FR2514818A1 - FELLER-LOADER FOR THE EXTRACTION OF USEFUL MINERALS - Google Patents

Abstract

THE INVENTION CONCERNS THE MINING INDUSTRY. THE FELLER-LOADER ACCORDING TO THE INVENTION IS CHARACTERIZED IN THAT THE CONTROL OF THE ATTACK PARTS 6, 7 IS CARRIED OUT SUCH AS EACH OF ITS MOTORS 15, 17 DRIVES ITS OWN ATTACK ORGANS 6, 7 IN ROTATION WITH ARCHIMEDE SCREW, TO WHICH IT IS KINEMATICALLY LINKED, AND IN THAT THE SAID CONTROL STILL INCLUDES A MOTOR 16, WHICH IS MOUNTED IN THE BODY 1 AND WHICH, DURING THE EXTRACTION OF THE USEFUL MINERAL, IS CONNECTED, BY A MECHANISM OF CHANGE OF THE KINEMATIC CONNECTION BETWEEN MOTORS 15 TO 17, TO THAT OF THE SAID MOTORS WHICH DRIVES THE FIRST IN ROTATION (IN THE DIRECTION OF THE FELLER-LOADER) ATTACK UNIT 6 OR 7 WITH ARCHIMEDE SCREW. THE INVENTION APPLIES IN PARTICULAR TO THE EXTRACTION OF COAL AND SALT.

Description

I

  The present invention relates to equipment for the exploitation of

  useful minerals, and in particular a slaughterhouse for the extraction of useful minerals, it can be applied to the exploitation of useful minerals, mainly in thin layers, preferably

for coal, salt.

  It is known that the throughput of the loader-loaders is a direct function of the power of their motor system, the increase of which is not always technically feasible, especially for thin-film harvesters, because of the small size of the machinery. the space of

  work and the limitation of the size of the harvester-

  loader, that is, its height and length.

  It is known a thresher-loader for the extraction of useful minerals in thin layers, having a sufficiently high power (cf, for example, patent RF A. N 01 005 821, 1959) This feller-loader comprises two attacking bodies under forming cutting drums mounted on swinging arms located at opposite ends of the body of the loader-harvester Each driving member is actuated by a motor attached to the arm, via

  a reducer located inside the arm.

  The motors are not kinematically linked to each other,

  therefore the power of each of them must be sufficiently

  In addition, the front drive, in the direction of travel of the feller-loader, is always more loaded than the rear drive, which results in an irrational consumption of energy. In addition, the use of powerful motors causes a large increase in the size of the loader because the engines are placed on the arm of the attacking member, It follows that such harvesters loaders can not be used in thin films, especially

power less than 1.3 m.

  A feller-loader is also known for extracting

  useful minerals, with two

  Archimedean screws, each mounted on the shaft of one of the arms.

  These arms are mounted at opposite ends of the body of the loader, performing a back and forth motion during extraction.

  in rotation by a motor system which is linked to them

  tically and has two motors kinematically linked between

  In this way, each of the attacking organs is

  born in rotation simultaneously by two motors mounted on

the body of the feller-loader.

  The disintegrating attacking elements of the layer are arranged at different heights, thanks to the fact that the arms can be adjusted in height, and the highest placed attacking member is the one that first attacks the layer (cf. example, USSR author's certificate N 0567 352;

  British Patent No. I 521,006, El F).

  Given that in the feller-loader considered the motors are kinematically related to each other, their size and, therefore, the size of the entire loader-loader could be reduced to such an extent that it became possible to use the loader

  in layers with a power of 0.65 m.

  However, the known feller-loader thus conceived has a low power, which does not satisfy the

  current requirements for loader and loader.

  It has therefore been proposed to create a feller-loader for the extraction of used minerals, in which, thanks to a modification of the design of its engine system,

  it would be possible to increase the power of the harvester

  loader, especially if it is intended to be used in thin layers, that is to say in the layers of a

  power equal to or greater than 0.65 m.

  This problem is solved by a feller-loader for the extraction of useful minerals, whose body, moving back and forth during extraction, carries at its two opposite ends height-adjustable arms, which each have a shaft on which is mounted an Archimedean screw driver driven in rotation by a control kinematically connected to the two Archimedean screw drivers and having two

  engines mounted in the body of the loader, the

  said Archimedes screw drivers being arranged at different heights for the attack of the useful mineral layer, characterized, according to the invention, in that the control of the attacking members is carried out such that way that each of its motors drives in rotation its own drive member with screw Archimedes, which it is kinematically related, said control further comprising a motor, which is mounted in said body, and which, when

  extraction of the useful mineral, is connected through the

  of a mechanism for changing the kinetic link

  between the motors, to that of the motors which drives in rotation the first one (in the direction of movement of the feller-loader during the extraction)

  attacking organ with screw Archimedes.

  This allows, by increasing the power of the harvester-

  loader, to use rationally the energy supplied, that is to say, to increase the power of the control of that of the attacking organs which attacks

  the first layer and undergoes the main load of slaughter

  while leaving unchanged the power of the control of the other driver, which, meanwhile,

is the least loaded.

  It is advantageous to have all the drive motors of the Archimedes screw drivers in the aforementioned body so that their output shafts, on which is produced the engine torque for the rotation of the driving members, are parallelsand in a plane

  common to the body of the loader.

  The mechanism for changing the kinematic link between the motors may comprise two parasitic toothed wheels having the possibility of moving in their plane of rotation, these wheels being each fixed on a crank and arranged so that they couple the

engines two by two.

  Each crank may be linked by means of a gearbox to a shaft made in such a way that its free end extends beyond the body of the feller-loader, these loose ends being advantageously coupled to a connecting rod by respective hinges. It is also advantageous that the mechanism for changing the kinematic linkage of the motors to one another comprises an element for limiting the displacement of each parasitic toothed wheel in a determined position, said limiting elements being mounted in the body of the feller-loader. Such an embodiment of the organ control

  attack has made possible the creation of a

  loader operating safely in layers of 0.65 m or more in power and having available power meeting the requirements

  current situation regarding gear of this kind.

  The invention will be better understood and other purposes, details and advantages thereof will become more apparent in the

  light of the explanatory description which will follow from

  various embodiments given solely by way of nonlimiting examples, with references to the appended nonlimiting drawings in which: FIG. 1 represents the schematic diagram of a slaughterhouse loader for the extraction of useful minerals according to the invention; Figure 2 shows the same sectional loader section II-II of Figure 1; FIG. 3 will represent each kinematic of a slaughterhouse loader according to the invention;

  FIG. 4 shows the control of the actuators

  loading of the loader according to the invention (in longitudinal section); Figure 5 is a sectional view along V-V of Figure 2, showing the kinematic connection of the motors for the right driver according to the invention;

  Figure 6 is a sectional view along VI-VI of

  FIG. 4, showing the kinematic connection of the motors

  for the left driver, according to the invention.

  The feller-loader for the extraction of useful minerals comprises a body 1 (Figure 1) constructed so that it can perform a back and forth movement in the direction indicated by the arrows A The body 1 door to its opposite ends of the oscillating arms 2, 3 adjustable in height On the other 4.5 of each arm 2, 3 is mounted a member 6,7 of attack Archimedes screw, for slaughtering the useful mineral The body 1 also carries a frame-gantry 8 and hydraulic supports 9, with which the feller-loader is supported on the conveyor size 10 (Figure 2) However, the feller-loader

  can also be realized in gantry frame.

  The feller-loader moves with respect to

  voyeur 10 using the advance mechanism 11, whose con-

  For example, the feed mechanism 11 used in this case comprises a flexible traction member, in the form of a chain 12, connected to the frame 8 and to two remote controls 13 out of the limits of the size d The chain 12 is placed in a channel 14, on the side of the conveyor of size 10. The driving members 6,7 are rotated by a control kinematically connected to the two members 6, 7 of FIG. Archimedean attack and comprising three motors, 16 and 17 (Figure 1) which are mounted in the body 1 of the feller-loader and a mechanism 18 of change

  the kinematic connection of the motors 15 to 17 between them.

  The motors 15 to 17 are arranged in the body 1 so that their output shafts 19, 20, 21 (FIGS. 1, 3), on which the driving torque is produced for the rotation of the drivers 6.7, are parallel and located in

  a common plane in relation to the body 1.

  The motor 15 is connected to the shaft 22 of the driver 6 by a gearbox 23, and the motor 17 is connected

  to the shaft 24 of the attacking member 7 by a gearbox 25.

  On the output shaft 20 of the engine 16 is wedged a wheel

toothed 26.

  The mechanism 18 (FIGS. 3 and 4) comprises two parasitic toothed wheels 27, 28 respectively fixed on cranks 29, 30, by which they have the possibility of moving in their plane of rotation. The cranks 29, 30 are mounted in bores 31 (Figure 4) of

body 1.

  The cranks 29, 30 respectively bear toothed wheels 32, 33, which are geared with toothed wheels 34, 35. The wheels 34, 35 are respectively fixed on rotating shafts 36, 37 made so that their free ends 38, 39 protrude from the body 1 of the slaughterer-loader, which clearly appears in FIG. 4 On these free ends 38, 39 are wedged arms 40, linked together by means of articulations 41 by

  a connecting rod 42 which is equipped with a handle 43.

  Thanks to the rotating shafts 36, 37 and the cranks

  30, the parasitic gears 27 and 28 can be de-

  placed in circular arcs in their plane of rotation for meshing or disengaging with the toothed wheels 44 and 45 of the gearbox 23, and, via the gear wheel 46, with the gearbox. avoid the simultaneous kinematic connection of the three motors 15 to 17 between them, the kinematic connection of the motor 16 can be established with one of the motors or 17, with cut (disconnection) of the kinematic link between the motor 16 and the motor 17 or 15, which is illustrated not only in FIG.

  also in Figure 5 and Figure 6 For this purpose, the

  relative to the cranks 29, 30 is chosen such that during their simultaneous rotation there is first disengagement, for example, of the toothed wheel 27 from the wheel 44, and only then meshing with the

  gear wheel 28 with gear wheel 46 Simultaneous rotation

  The cranks 42, connected by links to the ends 38, 39 of the output of the rotary shafts 36, 37 are secured to the cranks 29, 30. In this way, the mechanism 18 is first separated from the first one. gearboxes 23 or 25 to which it was previously connected, and only after Isa securing with the other reducer

or 23.

  The mechanism 18 further comprises elements 47 and 48, 49 and 50 (FIGS. 5 and 6) for limiting the displacement of the parasitic toothed wheels 27, 28 in respective predetermined positions. Said elements are mounted

in the body 1.

  The gearboxes 23 and 25 are of identical construction and known per se, and each comprise gear wheels 51, 52, 53, 54, 55, 56, 57, 58, 59 and sleeves

claws 60.

  The feller-loader operates as follows.

  When the feller-loader moves in size from left to right (Figure 1), the driver 7 right, that is to say the body 7 asant (in the direction of travel of the The feller-loader operates with a higher energy consumption (power) than the left or the rear driver 6. It is therefore necessary to provide greater power to the right driver. this, using the handle 43 fixed to one of the arms 40, the shafts 38, 39 of the mechanism 18 are rotated. This causes the parasitic sprocket 27 to disengage from the toothed wheel 44 motor 15, then the meshing of the toothed wheel 28 with the toothed wheel 46 of the right-hand motor 17 During their movement along a circular arc, the parasitic toothed wheels 27 and 28 remain geared permanently with the toothed wheel 26 of the motor 16 The indicated position is shown in the figure Thus a direct kinematic connection of the

  motor 16 with the right motor 17, the sum of the

  These motors 17 and 16 are transmitted by the gear unit 25 to the drive member 7 on the right. The left-hand motor 15 drives the driver 6 on the left by

through the gearbox 23.

  When the movement of the feller-loader in the waist is inverted, for the right-to-left step, the left-hand driver 6, which is now

  the front member (in the direction of movement of the harvester-

  loader), must spend more power than

the driver 7 on the right.

  Again, using the same lever 43, the shafts 38, 39 are rotated, but in opposite directions. The spurious gear 28 then disengages from the toothed wheel 46 of the right motor 17 and then the spurious gear.

  27 meshes with the toothed wheel 44 of the left motor 15.

  This position is shown in Figure 6 It follows the establishment of a direct kinematic connection between the motor 16 and the left motor 15, and the sum of the powers of the motors 15 and 16 is transmitted by the gearbox 23 to the left driver 6 The right motor 17 then drives the driver 7 on the right

  through the gearbox 25.

  It goes without saying that the motors 15, 16 and 17 can

  be electric, hydraulic or pneumatic.

  The invention solves a series of problems: increasing the flow of the loader while maintaining a reduced footprint in height and length; optimal distribution of power between the two drivers; in particular, the trassm Lion of most of the power to the front driver (in the direction of travel of the feller-loader); the creation of a high-powered control harvester for the extraction of minerals useful in

thin layers.

R E V E N D I C ATI ONS

  1 Feller-loader for mineral extraction

  useful, of the type comprising a body (1) executing a movement

  during extraction, and at opposite ends of which height-adjustable arms (2,3) are mounted and on the shaft (4, 5) of each of which a member (6, 7) of Archimedean screw attack, rotated by a control kinematically connected to the two bodies (6, 7) of Archimedes screw attack and comprising two

  motors (15, 17) mounted in the body (1) of the harvester

  loader, the Archimedean screw drivers (6, 7) being arranged at different heights to attack the useful mineral layer, characterized in that the control of the driving members (6, 7) is effected from in such a way that each of its motors (15, 17) rotates its own Archimedean drive member (6, 7), to which it is kinematically connected, and in that said drive further comprises a motor (16). ), which is mounted in the body (1) and which, during the extraction of the useful mineral, is connected, by a mechanism (18) for changing the kinematic connection between the motors (15 to 17), to that of said motors which drives in rotation the first (in the direction of travel of the feller-loader) organ (6 or 7)

attacking Archimedes.

  2 fighter-loader according to claim 1, characterized

  characterized in that all drive motors (15 to 17) of the buoyancy members (6,7) are arranged in the body (1) so that their output shafts (19 to 21) , on which is produced the motor torque for the rotation of the Archimedes screw actuating members (6, 7), are parallel and in a common plane with respect to

  body (1) of the feller-loader.

  3 feller-loader according to claims 1 and 2,

  characterized in that the mechanism (18) for changing the kinematic connection between the motors (15 to 17) comprises two parasitic toothed wheels (27, 28) having the possibility of moving in their plane of rotation, these wheels (27, 28) being each fixed to a crank (29, 30) and arranged

  to connect the motors (15 to 17) two by two.

  4 feller-loader according to one of the claims

  1, 2 and 3, characterized in that each crank (29,30) is connected via a reducer (32 to 35) to a shaft (36,37) made in such a way that its free end

  (38,39) protrudes from the body (1) of the harvester.

  A feller-loader according to claim 4, characterized in that the free ends (38,39) of the two shafts (36, 37) protruding from the body (1) of the loader harvester are coupled together by a connecting rod (42).

  with respective hinges (41).

  6 feller-loader according to one of the claims

  preceding, characterized in that the mechanisms (18) for changing the kinematic connection between the motors (15 to 17) comprises elements (47 to 50) for limiting the displacement of each spurious gear (27, 28) in a position predetermined, said limiting elements (47 to 50) being mounted in the body (1)

of the feller-loader.