SU35765A1 - Yass multifaceted section for rotary drilling - Google Patents

Description

BASIC Auth. swith No. 35764 described by the IASS multifaceted section for rotary drilling, into the stem of which, with the aim of increasing the hydraulic pressure in the drill pipes for automatically switching off the engine, an apertured tube is inserted, fitted at the end with a stopper, locked, with an opening in the sleeve for the passage of the washing solution to the bottom .

In the present auth. swith It is proposed to modify the CCA, the stem of which is provided with a tube, which has a hole for the passage of the washing liquid, which closes when the stem is in the lower position, thus stopping the circulation of the liquid in order to increase the hydraulic pressure that directs the liquid to the device for automatic engine shutdown. The device is based on the fact that the spool of its junction box, connected with the winch gear lever of the drawworks, switches off the engine when the pressure of the washing liquid increases; when the rotor is turned off, the slide valve gives free flow of liquid through a special tube in the junction box, automatically switching on the engine again.

FIG. 1 of a schematic drawing shows a longitudinal section of a lot of ss (14)

face section for rotary drilling; FIG. 2 is a side view of the device for automatically shutting down the engine with increasing pressure; and FIG. 3 is an enlarged longitudinal section of the spool box.

The proposed CC, which is provided with a drill string for rotary drilling, has a rod / with a tube 2 attached thereto, equipped with; an elongated hole 3 for the passage of wash liquid. When the rod (is in its lower position), the opening 3 overlaps the walls of the central opening of the bottom of the sleeve, provided with side openings for the flushing liquid (Fig. 1). At the same time, the circulation of the liquid stops, its pressure in the drill pipe rises and opens the most safety valve (not shown in the drawing), which guides the fluid through the tube / (fig. 2) into the spool box 2 of the device for automatically switching off the engine when the fluid pressure is increased. The stem 3 of the spool JO, moving in junction box 2, is connected with a lever for turning on the rotary gear of the rotary drill winch. When the rotary gear is turned on, i.e., when the drill is in operation, the spool 10 overrides the inlet 4 and therefore forces the washing liquid to move along the pipe 5 (the position shown by the dotted line in Fig. 2). Next, the pressurized fluid passes into the cylinder b, acting on the piston 7, the rod of which is connected to the lever 8 to turn on and off the jigator of the drill installation and turn off the latter, suspend the drilling.

To enable further drilling, the driller is manually off: he senses the rotor gear, and hence the rotor, thereby translating the spool 10 (the closure of the signal is shown by solid lines in Fig. 2); wherein the liquid rushes through the tube 9 to the outside; the load //, which serves to set the piston 7 to its initial position and is connected with the rod of the latter, carries the piston 7, and with it the lever 6, which activates the engine again, and therefore it becomes possible to drill the drill tool.

The subject matter of the invention.

1. Modification of the author according to the author's certificate T2 35765, different

so that attached to the stem T {FIG. 1) the tube 2 with its end passes into the central opening of the bottom of the sleeve, provided with side openings for the outlet of the washing liquid, and is provided with an oblong opening 3 closed at the lower position of the rod in order to stop the circulation of the fluid and increase its pressure in the drill pipes.

2. At sse, described in E p. 1, use of a device for automatically shutting down the engine with an increase in pressure, consisting of a cylinder 6 with a piston 7 (Fig. 3), the rod of which is connected to the lever 8 to turn the engine on and with a load // for after returning the engine back to its original position, the pipe 5 is used to direct the water jet to the cylinder 6, the piston 7 is moved to move the piston 7, and the manual transfer valve 10 is used to re-start the engine stock 3 to The slide valve is connected to the lever for switching on the rotary gear of the winch. rotary drilling. dependent author's testimony A. Yu. Kogan N 35765

FIG 11