FR2478156A1 - AUTOMOTIVE ENGINE FOR SPREADING AGGLOMERES, AND OTHER ROAD COVERINGS - Google Patents

Abstract

THE INVENTION CONCERNS A SELF-PROPELLED MACHINE FOR THE SPREADING OF AGGLOMERS. THE UNIT MAINLY INCLUDES, FROM FRONT TO BACK: A CROSS-TURNING AND STEERING ROLLER 1; TWO SIDE DRIVE WHEELS 2 PLACED CLOSE TO THE MIDDLE OF CHASSIS 3 OF THE MACHINE; IN THE IMMEDIATE PROXIMITY OF THE DRIVE WHEELS 2, A DEVICE FOR DISTRIBUTION OF AGGLOMERS 4, WHICH TAKES THE AGGLOMERS IN A RESERVE TO SPILL THEM ON THE GROUND FOLLOWING A CONTROLLED FLOW; A CROSS-SECTIONAL SMOOTHING RULE 5; A LADY 6; AND A TRANSVERSAL HEATING BOOM 7. APPLICATION: REALIZATION OF A READY-TO-USE ROAD COATING IN A SINGLE PASS OF THE MACHINE.

Description

2478,156

  The present invention relates to a self-propelled machine for 1 '

  spreading of agglomerates, and other road surfaces.

  The object of the invention is to provide a self-propelled machine capable of

  in a single pass, to make a pavement ready for use.

  The object of the invention is to provide a self-propelled machine capable of

  not only the actual spreading of the coating materials but also the smoothing and finishing

coating.

  A self-propelled machine according to the invention, for the spreading of agglomerates and other road surfaces, is characterized in that it mainly comprises, from front to rear: - a transverse roll of rolling and steering;

  - two lateral drive wheels placed near the middle

  place of the craft; - in the immediate vicinity of the driving wheels, a device for

  agglomerate distribution, which takes the agglomerates

  ve to dump them on the ground at a controlled rate; - A transverse smoothing rule continuously animated with an alternating sliding movement parallel to itself; - a transverse lady animated by an alternating movement of vertical translation; a heating ramp extending transversely to 1 '

rear of the craft.

  According to a further feature of the invention, the various moving parts of the machine are provided with electric drive motors powered by electricity from a generator set at the front of the drive wheels, the center of

  gravity of the craft being located at the front of these driving wheels.

  According to a further feature of the invention, the driving station of the machine is located at its front end, and is provided with a steering wheel connected via a steering column to a gear pinion meshing with a toothed wheel of a yoke with vertical axis of rotation in which the roller

  transversal rolling is mounted to rotate freely.

  According to a further feature of the invention, the agglomerates dispensing device comprises: a hopper which constitutes the agglomerate reserve, and which is centered on a transverse vertical plane in which the axis of the lateral drive wheels passes;

  - a thrust screw which is driven by a rotational movement

  around its vertical geometric axis, which extends into the central zone of the hopper; a hedgehog constituted by a series of semi-rigid strands

  linked to a drive shaft permanently animated by a movement

  rotation around its horizontal and trans-

  versal with respect to the machine, this hedgehog extending over the entire width of the machine and being housed in a hedgehog housing of which

  the upper supply opening is connected by a corridor to the

  lower output of the hopper; - a horizontal and transverse distribution spout which

  extends over the entire width of the machine, and which is mounted on the ori-

  this lower output of the hedgehog housing.

  According to a further characteristic of the invention, the hedgehog comprises: in its central part, a toothed wheel which meshes with an endless drive screw;

  - On both sides of this toothed wheel, semi-rigid

  rigid so arranged that each lateral half of hedgehog is inscribed in a frustoconical volume which tapers towards the

corresponding edge of the craft.

  According to a further characteristic of the invention,

  a flow control flap is placed inside the corridor

  linking the lower outlet of the hopper to the upper port

  the hedgehog case.

  According to a further characteristic of the invention,

  the same electric motor drives on the one hand a transmission shaft

  integral with a first worm for driving the thrust screw and a second worm for the entrainment of the hedgehog, and secondly a reduction gear for driving the

drive wheels.

  According to a further characteristic of the invention, the transverse rule of smoothing is set in motion by means of a drive shaft integral with an eccentric prisoner of a

  slot-vertical dug in this rule.

  According to a further characteristic of the invention, the transverse rule of smoothing is telescopic, and comprises two

  half-rules joined one behind the other, the lower edges of which

  in the same substantially horizontal plane, and fixed to each other by means of bolts engaged in

  longitudinal slits of these half-rules.

  According to a further feature of the invention, the lady is actuated by means of a transverse horizontal shaft which

  carries at each end a cam placed over a vertical piston

  pinched between the active surface of the cam and the upper end

  top of a vertical slide secured to the lady, each ooulis-

  bucket being surrounded by a coil spring constantly compressed against

  be a shoulder provided at the upper end of the slider cor-

  respondent and a fixed surface of the chtsis of the machine.

  According to a further feature of the invention, the heating ramp is constituted by an infrared ramp

  powered by either gas or electricity.

  The attached drawing, given as a non-limiting example,

  will better understand the characteristics of the invention.

  - Figure 1 is an external perspective view of a machine

according to the invention.

  FIG. 2 is a partial top view of this machine,

  with a partial section II-II (fig 3).

  - Figure 3 is a section III-III (fig 2).

  - Figure 4 is a partial view along IV (Figure 3).

  - Figure 5 is a section V-V (fig 3).

  - Figure 6 is a partial view along VI (Figure 3).

  - Figure 7 is a section YII-YII (Figure 3).

  There is shown in the drawings a self-propelled machine according to the invention, which mainly comprises the following members, from front to back (FIGS. 1 and 3): a transverse roll 1 of rolling and steering; - Two side drive wheels 2 placed near the middle of the frame 3 of the machine; - In the immediate vicinity of the drive wheels 2, a sintering device 4, which takes the agglomerates in a reserve to pour on the ground at a controlled rate; a smoothing transverse rule 5, and a lady 6; a transverse heating ramp 7 The various mobile parts of this machine are provided with electric drive motors. These motors are supplied with electricity from a generator 8 mounted on the part of the chassis 3 located at the front of the drive wheels 2. Such a generator being relatively heavy, it is found that the center of gravity of the machine is located at the front of the driving wheels-2, which is essential so that the roller 1 permanently carries on the ground, even outside the periods of use of the lady 6. In case of need, one can equip the front part of the frame 3 of a counterweight 9. The driving position 10 of the machine is placed at the end

  before it, and is equipped with an electronic control cabinet

  11 and a steering wheel 12. The latter is connected

  through a vertical steering column 13 to a pillar

  notch 14 engaged with a toothed wheel 15 secured to a chain

  eg 16 (fig 4). The transverse roll 1 is mounted to turn

  in the clevis 16, while a pivot 17 oriented orthogonal-

  the axis of the transverse roller 1 and the vertical axis of rotation

  tical 18 of the yoke 16 gives the roll 1 an additional degree of freedom. As can be seen in Figure 5, the drive wheels 2

  have at their periphery a rubber bandage 19, and are

  both of which are integral with one and the same drive shaft 20.

  At its upper part, the agar dispensing device

  glomerates 4 comprises a hopper 21 which constitutes the reserve of agglomerates

  mérés, and whose vertical geometric axis 22 is located in the same transverse vertical plane as the axis of the driving wheels 2, while being rather strongly off-center with respect to the vertical median plane

  of the craft, as can be seen in Figures 2 and 5.

  A thrusting screw 23 coaxial with the hopper 21 extends in the central part thereof by rotating on itself permanently in the direction which allows the forced downward entrapment of the chip particles contained in the hopper. 21, in direction

  a lower outlet orifice 24.

  A corridor 25 sloping downward and rearward, and enclosing a flow control flap 26, connects the orifice 24 to the

  upper feed port 27 of a hedge housing 28.

  The casing 28 contains a hedgehog 29 comprising semi-rigid strands 30 integral with a horizontal drive shaft 31.

  which extends transversely to the machine, all over the

  geur of the machine. In its central part, the shaft 31 is integral with a driving gear wheel 32. On either side of the wheel

  toothed 32, the semi-rigid strands 30 are arranged so that each

  side half of a hedgehog is inscribed in a tronconic volume

  that which tapers towards the corresponding edge of the machine. A

  Horizontal and transverse distribution spout with adjustable

  33, which runs the full width of the machine, is mounted on

  the lower outlet opening of the hedge housing 28.

  It is a single variable-speed electric motor 34 which is used to drive on the one hand the drive wheels 2,

  and on the other hand the two rotating members of the dispensing device

  Sintering 4. The driving of the driving wheels is achieved

  by means of a toothed belt 35 ensuring the transmission of

  between a pulley 36 wedged on the output shaft 37 of the motor

  34 and a receiving pulley 38 which drives the shaft 20 through

  a wheel and worm gear reducer 39. A worm

  40, seated directly on the output shaft 37 of the motor 34 in the ar-

  pulley 36, meshes with a toothed wheel 41 integral with the thrust screw 23, to drive the latter. Finally, a worm screw 42 fitted on the rear end of the output shaft 37 of the motor 34, meshes with the toothed wheel 32 of the shaft 31 to make

turn the hedgehog 29.

  With regard to the different operating speeds

  adopted, the following orders of magnitude can be given to

  non-limiting: - speed of advance of the machine: 2 to 5 meters per minute, - speed of rotation of the thrust screw 23: 25 revolutions per minute, speed of rotation of the hedgehog 29: maximum 40 laps

- per minute.

  The output shaft 37 of the motor 34 rotates at about 3000

  revolutions per minute, the generator 8 delivering an alternating current

  Native to a nominal value of 220 volts, the rule 5, which is telescopic, comprises two half-rules a and 5b (fig 6) which are placed one behind the other, and whose

  the lower edges lie in the same, substantially horizontal plane

  zontal. These two half-rules are fixed to each other by means of

  bolts 43 engaged in longitudinal slots 44 half-rules.

  A geared motor 45 whose output shaft 46 is secured to an eccentric 47 prisoner of a vertical slot 48 dug in the

  Rule 5 animates the latter with a reciprocating movement of

  parallel to itself. You can adjust the set so that the rule makes, for example, about 200 round trips to

the minute.

  The lady 6 is secured to two vertical slides and cy-

  49 (fig 7) mounted to slide each in a lateral support 50 of the frame 3. Each slide 49 is surrounded by a

  helical spring 51 constantly compressed between the lower cover

  52 of the corresponding support 50 and a shoulder 53 provided at the upper end of this slide. On each side there is a vertical piston 54 clamped between the upper end of the corresponding slider 49 and a cam 55. The two cams 55 are carried by the opposite ends of a horizontal and transverse shaft 56.

  The lady's movement is ensured by means of an electric motor.

  57, via a wheel and worm gearbox

  58 and a transmission belt 59 which is wound between a

  60 wedged on the output shaft of the reducer 58 and a pulley re-

  The spinner 61 is keyed on the shaft 56. The assembly can be adjusted so that the lady strikes, for example, about 25 strokes per minute on the floor. Finally, the heating ramp 7 is an infrared ramp

  which works either with electricity or gas.

The operation is as follows:

  It suffices to pour into the hopper 21 an agglomerate of

  garment type appropriate to the pitiful state, and to advance the machine on a relatively smooth floor and packed 62 to perform in one pass:

  - the uniform and regular discharge of a layer of agglomer-

  méré 63 on the floor, using the dispensing device 4; - smoothing the layer 63, using the rule 5; - The settlement and the planarization of this layer 63, using the lady 6, used to vibrate or hit the ground; - the polymerization, and consequently the hardening of the

  layer 63 using the heating ramp 7.

  Without the case where the starting soil would not be absolutely

  plan, this disadvantage could be overcome by moving the

  gin on two parallel straight rails 64 (fig 1).

  This machine, which can be used advantageously to carry out the

  agglomerate on small width tracks, for example on sidewalks, has the advantage of being usable on the whole.

  its width, since the active parts of the distribution device

  4, Rule 5, Lady 6 and Heating Ramp 7

  extend practically across the overall width of the craft. This-

  the peculiarity allows the execution of spreading by shaving the edge of the walls, the edge of the sidewalks, or generally the edge

any fixed lateral structure.

  According to a last variant, we can place in front of

  roll 1 an additional heating ramp 65 (FIG. 3).

  So when the ground on which the craft is working is already

  equipped with a bitumen coating in more or less good condition, this ram-

  65 extra pe allows soften this coating before the pas-

  wise of the roll 1, on the one hand to level this coating, and on the other

  on the other hand to allow a good adhesion of the agglomerates.

Claims (10)

  1. Self-propelled machinery for spreading agglomerates and others   road surfaces, characterized in that it comprises mainly   fore and aft: - a transverse roller of rolling and steering;   - two lateral drive wheels placed near the middle   place of the craft; - in the immediate vicinity of the driving wheels, a device for   agglomerate distribution, which extracts the agglomerates in a   serve to dump them on the ground at a controlled rate; - A transverse smoothing rule continuously animated by an alternating sliding movement parallel to itself; - a transverse lady animated by an alternating movement of vertical translation; a heating ramp extending transversely to 1 ' rear of the craft.   2. Machine according to claim 1, characterized in that its various movable members are provided with electric motors of   electrically powered training from an electronics group   gene mounted at the front of the drive wheels, the center of gravity of 1 '   gear being located at the front of these driving wheels.   3. Machine according to any one of the preceding claims   characterized in that its driver's seat is located at its front end, and is provided with a steering wheel connected by means of a steering column to a gear pinion engaged   with a toothed wheel secured to a clevis with vertical axis of rotation   cal in which the transverse roll of cylinders is mounted to rotate freely, a pivot orthogonal to the axis of rotation of the yoke and the axis of the roller for pivoting of the yoke   to give the cross roller an additional degree of freedom silent.   4. Machine according to any one of the preceding claims   characterized in that the device for distributing agglomerates   mérés comprises: - a hopper which constitutes the reserve of agglomerates, and which is centered on a transverse plane in which passes the axis of the lateral drive wheels;   - a thrust screw which is driven by a rotational movement   around its vertical geometric axis, which extends into the central zone of the hopper; a hedgehog constituted by a series of semi-rigid strands   linked to a drive shaft permanently animated by a movement   rotation around its horizontal and trans-   versal relative to the machine, this hedgehog extending over the entire width of the machine and being housed in a hedgehog housing whose upper feed port is connected by a corridor provided with an inner flap of flow control at the lower hopper outlet opening; - a horizontal and transverse distribution spout which   extends over the entire width of the machine, and which is mounted on the ori-   this lower output of the hedgehog housing.   5. Machine according to claim 4, characterized in that the hedgehog comprises: - in its central part, a toothed wheel which meshes with a worm drive;   - On both sides of this toothed wheel, semi-rigid   rigid so arranged that each lateral half of hedgehog is inscribed in a frustoconical volume which tapers towards the corresponding edge of the craft.   6. Machine according to claim 5, characterized in that   the same electric motor drives on the one hand a transmission shaft   integral with a first worm for driving the thrust screw and a second worm for driving the hedgehog, and secondly a reducer for the entrainment of drive wheels.   7. Machine according to any one of the preceding claims   characterized in that the transverse smoothing rule is set in motion by means of a drive shaft integral with a   eccentric prisoner of a vertical slot dug in this rule rule.   8. Machine according to any one of the preceding claims   dentes, characterized in that the transverse smoothing rule is telescopic, and comprises two half-periods contiguous one behind   the other whose lower edges are in the same plane sibly horizontal.   9. Machine according to any one of the preceding claims   characterized in that the lady is actuated by means of an armature   transverse horizontal beam which carries at each end a flat cam   above a vertical piston pinched between the active surface of the cam and the upper end of a vertical slide secured to the lady, each slide being surrounded by a coil spring   constantly compressed between a shoulder at the upper end   top of the corresponding slider and a fixed surface of the chassis of the machine.   Apparatus according to any one of the preceding claims   characterized in that the heating ramp is constituted by an infra-red ramp fed by gas or electricity, while an additional heating ramp is provided at the front   transverse roll of rolling and steering.