RU2541987C1 - Fire soil-thrower - fire-break maker - Google Patents

Abstract

FIELD: fire safety.

SUBSTANCE: fire soil-thrower - fire-break maker comprises a frame, left and right augers located on one axis of rotation, a ripper A-hoe, two milling throwers mounted offset relative to one another in the longitudinal direction, the rotation mechanism of milling throwers in a horizontal plane consisting of a vertical rotary rack and remote hydraulic cylinder, a hydraulic drive of the milling throwers and a mechanical drive of screws of the tractor PTO shaft, shields of ground guides towards the edge of the fire under variable angle in the direction of movement of the unit, the fuse of the A-hoe of the ground ripper when meeting with an obstacle, and two spherical discs for generation of micro-elevations in the zone of milling throwers operation.

EFFECT: prevention of ejection of the upper bedding in the area of fire edge, increase in operating speed and performance, ensuring more effective fire-fighting by moving the ground by milling throwers and shield-guides not perpendicular, but at an angle to the line of fire edge, and the concentration of ground in the immediate area of the moving fire.

3 cl, 3 dwg

Description

The invention relates to machines for laying fire mineralized strips and extinguishing ground forest fires with soil.

Known working body of the soil thrower (USSR AS No. 631603, E023F 3/24, B65G 31/04, publ. 11/05/1978, bull. No. 41), comprising a housing, side track rollers, milling thrower, guide casing transmission with safety device.

However, this working body does not sufficiently supply soil to the fire zone to extinguish it when working on dense and cohesive soil containing the roots of tree-shrubbery and turf of grass vegetation, and it cannot be used for laying mineralized fire strips.

The closest in technical essence and the achieved result is a fire primer strip stripper (RF patent No. 2496540 C1 A62C 27/00, publ. 10/27/2013, bull. No. 30), including a frame, two spherical disks for the formation of a shaft from loosened soil , milling thrower, its drive and linkage mechanism.

However, in this analogue, as in other designs, the soil is fed into the fire zone along with the top cover, consisting of needles, which reduces the efficiency in extinguishing a fire and often contributes to its advancement; the soil moves in the direction perpendicular to the edge of the fire, dispersed over the area already covered by the fire, and does not fit directly into the edge zone with a thickness sufficient to completely extinguish; laying of mineralized strips due to the action of the milling thrower is not ensured, in connection with a single installation.

The aim of the invention is to increase the efficiency of the strip thrower by removing the upper fire hazard, consisting of plant debris; laying the soil at an adjustable angle of deviation to the direction of movement of both the unit and the edge of the fire and concentrating it precisely in its zone.

This is achieved by the fact that a device in the form of a double-sided screw, installed in front of the disks and shifting the ground cover from the center to the left and right sides, is introduced into the design of the strip thrower, and forms the open mineralized strip, within which the loosening leg and discs create two shafts in the form of continuous micro-elevations from friable soil; two-throwing milling cutters, placed at a certain distance relative to each other in the longitudinal direction, ensuring that the soil is discarded both separately in different directions, and both in one direction (fire), rotated on a vertical axis and installed using an external hydraulic cylinder at an angle to the direction of movement of the unit so that the discarded soil is placed at an angle to the edge of the fire and its bulk is concentrated in the active zone of the fire. The auger is driven through a mechanical transmission from the tractor power take-off shaft, and milling throwers through hydraulic motors.

Figure 1 presents a General view of the soil-throwing strip-spreader (isometric view); figure 2 is a General view (side); figure 3 - flow chart.

The strip-type soil thrower consists of a frame 1, a linkage mechanism 2, a screw 3, a cultivator 4, spherical disks 5, front and rear milling cutters 6, a gear housing 8 with axes of milling throwers located in it connected to hydraulic motors 10, and a remote hydraulic cylinder 11 for turning the soil throwers in a horizontal plane around the vertical axis 19 together with guiding guards 12; the auger 3 is driven from the tractor PTO through a cardan 16, a chain 18 gear and a gear 17. The stand 13 of the loosening legs 4 is pivotally connected to the frame 1, and the leg itself has a knife 15, which allows the leg to meet back and up when meeting an obstacle, and under the action of the tensile spring 14 to return after overcoming the obstacles in the original working position.

The ground-strip stripper works as follows. When the hydraulic system and the tractor power take-off shaft are turned on, the milling cutters 6, 7 are driven through individual hydraulic motors 10 and the screw 3 through the cardan 16 and the chain 18 of the transmission and gear 17. The guiding guards 12 are installed using the guide plate 9 at angles corresponding to technological process and throwing range.

With the translational movement of the unit, the rotating auger shifts the soil cover in both directions, the cultivating paw and spherical discs are buried in the open mineralized layer, which loosen the soil and form two micro-elevations in the form of continuous rollers. Following milling throwers, they capture and discard the soil either on both sides in order to form a mineralized fire strip of increased width, or discard in one direction (left or right, depending on the position of the unit relative to the edge of the fire).

To more effectively and accelerate the extinguishing of a lower fire, a module including two milling cutters with a hydraulic drive, two guides and a horizontal rotation mechanism, acting through the remote hydraulic cylinder 11, install the module in such a way that the soil stream is directed at an angle to the edge of the fire and the bulk of the soil would remain in the edge zone, thereby ensuring complete damping. A stream of soil can be directed both in the direction of movement of the soil, and in the opposite direction, if there is a need for this or obstacles in the form of trees or high stumps occur on the path of movement.

Thus, the design of the proposed machine not only increases the translational speed of the unit and its productivity, but also increases efficiency by covering the edge of the fire with soil of significantly greater length compared to the known soil throwers, which throw the soil in the perpendicular direction, concentrating it directly in the fire zone, not scattering over the area already passed by the fire.

The throwing distance of the soil is regulated both by the angle of installation of the guards and the rotational speed of the rotor of the hydraulic motors. Hydromotors provide reverse control of milling throwers.

Claims (3)

1. Fire primer-strip stripper, containing a frame, a linkage mechanism, spherical disks, milling throwers and a transmission, characterized in that a screw is installed on the frame in front of the disks to move the ground fire hazardous cover to the sides and prevent it from being thrown into the fire flame and a ripper in the form a double-armed lancet paw, and behind the disks - a module consisting of two milling throwers and guards with the possibility of turning it in a horizontal plane on a vertical axis with the help of an external hydraulic cylinder with Oba provide release soil-ground jets at an angle to the direction of motion of the machine or edge fire both forward and backward and thereby concentrate the main part of the soil at the edge of the fire. 2. The strip-spreading soil sander according to claim 1, characterized in that the subsoiler strut is articulated and spring-loaded, and the lancet foot is equipped with a knife at an obtuse angle of entry of the soil, allowing to overcome obstacles in the form of roots and stumps and loosen the soil to a predetermined depth. 3. The ground thrower-layer according to claim 1, characterized in that the milling throwers are mounted offset from each other in the longitudinal direction, allowing the process to be used both to extinguish a fire and to lay fire-resistant mineralized strips with greater productivity and efficiency.

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