CN201507250U

CN201507250U - Threaded connection drill stem

Info

Publication number: CN201507250U
Application number: CN2009203056569U
Authority: CN
Inventors: 王乐康
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-07-04
Filing date: 2009-07-04
Publication date: 2010-06-16
Anticipated expiration: 2019-07-04

Abstract

The utility model discloses a threaded connection drill stem, which comprises a hollow drill stem main body, wherein one end of the drill stem main body is provided with an annular body connector, the annular body is provided with an outer thread, and two lug bosses are provided with two flanges and two limiting blocks corresponding to each other, and the outer thread of the connector is matched with the inner thread of a connection tail. The threaded connection form of the threaded connection drill stem is of a double-threaded rectangular thread structure, so the connector strength of the drill stem is improved, and the disassembling torque is reduced. The two flanges and the trapezoid limiting blocks are arranged on two opposite outer walls of the connection tail of the annular body, two trapezoid lug bosses are arranged on the outer wall of the connector of the annular body, and the threaded connection drill stem is equipped with a special drill stem disassembling device so as to conveniently disassemble the drill stem, so the disassembling speed can be improved, the disassembling is safe and saves labor, and the auxiliary time of the drill machine during the working process can be shortened.

Description

Drilling rod is threaded

Technical field

The utility model relates to the drilling rod parts of a kind of industry, agricultural development groundwater resources and bridge, construction work usefulness rig.

Background technology

The present trepan of using, drilling rod in unloading process especially large type drill need many people to cooperate, and dismounting is more loaded down with trivial details, effort, and has potential safety hazard, has increased the non-cutting time in the production operation process.

The utility model content

The purpose of this utility model is to provide a kind of simple in structure, dependable performance, the drilling rod that is threaded for convenience detach.

For achieving the above object, the utility model drilling rod that is threaded comprises a hollow drill main body, and drilling rod main body one end is fixed a ring bodies joint, and ring bodies is provided with external screw thread, two corresponding ring bodies outer walls that are arranged on of boss; The drilling rod main body other end is fixed a ring bodies that has internal thread and is connect tail, and the ring bodies outer wall is provided with corresponding two flanges and two limited blocks of being provided with, the joint external screw thread with connect the tail internal thread and cooperatively interact.

The internal thread that the external screw thread of described ring bodies joint and ring bodies connect tail is the double end rectangular thread.Described boss and limited block are trapezoidal.

The utility model drilling rod that is threaded, hollow drill main body two ends are fixed with the ring bodies joint and connect tail, be connected with the internal and external threads that connects tail by joint between the adjacent drill pipes, the utility model is simple and reasonable, the thread connection form is a double end rectangular thread structure, improves tool joint intensity and reduces removal torque.Described ring bodies connects the tail outer wall and is provided with two flanges and trapezoidal limited block relatively, ring bodies joint outer wall is provided with two trapezoid boss, the utility model is furnished with special-purpose drilling rod stripping attachment, conveniently drilling rod is dismantled, and can improve dismounting speed, safety labor-saving shortens the non-cutting time in the rig course of work.

Description of drawings

Fig. 1 is the be threaded stereogram of drilling rod of the utility model;

Fig. 2 is the three-dimensional structure diagram that ring bodies connects tail among the utility model Fig. 1;

Fig. 3 is the three-dimensional structure diagram of ring bodies joint among the utility model Fig. 1;

Fig. 4 is the three-dimensional structure diagram with the matching used drilling rod stripping attachment of the utility model.

The specific embodiment

As shown in Figure 1, the utility model drilling rod that is threaded, comprise a hollow drill main body 1, drilling rod main body one end is welded with a ring bodies joint 2, the other end is welded with a ring bodies and connects tail 3, and joint is provided with external screw thread, matches with the internal thread that connects the tail setting, the joint of a drilling rod is connected by double end rectangular thread structure with the tail that connects of another drilling rod during use, to improve tool joint intensity and to reduce removal torque.Described ring bodies connects corresponding two flanges 4 and two the trapezoidal limited blocks 5 of being provided with of tail outer wall, and described ring bodies joint outer wall is provided with two spacing trapezoid boss 6.

As shown in Figure 4, the stripping attachment that matches with utility model is that the ring place is corresponding in the big end is provided with two trapezoid boss 7, and small end is provided with the circular cavity 9 of internal thread, and small end is provided with dowel hole 8.Trapezoid boss plays positioning action when dismounting drilling rod, the other end adopts rectangle double end internal thread and two dowel holes, and stripping attachment inside is provided with enough cavitys to guarantee that the rig main shaft is not subjected to axial force when moving on the drilling rod in the drilling rod unloading process.

The unloading process of the utility model drilling rod is: 1, rig is after fulfiling assignment, the groove that the trapezoid boss 6 of the lower end male connection of the first segment drilling rod that will link with the rig main shaft places the rig work top is drilling rod fixedly, rig counter-rotating makes first segment drilling rod and the disengaging of rig main shaft then, is connected in stripping attachment on the rig main shaft and loads onto alignment pin.2, rotate the rig main shaft to the appropriate location and be about to the ring bodies of first segment drilling rod down and connect tail and be inserted in wherein, rotating the rig main shaft makes two trapezoid boss 7 of stripping attachment block drilling rod to connect behind the flange of tail and the trapezoidal limited block place and go upward to the appropriate location, make fixedly drilling rod of groove that the trapezoid boss of last end joint of the second joint drilling rod places the rig work top, rotation rig main shaft (opposite with operative orientation) can unclamp the first segment drilling rod.3, the operating process of dismounting second joint and later drilling rod repeats the 2nd process.

Claims

1.

A kind of drilling rod that is threaded comprises a hollow drill main body (1), it is characterized in that: drilling rod main body one end is fixed a ring bodies joint (2), and ring bodies is provided with external screw thread, the corresponding ring bodies outer wall that is arranged on of two boss (6); The drilling rod main body other end is fixed a ring bodies that has internal thread and is connect tail (3), and the ring bodies outer wall is provided with two flanges (4) and two limited blocks (5) of corresponding setting, the joint external screw thread with connect the tail internal thread and cooperatively interact.

2.

The drilling rod that is threaded according to claim 1 is characterized in that: the internal thread that (2) external screw thread of described ring bodies joint and ring bodies connect tail (3) is the double end rectangular thread.

3.

The drilling rod that is threaded according to claim 1 is characterized in that: described boss (6) and limited block (5) are for trapezoidal.