CN113404052B - Foundation pit stone excavation method - Google Patents
Foundation pit stone excavation method Download PDFInfo
- Publication number
- CN113404052B CN113404052B CN202110561245.1A CN202110561245A CN113404052B CN 113404052 B CN113404052 B CN 113404052B CN 202110561245 A CN202110561245 A CN 202110561245A CN 113404052 B CN113404052 B CN 113404052B
- Authority
- CN
- China
- Prior art keywords
- cover body
- side wall
- hydraulic cylinder
- excavating
- foundation pit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000009412 basement excavation Methods 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 35
- 239000004575 stone Substances 0.000 title claims abstract description 16
- 239000002893 slag Substances 0.000 claims abstract description 36
- 239000000463 material Substances 0.000 claims abstract description 24
- 238000010276 construction Methods 0.000 claims abstract description 12
- 238000005422 blasting Methods 0.000 claims abstract description 6
- 238000004519 manufacturing process Methods 0.000 claims abstract description 5
- 230000003068 static effect Effects 0.000 claims abstract description 5
- 239000000428 dust Substances 0.000 claims description 49
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 37
- 238000005507 spraying Methods 0.000 claims description 17
- 230000000903 blocking effect Effects 0.000 claims description 9
- 239000004744 fabric Substances 0.000 claims description 9
- 238000000605 extraction Methods 0.000 claims description 6
- 239000003595 mist Substances 0.000 claims description 6
- 230000001629 suppression Effects 0.000 claims 2
- 239000007921 spray Substances 0.000 description 20
- 238000009792 diffusion process Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 9
- 238000005086 pumping Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 230000002265 prevention Effects 0.000 description 4
- 239000010881 fly ash Substances 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Images
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/007—Fume suction nozzles arranged on a closed or semi-closed surface, e.g. on a circular, ring-shaped or rectangular surface adjacent the area where fumes are produced
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/30—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom
- E02F3/32—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom working downwardly and towards the machine, e.g. with backhoes
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
- E02F3/401—Buckets or forks comprising, for example, shock absorbers, supports or load striking scrapers to prevent overload
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
- E02F3/425—Drive systems for dipper-arms, backhoes or the like
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Earth Drilling (AREA)
Abstract
The application relates to a foundation pit stone excavation method, which belongs to the field of concrete wet blasting machines and comprises the steps of S1, manufacturing a free surface; s2, performing initial excavation on the foundation pit by using a static blasting construction process; and S3, performing secondary excavation on the foundation pit after the initial excavation is finished in a mechanical mode, wherein excavating equipment capable of reducing falling of slag materials from the air in the excavating and transferring process is utilized in the step S3. Excavating equipment can be used to excavate the slag in the foundation ditch to transport to the inside transportation of dregs transport vechicle, excavating equipment's setting can also reduce the phenomenon that the dregs spilled to ground from excavating equipment in the in-process of construction, and then improves the security of construction.
Description
Technical Field
The application relates to the field of excavating equipment, in particular to a foundation pit stone excavation method.
Background
The foundation pit is a soil pit excavated at the design position of the foundation according to the elevation of the foundation and the plane size of the foundation.
In the related art, as disclosed in the publication: CN109653209A published date is: chinese patent No. 04/19 in 2019 proposes a construction process for excavating urban station stone, which comprises the steps of S100, manufacturing a free surface; s200, performing primary excavation on a foundation pit by using a static blasting construction process; and S300, performing secondary excavation on the foundation pit subjected to primary excavation in a mechanical mode. In step S300, secondary excavation is performed by a general excavator. The excavator comprises an excavator body, a mechanical arm connected with the excavator body and an excavating bucket arranged at the end part of the mechanical arm.
When the excavator excavates, the excavator is selected to move the excavator body firstly so that the excavator body can move to an excavation site, then the excavator bucket is controlled to move through the mechanical arm so as to shovel and dig the material slag, and then the excavator body and the excavator bucket are controlled to move again so as to discharge the material slag in the excavator bucket to a transport vehicle for transportation.
With respect to the related art among the above, the inventors consider that the following drawbacks exist: after the excavating bucket is full of material slag, the slag in the bucket is prone to falling to the ground when workers drive the machine body and the bucket to operate, and therefore the potential safety hazard is large.
Disclosure of Invention
In order to reduce scattering of material slag during transferring, the application provides a foundation pit stone excavation method.
The application provides a foundation pit stone excavation method, which relates to the following technical scheme:
a foundation pit stone excavation method comprises the steps of S1, manufacturing a free surface; s2, performing initial excavation on the foundation pit by using a static blasting construction process; and S3, performing secondary excavation on the foundation pit after the initial excavation is finished in a mechanical mode, wherein excavating equipment capable of reducing slag falling from the air in the excavating and transferring process is utilized in the step S3.
Through adopting above-mentioned technical scheme, excavating equipment can be used excavates the slag in the foundation ditch to transport and transport to the inside transportation of dregs transport vechicle, excavating equipment's setting can also reduce the phenomenon that the dregs spill to ground from excavating equipment at the in-process of construction, and then improves the security of construction.
Optionally, the excavating equipment comprises an excavator and an anti-falling device arranged at a mechanical arm of the excavator, and the anti-falling device comprises an anti-falling cover arranged above the excavating bucket and a control mechanism for controlling the working height of the anti-falling cover.
By adopting the technical scheme, when the excavating bucket is operated by the excavator and is filled with slag materials, the control mechanism controls the anti-falling cover to move downwards, so that the excavating bucket is covered in the anti-falling cover, and the slag materials in the excavating bucket are difficult to scatter to the ground in the process of transferring to a transport vehicle.
Optionally, the anti-falling cover comprises a cover body and a side wall expansion plate arranged at the lower side of the opening of the cover body and used for abutting against the side wall of the excavating bucket, and the side wall expansion plate is connected with a control expansion mechanism for controlling the side wall expansion plate to abut against or be separated from the excavating bucket.
By adopting the technical scheme, when the excavator bucket cover is used, when the cover body covers the outer part of the excavator bucket, the telescopic mechanism is controlled to control the side wall telescopic plate to tightly abut against the side wall of the excavator bucket, and the scattering of slag in the excavator bucket is further reduced.
Optionally, the control mechanism includes a main rod and a secondary rod, one end of the main rod is hinged to the mechanical arm, the other end of the main rod is hinged to the secondary rod, the cover body is hinged to the end of the secondary rod, and the control mechanism further includes a control assembly arranged at each hinge point to control the main rod, the secondary rod and the cover body to rotate.
By adopting the technical scheme, when the excavating bucket is filled with a slag shaking material, the control assembly controls the main rod and the secondary rod to rotate and controls the cover body to rotate, so that the cover body is covered in the excavating bucket.
Optionally, the control assembly includes first swing hydraulic cylinder, second swing hydraulic cylinder and third swing hydraulic cylinder, the cylinder body and the arm fixed connection of first swing hydraulic cylinder, and the rotation axis and the mobile jib fixed connection of first swing hydraulic cylinder, the cylinder body and the mobile jib fixed connection of second swing hydraulic cylinder, and the rotation axis and the time pole fixed connection of second swing hydraulic cylinder, the cylinder body and the time pole fixed connection of third swing hydraulic cylinder, the rotation axis and the cover body fixed connection of third swing hydraulic cylinder.
Through adopting above-mentioned technical scheme, after excavating equipment excavation was accomplished, the rotation axis of first swing hydraulic cylinder, second swing hydraulic cylinder and third swing hydraulic cylinder rotated to make the cover body break away from the excavation fill, simultaneously, mobile jib and time pole are folded together each other, so that excavating equipment's structure is compacter.
Optionally, the opening of the cover body extends to a position below the opening of the excavating bucket, a sliding groove is formed in the side wall of the cover body along the length direction of the side wall of the excavating bucket, the side wall expansion plate is slidably disposed in the sliding groove, the control expansion mechanism includes a plurality of control hydraulic cylinders, the cylinder bodies of the control hydraulic cylinders are fixedly connected with the outer wall of the cover body, and the piston rods of the control hydraulic cylinders are fixedly connected with the side wall expansion plate.
By adopting the technical scheme, when the piston rod of the control hydraulic cylinder contracts, the side wall expansion plate slides in the sliding groove, and meanwhile, the side wall expansion plate tightly abuts against the side wall of the excavating bucket so as to reduce scattering of material slag. When the excavating bucket needs to unload materials, a piston rod of the control hydraulic cylinder stretches to enable the side wall expansion plate to be separated from the excavating bucket.
Optionally, the cover body is further connected with a dust falling mechanism, the dust falling mechanism comprises a dust pumping assembly, the dust pumping assembly comprises a suction pipe and a dust pumping device, one end of the suction pipe penetrates through the cover body and points to the excavating bucket, the other end of the suction pipe is connected with the dust pumping device, and the dust pumping device is fixedly arranged at the excavator.
Through adopting above-mentioned technical scheme, when digging bucket rotates in order to unload, the opening of the cover body sets up towards the below, and at this moment, take out the flying dust that the dirt gas suction produced when unloading, at this moment, the cover body has the effect of dust extraction cover to make the flying dust can be better by the suction.
Optionally, the dust fall mechanism further comprises a spraying assembly for spraying water mist into the excavating bucket, the spraying assembly comprises a spraying nozzle, a water guide pipe and a water supply pump, the spraying nozzle is fixedly connected with the inner wall of the cover body, the water guide pipe is respectively communicated with the spraying nozzle and the water supply pump, and the water supply pump is arranged at the excavator.
By adopting the technical scheme, after the excavating bucket is covered in the cover body, the water supply pump sprays water mist, so that the water mist is scattered at the slag in the excavating bucket, and the diffusion effect of flying dust in the unloading process of the excavator is reduced.
Optionally, the atomizing nozzle is provided with a plurality ofly along cover body circumference, and the central axis of atomizing nozzle and the contained angle between the cover body are 45 degrees.
Through adopting above-mentioned technical scheme, the atomizer is provided with a plurality ofly, can improve the spraying effect, reduces the diffusion of flying dust when unloading, and simultaneously, the central axis of atomizer and the contained angle between the cover body inner wall are 45 degrees, can make the in-process of spraying have partly water liquid to spray to the inner wall of the cover body on, when the excavator at the in-process of unloading, the easy adhesion of flying dust of upwards diffusion is to cover body side wall on, and then reduces the diffusion of flying dust.
To sum up, the present application includes at least one of the following beneficial technical effects:
1. setting of excavating equipment: the excavating equipment can be used for excavating the slag in the foundation pit so as to be convenient for transferring to the interior of the slag transport vehicle for transferring, and the arrangement of the excavating equipment can also reduce the phenomenon that the slag falls to the ground from the excavating equipment in the construction process, so that the construction safety is improved;
2. setting of a spray nozzle: the spray nozzles are arranged in plurality, so that the spraying effect can be improved, the diffusion effect of flying dust during unloading is reduced, meanwhile, the included angle between the central axis of the spray nozzles and the inner wall of the cover body is 45 degrees, a part of water liquid can be sprayed onto the inner wall of the cover body in the spraying process, and when the excavator unloads, the flying dust diffused upwards is easily adhered to the side wall of the cover body, so that the diffusion effect of the flying dust is reduced;
3. the dust extraction component is arranged: when the excavating bucket rotates to unload materials, the opening of the cover body faces downwards, at the moment, the dust exhaust gas sucks flying dust generated during unloading materials, and at the moment, the cover body has the function of the dust exhaust cover, so that the flying dust can be sucked better.
Drawings
FIG. 1 is a schematic diagram of the working state of an embodiment of the present application;
FIG. 2 is a schematic view of the overall structure of the anti-falling device according to the embodiment of the present application;
FIG. 3 is an enlarged schematic view of portion A of FIG. 2;
fig. 4 is a schematic view of the connection between the spray nozzle and the housing of the embodiments of the subject application.
Description of reference numerals: 100. a body; 200. a mechanical arm; 300. excavating a bucket; 400. a falling prevention cover; 410. a cover body; 411. a sliding groove; 420. a side wall expansion plate; 421. connecting the long blocks; 430. controlling the hydraulic cylinder; 440. connecting columns; 450. material blocking cloth; 500. a control mechanism; 510. a main rod; 520. a secondary rod; 530. a first swing hydraulic cylinder; 540. a second swing hydraulic cylinder; 550. a third swing hydraulic cylinder; 600. a dust extraction assembly; 610. a suction tube; 620. a dust extractor; 700. a spray assembly; 710. a spray nozzle; 720. a water conduit; 730. and a water supply pump.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses a foundation pit stone excavation method. Referring to fig. 1, the foundation pit stone excavation method comprises the steps of S1, manufacturing a free surface; s2, performing primary excavation on the foundation pit by using a static blasting construction process; and S3, carrying out secondary excavation on the foundation pit after the primary excavation is finished by using excavation equipment in a mechanical mode.
The excavating equipment comprises an excavator and an anti-falling device, the excavator comprises a machine body 100 and an excavating bucket 300, the excavating bucket 300 is connected with the machine body 100 through a mechanical arm 200, and a worker can control the excavating bucket 300 to work through the mechanical arm 200 so as to excavate slag. The excavating bucket 300 includes a pair of side walls disposed parallel to each other, and a bottom wall disposed between the pair of side walls, and one end of the bottom wall is provided with bucket teeth so that the excavating bucket 300 shovels slag. In operation, a worker operates the body 100 and controls the excavating bucket 300 to excavate slag through the robot arm 200.
Referring to fig. 1 and 2, the falling prevention apparatus includes a falling prevention cover 400 connected to a robot arm 200 and disposed above an excavating bucket 300, and a control mechanism 500 for controlling a working height and a working angle of the falling prevention cover 400.
Referring to fig. 2 and 3, the drop-preventing cover 400 includes a cover body 410 for covering the excavating bucket 300 and a pair of side wall expansion plates 420 provided at an open lower side of the cover body 410 for abutting against the side walls of the excavating bucket 300, the side wall expansion plates 420 being symmetrically disposed, and the excavating bucket 300 being located between the pair of side wall expansion plates 420 when the side wall expansion plates 420 are operated. The side wall expansion plate 420 is connected with a control expansion mechanism which controls the side wall expansion plate to tightly abut against the side wall of the excavating bucket 300 or to be separated from the side wall of the excavating bucket 300. The opening of the cover 410 extends to the lower part of the opening of the excavating bucket 300, a pair of sliding grooves 411 are arranged on the side wall of the cover 410 along the length direction of the side wall of the excavating bucket 300, and the side wall expansion plate 420 is arranged in the sliding grooves 411 in a sliding manner along the length direction perpendicular to the sliding grooves 411. A side edge of the side wall expansion plate 420 far away from the excavating bucket 300 is fixedly connected with a connecting long block 421, the control expansion mechanism comprises a plurality of control hydraulic cylinders 430, a power source of the control hydraulic cylinders 430 is provided by a hydraulic pump, the cylinder bodies of the control hydraulic cylinders 430 are fixedly connected with the outer wall of the cover body 410, and piston rods of the control hydraulic cylinders 430 are fixedly welded with the connecting long block 421.
When the excavating bucket 300 is full of material slag, the cover body 410 covers the excavating bucket 300, and then the piston rod of the hydraulic cylinder 430 is controlled to contract, so that the side wall expansion plate 420 is abutted against the side wall of the excavating bucket 300, and the accidental dropping of the slag material during transportation is further reduced. In order to further reduce the dropping of slag, the side wall expansion plates 420 are respectively provided with a pair of connecting columns 440, one ends of the connecting columns 440 are welded with the side wall expansion plates 420, the connecting columns 440 are arranged in parallel with the side wall of the excavating bucket 300, a material blocking cloth 450 is arranged between each connecting column 440 and the cover body 410, one side edge of each material blocking cloth 450 is fixedly connected with the connecting column 440, and the other side edge of each material blocking cloth 450 is fixedly connected with the cover body 410.
When the excavator bucket 300 works, the excavator bucket 300 is filled with material slag, a piston rod of the hydraulic cylinder 430 is controlled to contract, so that the side wall expansion plate 420 is tightly abutted to the side wall of the excavator bucket 300, the connecting column 440 moves towards the side wall close to the excavator bucket 300 in the process of expansion and contraction of the side wall expansion plate until the side wall of the connecting column 440 is attached to the side wall of the excavator bucket 300, and the material blocking cloth 450 is opened in the process of the connecting column 440 approaching the excavator bucket 300, so that the slag falling to the side wall expansion plate 420 is blocked to a certain extent.
Referring to fig. 1 and 2, the control mechanism 500 includes a primary lever 510, a secondary lever 520, and a control assembly. The primary lever 510 and the secondary lever 520 are both disposed between the robot arm 200 and the body 100, and the central axes of the primary lever 510, the secondary lever 520, and the robot arm 200 are all located at the same plane. The main lever 510 has one end hinged to the robot arm 200 and the other end hinged to one end of the secondary lever 520, and the cover 410 is hinged to the other end of the secondary lever 520. The control assembly is used to control the relative rotation of the primary shaft 510, the secondary shaft 520, and the housing 410. The control assembly comprises a first swing hydraulic cylinder 530, a second swing hydraulic cylinder 540 and a third swing hydraulic cylinder 550, and power sources of the first swing hydraulic cylinder 530, the second swing hydraulic cylinder 540 and the third swing hydraulic cylinder 550 are all provided by hydraulic pumps. The cylinder body of the first swing hydraulic cylinder 530 is fixedly connected to the robot arm 200, the rotating shaft of the first swing hydraulic cylinder 530 is fixedly connected to the main rod 510, the cylinder body of the second swing hydraulic cylinder 540 is fixedly connected to the main rod 510, the rotating shaft of the second swing hydraulic cylinder 540 is fixedly connected to the sub-rod 520, the cylinder body of the third swing hydraulic cylinder 550 is fixedly connected to the sub-rod 520, and the rotating shaft of the third swing hydraulic cylinder 550 is fixedly connected to the housing 410.
When the excavating bucket 300 is full of slag, the rotating shafts of the first swing hydraulic cylinder 530, the second swing hydraulic cylinder 540 and the third swing hydraulic cylinder 550 rotate, so that the cover 410 is arranged at the position of the excavating bucket 300, and the slag in the excavating bucket 300 is not easy to fall off during transferring.
Referring to fig. 1, 2 and 4, in order to reduce the diffusion of the fly ash during the unloading of the excavator bucket 300, a dust falling mechanism is further connected to the housing 410, and the dust falling mechanism includes a dust suction assembly 600 for sucking the fly ash and a spray assembly 700 for spraying water mist toward the excavator bucket 300. The dust extraction assembly 600 includes a suction pipe 610 having one end disposed through the cover 410 and directed to the excavating bucket 300, and a dust extractor 620, the other end of the suction pipe 610 being connected to the dust extractor 620, the dust extractor 620 being fixedly disposed at the machine body 100.
During discharging, a piston rod of the hydraulic cylinder 430 is controlled to contract, the side wall expansion plate 420 is separated from the side wall of the excavating bucket 300, then the excavating bucket 300 rotates, so that slag in the excavating bucket falls to a transport vehicle, the dust extractor 620 works when the slag falls, so that flying dust can be sucked, the flying dust is sucked more easily under the action of the cover body 410, and further the flying dust is difficult to diffuse.
The spray assembly 700 includes a spray nozzle 710, a water guide pipe 720, and a water supply pump 730, the water supply pump 730 is disposed in a water tank, and the water tank is fixedly disposed at the machine body 100. The spray nozzle 710 is fixedly connected with the inner wall of the cover body 410, the spray nozzle 710 is arranged towards the excavator bucket 300, one end of the water guide pipe 720 penetrates through the cover body 410 and is connected with the spray nozzle 710, and the other end of the water guide pipe 720 is communicated with the water supply pump 730.
During operation, the water supply pump 730 pumps the water solution into the water conduit 720, and the water solution is sprayed to the excavator bucket 300 through the spray nozzle 710 to reduce the generation of flying dust.
In order to further reduce the effect of dust diffusion, a plurality of spray nozzles 710 are arranged along the circumferential direction of the cover body 410, and the included angle between the central axis of the spray nozzle 710 and the cover body 410 is 45 degrees. The setting of a plurality of fog nozzle 710 can increase the spray volume on the one hand, improves the dust fall effect, simultaneously, is certain angle setting with fog nozzle 710, can make partial liquid spray to cover body 410 inner wall department, and then makes the flying dust easily by the adhesion in cover body 410 department when diffusing to cover body 410 department, and difficult further diffusion.
The implementation principle of the embodiment of the application is as follows: when the excavator bucket 300 is full of slag, the rotating shafts of the first swing hydraulic cylinder 530, the second swing hydraulic cylinder 540 and the third swing hydraulic cylinder 550 all rotate to enable the cover body 410 to cover the excavator bucket 300, then the piston rod of the hydraulic cylinder 430 is controlled to contract to enable the side wall expansion plate 420 to tightly abut against the side wall of the excavator bucket 300, meanwhile, the connecting column 440 is attached to the side wall of the excavator bucket 300, and the material blocking cloth 450 stretches to reduce scattering of slag during transportation.
Thereafter, the worker operates the machine body 100 to the transporter, and operates the robot arm 200 of the excavator to rotate the excavating bucket 300, thereby transferring the slag at the excavating bucket 300 to the transporter. Before the excavator bucket 300 rotates, the water supply pump 730 supplies water into the water guide pipe 720 to spray water mist into the excavator bucket 300 and simultaneously adhere water liquid to the inner wall of the cover body 410, then the piston rod of the hydraulic cylinder 430 is controlled to stretch so that the side wall expansion plate 420 is separated from the excavator bucket 300, and in the separation process, the slag falling to the side wall expansion plate 420 is scraped under the action of the side wall of the sliding groove 411.
The excavating bucket 300 is then rotated to discharge the slag to the transport vehicle, and the dust extractor 620 is operated to extract fly ash through the cover 410 and the suction pipe 610 while discharging.
The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (6)
1. A foundation pit stone excavation method is characterized in that: the method comprises the following steps of S1, manufacturing a blank surface; s2, performing primary excavation on the foundation pit by using a static blasting construction process; s3, performing secondary excavation on the foundation pit after the primary excavation is finished in a mechanical mode, wherein excavating equipment capable of reducing slag falling from the air in the excavating and transferring process is utilized in the step S3;
the excavating equipment comprises an excavator and an anti-falling device arranged at a mechanical arm (200) of the excavator, wherein the anti-falling device comprises an anti-falling cover (400) arranged above an excavating bucket (300) and used for covering the excavating bucket (300) and a control mechanism (500) for controlling the working height of the anti-falling cover (400);
the anti-falling cover (400) comprises a cover body (410) and a side wall expansion plate (420) which is arranged at the lower side of an opening of the cover body (410) and used for abutting against the side wall of the excavating bucket (300), wherein the side wall expansion plate (420) is connected with a control expansion mechanism for controlling the side wall expansion plate to abut against the excavating bucket (300) or be separated from the excavating bucket (300);
the opening of the cover body (410) extends to the lower part of the opening of the excavating bucket (300), a sliding groove (411) is formed in the side wall of the cover body (410) along the length direction of the side wall of the excavating bucket (300), the side wall expansion plate (420) is arranged in the sliding groove (411) in a sliding mode, the telescopic control mechanism comprises a plurality of control hydraulic cylinders (430), the cylinder bodies of the control hydraulic cylinders (430) are fixedly connected with the outer wall of the cover body (410), and the piston rods of the control hydraulic cylinders (430) are fixedly connected with the side wall expansion plate (420);
the side wall expansion plate (420) is provided with a pair of connecting columns (440), one end of each connecting column (440) is welded with the side wall expansion plate (420), the connecting columns (440) are parallel to the side wall of the excavating bucket (300), a material blocking cloth (450) is arranged between each connecting column (440) and the cover body (410), one side edge of the material blocking cloth (450) is fixedly connected with the connecting columns (440), and the other side edge of the material blocking cloth (450) is fixedly connected with the cover body (410).
2. The foundation pit stone excavation method according to claim 1, wherein: control mechanism (500) includes mobile jib (510) and time pole (520), mobile jib (510) one end and articulated the setting of arm (200), the other end and time pole (520) articulate the setting, and cover body (410) and time pole (520) tip articulate the setting, control mechanism (500) still including set up in each pin joint department control mobile jib (510), time pole (520) and cover body (410) take place pivoted control assembly.
3. The excavation method for foundation pit stone as claimed in claim 2, wherein: the control assembly comprises a first swing hydraulic cylinder (530), a second swing hydraulic cylinder (540) and a third swing hydraulic cylinder (550), a cylinder body of the first swing hydraulic cylinder (530) is fixedly connected with the mechanical arm (200), a rotating shaft of the first swing hydraulic cylinder (530) is fixedly connected with the main rod (510), a cylinder body of the second swing hydraulic cylinder (540) is fixedly connected with the main rod (510), a rotating shaft of the second swing hydraulic cylinder (540) is fixedly connected with the secondary rod (520), a cylinder body of the third swing hydraulic cylinder (550) is fixedly connected with the secondary rod (520), and a rotating shaft of the third swing hydraulic cylinder (550) is fixedly connected with the cover body (410).
4. The excavation method for foundation pit stone as claimed in claim 1, wherein: the dust suppression mechanism is further connected with the cover body (410), the dust suppression mechanism comprises a dust extraction assembly (600), the dust extraction assembly (600) comprises a suction pipe (610) and a dust extractor (620), one end of the suction pipe (610) penetrates through the cover body (410) and points to the excavating bucket (300), the other end of the suction pipe (610) is connected with the dust extractor (620), and the dust extractor (620) is fixedly arranged at the excavator.
5. The foundation pit stone excavation method according to claim 4, wherein: the dust fall mechanism further comprises a spraying assembly (700) for spraying water mist into the excavating bucket (300), the spraying assembly (700) comprises a spraying nozzle (710), a water guide pipe (720) and a water supply pump (730), the spraying nozzle (710) is fixedly connected with the inner wall of the cover body (410), the water guide pipe (720) is respectively communicated with the spraying nozzle (710) and the water supply pump (730), and the water supply pump (730) is arranged at the excavator.
6. The foundation pit stone excavation method according to claim 5, wherein: the atomizing nozzle (710) is provided with a plurality of along cover body (410) circumference, and the central axis of atomizing nozzle (710) and the contained angle between the cover body (410) are 45 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110561245.1A CN113404052B (en) | 2021-05-22 | 2021-05-22 | Foundation pit stone excavation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110561245.1A CN113404052B (en) | 2021-05-22 | 2021-05-22 | Foundation pit stone excavation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113404052A CN113404052A (en) | 2021-09-17 |
| CN113404052B true CN113404052B (en) | 2022-11-08 |
Family
ID=77679197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110561245.1A Active CN113404052B (en) | 2021-05-22 | 2021-05-22 | Foundation pit stone excavation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113404052B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3180281U (en) * | 2012-09-24 | 2012-12-13 | 関工業株式会社 | Debris bucket for excavators |
| CN107034934A (en) * | 2017-05-14 | 2017-08-11 | 吕艳双 | A kind of road construction scraper bowl dust pelletizing system |
| CN206667316U (en) * | 2017-01-21 | 2017-11-24 | 中铁二十局集团第一工程有限公司 | A kind of excavator for preventing material leakage |
| CN207277398U (en) * | 2017-06-29 | 2018-04-27 | 浙江省建筑科学设计研究院有限公司 | A kind of anti-airborne dust excavator |
| CN109653209A (en) * | 2019-01-17 | 2019-04-19 | 中交（广州）建设有限公司 | City station rock excavation construction technology |
| CN210766954U (en) * | 2019-08-30 | 2020-06-16 | 陕西理工大学 | Dredging bucket mechanism of excavator |
-
2021
- 2021-05-22 CN CN202110561245.1A patent/CN113404052B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3180281U (en) * | 2012-09-24 | 2012-12-13 | 関工業株式会社 | Debris bucket for excavators |
| CN206667316U (en) * | 2017-01-21 | 2017-11-24 | 中铁二十局集团第一工程有限公司 | A kind of excavator for preventing material leakage |
| CN107034934A (en) * | 2017-05-14 | 2017-08-11 | 吕艳双 | A kind of road construction scraper bowl dust pelletizing system |
| CN207277398U (en) * | 2017-06-29 | 2018-04-27 | 浙江省建筑科学设计研究院有限公司 | A kind of anti-airborne dust excavator |
| CN109653209A (en) * | 2019-01-17 | 2019-04-19 | 中交（广州）建设有限公司 | City station rock excavation construction technology |
| CN210766954U (en) * | 2019-08-30 | 2020-06-16 | 陕西理工大学 | Dredging bucket mechanism of excavator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113404052A (en) | 2021-09-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103821194B (en) | A kind of excavation aspirates car | |
| CN206667316U (en) | A kind of excavator for preventing material leakage | |
| JP2014114653A (en) | Underground pipe construction apparatus utilizing robot | |
| CN113404052B (en) | Foundation pit stone excavation method | |
| CN202391436U (en) | Multifunctional mounting machine | |
| CN209011182U (en) | Mining scraping plate electric hydraulic excavating machine | |
| CN105781584A (en) | Concrete wet-spraying self-walking shotcrete support robot | |
| US5553405A (en) | Power-assisted shovel truck equipped with a water-feeding device and a water-draining device | |
| JP3021112B2 (en) | Hydraulic soil rig | |
| CN110080795A (en) | A kind of tunneling subway rapid construction mucking machine | |
| CN107558515A (en) | A kind of power shovel of civil engineering | |
| CN113846664A (en) | Continuous soil-taking and sinking machine for non-drainage open caisson | |
| CN104099964B (en) | Channel cleanout is dredged device | |
| CN207295807U (en) | A kind of power shovel of civil engineering | |
| CN209908680U (en) | Plunger type soil sand pump | |
| CN215829506U (en) | Be applied to dust device of excavator earthwork operation | |
| CN112796358A (en) | Underground mining prying scraper and mining method thereof | |
| JPH07216931A (en) | Automatic excavating device | |
| JP2004169495A (en) | Trommel bucket | |
| JPH0546440B2 (en) | ||
| CN205714218U (en) | Concrete spraying is from walking gunite robot | |
| CN210315722U (en) | Bulldozer with dust falling device | |
| CN109162309A (en) | A kind of mining scraping plate electric hydraulic excavating machine | |
| CN214363701U (en) | Spraying dust fall's cubic meter of earth and stone excavating gear | |
| JPH08246475A (en) | Caisson type pile tunnel interior wall lining method and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |