FR2513750A1 - DEPTH OF SHEET DEPTH FOR QUICK DEMINING APPARATUS - Google Patents

Abstract

THE INVENTION RELATES TO AN EXCAVATION DEPTH PROBE FOR RAPID DEMINING APPARATUS. IN THE SENSOR, SENSOR ELEMENTS 7 ARE MOUNTED ON THE TWO EXTERNAL ARMS 2B OF A FORK IN REMOVABLE BOXES 5B. THESE ELEMENTS 7 CAN ROTATE AROUND HORIZONTAL AXLES 6B OFFSETS OF 90 FROM THE EXCAVATION DIRECTION C. THE PIVOTING POSITION OF THESE ELEMENTS 7 RELATIVE TO SAID EXTERNAL ARMS 2B CAN BE SENSORED BY STROKE DETECTORS 11B AND THE D VALUES THE DISPLAY CAN BE TRANSMITTED TO THE CONTROL DEVICES IN THE VEHICLE. APPLICATION IN PARTICULAR TO MILITARY ENGINEERING MACHINES.

Description

The present invention relates to a probe of

  excavation depth equipping a demining machine

  and including an armored tracked vehicle with a

  demining device operating on the principle of bat-

  rotary louvers for evacuating exposed mines and mines buried in the ground, including demining rods which, when placed in the digging position at an angle of about 700 to the direction of travel, transverse to the front of the vehicle and can be trained from that

  last, are mounted in the fork of a support device.

  port connected to the vehicle, in which they may be con-

  joints adjusted in height and offset, said clearance rods and said support device may also be

  brought to a transport position above said vehicle

  a support hollow arm, bent at right angles, mounted at the front of the vehicle body, offset laterally with respect to the longitudinal axis of the latter, rotatable about a vertical and lockable axis, presenting to its free end an intermediate casement can rotate and be blocked, wherein the fork of said clearance rods is mounted

  rotating and lockable, the strand leading to the training of

  said clearance rods lying, from the end

  the input of a gear reduction gear driven by the mio-

  the vehicle, inside the hollow support arm of the

  said intermediate boot and fork made hollow,

  according to the patent application filed in parallel by the same De-

  and called: "Rapid demining apparatus for blin-

caterpillar dice ".

  When rapid demining equipment performs mucking or excavation work, it is mandatory that

  the depth of the search can be adjusted to

  their predetermined and is kept constant during clearing A purely manual control of elevation movements and offset movements based solely on

  the observations of the driver of the vehicle is too uncertain.

  and that is, where the leaf has been removed.

  large amount of dust or bare conditions of visibility

are bad.

  The object of the invention is, therefore, to

  be a probe of the depth of excavation equipping a

  rapid mine clearance of the above type and by which the depth of the excavation considered can be measured indepen-

  the conditions of visibility that prevail.

  According to the essential characteristics of the invention

  probes are pivotally mounted outside the

  two outer arms of the fork, in casings fixed with

  Removable, around horizontal axes and offset by 90

  port to the direction of displacement, these probes, whose free end is oriented in the direction of the excavation, bearing elastically on the ground situated outside the

  excavation area Each pivot position of these palms

  fears relative to said outer arms of the fork, thus to the contact line of the outer circumferences of the digging members, can be detected by stroke detectors,

  the display values being transmitted to the devices cor-

  observation and actuation responders in the vehicle.

  In advantageous embodiments of the probe of the invention, the pivoting movements of the feelers can be damped and these probes can be equipped with

sliding pads.

  The advantages of the probe according to the invention reside in the fact that, independently of the visibility conditions and even in the presence of a corrugated terrain, the operator of the excavation device can measure and correct in such a way that

the depth of excavation.

  The invention will now be described in greater detail.

  tail as a non-limiting example with regard to the

in which:

  FIG. 1 is a diagrammatic plan view

  sensing a rapid mine clearance device with clearance rods in a search position; and Fig. 2 is a schematic side elevation

  in the direction of the arrow X in Figure 1.

  On the plan view of Figure 1, we see, in the

  1 of a tracked armored vehicle 1, a fork 2 in which demining rods 3 are placed in the excavation position. The reference 4 designates external circumferences of beaters (not shown) fixed by targets to the tie rods.

  3 These beaters move at high peripheral speeds

  only in a direction B (Figure 2) and they push to the obli-

  that forward the land cleared of a depth of excavation

the A (Figure 2).

  Bootcases 5a and 5b are attached to both outer arms.

  2 a and 2 b of the fork 2 and probes 7 are mounted

  in these casings, around axes 6a and 6b horizon-

  ta x and offset 900 from the direction of move-

  C In the exemplary embodiment illustrated, these feelers

  7 have sliding pads 8.

  In FIG. 2, the probe 7 is pressed, by a spring 9 fixed in the casing 5b, against the ground which is

  located outside the search area.

  A damping member 10 is mounted parallel-

  to the spring 9 to prevent a brimbalement of the probe 7

during the search.

  In FIG. 2, the reference 1 lb indicates a detection

  stroke driver by which the pivoting movement of the probe 7 around the axis 6b is captured and transmitted by elements

  not shown in the visual control and

  The digging depth A can be adjusted by pivoting the fork 2 around an axle

of elevation 12.

  When the two probes 7 resting on the ground outside the excavation zone indicate different values of the excavation depth A, a pivoting can occur.

  be printed on the fork 2, using a measuring device

  The 8 signals generated by the travel sensors 11b (a corresponding detector 11a not being shown) can be used simultaneously for

  visual displays and control quantities of a device

  tif automatic level control.

  It goes without saying that many modifications can

  may be brought to the feeler described and shown, without

shot from the scope of the invention.

13750

Claims (3)

  1 Feeler of the dig depth equipping   a rapid demining apparatus and comprising a vehicle   track-mounted dice equipped with a rotary-threshing device for the evacuation of mined mines and mines buried in the ground, including demining rods which, when placed in the digging position at   an angle of about 70 relative to the moving direction   transversely to the front of the vehicle and being drivable from the latter, are mounted in the fork of a support device connected to the vehicle, in which they can be jointly adjusted in height and offset, said clearance rods and said support device can also be brought to a transport position above said vehicle, a support arm, bent at right angles, mounted at the front of the vehicle body, offset laterally with respect to the vehicle. longitudinal axis of the latter, rotatable about a vertical axis and lockable, having at its free end an intermediate casing rotatable   and being locked, wherein the fork of said tie rods   Mining is rotatable and lockable, the strand leading to   the training of the said clearance rods being, in part,   firing of the input end of a gear reduction gear driven by the vehicle engine, inside the hollow support arm of said intermediate box and the hollow fork made according to the patent application NOP 31 36 499 3, feeler characterized by the fact that, outside the two outer arms (2 a, 2 b) of the fork (2), in housings   (5 a, 5 b) removably attached, probes (7) are   pivoting on axes (6a, 6b) horizontal and offset from   900 with respect to the search direction (C), said palms   fears, bearing resiliently on the ground outside the excavation zone, being oriented by their free end in said excavation direction (C); and in that each position ae pivueient of these probes countries relative to said outer arms (2a, 2b) of said fork (2),   as well as with respect to the contact line of circumferences   these external (4) dig organs, can be detected   by means of stroke detectors (11b), the values   their display being transmitted to the corresponding devices.   observing and actuating elements in the vehicle.   2 probe according to claim 1, characterized   in that the pivoting movements of the pallet elements   fears (7) can be amortized.   3 probe according to one of claims 1 and 2,   characterized in that the sensing elements (7)   so-called sliding skids (8).