CN218092910U - Punching tooth drill bit - Google Patents

Abstract

The utility model discloses a die-cut tooth bore bit, including bore bit steel pole, the fixed outer platform that cuts that is provided with in top of bore bit steel pole, the fixed interior grinding pad platform that is provided with in middle part on the outer platform top that cuts, the fixed spherical tooth in three that is provided with in top of interior grinding pad platform, six evenly distributed's assembly slot is offered to the periphery of cutting the platform outward, and the equal block in inside of six assembly slots is connected with outer spherical tooth subassembly, the utility model relates to a die-cut tooth bore bit, this die-cut tooth bore bit is optimized to the shape and the overall arrangement of punching tooth, adopts inside and outside two-layer spherical tooth to carry out die-cut, is equipped with punching cutting sword and die-cut slot between two-layer impact sword, and is cascaded distribution to can improve the work efficiency of die-cut tooth bore bit, be difficult by wearing and tearing, long service life, outer spherical tooth subassembly adopts the mode of bolt-up to lock fixedly, can change according to the degree pertinence of wearing and tearing, thereby need whole drawback of changing after avoiding outer spherical tooth wearing and tearing, resources are saved.

Description

Punching tooth drill bit

Technical Field

The utility model relates to a strike and attack rock drill technical field, specifically be a die-cut tooth bore bit.

Background

The drill bit body plays the role of punching, tapping and drilling before impacting the core parts of the rock drilling machine, and is usually made of high-quality imported steel, and a tool bit is made of special alloy through a special processing and welding process. The common punching tooth drill bit on the current market generally has the following defects:

1. the punching efficiency is relatively low, the section of the punching tooth is easily abraded and expanded in the using process, and the service life is short;

2. because the contact area of the outer spherical teeth is large, when the outer spherical teeth are worn, the outer spherical teeth cannot be replaced in a targeted manner, and the punching tooth bit is required to be integrally replaced at the moment, so that the waste of resources is easily caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a die-cut tooth bore bit to current die-cut bore bit life end of proposing in solving above-mentioned background art, and the outer ball tooth of unable pertinence change wearing and tearing causes the problem of wasting of resources easily.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a die-cut tooth bore bit, includes bore bit steel pole, the fixed outer platform that cuts that is provided with in top of bore bit steel pole, the fixed interior grinding pad platform that is provided with in middle part on outer cutting platform top, the fixed spherical tooth in three that is provided with in top of interior grinding pad platform, six evenly distributed's assembly slot, six are offered to the periphery of outer cutting platform the equal block in inside of assembly slot is connected with outer spherical tooth subassembly, adjacent two the die-cut sword has all been seted up between the assembly slot, and this die-cut tooth bore bit has optimized die-cut tooth's shape and overall arrangement, adopts inside and outside two-layer spherical tooth to die-cut, is equipped with die-cut sword and die-cut slot between two-layer impact sword, and is cascaded distribution to can improve the work efficiency of die-cut tooth bore bit, difficult by wearing and tearing, long service life.

Preferably, adjacent two all seted up die-cut slot between the interior spherical tooth, be equipped with die-cut sword and die-cut slot between two-layer impact sword, and be cascaded distribution to can improve the work efficiency of die-cut tooth bore bit, difficult quilt wearing and tearing, long service life.

Preferably, three the middle part of die-cut slot all is equipped with the ash discharge through-hole, the ash discharge operation of being convenient for.

Preferably, six outer spherical tooth components all include spherical tooth head and cartridge pole, the bottom mounting of spherical tooth head be provided with assembly slot assorted cartridge pole, the fastening screw has been seted up on the cartridge pole.

Preferably, the lateral wall of the outer cutting table is provided with six fastening locking holes corresponding to the assembling slots in a one-to-one manner, and the six fastening locking holes are internally provided with fastening bolts, the fastening bolts are correspondingly arranged with the fastening screw holes and are locked and fixed in a bolt fastening manner, and the fastening bolts can be replaced according to the wear degree pertinence, so that the defect that the drill bit needs to be integrally replaced after the outer spherical teeth are worn is overcome.

Preferably, the central angle between the three inner spherical teeth is 120 degrees, the shape and the layout of the punching teeth are optimized, the inner spherical teeth and the outer spherical teeth are adopted for punching, the punching blades and the punching grooves are arranged between the two layers of the punching blades and distributed in a step mode, and therefore the working efficiency of the punching tooth drill bit can be improved.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the punching tooth drill bit optimizes the shape and the layout of the punching teeth, adopts the inner layer of spherical teeth and the outer layer of spherical teeth for punching, and is provided with the punching blades and the punching grooves between the two layers of the punching blades which are distributed in a step shape, thereby improving the working efficiency of the punching tooth drill bit, being not easy to be worn and having long service life;

2. the outer spherical tooth assembly is locked and fixed in a bolt fastening mode and can be changed according to the degree of abrasion, so that the defect that the drill bit needs to be integrally changed after the outer spherical tooth is abraded is overcome, and resources are saved.

Drawings

FIG. 1 is a schematic structural view of a tooth punching bit of the present invention;

FIG. 2 is a top cross-sectional view of the die-cut tooth bit of the present invention;

FIG. 3 is a schematic structural view of the outer spherical tooth assembly of the present invention;

FIG. 4 is a schematic view of a part of the structure of the drill bit steel rod of the present invention;

fig. 5 is an enlarged view of a part a of the present invention.

In the figure: 1. a bit steel shank; 2. an outer cutting table; 3. an outer spherical tooth assembly; 31. a spherical tooth head; 32. inserting a rod; 33. fastening screw holes; 4. inner spherical teeth; 5. an inner wear pad table; 6. punching and cutting edges; 7. fastening the lock hole; 8. a dust discharge through hole; 9. assembling a slot; 10. punching a groove; 11. and (5) fastening the bolt.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1-5, the utility model provides a punching tooth drill bit, which comprises a drill bit steel rod 1, an outer cutting table 2 is fixedly arranged at the top end of the drill bit steel rod 1, an inner grinding pad table 5 is fixedly arranged at the middle part of the top end of the outer cutting table 2, three inner spherical teeth 4 are fixedly arranged at the top end of the inner grinding pad table 5, six assembling slots 9 which are uniformly distributed are arranged at the periphery of the outer cutting table 2, the inner parts of the six assembling slots 9 are all connected with an outer spherical tooth component 3 in a clamping way, punching blades 6 are arranged between two adjacent assembling slots 9, punching grooves 10 are arranged between two adjacent inner spherical teeth 4, ash discharge through holes 8 are arranged at the middle parts of the three punching grooves 10, six outer spherical tooth subassemblies 3 all include spherical tooth head 31 and cartridge pole 32, the bottom mounting of spherical tooth head 31 be provided with assembly slot 9 assorted cartridge pole 32, fastening screw 33 has been seted up on cartridge pole 32, six fastening lockholes 7 with assembly slot 9 one-to-one have been seted up to the lateral wall of outer cutting platform 2, the inside of six fastening lockholes 7 all is equipped with fastening bolt 11, fastening bolt 11 corresponds the setting with fastening screw 33, the central angle between the three interior spherical tooth 4 is 120, outer spherical tooth subassembly 3 adopts the mode of bolt-up to lock fixedly, can change according to the pertinence of degree of wearing and tearing, thereby need the drawback of whole change bore bit after avoiding outer spherical tooth wearing and tearing, and resources are saved.

When the embodiment of the application is used: according to the assembly method of traditional die-cut tooth bore bit, install die-cut tooth bore bit at the end of attacking that strikes the rock drill, this die-cut tooth bore bit has optimized shape and overall arrangement to the die-cut tooth, adopt inside and outside two-layer spherical tooth to carry out die-cut, be equipped with die-cut sword 6 and die-cut slot 10 between two-layer impact sword, and be cascaded distribution, thereby can improve the work efficiency of die-cut tooth bore bit, be difficult for by wearing and tearing, long service life, outer spherical tooth subassembly 3 adopts the mode of bolt-up to lock fixedly, can change according to the degree pertinence of wearing and tearing, thereby need the drawback of whole change bore bit after avoiding outer spherical tooth wearing and tearing, resources are saved.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (6)

1. The utility model provides a die-cut tooth bore bit, includes bore bit steel pole (1), its characterized in that: the drill bit steel pole (1) top is fixed to be provided with outer cutting platform (2), the fixed interior grinding pad platform (5) that is provided with in middle part on outer cutting platform (2) top, the fixed interior spherical tooth (4) that are provided with in top of interior grinding pad platform (5), six evenly distributed's assembly slot (9), six are seted up to the periphery of outer cutting platform (2) the equal block in inside of assembly slot (9) is connected with outer spherical tooth subassembly (3), adjacent two dash cutting edge (6) have all been seted up between assembly slot (9).

2. A die-cut tooth bit according to claim 1, wherein: and a punching groove (10) is formed between every two adjacent inner spherical teeth (4).

3. A die-cut tooth bit according to claim 2, wherein: the middle parts of the three punching grooves (10) are provided with ash discharge through holes (8).

4. A piercing cutter bit according to claim 1, wherein: six outer spherical tooth subassembly (3) all include spherical tooth head (31) and cartridge pole (32), the bottom mounting of spherical tooth head (31) is provided with and assembles slot (9) assorted cartridge pole (32), fastening screw (33) have been seted up on cartridge pole (32).

5. A die-cut bit according to claim 4, wherein: six fastening lockholes (7) corresponding to the assembly slots (9) one by one are formed in the outer side wall of the outer cutting table (2), the six fastening lockholes (7) are all provided with fastening bolts (11), and the fastening bolts (11) correspond to the fastening screw holes (33).

6. A piercing cutter bit according to claim 1, wherein: the central angle between the three inner spherical teeth (4) is 120 degrees.

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