Anti-stick-slip drilling tool

Abstract

The utility model relates to the technical field of drilling tools, and discloses an anti-stick-slip drilling tool which comprises a drill bit, a drill bit mounting mechanism is arranged at the bottom of the drill bit, and an anti-stick-slip mechanism is arranged at the bottom of the drill bit mounting mechanism. According to the anti-stick-slip well drilling tool, a cross-shaped inserting block is inserted into a drill rod, a second bolt is inserted, a nut and a gasket are utilized, the anti-stick-slip assembly can be fixed, when the drill rod drives a drill bit to rotate and stick-slip occurs, the drill bit stops rotating, the drill rod then rotates, a connecting plate is driven to rotate, and the anti-stick-slip assembly is fixed. At the moment, a movable column drives a screwing connecting column to rotate, the screwing connecting column is spirally bent in a circular groove column, and when the screwing connecting column is bent, the movable column moves in the circular groove column, so that a worker has enough time to stop rotation of the drill rod; due to the design of the bent screwing connecting column, enough buffer time is provided for the stick-slip situation, and the situation that the drill rod is damaged is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling tools, in particular to a drilling tool with anti-sticking and slipping function. Background Art

[0002] The work of drilling holes in the ground using mechanical equipment or manpower is called drilling. When the drill bit transitions between different rock types, torsional vibration will occur, resulting in stick-slip phenomenon, which can cause damage to the drill bit. Therefore, it is necessary to use anti-stick-slip drilling tools for drilling operations.

[0003] According to a drilling tool disclosed on the patent website (authorization announcement number: CN 105649540 B), "The present invention discloses a drilling tool, including: a connecting shaft with an axis; a plurality of blades arranged on the connecting shaft; cutting teeth arranged on the blades; a driving unit is arranged on the end face of the cutting teeth, and the cutting unit is cooperatively connected with the driving unit; the driving unit can change the force surface of the cutting unit when cutting by rotating the cutting unit. By installing the cutting unit and the driving unit connected thereto in the cutting teeth, the driving unit can change the force surface of the cutting unit when cutting by rotating the cutting unit, so that uniform force is applied to each surface of the cutting teeth during the drilling process of the drilling tool, thereby avoiding damage to the cutting teeth due to unilateral force and affecting the life of the drill bit."

[0004] In view of the above description, the applicant believes that there are the following problems:

[0005] During use, the utility model can reduce damage to the cutting teeth and increase the service life of the cutting teeth by evenly applying force to the cutting teeth during drilling. However, in actual use, the device does not have an anti-stick-slip structure, which causes the drill bit to stop suddenly when encountering a stick-slip phenomenon, and the drill rod then rotates, causing damage to the drill rod. Therefore, it is necessary to improve a drilling tool with anti-stick-slip function to solve the above problem. Utility Model Content

[0006] The utility model aims to provide a drilling tool with anti-stick-slip function to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above objectives, the utility model provides the following technical solutions: a drilling tool with anti-stick-slip function, comprising a drill bit, a drill bit mounting mechanism is provided at the bottom of the drill bit, and an anti-stick-slip mechanism is provided at the bottom of the drill bit mounting mechanism.

[0008] The anti-stick-slip mechanism comprises an anti-stick-slip component and a docking installation component, and the docking installation component is arranged at the bottom of the anti-stick-slip component.

[0009] Preferably, the drill bit mounting mechanism includes an internally threaded groove column, which is fixedly mounted on the bottom of the drill bit, a positioning column is fixedly mounted on the bottom of the internally threaded groove column, a slot column is slidably mounted on the outside of the positioning column, and a bolt is arranged inside the slot column to facilitate the installation and disassembly of the drill bit through the drill bit mounting mechanism.

[0010] Preferably, the internal thread groove column is slidably installed inside the slot column, and the bolt is threadedly installed inside the internal thread groove column, which is convenient for fixing under normal conditions.

[0011] Preferably, the anti-stick-slip component includes a circular groove column, which is fixedly installed at the bottom of the slot column, a screw-connecting column is fixedly installed on the inner side of the top of the circular groove column, a movable column is fixedly installed at the bottom of the screw-connecting column, and a connecting plate is fixedly installed at the bottom of the movable column, so as to prevent damage to the drill rod through the anti-stick-slip component when a stick-slip situation occurs.

[0012] Preferably, holes are provided at corresponding positions of the circular groove column and the movable column, and the movable column is movably installed inside the hole provided inside the circular groove column, so as to facilitate the movement of the movable column under normal conditions.

[0013] Preferably, the docking installation assembly includes a cross plug block, which is fixedly installed at the bottom of the connecting plate, and a drill rod is slidably installed on the outside of the cross plug block. A second bolt is provided inside the drill rod, and a nut is installed on the external thread of the second bolt. A gasket is provided on the outside of the second bolt to facilitate the installation of the anti-stick-slip assembly and the drill rod through the docking installation assembly.

[0014] Preferably, holes are provided at positions corresponding to the cross plug block and the second bolt, and the second bolt is slidably installed inside the hole provided inside the cross plug block, thereby improving stability.

[0015] Compared with the prior art, the utility model provides a drilling tool with anti-stick and slip properties, which has the following beneficial effects:

[0016] 1. The anti-stick-slip drilling tool has an anti-stick-slip mechanism. During use, the cross plug block is inserted into the interior of the drill pipe, the bolt 2 is inserted, and the anti-stick-slip component can be fixed by nuts and gaskets. When the drill pipe drives the drill bit to rotate and encounters a stick-slip situation, the drill bit stops rotating, and the drill pipe continues to rotate, driving the connecting plate to rotate. At this time, the movable column drives the twisting connecting column to rotate, so that the twisting connecting column is spirally bent inside the circular groove column. When the twisting connecting column is bent, the movable column moves inside the circular groove column, so that the staff has enough time to stop the rotation of the drill pipe. The design of the bent twisting connecting column provides sufficient buffer time for encountering a stick-slip situation, thereby avoiding damage to the drill pipe.

[0017] 2. The anti-stick and slip drilling tool has a drill bit installation mechanism. During use, the positioning pin at the bottom of the internal thread groove column is aligned with the slot column and then inserted so that the positioning pin is inserted into the interior of the slot column. After being inserted to the bottom, the internal thread groove column enters the interior of the slot column. At this time, bolt one is turned to fix the internal thread groove column with bolt one, and the drill bit can be installed or replaced. The drill bit can be removed by reverse operation, thereby realizing the function of installing and removing the drill bit. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:

[0019] Figure 1 This is a schematic diagram of the appearance structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the appearance structure of the anti-stick-slip mechanism of the utility model;

[0021] Figure 3 This is a schematic diagram of the appearance structure of the anti-stick-slip component of the utility model;

[0022] Figure 4 This is a schematic diagram of the exploded appearance structure of the docking installation assembly of the utility model;

[0023] Figure 5 The figure is a schematic diagram of the exploded appearance structure of the drill bit installation mechanism of the utility model.

[0024] In the figure: 1. drill bit; 2. drill bit installation mechanism; 21. internal thread groove column; 22. positioning plug column; 23. slot column; 24. bolt one; 3. anti-stick-slip mechanism; 31. anti-stick-slip assembly; 311. round groove column; 312. screw connection column; 313. movable column; 314. connecting plate; 32. docking installation assembly; 321. cross plug block; 322. drill rod; 323. bolt two; 324. nut; 325. gasket. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] Embodiment 1:

[0028] See also Figure 1-4 The utility model provides a technical solution: a drilling tool with anti-stick-slip function, comprising a drill bit 1, a drill bit mounting mechanism 2 is arranged at the bottom of the drill bit 1, and an anti-stick-slip mechanism 3 is arranged at the bottom of the drill bit mounting mechanism 2.

[0029] The anti-stick-slip mechanism 3 includes an anti-stick-slip component 31 and a docking installation component 32 . The docking installation component 32 is arranged at the bottom of the anti-stick-slip component 31 .

[0030] Furthermore, the anti-stick-slip component 31 includes a grooved column 311, which is fixedly installed at the bottom of the slot column 23. A screw-connecting column 312 is fixedly installed on the inner side of the top of the grooved column 311, a movable column 313 is fixedly installed at the bottom of the screw-connecting column 312, and a connecting plate 314 is fixedly installed at the bottom of the movable column 313, so as to prevent the drill rod 322 from being damaged when a stick-slip situation occurs through the anti-stick-slip component 31.

[0031] Furthermore, holes are provided at corresponding positions of the circular groove column 311 and the movable column 313 , and the movable column 313 is movably installed inside the hole provided inside the circular groove column 311 , so as to facilitate the movement of the movable column 313 under normal conditions.

[0032] Furthermore, the docking installation component 32 includes a cross plug block 321, which is fixedly installed at the bottom of the connecting plate 314. A drill rod 322 is slidably installed on the outside of the cross plug block 321. A bolt 323 is provided inside the drill rod 322. A nut 324 is threadedly installed on the external surface of the bolt 323. A gasket 325 is provided outside the bolt 323 to facilitate the installation of the anti-stick-slip component 31 and the drill rod 322 through the docking installation component 32.

[0033] Furthermore, holes are provided at corresponding positions of the cross plug block 321 and the second bolt 323 , and the second bolt 323 is slidably installed inside the hole provided inside the cross plug block 321 , thereby improving stability.

[0034] Embodiment two:

[0035] See also Figure 5 In combination with Example 1, it is further obtained that the drill bit mounting mechanism 2 includes an internal thread groove column 21, the internal thread groove column 21 is fixedly installed at the bottom of the drill bit 1, a positioning column 22 is fixedly installed at the bottom of the internal thread groove column 21, a slot column 23 is slidably installed outside the positioning column 22, and a bolt 24 is arranged inside the slot column 23, which is convenient for installing and disassembling the drill bit 1 through the drill bit mounting mechanism 2.

[0036] Furthermore, the internal thread groove column 21 is slidably installed inside the slot column 23, and the bolt 24 is threadedly installed inside the internal thread groove column 21, which is convenient for fixing under normal conditions.

[0037] In actual operation, when this device is used, the positioning pin 22 at the bottom of the internal threaded groove column 21 is aligned with the slot column 23 and then inserted, so that the positioning pin 22 is inserted into the interior of the slot column 23. After being inserted to the bottom, the internal threaded groove column 21 enters the interior of the slot column 23. At this time, turn the bolt 1 24 so that the bolt 1 24 fixes the internal threaded groove column 21, and the installation or replacement of the drill bit 1 is completed. The drill bit 1 can be removed by reverse operation, realizing the function of installing and removing the drill bit 1, inserting the cross plug block 321 into the interior of the drill rod 322, inserting the bolt 2 323, and using the nut 324 and the gasket 325 to complete the anti-stick-slip assembly 31 is fixed, when the drill rod 322 drives the drill bit 1 to rotate, when encountering a stick-slip situation, the drill bit 1 stops rotating, and the drill rod 322 continues to rotate, driving the connecting plate 314 to rotate. At this time, the movable column 313 drives the twisting connecting column 312 to rotate, so that the twisting connecting column 312 is spirally bent inside the circular groove column 311. When the twisting connecting column 312 is bent, the movable column 313 moves inside the circular groove column 311, so that the staff has enough time to stop the rotation of the drill rod 322. The design of the bent twisting connecting column 312 provides sufficient buffer time when encountering a stick-slip situation, thereby avoiding damage to the drill rod 322.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A drilling tool with anti-stick-slip function, comprising a drill bit (1), characterized in that: A drill bit mounting mechanism (2) is provided at the bottom of the drill bit (1), and an anti-stick-slip mechanism (3) is provided at the bottom of the drill bit mounting mechanism (2); The anti-stick-slip mechanism (3) comprises an anti-stick-slip component (31) and a docking installation component (32), wherein the docking installation component (32) is arranged at the bottom of the anti-stick-slip component (31).

2. The anti-stick-slip drilling tool according to claim 1, characterized in that: The drill bit mounting mechanism (2) comprises an internal thread groove column (21), the internal thread groove column (21) is fixedly mounted on the bottom of the drill bit (1), a positioning column (22) is fixedly mounted on the bottom of the internal thread groove column (21), a slot column (23) is slidably mounted on the outside of the positioning column (22), and a bolt (24) is arranged inside the slot column (23).

3. The anti-stick-slip drilling tool according to claim 2, characterized in that: The internal thread groove column (21) is slidably installed inside the slot column (23), and the bolt 1 (24) is threadedly installed inside the internal thread groove column (21).

4. The anti-stick-slip drilling tool according to claim 1, characterized in that: The anti-stick-slip component (31) comprises a circular groove column (311), wherein the circular groove column (311) is fixedly mounted at the bottom of the slot column (23), a screwing connection column (312) is fixedly mounted on the inner side of the top of the circular groove column (311), a movable column (313) is fixedly mounted at the bottom of the screwing connection column (312), and a connecting plate (314) is fixedly mounted at the bottom of the movable column (313).

5. The anti-stick-slip drilling tool according to claim 4, characterized in that: Holes are provided at corresponding positions of the circular groove column (311) and the movable column (313), and the movable column (313) is movably installed inside the hole provided inside the circular groove column (311).

6. The anti-stick-slip drilling tool according to claim 1, characterized in that: The docking installation assembly (32) comprises a cross plug block (321), the cross plug block (321) is fixedly installed at the bottom of the connecting plate (314), a drill rod (322) is slidably installed on the outside of the cross plug block (321), a second bolt (323) is arranged inside the drill rod (322), a nut (324) is threadedly installed on the outside of the second bolt (323), and a gasket (325) is arranged on the outside of the second bolt (323).

7. The anti-stick-slip drilling tool according to claim 6, characterized in that: The cross plug block (321) and the second bolt (323) are provided with holes at corresponding positions, and the second bolt (323) is slidably installed inside the hole provided inside the cross plug block (321).

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