CN117364866B - Soil excavation equipment for narrow region in geotechnical engineering reverse construction - Google Patents
Soil excavation equipment for narrow region in geotechnical engineering reverse construction Download PDFInfo
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- CN117364866B CN117364866B CN202311631564.0A CN202311631564A CN117364866B CN 117364866 B CN117364866 B CN 117364866B CN 202311631564 A CN202311631564 A CN 202311631564A CN 117364866 B CN117364866 B CN 117364866B
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- hydraulic cylinder
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- 239000002689 soil Substances 0.000 title claims abstract description 97
- 238000010276 construction Methods 0.000 title claims abstract description 23
- 238000009412 basement excavation Methods 0.000 title claims abstract description 17
- 239000011435 rock Substances 0.000 claims abstract description 51
- 239000000126 substance Substances 0.000 claims abstract description 19
- 230000006698 induction Effects 0.000 claims abstract description 17
- 238000007599 discharging Methods 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 238000005192 partition Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 11
- 230000001681 protective effect Effects 0.000 abstract 1
- 238000005457 optimization Methods 0.000 description 8
- 239000004575 stone Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F7/00—Equipment for conveying or separating excavated material
- E02F7/02—Conveying equipment mounted on a dredger
Abstract
The invention relates to the technical field of foundation pit construction and discloses a small area soil body excavation device for geotechnical engineering reverse construction, which comprises a movable vehicle body, a multidirectional adjusting mechanism and a substance transferring comprehensive mechanism, wherein the multidirectional adjusting mechanism is used for adjusting spatial position data of the substance transferring comprehensive mechanism by taking the movable vehicle body as a base point; the substance transferring integrated mechanism comprises a soil transferring assembly, an elastic induction type cutting-in assembly and a rock positioning assembly; the soil transportation assembly can continuously output soil after being inserted into the soil, has an advancing buffer stop time when encountering obstacles in the process of being inserted into the soil, can prevent the drill bit from damaging a foundation pit supporting structure, and can continuously advance and stably connect the rock positioning assembly with the rock when the obstacles are not foundation pit supporting, so that the obstacles can be conveniently taken out and stably piled at the edge of the foundation pit to form the foundation pit protective wall.
Description
Technical Field
The invention relates to the technical field of foundation pit construction, in particular to a soil excavation device for a narrow region in geotechnical engineering reverse construction.
Background
The reverse construction method is to use the underground structure of the main engineering as a foundation pit supporting structure and adopt a top-down design construction method of the underground structure when excavation is carried out, namely, when the excavation reaches a certain design elevation, the main structure is firstly started to be excavated, and then the excavation is continued downwards until the excavation reaches the design elevation.
The common foundation pit supporting structures include underground continuous walls, row piles, steel sheet piles, concrete retaining walls, soil nailing walls, layered internal support reverse construction technologies, row piles, retaining walls reverse construction technologies, small-diameter manual hole-forming pile supporting technologies and the like, and in the process of excavating a foundation pit in a narrow underground area, excavating equipment such as an excavator is adopted, but the equipment is difficult to operate in the narrow underground area, the transfer of soil and large-scale stones is complicated, structural members such as foundation pit supporting structures buried in the soil are easy to damage, when the adopted foundation pit supporting is different, the reinforced concrete walls are not arranged at certain edges of the foundation pit, the situation that the soil at the edges collapses into the foundation pit can often occur, the conventional excavating equipment cannot conveniently transfer the excavated large-scale stones to the edges of the foundation pit and orderly stack the excavated stones, the excavated stones cannot be utilized to carry out soil collapse protection on the edges of the foundation pit, the resource utilization rate is low, and the construction time is long.
Disclosure of Invention
The invention aims to solve the problems and provides a small-area soil excavation device for geotechnical engineering reverse construction.
The invention provides a soil excavation device for a narrow region in geotechnical engineering reverse construction, which comprises a movable vehicle body, a multi-directional adjusting mechanism connected to the movable vehicle body and a substance transferring comprehensive mechanism connected to the multi-directional adjusting mechanism, wherein the multi-directional adjusting mechanism is used for adjusting spatial position data of the substance transferring comprehensive mechanism by taking the movable vehicle body as a base point;
the substance transferring comprehensive mechanism comprises a soil transferring assembly, an elastic induction type cutting-in assembly connected to the input end of the soil transferring assembly, and a rock positioning assembly arranged on the soil transferring assembly;
the soil transferring assembly comprises a conveying frame and a spiral feeding assembly arranged in the conveying frame, wherein the input end of the conveying frame is communicated with the output end of the elastic induction type cutting assembly, one end of the spiral feeding assembly extends to the output end of the elastic induction type cutting assembly, and the spiral feeding assembly is used for conveying soil entering the elastic induction type cutting assembly from the input end of the conveying frame to the output end of the conveying frame;
the elastic induction type cutting-in assembly comprises an elastic telescopic assembly connected to the input end of the conveying frame and a cutting-in pipe fitting at one end of the elastic telescopic assembly, and the elastic telescopic assembly is used for detecting a resistance value when the cutting-in pipe fitting cuts in soil;
the rock positioning assembly comprises an annular power supply assembly connected to the inner wall of the conveying frame and a plurality of rock limiting assemblies connected to one end of the spiral feeding assembly, wherein the rock limiting assemblies are electrically connected with the annular power supply assembly and are used for limiting and fixing rock blocks in soil.
As a further optimization scheme of the invention, the multidirectional adjusting mechanism comprises a rotating platform movably connected to the upper end of a moving vehicle body, a first motor fixedly connected to the inner wall of the moving vehicle body, a translation track fixedly connected to the rotating platform, a first hydraulic cylinder fixedly connected to the translation track, a moving hinge frame slidably connected to the translation track, a connecting rod frame and a second hydraulic cylinder hinged to the moving hinge frame, a rotating hinge frame and a third hydraulic cylinder hinged to one end of the connecting rod frame, and a mounting frame fixedly connected to the rotating hinge frame, wherein the first hydraulic cylinder is arranged in parallel with the translation track, the output end of the first hydraulic cylinder is fixedly connected with the moving hinge frame, the output end of the second hydraulic cylinder is hinged to the connecting rod frame, the output end of the third hydraulic cylinder is hinged to the rotating hinge frame, and the output end of the first motor is connected with one end of the rotating platform.
As a further optimization scheme of the invention, the transportation frame comprises a connection frame, a flaring type transportation pipe fixedly connected to one end of the connection frame and a soil material output port obliquely connected to the flaring type transportation pipe, wherein the soil material output port is communicated with the inner space of the flaring type transportation pipe, and the connection frame is detachably connected to the installation frame.
As a further optimization scheme of the invention, the spiral feeding assembly comprises a second motor and a partition plate which are fixedly connected to the inner wall of the connecting frame, a bearing arranged on the partition plate, a hollow shaft rod connected to the bearing, a spiral conveying blade connected to the outer wall of the hollow shaft rod and a soil discharging drill bit connected to one end of the hollow shaft rod, wherein one end of the hollow shaft rod extends to the elastic telescopic assembly, and the other end of the hollow shaft rod is detachably connected with the output shaft end of the second motor.
As a further optimization scheme of the invention, the elastic expansion assembly comprises an outer corrugated pipe, an inner corrugated pipe and a buffer sensing assembly positioned between the outer corrugated pipe and the inner corrugated pipe, wherein two ends of the outer corrugated pipe, the inner corrugated pipe and the buffer sensing assembly are respectively fixedly connected with a flaring type conveying pipe and a cutting-in pipe fitting, the cutting-in pipe fitting and the flaring type conveying pipe are coaxially arranged, and the buffer sensing assembly is used for acquiring a resistance value born by the cutting-in pipe fitting when the cutting-in pipe fitting cuts into soil and applying thrust in the direction opposite to the resistance value to the cutting-in pipe fitting.
As a further optimization scheme of the invention, the buffer sensing assembly comprises a fourth hydraulic cylinder, a piston rod arranged in the fourth hydraulic cylinder in a sliding manner, a pressure sensor fixedly connected to the outer wall of the fourth hydraulic cylinder and a spring connected between one end of the piston rod and the pressure sensor, wherein one end of the fourth hydraulic cylinder is fixedly connected with a flaring conveying pipe, and one end of the piston rod is fixedly connected with a cutting pipe fitting.
As a further optimization scheme of the invention, the outer wall of the flaring type conveying pipe is connected with a control module, the control module comprises an arc-shaped shell connected to the outer wall of the flaring type conveying pipe, a PLC hydraulic control system and a data transmission system, the PLC hydraulic control system is arranged in the arc-shaped shell, the fourth hydraulic cylinder is connected with the PLC hydraulic control system, and the pressure sensor is electrically connected with the data transmission system.
As a further optimization scheme of the invention, the annular power supply assembly comprises an insulating ring body fixedly connected to the inner wall of the connecting frame, a plurality of annular grooves formed in the insulating ring body, a power supply ring connected to the inner wall of the annular grooves and a power line electrically connected with the power supply ring, and one end of the power line penetrates through the connecting frame.
As a further optimization scheme of the invention, the rock limiting assembly comprises a plurality of electric push rods, a cutting tool bit connected to the output end of the electric push rods, a plurality of insulating pipes and a conductive piece connected to one end of each insulating pipe, wherein the electric push rods are electrically connected with the conductive pieces, the electric push rods are fixedly connected to the outer wall of the hollow shaft rod at the position close to the soil discharging drill bit, the insulating pipes are fixedly connected to the outer wall of the hollow shaft rod at the position close to the insulating ring body, and the conductive pieces are correspondingly contacted with the power supply rings.
The invention has the beneficial effects that: according to the invention, the adopted substance transferring comprehensive mechanism can continuously advance and transfer the soil out of the foundation pit after being inserted into the soil, and has an advancing buffer stop time when encountering obstacles in the process of inserting the soil, so that the drill bit can be effectively prevented from damaging a foundation pit supporting structure, when the obstacles are not foundation pit supporting, the substance transferring comprehensive mechanism can continuously advance, the blocking force is detected according to the elastic induction type cutting-in component in the substance transferring comprehensive mechanism, when the resistance is constant and the soil transferring component can continuously advance, the required pulling force value for taking out the obstacles can be roughly judged, the equipment is convenient to adjust, and in the process, the rock positioning component on the soil transferring component is stably connected with the obstacles, so that the obstacles can be conveniently taken out and stably stacked at the edge of the foundation pit to form a temporary foundation pit protecting wall, and the resource utilization rate and the excavating efficiency are improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of the substance transferring integrated mechanism of the present invention;
FIG. 3 is an enlarged view of the invention at A in FIG. 2;
FIG. 4 is an enlarged view of the invention at B in FIG. 2;
FIG. 5 is a schematic diagram of a buffering sensing assembly according to the present invention.
In the figure: 1. moving the vehicle body; 201. rotating the platform; 202. translating the track; 203. a first hydraulic cylinder; 204. moving the hinge frame; 205. a second hydraulic cylinder; 206. a link frame; 207. a third hydraulic cylinder; 208. rotating the hinge frame; 209. a mounting frame; 3. a substance transport integrated mechanism; 301. a connection frame; 302. a flared transport tube; 303. a second motor; 304. a hollow shaft; 305. spiral conveying blades; 306. a control module; 307. a soil discharging drill bit; 308. a soil material output port; 309. cutting into the pipe fitting; 310. an electric push rod; 311. an insulating ring body; 312. a ring groove; 313. a power supply ring; 314. a power line; 315. an insulating tube; 316. a conductive member; 317. an outer bellows; 318. an inner bellows; 319. a buffer sensing assembly; 3190. a fourth hydraulic cylinder; 3191. a piston rod; 3192. a pressure sensor; 3193. and (3) a spring.
Detailed Description
The subject matter described herein will now be discussed with reference to example embodiments. It is to be understood that these embodiments are merely discussed so that those skilled in the art may better understand and implement the subject matter described herein and that changes may be made in the function and arrangement of the elements discussed without departing from the scope of the disclosure herein. Various examples may omit, replace, or add various procedures or components as desired. In addition, features described with respect to some examples may be combined in other examples as well.
As shown in fig. 1-5, the soil excavation equipment for a narrow region in geotechnical engineering reverse construction comprises a movable vehicle body 1, a multi-directional adjusting mechanism connected to the movable vehicle body 1 and a substance transferring integrated mechanism 3 connected to the multi-directional adjusting mechanism, wherein the multi-directional adjusting mechanism is used for adjusting the spatial position data of the substance transferring integrated mechanism 3 by taking the movable vehicle body 1 as a base point;
the substance transferring integrated mechanism 3 comprises a soil transferring assembly, an elastic induction type cutting assembly connected to the input end of the soil transferring assembly, and a rock positioning assembly arranged on the soil transferring assembly;
the soil transferring assembly comprises a conveying frame and a spiral feeding assembly arranged in the conveying frame, wherein the input end of the conveying frame is communicated with the output end of the elastic induction type cutting assembly, one end of the spiral feeding assembly extends to the output end of the elastic induction type cutting assembly, and the spiral feeding assembly is used for conveying the soil entering the elastic induction type cutting assembly from the input end of the conveying frame to the output end of the conveying frame;
the elastic induction type cutting-in assembly comprises an elastic telescopic assembly connected to the input end of the conveying frame and a cutting-in pipe fitting 309 at one end of the elastic telescopic assembly, and the elastic telescopic assembly is used for detecting a resistance value when the cutting-in pipe fitting 309 cuts in soil;
the rock positioning assembly comprises an annular power supply assembly connected to the inner wall of the conveying frame and a plurality of rock limiting assemblies connected to one end of the spiral feeding assembly, wherein the rock limiting assemblies are electrically connected with the annular power supply assembly and are used for limiting and fixing rock blocks in soil.
It should be noted that, based on the reverse construction technology, in the process of digging a foundation pit in a narrow area, after the whole equipment is placed at the digging position, the multi-directional adjusting mechanism is carried by the moving vehicle body 1 and the substance transferring integrated mechanism 3 moves towards the position to be dug until the cut-in pipe 309 contacts with the soil body, at this time, the cut-in pipe 309 is subjected to resistance and makes the elastic expansion component generate elastic deformation, at this time, after the stress deformation of the elastic expansion component is detected, the transporting frame is driven by the multi-directional adjusting mechanism to move towards the cut-in pipe 309 and gradually squeeze the elastic expansion component, the elastic expansion component generates corresponding elastic force after further deformation and is applied to the cut-in pipe 309, when the elastic force applied to the cut-in pipe 309 is larger than the resistance of the soil body, the cut-in pipe 309 is gradually inserted into the soil body, the soil body entering the cut-in pipe 309 is discharged towards the outside of the foundation pit under the continuous transportation action of the spiral feeding component, if a foundation pit supporting structure exists on the advancing route, the cut-in pipe 309 is firstly contacted with the foundation pit supporting structure, the blocking force of the elastic telescopic component is changed, at the moment, a buffer distance is provided, the spiral feeding component can be prevented from being directly contacted with the foundation pit supporting structure to damage the foundation pit supporting structure, the high precision and the stability of excavation are improved, when the inserting process of the cut-in pipe 309 is blocked due to the encountering large rock or stone in the advancing process, at the moment, the transportation frame is controlled to continuously move, the elastic telescopic component is further extruded, one end of the spiral feeding component can be drilled into the rock block, at the moment, the rock limiting component in the rock positioning component can be controlled to be stably connected with the rock block, and the rock block can be conveniently and directly taken out, and can be stable and accurate with rock piece buttress that takes out in foundation ditch edge department, collapse the protection to the foundation ditch edge.
The multidirectional adjusting mechanism comprises a rotating platform 201 movably connected to the upper end of the moving vehicle body 1, a first motor fixedly connected to the inner wall of the moving vehicle body 1, a translation rail 202 fixedly connected to the rotating platform 201, a first hydraulic cylinder 203 fixedly connected to the translation rail 202, a moving hinge frame 204 slidably connected to the translation rail 202, a link frame 206 and a second hydraulic cylinder 205 hinged to the moving hinge frame 204, a rotating hinge frame 208 and a third hydraulic cylinder 207 hinged to one end of the link frame 206, and a mounting frame 209 fixedly connected to the rotating hinge frame 208, wherein the first hydraulic cylinder 203 is parallel to the translation rail 202, an output end of the first hydraulic cylinder 203 is fixedly connected to the moving hinge frame 204, an output end of the second hydraulic cylinder 205 is hinged to the link frame 206, an output end of the third hydraulic cylinder 207 is hinged to the rotating hinge frame 208, and an output end of the first motor is connected to one end of the rotating platform 201.
When the spatial position data of the substance transferring integrated mechanism 3 is adjusted by taking the moving vehicle body 1 as a base point through the multidirectional adjusting mechanism, the rotating platform 201 is driven to rotate at any angle in the horizontal plane through the first motor, then the included angle between the link frame 206 and the horizontal plane and the included angle between the link frame 206 and the rotating hinge frame 208 are respectively adjusted through the second hydraulic cylinder 205 and the third hydraulic cylinder 207, the position of the transportation frame can be conveniently adjusted, the transportation frame can be vertical to the horizontal plane or distributed at a set angle, then the moving hinge frame 204 is driven to move along the translation track 202 through the first hydraulic cylinder 203, and the moving hinge frame 204, the link frame 206, the rotating hinge frame 208, the mounting frame 209 and the transportation frame can be driven to move in the same direction and at the same distance, so that the transportation frame drives the cut-in pipe 309 to be inserted into the soil body.
The transportation frame comprises a connection frame 301, a flaring type transportation pipe 302 fixedly connected to one end of the connection frame 301 and a soil material output port 308 obliquely connected to the flaring type transportation pipe 302, wherein the soil material output port 308 is communicated with the inner space of the flaring type transportation pipe 302, and the connection frame 301 is detachably connected to the mounting frame 209;
the spiral feeding assembly comprises a second motor 303 and a partition plate fixedly connected to the inner wall of the connecting frame 301, a bearing arranged on the partition plate, a hollow shaft lever 304 connected to the bearing, a spiral conveying blade 305 connected to the outer wall of the hollow shaft lever 304, and a soil discharging drill 307 connected to one end of the hollow shaft lever 304, wherein one end of the hollow shaft lever 304 extends to the elastic telescopic assembly, and the other end of the hollow shaft lever 304 is detachably connected with the output shaft end of the second motor 303.
It should be noted that, as described above, after the pipe cutting 309 is inserted into the soil, the soil enters the pipe cutting 309, at this time, the soil discharging drill 307 contacts with the soil, the second motor 303 drives the hollow shaft 304 to rotate, when the hollow shaft 304 rotates, the spiral blade and the soil discharging drill 307 are driven to rotate in the same direction and at the same angle, the soil discharging drill 307 can primarily crush the soil and then discharge the soil to the spiral blade, when the spiral blade rotates, the primarily crushed soil can be conveyed to the soil output 308 and discharged from the soil output 308, and it should be noted that the soil output 308 can be connected with a hose or other receiving device, and further the soil is discharged from the foundation pit or the designated use position, which is not shown in the drawing, and when the soil discharging drill 307 contacts with the rock, the soil discharging drill 307 can drill into the rock block and form a drill hole for limiting connection between the rock limiting component and the rock block.
The elastic expansion assembly comprises an outer corrugated pipe 317, an inner corrugated pipe 318 and a buffer sensing assembly 319 positioned between the outer corrugated pipe 317 and the inner corrugated pipe 318, wherein two ends of the outer corrugated pipe 317, the inner corrugated pipe 318 and the buffer sensing assembly 319 are respectively fixedly connected with the flared transportation pipe 302 and the cut-in pipe 309, the cut-in pipe 309 and the flared transportation pipe 302 are coaxially arranged, and the buffer sensing assembly 319 is used for obtaining a resistance value born by the cut-in pipe 309 when the cut-in pipe 309 cuts into soil and applying a thrust force in the direction opposite to the resistance value to the cut-in pipe 309;
the buffer sensing assembly 319 comprises a fourth hydraulic cylinder 3190, a piston rod 3191 slidably arranged in the fourth hydraulic cylinder 3190, a pressure sensor 3192 fixedly connected to the outer wall of the fourth hydraulic cylinder 3190, and a spring 3193 connected between one end of the piston rod 3191 and the pressure sensor 3192, wherein one end of the fourth hydraulic cylinder 3190 is fixedly connected with the flared transportation pipe 302, and one end of the piston rod 3191 is fixedly connected with the cut-in pipe 309;
the outer wall of the flaring type transportation pipe 302 is connected with a control module 306, the control module 306 comprises an arc-shaped shell connected to the outer wall of the flaring type transportation pipe 302, a PLC hydraulic control system and a data transmission system, the PLC hydraulic control system and the data transmission system are arranged in the arc-shaped shell, a fourth hydraulic cylinder 3190 is connected with the PLC hydraulic control system, and a pressure sensor 3192 is electrically connected with the data transmission system.
It should be noted that, as described above, when the cut-in pipe 309 is subjected to resistance, the flared transport pipe 302 continuously moves, at this time, the outer bellows 317, the inner bellows 318, the fourth hydraulic cylinder 3190 and the spring 3193 connected between the flared transport pipe 302 and the cut-in pipe 309 are all in a compressed state, the fourth hydraulic cylinder 3190 initially controls the output pressure thereof to be the minimum value through the PLC hydraulic control system in the control module 306, at this time, along with the gradual deformation of the spring 3193, the elastic force generated by the spring 3193 is gradually increased until the elastic force is greater than the resistance applied by the cut-in pipe 309, the cut-in pipe 309 can be inserted into the soil body, and when the cut-in pipe 309 contacts the rock block, the output pressure of the fourth hydraulic cylinder 3190 can be controlled to be gradually increased through the PLC hydraulic control system until the maximum value, if the elastic force of the spring 3193 is changed in this process, the rock block is in a loose state when receiving the corresponding pushing force or pressure, a reference is provided for taking out the tension value adopted by the rock block, if the maximum value is exceeded, and if the loose is not occurred, the soil body needs to be taken out again, and the soil body needs to be prevented from being damaged;
when stacking rock blocks to form a preliminary protection wall at the edge of a foundation pit, the rock blocks can be embedded into the soil body at the edge of the foundation pit, specifically, the rock blocks are firstly pressed on the soil body at the edge of the foundation pit, at the moment, the rock limiting assembly is controlled to be separated from the rock blocks, at the moment, the rock blocks are tightly attached to the soil body at the edge of the foundation pit under the action of the output pressure of the fourth hydraulic cylinder 3190, so that the rock blocks are preliminarily embedded into the soil body at the edge of the foundation pit, then the cutting-in pipe fitting 309 is adjusted to be moved to different positions of the rock blocks through the multidirectional adjusting mechanism, the cutting-in pipe fitting 309 is moved to knock the rock blocks through the reciprocating movement of the fourth hydraulic cylinder 3190, the rock blocks can be stably embedded into the soil body at the edge of the foundation pit, the rock blocks are stacked sequentially from bottom to top, the stability of the preliminary protection wall can be improved, the soil body at the edge of the foundation pit is prevented from being influenced by external factors and collapsing towards a small range in the foundation pit, and the subsequent trimming workload is reduced.
The annular power supply assembly comprises an insulating ring body 311 fixedly connected to the inner wall of the connecting frame 301, a plurality of annular grooves 312 arranged on the insulating ring body 311, a power supply ring 313 connected to the inner wall of the annular grooves 312, and a power line 314 electrically connected with the power supply ring 313, wherein one end of the power line 314 penetrates through the connecting frame 301.
The rock limiting assembly comprises a plurality of electric push rods 310, a cutting bit connected to the output end of the electric push rods 310, a plurality of insulating pipes 315 and a conductive piece 316 connected to one end of the insulating pipes 315, wherein the electric push rods 310 are electrically connected with the conductive piece 316, the plurality of electric push rods 310 are fixedly connected to the outer wall of the hollow shaft rod 304 at the position close to the soil discharging drill bit 307, the plurality of insulating pipes 315 are fixedly connected to the outer wall of the hollow shaft rod 304 at the position close to the insulating ring body 311, and the plurality of conductive pieces 316 are correspondingly contacted with the plurality of power supply rings 313.
It should be noted that, as described above, when the earth-discharging drill 307 drills into a rock block, a drill hole is formed on the rock block, at this time, the electric putter 310 connected to the hollow shaft rod 304 extends, in the extending process, the electric putter 310 and the cutting bit connected to the output end thereof all rotate along with the hollow shaft rod 304, after the cutting bit contacts with the inner wall of the drill hole on the rock block, the inner wall of the drill hole is cut in a ring shape, and an annular cutting groove is formed on the inner wall of the drill hole, until the output end of the electric putter 310 extends into the annular cutting groove shaft, at this time, the hollow shaft rod 304 is connected with the rock block in a limiting manner through the electric putter 310, and in this process, the electric putter 310 is electrically connected with the power supply ring 313 in the junction ring body all the time, so that electric energy can be provided for the electric putter 310, and in the same way, when the electric putter 310 is controlled to retract reversely, the electrodes of the connection of the power supply rings 313 to the circuits are converted through circuit switching, so that the electric putter 310 can retract reversely.
The present embodiment has been described above, but the present embodiment is not limited to the above-described specific embodiment, which is merely illustrative and not restrictive, and many forms can be made by those of ordinary skill in the art in light of the present embodiment, which fall within the protection of the present embodiment.
Claims (8)
1. The soil excavation equipment for the narrow region in the geotechnical engineering reverse construction is characterized by comprising a movable vehicle body (1), a multidirectional adjusting mechanism connected to the movable vehicle body (1) and a substance transferring integrated mechanism (3) connected to the multidirectional adjusting mechanism, wherein the multidirectional adjusting mechanism is used for adjusting spatial position data of the substance transferring integrated mechanism (3) by taking the movable vehicle body (1) as a base point;
the substance transferring comprehensive mechanism (3) comprises a soil transferring assembly, an elastic induction type cutting-in assembly connected to the input end of the soil transferring assembly and a rock positioning assembly arranged on the soil transferring assembly;
the soil transferring assembly comprises a conveying frame and a spiral feeding assembly arranged in the conveying frame, wherein the input end of the conveying frame is communicated with the output end of the elastic induction type cutting assembly, one end of the spiral feeding assembly extends to the output end of the elastic induction type cutting assembly, and the spiral feeding assembly is used for conveying soil entering the elastic induction type cutting assembly from the input end of the conveying frame to the output end of the conveying frame;
the elastic induction type cutting-in assembly comprises an elastic telescopic assembly connected to the input end of the conveying frame and a cutting-in pipe fitting (309) at one end of the elastic telescopic assembly, and the elastic telescopic assembly is used for detecting a resistance value when the cutting-in pipe fitting (309) cuts in soil;
the spiral feeding assembly comprises a hollow shaft lever (304) with one end extending to the elastic telescopic assembly and a soil discharging drill bit (307) connected to one end of the hollow shaft lever (304);
the rock positioning assembly comprises an annular power supply assembly connected to the inner wall of the conveying frame and a plurality of rock limiting assemblies connected to one end of the spiral feeding assembly, wherein the rock limiting assemblies are electrically connected with the annular power supply assembly and are used for limiting and fixing rock blocks in soil;
the annular power supply assembly comprises an insulating ring body (311), a plurality of annular grooves (312) arranged on the insulating ring body (311), a power supply ring (313) connected to the inner wall of the annular grooves (312) and a power line (314) electrically connected with the power supply ring (313);
the rock limiting assembly comprises a plurality of electric push rods (310), a cutter head connected to the output end of the electric push rods (310), a plurality of insulating pipes (315) and a conductive piece (316) connected to one end of each insulating pipe (315), wherein the electric push rods (310) are electrically connected with the conductive piece (316), the electric push rods (310) are fixedly connected to the outer wall of each hollow shaft rod (304) at the position close to the soil discharging drill bit (307), the insulating pipes (315) are fixedly connected to the outer wall of each hollow shaft rod (304) at the position close to the insulating ring body (311), and the conductive pieces (316) are in corresponding contact with the power supply rings (313).
2. The soil excavation device for a narrow region in reverse construction of geotechnical engineering according to claim 1, wherein the multidirectional adjusting mechanism comprises a rotating platform (201) movably connected to the upper end of a moving vehicle body (1), a first motor fixedly connected to the inner wall of the moving vehicle body (1), a translation rail (202) fixedly connected to the rotating platform (201), a first hydraulic cylinder (203) fixedly connected to the translation rail (202), a movable hinge frame (204) slidingly connected to the translation rail (202), a link rod frame (206) and a second hydraulic cylinder (205) hinged to the movable hinge frame (204), a rotating hinge frame (208) and a third hydraulic cylinder (207) hinged to one end of the link rod frame (206), and a mounting frame (209) fixedly connected to the rotating hinge frame (208), wherein the first hydraulic cylinder (203) is arranged in parallel to the translation rail (202), an output end of the first hydraulic cylinder (203) is fixedly connected to the movable hinge frame (204), an output end of the second hydraulic cylinder (205) is hinged to an output end of the link rod frame (206), and an output end of the link rod frame (208) is hinged to the first hydraulic cylinder (201).
3. The soil excavation equipment for a narrow region in geotechnical engineering reverse construction according to claim 2, wherein the transportation frame comprises a connection frame (301), a flaring type transportation pipe (302) fixedly connected to one end of the connection frame (301) and a soil material output port (308) obliquely connected to the flaring type transportation pipe (302), the soil material output port (308) is communicated with the inner space of the flaring type transportation pipe (302), and the connection frame (301) is detachably connected to the installation frame (209).
4. A device for excavating soil in a narrow region in reverse construction of geotechnical engineering according to claim 3, wherein the spiral feeding assembly comprises a second motor (303) fixedly connected to the inner wall of the connecting frame (301), a partition plate, a bearing arranged on the partition plate, and a spiral conveying blade (305) connected to the outer wall of the hollow shaft lever (304), the other end of the hollow shaft lever (304) is detachably connected with the output shaft end of the second motor (303), and the hollow shaft lever (304) is connected with the bearing.
5. The device for excavating a soil body in a narrow region in reverse construction of geotechnical engineering according to claim 4, wherein the elastic telescopic assembly comprises an outer corrugated pipe (317) and an inner corrugated pipe (318) and a buffer sensing assembly (319) positioned between the outer corrugated pipe (317) and the inner corrugated pipe (318), two ends of the outer corrugated pipe (317), the inner corrugated pipe (318) and the buffer sensing assembly (319) are fixedly connected with the flared transportation pipe (302) and the cut-in pipe (309) respectively, the cut-in pipe (309) and the flared transportation pipe (302) are coaxially arranged, and the buffer sensing assembly (319) is used for acquiring a resistance value born by the cut-in pipe (309) when the cut-in pipe (309) cuts in the soil body and applying a thrust force in a direction opposite to the resistance value.
6. The device for excavating soil in a narrow region in reverse construction of geotechnical engineering according to claim 5, wherein the buffer sensing assembly (319) comprises a fourth hydraulic cylinder (3190), a piston rod (3191) slidably arranged in the fourth hydraulic cylinder (3190), a pressure sensor (3192) fixedly connected to the outer wall of the fourth hydraulic cylinder (3190), and a spring (3193) connected between one end of the piston rod (3191) and the pressure sensor (3192), one end of the fourth hydraulic cylinder (3190) is fixedly connected with a flared transportation pipe (302), and one end of the piston rod (3191) is fixedly connected with a cut-in pipe fitting (309).
7. The soil excavation equipment for a narrow region in geotechnical engineering reverse construction according to claim 6, wherein a control module (306) is connected to the outer wall of the flared transportation pipe (302), the control module (306) comprises an arc-shaped shell connected to the outer wall of the flared transportation pipe (302), a PLC hydraulic control system arranged in the arc-shaped shell and a data transmission system, the fourth hydraulic cylinder (3190) is connected with the PLC hydraulic control system, and the pressure sensor (3192) is electrically connected with the data transmission system.
8. The soil excavation equipment for a narrow region in geotechnical engineering reverse construction according to claim 7, wherein the insulating ring body (311) is fixedly connected to the inner wall of the connecting frame (301), and one end of the power line (314) penetrates through the connecting frame (301).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311631564.0A CN117364866B (en) | 2023-12-01 | 2023-12-01 | Soil excavation equipment for narrow region in geotechnical engineering reverse construction |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311631564.0A CN117364866B (en) | 2023-12-01 | 2023-12-01 | Soil excavation equipment for narrow region in geotechnical engineering reverse construction |
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| CN117364866B true CN117364866B (en) | 2024-02-23 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6418647B1 (en) * | 1999-05-20 | 2002-07-16 | Edwin A. Erickson | Feeding device for a ditch digging and cleaning system |
| KR100769089B1 (en) * | 2007-06-21 | 2007-10-22 | 주식회사 일성엔지니어링 | A rock boring machine adjustable to multi angles |
| CN115324140A (en) * | 2022-03-01 | 2022-11-11 | 中铁工程装备集团有限公司 | Soil bin for channel excavation heading machine |
| CN116575467A (en) * | 2022-06-28 | 2023-08-11 | 中国矿业大学(北京) | Modularized multi-device foundation pit excavation supporting equipment system and method thereof |
-
2023
- 2023-12-01 CN CN202311631564.0A patent/CN117364866B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6418647B1 (en) * | 1999-05-20 | 2002-07-16 | Edwin A. Erickson | Feeding device for a ditch digging and cleaning system |
| KR100769089B1 (en) * | 2007-06-21 | 2007-10-22 | 주식회사 일성엔지니어링 | A rock boring machine adjustable to multi angles |
| CN115324140A (en) * | 2022-03-01 | 2022-11-11 | 中铁工程装备集团有限公司 | Soil bin for channel excavation heading machine |
| CN116575467A (en) * | 2022-06-28 | 2023-08-11 | 中国矿业大学(北京) | Modularized multi-device foundation pit excavation supporting equipment system and method thereof |
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| CN117364866A (en) | 2024-01-09 |
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