SU909199A1

SU909199A1 - Anchor for securing mine workings

Info

Publication number: SU909199A1
Application number: SU802968032A
Authority: SU
Inventors: Евгений Александрович Шуверов; Александр Аркадьевич Шуверов
Original assignee: Оперативный Военизированный Горноспасательный Отряд (Овгсо) Вгсч Кузбасса
Priority date: 1980-07-25
Filing date: 1980-07-25
Publication date: 1982-02-28

Description

(54) АНКЕР ДЛЯ КРЕПЛЕНИЯ ГОРНЫХ ВЫРАБОТОК(54) ANCHOR FOR BUILDING MINING

1one

Изобретение относитс к горному делу, а именно к извлекаемым анкерам с распорными самозаклинивающими замками дл креплени горных выработок.The invention relates to mining, in particular, to retrievable anchors with self-jamming expansion locks for securing mine workings.

Известен анкер дл креплени горных выработок, включающий стержень, конус- 5 ный элемент, гильзу с продольными прорез ми и поперечными выступами 1.A known anchor for fastening mines, comprising a rod, a cone-5th element, a sleeve with longitudinal slots and transverse projections 1.

Недостатком такого анкера вл етс возможность проворачивани гильзы и конусного элемента при закреплении замка.The disadvantage of such an anchor is the possibility of turning the sleeve and the tapered element when securing the lock.

Наиболее близким к предлагаемому по технической сущности и достигаемому результату вл етс анкер дл креплени горных выработок, включающий стержень, конусный элемент с пружиной и гильзу с продольными прорез ми 2.15The closest to the proposed technical essence and the achieved result is an anchor for fastening mine workings, including a rod, a tapered element with a spring and a sleeve with longitudinal slots 2.15

Однако при извлечении, анкера необходимо осуществл ть сжатие пружины, предотвращающей вход конусного элемента в гильзу, что св зано с дополнительными затратами времени на эту операцию.However, when removing the anchor, it is necessary to compress the spring to prevent the taper element from entering the sleeve, which is associated with additional time spent on this operation.

Целью изобретени вл етс ускорение процесса извлечени анкера дл его повторного использовани .The aim of the invention is to accelerate the process of retrieving an anchor for reuse.

Поставленна цель достигаетс тем, что конусный элемент выполнен с наружнымThe goal is achieved by the fact that the conical element is made with the outer

продольным пазом, а пружина - в виде пластины с выступом, при этом пластина размещена в пазе конуса и прорези гильзы , причем на внутренней поверхности гильзы , взаимодействующей с выстугюм пружины , выполнена кольцева проточка.a longitudinal groove, and the spring - in the form of a plate with a protrusion, while the plate is placed in the groove of the cone and slot of the sleeve, and on the inner surface of the sleeve, interacting with vystugyum spring, the ring groove.

На фиг. 1 изображен анкер в момент извлечени его из скважины (в этом случае свободный конец пружины опираетс в основание кольцевой проточки гильзы); на фиг. 2 - вид на пружину и положение деталей анкера, подготовленного дл установки в скважину (в этом случае свободный конец пружины поджат к продольной канавке и находитс ниже основани кольцевой проточки гильзы).FIG. 1 shows the anchor at the moment of its extraction from the well (in this case, the free end of the spring rests on the base of the annular groove of the liner); in fig. 2 is a view of the spring and the position of the parts of the anchor prepared for installation in the well (in this case, the free end of the spring is pressed to the longitudinal groove and is below the base of the ring groove of the sleeve).

Claims

The anchor consists of a rod 1, passed through the sleeve 2 to the restrictive rim 3, screwed onto the rod of the conical element 4, the annular protrusion 5, limiting the unscrewing of the rod from the conical element, the longitudinal groove 6 on the conical element, laid in the groove of the plate spring 7, fixed to the larger the base of the cone at the free end of the spring of the protrusion 8, eccentric bore 9, freely turning eccentric bushing 10, restrictive ring 11, square 12, gland nut 13, bearing plates 14 and rings second bore 15. The anchor is set as follows. The spring 7 by pressing a finger on the protrusion 8 deepens the B longitudinal groove 6, the rod 1 is screwed onto the tapered element 4 until the free end of the spring is lowered into the sleeve below the base of the annular groove 15 (Fig. 2). The anchor is inserted into the well to a predetermined depth and, beyond the square part 12, the rod 1 is rotated clockwise. In this case, the sleeve 2 with the eccentric groove 9 will rotate relative to the eccentric sleeve 10, wedge and will be prevented from further twisting. Upon further rotation of the rod 1, it will be screwed into the cone element 4, which is kept from turning relative to the sleeve due to the protrusion 8. The cone element enters inside the sleeve and burst it. In this case, the transverse projections of the liner 2 are inserted into the wall of the well and secure the anchor. The anchor is additionally secured by tensioning the rod 1 when turning the gland nut 13, which transmits the axial force through the support plate 14 to the fixed rocks. When removing the anchor from the well, the rod 1 is turned in the opposite direction until it stops. In this case, the annular protrusion 5 abuts against the surface of the cone element 4 and prevents further unscrewing of the rod from the cone element. Next, hit the end of the rod. In this case, the conical element 4 is pushed out of the sleeve by the action of the rod until the free end of the leaf spring 7 exits above the base of the annular groove 15, and the limiting rim 3 rests against the base of the sleeve. The sleeve is compressed, and the spring rests against the base of the annular groove (Fig. 1). After that, the anchor for the rod 1 is removed from the well, since the axial force of the rod is transmitted through the spring 7 to the end of the annular groove of the liner. In the presence of a groove, the spring has a slight retraction, so it is able to transfer a significant axial force. Claims Anchorage for fastening mines, comprising a rod, a cone element with a spring and a sleeve with longitudinal slots, characterized in that, in order to accelerate the process of extracting the anchor for reuse, the cone element is made with an outer longitudinal groove a plate with a protrusion, wherein the plate is placed in the groove of the housing and slot of the sleeve, and on the inner surface of the sleeve interacting with the protrusion of the spring, an annular groove is made. Sources of information taken into account in the examination 1. Semevsky V. N. and others. Shtangov lining. M., “Nedra, 1965, p. 24

2. USSR author's certificate No. 526709, cl. E 21 D 21/00, 1974 (prototype).