CN114776225A - A kind of anti-slide pile drilling rig equipment and drill bit - Google Patents

Abstract

The application discloses anti-slide pile drilling machine equipment and a drill bit, wherein the drill bit comprises a square frame, a Lelo triangular base body, a guide Lelo triangular block, a cutting tooth assembly and a scraper; the guiding Lelo triangular block is arranged in the square frame and used for being connected with a transmission mechanism, the guiding Lelo triangular block is fixedly connected with the Lelo triangular base body, the pick assembly is convexly arranged on the end face, far away from the guiding Lelo triangular block, of the Lelo triangular base body, and the scraper is arranged on the peripheral portion of the Lelo triangular base body and used for scraping a pile hole. The drill bit can rapidly excavate square holes in the geological of the rock-soil layer, and is high in tunneling efficiency and long in service life.

Description

A kind of anti-slide pile drilling rig equipment and drill bit

technical field

The present application relates to the field of pile construction machinery, in particular to an anti-sliding pile drilling rig equipment and a drill bit.

Background technique

Slope stability construction is often required for infrastructure construction in hilly areas. By driving anti-sliding piles into the slope area, the flexural and shear resistance of rock and soil layers can be improved to ensure slope stability. Anti-sliding piles are suitable for For shallow and medium-deep landslides, it can effectively prevent the slope from sliding. In order to improve the bearing capacity of the anti-sliding piles, square piles are usually used instead of round piles. Common construction methods include the combination of drilling rigs and manual digging, and direct excavation with milling cutters. The former excavation is slow and inefficient. The construction cost is high, and at the same time, there is a great risk of labor. The torque and impact carried by the latter milling cutter are too large, resulting in slow tunneling efficiency and rapid damage to the milling cutter. Therefore, it is necessary to develop a drill bit that can quickly excavate square holes in geology.

SUMMARY OF THE INVENTION

The purpose of the present application is to provide a drill bit, which can quickly excavate square holes in the geology of rock and soil layers, has high excavation efficiency, and has a long service life. Another object of the present application is to provide an anti-slide pile drilling rig equipment using the above drill bit.

In order to achieve the above purpose, the present application provides a drill bit, comprising a square frame, a Laylo triangle base, a guide Laylo triangle, a pick assembly and a scraper; the guide Laylow triangle is arranged in the square frame and is used for connecting The transmission mechanism, the guide Laylo triangle block is fixedly connected with the Laylow triangle base body, the pick assembly is protrudingly arranged on the end face of the Laylow triangle base body away from the guide Laylow triangle block, and the scraper is arranged on the The perimeter of the Lello triangle base and used to scrape the pile holes.

Optionally, three sets of radially extending installation bases are provided on the Laylo triangle base away from the end surface of the guide Laylow triangle block, and the pick assembly includes a plurality of sets of picks provided on the installation base.

Optionally, the picks are arranged at an angle to the axis direction of the Laylo delta base, and all the picks are inclined toward the rotation direction of the Laylo delta base.

Optionally, the outer peripheral surface of the mounting base is flush with the Laylow triangle base.

Optionally, a set of side surfaces of the mounting base coincide with the connecting line between the center and the apex of the Laylo triangle base, and the side surfaces are provided with mounting grooves extending along the length direction thereof, and the scraper is fixed to the base by bolts. the mounting slot.

Optionally, wear-resistant strips are provided on the peripheral portion of the Rylo delta base that is fitted to the side of the guide Rylo delta block, and the periphery of the side of the guide Rylo delta block away from the Rylo delta base body.

Optionally, the side of the guiding Laylo delta block away from the Laylo delta base body is provided with a stop and a threaded hole for connecting the drive shaft.

The present application also provides an anti-sliding pile drilling rig equipment, comprising the drill bit according to any one of the above.

During drilling construction, a rotary drilling rig and conventional drill bits can be used to drill and guide holes, and then the drill bits provided by the present application can be replaced to further break the rock and perform edge trimming to obtain the required square holes. The specific implementation is to use the transmission mechanism to drive the guiding Lelow triangle to rotate in the square frame. At this time, the guiding Lelow triangle rotates around its own center and revolves around the center of the square frame, and the Lelow triangle base deviates from its center/axis at any point. The trajectory is a square with a circular arc transition. First, the rock layer is destroyed by the pick assembly and rotary digging to form a square hole. At the same time, the scraper on the periphery of the Lailo triangle base body scrapes and repairs the under-digged part around the square hole to realize rapid digging to form a square hole. . When digging, the bottom pick assembly and the side scraper are used to ensure the digging speed and improve the service life of the drill bit.

Description of drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only It is an embodiment of the present application. For those of ordinary skill in the art, other drawings can also be obtained according to the provided drawings without any creative effort.

1 is a structural diagram of a drill bit provided by an embodiment of the application;

Fig. 2 is the schematic diagram of guiding Laylow triangle block and Laylow triangle base;

Fig. 3 is the arrangement diagram of the pick assembly;

Figure 4 is a trajectory diagram of the pick assembly.

in:

1- Picking teeth, 2- Scraper, 3- Laylo triangle base, 4- Wear strip, 5- Guide Laylo triangle, 6- Square frame;

31-installation base;

51- mouth, 52- threaded hole.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

In order to make those skilled in the art better understand the solution of the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

Please refer to FIG. 1 to FIG. 4. FIG. 1 is a structural diagram of a drill bit provided by an embodiment of the application, FIG. 2 is a schematic diagram of a guide Lello triangle block and a Lello triangle base, and FIG. 3 is an arrangement diagram of a pick assembly. 4 is the trajectory diagram of the pick assembly.

The embodiment of the present application provides a drill bit, which mainly includes a square frame 6 , a guide Lello triangle 5 , a Lello triangle base 3 , a scraper 2 and a pick assembly. As shown in Fig. 1 and Fig. 2, the guide Lello triangle 5 is arranged in the square frame 6 and is used to connect with the transmission mechanism, and the square frame 6 plays a limiting role on the guide Lello triangle 5, so that the transmission mechanism Driven by the drive shaft, the guiding Lello triangle 5 can rotate around its own axis, and at the same time the guiding Lello triangle 5 can be attached to the inner wall of the square frame 6 through its side, so as to realize the center of the square frame 6. rotate.

The guiding Laylo triangle block 5 is fixedly connected to the Laylow triangle base body 3, usually by welding or integral molding, and the tooth pick assembly and the scraper 2 are both cemented carbide. The pick assembly is arranged on the end surface of the Lello triangle base body 3 away from the end of the guide Lello triangle block 5 and protrudes relative to the end surface, and the scraper 2 is arranged on the periphery of the Lello base body. When the drill bit is in the working state of digging downwards, the pick assembly is located at the bottom end of the drill bit, so that the rock layer is first broken by the pick pick assembly and excavated to form a square hole. With the rotation of the drill bit, it is arranged on the circumference of the Lello triangle base 3 The scraper 2 at the top is used, and the square holes are scraped and modified to improve the quality of the square holes and facilitate the anti-sliding piles to be driven into the drilled holes.

With further reference to FIGS. 1 to 3 , the pick assembly includes a plurality of picks 1 , a mounting base 31 is protruded from the Lello triangle base 3 away from the end surface of the guide Lello triangle 5 , and the picks 1 are equally spaced below the mounting base 31 . The end face forms a full-section cutting, and can be quickly replaced after damage. The lower end face here specifically refers to the end face parallel to the horizontal plane at the bottom of the mounting base 31 when the drill bit is drilling downward. Specifically, three sets of mounting bases 31 are provided, and the three sets of mounting bases 31 are generally arc-shaped trapezoids, and are arranged radiatingly on the end surfaces of the Lello triangle bases 3 . The outer peripheral surface of the mounting base 31 is preferably flush with the outer peripheral surface of the Laylo delta base 3, and the side surface of one side of the mounting base 31 is coincident with the connection line between the center and the top corner of the Laylo delta base 3, that is, the mounting base 31. The apex is located at the apex of the base 3 of the Laylo triangle, and its side is provided with a mounting slot extending along its length direction. The scraper 2 is arranged in the mounting slot and is installed and pressed with bolts, and the scraper 2 is easily replaced after wear. In other words, the scraper 2 is extended along the direction of the connecting line between the center and the top corner of the Lello triangle base body 3, so as to facilitate the reshaping of the drilled hole.

In order to facilitate the pick 1 to destroy the rock formation, the axes of the pick 1 and the bit are inclined at a certain angle. Generally speaking, all the ratchets are inclined towards the Lello triangle base 3, that is, the direction in which the bit rotates. The movement trajectory of the pick 1 is shown in Figure 4. Driven by the guiding Laylo triangle 5 and the Laylo triangle base 3, the pick 1 rotates and breaks the rock formation to initially form a nearly square hole, and the scraper 2 drills around the hole. Repair the undercut part.

In one embodiment, as shown in FIG. 2 , in order to facilitate the connection of the guiding Lello delta block 5 with the transmission shaft of the transmission mechanism, the end face of the guiding Lello delta block 5 away from the Lello delta base body 3 is provided with a stop 51 and a plurality of threads. The holes 52 and the threaded holes 52 are evenly arranged along the circumference of the stopper 51 , so that the stopper 51 can be used for positioning, and the reliability of the transmission connection can be improved through the threaded holes 52 .

At the same time, in order to slow down the wear of the drill bit, in the present application, wear-resistant strips 4 are particularly provided on the end face of the Lello delta base body 3 abutting the square frame 6 and the end face of the Lello delta block 5 away from the Lello delta base body 3 . Referring to FIG. 2 , the base 3 of the Laylo triangle is grooved at the peripheral edge of the guide Laylo triangle 5, and the wear strip 4 is inserted therein; The abrasive bar 4 is inserted into it, and the wear bar 4 can be replaced after wear.

When applying the drill bit provided by this application for drilling construction of square holes, firstly use a rotary drilling rig and a traditional drill bit to drill and guide holes, and then replace the drill bit provided by this application to further break the rock formation and trim the edges, and quickly obtain the required square holes . Specifically, the transmission mechanism is used to drive the guide Laylo triangle 5 to rotate around its axis, and at the same time, the guide Laylow triangle 5 is driven to rotate around the center of the square frame 6 in the square frame 6, so that the pick 1 is as shown in FIG. 4 . Track operation, first use the pick 1 to destroy the rock formation, and then use the scraper 2 to repair the shape to obtain a high-quality square hole suitable for anti-sliding pile driving. The overall required torque and power of the drill bit provided by the present application are smaller, the driving efficiency is high, the cooperation of the pick 1 and the scraper 2 prolongs the service life of the drill bit, and the impact on the rock formation around the hole wall is small.

Embodiments of the present application also provide an anti-sliding pile drilling rig equipment, including a transmission mechanism and the drill bit described in the above embodiments, the transmission mechanism and other parts of the mechanism can refer to the existing anti-sliding pile drilling rig equipment settings, which will not be repeated in this application.

The anti-sliding pile drilling rig equipment and drill bit provided by the present application have been introduced in detail above. Specific examples are used herein to illustrate the principles and implementations of the present application, and the descriptions of the above embodiments are only used to help understand the methods and core ideas of the present application. It should be pointed out that for those of ordinary skill in the art, without departing from the principles of the present application, several improvements and modifications can also be made to the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims (8)

1. a drill bit, is characterized in that, comprises square frame, Lai Luo triangle base body, guide Lai Luo triangle block, pick assembly and scraper; Described guide Lai Luo triangle block is arranged in described square frame and is used for connecting transmission mechanism , the guide Laylo triangle is fixedly connected with the Laylow triangle base, the pick assembly is protruded on the end face of the Laylow base away from the guide Laylow triangle, and the scraper is arranged on the Laylow triangle base. The perimeter of the Lello triangle base and used to scrape the pile holes. 2 . The drill bit according to claim 1 , wherein three sets of radially extending mounting bases are arranged on the end face of the Laylo triangle base away from the guide Laylow triangle block, and the pick assembly includes a set of mounting bases disposed on the Describe the multiple sets of picks for the mounting base. 3 . The drill bit according to claim 2 , wherein the picks are arranged at an angle with the axis direction of the Laylo delta base, and all the picks face the rotation direction of the Laylo delta base. 4 . Tilt setting. 4 . The drill bit according to claim 2 , wherein the outer peripheral surface of the mounting base is flush with the Rylo triangle base. 5 . 5 . The drill bit according to claim 4 , wherein a set of side surfaces of the mounting base coincide with the line between the center and the vertex of the Laylo triangle base, and the side surfaces are opened along its length direction. 6 . The installation groove is extended, and the scraper is fixed to the installation groove by bolts. 6 . The drill bit according to claim 1 , wherein the Lello triangle base body fits the circumference of one side of the guide Lello triangle block, and the guide Lello triangle block is away from the side of the Lello triangle base body. 7 . Wear-resistant strips are provided on the periphery of the . 7 . The drill bit according to claim 1 , wherein the side of the guide Lello delta away from the Lello delta base body is provided with a stop and a threaded hole for connecting the drive shaft. 8 . 8. An anti-sliding pile drilling rig equipment, characterized in that it comprises the drill bit according to any one of claims 1-7.

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