SU30217A1 - Drilling tool for percussion drilling - Google Patents

Description

The proposed drilling tool is built on the principle of a hydraulic ram held together with a impact bit; which works independently of the rotation bit.

In FIG. 1 depicts a vertical section of the proposed drilling tools; FIG. 2-10 - details.

The drilling tool is placed in pipes A, b. and C, interconnected by internal couplings 16, 25 and 33, and provided with a head 3, which is connected to a rod. In Pipe A, there is a piston 9-3 (Figs. 4 and 2), to which pipe 2 is connected from above, and 13 below, and which can move longitudinally to the head. 3 and the coupling K, which is fitted with a gasket in the annular grooves 4 to 17. The piston consists of two bolted parts 9 to 9 (Fig. 2) with nozzles 49 and 9a. (Fig. 3) connected by a quadrangular chamber 55 (FIG. 4), for the throttle valve .5 /, whose axis with the gear 60 mounted on it (Fig. 6) is enclosed in the sockets 65 and 66 (Figs 2 and 4), with the purpose of gear 60 (Fig. 6) a quadrilateral nest 54 (fig. 5) fits holes 43a

142

(, Fig. 4) and 43 (Fig. 2), serving as a guide for the rod 55 (Fig. 8). The internal piston chamber has side and top holes 50 and 44 at the top and bottom (Fig. 3). The liquid from the pipe 49 (Fig. 3) enters the hole 50, and from the hole 44 goes into the pipe 49a.

To rotate, the servo 55 serves, the ends 46 of the axis of which are equipped with buffer springs 72 and 45 and cams 7 and 77 abutting vyod-yn 6 heads 3 or BtiCTyn 14 couplings 16 A rod 13 is connected to the lower part of the piston (Fig. 1 ), screwed with the tube 24 and entering the tube 23a, which is screwed into the sleeve 30, connecting it to the tube 31. The latter has a 55, 39 drummer (Fig. 1 and 10) and two holes 57 (Fig. 1 ) located against the grooves 36 in bit 63 (Figs. 10 and 10). The pipe 23a is provided with a head 22 for engaging with the rod 13 by means of spring-loaded dogs 75-2J (Fig. 1).

The operation of the drilling tool is as follows. A cam 7 (fig. 1, 2), seated on the axis 46 of the toothed wheel 55 (fig. 8) and secured by a nut 47 (fig. 2), abut when the piston is raised at the stand

-b (Fig, 1), jumps off the protrusion 5 of the piston (Fig. 1, 2) and the spring 4 (Fig. 2), is compressed on the head 3 (f, ig. 1), moves down the axis - # 5 (Fig. 2.8) and due to the adhesion of the teeth 55 (Fig. 8) with the gear 60 (Fig. 6), turns the throttle valve 57 (Figs. 3 and 6). At this time, the cam / 7 (Fig. 1 and 2) under the action of the spring 67 nasco (it to the protrusion 10 (Fig. 2), which makes it possible to compress the spring 72 (Fig. 2) about the inner coupling / 6 (Fig. 1) ; when the cam P (Fig. 2) is pushed into the protrusion 14 of the coupling 16 (Fig. 1), the cam rotates and jumps off the protrusion of the piston (Fig. 2), while the spring 72 (Fig. 2) is compressed and pushes the axis 46 (Fig. 2 , 8) up and put the valve 57 in another position, as a result of which the piston will begin to rise. When the piston is lifted, the last one is through pipes 13 and 21 with paws 23 (Fig. 1), there is no sweat upwards pipe 23a connected to the coupling 30, which The s 31 raises the hammer bit 38 while simultaneously compressing the working spring 26 until the upper part of the pawl 19, 25 comes out into the cone clutch 18 and causes the lower part to move away from the head 22, as a result of which the 38 falls downwards under the influence of the compressed spring; There is a spring 52 (fig. 1) in this case. Thus, regardless of rock drilling with bits 7 (figs 1, 10), it is destroyed by impact bits 38 (fig. 1, 10).

(Subject invention.

Claims (2)

1. A drilling tool for impact drilling, due to the fact that the spring-loaded pipe 25a is provided with a head 22 for coupling by spring-loaded dogs 19-25 to the piston rod 75 of piston 9-9, which is received in translational motion by the action of wash water. 2.When the tool according to claim 5 of the device is a piston 9-9, characterized by the use of nozzles 49 and 49a, connected to an intrapiston chamber equipped with a valve 57 (Fig. 3 and 6), rotated by means of an OSIshesterka / bb (Fig. 6) impaled on its placed in slot 66 (FIGS. 2 and 4) and rotatable tooth 5.5 (FIG. 8), the ends of the axis of which are provided with buffer springs 72 and 45 and cams 7 and 77 abutting projections b and 7, in order to descend spring-loaded cams with protrusions 8 and 10 pistons.