RU184306U1 - Mine sweep shaft - Google Patents

Abstract

The utility model relates to engineering weapons, namely, to overcome the mine-explosive obstacles by mechanical continuous trawling. The mine sweep with a working shaft is used on demining machines and is capable of carrying out continuous mechanical trawling of mines and explosive objects in soils up to category IV, inclusive.

The working shaft of the mine trawl consists of a shaft, an internal shaft with undercuts with a threaded connection, quick-detachable glasses with a stretching spring installed in them, a retractable flexible cable and a striker. On the outer end of the quick-detachable glasses, a hex head cap is cut out; on the inner end, a threaded connection, the quick-detachable glasses are screwed into the grooves of the inner shaft. In quick-detachable glasses, the stretching spring is rigidly connected to the inner wall of the glass and to a retractable flexible cable connected through the attachment point with the striker held by the stretching spring in the transport position.

The technical result provided by the above set of features is the simplicity and manufacturability of the design of the working shaft of the mine trawl, ease and speed of installation and removal of the quick-detachable cup when replacing the destroyed striker or cable, reducing the overall performance of the working shaft in the transport position by pulling in retractable flexible cables with strikers.

Description

The utility model relates to engineering weapons, namely, to overcome the mine-explosive obstacles. The working shaft of the mine trawl is used on demining machines and is capable of carrying out continuous mechanical trawling of mines and explosive objects in soils up to category IV, inclusive.

An analogue of the proposed utility model is the mine trawl (see patent application RU 2003113286 A dated 05.05.2003), which consists of a carrier frame and a rotor with working bodies of an active striker type. The disadvantage of this analogue is a single non-removable working shaft with active working bodies of a striker type, and when they are destroyed, it is necessary to replace the entire working shaft, after having disassembled the device frame into separate elements, also when translating the working body into the transport position, suspended hammers create certain difficulties in their installation and mount.

Known version of the mine trawl (see patent RU 2081385 C1 from 01.04.1994), consisting of a working shaft, mating spring-loaded node with strikers, which are mounted on the longitudinal cables. In the working position, when the shaft rotates, the mating spring-loaded unit shifts to the center of the shaft, thereby increasing the diameter of rotation of the dies on the longitudinal cables.

The disadvantage of this prototype of the working shaft of the mine trawl is that if both the strikers installed on the longitudinal cables and the cables themselves are damaged, the operation of the mine trawl fails. To return the mine trawl to working capacity, it is necessary to replace the mine shaft trawl shaft as a whole. The complexity of the removal and installation of the mine shaft sweeper shaft can lead to significant time costs that are unacceptable when performing the combat task of demining terrain and objects with a mine trawl.

The objective of the proposed technical solution is:

- the ability to quickly replace the damaged striker on the work shaft without having to change the entire working shaft of the mine sweep as a whole;

- ensuring that the striker is pulled in with a cable in transport mode;

- ensuring the pulling of the striker with a cable in the operating mode at rotational speeds from 100 rpm and higher.

The solution of this problem is achieved by the fact that in the working shaft 1 (Fig. 1) of the mine trawl, quick-detachable glasses 2 are installed, which are screwed into the undercut 3 with a threaded connection, arranged in a certain order in the internal shaft 4 of the working shaft. In the quick-detachable glasses, the stretching spring 5 holds the retractable flexible cable 6, to which the firing pin 8 is fastened to the attachment 7.

The essence of the proposed technical solution is illustrated by the following images:

- in fig. 1 shows the working shaft of the mine sweep 1, transferred to the transport position, the working shaft does not rotate, the retractable flexible cable 6 is stored in quick-detachable glasses 2, the strikers 8 are pressed against the working shaft 1;

- in fig. 2 shows a part of the working shaft 1 of the mine trawl, translated into the working position, to which torque is applied for its rotation at a speed of more than 100 rpm;

- in fig. 3 shows a section of the working shaft 1 mine trawl side view, with a variant of the location of the quick-detachable glasses 2, the working shaft does not rotate, the pull-out flexible cable 6 is stored in quick-detachable glasses 2, the strikers 8 are pressed to the working shaft 1;

- in fig. 4 shows a section of the working shaft 1 of the mine trawl side view, translated into the working position, to which torque is applied for its rotation at a speed of more than 100 rpm;

When moving the mine sweep to the work site, the working shaft 1 is in the transport position, and the strikers 8 with retractable flexible cables 6 held by the tension springs 5 are stocked in quick-detachable cups 2. During demining work, the work shaft 1 of the mine trawl is rotated by inertial forces, strikers 8 with retractable flexible cables 6, overcoming the force of the tension springs 5, are pulled out to their full length from the working shaft 1, thereby ensuring the required calculated distance from the working shaft 1 to the ground surface, where explosives are destroyed.

In case of destruction of the strikers 8 with retractable flexible cables 6, which may occur during mine clearance by a mine sweep, it is necessary to replace the quick-detachable cups 2. On the outer end of the quick-detachable cups 2, a six-sided cap is cut to remove and install the cups with an open-end wrench, on the inner shaft 4 are the undercut 3 with a threaded connection, into which the quick-detachable glasses 2 are screwed.

The proposed device of the working shaft 1, as well as the order of fastening the quick-detachable glasses 2 with the stretching spring 5, the pull-out flexible cable 6 and the striker 8 installed in them, differs significantly from the prototype, since the design uses elements allowing installation and removal of the quick-detachable glasses 2 when the destruction of the striker 8 or flexible cable 6 in a limited short time, without the need to replace the working shaft 1 mine trawl entirely. Also a significant difference is the property of the working shaft 1 to retract the retractable flexible cables 6 with strikers 8 in the idle state when translating the trawl into the transport position.

The technical result provided by the above set of features is the simplicity and manufacturability of the design of the working shaft of a mine trawl, the ease and speed of installation and removal of the quick-detachable cup when replacing a destroyed striker or flexible cable, reducing the overall performance of the working shaft in the transport position by pulling in retractable flexible cables with strikers, as well as a significant reduction in time and labor required for servicing the mine sweep shaft, which is especially important when you olnenii combat mission demining areas and objects.

Claims (1)

The working shaft of the mine trawl, consisting of a working shaft, mated with a spring-loaded knot with strikers, which are mounted on longitudinal cables, characterized in that the working shaft has an internal shaft with undercuts with a threaded connection, into which the quick-release glasses stored in them are screwed , retractable flexible cable and briskly, on the external end of the quick-detachable glasses a six-sided cap is cut, on the internal end there is a threaded joint, in the quick-detachable glasses the stretching spring is rigidly connected the inner wall of cup and retractable flexible cable, connected through the attachment element with the striker, held stretching spring.

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