SU1165794A1 - Lock for rod support - Google Patents

Description

The invention relates to the field of mining, in particular to devices for securing mining, as well as for attaching a scraper block and other mechanisms to the array. five

The purpose of the invention is to increase the carrying capacity and. Reducing the complexity.

FIG. 1 shows an anchor inserted into a well; in fig. 2 - the same, after fixing; in fig. 3 - section aa to ¹⁰

FIG. one; in fig. 4 - installation process of the spacer, dimetry.

The proposed anchor consists of a tapered head 1 and a support washer 2, rigidly connected to the rod 3, the smaller base 4 15 of the tapered head 1 is made eccentric relative to the larger base of the lock. The lock is equipped with a spacer element, which is made in the form of a cylinder 5 with a groove 6 and grippers 7. The surface of the groove 6 20

repeats the lateral surface of the tapered head 1 along the entire length, and the claws 7 are installed with the possibility of covering the smaller base 4 of the tapered head 1. In addition, the bar has a support plate 8 and a head 9. 25

The installation of the anchor is made as follows.

The anchor is inserted up to ‘of the support plate 8 in the roof. Then, by turning the head 8 of the rod 3, set the expansion element 5, which is wedged between the borehole wall and the tapered head as it moves. When the pulling out. force bar samoaklinivaetsya. Extraction of an anchor - is made in the return_ order.

The implementation of the spacer element in the form of a cylinder with a groove that repeats the lateral surface of the tapered head along the entire length allows increasing the load-carrying capacity of the lock by increasing the area of contact between the spacer element and the walls of the well and the surface of the tapered head.

Execution on the spacer element grippers installed with the possibility of covering the smaller base of the tapered head, eliminates the loss of the spacer element from the lock during operation.

The rigid connection of the tapered head and the bearing washer allows you to transmit the rotational moment of the tapered head and the bearing washer, and also eliminates the threaded connection.

The eccentric execution of the smaller base relative to the axis passing through the centers of the larger base and the bearing washer allows you to create the initial fastening of the lock without moving the conical head and the bearing washer relative to each other.

The proposed lock in comparison with the known is easy to manufacture, more reliable and allows you to remove the bar for reuse.

Figg

1165794

Aa

Fig 3

FIG 4

Claims (1)

LOCK FOR ROD CLAMP, containing rod, conical head having two bases, support washer and expansion element interacting with conical head and support washer, characterized in that, in order to increase the bearing capacity and reduce labor intensity of manufacture, the smaller base of the conical head is eccentric relative to the axis passing through the centers of the larger base and the bearing washer, and the expansion element is designed as a cylinder with grooves and grippers, while the surface of the groove repeats the lateral surface con waist head over its entire height and grippers performed yen, with coverage of the smaller base of the cone head, and the cone head is rigidly connected to the support washer. Lee> / SC "1165794 1165794 one