Anchor withdrawing device for tunnel anchor cable
Technical field:
The utility model belongs to the field of mining supporting equipment, and particularly relates to an anchor withdrawing device for roadway anchor cables.
The background technology is as follows:
a large number of anchor locks are used for supporting and reinforcing the solid structure of the mine in the inner wall of the tunnel in the coal mining process, so that the stability of the coal mine tunnel and the tunnel is improved. The large-area suspended roof is difficult to collapse after two gate faces are formed in the coal face pushing and mining process, the mode mainly adopted at present is forced roof caving or natural falling, forced roof caving efficiency is low, investment is large, an anchor cable needs to be taken out after natural falling, an anchor cable lockset can be taken out by using the existing equipment anchor withdrawing device, but purchase equipment and later maintenance cost are high, the anchor withdrawing device can only take out the anchor cable lockset in a normal state, the anchor cable lockset cannot be quickly taken down when the anchor cable lockset which is deformed and rusted faces, the progress of natural falling of the suspended roof in a roadway is blocked, and safety production accident risks are aggravated.
The utility model comprises the following steps:
The utility model aims to provide a roadway anchor cable anchor withdrawing device, overcomes the defects of the prior art, and effectively solves the existing problems of deformation or rust anchor locking anchor withdrawing in a coal mine roadway.
The utility model comprises the following steps: the utility model provides a tunnel anchor rope moves back anchor device, includes the jack the end department fixed mounting of jack has concave cutting seat piston rod end department fixed mounting of jack has the toper tool bit, the jack is connected through high-pressure rubber tube with pneumatic hydraulic pump, the toper tool bit is used for with placing the anchor rope tool to lock in the concave cutting seat recess is broken to be cut concave cutting seat's recess lateral wall is equipped with triangle-shaped arch.
Further, the end socket of the jack is inserted into the notch end of the concave cutting seat, screw holes are formed in the top wall and the bottom wall of the notch end of the concave cutting seat, bolts are screwed into the screw holes, and blind holes matched with the bolts are formed in the outer wall of the jack.
Furthermore, semicircular grooves matched with the jack are formed in the top wall and the bottom wall of the notch end of the concave cutting seat.
Further, a lifting lug is arranged on the outer wall of the jack.
The utility model has the beneficial effects that: the anchor cable lockset placed in the concave cutting seat is broken and cut through the jack, so that the deformed and rusted anchor cable can be quickly removed, the natural falling progress of the rear suspended roof in the roadway is accelerated, and the risk of safety production accidents is reduced.
Description of the drawings:
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a front view of a concave cutting seat according to the present utility model;
FIG. 3 is a left side view of the concave cutting seat of the present utility model;
FIG. 4 is a front view of the jack of the present utility model;
In the figure, 1 jack, 2 concave cutting seat, 3 toper tool bit, 4 pneumatic hydraulic pump, 5 high-pressure rubber tube, 6 anchor rope tool to lock, 7 bolts, 8 blind holes, 9 semicircular groove, 10 triangle-shaped protruding, 11 lug.
The specific embodiment is as follows:
for a clearer understanding of technical features, objects, and effects of the present utility model, a specific embodiment of the present utility model will be described with reference to the accompanying drawings:
As shown in fig. 1 to 4, a roadway anchor cable anchor withdrawing device comprises a jack 1, wherein a concave cutting seat 2 is fixedly installed at the end of the jack 1, a conical cutter head 3 is fixedly installed at the end of a piston rod of the jack 1, the jack 1 is connected with a pneumatic hydraulic pump 4 through a high-pressure rubber tube 5, the conical cutter head 3 is used for breaking an anchor cable lock 6 placed in a groove of the concave cutting seat 2, the end of the jack 1 is inserted into a notch end of the concave cutting seat 2, screw holes are formed in the top wall and the bottom wall of the notch end of the concave cutting seat 2, bolts 7 are screwed into the screw holes, blind holes 8 matched with the bolts 7 are formed in the outer wall of the jack 1, semicircular grooves 9 matched with the jack 1 are formed in the top wall and the bottom wall of the notch end of the concave cutting seat 2, a triangular protrusion 10 is arranged on the side wall of the groove of the concave cutting seat 2, and lifting lugs 11 are arranged on the outer wall of the jack 1.
Specifically, the anchor cable lockset 6 placed in the concave cutting seat 2 is broken and cut through the jack 1, so that the anchor cable can be quickly dismantled, and the natural falling progress of the rear suspended ceiling in the roadway is accelerated.
In the actual use process, firstly, a hand hoist is hung on a lifting lug 11, a jack 1 is hung to the position of an anchor cable lock 6 on the inner wall of a roadway, a concave cutting seat 2 arranged at the end of the jack 1 is sleeved on the anchor cable lock 6, a pneumatic hydraulic pump 4 is started at the moment to enable a piston rod of the jack 1 to extend out, and a conical cutter head 3 positioned at the end of the piston rod breaks and cuts the anchor cable lock 6 in the concave cutting seat 2; the end of the jack 1 is inserted into the notch end of the concave cutting seat 2, so that two devices can be quickly assembled and separated, and the jack is convenient to use and store; when the end head of the jack 1 is inserted into the concave cutting seat 2, the bolt 7 is screwed into the blind hole 8, so that the jack 1 and the concave cutting seat 2 can be completely in butt joint and fixed; the semicircular groove 9 formed on the concave cutting seat 2 enables the jack 1 to be matched and installed with the jack better; the triangular protrusions 10 can assist the conical cutter head 3 in rapidly breaking the conical cutter head 3.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.