SU1467164A1 - Drilling tool - Google Patents

Abstract

This invention relates to a rock ridge and is intended for drilling soft soils. The goal is to increase the reliability of work and reduce labor costs for assembly and disassembly of the projectile when unloading raised soil. For this purpose, the guide rod 6 is rigidly fixed in the upper part of the body (K) 1, and the removable wall 5 has clamps and is rigidly attached to the adapter. The latter is in the form

Description

I1

i The invention relates to mining ijipoMbmineHHOCTHs, namely to devices for drilling soft soils 1 |: olonc way with: entering into the projectile cavity,

: The aim of the invention is to improve the reliability of work and reduce labor costs for assembly and disassembly of sleep (| yes, when the soil is raised.

; FIG. Shows a drill d 4 working position; 2, that e, in the unloading position; on fig.Z section aa in figure 1.

; .

; The drill comprises a housing 1 with a frill-shaped profile with a notch in the wall and a working tip 2 at the lower end of the housing 1 with an adapter 3 c) |) located at its upper part with a threaded assembly 4 attached to the 350DU - cable lock of the drill cable Winch (not shown), removable wall- 5, closing; cutout in the wall of the core-1, guide rod 6, rigidly fixed in the upper part of housing 1, Removable wall 5, is fastened to adapter 3, which is made in view of the sleeve placed condentally to the axis of the housing 1. The lower part of the sleeve is made in Idea of the cover 7 interacting with the upper end of the housing 1 The guide rod b is located inside the sleeve 3 and is fixed against rotation relative to it, and the removable wall 5 is configured to be reciprocated in both directions relative to the housing 1 fixed in the upper and lower positions x with the help of clamps, made in the form of fingers 8 and 9 with flats 10 (fig.Z). These fingers are installed in the sleeve 3 with the possibility of rotation and interaction with the lip 11, made on the guide rod 6.

Snar d works as follows.

Before running into the borehole wall 5, cut a slot in the wall of the housing 1 by placing sleeve 3 on the guide rod 6 in the lower position (fig,}), and fingers B and 9 are brought to the closed position by turning their faces to the opposite direction Axis snare yes. Thus, the sleeve 3 (and therefore the removable wall 5) is rigidly attached to the housing 1 with the guide rod 6. The cover 7 in this position is in contact with the upper end of the housing 1 I

If the projectile is used as a masking submersible (for which a screw coil is fixed on the body 1 and the removable wall 5), a soil receiving sleeve is inserted into the body cavity (the screw coil and the sleeve are not shown).

In the assembled position, the projectile is installed on the bottom of a well and drilling is carried out in a known manner, percussion or rotational, while

the soil column goes into the cavity of housing 1 or into the grouser installed in the housing. Then, the projectile is removed to the surface and unloaded, for which finger 8 is rotated by 180 ° (Fig. 2), after which the removable wall 5 is lifted to the upper position by the length of the flat 11 on the winch rope or level bar. 6, Case 1 under its own weight remains in place and its opening is opened for unloading.

For complete disassembly of the projectile, for example, when body 1 needs to be laid for easy unloading in a horizontal position with a fixed removable wall on the drill rod, the I9 finger is also rotated. 1 In this case, the body is completely removed from the sleeve,

The projectile assembly operation is performed in the reverse order.

During shock drilling, the load on the projectile in the form of impact pulses is transmitted through the sleeve 3 and the cover 7 to the upper end of the body; during rotational drilling, the torque is received by fingers 8 and 9,

Claims (1)

1. Drilling device d, comprising a casing of a tubular profile with a notch 4671644 in the wall and the working tip on the bottom end, the adapter, the attachment unit to the drive and the removable wall g covering the cutout of the body, so that, in order to improve reliability and reduce labor costs for assembly and disassembly of the projectile during unloading 10 soils, it is equipped with a guide rod rigidly fixed in the upper part of the body and removable wall clamps, the removable wall rigidly attached to the adapter, the latter is made in the form of a sleeve placed concentrically with the body axis installed in the upper part of the sleeve, and its lower part is made in the form of a claw, 20 interacting with the upper end of the body, while the directing current is placed inside the sleeve and has a fix stator, and the sleeve with a removable wall is made} with the possibility of 25 in both directions of the reciprocating movement relative to the body and locking the lock in the upper and lower positions, 30 2, Drilling rim in accordance with clause 1, which is the fact that a flip is made on the guide rod, and the removable wall clamps are made in the form of fingers with flats installed in the sleeve with the possibility of rotation and interaction with the flat, made on the guide rod. m I A-A