RU1810494C - Device for formation of hollows in blast-holes walls - Google Patents

Abstract

Usage: the device relates to means of destruction of rocks, providing for the formation of cavities and crevices in the walls of the borehole. SUMMARY OF THE INVENTION: the device includes a rod, a sleeve located at its end spring-loaded relative to the rod, cutting elements also spring-loaded relative to the rod, a disk with inclined stops is placed on the rod which are mounted to interact with the cutting elements / which are rotated on the x-axis, pressed by inclined stops, are cut through the walls of the cavity hole. 3 ill.

Description

The invention relates to mining, in particular to rock-forming agents, and is intended to be used mainly in devices for destroying strong rocks, in particular mining combines. When creating such combines, it is advisable to use advanced means of breaking rocks by tearing and breaking using forces created as both liquid and solid. These forces are applied in the slots formed in the walls of the borehole.

The purpose of the invention is to increase work efficiency by increasing the diameter of the cavity.

On Fig, 1 shows a General view of the device; on. 2 is a section AA in FIG. 1; in FIG. 3 is a section BB in FIG. 1.

The device has the following design. To the rod 1 having a longitudinal channel 2 and transverse channels 3 are attached

centralizer 4, transverse axis 5 with reliable holders 6 on them.

The holders 6 have a part in the form of a hub, which they are worn on the axis 5 and mounted on it with the possibility of rotation around it, and an elongated prismatic or cylindrical part in which the cutting element 7 is fixed.

Parts 5-7 form the cutting blocks. In FIG. 1 shows two cutting units, however, their number may be existential. If there are more than one cutting unit, they are connected by rods 8 and hinges 9. In the axes 5 and the hubs of the holders 6, channels 10 are formed which are connected to the transverse channels 3 of the axles 5 and serve to supply coolant to the cutting elements. Channels 3, 10 are shown in FIG. 1, 2 dashed lines. The portions of the channels 10 located in the axes 5 and the hubs of the holders 6 can be offset from each other in the initial position, as shown in FIG. 1. This prevents the flow of coolant.

with

00

g 2

fluid when the cutting elements 7 are rotated, a pump (not shown) is turned on, but cutting has not yet begun.

The cutting elements 7 of one of the cutting blocks, as shown in FIG. 1, are attracted to the stem 1 by springs 11. The cutting elements of all cutting units can be attracted to the stem 1. The cutting elements 7 abut against the fittings 12 mounted on the disk 13 attached to the rod 1. On the rod 1 are provided collars 14, spring 15, sleeve 16. is pressed by nut 17. Sleeve 16 has a recess 18. Spring 15 abuts against one shoulder 14. to another, into a sleeve of antifriction material or a thrust bearing 19 defining a spring 15 rotating during operation from a non-rotating sleeve 16,

A similar bearing or bushing 20 is from 18104944, through the disk 13 and bearing I20 c into a stationary bushing 16. Cut into the borehole walls and make two movements - rotation with rod 1 and rotation around axes 5, cutting elements cut through circular recesses, shown in FIG. 1 dash-dotted lines. When cutting, coolant enters through channels 10 and 21.

At the end of the cutting, the working feed is turned off, the rotation is turned on, the reverse feed is turned on, parts of the device are brought to the position shown in Fig. 1, and it can be removed from the hole.

The device allows you to cut holes on the walls of the borehole, the shape and dimensions of which are suitable for introducing elements into them that create the forces of separation of the rock with both rigid metal stops and

10

makes the disk 20 rotatable during operation by other means, for example, fluid 13 from the non-rotatable sleeve 16. Open with a jerk.

Claims (1)

21 serve to supply a cooling liquid bushing or bearings 19, 20. Cartridge device for the formation of cavities in possible construction of parts 20, not the walls of the hole, including the rod, rametrebrema supply coolant 25 and channels 21. A device for forming gaps in the walls of the borehole operates as follows. Device feeder manipulator thirty (not shown) or manually inserted into the drilled hole, using the centralizer 4. After yn; The sleeve 16 at the bottom of the borehole continues to feed the rod 1. The rod 1. compresses the spring 15, passes into the recess 18, the cutting elements 7. interact with the stops 12 and overcome the resistance of the spring 11, turn on the axis 5. Turn on the rotation of the rod 1 (the rotator does not shown) with it rotates the disk 13 fixed on it with the stops 12. The stops 12 do not have translational motion, so a sleeve that is spring-loaded with respect to the rod and mounted on the rod by means of axes and cutting elements that are spring-loaded with respect to the rod, characterized in that, in order to increase work efficiency by increasing the diameter of the cavity, the device is equipped with a disk with inclined stops fixed to the latter, while the disk is placed on the rod with the possibility of 35 interactions of the tilted stops with the cutting elements, and a collar is made on the rod for fixing against displacement on one side of the collar of the disk, and on the other, a spring hydrochloric sleeve which extends end of the rod and fixed to the latter by means of nuts. 40 fifteen 104944, with the help of the fuel oil through the disk 13 and bearing I20 c into the stationary sleeve 16. Crashed into the walls of the hole and made two movements - rotation with the rod 1 and rotation around the axes 5, the cutting elements cut through the circular recesses shown in FIG. 1 dash-dotted lines. When cutting, coolant enters through channels 10 and 21. At the end of the cutting, the working feed is turned off, the rotation is turned on, the reverse feed is turned on, the parts of the device are brought to the position shown in Fig. 1, and it can be removed from the hole. The device allows you to cut holes on the walls of the borehole, the shape and dimensions of which are suitable for introducing elements into them that create the forces of separation of the rock with both rigid metal stops and 10 20 other means, for example, fluid a sleeve that is spring-loaded with respect to the rod and mounted on the rod by means of axes and cutting elements that are spring-loaded with respect to the rod, characterized in that, in order to increase work efficiency by increasing the diameter of the cavity, the device is equipped with a disk with inclined stops fixed to the latter, while the disk is placed on the rod with the possibility of interaction of the inclined stops with the cutting elements, and a shoulder is made on the rod for fixing against displacement on one side of the disk shoulder, on the other - spring loaded a hub, which protrudes from the end of the stem and is secured to the latter by a nut.