CN113047800A

CN113047800A - Rotary digging drill bit fisher

Info

Publication number: CN113047800A
Application number: CN202110348071.0A
Authority: CN
Inventors: 李常伟
Original assignee: Chengdu Xinhao Foundation Engineering Co ltd
Current assignee: Chengdu Xinhao Foundation Engineering Co ltd
Priority date: 2021-03-31
Filing date: 2021-03-31
Publication date: 2021-06-29

Abstract

The invention discloses a rotary drill bit fisher, belonging to the technical field of fishers, and particularly relates to a rotary drill bit fisher, which comprises a guide cylinder, wherein the upper end of the guide cylinder is fixedly provided with a power input connecting square head, the upper end inside the guide cylinder is fixedly provided with a cylindrical pin, the left end of the cylindrical pin is fixedly provided with a pressure spring, the left end of the pressure spring is fixedly provided with a traction rope, the right end of the cylindrical pin is fixedly provided with a pin limiting plate, two ends above the inside of the guide cylinder are fixedly provided with symmetrical enlarged guide cylinder mounting shafts, the lower end of the inner wall of the guide cylinder is fixedly provided with a detachable spiral plate, the left end of the detachable spiral plate is longitudinally provided with a detachable hook head, the traditional manual fishing of a round drill bit main body part and a sand closing plate on a round drill bit is effectively replaced, the personal safety of operating personnel is ensured, and each, various combinations are verified, and the round drill bit can be salvaged under the condition that all parts of the round drill bit fall into a deep well.

Description

Rotary digging drill bit fisher

Technical Field

The invention relates to the technical field of fishers, in particular to a rotary drilling bit fisher.

Background

The rotary drilling bit fisher is a multifunctional composite type drill bit fisher, when a main body part (including two conditions of a main body with a damaged connecting square head and a main body with an undamaged connecting square head) of a round drilling bit used on a rotary drilling rig or a sand-closing plate on the round drilling bit falls into a deep well due to reasons, the fisher can be loaded on the rotary drilling rig to salvage the deep well, the situation that the deep well needs to be salvaged by personnel in the past is directly changed, the operating environment is effectively changed, the personal safety of the operating personnel is guaranteed, in addition, each salvage execution element of the fisher is detachable, flexible and variable, various combinations are verified, and the fisher can be salvaged under the condition that each part of the round drilling bit falls into the deep well.

Disclosure of Invention

The invention aims to provide a rotary drilling bit fisher to solve the problems that the conventional method for fishing a main body part and a round drill bit in the prior art is implemented through manual fishing, the mode cannot guarantee the personal safety of operators, the fishing is troublesome, and the fishing is influenced by the operating environment.

In order to achieve the purpose, the invention provides the following technical scheme: dig drill bit fisher soon, including the guide cylinder, the fixed power input connection square head that is provided with in upper end of guide cylinder, the fixed cylindric lock that is provided with in the inside upper end of guide cylinder, the fixed pressure spring that is provided with in left end of cylindric lock, the fixed haulage rope that is provided with in left end of pressure spring, the fixed pin limiting plate that is provided with of right-hand member of cylindric lock, the fixed increaseing guide cylinder installation axle that is provided with the symmetry in both ends of the inside top of guide cylinder, the fixed removable spiral plate that is provided with of lower extreme of guide cylinder inner wall, the left end of removable spiral plate vertically is provided with.

Preferably, the inner cavity of the power input connecting square head is square, and reinforcing steel plates which are uniformly distributed are fixedly arranged on the side wall of the power input connecting square head.

Preferably, two the removable eave tile is the symmetry and sets up the inside of guide cylinder, two the lower extreme of removable eave tile all extends to the lower extreme of guide cylinder.

Compared with the prior art, the invention has the beneficial effects that:

through the guide cylinder, power input connects square head, the cylindric lock, the pressure spring, increase the common cooperation of guide cylinder installation axle and removable eave tile, effectively replaced the manual work in the past to round drill head main part and round drill overhead sand board salvage, not only ensured operation personnel's personal safety, the execution element is dismantled in each salvage of fisher, and is nimble changeable, and various combinations are verified, can all salvage it to the condition that each part of round drill head fell into the deep well.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic front view of the operation scenario 1;

FIG. 3 is a schematic front view of the operation scenario 2;

FIG. 4 is a schematic bottom view of the work station 2;

FIG. 5 is a schematic front view of the operation scenario 3;

fig. 6 is a schematic bottom view of the working situation 3.

In the figure: the guide cylinder 1, the power input connecting square head 2, the cylindrical pin 3, the pressure spring 4, the traction rope 5, the pin limiting plate 6, the enlarged guide cylinder mounting shaft 7, the detachable spiral plate 8 and the detachable hook 9.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Example (b):

referring to fig. 1-6, the present invention provides a technical solution: dig drill bit fisher soon, including guide cylinder 1, the fixed power input connection square head 2 that is provided with in upper end of guide cylinder 1, the fixed cylindric lock 3 that is provided with in 1 inside upper end of guide cylinder, the fixed pressure spring 4 that is provided with in left end of cylindric lock 3, the fixed haulage rope 5 that is provided with in left end of pressure spring 4, the fixed pin limiting plate 6 that is provided with of right-hand member of cylindric lock 3, the fixed increase guide cylinder installation axle 7 that is provided with the symmetry in both ends of 1 inside top of guide cylinder, the fixed removable spiral plate 8 that is provided with of lower extreme of 1 inner wall of guide cylinder, the left end of removable spiral plate 8 vertically is provided with removable eave tile 9.

The inner cavity of the power input connecting square head 2 is square, and reinforcing steel plates which are uniformly distributed are fixedly arranged on the side wall of the power input connecting square head 2.

The two detachable hook heads 9 are symmetrically arranged inside the guide cylinder 1, and the lower ends of the two detachable hook heads 9 extend to the lower end of the guide cylinder 1 (as shown in fig. 1).

The working principle is as follows: (1) working condition 1: the fishing method when the round drill bit with undamaged connecting square head falls into the deep well comprises the following steps: when a round drill bit with an undamaged connecting square head falls into a deep well, a rotary drill bit fisher is adjusted and installed to be in an upper graph form, the fisher is placed into the deep well under the action of a rotary drilling rig, the inner diameter of a guide cylinder of the fisher is slightly larger than that of the round drill bit, so that the round drill bit can be gradually guided and aligned through the guide cylinder 1, after the round drill bit is guided and aligned, the fisher is gradually placed downwards in a left-right rotating mode, after a connecting square head on the inner wall of the fisher enters an installation square cavity of the round drill bit, the fisher continues to move downwards, so that a cylindrical pin 3 enters the installation square cavity of the round drill bit, meanwhile, a pin limiting plate 6 is only welded on the wall of the square head in a spot mode and plays a role in stopping a spring to pop the cylindrical pin 3, the pin limiting plate 6 is easily flushed on the wall of the round drill bit, so that the cylindrical pin moves outwards under the action of spring elasticity, gradually finding a pin hole on the square cavity connected with the round drill bit, inserting the cylindrical pin 3 into the pin hole of the square pile of the round drill bit, and meanwhile, fixing a traction rope at the tail end of the cylindrical pin 3, so that the cylindrical pin 3 is prevented from being separated from a preset position, and fishing is realized;

(2) operation condition 2: the fishing method when the round drill bit with the damaged connecting square head falls into the deep well comprises the following steps: when a round drill bit with a damaged connecting square head falls into a deep well, adjusting and installing a rotary drill bit fisher to an upper graph type, namely, detaching a fisher part containing a spring and a cylindrical pin 3 before, and installing a spiral detachable fisher shown in an upper graph on a guide cylinder 1, so that after the four spiral detachable fishers are installed, the diameter of the tip of the bottom layer of the fishing bit is slightly larger than the outer diameter of the round drill bit, the diameter of the top part of the fishing bit is smaller than the inner diameter of the outer wall of the round drill bit, and the round drill bit can be rotated to the top surface of the spiral detachable fisher under the action of the spiral surface of the fisher through downward rotating motion, so that the round drill bit with the damaged connecting square head can be taken out;

(3) operation condition 3: the fishing method when the sand-blocking plate on the round drill bit falls into the deep well comprises the following steps: when a sand closing plate on a round drill bit falls into a deep well, adjusting and installing a rotary drill bit fisher, namely detaching the fisher introduced before, installing a detachable hook head, wherein the sand closing plate is provided with two sand inlet fan-shaped openings, the detachable hook head of the fisher enters the sand closing plate from the fan-shaped openings, and then the fisher is rotated to hook the sand closing plate;

in addition, due to the fact that the circular drill bits are various in types and different in diameter, the fishing tool is designed to increase the guide cylinder installation shaft according to the situation, the guide cylinder can be conveniently replaced through the installation shaft, and the circular drill bits different in size can be fished for deep wells through the same method.

While there have been shown and described the fundamental principles and essential features of the invention and advantages thereof, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Dig drill bit fisher soon, including guide cylinder (1), its characterized in that, the fixed power input connection square head (2) that is provided with in upper end of guide cylinder (1), the fixed cylindric lock (3) that is provided with in upper end of guide cylinder (1) inside, the left end of cylindric lock (3) is fixed and is provided with pressure spring (4), the left end of pressure spring (4) is fixed and is provided with haulage rope (5), the fixed pin limiting plate (6) that is provided with of right-hand member of cylindric lock (3), the fixed increasement guide cylinder installation axle (7) that is provided with the symmetry in both ends of guide cylinder (1) inside top, the fixed removable spiral plate (8) that is provided with of lower extreme of guide cylinder (1) inner wall, the left end of removable spiral plate (8) vertically is provided with removable eave.

2. The rotary drilling bit fisher according to claim 1, wherein: the inner cavity of the power input connecting square head (2) is square, and reinforcing steel plates which are uniformly distributed are fixedly arranged on the side wall of the power input connecting square head (2).

3. The rotary drilling bit fisher according to claim 1, wherein: two removable eave tile (9) are the symmetry and set up the inside of guide cylinder (1), two the lower extreme of removable eave tile (9) all extends to the lower extreme of guide cylinder (1).