CN205713987U - A kind of New Mine mining drill bit - Google Patents

Abstract

The utility model relates to a kind of mining drill bit, particularly relates to a kind of New Mine mining drill bit.The technical problems to be solved in the utility model is to provide the New Mine mining drill bit that a kind of bit change-over is convenient, bit operation scope is wide, operating efficiency is high.In order to solve above-mentioned technical problem, the utility model provides such a New Mine mining drill bit, include erecting device, adjust screw rod, handle of a knife and main brill, erecting device lower end is provided with handle of a knife, handle of a knife lower end is provided with main brill, it is provided with adjustment screw rod in erecting device and handle of a knife, around the Ith, hole II, hole and hole III is uniformly had on handle of a knife, also include tooth bar the Ith, secondary the Ith, gear, tooth bar the IIth, secondary the IIth, tooth bar III and the pair of boring of boring in handle of a knife and bore III, gear top is connected bottom screw rod with adjusting, and is uniformly provided with tooth bar the Ith, tooth bar II and tooth bar III around gear.The utility model has reached the effect that bit change-over is convenient, bit operation scope is wide, operating efficiency is high.

Description

A kind of New Mine mining drill bit

Technical field

The utility model relates to a kind of mining drill bit, particularly relates to a kind of New Mine mining drill bit.

Background technology

Plate for drilling printed drill bit typically all uses hard alloy, because the multiple abrasion to cutter for the copper foil plate of epoxy glass fabric Fast especially.So-called hard alloy is with tungsten-carbide powder as matrix, makees with cobalt powder that binding agent is pressurized, sintering forms.Generally contain Tungsten carbide 94%, contains cobalt 6%.Owing to its hardness is very high, extremely abrasive, there is some strength, be suitable to high-speed cutting.But poor toughness, non- Often crisp, in order to improve the performance of hard alloy, some spies using chemical vapor deposition one layer 5～7 microns on carbonized matrix Hard titanium carbide or titanium nitride so that it is there is higher hardness.Titanium, nitrogen and carbon are injected its matrix by some ion implantation techniques Certain degree of depth, not only increases hardness and intensity and these injection compositions can also be moved to the interior when drill bit is refaced.The use also having Physical method generates one layer of diamond film at drill bit top, greatly improves the hardness and wear resistance of drill bit.Hard alloy Hardness and intensity, not only relevant with the proportioning of cobalt with tungsten carbide, also relevant with the particle of powder.The hard alloy of ultra-fine particles Drill bit, the average-size of its tungsten carbide phase crystal grain is below 1 micron.This drill bit, not only hardness is high but also resistance to compression and bending resistance are strong Degree all improves.In order to cost-effective many drill bits use welding handle structure, drill bit originally is all hard alloy for entirety, after The drillstock in portion have employed stainless steel, and but cost is greatly reduced owing to using different its dynamic concentricitys of material not as good as entirety Carbide drill, especially in terms of minor diameter.

There is bit change-over inconvenience, bit operation narrow range, ineffective shortcoming in current mining drill bit, therefore Need the New Mine mining drill bit that a kind of bit change-over of research and development is convenient, bit operation scope is wide, operating efficiency is high badly.

Utility model content

(1) to solve the technical problem that

There is bit change-over inconvenience, bit operation narrow range, work in order to overcome current mining drill bit in the utility model Making inefficient shortcoming, the technical problems to be solved in the utility model is to provide a kind of bit change-over convenience, bit operation scope Extensively, operating efficiency high New Mine mining drill bit.

(2) technical scheme

In order to solve above-mentioned technical problem, the utility model provides such a New Mine mining drill bit, includes Erecting device, adjusting screw rod, handle of a knife and main brill, erecting device lower end is provided with handle of a knife, and handle of a knife lower end is provided with main brill, erecting device and It is provided with adjustment screw rod in handle of a knife, handle of a knife around uniformly has the Ith, hole II, hole and hole III, in handle of a knife, also include tooth bar the Ith, secondary brill Ith, gear, tooth bar are the IIth, secondary bores the IIth, tooth bar III and secondary brill III, and gear top is connected bottom screw rod with adjusting, uniformly sets around gear Having tooth bar the Ith, tooth bar II and tooth bar III, tooth bar the Ith, tooth bar II and tooth bar III end are connected to secondary the Ith, secondary brill II and the pair of boring and bore III, pair brill I is in hole II, and pair brill II is in hole I, and pair brill III is in hole III, and pair brill the Ith, pair brill II and pair brill III are respectively with hole the Ith, Hole II and hole III coordinate.

Preferably, also include damping washer, in the Ith, hole II, hole and hole III, be provided with damping washer.

Operation principle: be arranged on drill bit on drilling machine, drilling machine drives drill bit to rotate, and drill bit is operated.Work as needs When expanding the diameter of bit bore, workman turns adjustment screw rod clockwise with spanner, adjusts screw rod driven gear and rotates clockwise, So that tooth bar the Ith, tooth bar II and tooth bar III move right relative to gear, promote secondary brill the Ith, secondary brill II and secondary brill III from hole the Ith, Hole II and hole III are stretched out, and expand the diameter of boring, improve operating efficiency, when being adjusted to suitable length, stop turning adjustment Screw rod.Turn adjustment screw rod after hours with spanner counterclockwise so that secondary brill the Ith, secondary brill II and pair are bored III and shunk back in each hole.

Because also including damping washer, in the Ith, hole II, hole and hole III, being provided with damping washer, boring the Ith, secondary brill II and pair in pair When boring III work, damping washer can absorb produced vibrations during work, improves operating efficiency, the service life of extension fixture.

(3) beneficial effect

The utility model has reached the effect that bit change-over is convenient, bit operation scope is wide, operating efficiency is high.

Brief description

Fig. 1 is the first front view structure schematic diagram of the present utility model；

Fig. 2 is the plan structure schematic diagram of the utility model handle of a knife；

Fig. 3 is the second front view structure schematic diagram of the present utility model.

Being labeled as in accompanying drawing: 1-erecting device, 2-adjusts screw rod, 3-handle of a knife, 31-tooth bar I, and 32-is secondary bores I, 33-tooth Wheel, 34-tooth bar II, the secondary brill II of 35-, 36-tooth bar III, the secondary brill III of 37-, 4-hole I, 5-hole II, 6-hole III, the main brill of 7-, 8-damping Packing ring.

Detailed description of the invention

With embodiment, the utility model is further described below in conjunction with the accompanying drawings.

Embodiment 1

A kind of New Mine mining drill bit, as Figure 1-3, includes erecting device and the 1st, adjusts screw rod the 2nd, handle of a knife 3 and lead Boring 7, erecting device 1 lower end is provided with handle of a knife 3, and handle of a knife 3 lower end is provided with main brill 7, is provided with adjustment screw rod in erecting device 1 and handle of a knife 3 2, handle of a knife 3 around uniformly has hole I 4, hole II 5 and hole III 6, also includes tooth bar I 31, secondary brill I 32, gear in handle of a knife 3 the 33rd, Tooth bar II 34, secondary II 35, tooth bar III 36 and the secondary brill III 37 of boring, gear 33 top is connected bottom screw rod 2 with adjusting, around gear 33 Being uniformly provided with tooth bar I 31, tooth bar II 34 and tooth bar III 36, tooth bar I 31, tooth bar II 34 and tooth bar III 36 end are connected to pair Bore I 32, secondary bore II 35 and secondary bore III 37, secondary bore I 32 in hole II 5, secondary bore II 35 in hole I 4, secondary bore III 37 in hole III 6, Secondary brill I 32, secondary brill II 35 and pair are bored III 37 and are coordinated with hole I 4, hole II 5 and hole III 6 respectively.

Also include damping washer 8, in hole I 4, hole II 5 and hole III 6, be provided with damping washer 8.

Operation principle: be arranged on drill bit on drilling machine, drilling machine drives drill bit to rotate, and drill bit is operated.Work as needs When expanding the diameter of bit bore, workman turns adjustment screw rod 2 clockwise with spanner, adjusts screw rod 2 driven gear 33 clockwise Rotate, so that tooth bar I 31, tooth bar II 34 and tooth bar III 36 move right relative to gear 33, promote pair brill I 32, pair to bore II 35 and secondary bore III 37 from hole I 4, hole II 5 and hole III 6 are stretched out, expand the diameter of boring, improve operating efficiency, when being adjusted to close During the length fitted, stop turning adjustment screw rod 2.Turn adjustment screw rod 2 after hours with spanner counterclockwise so that secondary brill I 32, Secondary brill II 35 and secondary brill III 37 shrink back in each hole.

It because also including damping washer 8, in hole I 4, hole II 5 and hole III 6, is provided with damping washer 8, at pair brill I 32, secondary brill II 35 and secondary when boring III 37 work, damping washer 8 can absorb produced vibrations during work, improves operating efficiency, extension fixture Service life.

Embodiment described above only have expressed preferred embodiment of the present utility model, and it describes more concrete and detailed, But therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that, common for this area For technical staff, without departing from the inventive concept of the premise, can also make some deformation, improvement and replacement, these are all Belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.

Claims (2)

1. New Mine mining drill bit, it is characterised in that include erecting device (1), adjust screw rod (2), handle of a knife (3) and Main brill (7), erecting device (1) lower end is provided with handle of a knife (3), and handle of a knife (3) lower end is provided with main brill (7), erecting device (1) and handle of a knife (3) being provided with adjustment screw rod (2) in, handle of a knife (3) is upper around uniformly has hole I (4), hole II (5) and hole III (6), in handle of a knife (3) also Include tooth bar I (31), secondary I (32), gear (33), tooth bar II (34), secondary brill II (35), tooth bar III (36) and the pair of boring bores III (37), gear (33) top is connected with adjusting screw rod (2) bottom, and gear (33) is around uniformly provided with tooth bar I (31), tooth bar II (34) and tooth bar III (36), tooth bar I (31), tooth bar II (34) and tooth bar III (36) end are connected to secondary bore I (32), secondary bore II (35) and secondary bore III (37), secondary bore I (32) hole II (5) in, secondary bore II (35) hole I (4) in, pair brill III (37) is in hole III (6), in, pair is bored I (32), secondary brill II (35) and secondary brill III (37) and is coordinated with hole I (4), hole II (5) and hole III (6) respectively.

2. a kind of New Mine mining drill bit according to claim 1, it is characterised in that also include damping washer (8), It is provided with damping washer (8) in hole I (4), hole II (5) and hole III (6).