CN219327508U - Rotary drilling bit structure easy to disassemble and assemble - Google Patents

Abstract

The utility model discloses a rotary drilling bit structure easy to assemble and disassemble, which comprises: transfer line and barrel, its characterized in that includes: the guide assembly comprises a guide ring and a bearing shaft, the upper end and the lower end of the bearing shaft are respectively detachably connected with the transmission rod and the cylinder body, the guide ring comprises a plurality of ring blocks which are arranged around the bearing shaft, and the ring blocks can jointly enclose a ring shape; the detachable structure comprises a plurality of clamping blocks and clamping grooves, wherein the clamping blocks are circumferentially arranged on the outer peripheral surface of the bearing shaft, the annular blocks are close to one end of the bearing shaft and are respectively provided with the clamping grooves, the clamping grooves are in one-to-one correspondence with the clamping blocks, the clamping grooves are downward and are open inwards, the clamping blocks are embedded into the clamping grooves and are connected, the guide ring can be sleeved on the outer peripheral surface of the bearing shaft and is detachably connected with the bearing shaft, and a user can conveniently realize replacement and detachment of the guide ring through detachment and installation of the annular blocks.

Description

Rotary drilling bit structure easy to disassemble and assemble

Technical Field

The utility model relates to the technical field of rotary drilling tools, in particular to a rotary drilling bit structure easy to assemble and disassemble.

Background

The rotary drilling bit is a construction tool suitable for hole forming operation in building foundation engineering. The method is widely used for foundation construction projects such as high-rise buildings, highway bridges, municipal construction and the like. The general working principle of the rotary drilling bit is as follows: under the action of external pressure and torque, the soil layer is drilled by using the rotary drilling bit, meanwhile, the drilled slurry is temporarily stored in the drill bit, after the drilling is completed, the drill bit can be lifted, the drill bit is separated from a foundation pit, the slurry in the drill bit is poured out through the counter-rotating drill bit, and then the drilling operation is carried out again, so that the drilling operation is realized.

However, when dealing with hard rock stratum with large diameter and deep hole, the existing rotary digging construction technology mainly adopts a drilling mode of drilling with different diameters of rock-socketed barrel drilling or cone-socketed barrel drilling in a grading manner, so that progressive precession and hole digging are realized. However, in the process of hierarchical drilling, when a cutter on one side of the rotary drilling bit collides with harder stratum, especially when the rotary drilling bit drills to an inclined rock surface, the rotary drilling bit is easy to deflect to cause deflection of a drilled hole, so that the rotary drilling construction is unstable, and the piling quality is affected.

The application number is: 201921690619.4 discloses a rotary drilling rig and a rotary drilling rig thereof, and the rotary drilling rig is beneficial to avoiding the problem of drilling skew by the design of an annular centralizing ring so as to provide an auxiliary effect on the rotation of a drilling cylinder.

But the application number is: 201921690619.4 and centering ring of dig drilling tool soon and dig rig soon need change or when dismantling, need dismantle first and bore a section of thick bamboo, then just can split to centering ring body, if need change centering ring, still need be connected new centering ring and transfer line to restore to dismantling bore a section of thick bamboo, centering ring's change is comparatively troublesome, inconvenient.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art.

The utility model provides a rotary drilling bit structure easy to assemble and disassemble, which comprises a transmission rod, a cylinder body and further comprises: the guide assembly comprises a guide ring and a bearing shaft, the upper end and the lower end of the bearing shaft are respectively and detachably connected with the transmission rod and the cylinder body, the guide ring comprises a plurality of ring blocks which are arranged around the bearing shaft, and the ring blocks can jointly enclose a ring shape; the detachable structure comprises a plurality of clamping blocks and clamping grooves, wherein the clamping blocks are circumferentially arranged on the outer peripheral surface of the bearing shaft, the clamping grooves are formed in one ends, close to the bearing shaft, of the plurality of ring blocks, the clamping grooves are in one-to-one correspondence with the clamping blocks, the clamping grooves are downwards and inwards open, the clamping blocks are embedded with the clamping grooves to be connected, and the guide ring can be sleeved on the outer peripheral surface of the bearing shaft and is detachably connected with the bearing shaft.

According to the embodiment of the utility model, the rotary drilling bit structure easy to assemble and disassemble has at least the following beneficial effects: the outer peripheral surface of the upper end of the bearing shaft is provided with a plurality of outwards protruding clamping blocks, the plurality of ring blocks are adapted to form clamping grooves extending up and down at one end close to the bearing shaft, the clamping grooves are correspondingly arranged with the clamping blocks and are downwards and inwards opened, when the bearing shaft is used, a user inserts the ring blocks to the clamping blocks from top to bottom, so that the clamping blocks are clamped with the clamping grooves, the connection between the ring blocks and the bearing shaft can be primarily realized, the relative position relation between the ring blocks and the bearing shaft can be limited through the mutual abutting of the clamping blocks and the clamping grooves, and the detachable connection between the guide ring and the bearing shaft can be conveniently realized; the guide ring comprises a plurality of ring blocks, the plurality of ring blocks are sleeved on the outer circumferential surface of the bearing shaft, the plurality of ring blocks can be jointly enclosed into a ring shape and are all detachably connected with the bearing shaft, when the guide ring needs to be replaced or detached, a user only needs to separate the ring blocks from the bearing shaft, and the guide ring and the bearing shaft can be separated, namely, the user can conveniently realize the functions of replacing the guide ring with different sizes and the guide ring without detaching the cylinder body through detaching and installing the ring blocks, so that the assembly and disassembly flexibility of the rotary drilling bit structure easy to detach is improved, and the rotary drilling efficiency is improved; under the abutting action of the ring block and the pile hole, the transmission rod and the cylinder body are positioned at the center of the pile hole, and the problem of deflection of the pile hole is avoided.

According to some embodiments of the utility model, the clamping block is mortise and tenon connected with the clamping groove.

Specifically, fixture block and draw-in groove can be mortise and tenon connection, through the butt each other of fixture block and draw-in groove to can fix a position the relative position relation of fixture block and draw-in groove fast, thereby make the guide ring cover establish on the outer peripheral face of accepting the axle, can realize the location of both fast, so that the workman realizes subsequent installation and dismantlement.

According to some embodiments of the utility model, the clamping block is a trapezoid block which is gradually enlarged from inside to outside, and the clamping groove is a trapezoid groove which is gradually enlarged from inside to outside, and the trapezoid groove is connected with the trapezoid block in an adapting way.

Specifically, the fixture block is the trapezoidal piece that extends from top to bottom, and the draw-in groove is the trapezoidal groove that extends from top to bottom, when the fixture block card goes into in the draw-in groove, through the butt each other of trapezoidal piece and trapezoidal groove, is favorable to restricting the relative displacement of annular piece and bearing shaft in inside and outside direction to improve the annular piece and bear the connection stability of axle.

According to some embodiments of the utility model, the ring block is provided with a through hole, the outer peripheral surface of the bearing shaft is provided with a plurality of threaded holes, the threaded connection piece, the through hole and the threaded holes are correspondingly arranged, and the threaded connection piece is in threaded connection with the threaded holes after passing through the through hole.

The outer peripheral surface department of accepting the axle upper end is equipped with a plurality of screw holes, and the ring piece corresponds screw hole department and is provided with the perforation, and after fixture block and draw-in groove realized preliminary location, perforation and screw hole set up relatively, the user passes the threaded connection spare with screw hole threaded connection after the perforation, can realize the fixed connection of ring piece and accepting the axle, is favorable to fixed ring piece and accepting the relative positional relationship of axle, avoids the ring piece and accepts producing unnecessary rocking between the axle.

According to some embodiments of the utility model, the ring block comprises an inner plate and an outer plate which are arranged inside and outside, the outer plate and the inner plate are in convex arc shapes, and the clamping groove and the perforation are arranged on the inner plate.

The planking and inner panel all are the annular, draw-in groove and perforation all set up on the inner panel, under threaded connection's connected action to can realize the annular piece and accept the connection of axle, thereby can transmit the pressure of stake hole to the planking to the inner panel, through the inner panel with accept the butt of axle, thereby play righting effect to transfer line and barrel, be favorable to avoiding the problem that the drilling direction is inclined to appear.

According to some embodiments of the utility model, the ring block further comprises two side plates, wherein the two side plates are arranged between the outer plate and the inner plate, two ends of the side plates are respectively connected with the end part of the outer plate and the end part of the inner plate, and in the adjacent two ring blocks, the adjacent two side plates are detachably connected.

Two curb plates are the interval arrangement between planking and inner panel, the both ends of curb plate respectively with the tip of planking and the end connection of inner panel, thereby can transmit the pressure of stake hole to the planking to the inner panel, through the inner panel with accept the butt of axle, thereby play righting effect to transfer line and barrel, in adjacent two ring pieces, adjacent curb plate detachable connection, accessible curb plate's connection realization is connected between the adjacent ring piece promptly, be favorable to reinforcing ring piece constitution guide ring's overall stability and wholeness, be favorable to avoiding producing the problem appearance of relative movement between ring piece and the ring piece at the drilling process.

According to some embodiments of the utility model, the utility model further comprises a bolt and a nut, wherein the side plates are provided with mounting holes, and the bolt can be in threaded connection with the nut after passing through the mounting holes of the two adjacent side plates.

Specifically, after threaded connection piece passes the perforation after with screw hole threaded connection, can realize the preliminary location of annular piece with accept the axle, between two adjacent annular pieces, can make the mounting hole of two adjacent annular pieces relative, the user accessible bolt passes two relative mounting holes to make the terminal and the nut threaded connection of bolt, under the clamping action of bolt and nut, thereby can make two adjacent curb plates connect as an organic wholely.

According to some embodiments of the utility model, the ring block is hollowed in the up-down direction, and the side plate is provided with a hollowed part.

The annular block is in the hollow arrangement in the upper and lower directions, so that the weight of the annular block is reduced, namely the overall weight of the guide ring is reduced, the loss of the guide assembly to the kinetic energy of the transmission rod is reduced, the hollow part is arranged on the side plate, the weight of the annular block is further reduced, the gravity of the whole guide ring is reduced, the power loss of the transmission rod is reduced, the drilling efficiency is improved, and the assembly and the disassembly of the guide assembly are realized by workers.

According to some embodiments of the utility model, the upper end of the bearing shaft is provided with a downward concave transmission groove, the lower end of the bearing shaft is provided with a downward convex transmission lug, the transmission groove is detachably connected with the lower end of the transmission rod, and the transmission lug is detachably connected with the upper end of the cylinder.

When the lower end of the transmission rod is inserted into the transmission groove, the torque and the pressure of the transmission rod can be transmitted to the bearing shaft through the abutting connection of the transmission rod and the transmission groove, the transmission lug at the lower end of the bearing shaft is detachably connected with the upper end of the cylinder body, and the bearing shaft is used as a bridge for connecting the transmission rod and the cylinder body, so that the torque and the pressure of the transmission rod can be transmitted to the cylinder body to realize rotary digging of rocks.

According to some embodiments of the utility model, the drive rod and the barrel are both connected to a bearing pin.

When the lower end of the transmission rod is inserted into the transmission groove, a user can fixedly connect the transmission rod with the bearing shaft by penetrating the bolt through the transmission rod and the bearing shaft, and the user can detachably connect the bearing shaft with the cylinder by penetrating the bolt through the bearing shaft and the cylinder.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is an exploded view of an easily detachable rotary drill bit structure according to an embodiment of the present utility model;

fig. 2 is a schematic perspective view of a guide assembly of a rotary drilling bit structure easy to assemble and disassemble according to an embodiment of the present utility model;

FIG. 3 is an exploded view of a guide assembly of an easily removable rotary drill bit structure according to an embodiment of the present utility model;

FIG. 4 is a left side view of an easily removable rotary drill bit structure according to an embodiment of the present utility model;

FIG. 5 is a cross-sectional view of an easily removable rotary drill bit structure according to an embodiment of the present utility model;

fig. 6 is a schematic perspective view of a rotary drilling bit structure easy to assemble and disassemble according to an embodiment of the present utility model.

In the accompanying drawings: 100. a transmission rod; 200. a cylinder; 300. a guide assembly; 310. a guide ring; 311. a ring block; 3111. a clamping groove; 3112. a threaded connection; 3113. perforating; 3114. an inner plate; 3115. an outer plate; 3116. a side plate; 320. a receiving shaft; 321. a transmission groove; 322. a transmission lug; 323. a clamping block; 324. a threaded hole; 400. a first latch; 500. a second latch; 600. a connector; 610. a square head; 620. a connecting plate; 630. a reinforcing plate; 640. reinforcing ribs.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, the meaning of a number is not quantitative, and the meaning of a number is two or more, and greater than, less than, exceeding, etc. are understood to exclude the present number, and the meaning of above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated. In addition, three parallel schemes are presented and/or represented throughout, e.g., a and/or B represent a scheme that is met by a, a scheme that is met by B, or a scheme that is met by a and B simultaneously.

In the description of the utility model, there are phrases containing a plurality of parallel features, where the phrase defines a feature that is closest, for example: b, C provided on A, E connected with D, which means that B is provided on A, E connected with D, and C is not limited; but for the words representing the relationship between features, such as "spaced arrangement", "annular arrangement", etc., do not belong to this category. The phrase preceded by a "homonym" indicates that all features in the phrase are defined, e.g., B, C, D, all disposed on a, and B, C and D are disposed on a.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

Embodiments of the present utility model are described below in conjunction with fig. 1-6.

Referring to fig. 1 and 2, an embodiment of the present utility model provides a rotary drilling bit structure easy to assemble and disassemble, including: the driving rod 100, the cylinder 200, the guide assembly 300 and the detachable structure.

The upper end of the transmission rod 100 can be connected with a power head of the rotary drilling rig, and the transmission rod 100 can be rotated and pressed down under the driving action of the rotary drilling rig. The guide assembly 300 is disposed between the transmission rod 100 and the cylinder 200, and the guide assembly 300 includes a guide ring 310 and a receiving shaft 320, wherein the guide ring 310 is sleeved on the outer circumferential surface of the receiving shaft 320 and is detachably connected with the receiving shaft 320.

Specifically, the guide assembly 300 includes a guide ring 310 and a receiving shaft 320, wherein the upper end and the lower end of the receiving shaft 320 are detachably connected with the driving rod 100 and the cylinder 200, respectively, and when the receiving shaft 320 is connected with the driving rod 100 and the cylinder 200, the torque and the pressure of the driving rod 100 can be transferred to the cylinder 200, thereby realizing rotary digging of the cylinder 200 on the soil layer.

The guide ring 310 includes a plurality of ring blocks 311 arranged around the receiving shaft 320, and the plurality of ring blocks 311 can be collectively surrounded into a ring shape; the guide ring 310 is sleeved on the outer peripheral surface of the receiving shaft 320, specifically, the guide ring 310 includes a plurality of ring blocks 311, the plurality of ring blocks 311 are detachably connected with the outer peripheral surface of the receiving shaft 320, and when the plurality of ring blocks 311 are connected with the outer peripheral surface of the receiving shaft 320, the plurality of ring blocks 311 together enclose a ring shape. The ring block 311 is detachably connected with the outer peripheral surface of the receiving shaft 320, for example, the ring block 311 can be in threaded connection, mortise-tenon connection and the like with the outer peripheral surface of the receiving shaft 320.

In order to solve the problems of the prior art that the centralizing ring is not detachable and difficult to assemble and disassemble, the rotary drilling bit structure easy to disassemble further comprises a detachable structure, wherein the detachable structure comprises a plurality of clamping blocks 323 and clamping grooves 3111, and the plurality of clamping blocks 323 are circumferentially arranged on the outer circumferential surface of the bearing shaft 320.

Specifically, taking one side close to the central axis of the receiving shaft 320 as the inner side, the outer peripheral surface of the upper end of the receiving shaft 320 is provided with a plurality of outwards protruding clamping blocks 323, the plurality of clamping blocks 323 are circumferentially arranged at intervals, the inner plates 3114 of the plurality of annular blocks 311 are respectively provided with a clamping groove 3111 extending up and down at one end close to the receiving shaft 320, the clamping grooves 3111 are downwards and inwards open, the clamping grooves 3111 are arranged in a one-to-one correspondence with the clamping blocks 323, and the clamping blocks 323 can be inserted into the clamping grooves 3111 from bottom to top.

When in use, a user inserts the ring block 311 to the clamping block 323 from top to bottom, so that the clamping block 323 is clamped with the clamping groove 3111, and the connection between the ring block 311 and the receiving shaft 320 can be primarily realized, and the relative positional relationship between the ring block 311 and the receiving shaft 320 can be limited through the mutual abutting connection between the clamping block 323 and the clamping groove 3111.

When the guide ring 310 needs to be replaced or detached, a user only needs to separate the ring block 311 from the receiving shaft 320, so that the guide ring 310 and the receiving shaft 320 can be separated, namely, the user can conveniently realize the functions of replacing the guide ring 310 with different sizes and detaching the guide ring 310 through detaching and installing the ring block 311, without detaching the barrel 200, thereby being beneficial to improving the assembly and disassembly flexibility of the easy-to-detach rotary drilling bit structure and improving the rotary drilling efficiency; under the abutting action of the annular block 311 and the pile hole, the transmission rod 100 and the cylinder 200 are positioned at the center of the pile hole, and the problem of deflection of the pile hole is avoided.

Specifically, the fixture block 323 and the clamping groove 3111 may be in mortise and tenon connection, and through the mutual butt of the fixture block 323 and the clamping groove 3111, so that the relative positional relationship between the fixture block 323 and the clamping groove 3111 can be rapidly positioned, and the guide ring 310 is sleeved on the outer peripheral surface of the bearing shaft 320, so that positioning of the fixture block 323 and the clamping groove 3111 can be rapidly realized, and subsequent installation and detachment can be conveniently realized by workers.

For example, the clamping block 323 is a trapezoid block extending vertically, and the clamping groove 3111 is a trapezoid groove extending vertically, so that when the clamping block 323 is clamped in the clamping groove 3111, the trapezoid block and the trapezoid groove are in contact with each other, which is beneficial to limiting the relative displacement between the ring block 311 and the receiving shaft 320 in the inner and outer directions, so as to improve the connection stability between the ring block 311 and the receiving shaft 320. Under the abutting action of the annular block 311 and the pile hole, the transmission rod 100 and the cylinder 200 are positioned at the center of the pile hole, and the problem of deflection of the pile hole is avoided.

This easy dismouting digs drill bit structure soon still includes a plurality of threaded connection piece 3112, the ring piece 311 is equipped with perforation 3113, it is equipped with a plurality of screw holes 324 to accept the outer peripheral face department of axle 320 upper end, the interior contact surface of a plurality of ring pieces 311 all is equipped with perforation 3113 near the one end of accepting axle 320, perforation 3113 and screw hole 324 correspond the setting, after fixture block 323 realizes preliminary location with draw-in groove 3111, perforation 3113 and screw hole 324 set up relatively, the user passes behind perforation 3113 with threaded connection piece 3112 and screw hole 324 threaded connection, can realize the fixed connection of ring piece 311 and accepting axle 320, be favorable to fixed ring piece 311 and accept the relative positional relationship of axle 320, avoid producing unnecessary rocking between ring piece 311 and the accepting axle 320.

In the drilling process, the rotary drilling bit structure easy to disassemble and assemble provided by the embodiment of the utility model is beneficial to enabling the transmission rod 100 and the cylinder 200 to be positioned in the center of the pile hole through the arrangement of the guide assembly 300; the rotary drilling rig transmits torque to the transmission rod 100 and the cylinder 200 through the power head, so that the efficient propulsion of drilling operation is facilitated in the step drilling process, and the problems of low rock entering efficiency and low piling efficiency are avoided. The ring blocks 311 are enclosed into a ring shape together and are detachably connected with the bearing shaft 320, when the guide ring 310 needs to be replaced or detached, a user only needs to separate the ring blocks 311 from the bearing shaft 320, and the guide ring 310 and the bearing shaft 320 can be separated, namely, the user can conveniently realize the functions of replacing the guide ring 310 and detaching the guide ring 310 with different sizes through the detachment and installation of the ring blocks 311, without detaching the cylinder 200, thereby being beneficial to improving the assembly and disassembly flexibility of the rotary drilling bit structure easy to detach and mount and improving the rotary drilling efficiency.

The annular block 311 is the fretwork setting in the upper and lower direction, the annular block 311 includes planking 3115, inner panel 3114 and two curb plates 3116, planking 3115 is used for with the internal face butt in stake hole, thereby play the righting effect to accepting axle 320, planking 3115 and inner panel 3114 are the arc, planking 3115 is located the outside of inner panel 3114, under the connection effect of threaded connection piece 3112, thereby can realize the annular block 311 and accept the connection of axle 320, thereby can transmit the pressure of stake hole to the planking 3114 to the outer panel 3115, butt through inner panel 3114 and accepting axle 320, thereby play the righting effect to transfer line 100 and barrel 200, be favorable to avoiding the problem of drilling direction skew to appear.

Two curb plates 3116 all set up between planking 3115 and interior plate 3114, and two curb plates 3116 are the interval arrangement, and curb plate 3116's both ends respectively with the tip of planking 3115 and the end connection of interior plate 3114, under curb plate 3116's connection effect, can transmit the stake hole to the pressure of exterior plate 3115 department to interior plate 3114 on, interior plate 3114 is used for being connected with accepting axle 320 to make accept axle 320 to be located the center department of stake hole, be favorable to avoiding the problem that drilling direction skew appears, be favorable to guaranteeing the pore-forming quality.

Among the two adjacent ring blocks 311, the adjacent side plates 3116 are detachably connected, namely, the adjacent ring blocks 311 can be connected through the connection of the side plates 3116, which is beneficial to enhancing the overall stability and the integrity of the guide ring 310 formed by the ring blocks 311 and avoiding the occurrence of the problem of relative movement between the ring blocks 311 in the drilling process.

The rotary drilling bit structure easy to disassemble and assemble further comprises bolts and nuts, wherein mounting holes are formed in the side plates 3116, and the bolts can be in threaded connection with the nuts after penetrating through the mounting holes of the two adjacent side plates 3116. When the user passes the threaded connector 3112 through the through hole 3113 and then is in threaded connection with the threaded hole, the preliminary positioning of the ring block 311 and the receiving shaft 320 can be achieved, between two adjacent ring blocks 311, the mounting holes of two adjacent ring blocks 311 can be made opposite, the user can pass through the two opposite mounting holes through the bolt, the tail end of the bolt is in threaded connection with the nut, and under the clamping action of the bolt and the nut, the two adjacent side plates 3116 can be made to be connected into a whole.

The annular block 311 is the fretwork setting in the upper and lower direction, the annular block 311 includes planking 3115, inner panel 3114 and two curb plates 3116, planking 3115 is used for with the internal face butt in stake hole, thereby play righting effect to accepting the axle 320, planking 3115 and inner panel 3114 are the arc, planking 3115 is located the outside of inner panel 3114, two curb plates 3116 all set up between planking 3115 and inner panel 3114, two curb plates 3116 are the interval arrangement, the both ends of curb plate 3116 are connected with the tip of planking 3115 and the tip of inner panel 3114 respectively, under the connection effect of curb plate 3116, can transmit the pressure of stake hole department to inner panel 3114 on to the outer panel 3115, inner panel 3114 is used for with accepting the axle 320 and be connected, thereby make accepting axle 320 to be located the center department in stake hole, be favorable to avoiding the problem of drilling direction skew to appear, be favorable to guaranteeing the pore-forming quality.

The hollow part is arranged on the side plate 3116, and the hollow part is favorable for further lightening the weight of the ring block 311, so that the gravity of the whole guide ring 310 is lightened, the power loss of the transmission rod 100 is reduced, the drilling efficiency is improved, and the assembly and the disassembly of the guide assembly 300 are also favorable for workers.

Specifically, referring to fig. 4, 5 and 6, the upper end of the receiving shaft 320 is provided with a downward concave transmission groove 321, the lower end of the receiving shaft 320 is provided with a downward convex transmission projection 322, the cross sections of the transmission groove 321 and the transmission projection 322 are polygonal, such as triangle, square, pentagon and the like, when the lower end of the transmission rod 100 is inserted into the transmission groove 321, the torque and the pressure of the transmission rod 100 can be transmitted to the receiving shaft 320 through the mutual abutting of the transmission rod 100 and the transmission groove 321, the transmission projection 322 at the lower end of the receiving shaft 320 is inserted into the top of the cylinder 200, namely, the receiving shaft 320 can play a role of connecting the transmission rod 100 with the cylinder 200, so that the torque and the pressure of the transmission rod 100 can be transmitted to the cylinder 200.

After the bearing shaft 320 is positioned with the transmission rod 100 and the cylinder 200 through the transmission groove 321 and the transmission projection 322, the bearing shaft 320 can be fixed with the transmission rod 100 and the cylinder 200 through a bolt connection mode.

Referring to fig. 3, specifically, a first bolt hole and a second bolt hole are disposed on the receiving shaft 320, the first bolt hole is located above the second bolt hole, the first bolt hole is communicated with the transmission groove 321 and is staggered with the guide ring 310 in the up-down direction, the second bolt hole penetrates through the transmission bump 322 to be disposed, a third bolt hole penetrating through the transmission rod 100 is disposed, a fourth bolt hole penetrating through the barrel 200 is disposed at the top of the barrel, and the rotary drilling bit structure easy to disassemble further comprises a first bolt 400 and a second bolt 500.

When the lower end of the transmission rod 100 is inserted into the transmission groove 321, the first pin hole is communicated with the third pin hole, and after the first pin 400 is inserted into the third pin hole and the first pin hole, a user can realize connection between the transmission rod 100 and the receiving shaft 320, the first pin hole and the guide ring 310 are staggered in the up-down direction, specifically, the guide ring 310 can be clamped with the receiving shaft 320 from top to bottom, the first pin hole is arranged below the guide ring 310, so that the problem that the first pin 400 is blocked in disassembly and installation of the ring block 311 after passing through the first pin hole can be avoided.

Referring to fig. 5 and 6, the top of the barrel 200 is provided with a fourth pin hole penetrating through the barrel 200, when the transmission projection 322 penetrates into the top of the barrel 200, a user can pass through the second pin hole and the fourth pin through the second pin 500, so that the detachable connection of the bearing shaft 320 and the barrel 200 is realized, and under the connection effect of the bearing shaft 320, the transmission rod 100 can transmit torque and pressure to the barrel 200, so that the barrel 200 can drill and dig a rock stratum soon.

Referring to fig. 3 and 4, a connector 600 is provided at the upper end of the cylinder 200, the connector 600 includes a square head 610, a connection plate 620, a reinforcing plate 630 and a reinforcing rib 640, the connection plate 620 is fixedly connected to the top of the cylinder 200, the square head 610 is fixedly connected to the connection plate 620, a plurality of reinforcing plates 630 are connected between the square head 610 and the connection plate 620, the reinforcing plates 630 are vertically arranged, the reinforcing rib 640 is fixedly connected to the top of the cylinder 200 and located on the bottom surface of the connection plate 620, and a fourth pin hole is provided on the square head 610.

The setting of strengthening rib 640 can strengthen the connection stability of connecting plate 620 and barrel 200, and square head 610 can be connected with the lower extreme of transmission lug 322, through the connected action of accepting axle 320, can transmit the moment of torsion and the pressure of transfer line 100 to barrel 200 department to realize getting to the drilling of rock, be connected with a plurality of reinforcing plates 630 between square head 610 and the connecting plate 620, reinforcing plate 630 can play the supporting role to square head 610, is favorable to avoiding square head 610 to warp the problem of damage to appear.

In other embodiments of the present utility model, the diameter of the guide ring 310 may be larger than the diameter of the cylinder 200, and the guide ring 310 may serve as a guide for the cylinder 200 when it abuts against the inner wall surface of the pile hole.

While the preferred embodiments of the present utility model have been illustrated and described, the present utility model is not limited to the examples, and various equivalent modifications and substitutions can be made by those skilled in the art without departing from the spirit of the present utility model, and these equivalent modifications and substitutions are intended to be included in the scope of the present utility model as defined in the appended claims.

Claims (10)

1. A rotary drilling bit structure easy to disassemble and assemble, comprising: transfer line and barrel, its characterized in that includes:

the guide assembly comprises a guide ring and a bearing shaft, the upper end and the lower end of the bearing shaft are respectively detachably connected with the transmission rod and the cylinder body, the guide ring comprises a plurality of ring blocks which are arranged around the bearing shaft, and the ring blocks can jointly enclose a ring shape;

the detachable structure comprises a plurality of clamping blocks and clamping grooves, wherein the clamping blocks are circumferentially arranged on the outer peripheral surface of the bearing shaft, the clamping grooves are formed in the annular blocks, which are close to one end of the bearing shaft, the clamping grooves are arranged in one-to-one correspondence with the clamping blocks, the clamping grooves are downwards and inwards open, the clamping blocks are embedded in the clamping grooves and are connected, and the guide rings can be sleeved on the outer peripheral surface of the bearing shaft and detachably connected with the bearing shaft.

2. The easy-to-disassemble rotary drill bit structure of claim 1, wherein the clamping block is mortise and tenon connected with the clamping groove.

3. The rotary drilling bit structure easy to assemble and disassemble according to claim 2, wherein the clamping block is a trapezoid block which is gradually enlarged from inside to outside, the clamping groove is a trapezoid groove which is gradually enlarged from inside to outside, and the trapezoid groove is connected with the trapezoid block in an adapting way.

4. The rotary drilling bit structure of claim 1, further comprising a plurality of threaded connectors, wherein the ring block is provided with a through hole, a plurality of threaded holes are formed in the outer circumferential surface of the receiving shaft, the threaded connectors, the through holes and the threaded holes are correspondingly formed, and the threaded connectors are in threaded connection with the threaded holes after penetrating through the through holes.

5. The easy-to-disassemble rotary drill bit structure of claim 4, wherein the ring block comprises an inner plate and an outer plate which are arranged inside and outside, the outer plate and the inner plate are both in an outwards convex arc shape, and the clamping groove and the through hole are both arranged on the inner plate.

6. The easy-to-disassemble rotary drill bit structure of claim 5, wherein the ring block further comprises two side plates, the two side plates are arranged between the outer plate and the inner plate, two ends of the side plates are respectively connected with the end parts of the outer plate and the end parts of the inner plate, and in the two adjacent ring blocks, the two adjacent side plates are detachably connected.

7. The easy-to-disassemble rotary drill bit structure of claim 6, further comprising a bolt and a nut, wherein the side plates are provided with mounting holes, and the bolt can be in threaded connection with the nut after passing through the mounting holes of two adjacent side plates.

8. The rotary drilling bit structure easy to assemble and disassemble according to claim 6, wherein the ring block is hollow in the up-down direction, and the side plate is provided with a hollow portion.

9. The rotary drilling bit structure of claim 1, wherein the upper end of the receiving shaft is provided with a downward concave transmission groove, the lower end of the receiving shaft is provided with a downward convex transmission lug, the transmission groove is detachably connected with the lower end of the transmission rod, and the transmission lug is detachably connected with the upper end of the cylinder.

10. The easy-to-disassemble rotary drill bit structure of claim 9, wherein the transmission rod and the cylinder are both connected with the bearing shaft plug.

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