Anti-slide pile or retaining wall hole-forming drill with variable sawtooth angle

Abstract

The utility model discloses an anti-slide pile or retaining wall hole-forming drill with a variable sawtooth angle. The anti-slide pile or retaining wall hole-forming drill comprises a conical drill assembly and a vertical drill assembly which are oppositely arranged up and down, the conical drill assembly comprises a conical drill U-shaped steel frame, a conical drill and a rotating assembly, the conical drill and the rotating assembly are both installed in the conical drill U-shaped steel frame, the rotating assembly comprises a linkage plate and rotating hydraulic cylinders, the two vertical ends of the linkage plate are both connected with the rotating hydraulic cylinders, and the rotating hydraulic cylinders are fixed to the conical drill U-shaped steel frame; the rotary hydraulic cylinder drives the linkage plate to rotate, the conical drill comprises a cutter head assembly, a power assembly and a horizontal hydraulic cylinder which are sequentially connected, the power assembly drives the cutter head assembly to rotate, one end of the horizontal hydraulic cylinder is fixed to the linkage plate, and the other end of the horizontal hydraulic cylinder is connected with the power assembly through a telescopic rod so as to drive the conical drill to move horizontally. The utility model has the advantages that the component force block hole which is optimal with the vertical component force angle of the residual gliding force is drilled according to the residual gliding force directions of different side slopes.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-sliding pile or retaining wall slotting equipment, in particular to an anti-sliding pile or retaining wall hole forming drill with a variable sawtooth angle. Background Art

[0002] In slope support, roadbed construction and other projects, anti-slide piles / retaining walls are the most effective measures to transfer the lateral thrust of rock and soil to the stable stratum below the sliding surface, resist lateral thrust, and control engineering and geological disasters. They are widely used in various engineering fields. When the landslide thrust acts on the anti-slide piles or retaining walls, the direction of the residual sliding force is usually not horizontal, but at a certain angle to the horizontal direction. The angle of most landslides is between 10 and 30°. According to the residual sliding force vector analysis, there are horizontal and vertical components. The commonly used anti-slide piles or retaining walls only resist the horizontal component, and the vertical component only acts on the anti-slide piles or retaining walls to transfer to the sliding bed, and has no direct effect on ordinary anti-slide piles or retaining walls. For retaining walls with multiple rows of sawtooth force blocks at the cantilever end of the anti-slide piles or retaining walls, the force blocks can exert the vertical component of the residual sliding force, provide a bending moment in the opposite direction of the horizontal force, and improve the bending resistance of the anti-slide piles / retaining walls. However, it is extremely difficult to drill holes for sawtooth anti-slide piles or retaining wall force blocks. Traditional anti-slide piles or retaining wall holes are usually excavated manually or mechanically. Collapses caused by manual bored pile construction account for 65% of the total collapse accidents, and are inefficient and costly. Mechanical excavation is safer and more efficient. Therefore, the use of mechanical drilling and digging of sawtooth anti-slide piles or retaining wall holes in the rock and soil layer is of great significance to ensure the safety of construction workers and improve efficiency.

[0003] At present, there are various drilling equipment and mechanical excavation methods. For example, the existing anti-slip pile drilling machinery has patent number CN103244053 A "Rectangular Drilling Machine", which mainly drives two T-shaped cutters evenly distributed at the bottom of the two steel frames to move toward each other and reciprocate through two cam bodies to cut the soil into a rectangular hole. Patent number CN 104533300 A "Rectangular Drilling Machine" sets a conical drill bit at the bottom of the rectangular transmission box and a cross-shaped long knife on the four sides. The conical drill bit drills into a circular pile hole, and then the cross-shaped long knife is rotated and cut to trim it into a rectangular pile hole. Patent number CN 105951798 A "A Rectangular Drilling Machine" mainly drives four concave waist cylinders with stirring knives to cut the soil through a motor to drill into a rectangular pile hole. Existing retaining wall slotting technologies mainly include bucket type and milling wheel type. Patent number CN 114687393A "A Continuous Wall Construction Equipment and Construction Method" uses a rotary drill and a grab bucket to circulate and drill the ground-connected wall slot. Patent No. CN 110258693A "A hydraulic grab and underground continuous wall construction equipment" realizes the switching between the hydraulic grab and the double-wheel milling machine through movable buckles and connecting parts, achieving multiple uses of one machine for drilling and digging underground continuous wall trenches. In order to realize the construction of ground-connected wall in low clearance, patent number CN 114086618A "A modular milling slot device for underground ground-connected wall construction" modularizes the functional components of the ground-connected wall slotting equipment into milling and cutting modules, slurry extraction modules, coiling modules and accessory reel modules, and connects them from front to back and lays them on the track; patent number CN 216108696 U "A truss chain milling and stirring ground-connected wall machine" and patent number CN 115897551 A "A continuous wall construction equipment and construction method based on TRD drilling rig" are both equipped with a chain with multiple milling heads evenly distributed on the truss with active and passive drive mechanisms at both ends, and the chain with milling heads is driven by the active drive mechanism to drill the ground-connected wall slot. Although the existing anti-slip pile or retaining wall slotting machine has solved some hole and slotting problems. However, the following problems still exist: (1) Existing drilling rigs mainly form vertical rectangular pile holes or wall grooves in the rock and soil, but cannot drill force block holes in the rock and soil; (2) The residual sliding force of different slopes has different horizontal angles, so it is impossible to drill force block holes with the optimal vertical component angle with the residual sliding force; (3) Other mechanical or auxiliary measures are required to repair the holes, which results in low drilling efficiency and high cost, and it is impossible to drill a groove or hole in one go; (4) Anti-slip piles or retaining wall holes require auxiliary equipment to clean the debris in the pile holes or grooves, and the drilling and slag removal equipment has a low integration level, resulting in low drilling efficiency and high cost. Summary of the invention

[0004] The purpose of the utility model is to provide a variable sawtooth angle anti-sliding pile or retaining wall hole-forming drill according to the above-mentioned deficiencies of the prior art, which is composed of a conical drill assembly with an adjustable horizontal angle and a vertical drill assembly. The vertical hole is drilled by the vertical drill assembly, and the conical drill assembly with an adjustable horizontal angle drills a force component block hole. The force component block can exert the vertical component of the residual sliding force, provide a bending moment in the opposite direction of the same horizontal force, and improve the bending resistance of the anti-sliding pile or retaining wall; according to the direction of the residual sliding force of different slopes, the force component block hole with the optimal angle to the vertical component of the residual sliding force is drilled; the drilling of the force component block hole does not require the assistance of other mechanical equipment, which saves construction period and construction cost, improves work efficiency, and ensures project quality and the safety of construction personnel.

[0005] The purpose of this utility model is achieved by the following technical solutions:

[0006] A variable sawtooth angle anti-slip pile or retaining wall hole drill, comprising a cone drill assembly and a vertical drill assembly arranged relatively up and down; the cone drill assembly comprises a cone drill U-shaped steel frame, a cone drill and a rotating assembly, the cone drill U-shaped steel frame is a box-shaped structure with a side opening, the cone drill and the rotating assembly are both installed in the cone drill U-shaped steel frame, the cone drill is provided with a plurality of cone drills, a single cone drill is horizontally arranged and a plurality of cone drills are vertically arranged, the rotating assembly comprises a linkage plate and a rotating hydraulic cylinder, the linkage plate is vertically arranged and the vertical ends of the linkage plate are both connected to the rotating hydraulic cylinder, the rotating hydraulic cylinder is fixed on the cone drill U-shaped steel frame, the rotating hydraulic cylinder drives the linkage plate to rotate, the cone drill comprises a cutter disc assembly, a power assembly and a horizontal hydraulic cylinder connected in sequence, the power assembly drives the cutter disc assembly to rotate, one end of the horizontal hydraulic cylinder is fixed on the linkage plate, and the other end is connected to the power assembly through a telescopic rod to drive the cone drill to move horizontally.

[0007] The U-shaped steel frame of the cone drill is surrounded by a lower side guard plate, an upper side guard plate, a left side guard plate, a right side guard plate and a rear guard plate of the cone drill. The left side guard plate and the right side guard plate of the cone drill are respectively provided with a plurality of slide grooves along their length directions; the cutter disc assembly comprises a conical cutter disc and a plurality of cutting slag feed holes arranged along the circumference of the cutter disc, and a cutting knife is installed at the edge of each cutting slag feed hole on the outer wall of the cutter disc; the power assembly comprises a protective cover, a baffle, a bottom plate and a rotary cutting motor, The baffle plate and the base plate are respectively installed at both ends of the protective cover shell, a shaft hole is provided at the center of the baffle plate, the rotary cutting motor is fixed between the baffle plate and the base plate, the rotary cutting motor shaft on the rotary cutting motor passes through the shaft hole on the baffle plate and is connected with the center of the inner wall of the cutter disc, a plurality of steel supports are arranged along the circumference of the rotary cutting motor shaft, the rotary cutting motor shaft is connected with the inner wall of the cutter disc through the steel supports, and sliding shafts corresponding to the slide grooves are respectively connected at both ends of the baffle plate.

[0008] The cutting slag feed hole on the cutter disc extends from the side of the cutter disc to the middle of the cutter disc and the inner diameter of the cutting slag feed hole gradually decreases. The cutting blade extends from the side of the cutter disc to the middle of the cutter disc.

[0009] The vertical drill assembly includes a vertical drill U-shaped steel frame and a cylindrical drill installed in the vertical drill U-shaped steel frame. The vertical drill U-shaped steel frame is formed by two oppositely arranged wing plates and a web with two ends respectively connected to the top of the two wing plates. The web is connected to the lower side guard plate of the conical drill through a connecting plate.

[0010] The cylindrical drill comprises a cylinder and a rotating motor rotor mounted on the central axis of the cylinder, the two ends of the rotating motor fixed shaft on the rotating motor rotor are respectively fixedly connected to the two wing plates, the cylinder is provided with a plurality of stirring blade assemblies along its circumference, and the stirring blade assemblies comprise a stirring blade base and a stirring blade mounted on the stirring blade base.

[0011] A conical drill slag suction pipe hole is provided on the side of the baffle, and a conical drill slag discharge pipe hole is provided on the side of the bottom plate. A conical drill slag discharge pipe is connected between the conical drill slag suction pipe hole and the conical drill slag discharge pipe hole. The conical drill slag discharge pipe is connected to the slag discharge main pipe through a telescopic pipe. The slag discharge main pipe is vertically arranged in the conical drill U-shaped steel frame and both ends of the slag discharge main pipe are in the form of telescopic pipes.

[0012] The lower end of the slag discharge main pipe is connected to one end of the vertical drill slag discharge pipe, and the other end of the vertical drill slag discharge pipe extends into the vertical drill U-shaped steel frame and is arranged close to the cylindrical drill. A suction head with a slag suction valve is installed on the vertical drill slag discharge pipe.

[0013] The advantages of the utility model are:

[0014] (1) Use cone drilling to drill force block holes in the rock body to improve the bending resistance of anti-slide piles or retaining walls;

[0015] (2) Drilling a force block hole with an optimal vertical force component angle to the residual sliding force according to the direction of the residual sliding force of different slopes;

[0016] (3) Vertical piles, walls and force blocks in the rock mass can be drilled in one go;

[0017] (4) The drilling and slag removal equipment is highly integrated, achieving the goal of improving construction efficiency and saving construction and equipment costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the drilling rig of the utility model;

[0019] Figure 2 for Figure 1 Cross-section of the middle AA;

[0020] Figure 3 for Figure 2 Cross-section of the middle BB;

[0021] Figure 4 for Figure 2 Cross-section of the middle CC;

[0022] Figure 5 for Figure 2 Cross-section of the middle DD;

[0023] Figure 6 for Figure 3 Cross-section of EE;

[0024] Figure 7 This is a force diagram of the anti-sliding pile of the utility model;

[0025] Figure 8 for Figure 7 Enlarged view of middle d;

[0026] Fig. 9 It is a three-dimensional schematic diagram of the force dividing block of the utility model;

[0027] like Figures 1 to 9 As shown, the marks in the figure represent respectively:

[0028] 1. Vertical drilling assembly, 2. Conical drilling assembly;

[0029] 11. Cylindrical drill, 12. U-shaped steel frame for vertical drill, 21. U-shaped steel frame for conical drill, 22. Conical drill, 23. Rotating assembly, 24. Slag discharge system;

[0030] 111. Cylinder, 112. Agitator assembly, 113. Rotor of rotating motor, 114. Fixed shaft of rotating motor, 1121. Agitator base, 1122. Agitator, 121. Wing plate, 122. Web plate, 123. Connecting plate, 124. Vertical drilling slag suction pipe hole;

[0031] 211. Cone drill lower side guard plate, 212. Cone drill upper side guard plate, 213. Cone drill left side guard plate, 214. Cone drill right side guard plate, 215. Cone drill rear guard plate, 216. Vertical drilling slag discharge pipe hole, 217. Slag discharge main pipe hole, 218. Slide, 221. Cutter head assembly, 222. Power assembly, 223. Horizontal hydraulic cylinder, 2211. Cutter head, 2212. Cutting slag feed hole, 2213. Cutter, 2214. Steel support, 2221. Protective Shield shell, 2222. Baffle, 2223. Conical drilling slag suction pipe hole, 2224. Rotating shaft hole, 2225. Bottom plate, 2226. Conical drilling slag discharge pipe hole, 2227. Peeling motor, 2228. Peeling motor rotating shaft, 2229. Sliding rotating shaft, 231. Linkage plate, 232. Rotating hydraulic cylinder, 241. Slag discharge main pipe, 242. Conical drilling slag discharge pipe, 243. Telescopic pipe, 244. Vertical drilling slag discharge pipe, 245. Suction head, 246. Slag suction valve;

[0032] a. Rock and soil slope, b. Anti-sliding piles, c. Force distribution block, T. Sliding force, M T .Moment of sliding force, T v .Vertical component of sliding force, T h .Horizontal component of sliding force, M Tv .The torque of the vertical component of the sliding force. DETAILED DESCRIPTION

[0033] The following is a further detailed description of the features of the present invention and other related features through embodiments in conjunction with the accompanying drawings to facilitate understanding by technicians in the same industry:

[0034] Example: Figures 1 to 9 As shown, the present embodiment relates to a variable sawtooth angle anti-slip pile or retaining wall drilling drill, which mainly includes a conical drill assembly 2 and a vertical drill assembly 1 which are arranged relatively up and down, the vertical drill assembly 1 is used for drilling vertical holes in rock and soil, the conical drill assembly 2 is used for drilling force block holes in rock and soil, and the horizontal angle of the conical drill assembly 2 is adjustable, where the horizontal angle of the conical drill assembly 2 refers to the horizontal angle between the conical drill 22 of the conical drill assembly 2 and the conical drill U-shaped steel frame 21 of the conical drill assembly 2. In addition, a slag removal system 24 is also provided on the vertical drill assembly 1 and the conical drill assembly 2 for removing soil slag generated when drilling rock and soil. Figures 7-9As shown, taking the anti-sliding pile b as an example, a vertical hole is drilled in the rock slope a by the vertical drilling assembly 1, a conical hole is drilled in the rock slope a by the conical drilling assembly 2, and then a force component hole is drilled in the rock body by horizontal rotation drilling to form a force component c. The force component c can exert the vertical component of the remaining sliding force, provide the same horizontal force to produce a reverse bending moment, and improve the bending resistance of the anti-sliding pile. Specifically, the anti-sliding pile b includes a pile body and a force component c (a plurality of force components c form a sawtooth structure). The sliding force T of the rock slope a acts on the anti-sliding pile b, and the sliding force T is decomposed into the vertical component of the sliding force T v and the horizontal component of the sliding force T h , the moment of the sliding force T is M T , the pile is used to resist the horizontal component of sliding force T h , the force block c is used to convert the vertical component of the sliding force T v Converted into torque M Tv , and the moment M Tv With torque M T On the contrary, the bending resistance of the anti-slide pile is further improved.

[0035] like Figures 1 to 6 As shown, the vertical drill assembly 1 includes a vertical drill U-shaped steel frame 12 and a cylindrical drill 11 installed in the vertical drill U-shaped steel frame 12. The vertical drill U-shaped steel frame 12 is formed by two wing plates 121 arranged opposite to each other and a web 122 whose two ends are respectively connected to the tops of the two wing plates 121. The cylindrical drill 11 includes a cylinder 111 and a rotating motor rotor 113 installed on the central axis of the cylinder 111. The two ends of the rotating motor fixed shaft 114 on the rotating motor rotor 113 are respectively fixedly connected to the two wing plates 121. The cylinder 111 is provided with a plurality of stirring blade assemblies 112 along its circumference. The stirring blade assemblies 112 include a stirring blade base 1121 and a stirring blade 1122 installed on the stirring blade base 1121. The stirring blade 1122 is arranged to be tilted outwards to facilitate stirring and digging rock and soil. The rotating motor rotor 113 drives the cylinder 111 to rotate, so as to drive the stirring blade 1122 on the cylinder 111 to stir and dig rock and soil, so as to drill a vertical hole.

[0036] like Figures 1 to 6As shown, the conical drill assembly 2 includes a conical drill U-shaped steel frame 21, a conical drill 22 and a rotating assembly 23. The conical drill U-shaped steel frame 21 is a box-shaped structure with a side opening. The conical drill 22 and the rotating assembly 23 are both installed in the conical drill U-shaped steel frame 21. There are multiple conical drills 22, a single conical drill 22 is horizontally arranged, and multiple conical drills 22 are arranged vertically. The conical drill U-shaped steel frame 21 is surrounded by a conical drill lower side guard plate 211, a conical drill upper side guard plate 212, a conical drill left side guard plate 213, a conical drill right side guard plate 214 and a conical drill rear guard plate 215. The conical drill lower side guard plate 211 is connected to the top two ends of the web 122 through two connecting plates 123. The cone drill 22 includes a cutter head assembly 221, a power assembly 222 and a horizontal hydraulic cylinder 223 which are connected in sequence. The power assembly 222 drives the cutter head assembly 221 to rotate. One end of the horizontal hydraulic cylinder 223 is fixed to the rotating assembly 23 (linkage plate 231), and the other end is connected to the power assembly 222 (bottom plate 2225) through a telescopic rod to drive the cone drill 22 to move horizontally, that is, the horizontal hydraulic cylinder 223 drives the cone drill 22 in the cone drill U-shaped steel frame 21 to move outside the cone drill U-shaped steel frame 21 or makes the cone drill 22 outside the cone drill U-shaped steel frame 21 retract into the cone drill U-shaped steel frame 21. The rotating assembly 23 includes a linkage plate 231 and a rotating hydraulic cylinder 232. The linkage plate 231 is vertically arranged and both vertical ends of the linkage plate 231 are connected to the rotating hydraulic cylinder 232. The rotating hydraulic cylinder 232 is fixed on the U-shaped steel frame 21 of the cone drill (the lower side guard plate 211 of the cone drill and the upper side guard plate 212 of the cone drill). In this embodiment, each of the vertical ends of the linkage plate 231 is respectively connected to two rotating hydraulic cylinders 232. The rotating hydraulic cylinder 232 drives the linkage plate 231 to rotate, thereby driving the cone drill 22 to rotate. In addition, the left side guard plate 213 of the cone drill and the right side guard plate 214 of the cone drill are respectively provided with a plurality of slide grooves 218 along their length directions, and a sliding shaft 2229 is respectively connected to both ends of the baffle 2222, and the sliding shaft 2229 corresponds to the slide groove 218. When the rotating assembly 23 drives the cone drill 22 to rotate, the sliding shaft 2229 rotates in the slide groove 218 (will not separate from the slide groove 218), which can limit the cone drill 22, and can play a guiding role when the horizontal hydraulic cylinder 223 drives the cone drill 22 to move horizontally.

[0037] The cutterhead assembly 221 includes a cutterhead 2211, a cutting slag feed hole 2212 and a cutting knife 2213. The cutterhead 2211 is conical, and a plurality of cutting slag feed holes 2212 are arranged along the circumference of the cutterhead 2211. The extending direction of the cutting slag feed hole 2212 is from the side of the cutterhead 2211 to the middle of the cutterhead 2211, and the inner diameter gradually decreases. A cutting knife 2213 is installed at the edge of each cutting slag feed hole 2212 on the outer wall of the cutterhead 2211, and the cutting knife 2213 is also arranged along the circumference of the cutterhead 2211, and the extending direction of the cutting knife 2213 is also the same as the extending direction of the cutting slag feed hole 2212, that is, the extending direction of the cutting knife 2213 is from the side of the cutterhead 2211 to the middle of the cutterhead 2211. The cutting knife 2213 is used for cutting rock and soil, and the cut rock and soil can enter the inside of the cutterhead 2211 through the cutting slag feed hole 2212.

[0038] The power assembly 222 includes a protective cover 2221, a baffle 2222, a base plate 2225 and a rotary cutting motor 2227. The protective cover 2221 is cylindrical, and the baffle 2222 and the base plate 2225 are both circular. The baffle 2222 and the base plate 2225 are respectively installed at both ends of the protective cover 2221. A shaft hole 2224 is opened at the center of the baffle 2222. The rotary cutting motor 2227 is fixed between the baffle 2222 and the base plate 2225. The rotary cutting motor shaft 2228 on the rotary cutting motor 2227 passes through the shaft hole 2224 on the baffle 2222 and is connected to the center of the inner wall of the cutter disc 2211. The rotary cutting motor 2227 drives the rotary cutting motor shaft 2228 thereon to rotate, so as to drive the cutter disc 2211 to rotate, so as to realize the cutting of rock and soil by the cutting knife 2213. The cutter disc 2211 is rotatably connected to the baffle plate 2222 to prevent rock and soil from entering through the gap between the cutter disc 2211 and the baffle plate 2222. The rotary cutting motor shaft 2228 is provided with a plurality of steel supports 2214 along its circumference. The rotary cutting motor shaft 2228 is connected to the inner wall of the cutter disc 2211 through the steel supports 2214 to play a role in connection reinforcement, and each steel support 2214 is located between two adjacent cutting slag holes 2212 of the cutter disc 2211, which will not hinder rock and soil from entering the cutter disc 2211. The cutter disc 2211 is driven to rotate by the rotary cutting motor 2227 to drive the cutting blade 2213 on the cutter disc 2211 to cut rock and soil, and the horizontal hydraulic cylinder 223 is used to drive the cone drill 22 to move horizontally to drill the force distribution block hole.

[0039] like Figures 1 to 6As shown, the slag discharge system 23 includes a slag discharge main pipe 241, a cone drill slag discharge pipe 242, a telescopic pipe 243 and a vertical drill slag discharge pipe 244. The slag discharge main pipe 241 is vertically arranged in the cone drill U-shaped steel frame 21 and the two ends of the slag discharge main pipe 241 are in the form of telescopic pipes 243. A vertical drill slag discharge pipe hole 216 and a slag discharge main pipe hole 217 are respectively opened on the cone drill lower side guard plate 211 and the cone drill upper side guard plate 212. The two ends of the slag discharge main pipe 231 are respectively installed in the vertical drill slag discharge pipe hole 216 and the slag discharge main pipe hole 217, and the upper end of the slag discharge main pipe 241 is connected to the slag suction device. A conical drill slag suction pipe hole 2223 is provided on the side of the baffle 2222, and a conical drill slag discharge pipe hole 2226 is provided on the side of the bottom plate 2225. The position and size of the conical drill slag suction pipe hole 2223 correspond to the position and size of the conical drill slag discharge pipe hole 2226 respectively. A conical drill slag discharge pipe 242 is provided between the conical drill slag suction pipe hole 2223 and the conical drill slag discharge pipe hole 2226. A conical drill slag discharge pipe 242 is provided with a slag suction valve 246. The conical drill slag discharge pipe 242 is connected to the slag discharge main pipe 241 through a telescopic pipe 243. The setting of the telescopic pipe 243 can adapt to the horizontal movement of the conical drill 22. The rotary cutting motor 2227 drives the cutting knife 2213 on the cutter disc 2211 to cut the rock and soil. The cut rock and soil enter the inside of the cutter disc 2211 through the cutting slag inlet hole 2212, and open the slag suction valve 246 on the cone drill slag discharge pipe 242, and then pass through the cone drill slag discharge pipe 242, the telescopic pipe 243 and the slag discharge main pipe 241 in turn, and finally are discharged through the slag suction device. The lower end of the slag discharge main pipe 241 is connected to one end of the vertical drill slag discharge pipe 244, and the other end of the vertical drill slag discharge pipe 244 extends into the vertical drill U-shaped steel frame 12 and is arranged close to the cylindrical drill 11 to facilitate the suction of soil debris. Among them, a vertical drill slag suction pipe hole 124 is opened on the web 122 to allow the vertical drill slag discharge pipe 244 to pass through, and a suction head 245 with a slag suction valve 246 is installed at the lower end of the vertical drill slag discharge pipe 244. The rotating motor rotor 113 drives the stirring knife 1122 on the cylinder 111 to stir and excavate the rock and soil, and opens the slag suction valve 246 on the suction head 245. The stirred rock and soil passes through the suction head 245, the vertical drill slag discharge pipe 244 and the slag discharge main pipe 241, and is finally discharged through the slag suction device.

[0040] The beneficial technical effects of this embodiment are:

[0041] (1) Use cone drilling to drill force block holes in the rock body to improve the bending resistance of anti-slide piles or retaining walls;

[0042] (2) Drilling a force block hole with an optimal vertical force component angle to the residual sliding force according to the direction of the residual sliding force of different slopes;

[0043] (3) Vertical piles, walls and force blocks in the rock mass can be drilled in one go;

[0044] (4) The drilling and slag removal equipment is highly integrated, achieving the goal of improving construction efficiency and saving construction and equipment costs.

[0045] Although the above embodiments have described the concepts and embodiments of the purpose of the utility model in detail with reference to the accompanying drawings, ordinary technicians in this field can recognize that various improvements and modifications can still be made to the utility model without departing from the scope of the claims, so they are not described one by one here.

Claims

1. A variable sawtooth angle anti-slip pile or retaining wall drilling drill, characterized in that: It comprises a cone drill assembly and a vertical drill assembly which are relatively arranged up and down; the cone drill assembly comprises a cone drill U-shaped steel frame, a cone drill and a rotating assembly, the cone drill U-shaped steel frame is a box-shaped structure with a side opening, the cone drill and the rotating assembly are both installed in the cone drill U-shaped steel frame, a plurality of cone drills are provided, a single cone drill is horizontally arranged and a plurality of cone drills are vertically arranged, the rotating assembly comprises a linkage plate and a rotating hydraulic cylinder, the linkage plate is vertically arranged and the vertical ends of the linkage plate are both connected to the rotating hydraulic cylinder, the rotating hydraulic cylinder is fixed on the cone drill U-shaped steel frame, the rotating hydraulic cylinder drives the linkage plate to rotate, the cone drill comprises a cutter disc assembly, a power assembly and a horizontal hydraulic cylinder which are connected in sequence, the power assembly drives the cutter disc assembly to rotate, one end of the horizontal hydraulic cylinder is fixed on the linkage plate and the other end is connected to the power assembly through a telescopic rod to drive the cone drill to move horizontally.

2. A variable sawtooth angle anti-sliding pile or retaining wall drilling drill according to claim 1, characterized in that: The U-shaped steel frame of the cone drill is surrounded by a lower side guard plate, an upper side guard plate, a left side guard plate, a right side guard plate and a rear guard plate of the cone drill. The left side guard plate and the right side guard plate of the cone drill are respectively provided with a plurality of slide grooves along their length directions; the cutter disc assembly comprises a conical cutter disc and a plurality of cutting slag feed holes arranged along the circumference of the cutter disc, and a cutting knife is installed at the edge of each cutting slag feed hole on the outer wall of the cutter disc; the power assembly comprises a protective cover, a baffle, a bottom plate and a rotary cutting motor, The baffle plate and the base plate are respectively installed at both ends of the protective cover shell, a shaft hole is provided at the center of the baffle plate, the rotary cutting motor is fixed between the baffle plate and the base plate, the rotary cutting motor shaft on the rotary cutting motor passes through the shaft hole on the baffle plate and is connected with the center of the inner wall of the cutter disc, a plurality of steel supports are arranged along the circumference of the rotary cutting motor shaft, the rotary cutting motor shaft is connected with the inner wall of the cutter disc through the steel supports, and sliding shafts corresponding to the slide grooves are respectively connected at both ends of the baffle plate.

3. A variable sawtooth angle anti-sliding pile or retaining wall drilling drill according to claim 2, characterized in that: The cutting slag feed hole on the cutter disc extends from the side of the cutter disc to the middle of the cutter disc and the inner diameter of the cutting slag feed hole gradually decreases. The cutting blade extends from the side of the cutter disc to the middle of the cutter disc.

4. A variable sawtooth angle anti-sliding pile or retaining wall drilling drill according to claim 2, characterized in that: The vertical drill assembly includes a vertical drill U-shaped steel frame and a cylindrical drill installed in the vertical drill U-shaped steel frame. The vertical drill U-shaped steel frame is formed by two oppositely arranged wing plates and a web with two ends respectively connected to the top of the two wing plates. The web is connected to the lower side guard plate of the conical drill through a connecting plate.

5. A variable sawtooth angle anti-sliding pile or retaining wall drilling drill according to claim 4, characterized in that: The cylindrical drill comprises a cylinder and a rotating motor rotor mounted on the central axis of the cylinder, the two ends of the rotating motor fixed shaft on the rotating motor rotor are respectively fixedly connected to the two wing plates, the cylinder is provided with a plurality of stirring blade assemblies along its circumference, and the stirring blade assemblies comprise a stirring blade base and a stirring blade mounted on the stirring blade base.

6. A variable sawtooth angle anti-sliding pile or retaining wall drilling drill according to claim 4, characterized in that: A conical drill slag suction pipe hole is provided on the side of the baffle, and a conical drill slag discharge pipe hole is provided on the side of the bottom plate. A conical drill slag discharge pipe is connected between the conical drill slag suction pipe hole and the conical drill slag discharge pipe hole. The conical drill slag discharge pipe is connected to the slag discharge main pipe through a telescopic pipe. The slag discharge main pipe is vertically arranged in the conical drill U-shaped steel frame and both ends of the slag discharge main pipe are in the form of telescopic pipes.

7. A variable sawtooth angle anti-sliding pile or retaining wall drilling drill according to claim 6, characterized in that: The lower end of the slag discharge main pipe is connected to one end of the vertical drill slag discharge pipe, and the other end of the vertical drill slag discharge pipe extends into the vertical drill U-shaped steel frame and is arranged close to the cylindrical drill. A suction head with a slag suction valve is installed on the vertical drill slag discharge pipe.

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