Chain gate for mill hole

IPC classes for russian patent Chain gate for mill hole (RU 2513735):

E21F13/00 - Transport specially adapted to underground conditions (mine cars B61D; transport in general, loading B65G)

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/ 2284958

/ 2284959

/ 2287693

/ 2296861

/ 2298102

/ 2298103

/ 2323842

/ 2336418

/ 2338069

/ 2346157

FIELD: mining.

SUBSTANCE: gate comprises two rings arranged under an outlet hole for release of bulk rock mass, and the rings are arranged one after the other and are aligned in horizontal planes, at the same time the rings are connected to each other by vertically oriented round-linked chains fixed on rings by their free ends and arranged along the entire perimeter of rings. Besides, one of the rings is installed without the possibility of rotation in the horizontal plane, and the second ring is kinematically connected with the drive as capable of rotation in the horizontal plane, on the upper ring along the entire external perimeter there are running rollers with the possibility of their movement along a circular rail, fixed on the circular ledge of the device for release of bulk rock mass. At the same time the ring is equipped with a toothed crown with the possibility of its interaction with a gear, kinematically connected with a rotation drive, and the lower ring is equipped with ledges arranged along its external diameter with the possibility of their interaction with vertically aligned guides of the jacket of cylindrical shape with the possibility for it to cover chains with a clearance. Besides, vertically placed chains in the initial position in their middle part between the upper and lower rings are wound with two additional horizontally oriented chains, which are with one end fixed on the jacket, and by the other end - on one of vertical chains, at the same time additional chains round the vertical chains in opposite directions, and the angle of their coverage of vertical chains is accepted in the range of 180÷220 degrees.

EFFECT: higher efficiency and reliability of gate closure for a mill hole as rock mass is released from it with increased size of pieces.

4 dwg

Famous adopted for the prototype chain stopper containing placed below the outlet of the device for production of large-sized cargo two rings located one below the other and oriented in horizontal planes, and the rings are connected with the vertically oriented kruglozerny chains attached to the ring their free ends and arranged around the perimeter of the ring, and one of the rings installed without the possibility of rotation in the horizontal plane, and the second ring is kinematically connected to the drive for rotation in a horizontal plane on the top ring around the outer perimeter posted by running rollers can be moved along the circular rail mounted on the annular protrusion of the device for production of large-sized cargo, while the ring is fitted with a toothed crown with the possibility of its interaction with the gear kinematically associated with the rotational drive, and the lower ring is equipped posted on its outer perimeter of the tabs with the possibility of their interaction with vertically oriented guide casing has a cylindrical shape with the possibility of covering them with a gap circuits (RF Patent No. 2338069, publ. 10/11/2008,, bull. No. 31).

However, in the known construction of the shutter does not fully use efficiency the efficient and reliable shutoff outlet ore passes after leaving it lumpy rock mass..

The technical result of the invention is to improve the efficiency and reliability of overlapping shutter for ore passes with the release of his rock mass with increased grain size pieces.

The technical result is achieved by the fact that in the chain stopper for ore passes that contains placed below the outlet for the release of lumpy rock mass two rings located one below the other and oriented in horizontal planes, and the rings are connected with the vertically oriented kruglozerny chains attached to the ring their free ends and arranged around the perimeter of the ring, and one of the rings installed without the possibility of rotation in the horizontal plane, and the second ring is kinematically connected to the drive for rotation in a horizontal plane on the top ring around the outer perimeter posted by running rollers with the possibility of moving on the circular rail mounted on the annular ledge of the device for production of large-sized cargo, while the ring is fitted with a toothed crown with the possibility of its interaction with the gear kinematically associated with the rotational drive, and the lower ring is equipped posted on its outer perimeter of the tabs with the possibility of their interaction with vertically oriented is upravlyayuschimi casing of cylindrical form with the possibility of covering them with a gap circuits, vertically placed the chain in the initial position in their middle part between the upper and lower rings Abagnale two additional horizontally oriented chains that have one end fixed to the casing and at the other end on one of the vertical chains, additional bypass circuit vertical chain in opposite directions, and the angle of the girth of their vertical chains adopted within 180÷220 degrees.

The chain stopper is shown in figure 1, a side view in longitudinal section, figure 2 - section a-a of figure 1, figure 3 - cross-section B-B of figure 1, figure 4 - section b-In figure 1.

Chain stopper contains placed below the outlet 1 for the production of lumpy rock mass of the ore passes two rings 2 and 3, placed one below the other and oriented in horizontal planes, with rings 2 and 3 are connected vertically oriented kruglozerny circuits 4, attached to the rings 2 and 3 of their free ends and arranged around the perimeter of these rings. Top ring 2 around the outer perimeter posted by running rollers 5 can be moved along the circular rail 6, is fixed on the annular projection 7 of the device with the outlet 1 for unloading lumpy rock. The top ring 2 is provided with a ring gear 8 with usaimage the effects with the gear 9, kinematically (10) associated with the rotational drive, equipped with a normally closed brake (not shown). The lower ring 3 is equipped posted on its outer perimeter of the projection 11 with the possibility of their interaction with vertically oriented guide rails 12 of the casing 13 has a cylindrical shape with the possibility of covering them with a gap circuits 4. The casing 13 is attached to the chassis 14, and the bearing unit 15 of the gear 9 on the casing 13.

Vertically placed circuit 4 in the initial position in their middle part between the upper 2 and lower 3 rings Abagnale two additional horizontally oriented circuits 16 and 17 (figures 1, 3 and 4)which one end is fixed to the casing 13, and the other end on one of the vertical chains 4. Additional circuits 16 and 17 bypass vertical circuit 4 in opposite directions, and the angle α of the girth of their vertical circuits 4 adopted within 180÷220 degrees. The angle α of the circumference is calculated experimental investigations depending on the physico-mechanical properties of produced from the ore passes of the rock mass.

Chain stopper for ore passes operates as follows. When the shutter is open lumpy mountain mass is freely discharged through the outlet 1, not interacting with chains 4. If necessary, shut off the flow of the rock mass is activated actuator rotation system-easy installation the I upper ring 2, making torque from gear 9 is transmitted to the ring gear 8 of the upper ring 2. The rotation of the upper ring 2 in the horizontal plane is rolling undercarriage rollers 5 on the ring rail 6. When rotating the top ring 2 is suspended to him kruglozerny circuit 4 starts to spin relatively fixed against rotation in the horizontal plane of the lower ring 3. When tightening kruglozernyh circuits 4 bottom ring will begin to rise up, sliding his projections 11 along the guide rails 12 of the casing 13. While the guides 12 hold the bottom ring 3 against rotation. When the rotation of the upper ring 2 and the twisting kruglozernyh circuits 4 stream is discharged from the device 1 of the rock mass gradually narrows to a full overlap, then the actuator is switched off and is retarded by the brake. When tightening the chains 4 and they in its middle part is additionally pressed to each other and shifting between rock mass due to wrap them outside more horizontally oriented circuits 16 and 17, which provides increased efficiency tightening the chains 4 and overlap them flow discharged from the ore passes of the rock mass. The opening of the shutter for the release of the rock mass is carried out at the start of a drive in the opposite direction, causing the top ring 2 surface is razivaetsya in the opposite direction, and the lower ring 3 is lowered to its original position relative to the rails 12 of the casing 13.

Features of the invention allow to increase the efficiency and reliability of the overlap outlet ore passes after leaving it lumpy rock mass through the discharge outlet of the increased size

Chain stopper for ore passes that contains placed below the outlet for the release of lumpy rock mass two rings located one below the other and oriented in horizontal planes, and the rings are connected with the vertically oriented kruglozerny chains attached to the ring their free ends and arranged around the perimeter of the ring, and one of the rings installed without the possibility of rotation in the horizontal plane, and the second ring is kinematically connected to the drive for rotation in a horizontal plane on the top ring around the outer perimeter posted by running rollers can be moved along the circular rail mounted on the annular ledge device for production of lumpy rock mass, and the ring is fitted with a toothed crown with the possibility of its interaction with the gear kinematically associated with the rotational drive, and the lower ring is equipped posted on its outside the perimeter ledges with the possibility of their interaction with vertically oriented guide casing has a cylindrical shape with the possibility of covering them with a gap circuits, characterized in that the vertically placed the chain in the initial position in their middle part between the upper and lower rings Abagnale two additional horizontally oriented chains that have one end fixed to the casing and at the other end on one of the vertical chains, additional bypass circuit vertical chain in opposite directions, and the angle of the girth of their vertical chains adopted within 180÷220 degrees.