Drill bit for engineering geological drilling

Abstract

The utility model relates to the technical field of geological drilling, and discloses a drill bit for engineering geological drilling, which comprises a drill rod, a dismounting mechanism is arranged on the left side of the drill rod, a drilling mechanism is arranged on the left side of the dismounting mechanism, and the dismounting mechanism comprises a connecting block. According to the drill bit for engineering geological drilling, firstly, a first clamping block and a second clamping block stretch into a drill rod along a first moving groove and a second moving groove correspondingly, and then a connecting block rotates along a first arc groove and a second arc groove till the first clamping block and the second clamping block stretch into a first through hole and a second through hole under the elastic force action of a spring; the drill bit body can be fixed to a drill rod, if the drill bit body needs to be detached, the first clamping block and the second clamping block can be compressed into the first arc groove and the second arc groove with the help of a tool, then the connecting block is reversely rotated, the connecting block is taken out along the first moving groove and the second moving groove, and then the drill bit body can be detached when the drill bit body deforms due to high temperature.

Description

Technical Field

[0001] The utility model relates to the technical field of geological drilling, in particular to a drill bit for engineering geological drilling. Background Art

[0002] Geological drilling refers to a geological project that uses certain drilling machinery and technology to obtain rock and mineral cores below the surface in order to make reliable evaluations of geological and mineral resource parameters. It is an important technical means in geological exploration work and is mainly used to ascertain underground geological conditions.

[0003] In the process of engineering geological drilling, a drill bit is needed to drill holes and take samples. The high-speed rotation and contact between the drill bit and the rock will generate friction, which will cause the temperature of the drill bit to rise. If the temperature of the drill bit continues to rise, the high temperature will cause thermal expansion and thermal stress in the material of the drill bit. Long-term high temperature state will cause the thermal stability of the drill bit material to decrease, and may even cause thermal fatigue and thermal cracking of the material, thereby causing deformation, increased wear and even failure of the drill bit. Therefore, a drill bit for engineering geological drilling is proposed to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of the utility model is to provide a drill bit for engineering geological drilling to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a drill bit for engineering geological drilling, comprising a drill rod, a disassembly mechanism is arranged on the left side of the drill rod, and a drilling mechanism is arranged on the left side of the disassembly mechanism;

[0006] The disassembly and assembly mechanism includes a connecting block, which has two installation cavities distributed on the left and right. A slide is slidably connected to the inside of the installation cavity, and a spring is fixedly connected to one side of the slide. The front side of the left slide is fixedly connected to a first clamping block, and the rear side of the right slide is fixedly connected to a second clamping block.

[0007] Preferably, a connecting groove is opened on the left side of the drill rod, the connecting block is installed inside the connecting groove, and the left side of the connecting block extends to the left side of the drill rod.

[0008] Preferably, a first through hole matched with the first clamping block is formed on the front side of the connection block, and a second through hole matched with the second clamping block is formed on the rear side of the connection block.

[0009] Preferably, a first movable groove adapted to the moving trajectory of the first clamping block is opened on the left side of the drill rod, a first arc groove adapted to the rotation trajectory of the first clamping block is opened inside the drill rod, the first movable groove is connected to the first arc groove, a first through hole adapted to the first clamping block is opened on the front side of the drill rod, and the first through hole is connected to the first arc groove.

[0010] Preferably, a second movable groove adapted to the moving trajectory of the second clamping block is opened on the left side of the drill rod, a second arc groove adapted to the rotation trajectory of the second clamping block is opened inside the drill rod, the second movable groove is connected to the second arc groove, a second through hole adapted to the second clamping block is opened on the rear side of the drill rod, and the second through hole is connected to the second arc groove.

[0011] Preferably, the drilling mechanism comprises a drill body, and a heat dissipation strip is provided on the drill body.

[0012] Preferably, the drill body is fixedly connected to the left side of the connecting block, and the outer side of the drill body is coated with a thermal resistance layer.

[0013] Through the above technical solution, the thermal resistance layer is to evenly coat the non-metallic material silicon carbide on the surface of the drill body to form a solid coating. This coating has good thermal stability and wear resistance and can effectively reduce the surface temperature of the drill body.

[0014] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0015] First, the utility model first extends the first clamping block and the second clamping block into the drill rod along the first moving groove and the second moving groove respectively, and then rotates the connecting block along the first arc groove and the second arc groove until the first clamping block and the second clamping block extend into the first through hole and the second through hole under the elastic force of the spring, so that the drill body can be fixed on the drill rod. If the drill body needs to be removed, the first clamping block and the second clamping block can be compressed into the first arc groove and the second arc groove with the help of a tool, and then the connecting block is rotated in the opposite direction, and the connecting block is taken out along the first moving groove and the second moving groove, so that the drill body can be removed when it is deformed due to high temperature.

[0016] Second, the utility model increases the surface area of ​​the drill body by providing a heat dissipation strip on the drill body, thereby improving the efficiency of heat dissipation and achieving the heat dissipation effect. The thermal resistance layer has a thermal resistance effect and can reduce the temperature of the drill bit. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0018] Figure 2 This is a three-dimensional schematic diagram of the connection between the connection block and the drill body of the utility model;

[0019] Figure 3 It is a cutaway schematic diagram of the connection block of the utility model;

[0020] Figure 4 It is a partial three-dimensional schematic diagram of the drill rod of the utility model;

[0021] Figure 5 It is another partial isometric perspective schematic diagram of the drill rod of the utility model.

[0022] Among them: 1. drill rod; 2. disassembly and assembly mechanism; 21. connection block; 22. installation cavity; 23. slide plate; 24. spring; 25. first clamping block; 251. first movable groove; 252. first arc groove; 253. first through hole; 26. second clamping block; 261. second movable groove; 262. second arc groove; 263. second through hole; 3. drilling mechanism; 31. drill body; 32. heat dissipation strip. DETAILED DESCRIPTION

[0023] 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.

[0024] The utility model provides the following technical solutions:

[0025] Embodiment 1

[0026] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5A drill bit for engineering geological drilling comprises a drill rod 1, a disassembly and assembly mechanism 2 is movably connected to the left side of the drill rod 1, the disassembly and assembly mechanism 2 comprises a connecting block 21, two installation cavities 22 are arranged inside the connecting block 21 and are distributed in the left and right sides, a slide plate 23 is slidably connected inside the installation cavity 22, a spring 24 is fixedly connected to one side of the slide plate 23, a first clamping block 25 is fixedly connected to the front side of the left slide plate 23, a second clamping block 26 is fixedly connected to the rear side of the right slide plate 23, a connecting groove is arranged on the left side of the drill rod 1, the connecting block 21 is installed inside the connecting groove, the left side of the connecting block 21 extends to the left side of the drill rod 1, a first through hole matched with the first through hole 25 is arranged on the front side of the connecting block 21, a second through hole matched with the second through hole 26 is arranged on the rear side of the connecting block 21, and the left side of the drill rod 1 is opened. A first moving groove 251 adapted to the moving trajectory of the first clamping block 25 is provided, a first arc groove 252 adapted to the rotation trajectory of the first clamping block 25 is provided inside the drill rod 1, the first moving groove 251 is communicated with the first arc groove 252, a first through hole 253 adapted to the first clamping block 25 is provided on the front side of the drill rod 1, the first through hole 253 is communicated with the first arc groove 252, a second moving groove 261 adapted to the moving trajectory of the second clamping block 26 is provided on the left side of the drill rod 1, a second arc groove 262 adapted to the rotation trajectory of the second clamping block 26 is provided inside the drill rod 1, the second moving groove 261 is communicated with the second arc groove 262, a second through hole 263 adapted to the second clamping block 26 is provided on the rear side of the drill rod 1, and the second through hole 263 is communicated with the second arc groove 262.

[0027] Through the above technical solution, the first clamping block 25 and the second clamping block 26 are first extended into the drill rod 1 along the first movable groove 251 and the second movable groove 261 respectively, and then the connecting block 21 is rotated along the first circular arc groove 252 and the second circular arc groove 262 until the first clamping block 25 and the second clamping block 26 are extended into the first through hole 253 and the second through hole 263 under the elastic force of the spring 24, and the drill bit body 31 can be fixed on the drill rod 1. If the drill bit body 31 needs to be removed, the first clamping block 25 and the second clamping block 26 can be compressed into the first circular arc groove 252 and the second circular arc groove 262 with the help of a tool, and then the connecting block 21 is rotated in the opposite direction, and the connecting block 21 is taken out along the first movable groove 251 and the second movable groove 261, so that the drill bit body 31 can be removed when it is deformed due to high temperature.

[0028] Embodiment 2

[0029] See also Figure 1 and Figure 2 On the basis of the first embodiment, it is further obtained that: the left side of the disassembly and assembly mechanism 2 is fixedly connected with a drilling mechanism 3, the drilling mechanism 3 includes a drill body 31, a heat dissipation strip 32 is provided on the drill body 31, the drill body 31 is fixedly connected to the left side of the connecting block 21, and the outer side of the drill body 31 is coated with a thermal resistance layer.

[0030] Through the above technical solution, by opening the heat dissipation strip 32 on the drill body 31, the surface area of ​​the drill body 31 is increased, the efficiency of heat dissipation is improved, and the heat dissipation effect is achieved. The thermal resistance layer has a thermal resistance effect and can reduce the temperature of the drill bit.

[0031] In actual operation, when the device is in use, the first clamping block 25 and the second clamping block 26 are respectively extended into the drill rod 1 along the first movable groove 251 and the second movable groove 261, and then the connecting block 21 is rotated along the first arc groove 252 and the second arc groove 262 until the first clamping block 25 and the second clamping block 26 are extended into the first through hole 253 and the second through hole 263 under the elastic force of the spring 24, so that the drill body 31 can be fixed on the drill rod 1, and the first clamping block 25 and the second clamping block 26 can be compressed into the first arc groove 252 and the second arc groove 262 with the help of a tool, and then the connecting block 21 is rotated in the opposite direction, and the connecting block 21 is taken out along the first movable groove 251 and the second movable groove 261, so that the disassembly of the drill body 31 is completed. By providing the heat dissipation strip 32 on the drill body 31, the surface area of ​​the drill body 31 is increased, the efficiency of heat dissipation is improved, and the heat dissipation effect is achieved. The thermal resistance layer has a thermal resistance effect, which can reduce the temperature of the drill bit.

[0032] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit thereof, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A drill bit for engineering geological drilling, comprising a drill rod (1), characterized in that: A disassembly mechanism (2) is provided on the left side of the drill rod (1), and a drilling mechanism (3) is provided on the left side of the disassembly mechanism (2); The disassembly and assembly mechanism (2) comprises a connection block (21), the connection block (21) has two installation cavities (22) arranged on the left and right sides, a slide plate (23) is slidably connected to the inside of the installation cavity (22), a spring (24) is fixedly connected to one side of the slide plate (23), a first clamping block (25) is fixedly connected to the front side of the left slide plate (23), and a second clamping block (26) is fixedly connected to the rear side of the right slide plate (23).

2. The drill bit for engineering geological drilling according to claim 1, characterized in that: A connection groove is provided on the left side of the drill rod (1), the connection block (21) is installed inside the connection groove, and the left side of the connection block (21) extends to the left side of the drill rod (1).

3. The drill bit for engineering geological drilling according to claim 1, characterized in that: The front side of the connection block (21) is provided with a first through hole matched with the first clamping block (25), and the rear side of the connection block (21) is provided with a second through hole matched with the second clamping block (26).

4. The drill bit for engineering geological drilling according to claim 1, characterized in that: A first moving groove (251) adapted to the moving track of the first clamping block (25) is provided on the left side of the drill rod (1); a first arc groove (252) adapted to the rotation track of the first clamping block (25) is provided inside the drill rod (1); the first moving groove (251) is communicated with the first arc groove (252); a first through hole (253) adapted to the first clamping block (25) is provided on the front side of the drill rod (1); the first through hole (253) is communicated with the first arc groove (252).

5. The drill bit for engineering geological drilling according to claim 1, characterized in that: A second moving groove (261) adapted to the moving track of the second clamping block (26) is provided on the left side of the drill rod (1); a second arc groove (262) adapted to the rotation track of the second clamping block (26) is provided inside the drill rod (1); the second moving groove (261) is communicated with the second arc groove (262); a second through hole (263) adapted to the second clamping block (26) is provided on the rear side of the drill rod (1); the second through hole (263) is communicated with the second arc groove (262).

6. The drill bit for engineering geological drilling according to claim 1, characterized in that: The drilling mechanism (3) comprises a drill body (31), and a heat dissipation strip (32) is provided on the drill body (31).

7. The drill bit for engineering geological drilling according to claim 6, characterized in that: The drill body (31) is fixedly connected to the left side of the connection block (21), and the outer side of the drill body (31) is coated with a thermal resistance layer.

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