Self-locking double-side rotary wall connecting trenching machine

Abstract

The present invention discloses a self-locking double-sided rotary drilling and grooving machine for ground-connected walls, comprising a lifting assembly with a cable and a drilling rig hoisted at the lower end of the cable. The drilling rig comprises a pipe fixing frame, a sludge handling mechanism, a horizontal rotary drilling assembly, and a vertical drilling device, which are sequentially connected from top to bottom. The sludge handling mechanism comprises a mixing box and a stirring mechanism located within the mixing box, the mixing box being provided with a sludge suction port, a sludge discharge port, and a slurry inlet. The horizontal rotary drilling assembly comprises two oppositely arranged horizontal rotary drilling devices, two rotary power assemblies for respectively driving the two horizontal rotary drilling devices, and a horizontal rotary drilling steel frame for mounting the two horizontal rotary drilling devices and the two rotary power assemblies. The advantages of the present invention are that both the horizontal cantilever plate structure and the vertical wall can be grooved simultaneously without the need for other mechanical assistance, thereby improving construction efficiency and saving construction and equipment costs.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of diaphragm wall trenching machine equipment, and particularly relates to a self-locking diaphragm wall double-side rotary drilling trenching machine. BACKGROUND

[0002] The underground continuous wall is a continuous reinforced concrete wall built by the method of pouring concrete into the guide pipe in sections after excavating a long and deep trench along the edge of the foundation engineering on the ground with the premise of mud protection, and placing the reinforcement cage after cleaning the trench and hoisting it. The underground continuous wall is mainly used as a water interception, seepage prevention, load-bearing, water retaining structure or as the foundation of a building.

[0003] The existing trenching technology mainly includes excavator type and milling wheel type. Patent No. CN 114687393A "Continuous wall construction equipment and construction method thereof" realizes the joint circulation of rotary drilling and grab bucket to drill the diaphragm wall trench. Patent No. CN 110258693A "Hydraulic grab bucket and underground continuous wall construction equipment" realizes the switching between the hydraulic grab bucket and the double-wheel mill through the movable buckle and the connecting piece, realizes one machine with multiple functions, and drills the underground continuous wall trench. In order to realize the construction of the diaphragm wall in low clearance, Patent No. CN 114086618A "Modularized slot milling device for underground diaphragm wall construction" modularizes the functional components of the diaphragm wall trenching equipment into a milling module, a slurry pumping module, a winding and hoisting module, and a accessory reel module, and connects them in sequence from front to back and lays them on the track. Patent No. CN 115070953A "Slotting equipment for underground continuous wall construction in building engineering" hoists the synchronous milling and hydraulic cutting equipment between the two bearing vehicles through the row frame to prevent the trench hole from being collapsed by the horizontal pressure caused by the bearing vehicle and improve the slotting quality and stability of the trench hole. Patent No. CN 216108696U "Truss chain milling earth stirring diaphragm wall machine" and Patent No. CN 115897551A "Continuous wall construction equipment and construction method based on TRD method drilling machine" both set the chain with evenly distributed milling stirring heads on the truss with active and passive driving mechanisms at both ends, and drive the chain with milling stirring heads to drill the diaphragm wall trench hole through the active driving mechanism.

[0004] Although the existing diaphragm wall trenching machine solves some problems of diaphragm wall trenching, it still has the following problems: (1) The diaphragm wall needs auxiliary equipment for deslagging, such as excavator type, which needs to be continuously lifted up and down in the trench to excavate and remove the soil, resulting in low construction efficiency; (2) It is unable to realize the excavation of the horizontal diaphragm wall / plate structure trench in the rock-soil body. SUMMARY

[0005] The self-locking ground continuous wall double-side rotary drilling groove forming machine comprises a hoisting assembly provided with a cable and a drilling machine hoisted by the lower end of the cable.

[0006] The self-locking ground continuous wall double-side rotary drilling groove forming machine comprises a hoisting assembly provided with a cable and a drilling machine hoisted by the lower end of the cable.

[0007] The self-locking ground continuous wall double-side rotary drilling groove forming machine comprises a hoisting assembly provided with a cable and a drilling machine hoisted by the lower end of the cable.

[0008] The sludge treatment mechanism comprises a stirring box and a stirring mechanism arranged in the stirring box.

[0009] The horizontal rotary drilling assembly comprises two horizontally arranged horizontal rotary drilling devices, two rotary power assemblies for driving the two horizontal rotary drilling devices to rotate and a horizontal rotary drilling steel frame for mounting the two horizontal rotary drilling devices and the two rotary power assemblies.

[0010] The stirring mechanism comprises a main gear and a plurality of auxiliary gears in mesh transmission with the main gear.

[0011] The vertical drilling device includes a vertical drill U-shaped fork plate and several cylindrical drill assemblies installed on the vertical drill U-shaped fork plate. The several cylindrical drill assemblies are all arranged horizontally and form a rectangular excavation surface. The vertical drill U-shaped fork plate is composed of a vertical drill web, vertical drill wing plates arranged on both sides of the vertical drill web, and a vertical drill steel support vertically welded to the vertical drill web. The cylindrical drill assembly includes two cylinders, several stirring blade assemblies evenly arranged on the surface of the cylinder and a motor that drives the cylinder to rotate. The stirring blade assembly is composed of a stirring blade base and a stirring blade obliquely fixed on the stirring blade base. The rotating shaft of the motor passes through the cylinders on both sides and is correspondingly arranged in the rotating shaft holes of the vertical drill wing plates.

[0012] The horizontal rotary drill steel frame is a box-shaped structure with one side open, which is composed of a horizontal rotary drill side vertical guard plate, a horizontal rotary drill upper side guard plate, a horizontal rotary drill lower side guard plate, a horizontal rotary drill left vertical guard plate, and a horizontal rotary drill right vertical guard plate. The horizontal rotary drill device and the rotary power assembly are both located in the box-shaped space of the horizontal rotary drill steel frame;

[0013] The rotary power assembly includes a rotary motor and a reaction frame connected to the rotary motor, both ends of the rotary motor shaft of the rotary motor respectively pass through the horizontal rotary drill U-shaped fork plate of the horizontal rotary drill device and are connected to the horizontal rotary drill steel frame, wherein the rotary motor shaft of the rotary motor is fixedly connected to the horizontal rotary drill U-shaped fork plate of the horizontal rotary drill device, and the rotary motor shaft of the rotary motor is rotatably connected to the horizontal rotary drill steel frame, and the reaction frame includes a reaction arm connected to the rotary motor and a reaction plate connected to the reaction arm and fixed on the horizontal rotary drill steel frame.

[0014] The slag suction port of the mixing box is connected to a slag suction main pipe, and a crushing device is provided between the slag suction main pipe and the slag suction port. The crushing device includes a fan for suction and a crushing knife for crushing mud slag. The suction port of the slag suction main pipe is bifurcated into a vertical slag suction branch pipe and a horizontal rotating slag suction branch pipe. The suction head of the vertical slag suction branch pipe is connected to the vertical drilling device, and the suction head of the horizontal rotating slag suction branch pipe is connected to the horizontal rotary drill assembly. A slag suction valve is provided at the suction head, and the pipe body of the horizontal rotating slag suction branch pipe adopts a telescopic tube.

[0015] The slurry inlet on the mixing box is connected to a grouting pipe, and a grouting pump is provided on the grouting pipe.

[0016] The slag discharge port of the mixing box is connected to a slag discharge pipe, and a slag discharge pump is provided in the slag discharge pipe to pump the slag upwards to the ground for collection and treatment.

[0017] The slag suction main pipe, the slag discharge pipe and the grouting pipe are arranged along the pipe fixing frame.

[0018] The lifting assembly comprises a vehicle-mounted platform, a steel stand column, a pull rod, a hinge shaft, a guide rail, a sliding block, a steel suspension beam, a hoist motor and a cable support, the steel stand column is vertically arranged on the vehicle-mounted platform, the upper end of the pull rod is hingedly connected with the upper end of the steel stand column, the lower end is hingedly connected with the hinge shaft fixed on the vehicle-mounted platform, the guide rail is vertically arranged and fixed along the steel stand column, the sliding block is slidably arranged on the guide rail, the steel suspension beam is fixed on the sliding block, the hoist motor is fixed on the steel suspension beam, and the cable support is fixed below the steel suspension beam, and the hoist motor drives the cable to move up and down in the vertical direction.

[0019] The advantages of the present application are:

[0020] (1) The soil body is drilled and excavated by the cable, the vertical cylindrical drill and the horizontally rotatable cylindrical drill with a stirring blade to form a ground wall groove with a horizontal cantilever plate structure;

[0021] (2) The horizontal cantilever plate structure and the vertical wall body can be formed in a groove at one time without the need of other mechanical assistance, so that the construction efficiency is improved and the construction and equipment costs are saved;

[0022] (3) The double-side horizontal rotary drilling device can improve the construction efficiency of drilling and excavating the horizontal cantilever plate groove in the soil body;

[0023] (4) The construction environment is improved and the mud cost is saved by jointly discharging the slag through vacuum slag suction and mud;

[0024] (5) The soil body is secondarily crushed by the crushing box, so that the groove hole can be better discharged and the discharge pipe is prevented from being blocked;

[0025] (6) The drilling and excavation and the discharge function are simultaneously provided, the drilling machine has high integration degree, the uninterrupted and synchronous drilling and excavation and discharge are realized, the construction process is reduced, the construction cost is saved, and the drilling construction efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a schematic view of the present application;

[0027] Figure 2 is a partial schematic view of the present application;

[0028] Figure 3 is a cross-sectional position schematic view of the present application;

[0029] Figure 4 is Figure 3 the A-A cross-sectional view in FIG. 4;

[0030] Figure 5 is a schematic view of the vertical drilling device of the present application;

[0031] Figure 6 is Figure 5 a cross-sectional view of B-B in FIG. 1;

[0032] Figure 7 is Figure 3 a cross-sectional view of C-C in FIG. 1;

[0033] Figure 8 is Figure 3 a cross-sectional view of D-D in FIG. 1;

[0034] Figure 9 is Figure 3 a cross-sectional view of E-E in FIG. 1;

[0035] Figure 10 is Figure 9 a cross-sectional view of F-F in FIG. 1;

[0036] Figure 11 is Figure 9 a cross-sectional view of G-G in FIG. 1;

[0037] Figure 12 is Figure 3 a cross-sectional view of H-H in FIG. 1;

[0038] Figure 13 is Figure 3 a cross-sectional view of I-I in FIG. 1;

[0039] Figure 14 is Figure 3 a cross-sectional view of J-J in FIG. 1;

[0040] Figure 15 is Figure 3 a cross-sectional view of K-K in FIG. 1;

[0041] Figure 16 is Figure 3 a cross-sectional view of L-L in FIG. 1;

[0042] Figure 17 is a schematic diagram of the construction process of the self-locking reverse pressure diaphragm wall trench of the application (one);

[0043] Figure 18 is Figure 17 a cross-sectional view of M-M in FIG. 1;

[0044] Figure 19 is a schematic diagram of the construction process of the self-locking reverse pressure diaphragm wall trench of the application (two);

[0045] Figure 20 is a schematic diagram of the construction process of the self-locking positive pressure diaphragm wall trench of the application;

[0046] Figure 21 is Figure 20 a cross-sectional view of N-N in FIG. 1;

[0047] As Figures 1-21 shown, the figures are marked as follows:

[0048] 1. Vertical drilling device, 2. Horizontal rotary drilling assembly, 3. Agitation device, 4. Crushing device, 5. Slag suction system, 6. Grouting system, 7. Slag discharge system, 8. Pipe fixing frame, 9. Hoisting assembly;

[0049] 11. Cylindrical drilling assembly, 12. Vertical drilling U-shaped fork plate, 111. Cylinder, 112. Stirring blade assembly, 113. Motor, 114. Motor shaft, 121. Vertical drilling wing plate, 122. Vertical drilling web plate, 123. Vertical drilling steel support, 124. Shaft hole, 125. Vertical suction pipe through hole, 1121. Stirring blade base, 1122. Stirring blade;

[0050] 21. Horizontal rotary drilling device, 22. Rotary power assembly, 23. Horizontal rotary drilling steel frame;

[0051] 211. Horizontal rotary drilling U-shaped fork plate, 2111. Horizontal rotary drilling wing plate, 2112. Horizontal rotary drilling web plate, 2113. Horizontal rotary drilling side plate, 2114. Horizontal rotary drilling steel support, 2115. Horizontal rotary drilling suction pipe through hole, 2116. Rotary motor shaft fixing hole;

[0052] 221. Rotary motor, 222. Rotary motor shaft, 223. Fastener, 224. Counterforce frame, 2241. Counterforce plate, 2242. Counterforce arm;

[0053] 231. Horizontal rotary drilling side plate, 232. Horizontal rotary drilling upper side plate, 233. Horizontal rotary drilling lower side plate, 234. Horizontal rotary drilling left side plate, 235. Horizontal rotary drilling right side plate, 236. Rotary motor positioning hole, 237. Horizontal rotary suction main pipe through hole;

[0054] 31. Agitation box, 32. Double-layer large blade, 33. Agitation main shaft, 34. Double-layer small blade, 35. Agitation auxiliary shaft, 36. Single-layer small blade, 37. Main gear, 38. Main gear isolation pad, 39. Auxiliary gear, 310. Auxiliary gear isolation pad, 311. Steel cover plate, 312. Agitation motor;

[0055] 41. Crushing box, 42. Middle partition plate, 43. Connection pipe, 44. Frame, 45. Fan motor, 46. Fan blade, 47. Crushing blade, 48. Filter screen;

[0056] 51. Suction main pipe, 52. Vertical suction branch pipe, 53. Horizontal rotary suction branch pipe, 54. Telescopic pipe, 55. Suction head, 56. Vertical suction valve, 57. Horizontal rotary suction valve;

[0057] 61. Grouting pipe, 62. Grouting pump;

[0058] 71. Slag discharge pipe, 72. Slag discharge pump;

[0059] 81. Top steel plate, 82. Middle steel plate, 83. Bottom steel plate, 84. Side plate, 85. Square through hole, 86. Slag discharge pipe fixing hole, 87. Grouting pipe fixing hole;

[0060] 91. Winch 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 platform;

[0061] a. Soil stratum, b. Drilling rig, c. Ground tether wall trench, c1. Vertical ground tether wall trench, c2. Free section ground tether wall trench, c3. Embedded section ground tether wall trench, c4. Horizontal cantilever plate trench. DETAILED DESCRIPTION

[0062] The features of the present invention and other related features are further described in detail below through embodiments in conjunction with the accompanying drawings to facilitate understanding by those skilled in the art:

[0063] Example: Figures 1-16 As shown, this embodiment specifically relates to a self-locking ground-connected wall bilateral rotary drilling and grooving machine, which is used for drilling vertical ground-connected wall grooves and horizontal cantilever plate grooves of the self-locking ground-connected wall. The grooving machine includes a lifting assembly 9, a pipe fixing frame 8, a mud and slag processing mechanism, a horizontal rotary drill assembly 2 and a vertical drilling device 1. The lifting assembly 9 has a cable 93 for lifting, and the lower end of the cable 93 is used for lifting the drilling rig. The drilling rig includes a pipe fixing frame 8, a mud and slag processing mechanism, a horizontal rotary drill assembly 2 and a vertical drilling device 1 arranged in sequence from top to bottom; wherein, the mud and slag processing mechanism includes a stirring device 3, a crushing device 4, a slag suction system 5, a slag discharge system 7 and a grouting system 6.

[0064] like Figure 1 and Figure 2As shown, the hoisting assembly 9 includes a vehicle platform 911, a steel column 97, a pull rod 910, a hinge shaft 99, a guide rail 98, a sliding block 96, a steel suspension beam 95, a cable support 94, a winch motor 91, a fixed shaft 92, and a cable 93. The vehicle platform 911 has trackable caterpillar wheels and is located on the ground. The steel column 97 is vertically arranged at the front end of the vehicle platform 911. The pull rod 910 is diagonally braced to the steel column 97. Specifically, the upper end of the pull rod 910 is hingedly connected to the upper end of the steel column 97, and the lower end is hingedly connected to the hinge shaft 99 of the vehicle platform 911. The guide rail 98 is fixedly arranged along the steel column 97 to form a vertical track. The sliding block 96 is slidably arranged on the guide rail 98 and can slide in the vertical direction under the drive of a power mechanism. The steel suspension beam 95 is fixed to the sliding block 96. The cable support 94 is fixed to the bottom surface of the steel suspension beam 95. The winch motor 91 is fixed to the steel suspension beam 95 through the fixed shaft 92. The winch motor 91 is used to drive the cable 93 and the drilling machine at the lower end of the cable 93 to move up and down. It should be noted that, due to the large weight of the drilling machine, the drilling machine can move downward under its own weight without the need for the downward pressure of the drill rod as required in the prior art. In addition, the cable 93 has sufficient length to meet the drilling requirements of the diaphragm wall slot.

[0065] As shown in the drawings, Figures 1-7 The vertical drilling device 1 is used for drilling and excavating a vertical diaphragm wall slot and mainly includes a plurality of cylindrical drill assemblies 11 and a vertical drilling U-shaped fork plate 12 serving as a mounting frame. The vertical drilling U-shaped fork plate 12 mainly includes a vertical drilling web plate 122 and vertical drilling wing plates 121 located on both sides of the vertical drilling web plate 122. Based on the number of cylindrical drill assemblies 11, a vertical drilling steel support 123 is vertically welded at the middle position of the vertical drilling web plate 122. The cylindrical drill assembly 11 is composed of two cylindrical drills, one motor 113, and one motor shaft 114. In this embodiment, the number of cylindrical drills is four, and they are arranged in a matrix to form a rectangular cutting surface. During downward cutting, a rectangular hole is formed. The matrix distribution here refers to that the cylindrical drills are arranged on both sides of the vertical drilling steel support 123. The cylindrical drill includes a cylinder 111 and a stirrer assembly 112 uniformly distributed on the surface of the cylinder 111. The centrally arranged vertical drilling steel support 123 is welded or bolted to the motor housing. The motor shaft 114 of the motor 113 drives the two side cylinders 111 to rotate. The end of the motor shaft 114 is supported in the shaft hole 124 of the two side wing plates 121. The stirrer assembly 112 includes a stirrer base 1121 and a stirrer 1122. The stirrer 1122 is obliquely installed under the fixation of the stirrer base 1121 to facilitate the excavation of the soil body. In addition, a plurality of vertical slurry suction branch pipe through holes 125 are formed in the vertical drilling web plate 122 to facilitate the extension of the suction head 55 of the vertical slurry suction branch pipe 52 in the slurry suction system 5 into the vertical drilling U-shaped fork plate 12 to suck the excavated slurry.

[0066] AsFigures 1-3 As shown in Figs. 8-11, the horizontal rotary drilling assembly 2 is used for horizontal cantilevered slab trench drilling, which mainly comprises two oppositely arranged horizontal rotary drilling devices 21, two rotary power assemblies 22 respectively used for driving the two horizontal rotary drilling devices 21 to rotate, and a horizontal rotary drilling steel frame 23 used for mounting the two horizontal rotary drilling devices 21 and the two rotary power assemblies 22. The horizontal rotary drilling device 21 comprises a horizontal rotary drilling U-shaped fork plate 211 and a plurality of horizontal rotary drills mounted on the horizontal rotary drilling U-shaped fork plate 211. The horizontal rotary drills are vertically arranged and arranged in a matrix. Except for the different arrangement manner (the horizontal rotary drills are vertically arranged, and the cylindrical drill assembly 11 is horizontally arranged), the structure and function of the horizontal rotary drills are the same as those of the cylindrical drill assembly 11, and thus will not be described here. The horizontal rotary drilling U-shaped fork plate 211 is composed of a horizontal rotary drilling web plate 2112, horizontal rotary drilling wing plates 2111 arranged at both ends (upper and lower) of the horizontal rotary drilling web plate 2112, a horizontal rotary drilling side stand plate 2113 arranged at one side of the horizontal rotary drilling web plate 2112, and horizontal rotary drilling steel supports 2114 (having the same function as the vertical drilling steel supports 123) vertically welded on the horizontal rotary drilling web plate 2112. The horizontal rotary drilling side stand plate 2113 is used for separating the horizontal rotary drills and the rotary power assemblies 22. In addition, a plurality of horizontal rotary drilling sludge suction branch pipe through holes 2115 are arranged on the horizontal rotary drilling web plate 2112, so that the suction heads 55 of the horizontal rotary sludge suction branch pipes 53 in the sludge suction system 5 extend into the horizontal rotary drilling U-shaped fork plate 211 to suck the excavated sludge.

[0067] The horizontal rotary drilling steel frame 23 is a box-shaped structure with one side opening, which is composed of a horizontal rotary drilling side stand plate 231, a horizontal rotary drilling upper side plate 232, a horizontal rotary drilling lower side plate 233, a horizontal rotary drilling left side stand plate 234, and a horizontal rotary drilling right side stand plate 235. The horizontal rotary drilling device 21 and the rotary power assembly 22 are located in the box-shaped space of the horizontal rotary drilling steel frame 23. In addition, a horizontal rotary sludge suction main pipe through hole 237 is arranged on the horizontal rotary drilling upper side plate 232, so as to fix the sludge suction main pipe 51 of the sludge suction system 5.

[0068] The rotating power assembly 22 comprises a rotating motor 221 and a counterforce frame 224 connected with the rotating motor 221. The rotating motor shaft 222 of the rotating motor 221 penetrates the rotating motor shaft fixing hole 2116 of the upper horizontal rotating drill wing plate 2111 and enters the rotating motor positioning hole 236 of the upper horizontal rotating drill side plate 232. The lower end of the rotating motor shaft 222 of the rotating motor 221 penetrates the rotating motor shaft fixing hole 2116 of the lower horizontal rotating drill wing plate 2111 and enters the rotating motor positioning hole 236 of the lower horizontal rotating drill side plate 233. The rotating motor shaft 222 of the rotating motor 221 is fixedly connected to the horizontal rotating drill wing plate 2111 of the horizontal rotating drill U-shaped fork plate 211 by a fastener 223. The rotating motor shaft 222 of the rotating motor 221 is rotatably connected to the upper horizontal rotating drill side plate 232 (the lower horizontal rotating drill side plate 233) of the horizontal rotating drill steel frame 23. The counterforce frame 224 comprises a counterforce arm 2242 connected with the rotating motor 221 and a counterforce plate 2241 connected with the counterforce arm 2242 and fixed on the lower horizontal rotating drill side plate 233. In this embodiment, the rotating motor 221 drives the rotating motor shaft 222 to rotate, so as to drive the corresponding horizontal rotating drill device 21 to rotate by 90 degrees on the horizontal plane, thereby forming a 1 / 4 circular horizontal cantilever plate groove. Two horizontal rotating drill devices 21 can drill and excavate the soil to form a semicircular horizontal cantilever plate groove.

[0069] As shown in Figures 1-16 The sludge treatment mechanism comprises a stirring device 3, a crushing device 4, a sludge suction system 5, a sludge discharge system 7 and a grouting system 6.

[0070] The stirring device 3 comprises a stirring box 31 and a stirring mechanism. The stirring box 31 is fixedly installed on the upper surface of the upper horizontal rotating drill side plate 232. The stirring mechanism comprises a main gear 37 and a plurality of auxiliary gears 39 in transmission with the main gear 37. The main gear 37 is driven to rotate by a stirring motor 312. The rotating main gear 37 in turn drives each auxiliary gear 39 to rotate. The main gear 37 is coaxially provided with a stirring main rotating shaft 33 extending into the stirring box 31. The stirring main rotating shaft 33 is provided with stirring blades. The stirring blades herein adopt double-layer large blades 32. Each auxiliary gear 39 is coaxially provided with a stirring auxiliary rotating shaft 35 extending into the stirring box 31. The stirring auxiliary rotating shaft 35 is also provided with stirring blades. The stirring blades on part of the stirring auxiliary rotating shafts 35 adopt double-layer small blades 34. The stirring blades on another part of the stirring auxiliary rotating shafts 35 adopt single-layer small blades 36. The mud and slurry in the stirring box 31 are stirred to obtain uniformly mixed slurry, which is beneficial to discharge. In order to avoid the slurry in the stirring box 31 from penetrating into the gear box where the main gear 37 and the auxiliary gears 39 are located during the stirring process, a main gear isolation pad 38 is arranged at the joint of the stirring main rotating shaft 33 and the stirring box 31. An auxiliary gear isolation pad 310 is arranged at the joint of the stirring auxiliary rotating shaft 35 and the stirring box 31. Figure 2As shown in the figure, the top of the gear box where the main gear 37 and the auxiliary gear 39 are located is a steel cover plate 311, which is used to connect with the pipe fixing frame 8. The stirring tank 31 is provided with a sludge suction port, a sludge discharge port and a slurry inlet port.

[0071] The sludge suction port of the stirring tank 31 is connected with a sludge suction system 5, which mainly includes a sludge suction main pipe 51, a vertical sludge suction branch pipe 52, a horizontal rotary sludge suction branch pipe 53 and a crushing device 4. One end of the sludge suction main pipe 51 is connected with the sludge suction port of the stirring tank 31 through the crushing device 4, and the other end (i.e. the suction end) of the sludge suction main pipe 51 is bifurcated into the vertical sludge suction branch pipe 52 and the horizontal rotary sludge suction branch pipe 53, as shown in the figure. Figure 2 As shown in the figure, the vertical sludge suction branch pipe 52 extends into the vertical drilling device 1, and the suction head 55 of the vertical sludge suction branch pipe 52 is close to the cylindrical drill assembly 11, so that it can suck the soil sludge cut and stirred, and a vertical sludge suction valve 56 is arranged at the suction head 55 for controlling the opening and closing of the pipeline. The horizontal rotary sludge suction branch pipe 53 extends into the horizontal rotary drill assembly 2, and the suction head 55 of the horizontal rotary sludge suction branch pipe 53 is close to the horizontal rotary drill device 21, so that it can suck the soil sludge cut and stirred, and a horizontal rotary sludge suction valve 57 is arranged at the suction head 55 for controlling the opening and closing of the pipeline. In order to adapt to the rotation of the horizontal rotary drill device 21, part of the pipeline of the horizontal rotary sludge suction branch pipe 53 is in the form of an extension pipe 54. The sucked sludge enters the stirring tank 31 after being crushed into small particles by the crushing device 4. The crushing device 4 mainly includes a crushing tank 41, a partition plate 42, a connecting pipe 43, a rack 44, a fan motor 45, fan blades 46, crushing knives 47 and a filter screen 48. The partition plate 42 is inclinedly arranged in the crushing tank 41 to form a slope for the flow of sludge. The fan motor 45 is installed on the top plate in the crushing tank 41 through the rack 44. The fan blades 46 are arranged on the rotating shaft of the fan motor 45. The high-speed rotating fan motor 45 and fan blades 46 can form a negative pressure suction in the sludge suction main pipe 51. The crushing knives 47 are installed at the installation position of the fan motor 45, so that the sucked sludge must pass through the crushing knives 47 before entering the stirring tank 31 through the connecting pipe 43. The filter screen 48 is arranged at the end surface of the fan motor 45 to filter large particle sludge, so as to avoid the sludge flowing into the stirring tank 31 from the fan motor 45.

[0072] The slurry inlet port of the stirring tank 31 is connected with the grouting system 6 from the ground, and the grouting system 6 mainly includes a grouting pipe 61 and a grouting pump 62. The grouting pipe 61 pumps the slurry with suitable concentration into the stirring tank 31 through the grouting pump 62, so as to mix with the sludge sucked up, so as to become a liquid, which is convenient for sucking out.

[0073] The slag discharge port of the stirring box 31 is connected to the slag discharge system 7 on the ground, which includes a slag discharge pipe 71 and a slag discharge pump 72. The lower end of the slag discharge pipe 71 is connected to the slag discharge port of the stirring box 31 and extends downward to a certain depth to facilitate the discharge of more slurry. The uniformly stirred slurry in the stirring box 31 is discharged to the ground for collection and treatment by the slag discharge pump 72.

[0074] As shown in Figures 1-3 As shown in Figs. 14-16, the pipe fixing frame 8 has a box-shaped structure, including a top steel plate 81, a middle steel plate 82, a bottom steel plate 83, and a plurality of side plates 84 connecting the three. In addition, a square through hole 85 is formed in the bottom steel plate 83 for the stirring motor 312 to pass through. In addition, a slag discharge pipe fixing hole 86 for the slag discharge pipe 71 to pass through and a grouting pipe fixing hole 87 for the grouting pipe 61 to pass through are formed in the top steel plate 81, the middle steel plate 82, and the bottom steel plate 83. In order to avoid pipe shaking during drilling, the pipe fixing frame 8 can provide fixation for each passing pipe. It should be noted that four lifting points are provided on the top steel plate 81 for the cable 93 to connect and ensure stable hoisting of the pipe fixing frame 8.

[0075] As shown in Figure 17 When the trenching machine is used to excavate a self-locking counter-pressure diaphragm wall trench, the self-locking counter-pressure diaphragm wall trench here includes four vertical diaphragm wall trenches c1 (for constructing vertical diaphragm walls) arranged outside the deep foundation pit, and a horizontal cantilever slab trench c4 (for constructing horizontal cantilever slabs) arranged outside the vertical diaphragm wall trenches c1 and communicating with the vertical diaphragm wall trenches c1. The four vertical diaphragm wall trenches c1 form a rectangular structure, and each vertical diaphragm wall trench c1 extends away from the deep foundation pit by a certain distance. The construction method of the self-locking counter-pressure diaphragm wall trench is as follows:

[0076] (S1) In the soil layer a, the lifting assembly 9 hoists the drilling machine b using the cable 93, and the drilling machine b generates downward pressure under its own weight to drive drilling. The vertical drilling device 1 on the drilling machine b is used to drill the vertical diaphragm wall trench c1 to form a free section diaphragm wall trench c2, until the designed depth of the horizontal cantilever slab. In this process, the suction head 55 of the vertical suction pipe 52 continuously sucks slurry, while the suction head 55 of the horizontal rotary suction pipe 53 is closed.

[0077] (S2) When the designed elevation of the free section wall trench c2 is reached, stop the drilling work of the vertical drilling device 1; start the horizontal rotary drilling assembly 2, and the two rotary power assemblies 22 respectively drive the corresponding horizontal rotary drilling devices 21 to rotate 90 degrees in the horizontal plane outside the horizontal rotary drilling steel frame 23 to drill the soil, forming a semicircular horizontal cantilever slab trench c4; in this process, the suction head 55 of the horizontal rotary suction branch pipe 53 continuously sucks the slurry, while the suction head 55 of the vertical suction branch pipe 52 is closed.

[0078] (S3) After drilling the semicircular horizontal cantilever slab trench c4, the rotary power assembly 22 drives the horizontal rotary drilling device 21 to rotate back 90 degrees to retreat into the horizontal rotary drilling steel frame 23; then the vertical drilling device 1 is used to continue drilling to the designed depth to form the embedded section wall trench c3; in this process, the suction head 55 of the vertical suction branch pipe 52 continuously sucks the slurry, while the suction head 55 of the horizontal rotary suction branch pipe 53 is closed.

[0079] (S4) Repeat steps S1-S3 until the drilling of a vertical wall trench c1 and its corresponding semicircular horizontal cantilever slab trench c4 is completed. Any horizontal rotary drilling device 21 in the horizontal rotary drilling assembly 2 is used to horizontally and transversely drill the semicircular horizontal cantilever slab trench c4, that is, one of the horizontal rotary drilling devices 21 is rotated 90 degrees in the horizontal plane outside the horizontal rotary drilling steel frame 23, and then the horizontal rotary drilling device 21 is moved along the length direction of the horizontal cantilever slab to drill the semicircular horizontal cantilever slab trench c4, so as to form a rectangular horizontal cantilever slab trench c4.

[0080] (S5) According to step S4, the drilling of the remaining three vertical wall trenches c1 and their corresponding rectangular horizontal cantilever slab trenches c4 is completed, thereby realizing the drilling of the wall trench c. In addition, as shown in Figure 18 , the top surface of the rectangular horizontal cantilever slab trench c4 is flush with the bottom surface of the deep foundation pit.

[0081] As shown in Figure 19 , when the trenching machine is used to excavate another self-locking counterpressure wall trench, the self-locking counterpressure wall trench here includes four vertical wall trenches c1 arranged outside the four sides of the deep foundation pit and horizontal cantilever slab trenches c4 arranged outside the vertical wall trenches c1 and communicating with the vertical wall trenches c1, wherein the four vertical wall trenches c1 form a rectangular structure. The construction method of the self-locking counterpressure wall trench is the same as that of the self-locking counterpressure wall trench shown in Figure 17 , and the top surface of the rectangular horizontal cantilever slab trench c4 is flush with the bottom surface of the deep foundation pit, so it is not repeated here.

[0082] As shown in Figure 20As shown, when the trenching machine is used to excavate a self-locking positive pressure ground-connecting wall trench, the self-locking positive pressure ground-connecting wall trench here includes four vertical ground-connecting wall trenches c1 arranged on the outside of the deep foundation pit and a horizontal cantilever plate trench c4 arranged on the inside of the vertical ground-connecting wall trench c1 and connected to the vertical ground-connecting wall trench c1, wherein a rectangular structure is formed between the four vertical ground-connecting wall trenches c1. The construction method of the self-locking positive pressure ground-connecting wall trench is similar to Figure 17 The construction method of the self-locking counter-pressure ground connection wall groove is the same as shown, and Figure 21 As shown, the top surface of the rectangular horizontal cantilever plate groove c4 is flush with the bottom surface of the deep foundation pit, so it will not be described here.

[0083] The beneficial effects of this embodiment are:

[0084] (1) Drilling a ground-connected wall trench with a horizontal cantilever plate structure in the soil using cables, a vertical cylindrical drill, and a horizontally rotatable cylindrical drill with a stirring blade;

[0085] (2) Both the horizontal cantilever plate structure and the vertical wall can be grooved in one go without the need for other mechanical assistance, thereby improving construction efficiency and saving construction and equipment costs;

[0086] (3) The double-sided horizontal rotary drilling device can improve the construction efficiency of drilling horizontal cantilever plate grooves in the soil;

[0087] (4) Improve the construction environment and save mud costs through vacuum suction and mud removal;

[0088] (5) The soil is crushed twice by the crushing box, which can better discharge the slot and prevent the slag discharge pipe from being blocked;

[0089] (6) It has both drilling and slag removal functions, and the drilling rig has a high degree of integration, which enables uninterrupted and simultaneous drilling and slag removal, reduces construction procedures, saves construction costs, and improves drilling construction efficiency.

[0090] Although the above embodiments have described in detail the concepts and embodiments of the present invention with reference to the accompanying drawings, ordinary technicians in this field can recognize that various improvements and modifications can still be made to the present invention without departing from the scope of the claims, so they are not described in detail here.

Claims

1. A self-locking ground wall double-sided rotary drilling and digging machine, characterized in that The troughing machine includes a lifting assembly with a cable and a drilling rig hoisted at the lower end of the cable. The drilling rig includes a pipe fixing frame, a mud and slag processing mechanism, a horizontal rotary drill assembly, and a vertical drilling device connected in sequence from top to bottom. The lower end of the cable is connected to the pipe fixing frame; wherein: The sludge processing mechanism includes a mixing box and a mixing mechanism located in the mixing box, and the mixing box is provided with a sludge suction port, a sludge discharge port and a slurry inlet; The horizontal rotary drill assembly includes two horizontal rotary drill devices arranged opposite to each other, two rotary power assemblies for driving the two horizontal rotary drill devices to rotate respectively, and a horizontal rotary drill steel frame for mounting the two horizontal rotary drill devices and the two rotary power assemblies; the horizontal rotary drill device includes a horizontal rotary drill U-shaped fork plate and a plurality of vertically arranged horizontal rotary drills mounted on the horizontal rotary drill U-shaped fork plate, the horizontal rotary drill U-shaped fork plate is composed of a horizontal rotary drill web, horizontal rotary drill wing plates arranged at both ends of the horizontal rotary drill web, a horizontal rotary drill side vertical plate arranged on one side of the horizontal rotary drill web, and a horizontal rotary drill steel support vertically welded to the horizontal rotary drill web; The horizontal rotary drill steel frame is a box-shaped structure with one side open, which is composed of a horizontal rotary drill side vertical guard plate, a horizontal rotary drill upper side guard plate, a horizontal rotary drill lower side guard plate, a horizontal rotary drill left vertical guard plate, and a horizontal rotary drill right vertical guard plate. The horizontal rotary drill device and the rotary power assembly are both located in the box-shaped space of the horizontal rotary drill steel frame; The rotary power assembly includes a rotary motor and a reaction frame connected to the rotary motor, both ends of the rotary motor shaft of the rotary motor respectively pass through the horizontal rotary drill U-shaped fork plate of the horizontal rotary drill device and are connected to the horizontal rotary drill steel frame, wherein the rotary motor shaft of the rotary motor is fixedly connected to the horizontal rotary drill U-shaped fork plate of the horizontal rotary drill device, and the rotary motor shaft of the rotary motor is rotatably connected to the horizontal rotary drill steel frame, and the reaction frame includes a reaction arm connected to the rotary motor and a reaction plate connected to the reaction arm and fixed on the horizontal rotary drill steel frame.

2. The self-locking ground wall double-sided rotary drilling and grooving machine according to claim 1 is characterized in that The stirring mechanism includes a main gear and several auxiliary gears meshing with the main gear for transmission. The main gear is driven to rotate by a stirring motor. A main stirring shaft extending into the stirring box is coaxially arranged on the main gear, and stirring blades are arranged on the main stirring shaft; an auxiliary stirring shaft extending into the stirring box is coaxially arranged on the auxiliary gear, and stirring blades are arranged on the auxiliary stirring shaft.

3. The self-locking ground wall double-sided rotary drilling and grooving machine according to claim 1 is characterized in that The vertical drilling device includes a vertical drill U-shaped fork plate and several cylindrical drill assemblies installed on the vertical drill U-shaped fork plate. The several cylindrical drill assemblies are all arranged horizontally and form a rectangular excavation surface. The vertical drill U-shaped fork plate is composed of a vertical drill web, vertical drill wing plates arranged on both sides of the vertical drill web, and a vertical drill steel support vertically welded to the vertical drill web. The cylindrical drill assembly includes two cylinders, several stirring blade assemblies evenly arranged on the surface of the cylinder and a motor that drives the cylinder to rotate. The stirring blade assembly is composed of a stirring blade base and a stirring blade obliquely fixed on the stirring blade base. The rotating shaft of the motor passes through the cylinders on both sides and is correspondingly arranged in the rotating shaft holes of the vertical drill wing plates.

4. The self-locking ground wall double-sided rotary drilling and grooving machine according to claim 1 is characterized in that The slag suction port of the mixing box is connected to a slag suction main pipe, and a crushing device is provided between the slag suction main pipe and the slag suction port. The crushing device includes a fan for suction and a crushing knife for crushing mud slag. The suction port of the slag suction main pipe is bifurcated into a vertical slag suction branch pipe and a horizontal rotating slag suction branch pipe. The suction head of the vertical slag suction branch pipe is connected to the vertical drilling device, and the suction head of the horizontal rotating slag suction branch pipe is connected to the horizontal rotary drill assembly. A slag suction valve is provided at the suction head, and the pipe body of the horizontal rotating slag suction branch pipe adopts a telescopic tube.

5. The self-locking ground wall double-sided rotary drilling and grooving machine according to claim 4 is characterized in that The slurry inlet on the mixing box is connected to a grouting pipe, and a grouting pump is provided on the grouting pipe.

6. The self-locking ground wall double-sided rotary drilling and grooving machine according to claim 5 is characterized in that The slag discharge port of the mixing box is connected to a slag discharge pipe, and a slag discharge pump is provided in the slag discharge pipe to pump the mud slag upward to the ground for collection and treatment.

7. The self-locking ground wall double-sided rotary drilling and grooving machine according to claim 6 is characterized in that The slag suction main pipe, the slag discharge pipe and the grouting pipe are arranged along the pipeline fixing frame.

8. The self-locking ground wall double-sided rotary drilling and grooving machine according to claim 1 is characterized in that The lifting assembly includes a vehicle-mounted platform, a steel column, a pull rod, a hinge shaft, a guide rail, a slider, a steel suspension beam, a winch motor and a cable bracket. The steel column is vertically arranged on the vehicle-mounted platform, the upper end of the pull rod is hinged to the upper end of the steel column, and the lower end is hinged to the hinge shaft fixed on the vehicle-mounted platform. The guide rail is vertically arranged 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 winch motor is fixed on the steel suspension beam, and the cable bracket is fixed under the steel suspension beam. The winch motor drives the cable to move up and down in the vertical direction.

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