Novel anchor cable and anchor rod drill bit
Technical Field
The utility model relates to a probing field, concretely relates to novel anchor rope stock drill bit.
Background
The anchor rod is the most basic component of roadway support in the coal mine of the present generation, and the anchor rod binds the surrounding rocks of the roadway together to enable the surrounding rocks to support the anchor rod per se. Railway tunnels and coal mine tunnels are usually supported by anchor rods, so that the anchor rod drill bit with high efficiency, high speed and stable performance plays an important role, and the quality of the drill bit directly relates to the drilling efficiency and the drilling cost. In order to improve the working efficiency and ensure the drilling quality, the requirements on the anchor rod drill bit are higher and higher.
The utility model discloses a novel diamond roof bolt drill bit of chinese utility model with grant bulletin number CN202970490U, including the threaded rod, the bit body that links to each other with the threaded rod, the threaded rod is provided with circular water inlet, there are left wing seat and right wing seat on the bit body, radial symmetric distribution and opposite direction on the bit body of left wing seat and right wing seat, be provided with circular shape last delivery port and two side outlet between left wing seat and the right wing seat, the water inlet communicates with each other with last delivery port, side outlet, the compound piece of diamond has been welded respectively on left wing seat and the right wing seat, the compound piece of diamond is the cambered surface shape, be equipped with two radial symmetric distribution and opposite direction's row's cinder groove on the bit body, it is the oblique shape to arrange the cinder groove.
However, in practical use, the rock fragments on the inner wall of the drill hole seriously abrade the drill bit base body of the rock drilling rig, and meanwhile, the drill bit base body is impacted by the debris removal process, so that the drill bit is not smooth when exiting the drill hole, the phenomenon that the drill bit is clamped or even broken in the drill hole easily occurs, the subsequent drilling work is influenced, the construction period is prolonged, and certain economic loss is further brought.
SUMMERY OF THE UTILITY MODEL
To foretell not enough, the utility model provides a novel anchor rope stock drill bit.
The utility model provides a technical scheme that its technical problem adopted is: the novel anchor cable anchor rod drill bit comprises an outer drill bit, an inner drill bit and a driven drill ring, wherein the outer drill bit comprises an outer drill rod and a drill bit base body, the drill bit base body is arranged in a hollow mode, the outer drill rod is positioned inside the drill bit base body, four connecting rods are arranged between the outer drill rod and the drill bit base body, two ends of each connecting rod are fixedly connected with the outer drill rod and the drill bit base body respectively, a gear is rotatably connected onto each connecting rod, a limiting groove, a rotating groove and a drill face groove are sequentially arranged inside the drill bit base body from top to bottom, the inner drill bit comprises an inner drill rod and a drill face base body, the drill face base body is fixedly connected to the tail end of the inner drill rod, the inner drill rod is rotatably connected into the outer drill rod, the drill face base body is rotatably connected into the drill face groove, lower meshing teeth are arranged on the upper surface of the drill face base body, the driven drill ring comprises a drill, the driven drill collar is sleeved with the outer drill rod, the rotating column is rotatably connected in the rotating groove, the limiting ring is rotatably connected in the limiting groove, the lower surface of the limiting ring is provided with an upper meshing tooth, and the upper meshing tooth and the lower meshing tooth are both meshed with the gear.
As optimization, the circumferential direction of the drill bit base body is provided with a plurality of cutting blades which are uniformly distributed, and each cutting blade is provided with a plurality of diamond composite sheets.
Preferably, a plurality of drilling teeth which are uniformly distributed are arranged on the lower side of the drill face base body, and anti-blocking spray heads are arranged between the two drilling teeth.
Preferably, a water passing channel is arranged in the center of the inner drill rod, and each anti-blocking spray head is communicated with the water passing channel.
As optimization, a plurality of reverse blades which are uniformly distributed are arranged in the circumferential direction of the drill collar base body.
Preferably, the bottom surface of the drill bit base body is provided with a plurality of arc-shaped water drainage grooves, and the arc-shaped water drainage grooves are designed to better enable water sprayed out of the anti-blocking spray head to be discharged, so that small vortexes are formed, and the drill bit base body is cleaned.
As optimization, the limiting groove, the rotating groove and the drilling surface groove are internally provided with oil seal rings, so that the sealing performance of the joint is better.
As optimization, the rotating speed of the inner drill rod is smaller than that of the outer drill rod, so that the service life of the driven drill collar is longer, and rock fragments in a drill hole can be discharged better.
Preferably, lubricating oil is arranged between the inner drill rod and the outer drill rod, so that the rotation is smoother.
The utility model has the advantages that: the utility model provides a novel anchor rope stock drill bit, divide into interior drill bit with traditional stock drill bit, outer drill bit and driven drill collar triplex, interior drilling rod rotates and drives the drill face base member and rotate, thereby drive gear revolve, and then make drill collar base member antiport, outer drilling rod rotates and drives drill bit base member and the whole rotation of inner structure, the rock piece that has alleviateed the drilling inner wall is to the wearing and tearing of drill bit base member, also more smooth and easy when making the drill bit withdraw from drilling, be difficult for being blocked, avoided the drill bit disconnected in drilling, and can promote drilling efficiency, accelerate the drilling process, bring certain economic benefits.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a front cross-sectional view of the present invention;
FIG. 3 is a schematic view of an outer drill bit according to the present invention;
FIG. 4 is a schematic top cross-sectional view of an outer drill bit according to the present invention;
FIG. 5 is a schematic view of the driven drill collar of the present invention;
fig. 6 is a schematic view of the inner drill of the present invention.
The drilling tool comprises a drilling ring base body, a drilling bit base body, a cutting blade, 104, a diamond composite sheet, 105, a connecting rod, 106, a gear, 107, a limiting groove, 108, a rotating groove, 109, a drilling surface groove, 201, a drilling ring base body, 202, a rotating column, 203, a limiting ring, 204, a reverse blade, 205, an upper meshing tooth, 301, a drilling surface base body, 302, an inner drilling rod, 303, a water passing channel, 304, a lower meshing tooth, 305, an anti-blocking spray head, 306, a drilling tooth, 307 and an arc-shaped water draining groove.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
The novel anchor cable anchor rod drill bit shown in fig. 1-6 comprises an outer drill bit 1, an inner drill bit 3 and a driven drill collar 2, wherein the outer drill bit 1 comprises an outer drill rod 4 and a drill bit base 102, the drill bit base 102 is hollow, the outer drill rod 4 is located inside the drill bit base 102, four connecting rods 105 are arranged between the outer drill rod 4 and the drill bit base 102, two ends of each connecting rod 105 are fixedly connected with the outer drill rod 4 and the drill bit base 102 respectively, a gear 106 is rotatably connected onto each connecting rod 105, a limiting groove 107, a rotating groove 108 and a drill face groove 109 are sequentially arranged inside the drill bit base 102 from top to bottom, the inner drill bit 3 comprises an inner drill rod 302 and a drill face base 301, the drill face base 301 is fixedly connected to the tail end of the inner drill rod 302, the inner drill rod 302 is rotatably connected inside the outer drill rod 4, the drill face base 301 is rotatably connected inside the drill face groove 109, the upper surface of the drill face base body 301 is provided with lower meshing teeth 304, the driven drill collar 2 comprises a drill collar base body 201 and a limiting ring 203, a rotating column 202 is fixedly connected between the drill collar base body 201 and the limiting ring 203, the driven drill collar 2 is sleeved with an outer drill rod 4, the rotating column 202 is rotatably connected in a rotating groove 108, the limiting ring 203 is rotatably connected in a limiting groove 107, the lower surface of the limiting ring 203 is provided with upper meshing teeth 205, and the upper meshing teeth 205 and the lower meshing teeth 304 are both meshed with a gear 106.
In this embodiment, a plurality of uniformly distributed cutting blades 103 are arranged in the circumferential direction of the drill base 102, and a plurality of diamond compacts 104 are arranged on each cutting blade 103.
In this embodiment, a plurality of drilling teeth 306 are uniformly distributed on the lower side of the bit surface base body 301, and an anti-blocking spray head 305 is arranged between the two drilling teeth 306.
In this embodiment, a water passage 303 is provided in the center of the inner drill rod 302, and each anti-blocking nozzle 305 is communicated with the water passage 303.
In the present embodiment, a plurality of uniformly distributed reverse blades 204 are arranged in the circumferential direction of the drill collar base body 201.
In this embodiment, a plurality of arc-shaped drainage grooves 307 are formed on the bottom surface of the bit surface base 301, and the arc-shaped drainage grooves 307 are designed to better drain water sprayed from the anti-blocking nozzle 305, so as to form a small vortex and clean the bit base 102.
In this embodiment, oil seal rings are disposed in the limiting groove 107, the rotating groove 108 and the drill face groove 109, so that the sealing performance of the joint is better.
In this embodiment, the rotation speed of the inner drill rod 302 is less than that of the outer drill rod 4, so that the service life of the driven drill collar 2 is longer, and rock debris in a drill hole can be discharged better.
In this embodiment, a lubricating oil is provided between the inner drill rod 302 and the outer drill rod 4, so that the rotation is smoother.
The working principle is as follows: the utility model provides a novel anchor rope stock drill bit, interior drilling rod 302 rotates and drives drill face base member 301 and rotates, because be provided with down meshing tooth 304 on the drill face base member 301, thereby it rotates to drive gear 106, because be provided with meshing tooth 205 on the ring gear base member, and then make drill collar base member 201 antiport, outer drilling rod 4 rotates and drives drill bit base member 102 and the whole rotation of inner structure, water injection in water channel 303, water is from preventing stifled shower nozzle 305 blowout, under the effect of arc water drainage tank 307, form little swirl of formation, can clean drill bit base member 102.
The above embodiments are only specific cases of the present invention, and the protection scope of the present invention includes but is not limited to the forms and styles of the above embodiments, and any suitable changes or modifications made thereto by those skilled in the art according to the claims of the present invention shall fall within the protection scope of the present invention.