Rotary drilling rig for road construction

Abstract

The invention relates to the technical field of road construction equipment, in particular to a rotary drilling rig for road construction, which comprises a drilling rig body, a drilling rod, a drilling cylinder, a hinge rod, a vibration block, an adjusting block, a first elastic piece, a fixed drilling disc and a movable drilling disc, a plurality of first tooth bulges are arranged on the hinge rod; the vibration block is arranged on the inner circumferential wall of the drilling barrel and can slide in the direction parallel to the axis direction of the drilling barrel, a plurality of second tooth protrusions are arranged on the vibration block, and the second tooth protrusions can be meshed with the first tooth protrusions; the first elastic piece is connected between the vibration block and the adjusting block, so that the vibration block has the tendency of being pressed on the hinge rod; the fixed drilling disc is hinged to the bottom of the drilling barrel through a hinge rod and can synchronously drive the hinge rod to move. When the fixed drilling disc opens the bottom opening of the drilling barrel, the fixed drilling disc drives the hinge rod to rotate, and the hinge rod drives the drilling barrel to vibrate through the vibration block under the action of the first elastic piece so as to shake off soil.

Description

Technical Field

[0001] The invention relates to the technical field of road construction equipment, in particular to a rotary drilling rig for road construction. Background Art

[0002] A rotary drilling rig is a highly efficient and multifunctional construction equipment widely used in building foundation projects. Its main function is to drill holes in the soil layer by rotating the drill rod and drill bit. It is suitable for various types of projects such as sandy soil, clay soil, silty soil, as well as cast-in-place piles, continuous walls, foundation reinforcement, etc.

[0003] In the related art, for example, Chinese patent CN118686543B discloses a rotary drilling rig for drilling holes for building pile foundations, which includes a transmission rod, a limit assembly and a drill barrel. The drill barrel is detachably mounted on the transmission rod through the limit assembly, and the drill barrel rotates synchronously with the transmission rod. During use, when the drill barrel has excavated to a certain depth and needs to take soil, the drill bit separates from the transmission rod and rises alone, discharges the soil, and uses the transmission rod in the borehole as a positioning position, and moves again into the borehole and fixes with the transmission rod to work. This method not only reduces the work that the rotary drilling rig needs to do each time it takes soil, but also ensures the positioning accuracy of the drill barrel when it is put back into the borehole.

[0004] However, the existing rotary drilling rigs also have some problems during actual use: after continuous work, a large amount of mud is very likely to adhere to the surface of the drill barrel. On the one hand, this mud increases the additional resistance of the drill barrel during rotation, so that the equipment needs to consume more energy to maintain the normal operation of the drill barrel during the excavation process; on the other hand, it also changes the original shape and weight distribution of the drill barrel, destroys the dynamic balance state of the drill barrel during rotation, and causes the drill barrel to easily experience increased vibration during the excavation process, which seriously interferes with the stable drilling of the drill barrel, thereby reducing the excavation efficiency. Summary of the invention

[0005] Based on this, it is necessary to provide a rotary drilling rig for road construction to address the problem of low excavation efficiency of the current rotary drilling rig during use.

[0006] The above purpose is achieved through the following technical solutions: A rotary drilling rig for road construction, the rotary drilling rig for road construction comprising: Drilling rig body; A drill rod is vertically arranged on the drilling rig body and can move in a vertical direction and rotate around its own axis; A drill barrel is detachably arranged at the bottom of the drill rod and can move synchronously with the drill rod, and the bottom of the drill barrel is open; A hinge rod is arranged on the inner peripheral wall of the drill tube, the axis of the hinge rod is perpendicular to the axis of the drill tube, the hinge rod can rotate around its own axis, and a plurality of first teeth are arranged on the hinge rod, and the plurality of first teeth are arranged along the circumferential direction; A vibration block is arranged on the inner peripheral wall of the drill tube and can slide in a direction parallel to the axial direction of the drill tube, and a plurality of second tooth protrusions are arranged on the vibration block, and the second tooth protrusions can mesh with the first tooth protrusions; An adjusting block, arranged on the inner peripheral wall of the drill tube; a first elastic member connected between the vibration block and the adjustment block, wherein the vibration block has a tendency to be pressed against the hinge rod under the action of the first elastic member; A fixed drill plate, which is hinged to the bottom of the drill tube through the hinge rod, and the fixed drill plate can synchronously drive the hinge rod to move, and is configured to open or close the bottom opening of the drill tube, and two first openings are symmetrically arranged on the plate surface of the fixed drill plate; The movable drill disc is coaxially arranged on the fixed drill disc, and two second openings are symmetrically arranged on the disc surface of the movable drill disc. The movable drill disc can rotate around its own axis relative to the fixed drill disc to close the two first openings or connect the second opening with the first opening.

[0007] Furthermore, the adjustment block can slide in a direction parallel to the axial direction of the drill tube; the rotary drilling rig for road construction also includes an adjustment mechanism, and the adjustment mechanism is configured to adjust the position of the adjustment block.

[0008] Furthermore, the adjustment mechanism includes a first slide rail, a sliding block, a connecting rope and a clamping portion, the first slide rail is an arc-shaped structure and is coaxially arranged on the inner circumferential wall of the drill barrel; the sliding block is inserted into the first slide rail and can slide along the first slide rail; the first end of the connecting rope is fixedly arranged on the sliding block, and the second end of the connecting rope is fixedly arranged on the bottom of the adjustment block; the clamping portion is arranged on the top of the dynamic drill disc and is configured to be able to clamp the sliding block.

[0009] Furthermore, the clamping portion includes two clamping rods, which are arranged at an interval and are respectively clamped on two sides of the sliding block.

[0010] Furthermore, the drill barrel can elastically slide in the vertical direction relative to the drill rod; the rotary drilling rig for road construction also includes a transmission mechanism, which is configured to positively correlate the tension of the connecting rope according to the sliding distance of the drill barrel relative to the drill rod.

[0011] Further, the transmission mechanism includes a first slide groove, a second slide groove, a second elastic member, a movable pulley, a fixed pulley, a connecting rod, two sliding pins and two locking pins, the first slide groove is arranged on the drill rod and extends in the vertical direction; the second slide groove is arranged on the drill barrel and extends in the vertical direction; the sliding pin is slidably inserted in the first slide groove and the second slide groove at the same time, the two sliding pins are arranged at intervals in the vertical direction, and both form a stopper match with the drill barrel; the second elastic member is connected between the two sliding pins, and the two sliding pins have a tendency to move away from each other under the action of the second elastic member; the locking pin can be detachably arranged on the sliding pin and forms a stopper match with the drill barrel; the fixed pulley is arranged on the inner peripheral wall of the drill barrel and can rotate around its own axis; the first end of the connecting rod is fixedly arranged on the drill rod, and the second end is arranged on the movable pulley; the movable pulley can rotate around its own axis and can slide in a direction parallel to the axial direction of the drill barrel; the second end of the connecting rope simultaneously passes around the movable pulley and the fixed pulley.

[0012] Furthermore, the second elastic member is a first compression spring.

[0013] Furthermore, the rotary drilling rig for road construction also includes a plurality of limit bars, which are all arranged on the inner circumferential wall of the drill barrel and are divided into two groups, wherein one group of limit bars is arranged between the movable pulley and the fixed pulley, extends along the extension direction of the connecting rope, and is sleeved on the outer circumference of the connecting rope, and the other group of limit bars is arranged between the movable pulley and the sliding block, extends along the extension direction of the connecting rope, and is sleeved on the outer circumference of the connecting rope.

[0014] Furthermore, the connecting rope is a steel wire rope.

[0015] Furthermore, the first elastic member is a second compression spring.

[0016] The beneficial effects of the present invention are: During use of the rotary drilling rig for road construction provided by the present invention, when the fixed drill plate opens the bottom of the drill barrel, the hinged rod rotates around its own axis under the drive of the fixed drill plate, and when the hinged rod rotates, the meshing between the first tooth protrusion and the second tooth protrusion and the vibration block is driven to vibrate back and forth in the vertical direction under the action of the first elastic member, and the vibration plate synchronously drives the drill barrel to vibrate. Through this vibration mode, the adhesion force between the soil adhered to the surface of the drill barrel and the drill barrel can be effectively destroyed, so that the soil adhered to the surface of the drill barrel is shaken off under the action of vibration, thereby achieving the purpose of cleaning the soil on the surface of the drill barrel, reducing the adverse effects of soil adhesion on the excavation efficiency of the drill barrel, and ensuring that the rotary drilling rig can continue to operate stably and efficiently.

[0017] Furthermore, by setting up an adjustment mechanism, when in use, the position of the adjustment block can be adjusted to change the distance between the adjustment block and the vibration block, and the deformation degree of the first elastic member can be adjusted, so that the vibration intensity of the vibration block can be adaptively adjusted to ensure the cleaning effect of the soil adhering to the drill barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the three-dimensional structure of a rotary drilling rig for road construction provided by an embodiment of the present invention; Figure 2 A schematic diagram of the three-dimensional structure of a rotary drilling rig for road construction without the drilling rig body provided by an embodiment of the present invention; Figure 3 A schematic diagram of the top view of the rotary drilling rig for road construction without the drilling rig body provided by an embodiment of the present invention; Figure 4 for Figure 3 Middle AA section view; Figure 5 for Figure 4 A schematic diagram of the partially enlarged structure at B in the middle; Figure 6 for Figure 4 A schematic diagram of the partially enlarged structure at C in the middle; Figure 7 for Figure 3 Middle DD section view; Figure 8 The working state of the rotary drilling rig for road construction provided by the embodiment of the present invention without the drilling rig body Figure 1 ; Fig. 9 The working state of the rotary drilling rig for road construction provided by the embodiment of the present invention without the drilling rig body Figure 2 .

[0019] in: 1. Drilling machine body; 2. Drill rod; 3. Drill barrel; 301. Second slide rail; 302. Third slide rail; 4. Articulated rod; 401. First tooth protrusion; 5. Vibrating block; 501. Second tooth protrusion; 6. Adjusting block; 7. Second compression spring; 8. Fixed drill plate; 801. First opening; 802. Articulated block; 9. Moving drill plate; 901. Second opening; 10. Adjusting mechanism; 1001. First slide rail; 1002. Sliding block; 1003 , connecting rope; 1004, clamping part; 10041, clamping rod; 1101, first slide groove; 1102, second slide groove; 1103, first compression spring; 1104, movable pulley; 1105, fixed pulley; 1106, connecting rod; 1107, sliding pin; 1108, locking pin; 12, limiting fence; 13, clamping assembly; 1301, pressure rod; 1302, third compression spring; 1303, clamping frame; 1304, connecting hook. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0021] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned herein, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0022] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0023] like Figures 1 to 9As shown, the rotary drilling rig for road construction provided by the embodiment of the present invention is configured to include a drilling rig body 1, a drill rod 2, a drill barrel 3, an articulated rod 4, a vibration block 5, an adjustment block 6, a first elastic member, a fixed drill disc 8 and a movable drill disc 9, wherein the drill rod 2 is vertically arranged on the drilling rig body 1, and can move in the vertical direction and rotate around its own axis; the drill barrel 3 can be detachably arranged at the bottom of the drill rod 2, and can move synchronously with the drill rod 2, and the bottom of the drill barrel 3 is open; the articulated rod 4 is arranged on the inner circumferential wall of the drill barrel 3, the axis of the articulated rod 4 is perpendicular to the axis of the drill barrel 3, the articulated rod 4 can rotate around its own axis, and a plurality of first tooth protrusions 401 are arranged on the articulated rod 4, and the plurality of first tooth protrusions 401 are arranged along the circumferential direction; the vibration block 5 is arranged on the inner circumferential wall of the drill barrel 3, and can slide in a direction parallel to the axial direction of the drill barrel 3, and the vibration block 5 ... A plurality of second tooth protrusions 501 are provided on the movable block 5, and the second tooth protrusions 501 can mesh with the first tooth protrusions 401; the adjusting block 6 is arranged on the inner peripheral wall of the drill tube 3; the first elastic member is connected between the vibrating block 5 and the adjusting block 6, and under the action of the first elastic member, the vibrating block 5 has a tendency to be pressed against the hinge rod 4; the fixed drill plate 8 is hinged to the bottom of the drill tube 3 through the hinge rod 4, the fixed drill plate 8 can synchronously drive the hinge rod 4 to move, and is configured to be able to open or close the bottom opening of the drill tube 3, and two first openings 801 are symmetrically arranged on the disk surface of the fixed drill plate 8; the movable drill plate 9 is coaxially arranged on the fixed drill plate 8, and two second openings 901 are symmetrically arranged on the disk surface of the movable drill plate 9, and the movable drill plate 9 can rotate around its own axis relative to the fixed drill plate 8 to close the two first openings 801 or connect the second opening 901 with the first opening 801.

[0024] Specifically in this embodiment, the drill barrel 3 can be detachably installed at the bottom of the drill rod 2 by means of a latch during installation. The hinged rod 4 is arranged near the bottom of the drill barrel 3 to ensure that it can form an articulated fit with the fixed drill plate 8, so that the fixed drill plate 8 can open or close the bottom opening of the drill barrel 3; the first tooth protrusion 401 is arranged in the middle of the hinged rod 4, and a plurality of first tooth protrusions 401 are arranged at equal intervals along the circumferential direction, so that the hinged rod 4 forms a gear-like structure. In order to facilitate the installation and guidance of the vibration block 5, a second slide rail 301 is arranged on the inner circumferential wall of the drill barrel 3. The second slide rail 301 is arranged near the bottom of the drill barrel 3 and extends in a direction parallel to the axial direction of the drill barrel 3. The vibration block 5 is slidably inserted into the second slide rail 301 during installation. In order to facilitate the meshing of the second tooth protrusion 501 and the first tooth protrusion 401, an arc-shaped structure is provided at the bottom of the vibration block 5, and the concave surface of the arc-shaped structure is provided downward and covers part of the hinge rod 4. A plurality of second tooth protrusions 501 are provided on the concave surface of the arc-shaped structure and are arranged at equal intervals along the extension direction of the arc-shaped structure. The adjustment block 6 is located above the vibration block 5. The first elastic member is provided as a second compression spring 7, which is vertically inserted into the second slide rail 301, and the top end is provided at the bottom of the adjustment block 6, and the bottom end is provided at the top of the vibration block 5. Under the action of the second compression spring 7, the vibration block 5 has a tendency to be pressed against the hinge rod 4.

[0025] The fixed drill plate 8 is located below the movable drill plate 9. In order to facilitate the articulation with the articulated rod 4, a hinge block 802 is provided on the top of the fixed drill plate 8. The hinge block 802 is fixedly sleeved on the articulated rod 4 during installation to ensure that when the fixed drill plate 8 rotates around the axis of the articulated rod 4, the articulated rod 4 can be synchronously driven to rotate around its own axis. The two first openings 801 are symmetrically arranged about the axis of the fixed drill plate 8. The two second openings 901 are symmetrically arranged about the axis of the movable drill plate 9. In order to facilitate the adjustment of the fixed drill plate 8 to open or close the bottom open state of the drill barrel 3, the rotary drilling rig for road construction is configured to also include a clamping assembly 13, the clamping assembly 13 and the hinge block 802 are arranged relative to each other, and are configured to include a pressure rod 1301, a third compression spring 1302, a clamping frame 1303 and a connecting hook 1304, the pressure rod 1301 is vertically inserted in the drill barrel 3, and the top of the pressure rod 1301 passes through the top of the drill barrel 3 and is suspended outside the drill barrel 3; the third compression spring 1302 is sleeved on the pressure rod 1301 and is located outside the drill barrel 3, the third compression spring 1302 is connected between the pressure rod 1301 and the drill barrel 3, and the third compression spring 1302 is connected between the pressure rod 1301 and the drill barrel 3. Under the action of the compression spring 1302, the pressure rod 1301 has a tendency to be pulled out of the drill barrel 3; the bracket 1303 is a U-shaped structure, and the opening is arranged downward at the top of the fixed drill plate 8; the connecting hook 1304 is arranged close to the bottom of the drill barrel 3, the connecting hook 1304 is a J-shaped structure, and the non-hook end of the connecting hook 1304 is hinged to the bottom end of the pressure rod 1301, the middle part of the connecting hook 1304 is hinged to the inner circumferential wall of the drill barrel 3, and the hook end of the connecting hook 1304 can be clamped on the bracket 1303; the pressure rod 1301 can form a stop fit with the drilling rig body 1 to disconnect the clamping fit between the bracket 1303 and the connecting hook 1304.

[0026] Optionally, in order to prevent soil from entering the drill tube 3 and affecting the compression of the second compression spring 7 , a protective cover is provided on the outer cover of the second slide rail 301 .

[0027] Initially, the hook end of the connecting hook 1304 is clamped on the clamping frame 1303 so that the fixed drill plate 8 closes the bottom opening of the drill tube 3 .

[0028] During use, first start the drilling rig body 1, and then move the drill barrel 3 to the construction position; then drive the drill rod 2 to rotate forward, and the drill rod 2 simultaneously drives the drill barrel 3 to rotate forward, so that the movable drill plate 9 rotates relative to the fixed drill plate 8, thereby connecting the second opening 901 and the first opening 801; then drive the drill rod 2 to move downward, and the drill rod 2 simultaneously drives the drill barrel 3 to rotate and move downward, gradually penetrating into the soil layer, and the soil enters the drill barrel 3 through the second opening 901 and the first opening 801.

[0029] When the drill barrel 3 is excavated to a certain depth, the drill rod 2 is driven to rotate in the opposite direction, and the drill rod 2 simultaneously drives the drill barrel 3 to rotate in the opposite direction, so that the movable drill disc 9 rotates relative to the fixed drill disc 8, thereby causing the second opening 901 and the first opening 801 to be misaligned, and the bottom of the drill barrel 3 is completely closed; then the drill rod 2 is driven to move upward, and the drill rod 2 simultaneously drives the drill barrel 3 to move upward and gradually separate from the soil layer; when the drill barrel 3 is separated from the ground, the drill rod 2 continues to be driven upward, so that the pressure rod 1301 and the drilling rig body 1 form a stop fit, and then the pressure rod 1301 overcomes the elastic force of the third compression spring 1302 and moves downward, synchronously driving the connecting hook 1304 and the bracket 1303 to disengage from the clamping, so that the fixed drill disc 8 and the movable drill disc 9 rotate together around the axis of the hinged rod 4 under the action of gravity to open the bottom of the drill barrel 3 and discharge the soil inside the drill barrel 3.

[0030] When the fixed drill disc 8 rotates, it synchronously drives the articulated rod 4 to rotate around its own axis. When the articulated rod 4 rotates, the first tooth protrusion 401 and the second tooth protrusion 501 are meshed, and the vibration block 5 is driven to vibrate back and forth in the vertical direction under the push of the second compression spring 7. The vibration disc synchronously drives the drill barrel 3 to vibrate. Through this vibration mode, the adhesion force between the soil adhered to the surface of the drill barrel 3 and the drill barrel 3 can be effectively destroyed, so that the soil adhered to the surface of the drill barrel 3 is shaken off under the action of vibration, thereby achieving the purpose of cleaning the soil on the surface of the drill barrel 3, reducing the adverse effects of soil adhesion on the excavation efficiency of the drill barrel 3, and ensuring that the rotary drilling rig can continue to operate stably and efficiently.

[0031] In some embodiments, in actual road construction scenarios, factors such as geological conditions and construction environment are complex and changeable. In order to significantly improve the applicability and operating results of the rotary drilling rig for road construction under different working conditions, the adjustment block 6 is configured to be able to slide in a direction parallel to the axial direction of the drill barrel 3; the rotary drilling rig for road construction also includes an adjustment mechanism 10, which is configured to be able to adjust the position of the adjustment block 6.

[0032] In the actual use of the rotary drilling rig, when encountering different geological conditions or the soil adhesion on the surface of the drill tube 3 changes, the operator can flexibly operate the adjustment mechanism 10 according to the specific situation; if the soil on the surface of the drill tube 3 is more viscous and thicker, the soil may not be effectively cleaned by relying solely on the initial vibration intensity; at this time, the adjustment block 6 can be adjusted by the adjustment mechanism 10 to move in the direction close to the vibration block 5, so that the distance between the adjustment block 6 and the vibration block 5 becomes smaller, thereby causing the second compression spring 7 to be further compressed and the deformation degree to increase. According to Hooke's law, the elastic force of the spring is proportional to the deformation amount, so the elastic force generated by the second compression spring 7 increases. Under the action of this increased elastic force, the vibration block 5 is subjected to a correspondingly increased force when the second tooth protrusion 501 and the first tooth protrusion 401 are meshed, thereby increasing the vibration amplitude and frequency of the vibration block 5, and significantly improving the vibration intensity. Stronger vibration intensity can more effectively destroy the adhesion between the soil on the surface of the drill tube 3 and the drill tube 3, making the soil easier to shake off, thereby ensuring a good cleaning effect on the soil adhering to the drill tube 3.

[0033] On the contrary, when there is less soil and less viscosity on the surface of the drill barrel 3, if a high vibration intensity is maintained, it will not only waste energy but also cause unnecessary wear and tear on the equipment. At this time, the adjustment block 6 can be adjusted by the adjustment mechanism 10 to move away from the vibration block 5, thereby increasing the distance between the adjustment block 6 and the vibration block 5. The deformation degree of the second compression spring 7 is reduced accordingly, and the elastic force generated is also reduced accordingly, thereby reducing the vibration intensity of the vibration block 5. This can not only meet the basic needs of cleaning the soil on the surface of the drill barrel 3, but also avoid damage to the equipment caused by excessive vibration, thereby extending the service life of the equipment.

[0034] Furthermore, the adjustment mechanism 10 is configured to include a first slide rail 1001, a sliding block 1002, a connecting rope 1003 and a clamping portion 1004, the first slide rail 1001 is an arc-shaped structure, and is coaxially arranged on the inner circumferential wall of the drill tube 3; the sliding block 1002 is inserted into the first slide rail 1001, and can slide along the first slide rail 1001; the first end of the connecting rope 1003 is fixedly arranged on the sliding block 1002, and the second end of the connecting rope 1003 is fixedly arranged at the bottom of the adjustment block 6; the clamping portion 1004 is arranged on the top of the dynamic drill disc 9, and is configured to be able to clamp the sliding block 1002.

[0035] Specifically in this embodiment, the first slide rail 1001 is close to the bottom of the drill tube 3 and is arranged close to the hinge rod 4; a large friction force is arranged between the sliding block 1002 and the first slide rail 1001 to facilitate locking the position of the sliding block 1002.

[0036] Initially, the first opening 801 and the second opening 901 are arranged alternately, the sliding block 1002 is located at the end of the first sliding rail 1001 and is arranged close to the hinge rod 4. At this time, the connecting rope 1003 is in a tensioned state, but the tensioning force is small. Under the pulling of the connecting rope 1003, the adjusting block 6 is in a relatively lower position, so that the second compression spring 7 is in an elastic compression state.

[0037] When the soil on the surface of the drill barrel 3 is sticky and thick, after dumping the soil inside the drill barrel 3, the drill rod 2 is driven to move downward, and the drill rod 2 drives the drill barrel 3 to move downward; when the drill barrel 3 contacts the ground, as the drill barrel 3 moves, the connecting hook 1304 is re-engaged with the bracket 1303, so that the fixed drill disc 8 and the movable drill disc 9 are jointly blocked at the bottom of the drill barrel 3; then the drill rod 2 is driven to move upward, and the drill rod 2 drives the drill barrel 3 to move upward away from the ground.

[0038] Then, the drill rod 2 is driven to rotate forward, and the drill rod 2 synchronously drives the drill barrel 3 to rotate forward, so that the movable drill plate 9 rotates relative to the fixed drill plate 8. When the movable drill plate 9 moves, it drives the sliding block 1002 to move along the first slide rail 1001 through the clamping part 1004, so that the sliding block 1002 is away from the hinge rod 4, and then drives the adjustment block 6 to move downward through the connecting rope 1003, thereby reducing the distance between the adjustment block 6 and the vibration block 5, increasing the compression degree of the second compression spring 7, and increasing the elastic force generated by the second compression spring 7 accordingly, thereby increasing the vibration intensity of the vibration block 5, and improving the effect of shaking off the soil adhered to the surface of the drill barrel 3.

[0039] In addition, when the viscosity and accumulation degree of the soil on the surface of the drill barrel 3 change, the angle of rotation of the movable drill disc 9 relative to the fixed drill disc 8 can be adjusted so that the clamping part 1004 drives the sliding block 1002 to move to different positions along the first slide rail 1001, thereby adjusting the distance between the adjustment block 6 and the vibration block 5, adjusting the deformation degree of the second compression spring 7, adjusting the elastic force generated by the second compression spring 7, and adjusting the vibration intensity of the vibration block 5, so as to adapt to complex and changeable working conditions.

[0040] Furthermore, the clamping portion 1004 is configured to include two clamping rods 10041 , and the two clamping rods 10041 are arranged at intervals and are respectively clamped on two sides of the sliding block 1002 .

[0041] Specifically in this embodiment, the clamping rod 10041 is vertically arranged on the top of the dynamic drill disc 9, and the two clamping rods 10041 are arranged at intervals along the circumferential direction to ensure that the sliding block 1002 can be synchronously driven to move along the first slide rail 1001 when the dynamic drill disc 9 rotates.

[0042] In other embodiments, in order to extend the service life of the equipment and improve the control accuracy of the position of the adjustment block 6, it is configured that the drill barrel 3 can elastically slide in the vertical direction relative to the drill rod 2; the rotary drilling rig for road construction also includes a transmission mechanism, which is configured to be able to positively adjust the tension of the connecting rope 1003 according to the sliding distance of the drill barrel 3 relative to the drill rod 2.

[0043] During the actual operation of the rotary drilling rig, the drill tube 3 will be subjected to different degrees of force in the vertical direction due to factors such as changes in the resistance of drilling into the soil layer and changes in weight caused by soil adhesion. The traditional rigid connection method cannot adapt to these dynamically changing forces, which can easily lead to excessive wear and even damage to equipment components. The elastic connection method enables the drill tube 3 to be adaptively fine-tuned in the vertical direction, effectively buffering these external force impacts, protecting the connection structure between the drill tube 3 and the drill rod 2, and extending the service life of the equipment.

[0044] In addition, when cleaning the soil adhered to the surface of the drill barrel 3, when the sliding distance of the drill barrel 3 relative to the drill rod 2 increases, it means that the mass of the soil adhered to the surface of the drill barrel 3 is large. At this time, the tension of the connecting rope 1003 can be positively adjusted through the transmission mechanism, so that the distance between the adjustment block 6 and the vibration block 5 is reduced, and the deformation degree of the second compression spring 7 increases accordingly, and the elastic force generated also increases accordingly, thereby increasing the vibration intensity of the vibration block 5 and improving the effect of shaking off the soil adhered to the surface of the drill barrel 3.

[0045] When the sliding distance of the drill barrel 3 relative to the drill rod 2 decreases, it means that the mass of the soil adhered to the surface of the drill barrel 3 is small. At this time, the tension of the connecting rope 1003 can be positively adjusted through the transmission mechanism, so that the distance between the adjustment block 6 and the vibration block 5 increases, and the deformation degree of the second compression spring 7 decreases accordingly, and the elastic force generated is also reduced accordingly, thereby reducing the vibration intensity of the vibration block 5. This can not only meet the basic needs of cleaning the soil on the surface of the drill barrel 3, but also avoid damage to the equipment caused by excessive vibration, thereby extending the service life of the equipment.

[0046] Furthermore, the transmission mechanism is configured to include a first slide groove 1101, a second slide groove 1102, a second elastic member, a movable pulley 1104, a fixed pulley 1105, a connecting rod 1106, two sliding pins 1107 and two locking pins 1108. The first slide groove 1101 is arranged on the drill rod 2 and extends in the vertical direction; the second slide groove 1102 is arranged on the drill tube 3 and extends in the vertical direction; the sliding pin 1107 is slidably inserted in the first slide groove 1101 and the second slide groove 1102 at the same time, and the two sliding pins 1107 are arranged at intervals in the vertical direction and both form a stopper with the drill tube 3; the second elastic member is connected to the two sliding pins 1107. Pins 1107, under the action of the second elastic member, the two sliding pins 1107 have a tendency to move away from each other; the locking pin 1108 can be detachably arranged on the sliding pin 1107, and forms a stop fit with the drill barrel 3; the fixed pulley 1105 is arranged on the inner circumferential wall of the drill barrel 3, and can rotate around its own axis; the first end of the connecting rod 1106 is fixedly arranged on the drill rod 2, and the second end is arranged on the movable pulley 1104; the movable pulley 1104 can rotate around its own axis, and can slide in a direction parallel to the axial direction of the drill barrel 3; the second end of the connecting rope 1003 simultaneously bypasses the movable pulley 1104 and the fixed pulley 1105.

[0047] Specifically in this embodiment, the first slide groove 1101 is a square structure, and is opened through the bottom side wall of the drill rod 2. The second slide groove 1102 is a square structure, and is opened through the top side wall of the drill tube 3. The sliding pin 1107 is set to a T-shaped structure. The sliding pin 1107 is horizontally arranged during installation, and the small end is inserted into the first slide groove 1101 and the second slide groove 1102 at the same time, and the large end can form a stopper with the drill tube 3. The second elastic member is a first compression spring 1103, which is vertically inserted between the two sliding pins 1107, and the top end is fixedly connected to the bottom of the sliding pin 1107 located above, and the bottom end is fixedly connected to the top of the sliding pin 1107 located below. Under the action of the first compression spring 1103, the two sliding pins 1107 have a tendency to move away from each other. The locking pin 1108 is threadedly inserted into the small end of the sliding pin 1107 and can form a stopper match with the drill tube 3, ensuring that the drill rod 2 can be detachably connected to the drill tube 3 under the cooperation of the large end of the sliding pin 1107 and the stopper of the drill tube 3. The fixed pulley 1105 and the movable pulley 1104 are located between the second slide rail 301 and the first slide rail 1001, the fixed pulley 1105 is arranged near the bottom of the drill tube 3, the movable pulley 1104 is arranged near the top of the drill tube 3, and the movable pulley 1104 is arranged closer to the first slide rail 1001 than the fixed pulley 1105. To facilitate the installation and guiding of the movable pulley 1104, a third slide rail 302 is provided on the inner circumferential wall of the drill barrel 3. The third slide rail 302 extends in a direction parallel to the axial direction of the drill barrel 3. The bottom end of the connecting rod 1106 is slidably inserted into the third slide rail 302 during installation. The movable pulley 1104 is rotatably set at the bottom end of the connecting rod 1106. The top end of the connecting rod 1106 passes through the top of the drill barrel 3 and is fixed on the drill rod 2.

[0048] During use, when cleaning the soil adhered to the surface of the drill barrel 3, when the sliding distance of the drill barrel 3 relative to the drill rod 2 increases, it means that the mass of the soil adhered to the surface of the drill barrel 3 is large. At this time, the drill rod 2 moves upward relative to the drill barrel 3, and synchronously drives the movable pulley 1104 to move upward along the third slide rail 302 through the connecting rod 1106, so that the tensioning connecting rope 1003, and under the pull of the connecting rope 1003, the distance between the adjustment block 6 and the vibration block 5 is reduced, and the deformation degree of the second compression spring 7 increases accordingly, and the elastic force generated is also increased accordingly, thereby increasing the vibration intensity of the vibration block 5, and improving the effect of shaking off the soil adhered to the surface of the drill barrel 3.

[0049] When the sliding distance of the drill barrel 3 relative to the drill rod 2 decreases, it means that the mass of the soil adhered to the surface of the drill barrel 3 is small. At this time, the drill rod 2 moves downward relative to the drill barrel 3, and synchronously drives the movable pulley 1104 to move downward along the third slide rail 302 through the connecting rod 1106, so that the connecting rope 1003 is loosened. Under the push of the second compression spring 7, the distance between the adjustment block 6 and the vibration block 5 increases, and the elastic force generated by the second compression spring 7 decreases accordingly, thereby reducing the vibration intensity of the vibration block 5. This can not only meet the basic needs of cleaning the soil on the surface of the drill barrel 3, but also avoid damage to the equipment caused by excessive vibration, thereby extending the service life of the equipment.

[0050] In a further embodiment, the rotary drilling rig for road construction also includes a plurality of limit fences 12, which are all arranged on the inner circumferential wall of the drill barrel 3 and are divided into two groups, wherein one group of limit fences 12 is arranged between the movable pulley 1104 and the fixed pulley 1105, and extends along the extension direction of the connecting rope 1003, and are all sleeved on the outer periphery of the connecting rope 1003; the other group of limit fences 12 is arranged between the movable pulley 1104 and the sliding block 1002, and extends along the extension direction of the connecting rope 1003, and are all sleeved on the outer periphery of the connecting rope 1003.

[0051] Specifically in this embodiment, the limiting fence 12 is configured as a U-shaped structure, and is disposed on the inner circumferential wall of the drill tube 3 with its opening facing outward.

[0052] By setting two sets of limit fences 12, the stability of the connecting rope 1003 in the entire transmission process can be improved. Whether it is the transmission between the movable pulley 1104 and the fixed pulley 1105, or the telescopic adjustment between the movable pulley 1104 and the sliding block 1002, the connecting rope 1003 can move accurately according to the predetermined trajectory under the constraint of the limit fence 12, which not only improves the efficiency and reliability of the transmission of the connecting rope 1003, but also further enhances the control accuracy of the position of the adjustment block 6, thereby ensuring that the rotary drilling rig can operate stably and efficiently under various complex working conditions, providing a solid guarantee for the smooth progress of road construction.

[0053] In other embodiments, the connecting rope 1003 is configured as a steel wire rope.

[0054] Specifically in this embodiment, from a structural point of view, the steel wire rope is usually twisted from multiple strands of high-strength steel wires, and this multi-strand structure gives the steel wire rope extremely high strength and good flexibility. When the sliding block 1002 is driven by the movable drill disc 9 to move along the first slide rail 1001, the steel wire rope needs to withstand a large pulling force to achieve accurate traction on the position of the adjustment block 6. The steel wire rope can easily cope with this pulling force requirement by virtue of its high-strength characteristics, ensuring that it will not break or deform excessively due to the pulling force during frequent adjustment operations, thereby ensuring the reliability and stability of the adjustment mechanism 10.

[0055] In addition, since the first slide rail 1001 is an arc-shaped structure, the movement path of the sliding block 1002 on it is not a straight line, but along an arc. The good flexibility of the wire rope enables it to conform to this arc path. During the movement of the sliding block 1002, it always maintains a stable connection with the sliding block 1002 and the adjustment block 6, and its force transmission performance will not be affected by bending. This feature effectively avoids problems such as movement jamming or loose connection caused by excessive rigidity of the connecting rope 1003, ensuring the smoothness and accuracy of the adjustment process.

[0056] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0057] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A rotary drilling rig for road construction, characterized in that: The rotary drilling rig for road construction comprises: Drilling rig body; A drill rod is vertically arranged on the drilling rig body and can move in a vertical direction and rotate around its own axis; A drill barrel is detachably arranged at the bottom of the drill rod and can move synchronously with the drill rod, and the bottom of the drill barrel is open; A hinge rod is arranged on the inner peripheral wall of the drill tube, the axis of the hinge rod is perpendicular to the axis of the drill tube, the hinge rod can rotate around its own axis, and a plurality of first teeth are arranged on the hinge rod, and the plurality of first teeth are arranged along the circumferential direction; A vibration block is arranged on the inner peripheral wall of the drill tube and can slide in a direction parallel to the axial direction of the drill tube, and a plurality of second tooth protrusions are arranged on the vibration block, and the second tooth protrusions can mesh with the first tooth protrusions; An adjusting block, arranged on the inner peripheral wall of the drill tube; a first elastic member connected between the vibration block and the adjustment block, wherein the vibration block has a tendency to be pressed against the hinge rod under the action of the first elastic member; A fixed drill plate, which is hinged to the bottom of the drill tube through the hinge rod, and the fixed drill plate can synchronously drive the hinge rod to move, and is configured to open or close the bottom opening of the drill tube, and two first openings are symmetrically arranged on the plate surface of the fixed drill plate; The movable drill disc is coaxially arranged on the fixed drill disc, and two second openings are symmetrically arranged on the disc surface of the movable drill disc. The movable drill disc can rotate around its own axis relative to the fixed drill disc to close the two first openings or connect the second opening with the first opening.

2. The rotary drilling rig for road construction according to claim 1, characterized in that: The adjusting block can slide in a direction parallel to the axial direction of the drill tube; the rotary drilling rig for road construction also includes an adjusting mechanism, which is configured to adjust the position of the adjusting block.

3. The rotary drilling rig for road construction according to claim 2, characterized in that: The adjustment mechanism includes a first slide rail, a sliding block, a connecting rope and a clamping portion. The first slide rail is an arc-shaped structure and is coaxially arranged on the inner circumferential wall of the drill tube; the sliding block is inserted into the first slide rail and can slide along the first slide rail; the first end of the connecting rope is fixedly arranged on the sliding block, and the second end of the connecting rope is fixedly arranged on the bottom of the adjustment block; the clamping portion is arranged on the top of the dynamic drill disc and is configured to clamp the sliding block.

4. The rotary drilling rig for road construction according to claim 3, characterized in that: The clamping portion comprises two clamping rods, which are arranged at intervals and clamped on two sides of the sliding block respectively.

5. The rotary drilling rig for road construction according to claim 3, characterized in that: The drill barrel can slide elastically in the vertical direction relative to the drill rod; the rotary drilling rig for road construction also includes a transmission mechanism, which is configured to adjust the tension of the connecting rope in a positive correlation according to the sliding distance of the drill barrel relative to the drill rod.

6. The rotary drilling rig for road construction according to claim 5, characterized in that: The transmission mechanism comprises a first slide groove, a second slide groove, a second elastic member, a movable pulley, a fixed pulley, a connecting rod, two sliding pins and two locking pins, wherein the first slide groove is arranged on the drill rod and extends in the vertical direction; the second slide groove is arranged on the drill tube and extends in the vertical direction; the sliding pin is slidably inserted into the first slide groove and the second slide groove at the same time, the two sliding pins are arranged at intervals in the vertical direction, and both form a stopper match with the drill tube; the second elastic member is connected between the two sliding pins, and the two sliding pins have a tendency to move away from each other under the action of the second elastic member; the locking pin can be detachably arranged on the sliding pin and forms a stopper match with the drill tube; the fixed pulley is arranged on the inner peripheral wall of the drill tube and can rotate around its own axis; the first end of the connecting rod is fixedly arranged on the drill rod, and the second end is arranged on the movable pulley; the movable pulley can rotate around its own axis and can slide in a direction parallel to the axial direction of the drill tube; the second end of the connecting rope simultaneously passes around the movable pulley and the fixed pulley.

7. The rotary drilling rig for road construction according to claim 6, characterized in that: The second elastic member is a first compression spring.

8. The rotary drilling rig for road construction according to claim 6, characterized in that: The rotary drilling rig for road construction also includes a plurality of limit bars, which are all arranged on the inner circumferential wall of the drill barrel and are divided into two groups, one group of limit bars is arranged between the movable pulley and the fixed pulley, extends along the extension direction of the connecting rope, and is sleeved on the outer circumference of the connecting rope, and the other group of limit bars is arranged between the movable pulley and the sliding block, extends along the extension direction of the connecting rope, and is sleeved on the outer circumference of the connecting rope.

9. The rotary drilling rig for road construction according to claim 3, characterized in that: The connecting rope is a steel wire rope.

10. The rotary drilling rig for road construction according to claim 1, characterized in that: The first elastic member is a second compression spring.

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