SU750057A1 - Telescopic feed device - Google Patents

Description

(54) FEEDBACKER TELESCOPIC

one

This invention relates to the field of mining, in particular to boring machine feeders.

A telescopic feeder is known, which includes the skid of the boring machine, the upper and lower beams mounted on the manipulator arm, the mechanism for adjusting mutual mixing, the upper and lower beams, and the drive 1.

Its disadvantage is the complexity of the design.

The closest solution to the technical essence and the achieved result is a telescopic feeder, including a drive, a flexible element attached to a drilling machine, a mechanism for adjusting the mutual displacements of the upper beam and the lower beam fixed on the boom arm of the manipulator 2.

Its disadvantage is the complexity of the design.

The aim of the invention is to simplify the design.

To achieve this goal, the mechanism for adjusting the mutual displacements of the upper and lower beams is made of limiters installed on the lower beam.

between which there is a stop fixed on the flexible element, at that one of the stops is made with the possibility of fixed movement.

The invention is illustrated in the drawings, where in FIG. 1 shows a telescopic feeder in a transport position; in fig. 2 - feeder before starting drilling; in fig. 3 - the same cross section. The proposed feeder is arranged as follows. On the holder 1 of the boom 2, the upper beam 3 is installed, on which the upper beam 4 is mounted with the possibility of longitudinal movement with the slide 5, the front support 6 (Fig. 2), the slide 7 with the drill mask 8, the movable steady 9, the bore guide 10, the spindle screw 11 with an actuator 12 (FIG. 2), the front and rear blocks 13, covered by a flexible element (for example, a steel rope) 14, are attached to a sled 7, and an emphasis 15 fixed to the flexible element.

20 On the lower beam there are installed guide sleeves 16, in which retractable guides 17 are placed with a crosspiece — a bore-guide 18 and stop peaks 19 and limiters of the adjustment mechanism

mutual displacements of the upper and lower beams: front 20 and rear 21.

The feeder is equipped with a drill rod 22 with a crown 23. A clamp-lock 24 is provided for fastening the guides on the extended position.

The feeder operation is as follows. In the transport position, the beam 4, held by the holder 1 on the boom 2, is located above the beam 3, the slide 7 and the perforator 8 in the rearmost position, guiding 17 with the buronapravian beam 18 and shifted to the extreme left position and secured with a clamp-lock 24, shtanga 22 with a crown 23 off the feeder.

Before starting work, the clamp-latch 24 is loosened, the guides 17 with the cross-bore guide 18 and the lugs 19 extend, moving in the guide sleeves 16 by the required length forward (in Fig. 2 to the right), and secured with the clamp by the clamp 24.

A drill rod 22 with a crown 23 is installed in the drilling machine 8, a steady 9, a bore guide 10 and a bore guide bar 18, the movable stop 21 is installed and secured in the position required for obtaining a given feed stroke. This completes the preparation of the feeder for drilling.

Then, using the boom 2, the feeder feeds the bottom to the stop peak 19 in the bottomhole, turns on the drilling machine 8 and drives the screw 12 of the driving screw 11. As the driving screw 11 is connected with the nut on the slide 7, the latter together with the drilling machine 8, the shaft 22 and a crown 23 begins to move forward, the flexible element 14 is carried along with the support 15 fixed on it. After the stop 15 reaches the limiter 21 fixed on the lower beam 3, it starts simultaneously with the interleaving of the slide 7 forward and the movement of the upper beam 4 also forward. In this case, the beam 4 is held on the beam 3 by means of the slide 5 and slides its front support 6 along the guides 17 up to the stop of the beam 4 with its front end into the traverse-borer 18, and the slide 7 with the perforator 8 - to the boreal 10. At the same time the slide 7 with a drilling machine 8, a rod 22 and a crown 23 make a stroke equal to twice the feed length of the lead screw 11.

After the drilling is finished, the boring machine 8 is turned off, the drive 12 is reversed and with the reverse rotation of the running gear.

the screw 11 simultaneously moves the slide 8 and the beam 4 to the rear position and removes the rod 22 with the bit 23 from the hole. In doing so, the anvil 15 rests on the limiter of the anterior 20, moving the upper beam back. In this process

The drilling of the hole ends and the feeder by the boom 2 is transferred to the drilling of the next hole. If necessary, and changing the depth of drilling, the limiter 21 on the beam 3 is rearranged to the required distance back and fixed. In this case, when turning on the lead screw 11 to the forward stroke, the amount of movement of the upper beam 4 is reduced by the idle run of the stop 15 before contact with the stopper 21. The advantage of the proposed feeder

is: simplicity of design; the ability to adjust the feeder to different depth of drilling; improving the efficiency of drilling operations by increasing the depth of drilling.

Claims (2)

1. USSR author's certificate No. 599063, cl. E 21 S 5/00, 1976. 2. USSR author's certificate number 625031, cl. E 21 S 5/00, 1976. /five 10 IS I FIG.