CN217080359U - Drill bit for geological exploration - Google Patents

Abstract

The utility model discloses a drill bit for geological exploration, which comprises a drill rod and a drill bit connected with the drill rod, wherein the outer wall of the drill rod is provided with helical blades, a fixed disc is arranged at the joint of the drill rod and the drill bit, a notch is arranged on the fixed disc, and a cutter is arranged at the notch, so that a rock block can be cut by the cutter; the breach top is provided with keeps off native board, and this keeps off native board installs in the breach top through round pin axle with opening and shutting, can prevent that rubble silt from backfilling. The utility model discloses simple structure, reasonable in design, low in manufacturing cost, long service life, alloy tool bit cut the cutting rock piece that the angle can be better through special design, improve and creep into efficiency, when drilling is accomplished with this real novel extraction, the fender board can be automatic closed, prevents that rubble silt from backfilling, can carry out the rubble silt of spiral blade through dialling the soil piece and evacuate.

Description

Drill bit for geological exploration

Technical Field

The utility model relates to a geological exploration technical field especially relates to a drill bit for geological exploration.

Background

Geological exploration is the exploration and detection of geology through various means and methods, wherein an exploration drilling machine is a key machine in geological exploration, a drill bit is a tool for crushing a stratum and forming a well head, and performance parameters of the drill bit directly influence the exploration process. Along with the continuous development of exploration technology, the kind of exploration drill bit is also more and more, and current exploration drill bit is in order to improve the rock breaking force, and the cutting tooth terminal surface of its drill bit often is great, and this makes the cutting power of drill bit low to different extent, creeps into inefficiently, still has the reaming blade of simple to use, when mix with great lump stone or the piece stone is very hard in the soil body, and reaming is very difficult when creeping into.

In addition, the existing exploration drill bit does not have a soil retaining device, and when the exploration drill bit is pulled out after drilling, gravel and sand can be backfilled into a drilled hole to cause the blockage of the hole.

Disclosure of Invention

The utility model provides a drill bit for geological exploration has and creeps into at the bottom of efficient, the fault rate, can prevent that rubble silt from backfilling. The specific scheme is as follows:

the utility model provides a drill bit for prospecting, includes drilling rod and the drill bit of being connected with the drilling rod, is provided with helical blade on the outer wall of drilling rod, its characterized in that: a fixed disc is arranged at the joint of the drill rod and the drill bit, a notch is arranged on the fixed disc, and a cutter is arranged at the notch and can cut the rock block; the breach top is provided with keeps off native board, and this keeps off native board installs in the breach top through round pin axle opening and shutting, can prevent that rubble silt from backfilling.

The cutter comprises a cutter body and an alloy cutter head, wherein the alloy cutter head is welded at the end part of the cutter body.

The cutter body is inclined, the front end of the alloy cutter head is a cutting end face, and the cutting end face is a slope face.

The fixing seats are arranged on one side of the notch of the fixing disc, and the sleeve at one end of the retaining plate is arranged between the two fixing seats and connected through the pin shaft, so that the retaining plate can be installed above the notch of the fixing disc in an opening and closing mode.

Helical blade passes through welded fastening on the body of rod of drilling rod, and in order to make the fixed disk more firm, the fixed disk passes through the bolt and links to each other with helical blade's end.

The drill bit tip sets up the external screw thread, sets up the screw hole with drill bit external screw thread matched with on the drilling rod, and the drill bit passes the centre bore and the drilling rod threaded connection of fixed disk, fixes the lower extreme at the drilling rod with the fixed disk.

The drill bit is an alloy twist drill bit.

And a soil shifting sheet is arranged on one side of the drill rod and is positioned above the helical blade and used for spirally propelling the helical blade and evacuating the conveyed gravel and sediment.

The upper end of the drill rod is provided with a connector.

The utility model has the advantages that: 1. the alloy twist drill bit for crushing the rock and the cutter for cutting the rock are arranged, and when the alloy twist drill bit impacts and crushes the rock to be drilled, the alloy tool bit of the cutter can simultaneously cut the crushed rock. 2. The alloy cutter head can better cut rock through a specially designed cut-in angle, and drilling efficiency is improved. 3. The spiral blade can timely and effectively convey broken stone blocks, and the drilling failure rate is reduced. 4. Be provided with and keep off the native board, accomplish when extracting this reality novelty when drilling, keep off native board and can be automatic closed, prevent that rubble silt from backfilling. 5. The soil shifting sheet is arranged, and the broken stone silt conveyed out by the spiral blades can be evacuated through the soil shifting sheet. 6. The positioning disc is arranged at the lower end of the drill rod and close to the drill bit, so that the drill bit can be well positioned and guided, deviation or oscillation of the drill bit in the drilling process can not occur, and a good impact effect is kept. 7. The utility model discloses simple structure, reasonable in design, low in manufacturing cost, long service life.

Drawings

FIG. 1 is a schematic view of a drill for geological exploration according to the present invention;

FIG. 2 is a schematic view of the connection between the fixing plate and the retaining plate of the present invention;

fig. 3 is a schematic view of the cutting tool of the present invention.

In the figure: the drill rod comprises a drill rod 1, a helical blade 2, a fixed disc 3, a soil retaining plate 4, a pin shaft 5, a cutter 6, a drill 7, a soil shifting sheet 8, a connector 9, a central hole 31, a notch 32, a fixed seat 33, a sleeve 41, a cutter body 61 and an alloy cutter head 62.

Detailed Description

The preferred embodiments of the present invention will be described with reference to the accompanying drawings, which are not intended to limit the scope of the invention, but rather, are intended to cover all modifications and equivalents of the claims.

As shown in fig. 1-3, the utility model discloses a drill bit for geological exploration includes drilling rod 1, and 7 tip of drill bit set up the external screw thread, set up on the drilling rod 1 with 7 external screw thread matched with screw holes of drill bit, and drill bit 7 passes centre bore 31 and the 1 threaded connection of drilling rod of fixed disk 3, fixes fixed disk 3 at the lower extreme of drilling rod 1, and this fixed disk 3 can play good location guide effect to drill bit 7, drill bit 7 be alloy twist drill bit.

The outer wall of the drill rod 1 is provided with a helical blade 2, and the helical blade 2 is welded on the rod body of the drill rod 1. In order to make the fixed disk 3 more stable, the fixed disk 3 may be coupled to the ends of the spiral vanes 2 by bolts.

A notch 32 is arranged on the fixed disk 3, a fixed seat 33 is arranged on one side of the notch 32, a fixed hole for fixing the cutter 6 is arranged on the other side of the notch 32, and the cutter 6 is connected with the fixed disk 3 through a bolt.

Furthermore, the cutter 6 comprises a cutter body 61 and an alloy cutter head 62, the alloy cutter head 62 is welded at the end part of the cutter body 61, and the alloy cutter head 62 is exposed and directly contacts with the rock, so that the direct abrasion of the rock soil to the cutter body 61 is avoided, and the cutter body 61 can be effectively protected.

The cutter body 61 is inclined. The front end of the alloy cutter head 62 is a cutting end surface which is a slope surface.

Retaining plate 4 is through round pin axle 5 and fixed disk 3 swing joint, specifically, retaining plate 4 one end is provided with sleeve 41, and this sleeve 41 is arranged in between two fixing bases 33 of fixed disk 3, and round pin axle 5 passes fixing base 33 and sleeve 41, and is fixed through the split pin, makes retaining plate 4 install in the breach 32 top of fixed disk 3 with opening and shutting, and retaining plate 4 can prevent that rubble silt from backfilling. The cutter 6 is located below the soil guard plate 4.

The upper end of the drill rod 1 is provided with a connector 9, one side of the drill rod 1 is provided with a soil shifting sheet 8, and the soil shifting sheet 8 is positioned above the helical blade 2 and used for evacuating crushed stone silt which is spirally pushed and conveyed out by the helical blade 2.

The working principle is as follows: when carrying out geological exploration's drilling operation, link to each other connector 9 with the output shaft of diesel engine, drive 1 rotations of drilling rod of connector 9 below by the diesel engine, fixed disk 3 rotates along with drilling rod 1, makes cutter 6 carry out the smear metal to the rock, and the drill bit 7 of 1 bottom of drilling rod also rotates along with drilling rod 1, along with the utility model discloses continuous rotation, 1 continuous decline of drilling rod, the helical blade 2 on drilling rod 1 surface can contact geology thereupon, and screw propulsion carries rubble silt etc. and the rubble silt that carries out through helical blade 2 is sparse through dialling soil piece 4, and when drilling was accomplished this reality novel extraction, it is automatic closed to keep off 4 boards, prevents that rubble silt from backfilling.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (9)

1. The utility model provides a drill bit for prospecting, includes drilling rod (1) and drill bit (7) be connected with drilling rod (1), is provided with helical blade (2) on the outer wall of drilling rod (1), its characterized in that: a fixed disc (3) is arranged at the joint of the drill rod (1) and the drill bit (7), a notch (32) is arranged on the fixed disc (3), a cutter (6) is arranged at the notch (32), and the rock can be cut through the cutter (6); and a retaining plate (4) is arranged above the notch (32), and the retaining plate (4) is installed above the notch (32) in an opening and closing manner through a pin shaft (5), so that gravel, sediment and backfilling can be prevented.

2. The drill bit for geological exploration according to claim 1, characterized in that: the cutter (6) comprises a cutter body (61) and an alloy cutter head (62), wherein the alloy cutter head (62) is welded at the end part of the cutter body (61).

3. The drill bit for geological exploration according to claim 2, characterized in that: the cutter body (61) is inclined, the front end of the alloy cutter head (62) is a cutting end surface, and the cutting end surface is a slope surface.

4. The drill bit for geological exploration according to claim 1, characterized in that: one side of the notch (32) of the fixed disk (3) is provided with a fixed seat (33), and a sleeve (41) at one end of the soil retaining plate (4) is arranged between the two fixed seats (33) and connected through a pin shaft (5), so that the soil retaining plate (4) can be installed above the notch (32) of the fixed disk (3) in an opening and closing manner.

5. The drill bit for geological exploration according to claim 1, characterized in that: helical blade (2) pass through welded fastening on the body of rod of drilling rod (1), in order to make fixed disk (3) more firm, fixed disk (3) pass through the bolt and link to each other with helical blade (2) terminal.

6. The drill bit for geological exploration according to claim 1, characterized in that: the end of the drill bit (7) is provided with an external thread, the drill rod (1) is provided with a threaded hole matched with the external thread of the drill bit (7), the drill bit (7) penetrates through a center hole (31) of the fixed disc (3) to be in threaded connection with the drill rod (1), and the fixed disc (3) is fixed at the lower end of the drill rod (1).

7. The drill bit for geological exploration according to claim 6, characterized in that: the drill bit (7) is an alloy twist drill bit.

8. The drill bit for geological exploration according to claim 6, characterized in that: one side of the drill rod (1) is provided with a soil shifting sheet (8), and the soil shifting sheet (8) is positioned above the helical blade (2) and used for evacuating crushed stone and sediment which are spirally pushed and conveyed by the helical blade (2).

9. The drill bit for geological exploration according to claim 1, characterized in that: the upper end of the drill rod (1) is provided with a connector (9).

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