CN219528929U

CN219528929U - Button drill bit with protective structure

Info

Publication number: CN219528929U
Application number: CN202320624807.7U
Authority: CN
Inventors: 赵士相
Original assignee: Shandong Xiangshan Drilling Tool Co ltd
Current assignee: Shandong Xiangshan Drilling Tool Co ltd
Priority date: 2023-03-27
Filing date: 2023-03-27
Publication date: 2023-08-15
Anticipated expiration: 2033-03-27

Abstract

The utility model belongs to the technical field of button bit equipment, in particular to a button bit with a protection structure, which comprises a working end, wherein a cone-tip rotor is arranged at the upper end of the working end, a main button is arranged at the upper end of the working end, an outer button is arranged at the upper end of the working end, a slag discharging groove is arranged at the rear end of the working end, a supporting ring is arranged outside the working end, a cross supporting frame is arranged inside the supporting ring, a movable ring is arranged inside the supporting ring, and a connecting ring is arranged at the bottom end of the supporting ring; according to the utility model, the protection support ring is additionally arranged at the rear end of the drill bit, the cross support rod is arranged between the drill bit and the support ring, the drill bit rotates in the support ring during working, when encountering hard rock, certain shaking and deflection are generated, the support ring has certain auxiliary stability on the drill bit, the influence of the deflection on the drill bit is reduced, and the plane generated by drilling is more stable.

Description

Button drill bit with protective structure

Technical Field

The utility model relates to the technical field of drill bit equipment, in particular to a button bit with a protection structure.

Background

Rock drilling is a process of drilling blastholes or blastholes in rock ore with a rock drilling machine. The mechanical rock drilling method is mainly used, and the impact type, rotary type and rotary impact type are divided according to the action mode of a drilling tool. When drilling rock, a drill bit suitable for a rock stratum structure is required to be installed at the working end of a rock drilling machine for drilling, the drill bit adopts high-quality imported steel, and the tool bit is manufactured by adopting special alloy and special processing and welding processes. The existing drill bit is mainly divided into a straight line, a cross shape and a spherical tooth shape, wherein the straight line is suitable for drilling rock strata with low hardness by a light rock drill, the grinding is convenient, the cross shape is suitable for drilling crack rock strata and rock strata with high abrasiveness under the condition of a rock drill with large impact work, the radial abrasion resistance is high, the applicability of the spherical tooth shape is higher than that of a sheet-shaped insert drill bit under the condition of a rock drill with large impact work, the drilling speed and service life are high, and the drilled hole is round.

The prior art has the following problems:

1. when the button bit works, the button bit is easily influenced by hard rock, so that the button bit is damaged;

2. debris generated during drilling is liable to cause clogging of the rear end of the drill bit.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a button bit with a protective structure, which solves the problem that the rear end is blocked due to damage caused by the influence of hard rock and generated scraps existing at present.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a button drill bit with protective structure, includes the work end, the upper end of work end is provided with the awl point rotor, the upper end of work end is provided with the main button tooth, the upper end of work end is provided with outer button tooth, the rear end of work end is provided with the row's slag groove, the outside of work end is provided with the support ring, the inside of support ring is provided with the cross bracing frame, the inside of support ring is provided with the expansion ring, the bottom of support ring is provided with the go-between, the inside of go-between is provided with the commentaries on classics pearl, the inside of go-between is provided with the dog, the bottom of work end is provided with the bull stick, the outside of bull stick is provided with grinding tooth, the rear end of grinding tooth is provided with the reinforcement layer.

As a preferable technical scheme of the utility model, the main spherical teeth are fixedly arranged outside the upper end of the working end and are fixedly provided with a plurality of outer spherical teeth, and the size of the outer spherical teeth is larger than that of the main spherical teeth.

As a preferable technical scheme of the utility model, a plurality of slag discharging grooves are formed outside the working end, and the bottom ends of the slag discharging grooves are connected to the upper ends of the grinding teeth.

As a preferable technical scheme of the utility model, a plurality of cross supporting frames are fixedly arranged in the supporting ring, and the cross supporting frames are annularly distributed in the supporting ring.

As a preferable technical scheme of the utility model, the upper end of the rotating rod is movably arranged in the movable ring, and the grinding teeth are obliquely arranged outside the bottom end of the rotating rod.

As a preferable technical scheme of the utility model, the lower end of the rotating rod is in an inverted conical shape, and a plurality of rotating beads are movably arranged in the movable ring.

As a preferred embodiment of the present utility model, there is a tight rotational friction between the grinding teeth.

Compared with the prior art, the utility model provides the button bit with the protection structure, which has the following beneficial effects:

1. according to the button bit with the protection structure, the protection support ring is additionally arranged at the rear end of the bit, the cross support rod is arranged between the bit and the support ring, the bit rotates in the support ring during operation, when encountering hard rock, certain shaking and deflection can be generated, the support ring plays a role in assisting and keeping the bit stable, the influence of the deflection on the bit is reduced, and the plane generated by drilling is stable.

2. This button drill bit with protective structure establishes the grinder through adding at the drill bit rear end, sets up the hourglass stone groove in the outside of drill bit, and the rubble of production is carried the rear end when rotating, and the inside of grinder grinds the rubble, reduces the influence that the rubble produced the drill bit during operation, and the inside of grinder carries out complete smashing through grinding inter-tooth rubble, collects the rubble of smashing and can carry out effectual utilization, makes the work more stable.

Drawings

FIG. 1 is a plan view of a button bit with a protective structure according to the present utility model;

FIG. 2 is a cross-sectional view of a button bit with a protective structure according to the present utility model;

FIG. 3 is a perspective view of a button bit attachment ring with a protective structure according to the present utility model;

FIG. 4 is a cross-sectional view of a button bit grinding tooth with a protective structure according to the present utility model.

In the figure: 1. a working end; 2. a cone tip rotor; 3. a main button; 4. an outer button; 5. a slag discharge groove; 6. a support ring; 7. a cross support frame; 8. a movable ring; 9. a connecting ring; 10. rotating the beads; 11. a stop block; 12. a rotating rod; 13. grinding the teeth; 14. and a reinforcing layer.

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 to 4, in the present embodiment: the utility model provides a button bit with protective structure, including work end 1, the upper end of work end 1 is provided with awl point rotor 2, the upper end of work end 1 is provided with main button tooth 3, the upper end of work end 1 is provided with outer button tooth 4, increase the chisel operation to rock, the rear end of work end 1 is provided with row's slag groove 5, the outside of work end 1 is provided with support ring 6, the inside of support ring 6 is provided with cross bracing frame 7, increase the guard action to the front end, the inside of support ring 6 is provided with expansion ring 8, the bottom of support ring 6 is provided with go-between 9, the inside of go-between 9 is provided with rotating ball 10, the inside of go-between 9 is provided with dog 11, increase the protection and the operation to the device, the bottom of work end 1 is provided with bull stick 12, the outside of bull stick 12 is provided with grinding tooth 13, the rear end of grinding tooth 13 is provided with reinforcement layer 14, increase the effect of grinding.

In this embodiment, main button 3 fixed mounting is outside and fixed mounting has a plurality ofly in the upper end of work end 1, the size of outer button 4 is greater than main button 3, increase the chisel to the rock, a plurality of slag discharge grooves 5 have been seted up to the outside of work end 1, the bottom of slag discharge groove 5 is connected in the upper end of grinding tooth 13, be convenient for transmit the slag of front end, the inside fixed mounting of support ring 6 has a plurality of cross bracing frame 7, cross bracing frame 7 annular distributes in the inside of support ring 6, increase the support to the device, the upper end movable mounting of bull stick 12 is in the inside of expansion ring 8, grinding tooth 13 is outside in the bottom of bull stick 12 for slope installation, the lower extreme shape of bull stick 12 is the obconical, the inside movable mounting of expansion ring 8 has a plurality of rotating beads 10, there is inseparable rotation friction between the grinding tooth 13, linkage operation between the reinforcing means.

The working principle and the using flow of the utility model are as follows: the operator installs the bore bit in the front end of rock drill at first, and when starting the work, the bore bit rotates, and the conical tip rotor 2 of front end contacts rock at first, and the bore bit carries out high-speed rotation, drives main button tooth 3 and outer button tooth 4 and grinds the rock, and the rubble is transported the rear end through row's slag groove 5 when the chisel hits, and the bull stick 12 mirror of rear end rotates, drives both sides and grinds tooth 13 and grinds the rubble, and the powder after smashing can collect and utilize, and during the chisel hits, the bore bit receives great resistance, takes place the skew easily and rocks, and outside cross bracing frame 7 and supporting ring 6 carry out stable effect to the bore bit.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A button drill bit with protective structure, its characterized in that: including work end (1), the upper end of work end (1) is provided with awl point rotor (2), the upper end of work end (1) is provided with main button tooth (3), the upper end of work end (1) is provided with outer button tooth (4), the rear end of work end (1) is provided with row's slag groove (5), the outside of work end (1) is provided with supporting ring (6), the inside of supporting ring (6) is provided with cross bracing frame (7), the inside of supporting ring (6) is provided with expansion ring (8), the bottom of supporting ring (6) is provided with go-between (9), the inside of go-between (9) is provided with rotating bead (10), the inside of go-between (9) is provided with dog (11), the bottom of work end (1) is provided with bull stick (12), the outside of bull stick (12) is provided with grinding tooth (13), the rear end of grinding tooth (13) is provided with enhancement layer (14).

2. The button bit with protective structure according to claim 1, wherein: the main ball tooth (3) is fixedly arranged outside the upper end of the working end (1) and is fixedly provided with a plurality of outer ball teeth (4), and the size of the outer ball tooth is larger than that of the main ball tooth (3).

3. The button bit with protective structure according to claim 1, wherein: the outside of working end (1) has seted up a plurality of slag discharging groove (5), the bottom of slag discharging groove (5) is connected in the upper end of grinding tooth (13).

4. The button bit with protective structure according to claim 1, wherein: the inside of support ring (6) is fixed mounting has a plurality of cross bracing frames (7), cross bracing frames (7) annular distributes in the inside of support ring (6).

5. The button bit with protective structure according to claim 1, wherein: the upper end of the rotating rod (12) is movably arranged in the movable ring (8), and the grinding teeth (13) are obliquely arranged outside the bottom end of the rotating rod (12).

6. The button bit with protective structure according to claim 1, wherein: the lower end of the rotating rod (12) is in an inverted conical shape, and a plurality of rotating beads (10) are movably arranged in the movable ring (8).

7. The button bit with protective structure according to claim 1, wherein: there is a tight rotational friction between the grinding teeth (13).