阅读说明：本技术 一种台车钻头结构 (Trolley drill bit structure ) 是由 沈国华 于 2019-11-28 设计创作，主要内容包括：本发明涉及一种台车钻头结构,包括钻体以及翼体,钻体上且位于顶齿之间开设有与安装孔连通的出液孔,且钻体上且位于顶齿之间开设有排渣槽,排渣槽沿钻体的径向延伸设置,出液孔远离安装孔的一端位于排渣槽中,翼体上周向间隔开设有主卸渣槽,主卸渣槽沿钻提的周向延伸设置,且主卸渣槽一端与排渣槽连通设置；翼体上且位于边齿之间开设有辅卸渣槽,辅卸渣槽与主卸渣槽平行开设；钻体上开设有一端与排渣槽连通的引流槽,引流槽向辅卸渣槽方向延伸设置。本发明具有钻体上的中心槽、排渣槽以及引流槽进一步提升转动过程中岩粉的排出效率,进而提高凿岩的作业效率的效果。(The invention relates to a trolley drill bit structure, which comprises a drill body and a wing body, wherein liquid outlet holes communicated with a mounting hole are formed in the drill body and positioned between top teeth, slag discharge grooves are formed in the drill body and positioned between the top teeth, the slag discharge grooves extend along the radial direction of the drill body, one ends of the liquid outlet holes, far away from the mounting hole, are positioned in the slag discharge grooves, main slag discharge grooves are formed in the wing body at intervals in the circumferential direction, the main slag discharge grooves extend along the circumferential direction of a drill lifter, and one ends of the main slag discharge grooves are communicated with the slag discharge grooves; an auxiliary slag discharging groove is formed in the wing body and located between the side teeth, and the auxiliary slag discharging groove and the main slag discharging groove are formed in parallel; the drill body is provided with a drainage groove with one end communicated with the slag discharge groove, and the drainage groove extends towards the auxiliary slag discharge groove. The rock drilling machine has the advantages that the central groove, the slag discharging groove and the drainage groove on the drill body further improve the rock powder discharging efficiency in the rotating process, and further improve the rock drilling operation efficiency.)

1. The utility model provides a platform truck drill bit structure, includes drill body (1) and wing body (11), its characterized in that: one end of the drill body (1) for crushing rock mass is circumferentially provided with top teeth (3) at intervals, one end of the wing body (11) for crushing a rock mass is circumferentially provided with side teeth (14) at intervals, one end of the drill body (1) departing from the top tooth (3) is provided with a mounting hole (2), a liquid outlet hole (10) communicated with the mounting hole (2) is arranged on the drill body (1) and between the top teeth (3), and a slag discharge groove (7) is arranged on the drill body (1) and between the top teeth (3), the slag discharge groove (7) is arranged along the radial extension of the drill body (1), one end of the liquid outlet hole (10) far away from the mounting hole (2) is positioned in the slag discharge groove (7), the wing body (11) is provided with main slag discharging grooves (15) at intervals in the circumferential direction, the main slag discharging grooves (15) extend along the circumferential direction of the drill bit, and one end of the main slag discharging groove (15) is communicated with the slag discharging groove (7).

2. The trolley drill structure of claim 1, wherein: and auxiliary slag discharging grooves (16) are formed in the wing bodies (11) and positioned between the side teeth (14), and the auxiliary slag discharging grooves (16) are formed in parallel with the main slag discharging groove (15).

3. A trolley drill bit structure according to claim 2, characterized in that: the drill body (1) is provided with a drainage groove (8) with one end communicated with the slag discharge groove (7), and the drainage groove (8) extends towards the auxiliary slag discharge groove (16).

4. A trolley drill bit structure according to claim 3, characterized in that: the depth of the drainage groove (8) is gradually reduced from the slag discharging groove (7) to the auxiliary discharging slag groove (16), and the depth of one end of the drainage groove (8) communicated with the slag discharging groove (7) is equal to the depth of the slag discharging groove (7).

5. A trolley drill bit structure according to claim 3, characterized in that: the wing body (11) comprises a first inclined plane (12) and a second inclined plane (13), the side teeth (14) are fixed on the first inclined plane (12), and the drainage grooves (8) penetrate through the first inclined plane (12).

6. A trolley drill bit structure according to claim 1 or 3, characterized in that: the drill bit is provided with a central groove (4) used for communicating with the slag discharge groove (7).

7. The trolley drill structure of claim 6, wherein: the drill is characterized in that internal teeth (5) are arranged in the central groove (4), and the internal teeth (5) are arranged in a mode of deviating from the axis of the drill body (1).

8. The trolley drill structure of claim 6, wherein: and an arc-shaped chamfer surface (6) is arranged on one side of the drill body (1) facing the central groove (4).

Technical Field

The invention relates to the technical field of rock drilling equipment, in particular to a trolley drill bit structure.

Background

Rock drilling is the drilling of a borehole into rock (or ore). Rock drilling techniques are widely used in mines, tunnels and other projects.

The existing Chinese patent No. CN205577851U discloses a rock drilling bit, including boring the body, be equipped with the hole that the opening is decurrent in the boring the body, the boring the body is the wing body shape and distributes, wing body and boring body head terminal surface all inlay and are equipped with the main column tooth, the boring body is inlayed at the interval between its main column tooth and is equipped with the auxiliary column tooth, the height of auxiliary column tooth be less than the height of main column tooth, when the drill bit is drilled, the main column tooth will smash the rock, and kibbling rock will high-speed motion, and the auxiliary column tooth can further smash the rock.

The above prior art solutions have the following drawbacks:

when the drill bit is used for drilling, the drill body rotates around the axis of the drill body and moves along the axis of the drill body to extrude a rock body, wherein the main column body and the auxiliary column body crush the rock body, but rock body fragments after crushing are simultaneously subjected to end face extrusion force of the drill body, so that the condition of compaction of the rock body fragments is caused, the efficiency of the rock body fragments flowing to the wing body and the powder discharge groove is extremely low, and the condition of reduction of the operation efficiency of rock drilling is further caused.

Disclosure of Invention

The invention aims to provide a trolley drill bit structure, wherein drainage grooves in a drill body further improve the rock powder discharge efficiency in the rotation process, and further improve the rock drilling operation efficiency.

The above object of the present invention is achieved by the following technical solutions:

the utility model provides a platform truck drill bit structure, includes the drill body and the wing body, the one end circumference interval that the drill body is used for broken rock mass is provided with a tooth, the one end circumference interval that the wing body is used for broken rock mass sets up the side tooth, the drill body deviates from the one end of a tooth and has seted up the mounting hole, the drill body is gone up and is located and set up the play liquid hole that communicates with the mounting hole between the tooth, just it has seted up the slag discharging groove just to be located between the tooth to bore on the drill body, the slag discharging groove sets up along the radial extension of the drill body, the one end that the mounting hole was kept away from in the liquid hole is located the slag discharging groove, the main slag discharging groove that is equipped with of circumference interval on the wing body, the main slag discharging groove that unloads sets up along the circumference extension of boring and carrying, just the.

Through adopting above-mentioned technical scheme, the drill bit is fixed in power equipment after last through the installation, the drill bit rotates, the crushing effect to the rock mass is realized simultaneously to the apical tooth and the side tooth, get into the slag discharging groove by the broken rock mass of apical drill, let in the high pressure water in going out the liquid hole through the mounting hole, rivers drive broken rock mass and flow, and then make constantly have broken rock mass to get into in the slag discharging groove, avoid broken rock mass to be compacted once more by the tip of the body that bores, promote the discharge efficiency of rock dust, the rock dust is getting into main slag discharging groove through the slag discharging groove simultaneously, further promote the discharged efficiency of rock dust, and then the drilling efficiency is promoted.

The invention is further configured to: and auxiliary slag discharging grooves are formed in the wing bodies and positioned between the side teeth, and the auxiliary slag discharging grooves and the main slag discharging grooves are formed in parallel.

Through adopting above-mentioned technical scheme, the supplementary slag groove that unloads is located between the side tooth and is on a parallel with the main slag groove that unloads, and adjacent main slag groove that unloads is provided with the supplementary slag groove that unloads between the groove, and the rock powder part that the broken rock body of side tooth formed gets into the supplementary slag groove that unloads, promotes the powder discharge volume and then improves drilling efficiency.

The invention is further configured to: the drill body is provided with a drainage groove, one end of the drainage groove is communicated with the slag discharge groove, and the drainage groove extends towards the auxiliary slag discharge groove.

Through adopting above-mentioned technical scheme, when the drill bit rotated, the rock powder flowed in to the slag discharging groove, but because the extending direction of slag discharging groove is different with the direction of rotation of drill bit for some rock powder flows and gets into the drainage groove to the lateral wall of slag discharging groove, and the drainage groove makes the rock powder flow to the supplementary slag discharging groove direction of unloading, and then promotes powder discharging efficiency and rock drilling efficiency. Meanwhile, the impact and the extrusion of rock powder on the side wall of the slag discharge groove are avoided, the stress concentration on the drill body is reduced, the purpose of protecting the drill body is further realized, and the service life of the drill body is prolonged.

The invention is further configured to: the depth of seting up of drainage groove is reduced gradually to the supplementary sediment groove orientation of unloading by the row's sediment groove, the degree of depth and the row's sediment groove degree of depth of drainage groove and row's sediment groove intercommunication one end equal the setting.

Through adopting above-mentioned technical scheme, do not destroy the structure of the wing body originally when seting up the drainage groove, and then guarantee the fixed strength of side tooth on the wing body, and can set up the wing body of maximum diameter on the side tooth, guarantee rock drilling efficiency.

The invention is further configured to: the wing body includes first inclined plane and second inclined plane, the side tooth is fixed with on the first inclined plane, the drainage groove runs through first inclined plane setting.

Through adopting above-mentioned technical scheme, when having seted up the drainage groove for the wing body part is taken by the drainage groove, but has increased the rock dust simultaneously and is unloading the smoothness nature in cinder groove to the assistance through the drainage groove, and the rock dust is moving to between the side tooth through the drainage groove, then is pushed into by the side tooth and assists oblique cinder groove in, promotes the efficiency of arranging the powder, and then guarantees the efficiency of rock drilling.

The invention is further configured to: and a central groove for communicating with the slag discharge groove is formed in the drill bit.

Through adopting above-mentioned technical scheme, in the rock dust that the rock mass formed got into the center slot after the apical tooth is broken, the center slot can hold the rock dust fast, then flows in the sediment groove through the center slot at the rock dust, further reduces the rock dust and receives the extrusion between the drilling body and the rock mass, promotes the smoothness nature of arranging the powder.

The invention is further configured to: and the central groove is internally provided with internal teeth which are arranged by deviating from the axis of the drill body.

Through adopting above-mentioned technical scheme, when the rock powder got into the center slot, the rock powder of internal tooth synchronous stirring center inslot avoided too much rock powder in the caking that the center slot formed for the rock powder can be stable flow in to the scum groove, promotes the stability of arranging the powder.

The invention is further configured to: and an arc-shaped chamfer surface is arranged on one side of the drill body facing the central groove.

Through adopting above-mentioned technical scheme, arc chamfer both ends extend to the slag discharging groove, have increased the intercommunication opening size between central groove and the slag discharging groove to the smooth nature of arc chamfer reduces the rock dust and flows the resistance size that receives in to the slag discharging groove, promotes the smooth and easy nature of arranging the powder.

In conclusion, the beneficial technical effects of the invention are as follows:

the drainage groove is added at the head of the drill body and the improvement of the empty residual surface of the top surface of the trouser body is reduced, so that the water flow has effective fluidity in the slag discharge groove and the drainage groove, the crushed rock powder can be discharged in time, and the effect of quick powder discharge is achieved;

the improved drill bit improves the drilling speed due to fast powder discharge and reduces the power requirement on a drilling machine;

the improved drill bit has good powder discharging effect, reduces the abrasion of the drill body and the stress concentration, thereby prolonging the service life of the drill bit.

Drawings

FIG. 1 is a schematic structural diagram of the first embodiment;

FIG. 2 is a schematic view of the installation empty position and configuration;

FIG. 3 is a schematic structural view of the second embodiment;

FIG. 4 is a schematic structural diagram of the third embodiment.

In the figure, 1, a drill body; 2. mounting holes; 3. a top tooth; 4. a central slot; 5. internal teeth; 6. an arc-shaped chamfer surface; 7. a slag discharge groove; 8. a drainage groove; 9. a tapered section; 10. a liquid outlet hole; 11. a wing body; 12. a first inclined plane; 13. a second inclined plane; 14. a side tooth; 15. a main slag discharging groove; 16. and (4) auxiliary slag discharging grooves.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.