Drilling mechanism for side slope grouting reinforcement

Abstract

The invention discloses a drilling mechanism for slope grouting reinforcement, and belongs to the technical field of drilling equipment, the drilling mechanism comprises an engineering vehicle body, a drill bit assembly for drilling and a bearing frame for bearing the drill bit assembly, the outer wall of the bearing frame is slidably connected with a power structure for providing power for the drill bit assembly; the output end of the power structure is connected with a transmission structure used for prolonging the drilling depth, and the transmission structure is connected with the drill bit assembly through a drilling structure. According to the drilling device, after the sliding direction of the limiting frame is adjusted, a driving motor is started to drive a flywheel to rotate, the flywheel continuously hammers a power rod in the rotating process, then a power sleeve rotates under the action of a casing pipe, and therefore an output rod and a transmission sleeve rod are matched to drive an inner drill bit and an outer drill bit to rotate; in this way, rotating force can be continuously provided for the drill bit assembly, impact force can be continuously provided for the drill bit assembly, and then the drilling efficiency is improved.

Description

Technical Field

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

[0002] When reinforcing a slope, it is often necessary to fix a point and drill a hole on the slope, and then grout into the hole to complete the reinforcement of the slope. Currently, when fixing a point and drilling a hole on a slope, a special hole-opening engineering vehicle is required. When drilling, the engineering vehicle drives the drill pipe to move to the point where the hole needs to be drilled, and then drives the drill pipe to work by means of pneumatic or electric power. Whether it is pneumatic or electric drive, the drilling of the drill pipe, the rotation of the drill bit, and the suction of the mud are all completed by different devices working together. However, using various devices to cooperate in drilling a slope will increase the volume of the engineering vehicle and also occupy more construction space, making the engineering vehicle unable to use narrow working spaces (for example, when multiple devices are used in combination by the mountain road, it may occupy the entire lane, resulting in the need to close the road during construction). Moreover, traditional drill pipes only have one drill bit, and when the drill bit drills into hard stones or rock layers, different drill bits need to be replaced, which greatly affects the 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 art.

[0004] To achieve the above purpose, the present invention provides the following technical solutions: A drilling mechanism for slope grouting reinforcement includes 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 is connected to the drill bit assembly through a drilling structure. The power structure includes a driving motor, and a limiting frame for restricting the moving direction of the drill bit assembly is symmetrically and fixedly connected to one end of the driving motor close to the carrier. The power structure further includes an output sleeve, which is also fixedly connected to the limiting frame. A limiting sleeve is fixedly connected inside the output sleeve. Lower brackets are symmetrically and fixedly connected to the upper end of the output sleeve, and an upper bracket is movably connected to the upper end of the lower bracket. The upper bracket and the lower bracket are elastically connected. A rotating shaft is rotatably connected inside the upper bracket. A flywheel is fixedly connected to the middle of the rotating shaft by bolts. A counterweight is detachably connected to the outer wall of the flywheel by bolts, and the rotating shaft is connected to the output shaft of the driving motor.

[0005] As a further solution of the present invention, limiting sliding grooves are symmetrically formed on the side walls of the bearing frame, and the limiting frames are respectively slidably connected in the corresponding limiting sliding grooves. A number of limiting blocks are fixedly connected in the limiting sliding grooves. Steering blocks for adjusting the sliding direction of the limiting frames are installed on the outer walls of the limiting frames, and one end of each steering block abuts between two adjacent limiting blocks. Adjusting rods are fixedly connected to the mutually remote ends of the two steering blocks. The adjusting rods are slidably connected to the limiting frames, and a return spring is sleeved outside the adjusting rods.

[0006] As a still further solution of the present invention, the transmission structure includes a transmission pipe, the lower end of the transmission pipe and the output sleeve are detachably connected by bolts. A positioning sleeve is detachably connected inside the transmission pipe. A power rod is slidably connected inside the positioning sleeve. The upper end of the power rod extends all the way to the upper end of the output sleeve. One end of the power rod located inside the output sleeve penetrates through the output sleeve, and a buffer spring is sleeved outside the power rod.

[0007] As a still further solution of the present invention, an upper piston block is fixedly connected to the outer wall of the power rod. 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. 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.

[0008] As a still further solution of the present invention, a water inlet pipe is fixedly connected inside the upper negative pressure chamber. A liquid discharge pipe for conveying water is fixedly connected inside the positioning sleeve. A one-way valve is arranged in the liquid discharge pipe. The liquid discharge pipe communicates with the upper negative pressure chamber, and the liquid discharge pipe penetrates through the lower piston block. A slurry discharge pipe is also fixedly connected to the outer wall of the transmission pipe. The slurry discharge pipe is located inside the lower negative pressure chamber.

[0009] As a still further solution of the present invention, the drilling structure includes a drilling pipe, and the drilling pipe and the transmission pipe are detachably connected by bolts. The drill bit assembly is rotatably connected to the lower end of the drilling pipe. An adapter pipe is installed inside the drilling pipe. The adapter pipe and the power rod are detachably connected by bolts. The lower end of the adapter pipe is rotatably connected to an output rod, and a power sleeve is fixedly sleeved outside the output rod.

[0010] As a still further solution of the present invention, a transmission sleeve rod is fixedly connected to the lower end of the output rod. The drill bit assembly is connected to the transmission sleeve rod. A sleeve is detachably connected inside the drilling pipe by bolts. A transition channel is formed in the sleeve. The power sleeve is movably connected inside the sleeve.

[0011] As a still further solution of the present invention, a number of spiral protrusions are arranged on the outer wall of the power sleeve. Spiral grooves are formed on the inner walls of the sleeves, and the spiral protrusions are adapted to the spiral grooves.

[0012] As a further solution of the present invention, the drill bit assembly includes an inner drill bit, an outer drill bit is sleeved outside the inner drill bit, the outer drill bit is slidably connected in the drilling pipe, 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 opened inside the outer drill bit; A plurality of receiving grooves are opened inside the outer drill bit, the earth-breaking blades of the inner drill bit are located in the receiving grooves, and the shaft of the inner drill bit slidably passes through the outer drill bit and is slidably connected with the transmission sleeve rod. A support spring is further fixedly connected inside the transmission sleeve rod, and the support spring is located at the upper end of the shaft of the inner drill bit.

[0013] Compared with the prior art, the beneficial effects of the present invention are: 1. When the present invention is in use, after the sliding direction of the limit frame is adjusted, the driving motor is started to drive the flywheel to rotate. During the rotation of the flywheel, the power rod will be continuously hammered, so that the power sleeve rotates under the action of the sleeve, and then the inner drill bit and the outer drill bit are driven 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 for the drill bit assembly, but also the impact force can be continuously provided for the drill bit assembly, thereby increasing the drilling efficiency.

[0014] 2. When the present invention is in use, when the flywheel rotates and passes through the lowest point, the output sleeve will be driven to move downward under the action of the inertia of the flywheel, and when the flywheel passes through the highest point, the output sleeve will be driven to move upward. Therefore, by controlling the state of the steering block, the drill bit assembly can be controlled to enter and exit the drilling. 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 practicability of the device and also increasing the adaptability of the device.

[0015] 3. When the present invention is in use, when the power rod reciprocates, the upper piston block and the lower piston block will continuously move up and down in the transmission pipe. When the upper piston block moves, water will be pumped into the upper negative pressure cavity, and then conveyed to the lower negative pressure cavity through the drain pipe. After the water enters the lower negative pressure cavity, it will pass through the transition channel and the connecting channel in sequence 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

[0016] Figure 1 It is a schematic connection diagram of a drilling mechanism for slope grouting reinforcement and an engineering vehicle body.

[0017] Figure 2 It is a schematic structural diagram of a drilling mechanism for slope grouting reinforcement.

[0018] Figure 3It is an exploded view of a drilling mechanism for slope grouting reinforcement.

[0019] Figure 4 It is a structural diagram of the power structure in a drilling mechanism for slope grouting reinforcement.

[0020] Figure 5 It is a cross-sectional view of the output sleeve in a drilling mechanism for slope grouting reinforcement.

[0021] Figure 6 It is a structural diagram of the transmission structure in a drilling mechanism for slope grouting reinforcement.

[0022] Figure 7 It is in a drilling mechanism for slope grouting reinforcement Figure 3 An enlarged schematic diagram at position B.

[0023] Figure 8 It is a structural diagram of the limit frame in a drilling mechanism for slope grouting reinforcement.

[0024] Figure 9 It is an exploded view of the limit frame in a drilling mechanism for slope grouting reinforcement.

[0025] Figure 10 It is an internal structural diagram of the drilling structure in a drilling mechanism for slope grouting reinforcement.

[0026] Figure 11 It is an exploded view of the drilling structure in a drilling mechanism for slope grouting reinforcement.

[0027] Figure 12 It is in a drilling mechanism for slope grouting reinforcement Figure 10 An enlarged schematic diagram at position A.

[0028] In the figure: 1. Engineering vehicle body; 2. Carrier frame; 3. Power structure; 4. Transmission structure; 5. Drilling structure; 6. Bit assembly; 200. Limit block; 300. Mounting plate; 301. Limit frame; 302. Steering block; 303. Adjusting rod; 304. Driving motor; 305. Transmission box; 306. Worm; 307. Bearing rod; 308. Output sleeve; 309. Upper support; 310. Optical axis; 311. Rotating shaft; 312. Flywheel; 313. Counterweight; 314. Worm gear; 315. Hydraulic shock absorber; 316. Buffer cavity; 317. Limit sleeve; 318. Buffer spring; 319. Main rod; 400. Transmission pipe; 401. Upper piston block; 402. Positioning sleeve; 403. Upper negative pressure cavity; 404. Drain pipe; 405. Lower piston block; 406. Power rod; 407. Water inlet pipe; 408. Grout discharge pipe; 500, Drilling pipe; 501, Connecting pipe; 502, Output rod; 503, Power sleeve; 504, Spiral protrusion; 505, Spiral groove; 506, Stirring rod; 507, Sleeve; 508, Protective bellows; 509, Transition channel; 510, Stirring ring; 511, Transmission sleeve rod; 600, Inner drill bit; 601, Outer drill bit; 602, Receiving groove; 603, Connecting channel; 604, Support spring. Specific embodiments

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0030] Embodiment 1: Please refer to Figures 1 - 3 , in the embodiment of the present invention, a drilling mechanism for slope grouting reinforcement includes an engineering vehicle body 1, a drill bit assembly 6 for drilling, and a carrier 2 for carrying the drill bit assembly 6. The engineering vehicle body 1 and the carrier 2 are hydraulically connected, and the connection relationship is a prior art and will not be described in detail herein. A power structure 3 for providing power to the drill bit 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 bit assembly 6 are connected through a drilling structure 5; Please refer to Figures 7 - 9, the power structure 3 includes a driving motor 304. At one end of the driving motor 304 close to the carrier 2, there are symmetrically fixed connection limiting frames 301 for restricting the moving direction of the drill bit assembly 6. Specifically, at one end of the driving motor 304 close to the carrier 2, there is a mounting plate 300 connected by a plurality of bolts, and the limiting frame 301 is also connected to the mounting plate 300 by bolts. On the side wall of the carrier 2, there are symmetrically arranged limiting chutes, and the limiting frames 301 are respectively slidably connected in the corresponding limiting chutes. And a plurality of limiting blocks 200 are fixedly connected in the limiting chutes. Specifically, the plurality of limiting blocks 200 are evenly arranged in the limiting chutes from top to bottom. On the outer wall of the limiting frame 301, there are mounted turning blocks 302 for adjusting the sliding direction of the limiting frame 301, and one end of the turning block 302 abuts between two adjacent limiting blocks 200. Specifically, one end of the turning block 302 is set to be inclined, and the inclined end abuts between two adjacent limiting blocks 200. At the mutually remote ends of the two turning blocks 302, there are fixedly connected adjusting rods 303. The adjusting rods 303 are slidably connected to the limiting frame 301, and a return spring is sleeved on the outside of the adjusting rods 303. More specifically, on the outer wall of the limiting frame 301, there are fixedly connected limiting plates. The limiting plates are set in an "L" shape, and the adjusting rods 303 penetrate through the limiting plates and are slidably connected to them. The return spring is located between the limiting plate and the limiting frame 301. More specifically, at the end of the adjusting rod 303, there is fixedly connected a handle. At the connection between the handle and the adjusting rod 303, there is fixedly connected a polygonal block. The polygonal block penetrates through the limiting plate and is slidably connected to it. One end of the return spring is fixedly connected to the polygonal block, and the other end is fixedly connected to the outer wall of the limiting frame 301 (specifically, refer to Figure 8 and Figure 9 ).

[0031] At the lower end of the driving motor 304, there is fixedly connected a transmission box 305. Specifically, the transmission box 305 is a prior art and will not be described in detail here. And between the input shaft of the transmission box 305 and the output shaft of the driving motor 304, there is a fixed connection through a coupling. On the output shaft of the transmission box 305, there is a fixed connection through a coupling with an extendable worm 306. Specifically, a bearing rod 307 is slidably connected inside the worm 306. The bearing rod 307 is fixedly connected to the output shaft of the transmission box 305. One end of the 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 bearing rod 307 and the worm 306 has a buffering and shock-absorbing effect. More specifically, on the outer wall of the bearing rod 307, there is fixedly connected a limiting convex block. On the inner wall of the worm 306, there is a limiting groove corresponding to the limiting convex block, and the limiting convex block can slide in the limiting groove. By setting the worm 306 to have an elastic telescopic function, the vibration can be avoided from damaging the worm 306.

[0032] Please refer to Figures 4 - 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 plurality of optical axes 310 are slidably connected between the upper bracket 309 and the lower bracket, and the outer parts of the plurality of 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-absorbing principle and internal structure are not 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.

[0033] The upper bracket 309 is internally rotatably connected to a rotating shaft 311, and a flywheel 312 is fixedly connected to the middle part of the rotating shaft 311 by bolts. A counterweight block 313 is detachably connected to the outer wall of the flywheel 312 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, and the worm gear 314 is meshed with the worm 306. Since the connection relationship between the worm 306 and the worm wheel 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 wheel 314, thereby eliminating the impact of the vibration.

[0034] Example 2: Please refer to Figure 6, on the basis of Embodiment 1, the transmission structure 4 includes a transmission pipe 400. The transmission pipe 400 is detachably connected to the lower end of the output sleeve 308 by bolts. Inside the transmission pipe 400, a positioning sleeve 402 is detachably connected by bolts. A power rod 406 is slidably connected inside the positioning sleeve 402. 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 sleeved outside the power rod 406. A circular baffle is fixedly connected to the outer wall of the power rod 406 inside the output sleeve 308. The buffer spring 318 is located between the circular baffle and the limit sleeve 317.

[0035] 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 pipe 400. The space between the upper piston block 401 and the positioning sleeve 402 is the 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 the lower negative pressure chamber; A water inlet pipe 407 is fixedly connected inside the upper negative pressure chamber 403. One 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. A liquid discharge pipe 404 for transporting water is fixedly connected inside the positioning sleeve 402. And a one-way valve is provided in the liquid discharge pipe 404. The one-way valve only allows the water in the upper negative pressure chamber 403 to enter the lower negative pressure chamber. The liquid discharge pipe 404 communicates with the upper negative pressure chamber 403 and penetrates through the lower piston block 405. A slurry discharge pipe 408 is also fixedly connected to the outer wall of the transmission pipe 400. The slurry discharge pipe 408 is located inside the lower negative pressure chamber.

[0036] Please refer to Figures 10 - 12 , the drilling structure 5 includes a drilling pipe 500. And the drilling pipe 500 is detachably connected to the transmission pipe 400 by bolts. The drill bit assembly 6 is rotatably connected to the lower end of the drilling pipe 500. A connecting pipe 501 is installed inside the drilling pipe 500. The connecting pipe 501 and the power rod 406 are detachably connected by bolts. Specifically, the upper end of the connecting pipe 501 is sleeved on the lower end of the power rod 406, and the sleeved part is connected by bolts. The lower end of the connecting pipe 501 is rotatably connected to an output rod 502. A power sleeve 503 is fixedly sleeved outside the output rod 502. And a stirring ring 510 is also fixedly connected to the outside of the power sleeve 503. A plurality of stirring rods 506 are fixedly connected to the outer wall of the stirring ring 510. By driving the stirring rods 506 to rotate through the stirring ring 510, the passing slurry can be stirred to avoid the aggregation of large particle mud blocks; The lower end of the output rod 502 is fixedly connected with a transmission sleeve rod 511, and the drill bit assembly 6 is connected to the transmission sleeve rod 511. The inside of the drilling tube 500 is detachably connected with 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 with 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; 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 spiral grooves 505, and the spiral protrusions 504 are adapted to the spiral grooves 505, and the power sleeve 503 is a hollow rifle rod, and the sleeves 507 are rifle sleeves, that is, the power sleeve 503 can produce a rotation effect when the sleeve 507 moves up and down, and the hollow rifle rod and the rifle sleeve use a large lead, and the use of a large lead can avoid the occurrence of a stuck situation, wherein the lead refers to the distance that the rifle sleeve engaged with the rifle rod moves axially when the rifle rod rotates one circle; The drill bit assembly 6 includes an inner drill bit 600, an outer drill bit 601 is sleeved on the outer portion of the inner drill bit 600, and the outer drill bit 601 is slidably connected in the drilling tube 500, and the inner drill bit 600 is a shallow drill bit for drilling soil layers, and the outer drill bit 601 is an impact drill bit for drilling rock layers, and the maximum rotation 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 also provided inside the outer drill bit 601, and specifically, when the outer drill bit 601 moves upward, it will be restricted by the transmission sleeve rod 511; A plurality of 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, a limiting groove matching 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, and 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.

[0037] The working principle of the present invention is: When the present invention is in use, the engineering vehicle body 1 is used to adjust the carrier 2 so that the drill bit assembly 6 is aligned with the marked drilling position. After alignment, the position of the steering block 302 is adjusted so that the limit frame 301 can only slide downward along the carrier 2. Specifically, when adjusting, first pull the adjusting rod 303 in a direction away from the carrier 2 so that the steering block 302 is separated from the limit block 200, and then rotate the adjusting rod 303 so that the inclined end of the steering block 302 faces upward. At this time, when the limit frame 301 slides downward, the limit block 200 will contact the steering block 302, and the steering block 302 will receive 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. When the limit frame 301 needs to slide upward, the inclined end of the steering block 302 will directly abut against the limit block 200, thereby restricting the upward movement of the limit frame 301; After the sliding direction of the limit frame 301 is adjusted, the driving motor 304 is started. After the driving motor 304 is started, 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. After the power rod 406 is hit by the flywheel 312, it will move downward. When the power rod 406 moves downward, it will drive the power sleeve 503 to move downward through the connecting pipe 501 and the output rod 502. When the power sleeve 503 moves downward, it will rotate, so as to drive 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. In this way, the power rod 406 will reciprocate in a straight line. By this method, not only can continuous rotational power be provided for the drill bit assembly 6, but also continuous impact force can be provided for the drill bit assembly 6, thereby increasing the drilling efficiency; When the flywheel 312 rotates, when the flywheel 312 passes through the lowest point, under the action of the inertia of the flywheel 312, it will drive the output sleeve 308 to move downward (drive the mounting plate 300 to slide downward), and when the flywheel 312 passes through the highest point, it will drive the output sleeve 308 to move upward. However, due to the limitation of the limit frame 301, the mounting plate 300 can only move downward. Therefore, during the rotation of the flywheel 312, under the action of inertia, it will drive the output sleeve 308 to move downward. 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 a thrust to the drill bit assembly 6, so as to facilitate the drill bit assembly 6 to enter the soil layer. By this method, 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 practicability of the device and also increasing the adaptability of the device; 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 pipe 400. When the upper piston block 401 moves, it will pump water into the upper negative pressure chamber 403, and then transport it to the lower negative pressure chamber through the liquid discharge pipe 404 (before use, first pump water into the upper negative pressure chamber 403 through the water inlet pipe 407. It is not necessary to fill the upper negative pressure chamber 403 with water. By first flushing water into the upper negative pressure chamber 403, the upper piston block 401 can draw water in a short time). After the water enters the lower negative pressure chamber, it will successively pass through the transition channel 509 and the connection channel 603 and finally mix 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 will continuously suck the mud, and then discharge it through the slurry discharge pipe 408. In this way, there is no need to rely on an additional pump source to suck the mud (since the drill bit assembly 6 is constantly impacting and rotating during drilling, the mud will be stirred to make it thinner, which is convenient for suction); When drilling into hard rocks, the inner drill bit 600 will be compressed and enter the outer drill bit 601. At this time, since the rocks block the movement of the drill bit assembly 6, when the flywheel 312 acts on the power rod 406 of the device, the power rod 406, the connecting pipe 501, the output rod 502, the transmission sleeve rod 511, and the outer drill bit 601 will form a whole and act as a chisel to impact the rocks. Since the drill bit assembly 6 cannot displace at this time, the reaction force received by the flywheel 312 after hammering the power rod 406 will be transmitted to the flywheel 312 and finally absorbed and dissipated by the hydraulic shock absorber 315. As the flywheel 312 continuously strikes, the rocks will break under the excavation of the outer drill bit 601. After the rocks are broken, the outer drill bit 601 has a moving space. At this time, when the flywheel 312 strikes the power rod 406 again, it will drive the outer drill bit 601 to rotate and impact at the same time. The outer drill bit 601 rotating and impacting at the same time can grind the broken stones for further crushing, and then be pumped out with the water flow; After the drilling is completed, adjust the steering block 302 again so that the limit frame 301 can only move upward. At this time, as the flywheel 312 rotates, under the action of the inertia of the flywheel 312, the limit frame 301 will move upward, thereby recovering the drilling pipe 500 and the drill bit assembly 6 inserted into the drill hole; When deeper holes need to be drilled (when the depth of the hole exceeds the length of the drilling structure 5), a hollow pipe can be connected between the drilling pipe 500 and the transmission pipe 400, and then an extension rod can be connected between the connecting pipe 501 and the power rod 406. Finally, both the water inlet pipe 407 and the slurry discharge pipe 408 are externally connected to pump bodies, one for injecting water and one for discharging slurry (the externally connected pump bodies need to be selected according to the actual situation. If the upper piston block 401 and the lower piston block 405 can still inject water and discharge the slurry, the externally connected pump bodies can be omitted. The specific situation needs to be judged and selected according to the soil looseness and solubility in the actual environment, and will not be described in detail here).

[0038] As described above, it is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A drilling mechanism for slope grouting reinforcement, comprising an engineering vehicle body (1), a drill bit assembly (6) for drilling, and a carrier (2) for carrying the drill bit assembly (6), characterized in that, A power structure (3) that provides power for the drill bit 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) is connected to the drill bit assembly (6) through a drilling structure (5). The power structure (3) includes a drive motor (304). Symmetrically fixed to one end of the drive motor (304) close to the carrier (2) are limit frames (301) for restricting the moving direction of the drill bit assembly (6). The power structure (3) further includes 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). Symmetrically fixed to the upper end of the output sleeve (308) are lower brackets. And the upper ends of the lower brackets are movably connected to an upper bracket (309). The upper bracket (309) and the lower brackets are elastically connected. A rotating shaft (311) is rotatably connected inside the upper bracket (309). A flywheel (312) is fixedly connected to the middle of the rotating shaft (311) by bolts. A counterweight block (313) is detachably connected to the outer wall of the flywheel (312) by bolts. And the rotating shaft (311) is connected to the output shaft of the drive motor (304).

2. The drilling mechanism for slope grouting reinforcement according to claim 1, wherein, Symmetrically provided on the side wall of the carrier (2) are limit sliding grooves. And the limit frames (301) are respectively slidably connected in the corresponding limit sliding grooves. And a number of limit blocks (200) are fixedly connected in the limit sliding grooves. Steering blocks (302) for adjusting the sliding direction of the limit frames (301) are installed on the outer walls of the limit frames (301). And one end of the steering block (302) abuts between two adjacent limit blocks (200). Fixedly connected to the mutually remote ends of the two steering blocks (302) are adjusting rods (303). The adjusting rods (303) are slidably connected to the limit frames (301). And a return spring is sleeved outside the adjusting rods (303).

3. The drilling mechanism for slope grouting reinforcement according to claim 1, wherein, The transmission structure (4) includes a transmission pipe (400). The transmission pipe (400) is detachably connected to the lower end of the output sleeve (308) by bolts. A positioning sleeve (402) is detachably connected inside the transmission pipe (400). A power rod (406) is slidably connected inside the positioning sleeve (402). The upper end of the power rod (406) extends all the way to the upper end of the output sleeve (308). And the end of the power rod (406) located inside the output sleeve (308) penetrates through the output sleeve (308). And a buffer spring (318) is sleeved outside the power rod (406).

4. The drilling mechanism for slope grouting reinforcement according to claim 3, characterized in that, A upper piston block (401) is fixedly connected to the outer wall of the power rod (406). The space between the upper piston block (401) and the positioning sleeve (402) is the 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 the lower negative pressure chamber.

5. A drilling mechanism for slope grouting reinforcement according to claim 4, characterized in that, A water inlet pipe (407) is fixedly connected to the inside of the upper negative pressure chamber (403). A liquid discharge pipe (404) for conveying water is fixedly connected to the inside of the positioning sleeve (402). A one-way valve is provided in the liquid discharge pipe (404). The liquid discharge pipe (404) communicates with the upper negative pressure chamber (403), and the liquid discharge pipe (404) penetrates through the lower piston block (405). A slurry discharge pipe (408) is also fixedly connected to the outer wall of the transmission pipe (400). The slurry discharge pipe (408) is located in the lower negative pressure chamber.

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

7. A drilling mechanism for slope grouting reinforcement according to claim 6, characterized in that, A transmission sleeve rod (511) is fixedly connected to the lower end of the output rod (502). The drill bit assembly (6) is connected to the transmission sleeve rod (511). A sleeve (507) is detachably connected to the inside of the drilling pipe (500) by bolts. A transition channel (509) is provided inside the sleeve (507). The power sleeve (503) is movably connected inside the sleeve (507).

8. A drilling mechanism for slope grouting reinforcement according to claim 7, characterized in that, A number of spiral protrusions (504) are provided on the outer wall of the power sleeve (503). Spiral grooves (505) are provided on the inner wall of the sleeve (507), and the spiral protrusions (504) are adapted to the spiral grooves (505).

9. The drilling mechanism for slope grouting reinforcement according to claim 7, characterized in that, The drill bit assembly (6) includes an inner drill bit (600). An outer drill bit (601) is sleeved outside the inner drill bit (600). The outer drill bit (601) is slidably connected inside the drilling pipe (500). The maximum rotation outer diameter of the inner drill bit (600) is adapted to the outer diameter of the outer drill bit (601). A number of connecting channels (603) are also provided inside the outer drill bit (601). A number of storage grooves (602) are provided inside the outer drill bit (601). The earth-breaking blades of the inner drill bit (600) are located in the storage grooves (602). The shaft of the inner drill bit (600) slidably passes through the outer drill bit (601) and is slidably connected to the transmission sleeve rod (511). A support spring (604) is also fixedly connected to the inside of the transmission sleeve rod (511). The support spring (604) is located at the upper end of the shaft of the inner drill bit (600).

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