A drilling mechanism for slope grouting reinforcement

Abstract

The present invention discloses a drilling mechanism for slope grouting reinforcement, which belongs to the technical field of drilling equipment. The mechanism comprises an engineering vehicle body, a drill bit assembly for drilling, and a carrier for carrying the drill bit assembly. A power structure for providing power to the drill bit assembly is slidably connected to the outer wall of the carrier. The output end of the power structure is connected to a transmission structure for extending the drilling depth. The transmission structure and the drill bit assembly are connected via a drilling structure. In the present invention, after the sliding direction of the limit frame is adjusted, the drive motor is turned on to drive the flywheel to rotate. During the rotation of the flywheel, the power rod is continuously hammered, thereby causing the power sleeve to rotate under the action of the casing, thereby driving the inner drill bit and the outer drill bit to rotate through the cooperation of the output rod and the transmission sleeve rod. In this way, not only can the drill bit assembly be continuously provided with rotational force, but also the drill bit assembly can be continuously provided with impact force, thereby increasing the drilling efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of drilling equipment, in particular to a drilling mechanism for slope grouting reinforcement. Background Art

[0002] When reinforcing a slope, it is often necessary to drill holes at fixed points on the slope and then inject grout into the holes to complete the reinforcement of the slope. Currently, when drilling holes at fixed points on the slope, a special drilling engineering vehicle is required. When drilling holes, the engineering vehicle will drive the drill rod to the point where the hole needs to be drilled, and then use pneumatic or electric means to drive the drill rod to work. Regardless of whether it is pneumatic or electric drive, the drilling and rotation of the drill bit during the operation of the drill rod and the suction of the mud are all completed by the cooperation of different equipment. However, using various equipment to drill holes in the slope will increase the size of the engineering vehicle and also take up more construction space, making it impossible for the engineering vehicle to use a narrow working space (for example, using multiple equipment on the side of a mountain road may occupy the entire lane, resulting in the road having to be closed during construction). Moreover, traditional drill rods only have one drill bit. When the drill bit drills into a hard stone or rock layer, a different drill bit needs to be replaced. This method greatly affects work efficiency. Therefore, the present invention provides a drilling mechanism for slope grouting reinforcement to solve the above-mentioned problems. Summary of the Invention

[0003] The purpose of the present invention is to provide a drilling mechanism for slope grouting reinforcement to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A drilling mechanism for slope grouting reinforcement includes an engineering vehicle body, a drill assembly for drilling, and a carrier for carrying the drill assembly. A power structure for providing power to the drill assembly is slidably connected to the outer wall of the carrier. The output end of the power structure is connected to a transmission structure for extending the drilling depth. The transmission structure and the drill assembly are connected via a drilling structure.

[0006] The power structure includes a driving motor, and one end of the driving motor close to the supporting frame is symmetrically fixedly connected to a limiting frame for limiting the moving direction of the drill assembly;

[0007] The power structure also includes an output sleeve, which is also fixedly connected to the limit frame. A limit sleeve is fixedly connected inside the output sleeve. The upper end of the output sleeve is symmetrically fixedly connected to a lower bracket, and the upper end of the lower bracket is movably connected to an upper bracket. The upper bracket and the lower bracket are elastically connected. The interior of the upper bracket is rotatably connected to a rotating shaft, the middle part of the rotating shaft is fixedly connected to a flywheel by bolts, and a counterweight block is detachably connected to the outer wall of the flywheel by bolts, and the rotating shaft is connected to the output shaft of the drive motor.

[0008] As a further solution of the present invention, limiting slide grooves are symmetrically opened on the side walls of the carrier frame, and the limiting frames are slidably connected in the corresponding limiting slide grooves, and a number of limiting blocks are fixedly connected in the limiting slide grooves. Steering blocks for adjusting the sliding direction of the limiting frame are installed on the outer walls of the limiting frames, and one end of the steering block abuts between two adjacent limiting blocks. The ends of the two steering blocks away from each other are fixedly connected with an adjusting rod, the adjusting rod is slidably connected to the limiting frame, and a reset spring is provided on the outer sleeve of the adjusting rod.

[0009] As a further solution of the present invention, the transmission structure includes a transmission tube, which is detachably connected to the lower end of the output sleeve by a bolt, and the interior of the transmission tube is detachably connected to a positioning sleeve, and the interior of the positioning sleeve is slidably connected to a power rod, the upper end of the power rod extends all the way to the upper end of the output sleeve, and the end of the power rod located inside the output sleeve is inserted into the output sleeve, and the outer sleeve of the power rod is provided with a buffer spring.

[0010] As a further solution of the present invention, an upper piston block is fixedly connected to the outer wall of the power rod, and the space between the upper piston block and the positioning sleeve is an upper negative pressure chamber. A lower piston block is also fixedly connected to the outer wall of the power rod, and the lower piston block is located below the positioning sleeve. The space between the lower piston block and the drill bit assembly is a lower negative pressure chamber.

[0011] As a further solution of the present invention, the interior of the upper negative pressure chamber is fixedly connected with a water inlet pipe, the interior of the positioning sleeve is fixedly connected with a drainage pipe for conveying water, and a one-way valve is provided in the drainage pipe. The drainage pipe is connected to the upper negative pressure chamber, and the drainage pipe passes through the lower piston block. A slurry discharge pipe is also fixedly connected to the outer wall of the transmission pipe, and the slurry discharge pipe is located in the lower negative pressure chamber.

[0012] As a further solution of the present invention, the drilling structure includes a drilling tube, and the drilling tube and the transmission tube are detachably connected by bolts, the drill bit assembly is rotatably connected to the lower end of the drilling tube, a connecting tube is installed inside the drilling tube, the connecting tube and the power rod are detachably connected by bolts, the lower end of the connecting tube is rotatably connected to the output rod, and the external fixed sleeve of the output rod is connected to the power sleeve.

[0013] As a further solution of the present invention, the lower end of the output rod is fixedly connected to a transmission sleeve rod, the drill bit assembly is connected to the transmission sleeve rod, the interior of the drilling tube is detachably connected to a sleeve by bolts, a transition channel is opened in the sleeve, and the power sleeve is movably connected in the sleeve.

[0014] As a further solution of the present invention, the outer wall of the power sleeve is provided with a plurality of spiral protrusions, the inner wall of the sleeve is provided with spiral grooves, and the spiral protrusions are adapted to the spiral grooves.

[0015] As a further embodiment of the present invention, the drill bit assembly includes an inner drill bit, an outer drill bit is sleeved on the outer portion of the inner drill bit, the outer drill bit is slidably connected in the drilling tube, and the maximum rotational outer diameter of the inner drill bit is adapted to the outer diameter of the outer drill bit, and a plurality of connecting channels are further provided inside the outer drill bit;

[0016] A plurality of receiving grooves are provided inside the outer drill bit, the soil-breaking blades of the inner drill bit are located in the receiving grooves, and the shaft of the inner drill bit slides through the outer drill bit and is slidably connected to the transmission sleeve. A support spring is also fixedly connected to the interior of the transmission sleeve, and the support spring is located at the upper end of the shaft of the inner drill bit.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. When the present invention is used, after the sliding direction adjustment of the limit frame is completed, the drive motor is turned on to drive the flywheel to rotate. During the rotation of the flywheel, the power rod will be continuously hammered, and the power sleeve will rotate under the action of the casing, thereby driving the inner drill bit and the outer drill bit to rotate through the cooperation of the output rod and the transmission sleeve rod. In this way, not only can the rotational force be continuously provided to the drill bit assembly, but also the impact force can be continuously provided to the drill bit assembly, thereby increasing the drilling efficiency.

[0019] 2. When the present invention is used, when the flywheel passes the lowest point during its rotation, the flywheel inertia drives the output sleeve to move downward, and when the flywheel passes the highest point, the output sleeve drives the output sleeve to move upward. Therefore, by controlling the state of the steering block, the drill bit assembly can be controlled to enter and exit the drill hole. In this way, there is no need to install an additional power source on the carrier to drive the entire drill bit assembly to move, thereby increasing the practicality of the device and also increasing the adaptability of the device.

[0020] 3. When the present invention is in use, the upper piston block and the lower piston block will continuously move up and down in the transmission tube when the power rod reciprocates. When the upper piston block moves, water will be pumped into the upper negative pressure chamber, and then transported to the lower negative pressure chamber through the discharge pipe. After the water enters the lower negative pressure chamber, it will pass through the transition channel and the connecting channel in turn and finally mix with the soil at the end of the drill bit assembly to form mud. As the power rod reciprocates, the lower piston block will continuously suck the mud, and then discharge it through the slurry discharge pipe. In this way, there is no need to rely on an additional pump source to suck the mud. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the connection between a drilling mechanism for slope grouting reinforcement and an engineering vehicle body.

[0022] Figure 2 This is a structural diagram of a drilling mechanism for slope grouting reinforcement.

[0023] Figure 3 This is a disassembled diagram of a drilling mechanism used for slope grouting reinforcement.

[0024] Figure 4 This is a structural diagram of the power structure in a drilling mechanism used for slope grouting reinforcement.

[0025] Figure 5 The present invention is a cross-sectional view of an output sleeve in a drilling mechanism for slope grouting reinforcement.

[0026] Figure 6 The diagram shows the structure of the transmission structure in a drilling mechanism used for slope grouting reinforcement.

[0027] Figure 7 A drilling mechanism for slope grouting reinforcement Figure 3 Enlarged schematic diagram of point B in the middle.

[0028] Figure 8 This is a structural diagram of a limit frame in a drilling mechanism used for slope grouting reinforcement.

[0029] Figure 9 This is a disassembled diagram of the limit frame in a drilling mechanism used for slope grouting reinforcement.

[0030] Figure 10 This is a diagram of the internal structure of the drilling structure in a drilling mechanism used for slope grouting reinforcement.

[0031] Figure 11 This is a disassembled diagram of the drilling structure in a drilling mechanism used for slope grouting reinforcement.

[0032] Figure 12 A drilling mechanism for slope grouting reinforcement Figure 10 A is an enlarged schematic diagram.

[0033] In the figure: 1. Engineering vehicle body; 2. Carrier frame; 3. Power structure; 4. Transmission structure; 5. Drilling structure; 6. Drill assembly;

[0034] 200, limit block; 300, mounting plate; 301, limit frame; 302, steering block; 303, adjustment rod; 304, drive motor; 305, transmission box; 306, worm; 307, load-bearing rod; 308, output sleeve; 309, upper bracket; 310, optical axis; 311, rotating shaft; 312, flywheel; 313, counterweight; 314, worm gear; 315, hydraulic shock absorber; 316, buffer chamber; 317, limit sleeve; 318, buffer spring; 319, main rod;

[0035] 400, transmission pipe; 401, upper piston block; 402, positioning sleeve; 403, upper negative pressure chamber; 404, drainage pipe; 405, lower piston block; 406, power rod; 407, water inlet pipe; 408, slurry discharge pipe;

[0036] 500, drilling tube; 501, connecting tube; 502, output rod; 503, power sleeve; 504, spiral protrusion; 505, spiral groove; 506, stirring rod; 507, casing; 508, protective bellows; 509, transition channel; 510, stirring ring; 511, transmission sleeve;

[0037] 600, inner drill bit; 601, outer drill bit; 602, storage groove; 603, connecting channel; 604, support spring. DETAILED DESCRIPTION

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0039] Example 1: Please refer to Figures 1 to 3 In an embodiment of the present invention, a drilling mechanism for slope grouting reinforcement includes an engineering vehicle body 1, a drill assembly 6 for drilling, and a carrier 2 for carrying the drill assembly 6. The engineering vehicle body 1 and the carrier 2 are connected by hydraulic transmission, and the connection relationship is prior art and will not be disclosed in detail here. A power structure 3 for providing power to the drill assembly 6 is slidably connected to the outer wall of the carrier 2. The output end of the power structure 3 is connected to a transmission structure 4 for extending the drilling depth. The transmission structure 4 and the drill assembly 6 are connected by a drilling structure 5.

[0040] See also Figure 7-Figure 9The power structure 3 includes a driving motor 304, and the driving motor 304 is symmetrically fixedly connected to a limit frame 301 for limiting the moving direction of the drill bit assembly 6 at one end near the carrier 2. Specifically, the driving motor 304 is connected to a mounting plate 300 at one end near the carrier 2 by a plurality of bolts, and the limit frame 301 is also connected to the mounting plate 300 by bolts. A limited sliding groove is symmetrically provided on the side wall of the carrier 2, and the limit frames 301 are slidably connected in the corresponding limited sliding grooves, and a plurality of limit blocks 200 are fixedly connected in the limited sliding grooves. Specifically, the plurality of limit blocks 200 are evenly arranged in the limit sliding grooves from top to bottom, and a steering block 302 for adjusting the sliding direction of the limit frame 301 is installed on the outer wall of the limit frame 301, and one end of the steering block 302 abuts between two adjacent limit blocks 200. Specifically, the steering block 30 The cam 303 is fixedly connected to the locking cam 301 and the locking cam 302 is fixedly connected to the locking cam 301, and the cam 303 is fixedly connected to the locking cam 301. Figure 8 and Figure 9 ).

[0041] The lower end of the driving motor 304 is fixedly connected to the transmission box 305. Specifically, the transmission box 305 is a prior art and will not be described in detail here. The input shaft of the transmission box 305 is fixedly connected to the output shaft of the driving motor 304 by a coupling. The output shaft of the transmission box 305 is fixedly connected to a worm 306 with a telescopic function by a coupling. Specifically, the inside of the worm 306 is slidably connected to a load-bearing rod 307, and the load-bearing rod 307 is fixedly connected to the output shaft of the transmission box 305. One end of the load-bearing rod 307 located inside the worm 306 is also fixedly connected to the worm 306 through a return spring. The return spring between the load-bearing rod 307 and the worm 306 has a buffering and shock-absorbing effect. More specifically, a limiting protrusion is fixedly connected to the outer wall of the load-bearing rod 307, and a limiting groove corresponding to the limiting protrusion is provided on the inner wall of the worm 306, and the limiting protrusion can slide in the limiting groove. By setting the worm 306 to have an elastic telescopic function, vibration can be avoided from causing damage to the worm 306.

[0042] See also Figure 4-Figure 6The power structure 3 also includes an output sleeve 308, which is also fixedly connected to the limit frame 301. Specifically, the output sleeve 308 is fixedly connected to the mounting plate 300 by bolts, and a limit sleeve 317 is fixedly connected inside the output sleeve 308. The upper end of the output sleeve 308 is symmetrically fixedly connected to the lower bracket, and the upper end of the lower bracket is movably connected to the upper bracket 309. The upper bracket 309 and the lower bracket are elastically connected. Specifically, a number of optical axes 310 are slidably connected between the upper bracket 309 and the lower bracket, and the outer parts of the several optical axes 310 are all sleeved with shock-absorbing springs. In order to further increase the stability between the upper bracket 309 and the lower bracket, the lower end of the upper bracket 309 is fixedly connected to the main rod 319, and the upper end of the lower bracket is provided with a A buffer chamber 316 corresponding to the main rod 319, and a hydraulic shock absorber 315 are fixedly connected to the outer wall of the lower bracket. The main rod 319 is fixedly connected to the piston rod of the hydraulic shock absorber 315 through a connecting rod (because the upper bracket 309 can only move linearly up and down when subjected to force, the main rod 319 and the hydraulic shock absorber 315 are fixedly connected). More specifically, a connecting window is provided on the inner wall of the buffer chamber 316, and the connecting rod passes through the buffer chamber 316 through the connecting window and is connected to the piston rod of the hydraulic shock absorber 315. The hydraulic shock absorber 315 is a prior art, and the specific shock absorption principle and internal structure will not be described in detail here. The vibration caused by the rotation of the flywheel 312 can be damped by the cooperation of the shock-absorbing spring and the hydraulic shock absorber 315.

[0043] The upper bracket 309 is internally rotatably connected to a rotating shaft 311, and the middle part of the rotating shaft 311 is fixedly connected to a flywheel 312 by bolts. The outer wall of the flywheel 312 is also detachably connected to a counterweight block 313 by bolts. By increasing the number of counterweight blocks 313, the inertia brought by the rotation of the flywheel 312 can be increased, thereby increasing the impact force on the drill bit assembly 6, thereby facilitating the drill bit assembly 6 to drill holes in soil layers of different hardness. One end of the rotating shaft 311 is fixedly connected to a worm gear 314, which meshes with the worm 306. Since the connection relationship between the worm 306 and the worm gear 314 is irreversible, when the upper bracket 309 vibrates up and down, the worm 306 will be driven to perform telescopic movement through the worm gear 314, thereby eliminating the impact of the vibration.

[0044] Example 2: Please refer to Figure 6Based on Example 1, the transmission structure 4 includes a transmission tube 400, which is detachably connected to the lower end of the output sleeve 308 by bolts. The interior of the transmission tube 400 is detachably connected to a positioning sleeve 402 by bolts. The interior of the positioning sleeve 402 is slidably connected to a power rod 406. The upper end of the power rod 406 extends all the way to the upper end of the output sleeve 308, that is, the upper end of the power rod 406 passes through the output sleeve 308, and the end of the power rod 406 located inside the output sleeve 308 is inserted into the output sleeve 308 and is slidably connected to the output sleeve 308. A buffer spring 318 is provided on the outer sleeve of the power rod 406, and a circular baffle is fixedly connected to the outer wall of the power rod 406 located inside the output sleeve 308. The buffer spring 318 is located between the circular baffle and the limit sleeve 317.

[0045] An upper piston block 401 is fixedly connected to the outer wall of the power rod 406. The upper piston block 401 is located inside the transmission tube 400. The space between the upper piston block 401 and the positioning sleeve 402 is an upper negative pressure chamber 403. A lower piston block 405 is also fixedly connected to the outer wall of the power rod 406. The lower piston block 405 is located below the positioning sleeve 402. The space between the lower piston block 405 and the drill bit assembly 6 is a lower negative pressure chamber.

[0046] The interior of the upper negative pressure chamber 403 is fixedly connected to a water inlet pipe 407, and the end of the water inlet pipe 407 away from the upper negative pressure chamber 403 is connected to the water outlet end of the water pump, and the water inlet end of the water pump is connected to a water tank. The interior of the positioning sleeve 402 is fixedly connected to a drain pipe 404 for conveying water, and a one-way valve is provided in the drain pipe 404. The one-way valve only allows water in the upper negative pressure chamber 403 to enter the lower negative pressure chamber. The drain pipe 404 is connected to the upper negative pressure chamber 403, and the drain pipe 404 passes through the lower piston block 405. A slurry discharge pipe 408 is also fixedly connected to the outer wall of the transmission pipe 400, and the slurry discharge pipe 408 is located in the lower negative pressure chamber.

[0047] See also Figure 10-12 The drilling structure 5 includes a drilling tube 500, and the drilling tube 500 is detachably connected to the transmission tube 400 by bolts. The drill bit assembly 6 is rotatably connected to the lower end of the drilling tube 500. A connecting tube 501 is installed inside the drilling tube 500. The connecting tube 501 is detachably connected to the power rod 406 by bolts. Specifically, the upper end of the connecting tube 501 is sleeved on the lower end of the power rod 406, and the sleeve is connected by bolts. The lower end of the connecting tube 501 is rotatably connected to the output rod 502, and the outside of the output rod 502 is fixedly sleeved with a power sleeve 503, and the outside of the power sleeve 503 is also fixedly connected to a stirring ring 510. The outer wall of the stirring ring 510 is fixedly connected to a plurality of stirring rods 506. The stirring ring 510 drives the stirring rod 506 to rotate to stir the slurry passing through to avoid the accumulation of large particles of mud.

[0048] The lower end of the output rod 502 is fixedly connected to a transmission sleeve rod 511, and the drill bit assembly 6 is connected to the transmission sleeve rod 511. The interior of the drilling tube 500 is detachably connected to a sleeve 507 by bolts. A transition channel 509 is opened in the sleeve 507. The power sleeve 503 is movably connected in the sleeve 507, and the upper and lower ends of the sleeve 507 are fixedly connected to protective bellows 508. The protective bellows 508 is sleeved on the outside of the power sleeve 503, and the power sleeve 503 can be protected by the protective bellows 508.

[0049] The outer wall of the power sleeve 503 is provided with a plurality of spiral protrusions 504, and the inner wall of the sleeve 507 is provided with a spiral groove 505, and the spiral protrusions 504 are adapted to the spiral groove 505, and the power sleeve 503 is a hollow rifle rod, and the sleeve 507 is a rifle sleeve, that is, the power sleeve 503 can produce a rotation effect when it moves up and down in the sleeve 507, and the hollow rifle rod and the rifle sleeve use a large lead, which can avoid the occurrence of jamming. The lead refers to the distance that the rifle sleeve engaged with it moves axially when the rifle rod rotates one circle;

[0050] The drill bit assembly 6 includes an inner drill bit 600, which is sheathed with an outer drill bit 601. The outer drill bit 601 is slidably connected to the borehole tube 500. The inner drill bit 600 is a shallow drill bit for drilling soil layers, while the outer drill bit 601 is a percussion drill bit for drilling rock layers. The maximum rotational outer diameter of the inner drill bit 600 is adapted to the outer diameter of the outer drill bit 601. The outer drill bit 601 is further provided with a plurality of connecting channels 603. Specifically, when the outer drill bit 601 moves upward, it is restricted by the transmission sleeve 511.

[0051] Several receiving grooves 602 are provided inside the outer drill bit 601, the soil-breaking blades of the inner drill bit 600 are located in the receiving grooves 602, and the shaft of the inner drill bit 600 slides through the outer drill bit 601 and is slidably connected to the transmission sleeve 511. A limiting protrusion is fixedly connected to the outer wall of the shaft of the inner drill bit 600, and a limiting groove adapted to the limiting protrusion is provided on the inner wall of the transmission sleeve 511, and the length of the limiting groove is greater than the length of the limiting protrusion. A support spring 604 is also fixedly connected to the inside of the transmission sleeve 511, and the support spring 604 is located at the upper end of the shaft of the inner drill bit 600.

[0052] The working principle of the present invention is:

[0053] When the cam 301 is in the working state, the adjusting rod 303 is pulled away from the supporting frame 2 so that the steering block 302 is separated from the limiting block 200, and then the adjusting rod 303 is rotated so that the inclined end of the steering block 302 faces upward. At this time, when the limiting frame 301 slides downward, the limiting block 200 will contact the steering block 302, and the steering block 302 will be subjected to a reaction force due to the existence of the inclined end. At this time, the steering block 302 will drive the adjusting rod 303 to slide, and when the limiting frame 301 wants to slide upward, the inclined end of the steering block 302 will directly abut against the limiting block 200, thereby limiting the upward movement of the limiting frame 301.

[0054] When the sliding direction of the limit frame 301 is adjusted, the drive motor 304 is turned on. After the drive motor 304 is turned on, it will drive the worm 306 to rotate. When the worm 306 rotates, it will drive the flywheel 312 to rotate through the worm gear 314. During the rotation of the flywheel 312, it will continuously hammer the power rod 406. The power rod 406 will move downward after being hit by the flywheel 312. When the power rod 406 moves downward, it will drive the power sleeve 503 to move downward through the connecting tube 501 and the output rod 502. When the power sleeve 503 moves downward, it will rotate, thereby driving the inner drill bit 600 and the outer drill bit 601 to rotate through the cooperation of the output rod 502 and the transmission sleeve rod 511. When the flywheel 312 is separated from the power rod 406, the power rod 406 will reset, and the reciprocating power rod 406 will reciprocate in a linear motion. In this way, not only can the rotational force be continuously provided to the drill bit assembly 6, but also the impact force can be continuously provided to the drill bit assembly 6, thereby increasing the drilling efficiency.

[0055] When the flywheel 312 passes the lowest point during its rotation, the flywheel 312 will drive the output sleeve 308 to move downward (driving the mounting plate 300 to slide downward) under the action of the inertia of the flywheel 312, and when the flywheel 312 passes the highest point, it will drive the output sleeve 308 to move upward. However, since the mounting plate 300 can only move downward under the restriction of the limit frame 301, the flywheel 312 will drive the output sleeve 308 to move downward under the action of inertia during its rotation. When the output sleeve 308 moves downward, it will drive the inner drill bit 600 and the outer drill bit 601 to move downward together, thereby giving the drill bit assembly 6 a thrust, thereby facilitating the drill bit assembly 6 to enter the soil layer. In this way, there is no need to install an additional power source on the carrier 2 to drive the entire drill bit assembly 6 to move, thereby increasing the practicality of the device and also increasing the adaptability of the device.

[0056] When the power rod 406 reciprocates, the upper piston block 401 and the lower piston block 405 will continuously move up and down in the transmission tube 400. When the upper piston block 401 moves, the water will be pumped into the upper negative pressure chamber 403, and then transported to the lower negative pressure chamber through the discharge pipe 404 (before use, water will be transported to the upper negative pressure chamber 403 through the water inlet pipe 407 by the water pump. There is no need to fill the upper negative pressure chamber 403 with water. By flushing water into the upper negative pressure chamber 403 first, the upper piston block 401 can be in a short time). After the water enters the lower negative pressure chamber, it passes through the transition channel 509 and the connecting channel 603 in sequence and finally mixes with the soil at the end of the drill bit assembly 6 to form mud. As the power rod 406 reciprocates, the lower piston block 405 continuously sucks the mud and then discharges it through the mud discharge pipe 408. In this way, no additional pump source is required to suck the mud (because the drill bit assembly 6 is constantly impacting and rotating during drilling, it will stir the mud to make it thinner, thereby facilitating suction);

[0057] When drilling into a hard stone, the inner drill bit 600 will be compressed into the outer drill bit 601. At this time, since the stone blocks the movement of the drill bit assembly 6, when the flywheel 312 installs the power rod 406, the power rod 406, the connecting tube 501, the output rod 502, the transmission sleeve rod 511 and the outer drill bit 601 will become a whole and play the role of a chisel to impact the stone. Since the drill bit assembly 6 cannot move at this time, the flywheel 312 is hammered onto the power rod 406. The reaction force is transmitted to the flywheel 312 and finally absorbed by the hydraulic shock absorber 315. As the flywheel 312 continuously strikes, the stone is broken by the outer drill bit 601. After the stone is broken, the outer drill bit 601 has space to move. At this time, when the flywheel 312 hits the power rod 406 again, it will drive the outer drill bit 601 to rotate and impact again. The outer drill bit 601 rotates and impacts to grind and further crush the broken stone, and then it is pumped out with the water flow.

[0058] When drilling is completed, the steering block 302 is adjusted again so that the limiting frame 301 can only move upward. At this time, as the flywheel 312 rotates, the limiting frame 301 will move upward under the action of the inertia of the flywheel 312, thereby recovering the drilling tube 500 and the drill bit assembly 6 inserted into the drill hole;

[0059] When a deeper hole needs to be drilled (when the depth of the hole exceeds the length of the drilling structure 5), a hollow tube can be connected between the drilling tube 500 and the transmission tube 400, and then an extension rod can be connected between the connecting tube 501 and the power rod 406. Finally, the water inlet pipe 407 and the slurry discharge pipe 408 are both connected to an external pump body, one for water injection and the other for slurry discharge (the external pump body needs to be selected according to actual conditions. If the upper piston block 401 and the lower piston block 405 can still inject water and discharge slurry, the external pump body can be omitted. The specific situation needs to be judged and selected based on the looseness and solubility of the soil in the actual environment, and will not be described in detail here).

[0060] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A drilling mechanism for slope grouting reinforcement, comprising an engineering vehicle body (1), a drill assembly (6) for drilling holes, and a support frame (2) for supporting the drill assembly (6), characterized in that: A power structure (3) for providing power to the drill assembly (6) is slidably connected to the outer wall of the carrier (2); an output end of the power structure (3) is connected to a transmission structure (4) for extending the drilling depth; and the transmission structure (4) and the drill assembly (6) are connected via a drilling structure (5); The power structure (3) comprises a driving motor (304), and one end of the driving motor (304) close to the carrier (2) is symmetrically fixedly connected to a limiting frame (301) for limiting the moving direction of the drill assembly (6); The power structure (3) further comprises an output sleeve (308), the output sleeve (308) is also fixedly connected to the limit frame (301), a limit sleeve (317) is fixedly connected inside the output sleeve (308), the upper end of the output sleeve (308) is symmetrically fixedly connected to a lower bracket, and the upper end of the lower bracket is movably connected to an upper bracket (309), the upper bracket (309) and the lower bracket are elastically connected, the interior of the upper bracket (309) is rotatably connected to a rotating shaft (311), the middle portion of the rotating shaft (311) is fixedly connected to a flywheel (312) by bolts, the outer wall of the flywheel (312) is also detachably connected to a counterweight (313) by bolts, and the rotating shaft (311) is connected to the output shaft of the drive motor (304); The transmission structure (4) includes a transmission tube (400), the transmission tube (400) is detachably connected to the lower end of the output sleeve (308) by bolts, the interior of the transmission tube (400) is detachably connected to a positioning sleeve (402), the interior of the positioning sleeve (402) is slidably connected to a power rod (406), the flywheel (312) continuously hammers the power rod (406) during rotation, the upper end of the power rod (406) extends all the way to the upper end of the output sleeve (308), and one end of the power rod (406) located inside the output sleeve (308) is inserted into the output sleeve (308), and the outer sleeve of the power rod (406) is provided with a buffer spring (318); An upper piston block (401) is fixedly connected to the outer wall of the power rod (406), and the space between the upper piston block (401) and the positioning sleeve (402) is an upper negative pressure chamber (403). A lower piston block (405) is also fixedly connected to the outer wall of the power rod (406), and the lower piston block (405) is located below the positioning sleeve (402). The space between the lower piston block (405) and the drill bit assembly (6) is a lower negative pressure chamber. The interior of the upper negative pressure chamber (403) is fixedly connected to a water inlet pipe (407), the interior of the positioning sleeve (402) is fixedly connected to a drainage pipe (404) for conveying water, and a one-way valve is provided in the drainage pipe (404). The drainage pipe (404) is communicated with the upper negative pressure chamber (403), and the drainage pipe (404) passes through the lower piston block (405). A slurry discharge pipe (408) is also fixedly connected to the outer wall of the transmission pipe (400), and the slurry discharge pipe (408) is located in the lower negative pressure chamber.

2. A drilling mechanism for slope grouting reinforcement according to claim 1, characterized in that: The side walls of the carrier frame (2) are symmetrically provided with limiting slide grooves, and the limiting frames (301) are respectively slidably connected in the corresponding limiting slide grooves, and a plurality of limiting blocks (200) are fixedly connected in the limiting slide grooves, and a steering block (302) for adjusting the sliding direction of the limiting frame (301) is installed on the outer wall of the limiting frame (301), and one end of the steering block (302) abuts between two adjacent limiting blocks (200), and the ends of the two steering blocks (302) that are away from each other are fixedly connected with an adjusting rod (303), the adjusting rod (303) is slidably connected to the limiting frame (301), and a reset spring is provided on the outer sleeve of the adjusting rod (303).

3. A drilling mechanism for slope grouting reinforcement according to claim 1, characterized in that: The drilling structure (5) includes a drilling tube (500), and the drilling tube (500) and the transmission tube (400) are detachably connected by bolts. The drill bit assembly (6) is rotatably connected to the lower end of the drilling tube (500). A connecting tube (501) is installed inside the drilling tube (500), and the connecting tube (501) and the power rod (406) are detachably connected by bolts. The lower end of the connecting tube (501) is rotatably connected to the output rod (502), and the outside of the output rod (502) is fixedly sleeved with a power sleeve (503).

4. A drilling mechanism for slope grouting reinforcement according to claim 3, characterized in that: The lower end of the output rod (502) is fixedly connected to a transmission sleeve rod (511), the drill bit assembly (6) is connected to the transmission sleeve rod (511), the interior of the drilling tube (500) is detachably connected to a sleeve (507) via bolts, a transition channel (509) is provided in the sleeve (507), and the power sleeve (503) is movably connected in the sleeve (507).

5. A drilling mechanism for slope grouting reinforcement according to claim 4, characterized in that: The outer wall of the power sleeve (503) is provided with a plurality of spiral protrusions (504), the inner wall of the sleeve (507) is provided with spiral grooves (505), and the spiral protrusions (504) are adapted to the spiral grooves (505).

6. A drilling mechanism for slope grouting reinforcement according to claim 5, characterized in that: The drill bit assembly (6) comprises an inner drill bit (600), an outer drill bit (601) is sleeved on the outer portion of the inner drill bit (600), the outer drill bit (601) is slidably connected in the drilling tube (500), and the maximum rotational outer diameter of the inner drill bit (600) is adapted to the outer diameter of the outer drill bit (601), and a plurality of connecting channels (603) are further provided inside the outer drill bit (601); The outer drill bit (601) is provided with a plurality of receiving grooves (602) therein, the soil-breaking blades of the inner drill bit (600) are located in the receiving grooves (602), and the shaft of the inner drill bit (600) slides through the outer drill bit (601) and is slidably connected to the transmission sleeve (511), and a support spring (604) is fixedly connected to the interior of the transmission sleeve (511), and the support spring (604) is located at the upper end of the shaft of the inner drill bit (600).

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