Welded drill rod capable of reducing deformation

Abstract

The utility model discloses a welding type drill rod capable of reducing deformation, and relates to the technical field of drill rods, the welding type drill rod comprises a drill rod front section and a cooling mechanism, the cooling mechanism used for automatic cooling is arranged in the middle of the inner side of the drill rod front section, and the cooling mechanism comprises a liquid storage cavity, a flow guide channel, an end socket, cooling liquid, a liquid adding opening, an installation screw cover and a sealing gasket. The two sides of the middle of the liquid storage cavity communicate with flow guide channels, and end sockets are fixed to the foremost ends of the flow guide channels. Compared with an existing device, according to the welding type drill rod capable of reducing deformation, through cooperation of all parts of the cooling mechanism, the rod body can be kept in a low-temperature state through internal low-temperature cooling liquid when the front section of the drill rod works, meanwhile, when the rod body generates heat due to friction during long-time working, heat absorption and cooling can be conducted, and the welding type drill rod is convenient to use. Therefore, the possibility of long-time thermal deformation of the rod body can be reduced, and the service life of the rod body can be prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of drill rods, in particular to a welded drill rod capable of reducing deformation. Background Art

[0002] With the rapid development of economy, people are paying more and more attention to the safety and quality of the surrounding production, life and living environment. There are more and more activities such as environmental investigation, engineering exploration, geological investigation and model building. The demand for soil core drilling and sampling is also increasing, and drilling often requires the cooperation of drill rods.

[0003] However, the existing drill pipe has poor thermal conductivity and cooling ability when working. When working deep in rock or land for a long time, the temperature of the rod body will continue to rise as the drilling progresses. If it cannot be cooled well, the rod body will be deformed or even damaged by the heat, which is not conducive to the long-term use of the drill pipe.

[0004] Therefore, the existing structure and defects are studied and improved, and a welded drill rod with reduced deformation is provided, so as to achieve the purpose of having more practical value. Utility Model Content

[0005] The purpose of the utility model is to provide a welded drill rod with reduced deformation, so as to solve the problem in the above background technology that the existing drill rod has poor heat conduction and cooling ability when working. When working deep in rock or land for a long time, the temperature of the rod body will continue to rise as the drilling progresses. If the temperature cannot be well cooled, the rod body will be deformed or even damaged by heat, which is not conducive to the long-term use of the drill rod.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a welded drill rod with reduced deformation, comprising a front section of the drill rod and a cooling mechanism, wherein the cooling mechanism for automatic cooling is arranged at the inner middle part of the front section of the drill rod, and the cooling mechanism comprises a liquid storage chamber, a flow guide channel, a head, a coolant, a liquid filling port, a mounting screw cover and a sealing gasket, the middle sides of the liquid storage chamber are connected with the flow guide channel, and the front end of the flow guide channel is fixed with a head, the inner middle part of the liquid storage chamber is provided with a coolant, and the upper side of the liquid storage chamber is provided with a liquid filling port, the inner front end of the liquid filling port is provided with a mounting screw cover, and the outer middle part of the mounting screw cover is provided with a sealing gasket.

[0007] Furthermore, a weld is provided at the top of the front section of the drill rod, and a rear section of the drill rod is provided above the weld.

[0008] Furthermore, the front section of the drill rod is welded to the rear section of the drill rod through a weld, and a wear-resistant mechanism for resisting friction is fixed to the bottom of the front section of the drill rod.

[0009] Furthermore, the wear-resistant mechanism includes a drill bit and diamonds, and diamonds are fixed on both sides of the lower exterior of the drill bit.

[0010] Furthermore, the wear-resistant mechanism also includes a first fixing layer, and the outer surface of the drill bit is provided with the first fixing layer.

[0011] Furthermore, the wear-resistant structure further includes a second fixed layer, and the second fixed layer is arranged inside the first fixed layer.

[0012] Compared with the prior art, the utility model provides a welded drill rod with reduced deformation, which has the following beneficial effects:

[0013] 1. The utility model can use the internal low-temperature coolant to keep the rod body at a low temperature when the front section of the drill rod is working, through the cooperation between the various parts of the cooling mechanism. At the same time, when the rod body generates heat due to friction during long-term work, it can also absorb heat and cool down, thereby reducing the possibility of deformation of the rod body due to long-term heat, which is conducive to prolonging the service life of the rod body;

[0014] 2. The utility model can improve the friction and working intensity of the drill rod when it is working through the cooperation between the various parts of the wear-resistant mechanism, so that the working effect of the drill rod is better, and the drill rod has the advantages of low friction coefficient, high wear resistance, high impact resistance and strong oxidation resistance, thereby further improving the service life of the drill rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall external three-dimensional structure of a welded drill rod with reduced deformation according to the utility model;

[0016] Figure 2 This is a schematic diagram of the front view of the internal structure of the front section of a welded drill pipe with reduced deformation according to the utility model;

[0017] Figure 3 The utility model is a welded drill rod with reduced deformation Figure 2 The enlarged structural diagram at A in the middle;

[0018] Figure 4 The utility model is a welded drill rod with reduced deformation Figure 2 Enlarged structural diagram at B in the middle.

[0019] In the figure: 1. front section of drill pipe; 2. weld; 3. rear section of drill pipe; 4. cooling mechanism; 401. liquid storage chamber; 402. flow guide channel; 403. head; 404. coolant; 405. liquid filling port; 406. installation screw cover; 407. sealing gasket; 5. wear-resistant mechanism; 501. drill bit; 502. diamond; 503. first fixed layer; 504. second fixed layer. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present invention; the terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention; the term "and / or" used herein includes any and all combinations of one or more related listed items.

[0022] like Figure 1-Figure 3 As shown, a welded drill pipe for reducing deformation includes a drill pipe front section 1 and a cooling mechanism 4, the cooling mechanism 4 for automatic cooling is arranged at the inner middle part of the drill pipe front section 1, the cooling mechanism 4 includes a liquid storage chamber 401, a flow guide 402, a head 403, a coolant 404, a liquid filling port 405, a mounting screw cover 406 and a sealing gasket 407, the middle of the liquid storage chamber 401 is connected with the flow guide 402 on both sides, and the front end of the flow guide 402 is fixed with the head 403, the inner middle part of the liquid storage chamber 401 is provided with a coolant 404, and the upper side of the liquid storage chamber 401 is provided with a liquid filling port 405, the inner front end of the liquid filling port 405 is installed with a mounting screw cover 406, and the outer middle part of the mounting screw cover 406 is provided with a sealing gasket 407, the top of the drill pipe front section 1 is provided with a weld 2, and the upper part of the weld 2 is provided with a drill pipe rear section 3;

[0023] Through the liquid filling port 405, after the installation screw cover 406 and the sealing gasket 407 are screwed and removed, the pre-cooled coolant 404 can be added into the liquid storage chamber 401, and the coolant 404 can be diffused to the inner periphery of the front section 1 of the drill pipe by using the flow guide 402, so that when the front section 1 of the drill pipe is working, the coolant 404 with low temperature inside can be used to keep the rod body in a low temperature state, and when the rod body generates heat due to friction during long-term operation, heat absorption and cooling can also be performed, so as to reduce the possibility of deformation of the rod body due to long-term heat, thereby facilitating the service life of the rod body;

[0024] like Figure 1 , Figure 2 and Figure 4As shown, the front section 1 of the drill pipe is welded to the rear section 3 of the drill pipe through a weld 2, and a wear-resistant mechanism 5 for friction resistance is fixed to the bottom of the front section 1 of the drill pipe, the wear-resistant mechanism 5 includes a drill bit 501 and a diamond 502, and diamonds 502 are fixed on both sides of the lower outside of the drill bit 501, and the wear-resistant mechanism 5 also includes a first fixed layer 503, and the outer surface of the drill bit 501 is provided with the first fixed layer 503, and the wear-resistant mechanism 5 also includes a second fixed layer 504, and the interior of the first fixed layer 503 is provided with the second fixed layer 504. Through the diamond 502, the friction force and working intensity of the drill pipe during operation can be improved, so that the working effect of the drill pipe is better, and through the first fixed layer 503 and the second fixed layer 504, which are deposited TiAlVN layer and TiAlSiN layer respectively, the drill pipe has the advantages of low friction coefficient, high wear resistance, high impact resistance and strong oxidation resistance, thereby further improving the service life of the drill pipe.

[0025] Working principle: When using the welded drill pipe with reduced deformation, first, through the liquid filling port 405, after unscrewing and removing the installation thread cover 406 and the sealing gasket 407, the pre-cooled coolant 404 is added into the liquid storage chamber 401, and then the guide channel 402 is used to diffuse the coolant 404 to the inner periphery of the front section 1 of the drill pipe, so that when the front section 1 of the drill pipe is working, the internal low-temperature coolant 404 can be used to keep the rod body in a low-temperature state. At this time, the diamond 502 can be used to improve the friction and working strength of the drill pipe during operation. Finally, the first fixed layer 503 and the second fixed layer 504 are deposited to further ensure the strength and life of the drill pipe.

[0026] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A welded drill pipe with reduced deformation, comprising a front section of the drill pipe (1) and a cooling mechanism (4), characterized in that: The cooling mechanism (4) for automatic cooling is arranged at the middle part of the inner side of the front section (1) of the drill pipe, and the cooling mechanism (4) comprises a liquid storage chamber (401), a flow guide (402), a sealing head (403), a coolant (404), a liquid filling port (405), a mounting screw cover (406) and a sealing gasket (407). The flow guide (402) is connected to both sides of the middle part of the liquid storage chamber (401), and the sealing head (403) is fixed at the front end of the flow guide (402). The cooling liquid (404) is arranged at the middle part of the inner side of the liquid storage chamber (401), and the liquid filling port (405) is opened on one side above the liquid storage chamber (401). The mounting screw cover (406) is installed at the front end of the inner side of the liquid filling port (405), and the sealing gasket (407) is arranged at the middle part of the outer side of the mounting screw cover (406).

2. A welded drill pipe with reduced deformation according to claim 1, characterized in that: A weld (2) is arranged at the top end of the drill rod front section (1), and a drill rod rear section (3) is arranged above the weld (2).

3. A welded drill pipe with reduced deformation according to claim 2, characterized in that: The drill rod front section (1) is welded to the drill rod rear section (3) via a weld (2), and a wear-resistant mechanism (5) for resisting friction is fixed to the bottom of the drill rod front section (1).

4. A welded drill pipe with reduced deformation according to claim 3, characterized in that: The wear-resistant mechanism (5) comprises a drill bit (501) and diamonds (502), and the diamonds (502) are fixed on both sides of the lower exterior of the drill bit (501).

5. A welded drill pipe with reduced deformation according to claim 4, characterized in that: The wear-resistant mechanism (5) further comprises a first fixing layer (503), and the outer surface of the drill bit (501) is provided with the first fixing layer (503).

6. A welded drill pipe with reduced deformation according to claim 5, characterized in that: The wear-resistant structure (5) further comprises a second fixing layer (504), and the second fixing layer (504) is arranged inside the first fixing layer (503).

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