A drill boom assembly for ground drilling

Abstract

The application discloses a drill arm assembly for ground drilling, which comprises a first movable arm, a first amplitude adjusting driving mechanism, a second movable arm, a second amplitude adjusting driving mechanism, a drill stand, a mounting rack and a lifting driving mechanism. The first movable arm is used to drive the telescopic arm to extend or retract relative to the first movable arm. The first amplitude adjusting driving mechanism is used to adjust the angle of the first movable arm. The second movable arm is rotatably connected to the telescopic arm. The second amplitude adjusting driving mechanism is used to adjust the angle of the second movable arm. The drill stand is connected with the second movable arm through a second telescopic driving mechanism. An anchor inserting rod is mounted at one end of the drill stand. The mounting rack is movably mounted on the drill stand. The lifting driving mechanism is used to drive the mounting rack to move relative to the drill stand. The two angle-adjusting mechanisms are combined to make the second movable arm be able to be adjusted to be perpendicular to the ground within a certain height range. In addition, the drill stand is lifted to make the bottom of the drill stand contact with the ground instead of being suspended, and the anchor inserting rod is inserted into the ground. Therefore, the structural stability during drilling is improved, and the vibration during drilling is reduced.

Description

Technical Field

[0001] This invention relates to the field of ground drilling technology, and in particular, to a drill arm assembly for ground drilling. Background Technology

[0002] With the development of technology, construction machinery is often used in the construction process to reduce labor intensity and improve work efficiency.

[0003] To facilitate movement, drill arms are typically designed to be foldable, allowing them to be folded up for easy relocation when not in use. However, traditional foldable drill arms can only achieve perpendicularity to the ground at a specific height. Furthermore, during drilling, the drill frame is prone to dangling from the ground, resulting in significant vibration, irregular boreholes, and loose component assembly due to excessive vibration, thus increasing the frequency of equipment maintenance. Summary of the Invention

[0004] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention proposes a drill arm assembly for ground drilling that can adapt well to ground height and reduce vibration during drilling.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] A drill arm assembly for ground drilling includes: a first movable arm, one end of which has a hinge seat for hinged to a mounting carrier, and the other end of which is movably mounted with a telescopic arm along the length of the first movable arm; a first telescopic drive mechanism is connected between the first movable arm and the telescopic arm to drive the telescopic arm to extend or retract relative to the first movable arm; a first amplitude adjustment drive mechanism, one end of which is hinged to the first movable arm and the other end of which is hinged to the mounting carrier, for driving the first movable arm to rotate relative to the mounting carrier to adjust the angle of the first movable arm; and a second movable arm, rotatably connected to the telescopic arm; and a second... An amplitude adjustment drive mechanism is used to drive the second movable arm to rotate relative to the telescopic arm, thereby adjusting the angle of the second movable arm; a drill frame is movably mounted on the second movable arm along its length direction, and a second telescopic drive mechanism is connected between the drill frame and the second movable arm; an anchor rod is mounted at one end of the drill frame, and one end of the anchor rod extends out of the drill frame for insertion into the ground; a mounting frame is movably mounted on the drill frame along the length direction of the second movable arm; a lifting drive mechanism is used to drive the mounting frame to move relative to the drill frame; and a drilling mechanism is mounted on the mounting frame for drilling operations.

[0007] Furthermore, it also includes a wheel axle; the drill frame is provided with an upper drive wheel, and the lifting drive mechanism is installed on the drill frame and connected to the upper drive wheel for driving the upper drive wheel to rotate; two anchor rods are arranged at intervals on the left and right; both ends of the wheel axle are provided with sleeve holes to fit onto the two anchor rods and can move up and down along the anchor rods; an adjustment structure is connected to the anchor rod, the adjustment structure can adjust the position along the anchor rod and can apply a force to the wheel axle away from the upper drive wheel; a lower drive wheel is rotatably fitted on the wheel axle, and the lower drive wheel is connected to the upper drive wheel through a transmission chain or transmission belt; the mounting frame is connected to the transmission chain or transmission belt.

[0008] Furthermore, the anchor rod includes a threaded shaft at the upper end, the threaded shaft is inserted into the sleeve hole, and the adjusting structure is a first nut threadedly connected to the threaded shaft. The first nut is located on the side of the wheel axle facing the upper drive wheel, and a second nut is threadedly connected to the threaded shaft. The second nut is located on the side of the wheel axle away from the upper drive wheel and is used to limit the wheel axle.

[0009] Furthermore, the diameter of the sleeve hole is larger than that of the threaded shaft, the first nut is provided with a first hollow round shaft that is embedded in the gap between the sleeve hole and the threaded shaft, and the second nut is provided with a second hollow round shaft that is embedded in the gap between the sleeve hole and the threaded shaft. The diameters of the first hollow round shaft and the second hollow round shaft are both adapted to the sleeve hole.

[0010] Furthermore, the first hollow round shaft abuts against the second hollow round shaft, the first nut abuts against the wheel axle, and there is a gap between the second nut and the wheel axle.

[0011] Furthermore, the drill frame is connected to an installation block, the installation block is provided with a threaded hole adapted to the threaded shaft, and the threaded shaft is threadedly connected to the threaded hole; a connecting plate is connected to the side wall of the installation block, a travel baffle is connected to the upper end of the connecting plate, the mounting frame is provided with a collision buffer block corresponding to the travel baffle, an installation plate is sandwiched between the installation block and the connecting plate, and a drilling guide cylinder is fixedly connected to one side of the installation plate.

[0012] Furthermore, each anchor rod is provided with two spaced-apart mounting blocks, and a third nut is threadedly connected to the threaded shaft, the third nut abutting against one of the corresponding mounting blocks.

[0013] Furthermore, the second movable arm is connected to the telescopic arm via a rotary adapter, the rotary adapter being rotatably mounted on the telescopic arm along an axis, and the second movable arm is hinged to the rotary adapter; the two ends of the second amplitude adjustment drive mechanism are capable of relative telescopic movement, and the two ends of the second amplitude adjustment drive mechanism are respectively hinged to the second movable arm and the rotary adapter; a third amplitude adjustment drive mechanism is connected between the telescopic arm and the rotary adapter, the third amplitude adjustment drive mechanism being used to drive the rotary adapter to rotate relative to the telescopic arm; the rotation axis of the rotary adapter is parallel to the length direction of the first movable arm, and the hinge axes at both ends of the first amplitude adjustment drive mechanism and the hinge axes at both ends of the second amplitude adjustment drive mechanism are both perpendicular to the rotation axis of the rotary adapter.

[0014] Furthermore, the drill frame sidewall is provided with a guide bar extending along its length, and the mounting bracket is provided with a guide groove adapted to the guide bar.

[0015] Furthermore, the first telescopic drive mechanism, the first amplitude adjustment drive mechanism, the second amplitude adjustment drive mechanism, and the second telescopic drive mechanism are all hydraulic cylinders.

[0016] The present invention has the following beneficial effects:

[0017] The first telescopic drive mechanism drives the telescopic arm to extend and retract relative to the first movable arm, adjusting the drilling position and facilitating the subsequent erection and opening of the second movable arm. Furthermore, since the first amplitude adjustment drive mechanism can adjust the angle of the first movable arm, and the second amplitude adjustment drive mechanism can adjust the angle of the second movable arm, the combined effect of these two angle adjustments allows the second movable arm to be adjusted to be perpendicular to the ground within a certain height range. In addition, the drill frame moves along the second movable arm, enabling lifting and lowering, thus ensuring that the bottom of the drill frame contacts the ground instead of operating suspended in the air. Simultaneously, it allows the anchor rod to be inserted into the ground, improving structural stability during drilling operations, reducing vibration during drilling, resulting in regular boreholes, reducing loose component assembly caused by vibration, and lowering the equipment maintenance frequency.

[0018] In addition to the objectives, features, and advantages described above, the present invention has other objectives, features, and advantages. The invention will now be described in further detail with reference to the figures. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0020] Figure 1 This is a schematic diagram of the first state structure according to an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the second state structure according to an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the third state structure according to an embodiment of the present invention;

[0023] Figure 4 This is a partial structural schematic diagram of an embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram of the local decomposed state structure according to an embodiment of the present invention;

[0025] Figure 6 This is a schematic diagram of the internal structure of the drill frame;

[0026] Figure 7 This is a schematic diagram of the connection structure of some components in an embodiment of the present invention;

[0027] Figure 8 This is a schematic diagram of the disassembled structure of some components according to an embodiment of the present invention;

[0028] Figure 9 This is a sectional view of the anchor bolt.

[0029] Figure 10 This is a schematic diagram of the disassembled structure of the anchor rod and wheel axle according to another embodiment of the present invention;

[0030] Figure 11 This is a partial cross-sectional view of the anchor rod in another embodiment of the present invention.

[0031] Legend:

[0032] First movable arm 100, hinge seat 110, telescopic arm 120, third amplitude adjustment drive mechanism 121, round shaft 122, first telescopic drive mechanism 130;

[0033] First amplitude modulation drive mechanism 200;

[0034] Second movable arm 300;

[0035] Second amplitude modulation drive mechanism 400;

[0036] Drill frame 500, second telescopic drive mechanism 501, vertical pipe 502, base plate 503, side plate 504, sealing plate 505, anchor rod 510, threaded shaft 511, third nut 512, wheel axle 520, sleeve hole 521, upper transmission wheel 530, transmission chain 531, adjusting structure 540, first hollow round shaft 541, lower transmission wheel 550, second nut 560, second hollow round shaft 561, mounting block 570, threaded hole 571, connecting plate 572, stroke baffle 573, mounting plate 574, drilling guide cylinder 575, guide strip 580;

[0037] Mounting bracket 600, collision buffer block 610, guide groove 620, guide plate 630;

[0038] Lifting drive mechanism 700;

[0039] Drilling mechanism 800;

[0040] Rotary adapter 900, rotating hole 910. Detailed Implementation

[0041] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0043] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0044] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0045] Please refer to Figures 1 to 3 A preferred embodiment of the present invention provides a ground drilling arm assembly, comprising a first movable arm 100, a first amplitude adjustment drive mechanism 200, a second movable arm 300, a second amplitude adjustment drive mechanism 400, a drill frame 500, a mounting frame 600, a lifting drive mechanism 700, and a drilling mechanism 800.

[0046] One end of the first movable arm 100 is provided with a hinge seat 110 for hinged connection with the mounting carrier, and the other end is provided with a telescopic arm 120 that is movably mounted along the length of the first movable arm 100. Specifically, the first movable arm 100 is provided with a telescopic hole extending along its own length, and the telescopic arm 120 is inserted into the telescopic hole and can move along the telescopic hole. A first telescopic drive mechanism 130 is connected between the first movable arm 100 and the telescopic arm 120 to drive the telescopic arm 120 to extend and retract relative to the first movable arm 100. That is, the two ends of the first telescopic drive mechanism 130 can move and retract relative to each other. The two ends of the first telescopic drive mechanism 130 are respectively connected to the first movable arm 100 and the telescopic arm 120, thereby driving the telescopic arm 120 to move and retract.

[0047] One end of the first amplitude adjustment drive mechanism 200 is hinged to the first movable arm 100, and the other end is hinged to the mounting carrier. It is used to drive the first movable arm 100 to rotate relative to the mounting carrier in order to adjust the angle of the first movable arm 100.

[0048] The second movable arm 300 is rotatably connected to the telescopic arm 120. The second amplitude adjustment drive mechanism 400 is used to drive the second movable arm 300 to rotate relative to the telescopic arm 120 in order to adjust the angle of the second movable arm 300.

[0049] The drill frame 500 is movably mounted on the second movable arm 300 along the length direction of the second movable arm 300. A second telescopic drive mechanism 501 is connected between the drill frame 500 and the second movable arm 300. An anchor rod 510 is installed at one end of the drill frame 500, and one end of the anchor rod 510 extends out of the drill frame 500 for insertion into the ground.

[0050] The mounting bracket 600 is movably mounted on the drill frame 500 along the length of the second movable arm 300. The lifting drive mechanism 700 is used to drive the mounting bracket 600 to move relative to the drill frame 500; the drilling mechanism 800 is mounted on the mounting bracket 600 and is used for drilling operations.

[0051] This invention provides a drill arm assembly for ground drilling. A first telescopic drive mechanism 130 drives a telescopic arm 120 to extend and retract relative to a first movable arm 100, adjusting the drilling position and facilitating the subsequent vertical opening and lowering of a second movable arm 300. Furthermore, because a first amplitude adjustment drive mechanism 200 can adjust the angle of the first movable arm 100, and a second amplitude adjustment drive mechanism 400 can adjust the angle of the second movable arm 300, the combined effect of these two angle adjustments allows the second movable arm 300 to be adjusted to be perpendicular to the ground within a certain height range. This provides more adjustment dimensions and, through their combined effect, allows the drill frame 500 to be adjusted to a vertical state (perpendicular to the ground) at different height positions. Without the first amplitude adjustment drive mechanism 200, relying solely on the angle adjustment of the second amplitude adjustment drive mechanism 400, the drill frame 500 can only achieve a vertical state at a specific height, failing to adapt well to height differences or uneven ground conditions. Figure 1 and Figure 2 By utilizing the second amplitude adjustment drive mechanism 400, the second movable arm 300 can be moved from... Figure 1 Switching to the collapsed state Figure 2 The open state, such as Figure 3 As shown, the first amplitude adjustment drive mechanism 200 and the second amplitude adjustment drive mechanism 400 can lift the drill frame 500, enabling drilling at higher ground levels when the drilling surface is higher than the ground level of the work vehicle, thus improving the adaptability of the device. Furthermore, the drill frame 500 can move along the second movable arm 300, allowing for raising and lowering when the drill frame 500 is in a vertical position. This further adjusts the height of the drill frame 500 during drilling, ensuring that the bottom of the drill frame 500 contacts the ground instead of operating suspended in mid-air. Simultaneously, it allows the anchor rod 510 to be inserted into the ground, improving structural stability during drilling, reducing vibration, resulting in regular drill holes, mitigating loose component assembly caused by vibration, and reducing equipment maintenance frequency.

[0052] Reference Figure 6 and Figure 7In some embodiments of the present invention, a wheel axle 520 is also included; the drill frame 500 is provided with an upper transmission wheel 530, and a lifting drive mechanism 700 is installed on the drill frame 500 and connected to the upper transmission wheel 530 for driving the upper transmission wheel 530 to rotate; the lifting drive mechanism 700 may be a motor, and two anchor rods 510 are arranged at intervals on the left and right; both ends of the wheel axle 520 are provided with sleeve holes 521 to be sleeved on the two anchor rods 510, and the wheel axle 520 can move up and down along the anchor rods 510; the anchor rods 510 are connected to An adjusting structure 540 is provided, which can be adjusted in position along the anchor rod 510 and can apply a force to the axle 520 away from the upper drive wheel 530. A lower drive wheel 550 is rotatably mounted on the axle 520, and the lower drive wheel 550 is connected to the upper drive wheel 530 by a drive chain or drive belt. The mounting frame 600 is connected to the drive chain or drive belt, thereby driving the upper drive wheel 530 to rotate through the lifting drive mechanism 700, which in turn drives the drive chain or drive belt to rotate, thereby moving the mounting frame 600. Specifically, both the lower drive wheel 550 and the upper drive wheel 530 are sprockets, and the lower drive wheel 550 and the upper drive wheel 530 are connected by a drive chain 531. The anchor rod 510 is used to install the axle 520, and in conjunction with the adjustment structure 540, a force is applied to the axle 520 and the lower drive wheel 550 away from the upper drive wheel 530, thereby tensioning the drive chain 531 or the drive belt. This allows the anchor rod 510 to not only be inserted into the ground, but also to install and adjust the tension of the axle 520. This multi-functional integration simplifies the number of parts.

[0053] Reference Figures 7 to 9 In a further embodiment of the present invention, the anchor rod 510 includes a threaded shaft 511 at its upper end, and the lower end of the anchor rod 510 is pointed to facilitate insertion into the ground. The threaded shaft 511 is inserted into the sleeve hole 521. The adjusting structure 540 is a first nut threadedly connected to the threaded shaft 511. The first nut is located on the side of the axle 520 facing the upper drive wheel 530. By tightening the first nut, the axle 520 and the lower drive wheel 550 on the axle 520 can be pushed away from the upper drive wheel 530, thereby tensioning the transmission chain 531 or the transmission belt, and the tension can be adjusted. A second nut 560 is threadedly connected to the threaded shaft 511. The second nut 560 is located on the side of the axle 520 away from the upper drive wheel 530, and is used to limit the axle 520, reduce the floating range of the axle 520, and make the structure more stable. Of course, the second nut 560 can also be tightened directly, so that the first nut and the second nut 560 clamp the axle 520.

[0054] Reference Figure 10 and Figure 11In a further embodiment of the present invention, the diameter of the sleeve hole 521 is larger than that of the threaded shaft 511, thereby forming a gap between the sleeve hole 521 and the threaded shaft 511. The first nut is provided with a first hollow round shaft 541 that is embedded in the gap between the sleeve hole 521 and the threaded shaft 511, and the second nut 560 is provided with a second hollow round shaft 561 that is embedded in the gap between the sleeve hole 521 and the threaded shaft 511. The diameters of the first hollow round shaft 541 and the second hollow round shaft 561 are both adapted to the sleeve hole 521, thereby using the first hollow round shaft 541 and the second hollow round shaft 561 to position the wheel axle 520, and avoiding direct contact between the threaded surface of the threaded shaft 511 and the inner wall of the sleeve hole 521, which would cause wear on the threaded surface and the sleeve hole 521, thus improving the service life of the equipment.

[0055] Reference Figure 11 In a further embodiment of the present invention, the first hollow round shaft 541 abuts against the second hollow round shaft 561, and the first nut abuts against the wheel axle 520 to provide tension. There is a gap between the second nut 560 and the wheel axle 520, that is, the sum of the lengths of the first hollow round shaft 541 and the second hollow round shaft 561 is greater than the thickness of the sleeve holes 521 at both ends of the wheel axle 520. This avoids the second nut 560 exerting a force on the wheel axle 520 toward the upper drive wheel 530, and avoids the force of the second nut 560 on the wheel axle 520 canceling out the tension force of the first nut on the wheel axle 520, thus weakening the tensioning effect. Furthermore, by using the abutment between the end of the first hollow round shaft 541 and the end of the second hollow round shaft 561, the adjustment of the second nut 560 is restricted, so that the second nut 560 cannot be turned to generate a contact force with the wheel axle 520, but the wheel axle 520 can still be limited. The sum of the lengths of the first hollow circular shaft 541 and the second hollow circular shaft 561 minus the thickness at the positions of the sleeve holes 521 at both ends of the wheel axle 520 can be 0mm to 5mm, for example, 0.5mm, 1mm, 2mm, or 5mm.

[0056] Reference Figure 7 and Figure 8In a further embodiment of the present invention, a mounting block 570 is connected to the drill frame 500. The mounting block 570 is provided with a threaded hole 571 adapted to the threaded shaft 511. The threaded shaft 511 is threadedly connected to the threaded hole 571, thereby realizing the installation of the anchor rod itself using the threaded shaft. The threaded shaft can also realize the installation of the wheel axle and the threaded connection of the adjustment structure, which facilitates the adjustment of the structure to adjust the position and tension the transmission chain 531 or the transmission belt, realizing multiple different types and purposes of a single structure, making the structure more streamlined. A connecting plate 572 is connected to the side wall of the mounting block 570. A travel baffle 573 is connected to the upper end of the connecting plate 572. The mounting frame 600 is provided with a collision buffer block 610 corresponding to the travel baffle 573. The travel baffle 573 can contact the collision buffer block 610, thereby limiting the travel of the mounting frame 600. A mounting plate 574 is sandwiched between the mounting block 570 and the connecting plate 572. A drilling guide cylinder 575 is fixedly connected to one side of the mounting plate 574. The mounting plate 574 and the drilling guide cylinder 575 can be fixed by welding. The drilling guide cylinder 575 guides the drilling and also increases the contact range between the drill frame 500 and the ground during drilling, improving the support stability when in contact with the ground. Furthermore, the connection between the mounting block 570 and the connecting plate 572 is used to fix the mounting plate 574, reducing the use of fasteners and facilitating installation. Specifically, the mounting block 570 and the connecting plate 572 are provided with corresponding holes for connection and fixation by screws, and the mounting plate 574 is provided with holes for screws to pass through, so as to be clamped and fixed by the mounting block 570 and the connecting plate 572.

[0057] In a further embodiment of the present invention, each anchor rod 510 is provided with two spaced-apart mounting blocks 570, thereby connecting the threaded shaft 511 at multiple locations. This avoids the situation where the threaded shaft 511 is connected to the mounting block 570 at only one location, resulting in a large area of ​​the threaded shaft 511 lacking structural constraint, making the lower end of the anchor rod 510 prone to shaking or even damage. The two spaced-apart mounting blocks provide multi-position limiting, improving the stability and structural strength of the anchor rod 510 when inserted into the ground. A third nut 512 is threaded onto the threaded shaft 511, and the third nut 512 abuts against one of the corresponding mounting blocks 570, thereby pre-tightening and reinforcing the threaded connection between the threaded shaft 511 and the mounting block 570, achieving an anti-loosening effect.

[0058] Reference Figure 6 and Figure 8In a specific embodiment of the present invention, the drill frame 500 includes a vertical pipe 502, a base plate 503 connected to the bottom of the vertical pipe 502, and side plates 504 connected to the base plate 503. The vertical pipe 502 is hollow and is used for the movement of the transmission chain. The side plates 504 are spaced apart on the left and right sides, and a sealing plate 505 is provided between the two side plates 504. The mounting block 570 is fixedly installed on the base plate 503 and is attached to the side plates 504. The bottom of the mounting plate 574 is lower than the side plates 504 and the sealing plate 505, thereby reducing the amount of soil from the ground entering the lower transmission wheel 550 and affecting the normal operation of the transmission chain or transmission belt.

[0059] Reference Figure 3 and Figure 4 In some embodiments of the present invention, the second movable arm 300 is connected to the telescopic arm 120 via a rotary adapter 900. The rotary adapter 900 is rotatably mounted on the telescopic arm 120 along an axis, and the second movable arm 300 is hinged to the rotary adapter 900. Specifically, the telescopic arm 120 is provided with a round shaft 122, and the rotary adapter 900 is provided with a rotating hole 910 adapted to the round shaft 122, thereby realizing the rotary hinge between the rotary adapter 900 and the telescopic arm 120; the two ends of the second amplitude adjustment drive mechanism 400 can extend and retract relative to each other. The second amplitude adjustment drive mechanism 400 is hinged at both ends to the second movable arm 300 and the rotary adapter 900, respectively. A third amplitude adjustment drive mechanism 121 is connected between the telescopic arm 120 and the rotary adapter 900. The third amplitude adjustment drive mechanism 121 is used to drive the rotary adapter 900 to rotate relative to the telescopic arm 120. The third amplitude adjustment drive mechanism 121 is hinged at both ends to the telescopic arm 120 and the rotary adapter 900, respectively, and is used to drive the rotary adapter 900 to rotate relative to the telescopic arm 120, thereby further improving the adjustment dimension. (Refer to...) Figure 5 Two third amplitude adjustment drive mechanisms 121 are symmetrically arranged on both sides of the rotary adapter 900, thus providing symmetrical stability and preventing instability due to unilateral support. The rotation axis of the rotary adapter 900 is parallel to the length direction of the first movable arm 100, and the hinge axes at both ends of the first amplitude adjustment drive mechanism 200 and the second amplitude adjustment drive mechanism 400 are perpendicular to the rotation axis of the rotary adapter 900. Specifically, the hinge axes at both ends of the first amplitude adjustment drive mechanism 200 and the second amplitude adjustment drive mechanism 400 are horizontal or nearly horizontal, allowing the first amplitude adjustment drive mechanism 200 to adjust the pitch angle of the first movable arm 100, and the second amplitude adjustment drive mechanism 400 to adjust the pitch angle of the second movable arm 300. The third amplitude adjustment drive mechanism 121 can adjust the other direction (…). Figure 4 The angle (left and right directions) is adjusted to further enhance the adjustment dimension and correct the drilling angle as much as possible.

[0060] Reference Figure 4In some embodiments of the present invention, the drill frame 500 has guide strips 580 extending along its length on its side wall, and the mounting frame 600 has guide grooves 620 adapted to the guide strips 580, thereby achieving movable guidance. In addition, guide plates 630 are provided on both sides of the mounting frame 600, and the drill frame 500 has sliding grooves adapted to the guide plates, thereby achieving movable guidance of the mounting frame 600.

[0061] Specifically, the first telescopic drive mechanism 130, the second telescopic drive mechanism 501, the first amplitude adjustment drive mechanism 200, the second amplitude adjustment drive mechanism 400, and the third amplitude adjustment drive mechanism 121 can all be hydraulic cylinders to provide sufficient power. In addition, the first telescopic drive mechanism 130 and the second telescopic drive mechanism 501 are hinged to the corresponding connected structures, which facilitates installation and reduces the dimensional accuracy requirements of the structural fit, thereby reducing processing costs.

[0062] In a specific embodiment of the present invention, the drilling mechanism 800 includes a motor and a drill rod. The motor is connected to the mounting bracket 600, and the output shaft of the motor is connected to the drill rod, thereby driving the drill rod to rotate to achieve drilling.

[0063] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A drill boom assembly for ground drilling, characterized in that include: The first movable arm (100) has a hinge seat (110) at one end for hinged to the mounting carrier, and a telescopic arm (120) is movably mounted on the other end along the length direction of the first movable arm (100). A first telescopic drive mechanism (130) is connected between the first movable arm (100) and the telescopic arm (120) to drive the telescopic arm (120) to extend and retract relative to the first movable arm (100). The first amplitude adjustment drive mechanism (200) has one end hinged to the first movable arm (100) and the other end hinged to the mounting carrier. It is used to drive the first movable arm (100) to rotate relative to the mounting carrier to adjust the angle of the first movable arm (100). The second movable arm (300) is rotatably connected to the telescopic arm (120). The second amplitude adjustment drive mechanism (400) is used to drive the second movable arm (300) to rotate relative to the telescopic arm (120) in order to adjust the angle of the second movable arm (300); A drill frame (500) is movably mounted on the second movable arm (300) along the length direction of the second movable arm (300). A second telescopic drive mechanism (501) is connected between the drill frame (500) and the second movable arm (300). An anchor rod (510) is installed at one end of the drill frame (500), and one end of the anchor rod (510) extends out of the drill frame (500) for insertion into the ground. The mounting bracket (600) is movably mounted on the drill frame (500) along the length direction of the second movable arm (300); A lifting drive mechanism (700) is used to drive the mounting frame (600) to move relative to the drill frame (500); a drilling mechanism (800) is mounted on the mounting frame (600) and used for drilling operations; It also includes a wheel axle (520); the drill frame (500) is provided with an upper transmission wheel (530), and the lifting drive mechanism (700) is installed on the drill frame (500) and connected to the upper transmission wheel (530) for driving the upper transmission wheel (530) to rotate; two anchor rods (510) are provided on the left and right sides at intervals; both ends of the wheel axle (520) are provided with sleeve holes (521) to be sleeved on the two anchor rods (510), and can move up and down along the anchor rods (510); An adjusting structure (540) is connected to the anchor rod (510). The adjusting structure (540) can be adjusted along the anchor rod (510) and can apply a force to the axle (520) away from the upper drive wheel (530). A lower drive wheel (550) is rotatably sleeved on the axle (520). The lower drive wheel (550) and the upper drive wheel (530) are connected by a drive chain or drive belt. The mounting bracket (600) is connected to the drive chain or drive belt.

2. The drill arm assembly for ground drilling according to claim 1, characterized in that, The anchor rod (510) includes a threaded shaft (511) at the upper end, the threaded shaft (511) is inserted into the sleeve hole (521), and the adjusting structure (540) is a first nut threadedly connected to the threaded shaft (511). The first nut is located on the side of the wheel axle (520) facing the upper drive wheel (530). A second nut (560) is threadedly connected to the threaded shaft (511). The second nut (560) is located on the side of the wheel axle (520) away from the upper drive wheel (530) and is used to limit the wheel axle (520).

3. The drill arm assembly for ground drilling according to claim 2, characterized in that, The diameter of the sleeve hole (521) is larger than that of the threaded shaft (511). The first nut is provided with a first hollow round shaft (541) that is embedded in the gap between the sleeve hole (521) and the threaded shaft (511). The second nut (560) is provided with a second hollow round shaft (561) that is embedded in the gap between the sleeve hole (521) and the threaded shaft (511). The outer diameter of the first hollow round shaft (541) and the second hollow round shaft (561) are both adapted to the sleeve hole (521).

4. The drill arm assembly for ground drilling according to claim 3, characterized in that, The first hollow round shaft (541) abuts against the second hollow round shaft (561), the first nut abuts against the wheel axle (520), and there is a gap between the second nut (560) and the wheel axle (520).

5. The drill arm assembly for ground drilling according to claim 2, characterized in that, The drill frame (500) is connected to a mounting block (570), the mounting block (570) is provided with a threaded hole (571) adapted to the threaded shaft (511), the threaded shaft (511) is threadedly connected to the threaded hole (571); the mounting block (570) is connected to a connecting plate (572) on its side wall, the connecting plate (572) is connected to a travel baffle (573) at its upper end, the mounting frame (600) is provided with a collision buffer block (610) corresponding to the travel baffle (573), the mounting plate (574) is sandwiched between the mounting block (570) and the connecting plate (572), and a drilling guide cylinder (575) is fixedly connected to one side of the mounting plate (574).

6. The drill arm assembly for ground drilling according to claim 5, characterized in that, Each anchor rod (510) is provided with two spaced mounting blocks (570), and a third nut (512) is threaded onto the threaded shaft (511), the third nut (512) abutting against one of the corresponding mounting blocks (570).

7. The drill arm assembly for ground drilling according to claim 1, characterized in that, The second movable arm (300) is connected to the telescopic arm (120) via a rotary adapter (900). The rotary adapter (900) is rotatably mounted on the telescopic arm (120) along an axis, and the second movable arm (300) is hinged to the rotary adapter (900). The two ends of the second amplitude adjustment drive mechanism (400) can extend and retract relative to each other. The two ends of the second amplitude adjustment drive mechanism (400) are respectively hinged to the second movable arm (300) and the rotary adapter (900). The telescopic arm (120) and A third amplitude adjustment drive mechanism (121) is connected between the rotating adapters (900). The third amplitude adjustment drive mechanism (121) is used to drive the rotating adapters (900) to rotate relative to the telescopic arm (120). The rotation axis of the rotating adapters (900) is parallel to the length direction of the first movable arm (100). The hinge axes at both ends of the first amplitude adjustment drive mechanism (200) and the hinge axes at both ends of the second amplitude adjustment drive mechanism (400) are both perpendicular to the rotation axis of the rotating adapters (900).

8. The drill arm assembly for ground drilling according to claim 1, characterized in that, The drill frame (500) has a guide strip (580) extending along its length on its side wall, and the mounting frame (600) has a guide groove (620) adapted to the guide strip (580).

9. The drill arm assembly for ground drilling according to claim 1, characterized in that, The first telescopic drive mechanism (130), the first amplitude adjustment drive mechanism (200), the second amplitude adjustment drive mechanism (400), and the second telescopic drive mechanism (501) are all hydraulic cylinders.

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