CN220599702U - An airbag wall-protecting drill bit-changing rectangular deep hole drilling rig - Google Patents

Abstract

The utility model discloses a rectangular deep hole drilling rig with an airbag wall-protecting drill bit, which includes a drilling rig with a cable and a drilling rig that is hoisted at the lower end of the cable. The drilling rig includes a pipeline fixing frame, a rock slag processing mechanism and a multi-functional drilling rig that are connected and arranged in sequence. Components, the rock slag processing mechanism includes a mixing device, a crushing device, a slag suction system, a slag discharge system and a grouting system; an airbag component is installed on the periphery of the pipe fixing frame or both the pipe fixing frame and the mixing device; the multi-functional drill assembly includes several Cylindrical drill assembly, U-shaped fork plate, sliding reaction frame and horizontal hydraulic cylinder. The horizontal hydraulic cylinder is fixed on the sliding reaction frame and drives the U-shaped fork plate to move laterally. The advantages of this utility model are: through cables, air bags, and horizontal and vertical cylindrical drill assemblies with cutters and hobs arranged at intervals, it is possible to drill horizontal cantilevers or drills in deep soft soil, gravel, pebbles, accumulations and other strata. Purpose of rectangular pile hole with haunched horizontal cantilever structure.

Description

An airbag wall-protecting drill bit-changing rectangular deep hole drilling rig

Technical field

The utility model relates to the technical field of anti-slip pile boring machine equipment, in particular to an airbag wall-protecting drill bit-changing rectangular deep hole drilling machine.

Background technique

In projects such as slope support, roadbed construction, foundation pit excavation, and tunnel entrance and exit construction, anti-slide piles are a type of pile that can transfer the lateral thrust of the rock and soil mass to the stable stratum below the sliding surface, resisting the lateral thrust. The most effective measures to control engineering and geological disasters. Anti-slide piles are divided into rectangular cross-section anti-slide piles and circular cross-section anti-slide piles. Rectangular anti-sliding piles have the advantages of large lateral stiffness and high single pile bearing capacity, which can effectively enhance the anti-sliding force and improve the anti-sliding coefficient. Therefore, rectangular cross-section anti-slide piles are widely used in various engineering fields.

The traditional rectangular cross-section anti-slide pile has a large cross-section and cannot fully utilize the strength of the rock and soil in front of the pile. For anti-slide piles with a horizontal cantilever structure, the horizontal cantilever can make full use of the strength of the rock and soil in front of the pile and improve the anti-sliding ability of the anti-slide pile. However, it is extremely difficult to form holes for horizontal cantilever piles with rectangular anti-slide piles. big. Traditional rectangular cross-section anti-slide piles usually use manual excavation and mechanical excavation. 65% of the total collapse accidents caused by manual digging pile construction are low in efficiency and high cost. Mechanical excavation is safer and more efficient. For broken rock and soil such as soft soil, gravel, pebbles, and accumulations, measures such as mud wall protection must be used during pile hole excavation to prevent hole collapse. Therefore, the use of mechanical drilling to dig pile holes with horizontal cantilevered rectangular anti-slide piles in soft soil and broken rock and soil layers is of great significance to ensure the safety of construction workers and improve efficiency.

At present, there are various drilling equipment for rectangular drilling machines, such as:

Patent No. CN 106836354 A "Mechanical Hole Forming Device for Rectangular Anti-Slide Piles" uses multiple cutting blades to form a rectangular shovel head. The rear end of the shovel head is equipped with a counterweight or hydraulic propulsion device to realize drilling of rectangular pile holes.

Patent No. CN 103244053 A "Rectangular Drilling Machine" mainly uses two cam bodies to drive two T-shaped cutter heads evenly distributed at the bottom of the steel frame to move toward each other and reciprocate, cutting the soil into a rectangular hole.

Patent No. CN 104533300 A "Rectangular Drilling Machine" A conical drill bit is set at the bottom of the rectangular transmission box and cross-shaped long knives are set on the four sides. The conical drill bit drills to form a circular pile hole, and then is cut and trimmed by rotating the cross-long knives. It is a rectangular pile hole.

Patent No. CN 207715083 U "A rectangular anti-slip pile hole drilling machine" mainly sets a circular drill barrel and a rectangular drill barrel at the bottom of the drill pipe. The circular drill barrel is screwed into a circular pile hole, and then cut through the rectangular drill barrel. The soil surrounding the circular pile hole forms a rectangular pile hole.

Patent No. CN 105951798 A "A Rectangular Drilling Machine" mainly drives four concave-waisted cylinders with stirrers through a motor to cut soil and drill into rectangular pile holes.

Existing drilling machines mainly form vertical rectangular pile holes in the rock and soil, but there are the following problems: (1) It is impossible to drill rectangular anti-slide pile holes with a horizontal cantilever or a haunched horizontal cantilever structure in the soil. , and it is even more impossible to drill in soft soil, gravel, pebbles, accumulations and other strata; (2) Use other machinery (grabs) or auxiliary measures (mud positive circulation slag discharge method) to clean the debris in the pile holes, The integration of drilling and slag discharge equipment is low, and the drilling construction efficiency is low and the cost is high.

Contents of the invention

The purpose of this utility model is to provide an airbag wall-protecting drill bit-changing rectangular deep hole drilling rig based on the above-mentioned shortcomings of the prior art. The drilling rig is suitable for drilling deep pile holes in soft soil, gravel, pebbles, accumulations and other strata. Lifting is carried out by cables, and a vertical and horizontal multifunctional cylindrical drill with reamers and hobs arranged at intervals is set at the bottom of the drilling rig. The hob blade is higher than the reamer, which facilitates the reamer for crushing after the hob crushes the rock; air bag cover Located on the periphery of the drilling rig, the air bag is inflated during the drilling of pile holes by the drilling rig. The air bag supports the rock and soil surrounding the pile holes and follows the drilling of the drilling rig. First, the pressure generated by the drilling rig's own weight drives the vertical axis of the multi-functional drilling assembly. Drill vertical rectangular pile holes to the drill bit to the design depth of the horizontal cantilever; then drill the rectangular pile holes of the horizontal cantilever through a multi-functional cylindrical drill with a horizontal multi-stage hydraulic device on the back, or use a multi-functional cylindrical drill along the vertical and horizontal directions At the same time, the axel and horizontal cantilever pile holes are drilled. After the drilling is completed, the multi-functional cylindrical drill is recovered; finally, the multi-functional cylindrical drill continues to drill vertically to the designed depth, which can be achieved in soft soil, gravel, pebbles, accumulations, etc. A drilling rig is used to drill deep pile holes in the stratum with horizontal cantilevers or rectangular anti-slide piles with haunched horizontal cantilevers, saving construction time and construction costs, improving work efficiency, and ensuring project quality and the safety of construction personnel.

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

An airbag wall-type drill bit-changing rectangular deep-hole drilling rig, characterized in that the rectangular deep-hole drilling rig includes a drilling rig with a cable and a drilling rig that is hoisted at the lower end of the cable. Pipe holder, rock slag handling mechanism and multi-function drilling assembly, including:

The rock slag processing mechanism includes a mixing device, a crushing device, a slag suction system, a slag discharge system and a grouting system. The mixing device includes a mixing box and a mixing mechanism installed on the mixing box. The suction of the mixing box The slag port is connected to the slag suction system through the crushing device, and the slag discharge port of the mixing box is connected to the slag discharge system; the periphery of the pipe fixing frame or the pipe fixing frame and the stirring device An airbag assembly is installed on both peripheries. The airbag assembly includes an airbag unit arranged along the periphery of the pipe fixing frame or both the pipe fixing frame and the stirring device. The airbag unit is connected to the airbag unit through a trachea and is located on the ground. The air pump on the air bag unit, the air bag unit is fixed on the pipe fixing frame through a hoop, and air valves are provided at the upper and bottom parts of the air bag unit;

The multi-functional drill assembly includes a number of cylindrical drill assemblies, a U-shaped fork plate, a sliding reaction frame and a horizontal hydraulic cylinder. The cylindrical drill assembly is installed on the U-shaped fork plate and is arranged vertically and horizontally. Arranged in a matrix, the horizontal hydraulic cylinders are fixed on the sliding reaction frame and drive the U-shaped fork plate to move laterally.

The drilling rig includes a vehicle-mounted platform, steel columns, pull rods, hinge shafts, guide rails, sliders, steel suspension beams, winch motors and cable brackets. The steel columns are vertically installed on the vehicle-mounted platform, and the upper end of the pull rod The upper end of the steel column is hinged, and the lower end is hinged with the hinge shaft fixed on the vehicle platform. The guide rail is arranged vertically and fixed along the steel column. The slider is slidably assembled on the guide rail. The steel suspension beam is fixed on the slider, the hoisting motor is fixed on the steel suspension beam, and the cable bracket is fixed below the steel suspension beam. The hoisting motor drives the cable in the vertical direction. Lifting movement in the direction.

The stirring mechanism includes a main gear and a number of auxiliary gears that are meshed and driven with the main gear. The main gear is driven to rotate by a stirring motor. A stirring rod extending into the mixing box is coaxially provided on the main gear. The main rotating shaft is provided with stirring blades; the auxiliary gear is coaxially provided with an auxiliary stirring shaft extending into the mixing box, and the auxiliary stirring shaft is provided with stirring blades.

The slag suction system includes a slag suction main pipe and a multi-functional slag suction branch branched from the suction port of the slag suction main pipe. The suction head of the multi-functional slag suction branch pipe is connected to the multi-function drill assembly. Each suction head is provided with a multifunctional slag suction valve, and the multifunctional slag suction branch pipe and the slag suction main pipe are connected through a telescopic tube.

The grouting system includes a main grouting pipe, a grouting pump and a multi-functional grouting branch pipe. One end of the main grouting pipe is connected to the grouting pump located on the ground, and the other end is connected to several multi-functional grouting branch pipes. , the nozzles of the multi-functional grouting branch pipes are connected to the multi-functional drill assembly, each nozzle is provided with a multi-functional grouting valve, between the multi-functional grouting branch pipes and the main grouting pipe Connected via telescopic tube.

The slag discharge system includes a slag discharge pipe and a slag discharge pump. One end of the slag discharge pump is connected to the slag discharge pipe, and the other end is connected to the slag discharge port on the mixing box.

The slag suction main pipe, the grouting main pipe and the slag discharge pipe are all arranged and fixed along the pipeline fixing frame.

The U-shaped fork plate is composed of a web, wing plates provided on both sides of the web, and a steel support provided in the middle of the web. The web includes a horizontal web and a vertical web; The cylindrical drill assembly includes two cylinders, a motor that drives the cylinders to rotate, several hob assemblies arranged at intervals on the surface of the cylinder, and several reamer assemblies arranged between adjacent hob assemblies. The hobs The assembly includes a hob base and a circle of hobs fixed on the hob base. The reamer assembly includes a reamer base and a reamer that is tilted and fixed on the reamer base. The motor The rotating shaft penetrates the cylinders on both sides and the ends of the rotating shaft are correspondingly arranged in the rotating shaft holes of the wing plates on both sides of the U-shaped fork plate. The outer shell of the motor is welded and fixed on the steel support.

The sliding reaction frame includes a reaction plate, a rail plate and a connecting plate. The rail plate is installed on the top of the reaction plate. T-shaped slide rails are fixed on both sides of the bottom of the rail plate. The connection plate The plates are respectively fixed on both sides of the web of the U-shaped fork plate. A slide block is fixed on the top of the connecting plate, and a T-shaped sliding block that matches the T-shaped slide rail is provided in the sliding block. groove, the cylinder end face of the horizontal hydraulic cylinder is fixed on the reaction plate of the sliding reaction frame, and the piston rod of the horizontal hydraulic cylinder is connected with the vertical web of the U-shaped fork plate .

The advantages of this utility model are:

(1) When drilling pile holes in soft soil, gravel, pebbles, soft rocks, accumulations and other strata, the air bag can effectively support the pile hole and prevent the pile hole from collapsing;

(2) When drilling a rectangular pile hole, there is no need for a large amount of mud in the pile hole to discharge slag and support the pile hole. It is only filled with mud after the hole is formed, which can save mud materials and improve construction efficiency;

(3) Through cables, air bags, and horizontal and vertical cylindrical drill assemblies with reamers and hobs arranged at intervals, it is possible to drill horizontal cantilevers or axels in deep soft soil, gravel, pebbles, accumulations, etc. Purpose of rectangular pile holes in horizontal cantilever structures;

(4) The multifunctional cylindrical drill can change directions in soft soil, gravel, pebbles, accumulations and other strata to achieve the purpose of drilling mutually perpendicular rectangular pile holes;

(5) Horizontal cantilever structures, haunched pile holes and vertical pile shafts can all be formed at one time without the need for other mechanical assistance, thereby improving construction efficiency and saving construction and equipment costs;

(6) The rock is crushed twice by the crushing box, which can better discharge the pile hole and prevent the clogging of the slag discharge pipe;

(7) The drilling rig is highly integrated and has both drilling and slag discharge functions, which enables uninterrupted synchronous drilling and slag discharge, reduces construction procedures, saves construction costs, and improves drilling efficiency.

Description of the drawings

Figure 1 is a schematic diagram of a rectangular deep hole drilling rig with an airbag wall-protecting drill bit changing direction according to the present invention;

Figure 2 is a schematic diagram of the cross-sectional positions of the utility model's airbag wall-protecting drill bit-changing rectangular deep-hole drilling rig;

Figure 3 is a partial schematic diagram of a rectangular deep hole drilling rig with an airbag wall-protecting drill bit changing direction according to the present invention;

Figure 4 is a cross-sectional view of A-A in Figure 2;

Figure 5 is the B-B cross-sectional view in Figure 2;

Figure 6 is a cross-sectional view of C-C in Figure 2;

Figure 7 is the D-D cross-sectional view in Figure 2;

Figure 8 is a schematic diagram of the multifunctional drill assembly of the present utility model;

Figure 9 is the E-E cross-sectional view in Figure 8;

Figure 10 is the F-F cross-sectional view in Figure 2;

Figure 11 is the G-G cross-sectional view in Figure 2;

Figure 12 is the H-H cross-sectional view in Figure 2;

Figure 13 is the I-I cross-sectional view in Figure 2;

Figure 14 is a schematic diagram of the airbag assembly of the present utility model;

Figure 15 is a schematic diagram of the construction process flow of the utility model airbag wall-protecting drill bit changing rectangular deep hole drilling rig (1);

Figure 16 is a schematic diagram of the construction process flow of the utility model airbag wall-protecting drill bit changing rectangular deep hole drilling rig (2);

As shown in Figure 1-16, the marks in the figure are respectively:

1. Multifunctional drilling assembly, 2. Mixing device, 3. Crushing device, 4. Slag suction system, 5. Pipe fixing frame, 6. Slag discharge system, 7. Grouting system, 8. Air bag assembly, 9 drilling vehicle;

11. Cylindrical drill assembly, 12. U-shaped fork plate, 13. Sliding reaction frame, 14. Horizontal hydraulic cylinder, 111. Cylinder, 112. Reamer assembly, 113. Hob assembly, 114. Motor, 115. Motor shaft , 1121. Reamer base, 1122. Reamer, 1131. Hob base, 1132. Hob, 121. Wing plate, 122. Vertical web, 123. Horizontal web, 124. Steel support, 125. Rotating shaft hole, 126. Through hole for multifunctional slag suction branch pipe, 127. Through hole for multifunctional slag suction main pipe, 128. Through hole for multifunctional grouting branch pipe, 129. Through hole for multifunctional grouting main pipe, 131. Reaction plate, 132 .Rail plate, 133. T-shaped slide rail, 134. Slide block, 135. T-shaped chute, 136. Connecting plate;

21. Mixing box, 22. Double-layered large blades, 23. Main mixing shaft, 24. Double-layered small blades, 25. Mixing auxiliary shaft, 26. Single-layered small blades, 27. Main gear, 28. Main gear isolation pad, 29. Auxiliary gear, 210. Auxiliary gear isolation pad, 211. Steel cover plate, 212. Stirring motor;

31. Crushing box, 32. Middle partition, 33. Connecting pipe, 34. Frame, 35. Fan motor, 36. Fan blades, 37. Crushing knife, 38. Filter;

41. Main slag suction pipe, 42. Multifunctional slag suction branch pipe, 43. Telescopic tube, 44. Suction head, 45. Multifunctional slag suction valve;

51. Top steel plate, 52. Middle steel plate, 53. Bottom steel plate, 54. Side risers, 55. Square through hole, 56. Slag discharge pipe fixing hole, 57. Grouting pipe fixing hole;

61. Slag discharge pipe, 62. Slag discharge pump;

71. Grouting main pipe, 72. Grouting pump, 73. Multifunctional grouting branch pipe, 74. Nozzle, 75. Multifunctional grouting valve;

81. Trachea, 82. Air pump, 83. Air bag unit, 84. Upper air valve, 85. Bottom air valve, 86. End hoop, 87. Middle hoop;

91. Hoist motor, 92. Fixed shaft, 93. Cable, 94. Cable bracket, 95. Steel suspension beam, 96. Slider, 97. Steel column, 98. Guide rail, 99. Hinge shaft, 910. Pull rod, 911. Vehicle-mounted platform;

a. Crushed rock formation, b. Drilling rig, c. Free section pile hole, d. Axillary hole, e. Horizontal cantilever pile hole, f. Embedded section pile hole.

Implementation

The features of the present utility model and other related features will be further described in detail through examples in conjunction with the accompanying drawings to facilitate the understanding of those skilled in the industry:

Embodiment: As shown in Figure 1-14, this embodiment relates to a rectangular deep hole drilling rig with an air bag retaining drill bit and a direction change. The rectangular deep hole drilling rig includes a drilling rig 9 and a drilling rig hoisted by a cable 93 on the drilling rig 9 , the drilling rig includes a rock slag processing mechanism and a multi-functional drilling assembly 1 connected in sequence from top to bottom. The rock slag processing mechanism is provided with a pipe fixing frame 5, and the pipe fixing frame 5 (or both the pipe fixing frame 5 and the stirring device 2 ) There is an air bag assembly 8 installed on the periphery; among them, the rock slag processing mechanism includes a stirring device 2, a crushing device 3, a slag suction system 4, a slag discharge system 6 and a grouting system 7.

As shown in Figure 1, the drilling vehicle 9 includes a winch motor 91, a fixed shaft 92, a cable 93, a cable bracket 94, a steel suspension beam 95, a slider 96, a steel column 97, a guide rail 98, a hinge shaft 99, a tie rod 910 and a vehicle platform. 911. The vehicle-mounted platform 911 has walking track wheels and is located on the ground. The steel column 97 is vertically erected at the front end of the vehicle-mounted platform 911. The pull rod 910 forms a diagonal bracing reinforcement for the steel column 97. Specifically, the upper end of the pull rod 910 is in contact with the steel column 911. The upper end of the column 97 is hinged, and the lower end is hinged with the hinge shaft 99 of the vehicle platform 911; the guide rail 98 is fixed along the steel column 97 to form a track in the vertical direction, and the slider 96 is slidably assembled on the guide rail 98 and Driven by the power mechanism, it can slide in the vertical direction; the steel suspension beam 95 is fixed on the slider 96, the cable bracket 94 is fixed on the bottom surface of the steel suspension beam 95, and the winch motor 91 is fixed on the steel suspension beam 95 through the fixed shaft 92 , the winch motor 91 is used to drive the cable 93 and the drilling rig hoisted at its lower end to perform lifting movements. It should be noted that due to the large self-weight of the drilling rig, the drilling rig can move downward under the pressure of its own weight, without the need to press down the drill pipe in the past, and the cable 93 has sufficient length to enable drilling of rectangular deep holes. Drilling needs.

As shown in Figure 1-9, the multi-functional drilling assembly 1 can be used for deep hole drilling of rectangular anti-slide piles, excavation of horizontal cantilever pile holes and excavation of axillary holes. The multifunctional drill assembly 1 includes several cylindrical drill assemblies 11, a U-shaped fork plate 12, a sliding reaction frame 13 and a horizontal hydraulic cylinder 14. The cylindrical drill assembly 11 is installed on the U-shaped fork plate 12 and is installed on both the vertical and horizontal planes. It is arranged in a matrix, that is, the multifunctional drill assembly 1 can form a rectangular excavation surface on both the vertical and horizontal planes. In this embodiment, the cylindrical drill assembly 11 is arranged in a right-angled plane, and the horizontal hydraulic cylinder 14 is fixed on the sliding reaction frame 13 and drives the U-shaped fork plate 12 to move laterally to drive the cylindrical drill assembly 11 to move synchronously laterally.

Among them, the U-shaped fork plate 12 is composed of a web, wing plates 121 provided on both sides of the web, and a steel support 124 provided in the middle of the web. The web includes a horizontal web 123 and a vertical web 122, which form The right-angled surface structure corresponds to the arrangement of the cylindrical drill assembly 11. The cylindrical drill assembly 11 includes two cylindrical drills and a motor 114 that drives the cylindrical drills to rotate. In this embodiment, the cylindrical drill assembly 11 is provided with 5 groups (a total of 10 cylindrical drills), and 2 groups of cylindrical drills are provided on the vertical surface. The drill assembly 11 (a total of 4 cylindrical drills) is provided with 4 groups of cylindrical drill assemblies 11 (a total of 8 cylindrical drills) on the horizontal plane. The cylindrical drill is composed of a cylinder 111, several hob assemblies 113 spaced apart on the surface of the cylinder 111, and several reamer assemblies 112 spaced between adjacent hob assemblies 113 on the surface of the cylinder 111. Specifically, the hob assemblies 113 The height of the protrusion on the cylinder 111 is higher than that of the reamer assembly 112. Therefore, when cutting the rock mass, the hob 1132 on the hob assembly 113 first contacts the rock mass, that is, the hob assembly 113 first crushes the integral rock surface into Several large rocks are then further cut into small-diameter rock blocks (or rock slag) through the reamer assembly 112; the hob assembly 113 includes a hob base 1131 and a hob fixed to the hob. A circle of hobs 1132 on the base 1131; the reamer assembly 112 includes a reamer base 1121 and a reamer 1122. The reamer 1122 is fixed by the reamer base 1121 to achieve an inclined installation posture to facilitate the drilling of the rock formation. Cutting. For rock mass, if the hob 1132 is used to directly crush the rock mass on the excavation surface or the reamer 1122 is used to directly cut the rock mass, the strength, hardness and wear resistance of the hob and reamer materials need to meet higher requirements, which will not only increase It is difficult to develop materials for hobs and reamers, which will also increase construction costs. The hob 1132 and the reamer 1122 are combined. The hob 1132 only fractures the rock mass on the excavation surface, which reduces the strength of the rock mass, making it easier for the reamer 1122 to cut the rock mass, thereby not only reducing the impact on the hob and the reamer. The requirements for material strength, hardness and wear resistance can also reduce the wear of the reamer and hob. Therefore, the method of using the hob 1132 to first fracture the rock mass on the excavation surface and then the reamer 1122 to cut the fractured low-strength rock mass can not only improve work efficiency, but also reduce tool wear and reduce construction costs. The steel support 124 is welded or bolted to the shell of the motor 114. The motor shaft 115 of the motor 114 drives the cylinders 111 on both sides to rotate. The ends of the motor shaft 115 are supported in the shaft holes 125 of the wing plates 121 on both sides. The sliding reaction frame 13 includes a reaction plate 131, a rail plate 132 and a connecting plate 136. The rail plate 132 is installed on the top of the reaction plate 131. T-shaped slide rails 133 are fixed on both sides of the bottom of the rail plate 132. The connecting plate 136 They are respectively fixed on both sides of the web of the U-shaped fork plate 12. A slide block 134 is fixed on the top of the connecting plate 136, and a T-shaped slide groove 135 matching the T-shaped slide rail 133 is provided in the slide block 134. A horizontal hydraulic cylinder The cylinder end face of 14 is fixed on the reaction plate 131 of the sliding reaction frame 13. The piston rod of the horizontal hydraulic cylinder 14 is connected with the vertical web 122 of the U-shaped fork plate 12. The horizontal hydraulic cylinder 14 drives the U-shaped fork plate. The vertical web 122 of 12 drives the slider 134 on the connecting plate 136 to move laterally, and due to the cooperation between the T-shaped slide groove 135 in the slider 134 and the T-shaped slide rail 133 on the rail plate 132, It can play a guiding role to ensure the stability and safety of the lateral movement of the multi-function drill assembly 1.

When the multifunctional drill assembly 1 performs deep hole drilling of rectangular anti-slip piles, the horizontal hydraulic cylinder 14 does not work (the piston rod of the horizontal hydraulic cylinder 14 is at the minimum stroke), and the cylindrical drill assembly in the multifunctional drill assembly 1 is on the horizontal plane. 11 works, the multi-function drill assembly 1 drills down a rectangular deep hole; when the multi-function drill assembly 1 excavates the horizontal cantilever pile hole, the horizontal hydraulic cylinder 14 works (the piston rod of the horizontal hydraulic cylinder 14 extends to the side ), the cylindrical drill assembly 11 on the vertical plane in the multi-function drill assembly 1 works, and the multi-function drill assembly 1 drills horizontal cantilever pile holes to the side; when the multi-function drill assembly 1 excavates the axel hole, The horizontal hydraulic cylinder 14 works (the piston rod of the horizontal hydraulic cylinder 14 extends to the side), the cylindrical drill assembly 11 on the vertical plane and the horizontal plane in the multi-function drill assembly 1 works, and the multi-function drill assembly 1 downwards and sideways Drill and add axillary holes.

In addition, the rail plate 132 is also provided with a multifunctional slag suction main pipe through hole 127 and a multifunctional grouting main pipe through hole 129, which are respectively used to fix the slag suction main pipe 41 of the slag suction system 4 and the grouting main pipe 71 of the grouting system 7. , the web is provided with a multifunctional slag suction branch pipe through hole 126 and a multifunctional grouting branch pipe through hole 128, which are respectively used for the fixed multifunctional slag suction branch pipe 42 of the slag suction system 4 and the multifunctional grouting branch pipe of the grouting system 7. 73. The multifunctional slag suction branch pipe 42 and the slag suction main pipe 41 are connected through a telescopic pipe 43, and the multifunctional grouting branch pipe 73 and the grouting main pipe 71 are also connected through a telescopic pipe 43, which facilitates the multifunctional drill assembly 1 when moving laterally. , the multifunctional slag suction branch pipe 42 and the multifunctional grouting branch pipe 73 also move accordingly.

As shown in Figure 1-14, the rock slag processing mechanism includes a stirring device 2, a crushing device 3, a slag suction system 4, a slag discharge system 6 and a grouting system 7.

Among them, the mixing device 2 mainly includes a mixing box 21 and a mixing mechanism. The mixing box 21 is fixedly installed on the upper surface of the sliding reaction frame 13 (rail plate 132). The mixing mechanism includes a main gear 27 and a plurality of auxiliary gears meshed with it. 29. The main gear 27 is driven to rotate by the stirring motor 212, which in turn drives the auxiliary gears 29 to rotate. The main gear 27 is coaxially provided with a main stirring shaft 23 extending into the mixing box 21, and the main stirring shaft 23 is provided with stirring blades. The mixing blades here adopt double-layer large blades 22; each auxiliary gear 29 is coaxially provided with an auxiliary stirring shaft 25 that extends into the mixing box 21. The auxiliary stirring shaft 25 is also provided with stirring blades, and some of the auxiliary stirring shafts 25 are provided with stirring blades. The stirring blades adopt double-layer small blades 24, and the stirring blades on the other part of the stirring auxiliary rotating shaft 25 adopt single-layer small blades 26. By stirring the rock mass and mud in the mixing box 21, uniformly mixed mud can be obtained to facilitate discharge. . In order to prevent the mud in the mixing box 21 from penetrating into the gear box where the main gear 27 and the auxiliary gear 29 are located during the mixing process, a main gear isolation pad 28 is provided at the connection point between the main mixing shaft 23 and the mixing box 21, and An auxiliary gear isolation pad 210 is provided at the connection point between the mixing auxiliary rotating shaft 25 and the mixing box 21 . As shown in Figure 3, on the top of the gear box where the main gear 27 and the auxiliary gear 29 are located is a steel cover plate 211 for connecting with the pipe fixing frame 5. The mixing box 21 is provided with a slag suction port and a slag discharge port.

The slag suction port of the mixing box 21 is connected to a slag suction system 4. The slag suction system 4 mainly includes a slag suction main pipe 41 and a multi-functional slag suction branch pipe 42. One end of the slag suction main pipe 41 passes through the crushing device 3 and the slag suction port of the mixing box 21. Connected, the other end (i.e., the suction end) of the main slag suction pipe 41 is connected to a plurality of multifunctional slag suction branch pipes 42, wherein the multifunctional slag suction branch pipes 42 extend into the multifunctional drill assembly 1, and the multifunctional slag suction branch pipes 42 The suction head 44 of 42 is close to the cylindrical drill assembly 11 so that it can suck the rock mass excavated by cutting and stirring. A multifunctional slag suction valve 45 is provided at the suction head 44 for controlling the opening and closing of the pipeline.

The sucked rock mass is crushed into fine particles by the crushing device 3 and then enters the mixing box 21. The crushing device 3 mainly includes a crushing box 31, a middle partition 32, a connecting pipe 33, a frame 34, a fan motor 35, and a fan blade. 36. The crushing knife 37 and the filter screen 38, and the middle partition 32 are arranged at an angle in the crushing box 31 to form a ramp that facilitates the flow of rock mass. The fan motor 35 is installed on the top plate in the crushing box 31 through the frame 34. The fan motor The rotating shaft of 35 is provided with fan blades 36. The high-speed rotating fan motor 35 and fan blades 36 can form a negative pressure suction in the slag suction main pipe 41, and a crushing knife 37 is installed at the installation place of the fan motor 35 so that the sucked slag can be sucked. The sucked rock mass must be crushed by the crushing knife 37 before it can enter the mixing box 21 through the connecting pipe 33. A screen 38 is provided on the end face of the fan motor 35 to filter large particles of rock mass to prevent the rock mass from flowing into the mixing box from the fan motor 35. Inside box 21.

The grouting outlet of the grouting system 7 extends into the multi-functional drill assembly 1. The grouting system 7 mainly includes a grouting main pipe 71, a grouting pump 72 and a multi-functional grouting branch pipe 73. One end of the grouting main pipe 71 is connected to the ground. The other end of the grouting pump 72 is connected with several multifunctional grouting branch pipes 73. The multifunctional grouting branch pipe 73 extends into the multifunctional drill assembly 1, and the nozzle 74 of the multifunctional grouting branch pipe 73 is close to the cylindrical drill assembly 11, and mud is injected into the rock mass through the grouting system 7, so that the rock mass and the mud are mixed. , to facilitate the extraction of the slag suction system 4, and a multifunctional grouting valve 75 is provided at the nozzle 74 for controlling the opening and closing of the pipeline.

The slag discharge port of the mixing box 21 is connected to the slag discharge system 6 on the ground. The slag discharge system 6 includes a slag discharge pipe 61 and a slag discharge pump 62. The lower end of the slag discharge pipe 61 is connected with the slag discharge port of the mixing box 61. Its port is extended downward to a certain depth to facilitate the extraction of more mud. The slag discharge pipe 61 drains the evenly stirred mud from the mixing box 21 to the ground through the slag discharge pump 62 for collection and processing.

As shown in Figure 1-14, the pipe fixing frame 5 has a box-shaped structure, including a top steel plate 51, a middle steel plate 52, a bottom steel plate 53 and a number of side risers 54 connecting the three. In addition, at the bottom of the pipe fixing frame 5 The steel plate 53 is provided with a square through hole 55 for installing the stirring motor 212. In addition, the top steel plate 51, the middle steel plate 52 and the bottom steel plate 53 are also provided with a slag pipe fixing hole 56 for the slag pipe 61 to pass through and a hole for injection. The grouting pipe fixing hole 57 passes through which the grouting main pipe 71 passes. In order to prevent the pipes from shaking during the drilling process, the pipe fixing frame 5 can provide a fixing effect for each passing pipe.

As shown in Figures 1-14, the airbag assembly 8 includes an airbag unit 83 arranged along the periphery of the pipe holder 5 (or both the pipe holder 5 and the stirring device 2) and an airbag unit 83 connected to the airbag unit 83 through an air pipe 81 and located on the ground. The air pump 82 can inflate the air bag unit 83 through the air pump 82. The air bag unit 83 is fixed on the side riser 54 of the pipe fixing frame 5 through the end hoop 86 and the middle hoop 87. The upper and bottom parts of the air bag unit 83 are provided with The air valves, respectively the upper air valve 84 and the bottom air valve 85, are used for inflating and exhausting the air bag unit 83. When the drilling rig is drilling pile holes, the air valve is closed and the air bag unit 83 is inflated through the air pump 82 so that the air bag unit 83 is supported on the rock and soil around the pile holes and the drilling rig is followed up; when it is not needed During support, the air valve can be opened to deflate the air bag unit 83.

This embodiment also has the following construction methods:

As shown in Figure 15, when only horizontal cantilever pile holes are constructed, the construction method steps are as follows:

(S1) In the broken rock formation a, use the cylindrical drill assembly 11 on the horizontal plane in the multifunctional drill assembly 1 on the drilling rig b to drill a vertical rectangular pile hole to form a free segment pile hole c, until the horizontal cantilever pile hole e Design depth, and the drilling rig b is supported on the rock and soil around the pile hole through the air bag assembly 8. During this process, the suction head 44 and the multi-functional suction head 44 on the multi-functional slag suction branch pipe 42 near the cylindrical drill assembly 11 on the horizontal plane The nozzles 74 on the grouting branch pipe 73 perform slag suction and grouting respectively.

(S2) After the multifunctional drill assembly 1 reaches the bottom design elevation of the horizontal cantilever pile hole e, close the cylindrical drill assembly 11 on the horizontal plane in the multifunctional drill assembly 1. During this process, close the cylindrical drill assembly on the horizontal plane. The suction head 44 on the multifunctional slag suction branch pipe 42 and the nozzle 74 on the multifunctional grouting branch pipe 73 near 11; open the cylindrical drill assembly 11 on the vertical plane in the multifunctional drill assembly 1 and the horizontal hydraulic cylinder 14, horizontally The piston rod of the hydraulic cylinder 14 extends toward the side of the rock mass to drive the multifunctional drill assembly 1 to move laterally, so that the cylindrical drill assembly 11 on the vertical surface of the multifunctional drill assembly 1 drills the rock mass, forming a Horizontal cantilever pile hole e, during this process, the suction head 44 on the multifunctional slag suction branch pipe 42 near the cylindrical drill assembly 11 on the vertical plane and the nozzle 74 on the multifunctional grouting branch pipe 73 perform slag suction and Grouting.

(S3) After the horizontal cantilever pile hole e is drilled to the designed length, close the cylindrical drill assembly 11 on the vertical plane in the multi-function drill assembly 1, and the piston rod of the horizontal hydraulic cylinder 14 shrinks to the minimum stroke, allowing the multi-function drill to The component 1 moves back into the free section pile hole c. During this process, the suction head 44 on the multifunctional slag suction branch pipe 42 near the cylindrical drill assembly 11 on the vertical plane and the nozzle on the multifunctional grouting branch pipe 73 are closed. 74; Open the cylindrical drill assembly 11 on the horizontal plane in the multi-function drill assembly 1, and drill down the embedded section pile hole f until the designed depth of the embedded section pile hole f. In this process, the cylindrical drill assembly 11 on the horizontal plane The suction head 44 on the multifunctional slag suction branch pipe 42 near the drill assembly 11 and the nozzle 74 on the multifunctional grouting branch pipe 73 perform slag suction and grouting respectively.

As shown in Figure 16, when constructing axillary holes and horizontal cantilever pile holes at the same time, the construction method steps are as follows:

(S1) In the broken rock formation a, use the cylindrical drill assembly 11 on the horizontal plane in the multi-functional drilling assembly 1 on the drilling rig b to drill a vertical rectangular pile hole to form a free section pile hole c, until the horizontal cantilever pile hole e Design depth, and the drilling rig b is supported on the rock and soil around the pile hole through the air bag assembly 8. During this process, the suction head 44 and the multi-functional suction head 44 on the multi-functional slag suction branch pipe 42 near the cylindrical drill assembly 11 on the horizontal plane The nozzles 74 on the grouting branch pipe 73 perform slag suction and grouting respectively.

(S2) After the multi-function drill assembly 1 reaches the bottom design elevation of the horizontal cantilever pile hole e, move the multi-function drill assembly 1 upward to the top design elevation of the axel hole d; open the multi-function drill assembly 1 in the vertical plane and the cylindrical drill assembly 11 and the horizontal hydraulic cylinder 14 on the horizontal plane. While the multi-function drill assembly 1 moves downward, the piston rod of the horizontal hydraulic cylinder 14 extends toward the side of the rock mass to drive the multi-function drill assembly 1 to perform lateral movement. Move in the direction, so that the cylindrical drill assembly 11 on the vertical and horizontal planes in the multi-functional drill assembly 1 drills the rock mass to form an axillary hole d. In this process, the cylindrical drill assembly 11 on the vertical and horizontal planes The suction head 44 on the multifunctional slag suction branch pipe 42 and the nozzle 74 on the multifunctional grouting branch pipe 73 near 11 perform slag suction and grouting respectively.

(S3) After the multi-function drill assembly 1 reaches the bottom design elevation of the horizontal cantilever pile hole e, the piston rod of the horizontal hydraulic cylinder 14 continues to extend toward the side of the rock mass to drive the multi-function drill assembly 1 to move laterally, thereby The cylindrical drill assembly 11 on the vertical plane in the multi-functional drill assembly 1 is used to drill the rock mass to form a horizontal cantilever pile hole e. In this process, the multi-functional slag suction machine near the cylindrical drill assembly 11 on the vertical plane The suction head 44 on the branch pipe 42 and the nozzle 74 on the multifunctional grouting branch pipe 73 perform slag suction and grouting respectively.

(S4) After the horizontal cantilever pile hole e is drilled to the designed length, close the cylindrical drill assembly 11 on the vertical plane in the multi-function drill assembly 1, and the piston rod of the horizontal hydraulic cylinder 14 shrinks to the minimum stroke, so that the multi-function drill The component 1 moves back into the free section pile hole c. During this process, the suction head 44 on the multifunctional slag suction branch pipe 42 near the cylindrical drill assembly 11 on the vertical plane and the nozzle on the multifunctional grouting branch pipe 73 are closed. 74; Open the cylindrical drill assembly 11 on the horizontal plane in the multi-function drill assembly 1, and drill down the embedded section pile hole f until the designed depth of the embedded section pile hole f. In this process, the cylindrical drill assembly 11 on the horizontal plane The suction head 44 on the multifunctional slag suction branch pipe 42 near the drill assembly 11 and the nozzle 74 on the multifunctional grouting branch pipe 73 perform slag suction and grouting respectively.

The advantages of this embodiment are:

(1) When drilling pile holes in soft soil, gravel, pebbles, soft rocks, accumulations and other strata, the air bag can effectively support the pile hole and prevent the pile hole from collapsing;

(2) When drilling a rectangular pile hole, there is no need for a large amount of mud in the pile hole to discharge slag and support the pile hole. It is only filled with mud after the hole is formed, which can save mud materials and improve construction efficiency;

(3) Through cables, air bags, and horizontal and vertical cylindrical drill assemblies with reamers and hobs arranged at intervals, it is possible to drill horizontal cantilevers or axels in deep soft soil, gravel, pebbles, accumulations, etc. Purpose of rectangular pile holes in horizontal cantilever structures;

(4) The multifunctional cylindrical drill can change directions in soft soil, gravel, pebbles, accumulations and other strata to achieve the purpose of drilling mutually perpendicular rectangular pile holes;

(5) Horizontal cantilever structures, haunched pile holes and vertical pile shafts can all be formed at one time without the need for other mechanical assistance, thereby improving construction efficiency and saving construction and equipment costs;

(6) The rock is crushed twice by the crushing box, which can better discharge the pile hole and prevent the clogging of the slag discharge pipe;

(7) The drilling rig is highly integrated and has both drilling and slag discharge functions, which enables uninterrupted synchronous drilling and slag discharge, reduces construction procedures, saves construction costs, and improves drilling efficiency.

Although the above embodiments have described in detail the concepts and embodiments of the present utility model with reference to the accompanying drawings, those of ordinary skill in the art can realize that the present utility model can still be modified without departing from the scope of the claims. There are various improvements and transformations, so I won’t go into details here.

Claims (9)

1. A rectangular deep-hole drilling rig with an airbag-type wall-protecting drill bit, characterized in that the rectangular deep-hole drilling rig includes a drilling rig with a cable and a drilling rig that is hoisted at the lower end of the cable. The drilling rig includes components connected in sequence from top to bottom. The pipe fixing frame, rock slag processing mechanism and multi-functional drilling assembly are provided, including: The rock slag processing mechanism includes a mixing device, a crushing device, a slag suction system, a slag discharge system and a grouting system. The mixing device includes a mixing box and a mixing mechanism installed on the mixing box. The suction of the mixing box The slag port is connected to the slag suction system through the crushing device, and the slag discharge port of the mixing box is connected to the slag discharge system; the periphery of the pipe fixing frame or the pipe fixing frame and the stirring device An airbag assembly is installed on both peripheries. The airbag assembly includes an airbag unit arranged along the periphery of the pipe fixing frame or both the pipe fixing frame and the stirring device. The airbag unit is connected to the airbag unit through a trachea and is located on the ground. The air pump on the air bag unit, the air bag unit is fixed on the pipe fixing frame through a hoop, and air valves are provided at the upper and bottom parts of the air bag unit; The multi-functional drill assembly includes a number of cylindrical drill assemblies, a U-shaped fork plate, a sliding reaction frame and a horizontal hydraulic cylinder. The cylindrical drill assembly is installed on the U-shaped fork plate and is arranged vertically and horizontally. Arranged in a matrix, the horizontal hydraulic cylinders are fixed on the sliding reaction frame and drive the U-shaped fork plate to move laterally. 2. A kind of air bag wall-protecting drill bit redirection rectangular deep hole drilling rig according to claim 1, characterized in that the drilling rig includes a vehicle-mounted platform, a steel column, a tie rod, a hinge shaft, a guide rail, a slider, a steel suspension beam, and a coil. Lift motor and cable bracket, the steel column is installed vertically on the vehicle platform, the upper end of the pull rod is hinged with the upper end of the steel column, and the lower end is hinged with the hinge shaft fixed on the vehicle platform, the guide rail Set vertically and fixed along the steel column, the slider is slidably assembled on the guide rail, the steel suspension beam is fixed on the slider, and the hoisting motor is fixed on the steel suspension beam. And the cable bracket is fixed below the steel suspension beam, and the hoisting motor drives the cable to move up and down in the vertical direction. 3. A kind of airbag wall-protecting drill bit-changing rectangular deep hole drilling rig as claimed in claim 1, characterized in that the stirring mechanism includes a main gear and a number of auxiliary gears meshed with the main gear, and the main gear It is driven to rotate by a stirring motor. The main gear is coaxially provided with a main stirring shaft extending into the mixing box. The main mixing shaft is provided with stirring blades. The auxiliary gear is coaxially provided with a main stirring shaft extending into the mixing box. The stirring auxiliary rotating shaft in the mixing box is provided with stirring blades. 4. A kind of airbag wall-protecting drill bit variable rectangular deep hole drilling rig as claimed in claim 1, characterized in that the slag suction system includes a slag suction main pipe and a multifunctional multi-functional pipe branched from the suction port of the slag suction main pipe. Slag suction branch pipes, the suction heads of the multifunctional slag suction branch pipes are connected to the multifunctional drill assembly, each suction head is provided with a multifunctional slag suction valve, and the multifunctional slag suction branch pipes are connected to the multifunctional slag suction branch pipes. The slag suction main pipes are connected through telescopic tubes. 5. A kind of airbag wall-protecting drill bit variable rectangular deep hole drilling rig according to claim 4, characterized in that the grouting system includes a grouting main pipe, a grouting pump and a multi-functional grouting branch pipe, and the grouting main pipe One end is connected to the grouting pump located on the ground, and the other end is connected to a plurality of multifunctional grouting branch pipes. The nozzles of the multifunctional grouting branch pipes are connected to the multifunctional drill assembly, and each nozzle Multifunctional grouting valves are provided everywhere, and the multifunctional grouting branch pipes and the grouting main pipe are connected through telescopic pipes. 6. A kind of airbag wall-protecting drill bit variable rectangular deep hole drilling rig according to claim 5, characterized in that the slag discharge system includes a slag discharge pipe and a slag discharge pump, and one end of the slag discharge pump is connected to the slag discharge pump. The other end of the pipe is connected to the slag discharge port on the mixing box. 7. An airbag wall-protecting drill bit-changing rectangular deep hole drilling rig according to claim 6, characterized in that the slag suction main pipe, the grouting main pipe and the slag discharge pipe are all arranged along the pipeline fixed frame. Cloth fixed. 8. A kind of airbag wall-protecting drill bit-changing rectangular deep hole drilling rig as claimed in claim 1, characterized in that the U-shaped fork plate is composed of a web, wing plates arranged on both sides of the web, and wing plates arranged on both sides of the web. The web is composed of a steel support in the middle, and the web includes a horizontal web and a vertical web; the cylindrical drill assembly includes two cylinders, a motor that drives the cylinder to rotate, and several cylindrical drills arranged at intervals on the surface of the cylinder. A hob assembly and several reamer assemblies arranged between adjacent hob assemblies. The hob assembly includes a hob base and a circle of hobs fixed on the hob base. The knife assembly includes a reamer base and a reamer that is tilted and fixed on the reamer base. The rotating shaft of the motor penetrates the cylinders on both sides and the end of the rotating shaft is correspondingly arranged on the U-shaped fork plate. In the shaft holes of the wing plates on both sides, the housing of the motor is welded and fixed on the steel support. 9. An airbag wall-protecting drill bit-changing rectangular deep hole drilling rig as claimed in claim 8, characterized in that the sliding reaction frame includes a reaction plate, a rail plate and a connecting plate, and the rail plate is installed on the T-shaped slide rails are fixed on both sides of the top of the reaction plate and the bottom of the rail plate. The connecting plates are respectively fixed on both sides of the web of the U-shaped fork plate. The top of the connecting plate A slide block is fixed and a T-shaped chute that matches the T-shaped slide rail is provided in the slide block. The cylinder end surface of the horizontal hydraulic cylinder is fixed on the reaction plate of the sliding reaction frame. The piston rod of the horizontal hydraulic cylinder is connected with the vertical web of the U-shaped fork plate.