pulled by it so that the cuttings are always optimally discharged onto the conveyor. This train can easily be shaped in such a way that it is possible to advance the dedusting, ventilation and energy supply devices in

  same time as the service train.

  energy supply and supply are already

  This type of train is coupled to a train and can follow a curved path. The dust apparatus is similarly shaped and assembled in a row depending on the amount of dusting required during the drilling of the tunnel. particularly advantageous to use for the chain conveyor conventional profiled troughs, each short enough to give the predetermined radius of curvature The radius of curvature that can be obtained can be modified by using longer trunking sections or shorter The length

  sections and their relative inclination angle are of

  determined with respect to each other so that it is possible to cross curves of very small radius, up to 3 meters to obtain for an elbow

  at 900 the radius of curvature of 4 meters, usually

  purpose of the drilling of a gallery, the chute sections have, in accordance with the invention, a length of about 285 mm and

  can rotate about 40 relative to each other.

  According to another characteristic of the invention, for

  avoid defiling the gallery with debris falling from the

  voyeur, even in the event of a surge of flow,

  With one side a recess cooperate with the chute sections and, at the location of their recess, they are superimposed over a length greater than the gap.

  maximum distance between two sections In this way,

  centes overlap enough, even in curves, so that

2511077 J

  the days that form between adjacent chute sections are covered In this way, the curve transport is not

unaffected.

  It is known in the gallery conveyor technique that there is a high energy loss by fmt-

  when the chute sections do not move forward

  This wear is in the range greatly attenuated by the fact that only a few sections are seen during the crossing of a curved plane. Moreover, it is possible to obtain advantageously the compensation of length required by placing forward of the drive stations and reversing of the telescopic chutes This ensures the uniformity of tension of the r

  So that the tension of the chain remains avantegemen-

  the telescopic chutes can be adjusted automatically by means of actuators actuated in service according to the initial value of

  this working pressure tension of these cylinders can be di-

  and adjusted to adapt at any time the voltage of the

cha ne to the needs.

  It turned out that with a service train

  such a chained voyeur of this kind having a usual length, the

  telescopic chutes should advantageously be about 260 mm This ensures the constae of

tension of the chain.

  In one embodiment of the invention, the X-X

  The reversing valve has the configuration of a chute

  telescopic, which simplifies the constitution of the convoyeor.

  In order to reduce the wear of the cleats

  particularly during the transport of partial

  In this case, according to the invention, settling mechanisms which can be adjusted in a lug co-operate with the drive station and / or the shaft.

  reversing position These mechanisms make it possible to

2511077 To

  finish at any time and in a particularly

  requested the optimum speed of the chain.

  To reduce wear and tear, especially during

  In a curved manner, the drive lugs attached to the chain have at their ends guide lugs with the same conformation on both sides. A drive lug of this type is particularly suitable for transport on a curved path, but can also be used advantageously in the same way for the normal operation of the conveyor The method of fixing the cleat to the chain can advantageously

  remain unchanged and therefore comply with the state of the art.

  In mines, we use, especially for transpor-

  materials, temporary gallery trains or "vo-

  "We put on the sole a flying track composed of

  easy to arrange, which is a simple job These trains can also pass easily on curves to 900 In accordance with the invention it is proposed that the train

  consists of train wagons, including

  These arrangements are articulated very close to the respective axle This arrangement of the articulation of the coupling bars on the various wagons makes it possible to optimally adapt the curvature of the track to that of the conveyor. The two sets can therefore be advantageously used to cross the curves. The chain conveyor can not slip unexpectedly and fall off the platform of the train and its lateral displacement is limited because the lateral stop elements of the cars are

  ranchers at a certain distance from each other

  These ranchers can be rotating, so as to guide

  optimally the conveyor deformed the passage of the elbows.

  Since it is necessary to place the flying track between the traction apparatus and the gallery gear beforehand, a certain distance must always be maintained between them. For this purpose, according to the invention, a pallet is articulated on the cooperating wagons. with this traction device and is 2 S 11 1 O 077,

  connected on both sides by a pivot joint This pa-

  lette can be connected to the traction device by a ball joint housed in a suitable seat.

  properly conveyed, the conveyor of a machine

  for example in the conveyor belt

  the point of articulation between the pallet and this

  china is always above the point of discharge of these cuttings The chain conveyor is advantageously guided by a buttonhole of the pallet, which makes it possible to compensate

  the variations in length that manifest themselves.

  According to the invention, another suitable way of

  connect the chain conveyor and the traction

  to connect the pallet, or the last car, through the

  -re a hydraulic cylinder, a fork secured to this ap-

  It is thus possible to adjust the dis-

  which separates said apparatus from the conveyor (or ream) by pulling out or retracting the piston rod

  according to the need for this purpose, it is particularly

  tageux to connect this piston rod and the ends of the fork by means of a sliding pad under the palette of the

  so, if two hydraulic cylinders are hinged from both sides

  the displacements of the rods of their pistons are synchronized

  nized. According to another embodiment of the invention,

  the train may run on the running rails of a trans-

  aerial monorail carrier, the support platforms of which are

  ticulated in their middle, by means of pendulums,

  on the trolleys and have the configuration of sup-

  U-shaped ports with double articulation passing under the chute sections of the conveyor It is thus possible advantageously to circulate the whole train on a rail arranged near the

  roof The sole of the gallery can remain unobstructed

  for the service train can also be used in

  following for transport in the gallery and so can stay

  in order to give the suspension, the sections

25110 Z 7 he

  trunks and the entire chain conveyor the

  necessary, it is intended according to the invention to

  on the supports which carry these sections of the plates of

  cord, connected between these supports by pivot joints To further optimize the conveyor, a beam parallel to the longitudinal axis of the latter and connecting

  Removable two U-shaped brackets are mounted between each

  lancier and these supports on each side of the running rail.

  A cha-conveyor shaped in this way and constituting a service train can advantageously follow paths

  curves, ramps and descents, so that the opera-

  performed behind the piercing machine, do not interfere

  and do not limit exploitation and, for example,

the piercing machine.

  It is possible to group in particular

  simple apparatus for the evacuation, dusting,

  ventilation and energy supply in a train of des-

  serse by connecting the stanchions or the U-shaped supports by sleepers passing over the side panels The various appliances

  are arranged on these sleepers so that they can move

  rotate or rotate, so that they can follow the movements

  rowing and conveyor without interfering with each other.

  The invention is characterized in particular by

  all the necessary equipment for operations incidental to the per-

  of a gallery can be moved continuously over a predetermined distance, for example with the

  which makes the functioning of this machine optimal

  China At the branch lines in particular, it is pos-

  to continually advance a servicing train capable of

  to follow such a curved path without the need for

  that of doing a lot of preparatory work

  milking, even with a tunnel drilling machine, when a short starting tunnel has been dug and this machine has

  been set up, it is possible to start working from

  This is an important technical advance, because the one hand the perforation efficiency-by means of sectioning machines is improved and on the other hand the duration

  set-up operations at the beginning of the gallery are

  Due to the original conformation of the conveyor and the constant value of the tension of the chain, the maintenance and repair work is minimized and the conditions for security are optimal,

  since it is possible to obtain already in the gallery of de-

  share the optimal conditions of aeration and air conditioning.

  The invention will be described in more detail with reference to the accompanying drawings by way of non-limiting examples, in which:

  Figure 1 is a schematic plan of the whole.

  conveyor, Figure 2 shows a telescopic chute; Figure 5 shows a reversing station; Figure 4 is a plan of two assembled chute sections; Figure 5 is a partial elevation of a drive tab;

  FIG. 6 is a perspective view of two sections

  ducts assembled; Figure 7 is a cross section of a service train; Figure 8 shows the transfer zone between the piercing machine and the service train; Figure 9 is a partial section of a flying train car; Figure 10 is a view of a portion of a service train suspended from an air monorail; Figure 11 is a plane of the train of Figure 10; and

  Figure 12 shows the infrastructure of this train.

  FIG. 1 represents a felling machine by 2511077 i

  sections arranged near the junction of two galleries.

  The chain conveyor 1, which can move on the train 2,

  has already passed on the elbow at 900 rowing 2 consists of pla-

  support beams 3 which, in the example shown, are wagons 4, 5 of a flying gallery train. The entraining station 6 of the conveyor 1 is arranged

  in the main gallery 9, near the point of

  Conveyor belts 8 The endless chain of con-

  voyeur 1 is driven by the control device 12, which cooperates with the training station 6 and passes through the

  various sections of chute, whose length is very small.

  The traction apparatus 11 is already engaged in the new

  gallery 10 and move with it the entire train of

  te, which is composed here of the chain conveyor 1 and the train 2 The reversing station 17 is mounted on the car 5

  adjacent to the traction apparatus 11 or on a pallet

  corresponding chute sections 15, 16 of the conveyor 1

  are separated from the entry point 6 and the substation 17

  These telescopic chutes 18 are shaped so that it is possible to move one relative to the other.

  both elements 20, 21 by means of a hydraulic jack 19.

  Figures 2 and 3 show details of the

  2, representing one of these trick

  18 and its hydraulic cylinder 19 and FIG.

  trant 17 a reversing position, having the shape of a telescopic chute These chutes comprise two

  elements 20, 21, that it is possible to move one by

  port to the other via the hydraulic cylinders 19 and 23, respectively The reference 24 designates the gypsy and

  designates the protective cover Thanks to an appropriate circuit

  the cylinders 19 and 23 respectively on both sides

in synchronism.

  Figures 4 and 6 show two chute sections 15, 16 adjacent and connected to one another, which are articulated so that their metal sidewalls 27, 28 overlap at the location of a recess 29,29 ' This overlap zone 31 has the desired length so that the trunking sections 15, 16 can slide left or right, in the direction of advance 30, without it being formed by day. FIG. 5 shows a driving stop 33, in which the chain 34, composed of identical links, is inserted at their ends 37, these cleats have guide stubs 35, 36 having the same shape on both sides. see in Figure 7, the catcher conveyor 1 is disposed on the platform 45 of a: car 4 the side panels 27, 28 are fixed to the trunking sections 15, 16 by brackets

  39, as also shown in Figure 6 Rotary stanchions

  40 limits the amplitude of the lateral displacements of the con-

  voyeur on the car 4, as Figure 1 represents the rest

  very clearly the wagon 4 can move on the

  42 thanks to the rollers 43 and the rollers of

guidance 44.

  At the site of the transfer of excavated material,

  traction wheel 11 to the chain conveyor 1 (or to the train 2), it is necessary that the point of articulation between the pallet and this traction device is always always under the point of

  unloading of these cuttings In the embodiment

  presented, in particular in FIG. 8, a pallet 48 is

  linked to the first or last car 5 by a hinge 49.

  A fork 55 is connected to the traction apparatus 11 by a hinge 50 and its end 57 is connected to the rod 52 of the piston of a hydraulic cylinder 51 via a

  This arrangement makes it possible to modify the distance

  when the cylinder rod is pulled out or retracted so that the unloading orifice 56 is just above the desired location of the conveyor 1, the hydraulic cylinder 51 and its cylinder are arranged in an additional envelope in order to ensure stability The fork and its combination with the hydraulic cylinder 51 make it possible to ensure a correct transfer, even if the conveyor 1, the train 2 or the traction apparatus 11 are inclined.

  flying track 42 and to orient it in the same direction as the

  voyeur without having to stop the trac-

  11. Figure 9 shows the particular conformation that must be given to wagons 4, 5 to match the

  radius of curvature of the flying gear to that of the chain conveyor

  and thus ensure the same ability to follow curved paths The hitch pin 61 is at the height of the axle 59 of the wagon, which gives sufficient mobility to the drawbar, because the platform 45 presents this place a

  notch 60 having the desired size and opening angle.

  Figures 10 to 12 show another embodiment, in which the chain conveyor 1 can be

  to move on the running rail 63 of an installation with

  norail suspended The pendulums 64 are articulated on the chains

  These trolleys 65, 66 are, on the other hand,

  connected by tie rods 67 Beams

  69, 70 are mounted at the ends of the rockers and

  U-shaped ports 68, 71 are removably attached to these U-shaped brackets

  68, 71 pass under the chute sections 15, 16 of the

  It is useful to place on the U-shaped supports 68, 71 connecting plates 72, 73 and to connect them by pivot joints 74. It is thus possible to route the conveyor 1 and the conveyor together. ream 2

  in bends at 900 of 4 meters radius.

  It goes without saying that it is possible to make various modifications to the conveyor chain and the service train

  represented and described without departing from the scope of the invention.

tion. 2510717 j

Claims (17)

  1 chain conveyor, intended in particular to evacuate cuttings produced during the drilling of mine galleries and tunnels and comprising chute sections interconnected and pivotable relative to each other, an endless chain which carries from place to place cleats   training station, a training station and an invert-   tread, conveyor characterized in that the sections   chute (15, 16) cooperate with a mobile train (2),   set of support plates (3) coupled to each other, on which these sections can move laterally and longitudinally over a limited distance, this train, which can run on a track whose radius of curvature corresponds to that of the conveyor, being connected to a traction device (11).   2 conveyor according to claim 1, characterized in that the length of the chute sections (15, 16) and their pivoting amplitude are determined relative to each other so that the conveyor can follow curves of   very small radius, up to 3 meters.   3 conveyor according to one of claims I and   2, characterized in that, so that the chute sections (15, 16) can bid very tight bends whose radius of curvature is equal to 4 meters, these sections have a length of about 285 mm and they can rotate from 4 about one another 4 Conveyor according to claim 1, characterized   in that the trunking sections (15, 16) bear ridges   the metal (27, 28) detached from one side, which overlaps   at the location of the step (29) over a distance   somewhat greater than the maximum width of the vacuum formed be two sections.   Conveyor according to claim 1, characterized   in that telescopic chutes (18) are arranged   the coaching (6) and reversing stations (17). 2511077;   6 Conveyor according to claim 5, characterized in that the length of the telescopic chutes (18) is adjustable by means of hydraulic cylinders (19), which are actuated   in use according to the initial tension of the chain (34).   Conveyor according to claim 6, characterized in that the elements (20, 21) of the telescopic chutes.   (I 8) overlap about 260 mm.   8 conveyor according to claim 1, characterized in that the position (17) of reversal has the conformation a telescopic chute (18).   9 Conveyor according to claim 1, characterized in that the drive station (6) and optionally or in   variant the reversing station (17) are equipped with   positive drives (12) with hydraulic adjustment.   Conveyor according to claim 1, characterized in that the drive cleats (33) attached to the chain (34) have guide ends at their ends (37).   (35, 36), which have the same form of the two cs.   11 Conveyor according to claim 1, characterized in that the train (2) is composed of wagons of a flying gallery train, the hitch bars are articulated while   near the corresponding axle (59).   Conveyor according to claim 11, characterized   in that the wagons (4, 5) carry stanchions (40) which are arranged at a distance from each other and   which constitute lateral stops.   Conveyor according to one of claims 11 and   12, characterized in that a pallet (48), which is articulated on the wagons (4, 5) cooperating with the traction apparatus   (11), is connected on both sides by pivots.   Conveyor according to claim 13, characterized   in that one of the reversing (17) and driving (6) positions can slide in a buttonhole of the pallet (48).   Conveyor according to claim 13, characterized in that a hydraulic cylinder (51) connects either the pallet (48) or the last car (5) to a fork (55) secured to one another. of the traction device (11).   Conveyor according to claim 15, characterized   risé in that the rod (52) of the piston of the hydraulic cylinder (51) and the ends (57) of the fork (55) are connected via a shoe (53), which can slide under the pallet (48).   Conveyor according to claim 1, characterized   in that the train (2) can circulate on the rolling rail.   (63) of a monorail conveyor, whose support plates (3) are articulated in their middle, by means of rockers (64), on the trolleys (65, 66), these trays having the conformation of U-shaped supports (68, 71) with double articulation, passing under the chute sections (15, 16).   Conveyor according to claim 17, characterized   connected by connecting plates (72, 73), which carry the sections   trunks (15, 16) are placed on the U-shaped supports (68, 71) and are connected between these supports by pivots. (74).   Conveyor according to claim 17, characterized   in that beams (70) oriented parallel to the longitudinal axis of the conveyor and removably connecting two respective supports, are arranged on each side of the rail of bearing (63).   Conveyor according to one of claims 12 and   17, characterized in that sleepers, which pass over the side walls (27, 28) connect, either the ranchers (40), or the U-shaped brackets (68, 71).