CN112252965A

CN112252965A - Ground drilling device for protecting drill bit

Info

Publication number: CN112252965A
Application number: CN202011193053.1A
Authority: CN
Inventors: 袁洪严
Original assignee: Zhengzhou Tietou Machinery Technology Co ltd
Current assignee: Zhengzhou Tietou Machinery Technology Co ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-01-22

Abstract

The invention discloses a ground drilling device for protecting a drill bit, which comprises a drilling machine body, wherein a cavity is formed in the drilling machine body, the upper side of the cavity is communicated with a connecting groove, the top wall of the connecting groove is rotatably matched with a rotating shaft, the lower side of the rotating shaft is rotatably connected with a rotating block, a rotating groove is formed in the rotating block, the rotating shaft is positioned in the rotating groove and is fixedly connected with a matching block, a butting groove communicated with the rotating groove is formed in the rotating block, a butting block capable of butting against the matching block is slidably connected in the butting groove, a butting spring is connected between the butting block and the inner wall of the butting groove, and a rotating wheel is fixedly connected in the cavity of the rotating block.

Description

Ground drilling device for protecting drill bit

Technical Field

The invention relates to the field of drilling machines, in particular to a ground drilling device for protecting a drill bit.

Background

Because of the engineering requirements, the ground is often required to be drilled in the construction process, when the drill bit is drilled, if the drill bit is drilled downwards until hard rocks are hit, the original speed of the drill bit is kept, the drill bit is easy to damage, and meanwhile, after the drill hole is drilled, the broken rocks in the drill hole are dug out manually, which is very troublesome, the invention provides the device which can protect the drill bit when the drill hole is drilled on the ground and can bring the rocks out after the drill hole is drilled.

Disclosure of Invention

Aiming at the technical defects, the invention provides a ground drilling device for protecting a drill bit, which can overcome the defects.

The invention relates to a ground drilling device for protecting a drill bit, which comprises a drilling machine body, wherein a cavity is formed in the drilling machine body, the upper side of the cavity is communicated with a connecting groove, the top wall of the connecting groove is rotatably matched with a rotating shaft, the lower side of the rotating shaft is rotatably connected with a rotating block, a rotating groove is formed in the rotating block, the rotating shaft is positioned in the rotating groove and is fixedly connected with a matching block, a butting groove communicated with the rotating groove is formed in the rotating block, a butting block capable of butting against the matching block is slidably connected in the butting groove, a butting spring is connected between the butting block and the inner wall of the butting groove, a rotating wheel is fixedly connected in the cavity by the rotating block, a conjunction block is fixedly connected to the lower side of the rotating wheel, a fixed block is fixedly connected to the lower side of the conjunction block, a drilling device is arranged in the fixed block, and the drilling device, a fixed groove is formed in the upper side of the fit groove, a spline shaft is rotatably matched between the fixed groove and the fit groove, the spline shaft is positioned in the fit groove, a spline is connected with an inclusion block, the inclusion block is provided with a fit groove with a downward opening, a drill bit is slidably connected in the fit groove, a connecting spring is connected between the drill bit and the top wall of the fit groove, the upper side of the drill bit is communicated with one vertical side of an oil pipe, a piston mandril fixedly connected with the drill bit is slidably connected in the oil pipe, a meshing groove is formed in the upper end of the right side of the fit groove, a threaded lead screw is rotatably matched with a wall body between the meshing groove and the fit groove, the threaded lead screw is positioned in the fit groove, is fixedly connected with a sliding block fixedly connected with the inclusion block and slidably connected with the fit groove, and is positioned in the meshing groove and is fixedly connected, a belt wheel groove is formed in the upper side of the meshing groove, a transmission shaft positioned on the right side of the threaded screw rod is rotatably matched between the belt wheel groove and the meshing groove, the transmission shaft is positioned in the meshing groove, a spline gear meshed with the containing block is connected in a spline mode, when the drill bit punches holes on the ground and hits hard rocks, the upward force of the drill bit is larger than the elasticity of the connecting spring, the piston ejector rod moves upwards, the oil pressure in the oil pipe is increased, the spline gear is disengaged from the fixed gear, the fixed gear does not rotate, the sliding block does not move downwards until the drill bit drills the rocks open by means of the elasticity of the connecting spring, the rotating wheel is rotatably connected with a connecting screw rod, the connecting screw rod is in belt transmission connection with the rotating shaft in the connecting groove, and the rotating block is fixedly connected with a connecting block rotatably connected with the connecting screw rod, the connecting screw rod is located the internal rotation of drilling machine is connected with the restriction piece, be provided with recovery unit in the restriction piece, recovery unit is including seting up restriction groove in the restriction piece, connecting screw rod is located restriction inslot threaded connection has the screw thread piece, screw thread piece downside fixedly connected with collection box, the collection box downside rotates installs the electromagnetic door, the axis of rotation can drive the collection box rotates the drilling position, the collection box takes out the rock in arriving the drill hole downwards.

Preferably, the drilling device further comprises a fixed belt wheel which is positioned in the fixed groove and fixedly connected with the spline shaft, a belt wheel groove is formed in the upper side of the fixed groove, a fixed shaft which is positioned on the right side of the spline shaft is rotatably matched with a wall body between the fixed groove and the belt wheel groove, the fixed shaft and the transmission shaft are positioned in the belt wheel groove and are in transmission connection through the belt wheel, the fixed shaft extends downwards to the lower side of the belt wheel groove, the tail end of the fixed shaft is in power connection with a rotating motor embedded in the inner wall of the fixed block, the fixed shaft is positioned in the fixed groove and fixedly connected with a solid block, a deformation groove is formed in the hollow block, three sliding grooves are communicated in an annular array in the deformation groove, a moving block is connected in a sliding manner to the sliding grooves, an extending block is fixedly connected in the deformation, one side of the oil pipe extends to the deformation groove, a piston compression bar fixedly connected with the extension block is connected in the sliding groove, and a stretching belt is connected between the fixed belt wheel and the belt wheel block.

Preferably, the recovery unit is including seting up the accumulator in the collection box, the axis of rotation upwards extends to drilling organism upper end inner wall power is connected with inlay in the power motor in the drilling organism, cavity left side wall fixedly connected with supports the piece, the turning wheel right side fixedly connected with can with support the stop piece of piece butt.

The invention has the beneficial effects that: when drilling, when touchhing hard rock, because connecting spring does not bear and does not live and come from the decurrent pressure in ground, make piston ejector pin rebound, thereby make the outside extension increase of band pulley piece, thereby change the rotational speed ratio between band pulley piece and the fixed band pulley and make fixed band pulley rotational speed increase, thereby the rotational speed of drill bit is accelerated, spline gear and fixed gear break away from the meshing simultaneously, make the sliding block not drive the drill bit and descend, the power through connecting spring's restoration comes to punch for ground this moment, thereby the effectual drill bit of having guaranteed can not damage because of touchhing hard rock, simultaneously after the completion of holing, the collection box can stretch into in the cavity and dig out broken rock.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic view of the overall construction of a surface drilling apparatus for protecting a drill bit;

fig. 2 is an enlarged view of a portion of the fixing block 24 of fig. 1;

FIG. 3 is a schematic view of the structure in the direction A-A in FIG. 2;

FIG. 4 is a partial structure view of FIG. 1 at B;

FIG. 5 is a schematic view of the structure in the direction C-C in FIG. 4;

fig. 6 is a schematic view of the structure in the direction D-D in fig. 1.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

The invention will now be described in detail with reference to fig. 1-6, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

The ground drilling device for protecting the drill bit comprises a drilling machine body 14, wherein a cavity 17 is formed in the drilling machine body 14, a connecting groove 13 is communicated with the upper side of the cavity 17, a rotating shaft 11 is rotatably matched with the top wall of the connecting groove 13, a rotating block 52 is rotatably connected to the lower side of the rotating shaft 11, a rotating groove 53 is formed in the rotating block 52, a matching block 57 is fixedly connected to the rotating shaft 11 and positioned in the rotating groove 53, an abutting groove 56 communicated with the rotating groove 53 is formed in the rotating block 52, an abutting block 54 capable of abutting against the matching block 57 is slidably connected in the abutting groove 56, an abutting spring 55 is connected between the abutting block 54 and the inner wall of the abutting groove 56, a rotating wheel 16 is fixedly connected to the rotating block 52 and positioned in the cavity 17, an engaging block 58 is fixedly connected to the lower side of the rotating wheel 16, and a fixed block 24 is fixedly connected to the lower side of the engaging block 58, a drilling device is arranged in the fixed block 24 and comprises a fitting groove 43 with a downward opening, a fixed groove 59 is formed in the upper side of the fitting groove 43, a spline shaft 33 is rotatably matched between the fixed groove 59 and the fitting groove 43, the spline shaft 33 is positioned in the fitting groove 43 and is in spline connection with a containing block 36, the containing block 36 is provided with a matching groove 41 with a downward opening, a drill bit 42 is connected in the matching groove 41 in a sliding manner, a connecting spring 40 is connected between the drill bit 42 and the top wall of the matching groove 41, the upper side of the drill bit 42 is communicated with the vertical side of an oil pipe 26, a piston mandril 39 fixedly connected with the drill bit 42 is connected in the oil pipe 26 in a sliding manner, an engaging groove 60 is formed in the upper end of the right side of the fitting groove 43, a threaded lead screw 44 is rotatably matched with the wall body between the engaging groove 60 and the fitting groove 43, and the threaded lead screw 44 is positioned in the fitting groove 43 and is fixedly connected with the containing block 36 The sliding block 37 is slidably connected with the matching groove 43, the fixed gear 35 is fixedly connected with the threaded screw 44 in the meshing groove 60, the belt wheel groove 50 is formed in the upper side of the meshing groove 60, a transmission shaft 49 positioned on the right side of the threaded screw 44 is rotatably matched between the belt wheel groove 50 and the meshing groove 60, the spline gear 47 meshed with the containing block 36 is connected to the transmission shaft 49 in the meshing groove 60 in a spline mode, when the drill bit 42 punches holes on the ground and hits hard rock, the upward force of the drill bit 42 is larger than the elasticity of the connecting spring 40, so that the piston mandril 39 moves upwards, the oil pressure in the oil pipe 26 is increased, the spline gear 47 is disengaged from the fixed gear 35, the fixed gear 35 is not rotated, the sliding block 37 does not move downwards any more until the drill bit 42 drills the rock against the elasticity of the connecting spring 40, the utility model discloses a drilling machine, including drilling machine body, rotating wheel 16, connecting screw 15, axis of rotation 11, rotating block 52 fixedly connected with connecting screw 15 rotates connecting block 12 of connecting, connecting screw 15 is located 14 internal rotation of drilling machine body is connected with restriction piece 19, be provided with recovery unit in the restriction piece 19, recovery unit is including seting up restriction groove 18 in the restriction piece 19, connecting screw 15 is located 18 internal thread connection in restriction groove has

screw block

20, 20 downside fixedly connected with collection box 21 of screw block, electromagnetic door 23 is installed in 21 downside rotation of collection box, axis of rotation 11 rotation can drive collection box 21 rotates the drilling position, collection box 21 takes out the rock in going into the drill hole downwards.

Advantageously, the drilling device further comprises a fixed pulley 32 fixedly connected with the spline shaft 33 and positioned in the fixed groove 59, a pulley groove 50 is formed in the upper side of the fixed groove 59, a fixed shaft 46 positioned on the right side of the spline shaft 33 is rotatably matched with a wall body between the fixed groove 59 and the pulley groove 50, the fixed shaft 46 and the transmission shaft 49 are positioned in the pulley groove 50 and are in transmission connection through a pulley, the fixed shaft 46 extends downwards to the lower side of the pulley groove 50, the tail end of the fixed shaft is in power connection with a rotating motor 45 embedded in the inner wall of the fixed block 24, the fixed shaft 46 is positioned in the fixed groove 59 and is fixedly connected with a hollow block 51, a deformation groove 61 is formed in the hollow block 51, three sliding grooves 25 are communicated in an annular array in the deformation groove 61, a moving block 29 is slidably connected to the sliding groove 25, and an extending block 27 is fixedly connected to the moving block, an extension spring 28 is connected between the extension block 27 and the inner wall of the deformation groove 61, one side of the oil pipe 26 extends to the deformation groove 61, a piston compression rod 62 fixedly connected with the extension block 27 is connected in the deformation groove 61 in a sliding mode, a tension belt 31 is connected between the fixed belt wheel 32 and the belt wheel block 30, when the drill bit 42 touches hard stones during drilling, the oil pressure in the oil pipe 26 is increased, the belt wheel block 30 is stretched outwards, the rotating speed of the fixed belt wheel 32 is increased, the rotating speed of the drill bit 42 is increased, and the rocks are broken out more quickly.

Beneficially, the recycling device includes a recycling groove 22 formed in the recycling box 21, the inner wall of the upper end of the drilling machine body 14, which extends upwards from the rotating shaft 11, is connected with a power motor 10 embedded in the drilling machine body 14, the left and right walls of the cavity 17 are symmetrically and fixedly connected with abutting blocks 71, the right side of the rotating wheel 16 is fixedly connected with a stopping block 70 capable of abutting against the abutting blocks 71, when the threaded block 20 descends to the electromagnetic door 23 and is sealed by ground pressure, the electromagnetic doors 23 are energized to attract each other, then the recycling box 21 is reset to bring the broken soil to the upper end, and then the electromagnetic door 23 is de-energized, and the broken soil falls out.

The use steps herein are described in detail below with reference to fig. 1-6:

in the initial state, the recovery groove 22 is not sealed by the recovery groove 22, the connection spring 40 is in the relaxed state, the containing block 36 is engaged with the spline gear 47, the extension spring 28 is in the relaxed state, and the extension spring 28 is in the relaxed state.

When the earth needs to be drilled, the drilling machine body 14 is moved to a designated position, the rotating motor 45 is started, the belt wheel block 30 drives the fixed belt wheel 32 to rotate, the piston push rod 34 rotates to drive the containing block 36 to rotate, so that the drill bit 42 rotates, meanwhile, the fixed shaft 46 rotates to drive the transmission shaft 49 to rotate, the transmission shaft 49 drives the containing block 36 to rotate after being decelerated by the belt wheel fixed with the transmission shaft 49, so that the threaded screw rod 44 rotates, the sliding block 37 drives the containing block 36 to slowly descend, so that the drill bit 42 starts to drill the earth, when the drill bit 42 touches hard rock on the earth, the connecting spring 40 bears the pressure of the earth to the drill bit 42, so that the drill bit 42 moves upwards, the oil pressure in the oil pipe 26 increases, the moving block 29 moves outwards, the rotating speed of the fixed belt wheel 32 increases, drilling on the rock, meanwhile, the spline gear 47 is disengaged from the fixed gear 35, the fixed gear 35 does not rotate any more, so that the sliding block 37 does not move downwards any more, thereby protecting the drill bit 42, the drill bit 42 drills away rocks in the retracting stroke of the connecting spring 40 under the reset action of the connecting spring 40, at the moment, the belt wheel block 30 and the spline gear 47 reset and normal drilling is resumed, after the drilling is finished, the rotating motor 45 is reversely rotated, so that the drill bit 42 returns to the fit groove 43, then the power motor 10 is started, the rotating shaft 11 rotates to drive the connecting screw rod 15 to rotate, meanwhile, the rotating shaft 11 drives the fit block 57 to rotate, the rotating block 52 is driven to rotate under the action of the abutting block 54, at the moment, the connecting screw rod 15 rotates around the rotating block 52, autorotation while driving the screw block 20 to descend, and after the rotating, stop block 70 with support the butt of piece 71, cooperation piece 57 continues to rotate this moment, but the unable pivoted reason that continues of rotating wheel 16, butt spring 55 shrink, axis of rotation 11 continues to rotate, axis of rotation 11 drives connecting screw 15 and continues to rotate this moment, make collection box 21 stretch into in the hole of being bored out, in cooperation piece 57 rotates within three hundred sixty degrees in-process, electromagnetic door 23 butt ground makes electromagnetic door 23 close accumulator 22, thereby make broken clods all in accumulator 22, electromagnetic door 23 circular telegram attracts each other this moment, then power motor 10 reversal, thereby collection box 21 and 6 reply and keep away from the position, electromagnetic door 23 outage this moment, broken clods fall out in accumulator 22.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a protection drill bit ground drilling equipment, includes the drilling organism, its characterized in that: the drilling machine is characterized in that a cavity is formed in the drilling machine body, the upper side of the cavity is communicated with a connecting groove, the top wall of the connecting groove is rotatably matched with a rotating shaft, the lower side of the rotating shaft is rotatably connected with a rotating block, a rotating groove is formed in the rotating block, the rotating shaft is positioned in the rotating groove and fixedly connected with a matching block, a butting groove communicated with the rotating groove is formed in the rotating block, a butting block capable of butting against the matching block is slidably connected in the butting groove, a butting spring is connected between the butting block and the inner wall of the butting groove, the rotating block is positioned in the cavity and fixedly connected with a rotating wheel, the lower side of the rotating wheel is fixedly connected with a matching block, the lower side of the matching block is fixedly connected with a fixed block, a drilling device is arranged in the fixed block and comprises a matching groove with a downward opening, and, a spline shaft is rotationally matched between the fixed groove and the fit groove, the spline shaft is positioned in the fit groove, a spline connection containing block is arranged in the fit groove, the containing block is provided with a fit groove with a downward opening, a drill bit is connected in the fit groove in a sliding manner, a connecting spring is connected between the drill bit and the top wall of the fit groove, the upper side of the drill bit is communicated with one vertical side of an oil pipe, a piston ejector rod fixedly connected with the drill bit is connected in the oil pipe in a sliding manner, the upper end of the right side of the fit groove is provided with an engaging groove, a wall body between the engaging groove and the fit groove is rotationally matched with a threaded lead screw, the threaded lead screw is positioned in the fit groove, is in threaded connection with a sliding block fixedly connected with the containing block and is in sliding connection with the fit groove, the threaded lead screw is positioned in the engaging groove and is fixedly connected, a transmission shaft positioned on the right side of the threaded screw rod is rotatably matched between the belt wheel groove and the meshing groove, a spline gear meshed with the containing block is connected to the transmission shaft through a spline in the meshing groove, when the drill bit punches a hole on the ground and hits hard rocks, the upward force of the drill bit is larger than the elasticity of the connecting spring, so that the piston mandril moves upwards, the oil pressure in the oil pipe is increased, the spline gear is disengaged from the fixed gear, the fixed gear is not rotated, the sliding block does not move downwards until the drill bit drills the rocks by means of the elasticity of the connecting spring, the rotating wheel is rotatably connected with a connecting screw rod, the connecting screw rod and the rotating shaft are positioned in the connecting groove in a belt transmission manner, and the rotating block is fixedly connected with a connecting block rotatably connected with the connecting screw rod, the connecting screw rod is located the internal rotation of drilling machine is connected with the restriction piece, be provided with recovery unit in the restriction piece, recovery unit is including seting up restriction groove in the restriction piece, connecting screw rod is located restriction inslot threaded connection has the screw thread piece, screw thread piece downside fixedly connected with collection box, the collection box downside rotates installs the electromagnetic door, the axis of rotation can drive the collection box rotates the drilling position, the collection box takes out the rock in arriving the drill hole downwards.

2. A protected bit ground drilling apparatus according to claim 1, wherein: the drilling device also comprises a fixed belt wheel which is positioned in the fixed groove and fixedly connected with the spline shaft, a belt wheel groove is formed in the upper side of the fixed groove, a fixed shaft which is positioned on the right side of the spline shaft is rotatably matched with a wall body between the fixed groove and the belt wheel groove, the fixed shaft and the transmission shaft are positioned in the belt wheel groove and are in transmission connection through the belt wheel, the fixed shaft extends downwards to the lower side of the belt wheel groove, the tail end of the fixed shaft is in power connection with a rotating motor embedded in the inner wall of the fixed block, the fixed shaft is positioned in the fixed groove and is fixedly connected with a hollow block, a deformation groove is formed in the hollow block, three sliding grooves are communicated in an annular array manner in the deformation groove, a moving block is connected in a sliding manner in the sliding grooves, an extending block is fixedly connected, one side of the oil pipe extends to the deformation groove, a piston compression bar fixedly connected with the extension block is connected in the sliding groove, and a stretching belt is connected between the fixed belt wheel and the belt wheel block.

3. A protected bit ground drilling apparatus according to claim 1, wherein: the recovery device comprises a recovery groove arranged in the recovery box, the rotating shaft extends upwards to the inner wall of the upper end of the drilling machine body and is in power connection with a power motor embedded in the drilling machine body, the cavity left wall is fixedly connected with a supporting block, and the rotating wheel right side is fixedly connected with a stopping block which can be abutted against the supporting block.