CN215979197U

CN215979197U - Guide drill rod of horizontal directional drilling machine

Info

Publication number: CN215979197U
Application number: CN202022304346.4U
Authority: CN
Inventors: 张天军; 潘红宇; 张磊; 宋爽; 庞明坤; 王康; 纪翔; 郭毅; 张秀锋; 刘楠; 张硕; 李洋
Original assignee: Xi'an Qiaomu Technology Co ltd
Current assignee: Xi'an Qiaomu Technology Co ltd
Priority date: 2020-10-15
Filing date: 2020-10-15
Publication date: 2022-03-08
Anticipated expiration: 2030-10-15

Abstract

The utility model discloses a guide drill rod of a horizontal directional drilling machine, which comprises a drill bit and a drill rod matching unit, wherein reversing holes are circularly arrayed on the side surface of the drill bit, a limiting block is fixed on the left side surface of each reversing hole, a reversing control block is rotatably arranged at the right end of each reversing hole through a rotating shaft, the left side of each reversing control block is an inwards concave arc surface, the reversing control blocks and the limiting blocks are arranged in a left-right corresponding mode, backward drill wheels are rotatably connected into the outer side surface of the left half part of each reversing control block through the rotating shaft, and an arc-shaped top ring is movably inserted into the drill bit. This directional drilling rod of horizontal directional drilling machine, at first usable outside soil pick-up pump passes through drill bit and drilling rod and absorbs the drilling fluid, reduces the concentration of drilling fluid, reduces clod particle number, and then the installation of the pipeline of being convenient for, and can accomplish reaming work under the condition of not changing the drill bit, easy operation reduces staff's intensity of labour.

Description

Guide drill rod of horizontal directional drilling machine

Technical Field

The utility model relates to the technical field of horizontal directional drilling machines, in particular to a guide drill rod of a horizontal directional drilling machine.

Background

The kilometer orientation technology is characterized in that a drill bit is controlled and processed in time by utilizing the orientation deviation rectifying function of a drilling machine through the accurate measurement and automatic analysis of a measuring system, so that the drilling track is controlled, and the kilometer orientation technology is widely applied due to the advantages of long single-hole pore-forming distance, large detection range, low labor intensity and the like, and is reversed by displaying a certain included angle instead of a straight line between a bent joint and a drill rod according to technical survey reports; however, when the drill rod is used for directional drilling, the drilling fluid is a viscous fluid mixed with water and bentonite, so that a small amount of solid soil blocks and the like can be contained in the drilling fluid, the solid soil blocks are difficult to treat, and the installation of a pipeline can be hindered when the pipeline is inserted into a drill hole; when the directional drilling machine is used for reaming, the drill bit with the small aperture needs to be replaced, and then another drill bit with the large aperture needs to be replaced, so that the replacement is troublesome.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to overcome the existing defects and provide the guide drill rod of the horizontal directional drilling machine, firstly, the drilling fluid can be sucked by an external dirt suction pump through the drill bit and the drill rod, the concentration of the drilling fluid is reduced, the number of soil blocks and particles is reduced, the installation of a pipeline is further facilitated, the reaming work can be completed under the condition that the drill bit is not replaced, the operation is simple, the labor intensity of workers is reduced, and the problems in the background technology can be effectively solved.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a direction drilling rod of horizontal directional drilling machine, includes drill bit and drilling rod cooperation unit, the circular array in drill bit side has arranged the switching-over hole, the left surface in switching-over hole is fixed with the stopper, the right-hand member in switching-over hole is rotated through the pivot and is connected with the switching-over control block, the left side of switching-over control block sets up to indent arc surface, the switching-over control block corresponds the setting with the stopper about, rotate through the pivot in the first half outside of switching-over control block and be connected with backward drill wheel, the inside activity interlude of drill bit has the arc top circle, the arc top circle corresponds the setting with the switching-over control block about, the circular array in right-hand member side of drill bit has arranged the drill groove, the right side of drill bit is fixed with preceding accessory block, circular array has arranged the second circulation hole between preceding accessory block and the drill bit, the circular array in side of preceding accessory block has arranged leading drilling rod, and friction increasing grooves are arranged on the outer side surface of the front drill rod in an arc array.

When the hole is drilled for the first time, the reversing control block is positioned in the reversing hole, the drill bit and the front drill rod drill holes, and when the hole is expanded, the arc-shaped top ring pushes the reversing control block outwards to enable the reversing control block and the rear drill wheel to perform reverse hole expansion, so that the processes of primary drilling and hole expansion can be completed under the condition that the drill bit of the drilling machine is not replaced; the drill rod matching unit comprises a first external connecting pipe, a second external connecting pipe, a connecting rod, a first transmission pipe, a second transmission pipe, a first internal connecting pipe and a second internal connecting pipe, the right end of the second internal connecting pipe is movably inserted into the right side of the interior of the drill bit, the left end of a second circulation hole is positioned in the second internal connecting pipe, the first internal connecting pipe is movably inserted through the left end of the drill bit, first circulation holes are arranged in a circular array between the first internal connecting pipe and the drill bit, the first internal connecting pipe penetrates through the arc top ring, the second internal connecting pipe is positioned in the first internal connecting pipe, the first transmission pipe is sleeved with the left end external thread of the first internal connecting pipe, the second transmission pipe is sleeved with the left end external thread of the second internal connecting pipe, the connecting rod is arranged between the left end of the second external connecting pipe and the left end of the first transmission pipe, carry out hydrojet and imbibition in turn through first circulation hole and second circulation hole, when tentatively drilling, guarantee that water is preferential to be drenched the soil layer in front of the front appendage, when the reaming backward, guarantee that water is preferential to be drenched the soil layer to the drilling wheel rear for drilling is convenient.

Further, still including embedded screw post and cooperation piece, the left end of embedded screw post is fixed with the cooperation piece, embedded screw post and cooperation piece screw thread pass the right half side of front attached piece, can cooperate leading drilling rod through the cooperation piece and carry out preliminary punching.

Furthermore, the drilling fluid sucking device further comprises a gettering hole, the circular array is arranged on the side face of the first transmission pipe, and the drilling fluid outside the first transmission pipe can be sucked through the gettering hole.

Furthermore, the device also comprises a hook which is fixed on the right side of the embedded threaded column, and the pipeline can be connected through the hook in a pulling way.

Furthermore, the reversing control block further comprises a sealing rubber plate which is fixed on the side surface of the lower half part of the reversing control block, and the sealing performance of the reversing control block and the reversing hole is improved through the sealing rubber plate.

Furthermore, the reversing control block further comprises a sealing block which is fixed at the lower end of the left side face of the reversing control block, the sealing performance of the reversing control block and the reversing hole is further improved through the sealing block, and the stability that the limiting block supports and presses the reversing control block is guaranteed.

Furthermore, the drill bit device also comprises a reversing plate which is fixed on the side surface of the drill bit, the thickness dimension of the left end of the reversing plate is larger than that of the right end of the reversing plate, and the drilling direction of the drill bit can be changed when the drill bit is pushed to move right without rotating the drill bit through the reversing plate.

Compared with the prior art, the utility model has the beneficial effects that: the guide drill rod of the horizontal directional drilling machine has the following advantages:

1. when punching for the first time, the switching-over control block is located the switching-over downthehole, drill bit and leading drilling rod drill this moment, when carrying out reaming, the switching-over control block is moved to the outside top of arc top ring, make switching-over control block and carry out reverse reaming to the drilling wheel, can accomplish preliminary drilling and reaming process under the condition of not changing the drilling machine drill bit, carry out hydrojet and imbibition in turn through first circulation hole and second circulation hole, when preliminary drilling, guarantee that water is preferential to be drenched the soil layer in front of the preceding accessory block, when backward reaming, guarantee that water is preferential to be drenched the soil layer to drilling wheel rear, make drilling convenient.

2. The drilling fluid outside the first transmission pipe can be sucked through the gettering hole, the drill block can be matched with the front drill rod to perform preliminary punching through matching, the pipeline can be connected through a hook in a pulling mode, the sealing performance of the reversing control block and the reversing hole is improved through the sealing rubber plate, the sealing performance of the reversing control block and the reversing hole is further improved through the sealing block, the stability of the limiting block abutting against the reversing control block is guaranteed, and the drilling direction of the drill bit can be changed when the drill bit is pushed to move right without rotating the drill bit through the reversing plate.

3. This directional drilling rod of horizontal directional drilling machine, at first usable outside soil pick-up pump passes through drill bit and drilling rod and absorbs the drilling fluid, reduces the concentration of drilling fluid, reduces clod particle number, and then the installation of the pipeline of being convenient for, and can accomplish reaming work under the condition of not changing the drill bit, easy operation reduces staff's intensity of labour.

Drawings

FIG. 1 is a schematic structural view of a pilot drill rod of the horizontal directional drilling machine of the present invention;

FIG. 2 is a left side view schematic of the pilot drill stem of the horizontal directional drilling machine of the present invention;

FIG. 3 is a schematic cross-sectional view taken along line A-A of the present invention.

In the figure: the device comprises a reversing control block 1, a backward drilling wheel 2, a first circulation hole 3, a drill bit 4, a drill rod 5 matching unit, a first external connection pipe 51, a second external connection pipe 52, a connecting rod 53, a first transmission pipe 54, a second transmission pipe 55, a first internal insertion pipe 56, a second internal insertion pipe 57, a foreign absorption hole 6, a reversing plate 7, a drilling groove 8, a second circulation hole 9, an embedded threaded column 10, a hook 11, a friction-increasing groove 12, a front drill rod 13, an attached block 14, a reversing hole 15, a sealing rubber plate 16, an arc top ring 17, a matching drill block 18, a limiting block 19 and a sealing block 20.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution:

the first embodiment is as follows: a guide drill rod of a horizontal directional drilling machine comprises a drill bit 4 and a drill rod matching unit 5; reversing holes 15 are arranged in a circular array on the side surface of the drill bit 4, a limiting block 19 is fixed on the left side surface of each reversing hole 15, the right end of each reversing hole 15 is rotatably connected with a reversing control block 1 through a rotating shaft, the left side of each reversing control block 1 is arranged to be an inwards concave arc surface, each reversing control block 1 and the limiting block 19 are arranged in a left-right corresponding mode, a backward drill wheel 2 is rotatably connected into the outer side surface of the left half part of each reversing control block 1 through the rotating shaft, an arc-shaped top ring 17 is movably inserted in each drill bit 4, the arc-shaped top ring 17 and the reversing control block 1 are arranged in a left-right corresponding mode, drill grooves 8 are arranged in a circular array on the side surface of the right end of each drill bit 4, a front attachment block 14 is fixed on the right side of each drill bit 4, second circulating holes 9 are arranged in a circular array between each front attachment block 14 and each drill bit 4, front drill rods 13 are arranged in a circular array on the side surface of each front attachment block 14, friction increasing grooves 12 are arranged in an arc array on the outer side surface of each front drill rod 13, when punching for the first time, the reversing control block 1 is located the different hole 15 of switching-over, and drill bit 4 and leading drilling rod 13 bore holes this moment, and when carrying out the reaming, the switching-over control block 1 is moved to outside top of arc top ring 17, makes switching-over control block 1 and backward drill wheel 2 carry out reverse reaming, can accomplish preliminary drilling and reaming process under the condition of not changing the rig drill bit.

The drill rod matching unit 5 comprises a first external connecting pipe 51, a second external connecting pipe 52, a connecting rod 53, a first transmission pipe 54, a second transmission pipe 55, a first internal inserting pipe 56 and a second internal inserting pipe 57, wherein the right end of the second internal inserting pipe 57 is movably inserted into the right side inside the drill head 4, the left end of the second circulating hole 9 is positioned in the second internal inserting pipe 57, the first internal inserting pipe 56 movably penetrates through the left end of the drill head 4, first circulating holes 3 are circularly arrayed between the first internal inserting pipe 56 and the drill head 4, the first internal inserting pipe 56 penetrates through the arc-shaped top ring 17, the second internal inserting pipe 57 is positioned in the first internal inserting pipe 56, the first transmission pipe 54 is sleeved on the left end external thread of the first internal inserting pipe 56, the second transmission pipe 55 penetrates through the left end internal thread of the second internal inserting pipe 57, the second external thread 52 is sleeved on the left end of the first transmission pipe 54, the first external thread is sleeved on the left end of the second transmission pipe 55, the left external dimension of the first transmission pipe 54 is equal to the right internal dimension, the left internal dimension of the second transmission pipe 55 is equal to the right external dimension, the connecting rod 53 is arranged between the left end of the second transmission pipe 55 and the left end of the first transmission pipe 54, liquid spraying and liquid absorbing are alternately carried out through the first circulation holes 3 and the second circulation holes 9, during preliminary drilling, it is ensured that water preferentially wets the soil layer in front of the front attachment block 14, during backward reaming, it is ensured that water preferentially wets the soil layer behind the drill wheel 2, so that drilling is convenient, and as the left external diameter dimension of the first transmission pipe 54 is equal to the right internal diameter dimension, and the left internal diameter dimension of the second transmission pipe 55 is equal to the right external diameter dimension, the plurality of first transmission pipes 54 can be in threaded connection with one another, the plurality of second transmission pipes 55 can be in threaded connection with one another, so as to increase the number of the first transmission pipes 54 and the second transmission pipes 55, thereby carrying out remote drilling, the drilling fluid sucking device further comprises a gettering hole 6, wherein the gettering hole 6 is arranged on the side face of the first transmission pipe 54 in a circular array mode, and drilling fluid outside the first transmission pipe 54 can be sucked through the gettering hole 6.

Example two:

the difference between this embodiment and the first embodiment is:

in this embodiment, still including embedded screw post 10 and cooperation piece 18, the left end of embedded screw post 10 is fixed with cooperation piece 18, and embedded screw post 10 and the right half side of cooperation piece 18 screw thread through preceding accessory block 14 can cooperate leading drilling rod 13 to carry out preliminary punching through cooperation piece 18, still including couple 11, fix on the right side of embedded screw post 10, can draw the pipeline through couple 11.

Example three:

the difference between this embodiment and the second embodiment is:

in this embodiment, still include the sealing rubber board 16, fix in the lower half side of switching-over control block 1, increase the leakproofness of switching-over control block 1 and switching-over hole 15 through sealing rubber board 16, still include sealing block 20, fix the left surface lower extreme at switching-over control block 1, further increase the leakproofness of switching-over control block 1 and switching-over hole 15 through sealing block 20, and guarantee the stability that stopper 19 supports and presses switching-over control block 1, still include reversing plate 7, fix in the side of drill bit 4, its left end thickness size is greater than right-hand member thickness size, can change the drilling direction of drill bit 4 when not rotating drill bit 4 but promoting drill bit 4 to move to the right through reversing plate 7.

The utility model also comprises a construction method of the guide drill rod of the horizontal directional drilling machine, which comprises the following steps:

1) the first external connecting pipe 51 and the second external connecting pipe 52 are rotatably arranged in an external water channel pipeline, and a power device of the drilling machine drives the first external connecting pipe 51 and the second external connecting pipe 52 to rotate and move left and right, so that the whole equipment rotates and moves left and right;

2) during preliminary reaming, leading drilling rod 13, drill way 8 and cooperation piece 18 mutually support and carry out the drilling left, first external pipe 51 is intake, second external pipe 52 absorbs water, when carrying out the reaming, the switching-over control block 1 is moved in outside top of arc top ring 17, switching-over control block 1 and back drill wheel 2 carry out the drilling right, second external pipe 52 is intake, first external pipe 51 absorbs water, and when the reaming, couple 11 articulates the pipeline, make reaming and installation pipeline go on simultaneously.

When in use: when primary drilling is carried out, the second external connecting pipe 52 pushes the first transmission pipe 54 rightwards, the first external connecting pipe 51 pushes the second transmission pipe 55 rightwards, the first transmission pipe 54 drives the first internal connecting pipe 56 to move rightwards, the second transmission pipe 55 drives the second internal connecting pipe 57 to move rightwards, the second internal connecting pipe 57 drives the drill bit 4 to move rightwards, at the moment, the arc-shaped top ring 17 does not abut against the sealing rubber plate 16, the reversing control block 1 is pushed into the reversing special-shaped hole 15 by an external stratum, the hook 11 is positioned in the front attached block 14, the matched drill block 18 is positioned outside the front attached block 14, when the drill bit 4 rotates, the matched drill block 18, the front drill rod 13 and the drill groove 8 are used for drilling, at the moment, water sequentially passes through the first external connecting pipe 51, the second transmission pipe 55, the second internal connecting pipe 57, the second circulation hole 9, an external soil layer, the first circulation hole 3, the first internal connecting pipe 56, the first transmission pipe 54 and the second external connecting pipe 52, and water preferentially wets soil in front of the front attached block 14, the water flow forcibly draws the clods of the formation out of the first circulation holes 3.

When reaming is carried out, the first external connecting pipe 51 and the second external connecting pipe 52 are pulled leftwards, the arc-shaped top ring 17 is further enabled to outwards push the sealing rubber plate 16, the reversing control block 1 is further enabled to move out of the reversing hole 15, the sealing block 20 and the reversing control block 1 abut against the limiting block 19, at the moment, the reversing control block 1 and the backward drill wheel 2 jointly drill holes, and therefore reaming is carried out, at the moment, the hook 11 is located outside the front attached block 14, the matched drill block 18 is located in the front attached block 14, the hook 11 is connected with an external pipeline in a hanging mode, so that the pipeline is laid while reaming is carried out, at the moment, water flows through the second external connecting pipe 52, the first transmission pipe 54, the first internal connecting pipe 56, the first circulating hole 3, an external soil layer, the second circulating hole 9, the second internal connecting pipe 57, the second transmission pipe 55 and the first external connecting pipe 51 in sequence, and water preferentially wets the soil layer drilled into the backward drill wheel 2 and the reversing control block 1.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A guide drill rod of a horizontal directional drilling machine is characterized in that: including drill bit (4) and drilling rod cooperation unit (5), the circular array in drill bit (4) side has arranged switching-over hole (15), the left surface in switching-over hole (15) is fixed with stopper (19), the right-hand member in switching-over hole (15) has switching-over control block (1) through the pivot rotation, the left side of switching-over control block (1) sets up to indent arc surface, switching-over control block (1) corresponds the setting with stopper (19) left and right sides, it is connected with backward drill wheel (2) through the pivot rotation in the first left side lateral surface of switching-over control block (1), the inside activity interlude of drill bit (4) has arc top circle (17), arc top circle (17) corresponds the setting with switching-over control block (1) left and right sides, the circular array in right-hand member side of drill bit (4) has arranged drill groove (8), the right side of drill bit (4) is fixed with preceding accessory block (14), second circulation holes (9) are arranged between the front auxiliary block (14) and the drill bit (4) in a circular array mode, front drill rods (13) are arranged on the side faces of the front auxiliary block (14) in a circular array mode, and friction increasing grooves (12) are arranged on the outer side faces of the front drill rods (13) in an arc array mode;

the drill rod matching unit (5) comprises a first external connecting pipe (51), a second external connecting pipe (52), a connecting rod (53), a first transmission pipe (54), a second transmission pipe (55), a first inner inserting pipe (56) and a second inner inserting pipe (57), the right end of the second inner inserting pipe (57) is movably inserted into the right side of the interior of the drill bit (4), the left end of a second circulating hole (9) is positioned in the second inner inserting pipe (57), the first inner inserting pipe (56) movably penetrates through the left end of the drill bit (4), first circulating holes (3) are distributed in a circular array between the first inner inserting pipe (56) and the drill bit (4), the first inner inserting pipe (56) penetrates through the arc-shaped top ring (17), the second inner inserting pipe (57) is positioned in the first inner inserting pipe (56), the first transmission pipe (54) is sleeved on the left end of the first inner inserting pipe (56) in a male thread manner, and the second transmission pipe (55) penetrates through the left end of the second inner inserting pipe (57), a second external connecting pipe (52) is sleeved on the left end external thread of the first transmission pipe (54), a first external connecting pipe (51) is sleeved on the left end internal thread of the second transmission pipe (55), and a connecting rod (53) is arranged between the left end of the second transmission pipe (55) and the left end of the first transmission pipe (54);

the drilling tool is characterized by further comprising an embedded threaded column (10) and a matched drilling block (18), wherein the matched drilling block (18) is fixed at the left end of the embedded threaded column (10), and the threads of the embedded threaded column (10) and the matched drilling block (18) penetrate through the right half side face of the front attached block (14).

2. The guide drill rod of a horizontal directional drilling machine as claimed in claim 1, wherein: the device also comprises a gettering hole (6) which is arranged on the side surface of the first transmission pipe (54) in a circular array.

3. The guide drill rod of a horizontal directional drilling machine as claimed in claim 1, wherein: the novel screw column is characterized by further comprising a hook (11) fixed on the right side of the embedded screw column (10).

4. The guide drill rod of a horizontal directional drilling machine as claimed in claim 1, wherein: the reversing control block also comprises a sealing rubber plate (16) which is fixed on the side surface of the lower half part of the reversing control block (1).

5. The guide drill rod of a horizontal directional drilling machine as claimed in claim 1, wherein: the reversing control block also comprises a sealing block (20) which is fixed at the lower end of the left side surface of the reversing control block (1).

6. The guide drill rod of a horizontal directional drilling machine as claimed in claim 1, wherein: the drill bit is characterized by further comprising a reversing plate (7) fixed on the side face of the drill bit (4), and the thickness of the left end of the reversing plate is larger than that of the right end of the reversing plate.