Rotary horizontal directional drilling machine for synchronously forming channels
By introducing a reverse-rotating forming drum into the horizontal drilling rig, the instability of the channel drilling out of the auger bit is solved, the synchronous forming and stability of the channel is achieved, the drop and accumulation of mud blocks and sand is reduced, and the drilling efficiency and service life of the channel are improved.
Patent Information
- Application Number
- CN202510500105.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2025-06-06
AI Technical Summary
The channels drilled out by the auger drill bit alone cannot be completely stable. The mud, sand, etc. on the inner wall of the channel are prone to fall into the channel and accumulate on the pipelines and optical cables, causing excessive resistance to the pipelines and optical cables.
A rotating horizontal directional drill rig with synchronous molding is adopted. By providing a reverse-rotating forming drum behind the auger drill bit, the drilled channel is further extruded and opened to form a more stable channel.
Through the reverse rotation of the forming drum and the cutting groove design with wide outside and narrow inside, the raised mud blocks on the inner wall of the passage are cut and smoothed to form a smooth and stable circular channel, reducing the risk of landslide and preventing the passage from deformation through continuous radial pressure.
Smart Images
Figure CN120100318A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of horizontal drilling machines, and in particular to a rotary horizontal directional drilling machine with synchronous channel forming. Background Art
[0002] A horizontal drilling rig is a device that uses a drilling rig to drill holes underground without excavating the surface. It is generally used to lay a variety of underground public facilities, such as pipelines, cables, optical cables, etc., and can be constructed in most non-hard rock areas in my country.
[0003] Horizontal drilling rigs have the characteristics of fast construction speed and low cost.
[0004] In construction environments such as mines, horizontal drilling rigs also have a lot of room for utilization.
[0005] Most of the current horizontal drilling rigs use spiral drill bits to carry pipelines, optical cables, etc. and move forward underground. When the spiral drill bit drills a hole, it is also necessary to spray water to soften the soil at the drilling location. After the drill bit drills through, the spiral drill bit will continue to drill the soil and thus continue to stir the mud. However, the channel drilled by the spiral drill bit alone cannot be completely stable, making it easy for mud, sand, etc. on the inner wall of the channel to fall into the channel and accumulate on the pipelines and optical cables. When the channel is too long, too much material will accumulate on the pipelines and optical cables, causing excessive resistance to the pipelines and optical cables. Summary of the invention
[0006] The present invention provides a rotary horizontal directional drilling machine with synchronous channel forming, so that when a spiral drill is used to drill a channel, a reverse rotating drum is used behind the spiral drill to help the drilled channel to be further squeezed, expanded and formed, so that the channel is more stable, thereby solving the problems raised in the above-mentioned background technology, namely:
[0007] The channel drilled by the spiral drill bit alone cannot be completely stable. Mud, sand and stones on the inner wall of the channel are easy to fall into the channel and accumulate on the pipes and optical cables, thereby causing excessive resistance to the pipes and optical cables.
[0008] In order to achieve the above-mentioned object, the present invention provides a rotary horizontal directional drilling machine with synchronous channel forming, comprising a basic moving mechanism and a wire body control structure arranged on the basic moving mechanism, and also comprising a drill bit assembly, a channel forming member and a synchronous driving member connected in sequence, wherein one side of the synchronous driving member is connected to the wire body to be laid;
[0009] The synchronous driving member includes a mounting base and a driving gear set arranged inside the mounting base, and the synchronous driving member also includes a driving assembly, the mounting base is a conical mounting base, and a guide groove is opened on the conical outer wall of the mounting base, the driving assembly is arranged at one end of the inner side of the mounting base, and the driving assembly drives the driving gear set to rotate, and the driving gear set includes a gear set 1 and a gear set 2 that rotate in opposite directions;
[0010] Wherein, the gear set 1 and the gear set 2 are both connected to the output end of the driving assembly;
[0011] The channel forming member includes a forming rotating cylinder connected to the second output end of the gear set, and the other end of the forming rotating cylinder is provided with an opening and a cutting groove;
[0012] The drill bit assembly comprises a drill rod and a drill bit body arranged at the end of the drill rod, and the other end of the drill rod passes through the forming rotary cylinder and the mounting base and is connected to an output end of the gear set;
[0013] The forming drum rotates in the opposite direction behind the moving path of the drill body to open and smooth the drilled channel.
[0014] As a further improvement of the technical solution, the molding drum is provided with an annular material guide opening at one side edge close to the synchronous driving member, and the channel molding member further comprises a material guide vane and an outer rotating vane, both of which are arranged around the outside of the drill rod, and the material guide vane is located on the inside of the molding drum, and the outer rotating vane is located on the inside of the opening of the molding drum;
[0015] The outer rotating blade and the material guiding rotating blade form a continuous material guiding path inside the forming drum.
[0016] On this basis, the blade width of the material guiding vane decreases gradually in the forming drum;
[0017] The cutting groove edge of the forming drum is provided with carbide cutting teeth, the surface of the outer rotating sheet is provided with spiral flow guiding lines, and the cutting groove at the opening of the forming drum is an annular groove body which is wide outside and narrow inside.
[0018] In the above technical solution, through the reverse rotation of the forming drum and the design of the cutting groove that is wide on the outside and narrow on the inside, it is possible to not only cut the raised mud blocks on the inner wall of the channel, but also smooth the inner wall of the channel through rotational friction, forming a smooth and stable circular channel and reducing the risk of landslides. In addition, the reverse rotation of the forming drum behind the drill bit generates continuous radial pressure on the channel, effectively expanding and compacting the inner wall of the channel, and preventing deformation of the channel due to soil rebound.
[0019] As a further improvement of the present technical solution, the drill bit assembly includes a drill tool body and a material guide channel. The drill tool body is composed of a drill bit body and a drill rod, and is a spiral forward drilling tool. The material guide channel is opened on the inner side of the drill bit part of the drill bit body, and the discharge end of the material guide channel is facing the outer rotating plate. The drill tool body also includes a built-in water spray mechanism, and its nozzles are evenly distributed along the circumference of the drill bit body.
[0020] In this technical solution, the material guide channel of the drill bit assembly and the material guide vane and outer rotating vane of the forming drum form a coordinated material discharge path to quickly discharge the front mud and avoid mud accumulation affecting the drilling efficiency.
[0021] In another technical solution, the wire control structure includes an angle adjustment mechanism and a guide assembly. The angle adjustment mechanism is a platform that adjusts its posture through hydraulics. The guide assembly is arranged on the regulating end of the angle adjustment mechanism. The guide assembly includes a wire placement platform and a wire threading ring platform, both of which are provided with coaxial lead-in grooves.
[0022] Compared with the prior art, the present invention provides a rotary horizontal directional drilling rig with synchronous channel forming, which has the following features:
[0023] Beneficial effects:
[0024] The present invention utilizes a driving assembly to drive gear set 1 and gear set 2 to rotate in opposite directions, thereby driving the drill rod and the forming rotary drum to rotate in opposite directions. At this time, the drill bit body at the end of the drill rod will drill a hole underground and move forward in a rotating state. At this time, the forming rotary drum continues to rotate behind the moving path of the drill bit body, and the inner wall of the drilled channel is expanded and smoothed to form a smooth and stable circular channel, thereby preventing mud and sand from falling and affecting the forward movement and laying of the line body.
[0025] In addition, the material guide channel and the forming drum cooperate with each other, and the material guide vanes and outer rotating vanes on the inner side of the forming drum are used to form a coordinated material discharge path to quickly discharge the front-end mud and avoid mud accumulation that affects drilling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;
[0027] Figure 2 It is a structural schematic diagram of the wire body to be laid in the present invention passing through the guide assembly and connecting the drill mechanism;
[0028] Figure 3 It is a structural cross-sectional view of the drill bit mechanism in the present invention;
[0029] Figure 4 It is a schematic diagram of the connection between the forming drum, the drill rod and the synchronous driving member in the present invention;
[0030] Figure 5This is a structural distribution diagram of the material guide rotary blade, the outer rotary blade and the drill rod in the forming rotary drum of the present invention;
[0031] Figure 6 It is a schematic diagram of the connection between the drill bit mechanism and the line body in the present invention;
[0032] Figure 7 It is a schematic diagram of the drill bit mechanism after the drill bit assembly of the present invention is separated;
[0033] Figure 8 It is a schematic diagram of the drill bit mechanism after the drill bit body and the drill rod are separated in the present invention;
[0034] Fig. 9 It is a schematic diagram of the structural distribution of the drill bit body, the material guide channel and the outer rotating piece in the present invention.
[0035] In the figure: 1. Angle adjustment mechanism; 2. Guide assembly; 21. Wire placement platform; 22. Threading ring platform; 3. Drill assembly; 31. Drill tool body; 311. Drill body; 312. Drill rod; 32. Material guide channel; 4. Channel forming part; 41. Forming drum; 42. Material guide rotary vane; 43. External rotary vane; 5. Synchronous drive member; 51. Mounting base; 511. Guide groove; 52. Drive assembly; 53. Drive gear set; 531. Gear set one; 532. Gear set two. DETAILED DESCRIPTION
[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0037] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 The present invention provides a rotary horizontal directional drilling rig with synchronous channel forming. In order to further open the channel drilled by the drill bit and help the channel to be formed, so as to make the channel more stable and prevent mud and sand on the inner wall of the channel from falling and accumulating on the pipeline and cables and affecting the movement of the pipeline and cables, a basic moving mechanism and an angle adjustment mechanism 1 arranged on the basic moving device are arranged here. The angle adjustment mechanism 1 is a platform for adjusting the posture by hydraulic pressure. A guide component 2 for guiding the pipeline, cable and other wire bodies is arranged on the regulating end of the angle adjustment mechanism 1. The basic moving mechanism is a tracked vehicle as the basis, which will not be described in detail here. The angle adjustment mechanism 1 and the guide component 2 together form a wire body control structure, which can help adjust the angle of the laying wire body to the ground and guide the wire body to move forward into the ground.
[0038] It also includes a drill mechanism, which includes a drill assembly 3, a channel forming member 4 and a synchronous driving member 5. The drill assembly 3, the channel forming member 4 and the synchronous driving member 5 are arranged in sequence, and one side of the synchronous driving member 5 is connected to a line body such as a pipeline and a cable.
[0039] like Figure 4 and Fig. 9 As shown, the drill bit assembly 3 includes a drill tool body 31 and a material guide channel 32. The drill tool body 31 is a spiral forward drill tool. The material guide channel 32 is opened on the inner side of the drill bit part of the drill tool body 31, so that the mud drilled by the drill bit can be introduced into the rear of the drill bit through the material guide channel 32 to prevent the mud from being unable to be discharged in time when the drill tool is drilling a hole, thereby affecting the drilling rate.
[0040] The channel forming member 4 includes a forming drum 41 . One end of the forming drum 41 is connected to the synchronous driving member 5 and is rotatably installed, and the other end of the forming drum 41 is provided with an opening.
[0041] like Figure 4 and Figure 8 As shown, the drill tool body 31 includes a drill bit body 311 and a drill rod 312. The drill bit body 311 is arranged at the end of the drill rod 312, and the other end of the drill rod 312 passes through the forming rotary cylinder 41 and is connected to the synchronous driving member 5. The drill tool body 31 also includes a built-in water spraying mechanism, and the nozzles are evenly distributed along the circumference of the drill bit body 311 to provide water for the drilling position of the drill bit body 311 to help drill the soil.
[0042] The drill rod 312 coincides with the central axis of the forming drum 41 , so that the drill rod 312 and the forming drum 41 rotate coaxially.
[0043] The channel forming member 4 also includes a material guide vane 42 and an outer rotating vane 43, both of which are arranged around the outside of the drill rod 312, and the material guide vane 42 is located on the inside of the forming drum 41, and the outer rotating vane 43 is located on the inside of the opening of the forming drum 41. An annular material guide port is provided on the edge of one side of the forming drum 41 close to the synchronous drive member 5, so that when the material guide vane 42 rotates with the drill rod 312, the mud, sand and gravel on the inside of the forming drum 41 can be guided and discharged through the material guide port.
[0044] like Figure 3 As shown, the blade width of the material guiding vane 42 decreases in the forming drum 41 , the closer the material guiding vane 42 is to the material guiding port, the larger the blade width is, and the closer the blade width is to the opening of the forming drum 41 , the smaller the blade width is.
[0045] It should be clear that since the blade width of the guide vane 42 at the opening of the forming drum 41 is small, more mud can be rotated into the opening of the forming drum 41 at the same time. When guided by the vane, the mud is affected by the gradually increasing blade width. As the blade width increases, the mud passes through a smaller space and its speed increases. When it is discharged through the guide port, it can be discharged at a faster speed, preventing the mud from being blocked by the original mud in the channel and unable to be discharged smoothly due to insufficient speed.
[0046] like Figure 4 As shown, a plurality of circumferential cutting grooves are provided at the opening of the forming drum 41, and the cutting grooves are grooves that are wide on the outside and narrow on the inside, so that when the forming drum 41 rotates, its opening forms a rotating cutting effect, thereby helping the forming drum 41 to cut mud, sand, and the like on the inner wall of the channel when rotating. In addition, the rotating forming drum 41 can also form a smoothing effect, which helps to open the channel while smoothing mud and the like on the inner wall of the channel, forming a smoother channel. The edges of the cutting grooves of the forming drum 41 are provided with carbide cutting teeth, and the surface of the outer rotating sheet 43 is provided with spiral guide lines. The outer rotating sheet 43 is located on the inner side of the opening of the forming drum 41, and can guide the mud, sand, and stones into the interior of the forming drum 41 through the outer rotating sheet 43 after the cutting grooves cut them, and then be guided by the guide vanes 42 to be discharged from the discharge port of the forming drum 41.
[0047] like Figure 4 As shown, the synchronous drive member 5 includes a mounting base 51, a drive assembly 52 and a drive gear set 53. The mounting base 51 is a conical base. The conical outer wall of the mounting base 51 is provided with a guide groove 511, so that the mud flowing through the outer wall of the mounting base 51 can be guided to slide out. The drive assembly 52 is arranged at one end of the inner side of the mounting base 51, and the drive gear set 53 is arranged at the inner center of the mounting base 51, and the drive assembly 52 drives the drive gear set 53 to rotate. A mud pressure monitoring module is arranged in the mounting base 51, and the module communicates with the ground control system in real time through a wireless transmission unit.
[0048] Among them, Figure 4 and Figure 5 As shown, the driving gear set 53 includes a gear set 1 531 and a gear set 2 532, both of which are connected to the output end of the driving assembly 52, and the driving ends of the gear set 1 531 and the gear set 2 532 rotate in opposite directions, the drill rod 312 passes through the end of the mounting base 51 and is connected to the output end of the gear set 1 531, and one end of the forming drum 41 passes through the end of the mounting base 51 and is connected to the output end of the gear set 2 532, so that the drill rod 312 and the forming drum 41 rotate in opposite directions.
[0049] like Figure 6 and Figure 7As shown, the outer wall of the mounting base 51 is provided with connecting buckles for connecting pipelines, optical cables, electrical cables and other wires.
[0050] like Figure 2 As shown, the guide assembly 2 includes a wire placement platform 21 and a wire threading ring platform 22, both of which are arranged on the regulating end of the angle adjustment mechanism 1, and coaxial wire lead-in grooves are provided on the top surface of the wire placement platform 21 and the body of the wire threading ring platform 22, so that wires such as pipelines, optical cables, and electrical cables can be passed through the wire lead-in grooves of the wire placement platform 21 and the wire threading ring platform 22 and connected to the connecting buckle of the mounting base 51.
[0051] Working principle: The wires to be laid, such as pipelines, optical cables, and electric cables, are passed through the wire grooves of the top surface of the wire-laying platform 21 and the wire-threading ring platform 22, and connected to the connecting buckle of the mounting base 51. At this time, the angle of the wire is adjusted by the angle adjustment mechanism 1, so that the entire drill mechanism is in contact with the ground, and the drive assembly 52 is started. The drill rod 312 and the forming drum 41 are driven to rotate in opposite directions through the gear set 1 531 and the gear set 2 532 respectively. At this time, the drill body 311 at the end of the drill rod 312 will move forward while drilling the ground. Following the forward movement of the drill body 311, the entire drill mechanism enters the ground. At this time, the drill body 311 is continuously rotated in, and the mud stirred by the drill body 311 will enter the rear forming drum 41 along the guide channel 32, and the guide rotary blade 42 and the outer rotary blade 44 on the inner side of the forming drum 41 are As the drill rod 312 rotates, mud, mud blocks, sand and stones can be guided out through the guide port on the other side of the forming drum 41. The drill bit body 311 rotates inward to form a basic channel. The forming drum 41 rotates in the opposite direction following the drill bit body 311. The inner wall of the basic channel is rotated and cut by the cutting groove at the opening of the forming drum 41 to remove the protruding mud blocks, sand and stones. At the same time, the rotating forming drum 41 can help to open the basic channel and form a smoothing effect on the inner wall of the channel, which helps to shape and stabilize the channel. As the drill bit body 311 and the forming drum 41 continue to rotate inward, a stable circular channel is formed behind the path, which is convenient for laying the pipelines, optical cables, cables and other wires carried by the installation base 51 behind, and can also prevent the mud blocks, sand and stones in the channel from falling and accumulating and affecting the continuous forward movement of the wires.
[0052] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.
Claims
1. A rotary horizontal directional drilling rig with synchronous channel forming, comprising a basic moving mechanism and a line control structure arranged on the basic moving mechanism, characterized in that: Also includes: A drill bit assembly (3), a channel forming member (4) and a synchronous driving member (5) connected in sequence, wherein one side of the synchronous driving member (5) is connected to a wire body to be laid; The synchronous driving member (5) comprises a mounting base (51) and a driving gear set (53) arranged inside the mounting base (51), wherein the driving gear set (53) comprises a gear set 1 (531) and a gear set 2 (532) rotating in opposite directions; The channel forming member (4) comprises a forming rotating cylinder (41) connected to the output end of the second gear set (532), and the other end of the forming rotating cylinder (41) is provided with an opening and a cutting groove; The drill bit assembly (3) comprises a drill rod (312) and a drill bit body (311) arranged at the end of the drill rod (312); the other end of the drill rod (312) passes through the forming rotating cylinder (41) and the mounting base (51) and is connected to the output end of the gear set 1 (531); The forming drum (41) rotates in the opposite direction behind the moving path of the drill bit body (311) to open and smooth the drilled channel.
2. A rotary horizontal directional drilling rig with synchronous channel forming according to claim 1, characterized in that: The synchronous driving member (5) further comprises a driving assembly (52), the mounting base (51) is a conical mounting base, the driving assembly (52) is arranged at one end inside the mounting base (51), and the driving assembly (52) drives the driving gear set (53) to rotate; Wherein, the gear set 1 (531) and the gear set 2 (532) are both connected to the output end of the driving component (52).
3. A rotary horizontal directional drilling rig with synchronous channel forming according to claim 1, characterized in that: The molding drum (41) is provided with an annular material guide opening at one side edge close to the synchronous driving member (5), and the channel molding member (4) further comprises a material guide rotary blade (42) and an outer rotary blade (43), the material guide rotary blade (42) and the outer rotary blade (43) are both arranged around the outside of the drill rod (312), and the material guide rotary blade (42) is located on the inside of the molding drum (41), and the outer rotary blade (43) is located on the inside of the opening of the molding drum (41); The outer rotating blade (43) and the material guiding rotating blade (42) form a continuous material guiding path inside the forming drum (41).
4. A rotary horizontal directional drilling machine with synchronous channel forming according to claim 3, characterized in that: The blade width of the material guiding vane (42) decreases gradually in the forming drum (41).
5. The rotary horizontal directional drilling machine with synchronous channel forming according to claim 3, characterized in that: The cutting groove edge of the forming drum (41) is provided with hard alloy cutting teeth, and the surface of the outer rotating sheet (43) is provided with spiral flow-guiding patterns.
6. A rotary horizontal directional drilling machine with synchronous channel forming according to claim 5, characterized in that: The cutting groove at the opening of the forming drum (41) is an annular groove body which is wide outside and narrow inside.
7. A rotary horizontal directional drilling machine with synchronous channel forming according to claim 3, characterized in that: The drill bit assembly (3) comprises a drill tool body (31) and a material guide channel (32); the drill tool body (31) is composed of a drill bit body (311) and a drill rod (312), and is a spiral forward drilling tool; the material guide channel (32) is arranged on the inner side of the drill bit part of the drill bit body (311), and the material outlet end of the material guide channel (32) faces the outer rotating plate (43).
8. The rotary horizontal directional drilling machine with synchronous channel forming according to claim 7, characterized in that: The drilling tool body (31) further comprises a built-in water spraying mechanism, the nozzles of which are evenly distributed along the circumference of the drill bit body (311).
9. The rotary horizontal directional drilling machine with synchronous channel forming according to claim 1, characterized in that: A guide groove (511) is formed on the conical outer wall of the mounting base (51).
10. The rotary horizontal directional drilling machine with synchronous channel forming according to claim 1, characterized in that: The wire control structure comprises an angle adjustment mechanism (1) and a guide assembly (2); the angle adjustment mechanism (1) is a platform that adjusts its posture by hydraulic pressure; the guide assembly (2) is arranged on the regulating end of the angle adjustment mechanism (1); the guide assembly (2) comprises a wire placement platform (21) and a wire threading ring platform (22), both of which are provided with a coaxial wire threading groove.