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CN-224214119-U - Straight air drill

CN224214119UCN 224214119 UCN224214119 UCN 224214119UCN-224214119-U

Abstract

The utility model discloses a straight air drill bit, which relates to the technical field of air drill bits and comprises a drill rod, wherein the upper end of the drill rod is provided with a drill bit, the inner side of the drill bit is provided with two water injection holes, the outer side of the drill bit is provided with a chip removal groove, the inner side of the drill rod is provided with a circular truncated cone groove, and the center of the inner top side of the circular truncated cone groove is provided with a flow guide groove. According to the utility model, through the drill bit and the chip removal groove, the chip removal groove can improve the powder discharge effect of the drill bit when the drill bit is used for rotary drilling, and the abrasion of the drill bit caused by unsmooth powder discharge when the drill bit is used for rotary drilling is avoided.

Inventors

  • WANG QINGXIA

Assignees

  • 河北力王矿山机械设备有限公司

Dates

Publication Date
20260508
Application Date
20250506

Claims (6)

  1. 1. The horizontal type air drill bit comprises a drill rod (3) and is characterized in that the upper end of the drill rod (3) is provided with a drill bit (2), two water injection holes (4) are drilled in the inner side of the drill bit (2), chip grooves (5) are formed in the outer side face of the drill bit (2), a round table groove (7) is formed in the inner side of the drill rod (3), and a diversion groove (6) is formed in the center of the inner top side of the round table groove (7).
  2. 2. The in-line air drill bit according to claim 1, wherein two ends of the diversion groove (6) are communicated with the water injection hole (4), and an alloy clamping groove (8) is formed in the upper end of the drill bit (2).
  3. 3. The in-line air drill bit according to claim 2, wherein the alloy clamping groove (8) is welded with hard alloy (1), and the diversion groove (6) is communicated with the water injection hole (4).
  4. 4. The straight air drill bit according to claim 1, wherein the drill rod (3) and the drill bit (2) are of an integrated structure, and the circular truncated cone groove (7) is of a circular truncated cone structure.
  5. 5. A straight wind drill bit according to claim 3, characterized in that the hard alloy (1) is arc-shaped, and the cross section of the hard alloy (1) is T-shaped.
  6. 6. The in-line type wind drill bit according to claim 2, wherein the cross section of the alloy clamping groove (8) is T-shaped.

Description

Straight air drill Technical Field The utility model relates to the technical field of air drill bits, in particular to a straight air drill bit. Background The straight drill bit, also called an anchor rod drill bit, is an important tool in drilling operation, and is widely applied in the fields of mines, buildings and the like. It can effectively promote drilling efficiency, ensures construction accuracy. When the existing straight-line type air drill bit is used for vertically drilling, the powder discharging effect of the drill bit is common, so that the drill bit is easy to clamp, and the drill bit is worn. Disclosure of utility model The utility model aims to overcome the existing defects, and provides the straight air drill bit, and the problems in the background technology can be effectively solved through the arranged clamping spring ring and the rubber ring. The horizontal type air drill bit comprises a drill rod, wherein the upper end of the drill rod is provided with a drill bit, two water injection holes are drilled on the inner side of the drill bit, chip grooves are formed in the outer side face of the drill bit, a round table groove is formed in the inner side of the drill rod, and a diversion groove is formed in the center of the inner top side of the round table groove. Furthermore, both ends of the diversion groove are communicated with the water injection hole, and an alloy clamping groove is formed in the upper end of the drill bit. Further, hard alloy is welded in the alloy clamping groove, and the diversion groove is communicated with the water injection hole. Furthermore, the drill rod and the drill bit are of an integrated structure, and the circular truncated cone grooves are of a circular truncated cone structure. Further, the hard alloy is arc-shaped, and the cross section of the hard alloy is T-shaped. Further, the cross section of the alloy clamping groove is T-shaped. Compared with the prior art, the utility model has the beneficial effects that: 1. According to the utility model, through the drill bit and the chip removal groove, the chip removal groove can improve the powder discharge effect of the drill bit when the drill bit is used for rotary drilling, and the abrasion of the drill bit caused by unsmooth powder discharge when the drill bit is used for rotary drilling is avoided. Drawings FIG. 1 is a schematic top view of the present utility model; FIG. 2 is a schematic diagram of a front view structure of the present utility model; FIG. 3 is a schematic view of the bottom view of the drill pipe of the present utility model; Fig. 4 is a schematic diagram of the main cross-sectional structure of fig. 2 according to the present utility model. In the figure, 1, hard alloy, 2, a drill bit, 3, a drill rod, 4, a water injection hole, 5, a chip removal groove, 6, a diversion groove, 7, a round table groove and 8, an alloy clamping groove. Detailed Description The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model. Referring to fig. 1-4, the embodiment provides a technical scheme that a straight air drill bit comprises a drill rod 3, wherein the drill bit 2 is arranged at the upper end of the drill rod 3, two water injection holes 4 are drilled on the inner side of the drill bit 2, chip grooves 5 are formed in the outer side face of the drill bit 2, a circular truncated cone groove 7 is formed in the inner side of the drill rod 3, and a diversion groove 6 is formed in the center of the inner top side of the circular truncated cone groove 7. As shown in fig. 1-4, when the drill bit 2 is connected with the drill rod, the drill rod is directly inserted into the circular truncated cone groove 7, the water delivery hole in the center of the drill rod is aligned with the center of the diversion groove 6, water flows into the water injection hole 4 after entering the diversion groove 6 and flows out of the water injection hole 4 on the drill bit 2, so that the drill bit 2 is cooled during drilling, meanwhile, rock powder worn by the rotation of the drill bit 2 can be flushed out of the drill hole, the drilling efficiency of the drill bit 2 is ensured, the rock powder generated by the rotation of the drill bit 2 can be timely discharged by the chip removal groove 5 during rotation, and the drill bit 2 is ensured not to be worn due to the fact that the rock powder cannot be timely discharged. The two ends of the diversion groove 6 are communicated with the water injection hole 4, the upper end of the drill bit 2 is provided with an alloy clamping groove