CN114032982A

CN114032982A - Civil engineering foundation pit excavating device and using method thereof

Info

Publication number: CN114032982A
Application number: CN202111384414.5A
Authority: CN
Inventors: 夏建俊; 王小平; 童丽忠; 卢丹; 陈正泽; 余力嘉; 石玲; 张海峰; 张建平
Original assignee: Zhejiang Hengchen Construction Group Co ltd
Current assignee: Zhejiang Hengchen Construction Group Co ltd
Priority date: 2021-11-19
Filing date: 2021-11-19
Publication date: 2022-02-11
Anticipated expiration: 2041-11-19
Also published as: CN114032982B

Abstract

The civil foundation pit excavating device comprises a movable carrier and an installation frame arranged on one side of the movable carrier, wherein a shovel plate is arranged on one side, away from the movable carrier, of the installation frame, the shovel plate is arranged on the installation frame in a sliding mode along the horizontal direction, and a first driving piece for driving the shovel plate to reciprocate is arranged on the installation frame; one side that the mounting bracket was kept away from to the shovel board rotates and is provided with the cutting board, and the rotation axis of cutting board is in the top of shovel board, and the rotation axis of cutting board sets up along the direction of sliding level of perpendicular to shovel board, and the length direction of cutting board is perpendicular with the rotation axis direction of self, and one side that the cutting board is close to the shovel board is equipped with the doctor-bar, and the doctor-bar is followed the cutting board and is rotated and can conflict with the shovel board top surface, still is equipped with on the mounting bracket and is used for ordering about cutting board pivoted second driving piece. This application has the effect that improves clearance foundation ditch reentrant corner residual soil efficiency.

Description

Civil engineering foundation pit excavating device and using method thereof

Technical Field

The application relates to the field of engineering construction equipment, in particular to a civil engineering foundation pit excavating device and a using method thereof.

Background

In the existing civil engineering construction, when the earth volume of excavation of a foundation pit is large, the foundation pit is excavated by adopting large excavating equipment such as an excavator. When the design depth of the foundation pit is excavated, because the precision of the action is controlled to be inconvenient for large machinery, and simultaneously, the original soil is excavated to avoid exceeding, the soil with a certain thickness is generally remained between the bottom and the side wall of the foundation pit, namely, the internal corner of the foundation pit, as shown in fig. 1. At this moment, the residual soil at the internal corner of the foundation pit is usually cleaned in an artificial excavation mode, the surfaces of the two sides of the internal corner of the foundation pit are trimmed, and when the extension length of the internal corner of the foundation pit is long, the labor amount for manually cleaning the residual soil is large, and the efficiency is low.

Disclosure of Invention

In order to improve the efficiency of clearing residual soil at the internal corner of a foundation pit, the civil engineering foundation pit excavating device and the using method thereof are provided.

In a first aspect, the civil engineering foundation pit excavating device provided by the application adopts the following technical scheme:

a civil engineering foundation pit excavating device comprises a movable carrier and an installation frame arranged on one side of the movable carrier, wherein a shovel plate is arranged on one side, away from the movable carrier, of the installation frame, the shovel plate is arranged on the installation frame in a sliding mode along the horizontal direction, and a first driving piece used for driving the shovel plate to do reciprocating motion is arranged on the installation frame; one side that the mounting bracket was kept away from to the shovel board rotates and is provided with the cutting board, and the rotation axis of cutting board is in the top of shovel board, and the rotation axis of cutting board sets up along the direction of sliding level of perpendicular to shovel board, and the length direction of cutting board is perpendicular with the rotation axis direction of self, and one side that the cutting board is close to the shovel board is equipped with the doctor-bar, and the doctor-bar is followed the cutting board and is rotated and can conflict with the shovel board top surface, still is equipped with on the mounting bracket and is used for ordering about cutting board pivoted second driving piece.

Through adopting above-mentioned technical scheme, after digging the partial incomplete soil of remaining reentrant corner of foundation ditch through machinery, the manual work is excavated earlier and is cleared up out one section space, and its width can supply shovel board and cutting plate embedding, orders about the position that the removal carrier removed adjustment shovel board and cutting plate, makes shovel board and cutting plate follow the direction of advancing just to the working face of manual work clearance play.

Operating personnel starts first driving piece and second driving piece in proper order earlier, rethread removes the carrier and drives the mounting bracket and move ahead along the extending direction of reentrant corner, make the shovel board pass through reciprocating motion earlier, the incision that has certain degree of depth is shoveled out to the bottom of the reentrant corner residual soil in the direction of moving ahead, then the cutting blade cuts the joint-cutting through rotating between with reentrant corner residual soil and the pit wall, the doctor-bar is followed the cutting blade and is rotated the residual soil that contacts the place ahead simultaneously and is scraped, the control carrier is at the uniform velocity and is gone ahead, the doctor-bar alright will move ahead down the reentrant corner residual soil on the way gradually, thereby promote the efficiency of clearing up foundation ditch reentrant corner residual soil, and because the cutting of shovel board and cutting plate, make the reentrant corner surface of having dug the residual soil can be more level and more smooth, constructor need not follow-up again, and then make constructor's intensity of labour greatly reduce.

In addition, the scraping blade scrapes partial residual soil which is contacted with the scraping blade in a rotating mode at each time under the cutting action of the shovel plate and the cutting plate, and the bottom and one side of the scraping blade are separated from the pit bottom and the pit wall to a certain degree, so that the resistance of the scraping blade when the residual soil is scraped can be reduced to a certain degree, and the process of cleaning the residual soil at the internal corner can be smoother.

Preferably, the mounting rack is vertically connected to the movable carrier in a sliding manner, and a third driving piece for driving the mounting rack to move is arranged on the movable carrier.

Through adopting above-mentioned technical scheme, when the removal carrier marchd the foundation ditch border position, order about the mounting bracket through the third driving piece and remove the head position that removes the carrier, can make the doctor-bar clear up out the reentrant corner residual soil of a section distance again, further reduce the work load that needs artifical excavation.

Preferably, the movable carrier is vertically and slidably connected with a connecting assembly, the mounting frame is mounted on the movable carrier through the connecting assembly, and the third driving piece is used for driving the connecting assembly to vertically move; the horizontal sliding connection of mounting bracket is on coupling assembling, and the direction of sliding of mounting bracket is parallel with the moving direction of shovel board on the mounting bracket, is equipped with the fourth driver that orders about the mounting bracket removal on the coupling assembling.

Through adopting above-mentioned technical scheme, the in-process that removes the carrier and march under unoperated state, accessible fourth driving piece rises coupling assembling and mounting bracket to make the shovel board break away from ground, reduce shovel board unnecessary wearing and tearing on the one hand, on the other hand conveniently removes the carrier and marchs.

Preferably, the cutting plates are arranged in a plurality of coaxial lines and are mutually crossed, the side, close to the shovel plate, of each cutting plate is also provided with a cutting sheet, and the cutting sheets and the scraping blades are respectively corresponding to one cutting plate and are arranged in a circumferentially crossed manner at intervals; the side edge of the section connected with the cutting plate extends in a direction parallel to the rotating track of the end part of the cutting plate, the plane parallel to the scraping blade is parallel to the length direction of the cutting plate, and the distance between one side wall of the section and the scraping blade, which are respectively far away from the rotating axis of the cutting plate, and the rotating axis of the cutting plate is the same.

Through adopting above-mentioned technical scheme, the area that the doctor-bar was contradicted with the anterior residual soil is littleer for the section comparison, and the section then cuts off the residual soil that the rotation was contradicted more easily and lower partial residual soil, and the doctor-bar is bigger because its side area towards the direction of rotation is bigger, scrapes the rear side to the direction of advancing to the shovel board with the residual soil that the section was clear down and is piled up on the shovel board more easily, and then reduces subsequent section pivoted resistance.

The section is alternately distributed on the cutting board of difference with the doctor-bar at interval, then can make and have certain interval between the action of sliced eager soil and doctor-bar scraping soil, and after the section downcuts preceding part residual soil earlier, the resistance can be less relatively when the doctor-bar rotates again, and after the section rotates and breaks away from the residual soil of piling up on the shovel board, the doctor-bar then scrapes more residual soil to the rear side of shovel board.

Preferably, the mounting frame is further provided with a spiral conveying assembly, the spiral conveying assembly comprises a pipe body arranged on the mounting frame, a rotating shaft which is rotatably connected in the pipe body and one end of the rotating shaft penetrates out of the pipe body, and a spiral blade arranged on the rotating shaft, the cutting plate is fixedly connected at the end, penetrating out of the pipe body, of the rotating shaft to realize rotation, the other end of the pipe body extends towards the direction far away from the cutting plate, and the second driving piece is used for driving the rotating shaft to rotate;

the side plate of the scraping piece far away from one side of the cutting plate is arranged on the mounting piece, the bottom side of the side plate is as high as the top surface of the shovel plate, a baffle is arranged on one side of the side plate far away from the advancing direction of the moving carrier, the baffle is positioned on one side of the side plate close to the cutting plate, the bottom end of the baffle extends to the top surface of the shovel plate, and the top end of the baffle extends to the top side of the rotating track of the end part of the cutting plate; one end of the pipe body close to the cutting plate is provided with a collecting opening with an upward opening, and the collecting opening is positioned on the inner side of the rotating track of the scraping blade. A baffle is arranged on one side of the side plate, which is far away from the advancing direction of the movable carrier, the baffle is positioned on one side of the side plate, which is close to the cutting plate, the bottom end of the baffle extends to the top surface of the shovel plate, and the top end of the baffle extends to the top side of the rotating track of the end part of the cutting plate; one end of the pipe body close to the cutting plate is provided with a collecting opening with an upward opening, and the collecting opening is positioned on the inner side of the rotating track of the scraping blade.

Through adopting above-mentioned technical scheme, enclose through curb plate and baffle and keep off the effect, the incomplete soil that section and doctor-bar scraped down piles up partly on the shovel board earlier, along with the continuous rotation of doctor-bar, the doctor-bar takes up the top to the collection mouth of body with the incomplete soil on the shovel board, fall into in the body from collecting the mouth again, receive helical blade pivoted effect afterwards, transmit the one side that the hole wall was kept away from to the removal carrier with the incomplete soil in the body, the piling up of incomplete soil on the shovel board has not only been reduced, do benefit to the rotation of cutting plate, the incomplete soil under the clearance simultaneously can pile up in the place of keeping away from the hole wall, constructor uses shovel native equipment such as fork truck can be more conveniently with reentrant corner incomplete soil clean up.

Preferably, the baffle is arranged in an arc shape, the circle center corresponding to the baffle falls on the axis of the rotating shaft, and one side of the scraping blade far away from the rotating shaft is abutted against the baffle when the scraping blade rotates to one side close to the baffle; one side of the scraping piece close to the rotating shaft is abutted against the outer side wall of the pipe body.

Through adopting above-mentioned technical scheme, the doctor-bar is at pivoted in-process up, and its both sides are contradicted with the outer wall and the baffle of body respectively, can increase the residual soil volume that the doctor-bar single rotation stroke can take up, and then can promote the speed of the residual soil of clearance piling up on the shovel board.

Preferably, the cutting plate is positioned on one side of the shovel plate far away from the mounting frame, and the distance between the end face of the cutting plate and the rotation axis of the cutting plate is greater than the vertical distance between the rotation axis of the cutting plate and the top surface of the shovel plate.

Through adopting above-mentioned technical scheme, at first make full use of the width of shovel board to the increase can clear up the width of reentrant corner residual soil, the kerf that the slab surely goes out secondly can extend to the shovel board and surely goes out notched below high position, makes the section rotate at every turn the reentrant corner residual soil of contradicting and can increase with the separation degree at the bottom of the pit and the pit wall, and then promotes the smooth degree that section and doctor-bar cleared up the reentrant corner residual soil.

Preferably, the top surface of shovel board is provided with and is used for with the butt board of section and doctor-bar butt, the vertical slip setting of butt board is equipped with the elastic component that is used for ordering about the butt board and shifts up on the shovel board.

Through adopting above-mentioned technical scheme, the shovel board passes through butt joint board and doctor-bar butt, when cliping harder materials such as stone between butt joint board and the doctor-bar, can temporarily increase the distance between doctor-bar and the butt joint board through the deformation of elastic component and pass through for the stone, and then reduce the probability that section or doctor-bar take place to warp.

On the other hand, the application also provides a using method of the civil foundation pit excavating device, which comprises the following steps:

s1, manually cleaning a certain distance at the internal corner of the foundation pit for embedding a shovel plate and a cutting plate, and controlling the advancing direction of the movable carrier to enable the shovel plate and the cutting plate to be opposite to the manually cleaned working surface;

s2, starting the first driving piece to drive the shovel plate to reciprocate, then starting the second driving piece to drive the cutting plate to rotate, and then starting the movable carrier to drive the mounting frame to move along the extension direction of the internal corner;

s3, the mounting frame is lifted through the third driving piece, so that the bottom of the shovel plate is separated from the ground of the pit bottom, and then the movable carrier is driven to bring the mounting frame away from the internal corner of the foundation pit.

Through adopting above-mentioned technical scheme, after the residual soil of surplus pit bottom reentrant corner part is excavated to the foundation ditch, constructor starts to move the carrier and advances along the extending direction of pit bottom one side reentrant corner, cuts out the incision with the bottom and one side of reentrant corner residual soil respectively through shovel board and cutting plate to the scraper blade will rotate the residual soil that contacts at every turn and clear up down, thereby reduces the work load of executing artifical excavation foundation ditch reentrant corner residual soil.

In summary, the present application includes at least one of the following beneficial technical effects:

through the arrangement of the movable carrier, the shovel plate, the cutting plate and the scraping blade, the residual soil at the internal corner of the foundation pit can be dug down in a manner of replacing a manual mode, the cleaning efficiency of the residual soil at the internal corner is improved, meanwhile, due to the cutting of the shovel plate and the cutting plate, the surface of the internal corner dug with the residual soil can be smoother, and the subsequent trimming is not needed by constructors, so that the labor intensity of the constructors is greatly reduced;

through the arrangement of the connecting piece, the third driving piece and the fourth driving piece, the scraping piece can move forward for a certain distance when the movable carrier moves to the edge position of the foundation pit, and the shovel plate can be lifted and separated from the ground under the condition that the movable carrier is not in the state of cleaning residual soil, so that unnecessary abrasion of the shovel plate is reduced, and the movable carrier is convenient to move;

through the arrangement of the slices and the scraping blades in a crossed and spaced mode, the slices can cut off the internal corner residues more easily, and the scraping blades are mainly used for scraping the cleaned residual soil to the rear side of the forward direction of the shovel plate;

through the setting of curb plate, baffle and screw feed subassembly, can pile up the residual soil under the clearance in the place of keeping away from the pithead, constructor uses shovel native equipment such as forklift can be more conveniently with reentrant corner residual soil clean up.

Drawings

FIG. 1 is a schematic diagram of soil remaining in the internal corner after excavation of a foundation pit;

fig. 2 is a schematic overall structure diagram of a civil foundation pit excavating device in the embodiment of the present application;

FIG. 3 is a schematic view showing the construction of the earth moving mechanism;

FIG. 4 is a schematic view of the excavator mechanism from a side adjacent to the mobile carrier;

FIG. 5 is a schematic cross-sectional view showing the construction of a blade;

FIG. 6 is a schematic view of the side of the mobile carrier away from the earthmoving mechanism.

Description of reference numerals: 1. moving the carrier; 11. a head portion; 12. a tail portion; 2. a soil digging mechanism; 21. a mounting frame; 211. a connecting rod; 212. a mounting member; 2121. a first mounting plate; 2122. a second mounting plate; 2123. a connecting bolt; 213. a first hydraulic cylinder; 2131. a connecting shaft; 214. a protective cover; 2141. a side plate; 2142. a baffle plate; 22. a connecting assembly; 221. a connecting plate; 222. mounting a rod; 223. a second hydraulic cylinder; 224. a third hydraulic cylinder; 23. a shovel plate; 231. a butt joint plate; 232. caulking grooves; 233. an elastic plate; 24. a scraping assembly; 241. cutting a plate; 242. slicing; 243. scraping a blade; 25. a screw conveying assembly; 251. a pipe body; 2511. a collection port; 2512. a soil outlet; 252. a rotating shaft; 253. a helical blade; 254. an electric motor.

Detailed Description

The present application is described in further detail below with reference to figures 2-6.

The embodiment of the application discloses civil engineering foundation ditch excavating gear.

Referring to fig. 2, the excavation device for the civil engineering foundation pit comprises a movable carrier 1 with a head part 11 and a tail part 12, the movable carrier 1 in the embodiment can be any vehicle body with a power source, an excavating mechanism 2 is arranged on one side of the movable carrier 1 parallel to the advancing direction of the movable carrier, after the foundation pit is excavated to the partial residual soil of the internal corner of the residual pit bottom, a constructor makes one side of the movable carrier 1, which is provided with the excavating mechanism 2, close to the pit wall, starts the movable carrier 1 to advance and move along the extending direction parallel to the internal corner of the pit wall on the side, and the excavating mechanism 2 follows the movement and excavates the residual soil of the internal corner.

Referring to fig. 2 and 3, the excavating mechanism 2 comprises a mounting frame 21 arranged on the movable carrier 1, the mounting frame 21 comprises a mounting part 212, the length direction of the mounting part 212 is parallel to the horizontal extending direction of one side of the movable carrier 1, two connecting rods 211 are connected between the mounting part 212 and the movable carrier 1, and the two connecting rods 211 are arranged at intervals along the length direction parallel to the mounting part 212.

Referring to fig. 4, the mounting member 212 includes a first mounting plate 2121 and a second mounting plate 2122 integrally formed, one long side of the first mounting plate 2121 and the second mounting plate 2122 is connected, a wide side of the first mounting plate 2121 extends in a horizontal direction, and a wide side of the second mounting plate 2122 extends in a vertical direction. A shovel plate 23 is arranged between the first mounting plate 2121 and the second mounting plate 2122, the length direction of the shovel plate 23 is parallel to the length direction of the mounting piece 212, the length of the shovel plate 23 is greater than that of the mounting piece 212, the width of the shovel plate 23 is greater than that of the first mounting plate 2121, and the side walls of the shovel plate 23 adjacent to the first mounting plate 2121 and the second mounting plate 2122 are respectively attached to each other.

Referring to fig. 4, the shovel 23 horizontally slides along a direction parallel to the length direction of the mounting member 212, the bottom of the shovel 23 is used for abutting against the bottom of the foundation pit, and one end of the shovel 23 close to the advancing direction of the mobile carrier 1 is provided with a blade edge. A plurality of connecting bolts 2123 are arranged on the first mounting plate 2121, the connecting bolts 2123 penetrate through the first mounting plate 2121 and are fixedly connected with the top surface of the shovel plate 23, and a waist-shaped groove for the sliding of the connecting bolts 2123 is formed in the first mounting plate 2121.

Referring to fig. 4, a first driving member for driving the shovel plate 23 to reciprocate is disposed on the second mounting plate 2122, in this embodiment, the first driving member is a first hydraulic cylinder 213, the first hydraulic cylinder 213 is fixed on a side wall of the second fixing plate far away from the shovel plate 23, a piston rod of the first hydraulic cylinder 213 is parallel to the length direction of the second mounting plate 2122, the piston rod of the first hydraulic cylinder 213 is fixedly connected to the shovel plate 23 through a connecting shaft 2131, and a waist-shaped groove for moving the connecting shaft 2131 is disposed on the second mounting plate 2122.

Referring to fig. 3, a soil scraping assembly 24 is rotatably disposed above the blade 23, the soil scraping assembly 24 includes a plurality of strip-shaped cutting plates 241 rotating around the same axis, the length direction of the cutting plates 241 is perpendicular to the rotation axis of the cutting plates 241, and two cutting plates 241 are taken as an example in this embodiment. The central axes of the two cutting plates 241 in the length direction are intersected and form a right angle, and the rotation axis of the cutting plate 241 is horizontally arranged and is perpendicular to the sliding direction of the shovel plate 23. The cutting plate 241 is used for cutting a slot between the soil residue at the internal corner and the pit wall, and the side edge of each cutting plate 241 facing to the rotating direction is provided with a blade edge.

Referring to FIG. 3, the axis of rotation of cutting blade 241 is located above blade 23, and cutting blade 241 is located on a side of blade 23 away from mounting member 212, with a gap between a side of cutting blade 241 adjacent mounting member 212 and a side of blade 23 away from mounting member 212. The distance between the end face of each end of the cutting plate 241 and the rotation axis thereof, that is, half of the length of the cutting plate 241 is longer than the perpendicular distance between the rotation axis of the cutting plate 241 and the top surface of the blade 23, so that the slit cut by the cutting plate 241 can extend to the height position below the cut of the blade 23.

Referring to fig. 3, a scraping blade 243 and a cut piece 242 are disposed on one side wall of the cutting plate 241 close to the blade 23, the scraping blade 243 and the cut piece 242 each correspond to one cutting plate 241, the scraping blade 243 and the corresponding cutting plate 241 are disposed in two pieces and are respectively located at an end of the cutting plate 241, the cut piece 242 is disposed in two pieces and is respectively located at two ends of the cutting plate 241 on the corresponding cutting plate 241, and the two scraping blades 243 and the cut piece 242 form a position relationship of being uniformly crossed and spaced along the circumferential direction.

Referring to fig. 3, two scraping blades 243 are arranged on the cutting plate 241 in radial symmetry with the rotation axis of the cutting plate 241, the cross section of the scraping blade 243 is rectangular, one wide side of the scraping blade 243 is fixedly connected to the cutting plate 241 by welding, the wide side of the scraping blade 243 fixedly connected with the cutting plate 241 extends in the length direction parallel to the cutting plate 241, the length direction of the scraping blade 243 is perpendicular to the side wall of the cutting plate 241, the distance between one side wall of the scraping blade 243 far away from the rotation axis of the cutting plate 241 and the rotation axis of the cutting plate 241 is the same as the perpendicular distance between the rotation axis of the cutting plate 241 and the top surface of the shovel plate 23, and when the scraping blade 243 rotates to be close to the shovel plate 23, one side of the scraping blade 243 far away from the rotation axis of the cutting plate 241 can be abutted against the top surface of the shovel plate 23.

Referring to fig. 3, the two cut sheets 242 are similarly arranged on the cutting plate 241 in radial symmetry with respect to the rotation axis of the cutting plate 241. Section 242 is arc-shaped, one side arc limit of section 242 passes through welded fastening and connects on cutting plate 241, the arc border that section 242 and cutting plate 241 are connected extends in a direction that is on a parallel with cutting plate 241 rotation orbit, the distance between a lateral wall that section 242 kept away from cutting plate 241 axis of rotation and cutting plate 241 axis of rotation, it is the same with the perpendicular distance between cutting plate 241 axis of rotation and shovel board 23 top surface, section 242 is when rotating and being close to shovel board 23, one side that section 242 kept away from cutting plate 241 axis of rotation can conflict with the top surface of shovel board 23 equally.

Shovel board 23 passes through the mounting bracket 21 and follows the removal carrier 1 and move ahead simultaneously, make shovel board 23 the incision of certain degree of depth of shovel in the reentrant corner residual soil bottom in front earlier, two blocks of cutting plates 241 rotate afterwards and cut out a lancing with reentrant corner residual soil near one side of pitted wall, the section 242 on the cutting plate 241 is followed the rotation and is downcut the residual soil of contact and take and fall to shovel board 23 on, and the scraper 243 on another cutting plate 241 removes the residual soil that partial the place ahead contacted of scraping, still when rotating the position of conflicting to shovel board 23, with on shovel board 23 on board 241 not scrape away and accumulational residual soil scrapes shovel board 23 rear side, reduce the whole pivoted resistance of cutting plate 241 to a certain extent.

It should be noted that, when the shovel 23 is at the end position of the extension stroke of the piston rod of the first hydraulic cylinder 213, the end portion of the shovel 23 with the blade edge extends out of the range of the vertical projection of the rotation track of the cutting plate 241, and the start sequence is controlled to make the shovel 23 cut the cut at the bottom of the reentrant corner residual soil.

Referring to fig. 3 and 5, the top surface of the shovel plate 23 is provided with a butt plate 231, the shovel plate 23 butts against the slice 242 and the scraping blade 243 through the butt plate 231, the top surface of the shovel plate 23 is provided with an embedded groove 232, the butt plate 231 vertically slides and is embedded and clamped in the embedded groove 232, and the bottom of the embedded groove 232 is provided with an elastic member, which is an arched elastic plate 233 in the embodiment. When a stone is sandwiched between the cut piece 242 or the wiper 243 and the abutment plate 231, the stone is passed through by the deformation of the elastic plate 233 to reduce the probability of the deformation of the cut piece 242 or the wiper 243.

Referring to fig. 3, 4 and 5, a set of screw conveyor assemblies 25 is further disposed on the mounting frame 21, the screw conveyor assemblies 25 include a tube 251 fixed between the two connecting rods 211, one end of the tube 251 is located inside the rotating track of the wiper 243 on the cutting plate 241, and the other end of the tube 251 penetrates through the moving carrier 1 from the bottom of the moving carrier 1 to the other side of the moving carrier 1 along the direction of the rotating axis of the cutting plate 241. A rotating shaft 252 is rotatably connected in the pipe body 251, a continuous helical blade 253 is fixedly connected to the rotating shaft 252, one end of the rotating shaft 252, which is close to the soil scraping assembly 24, penetrates through the pipe body 251 and is connected with the two cutting plates 241, the two cutting plates 241 are fixedly sleeved on the rotating shaft 252, and the rotating shaft 252 provides a rotating carrier for the two cutting plates 241. One end of the pipe body 251 close to the cutting plate 241 is provided with a collecting port 2511 on the side wall of the pipe body 251, the collecting port 2511 is formed in the upward direction, the collecting port 2511 is positioned in the projection of the rotating track of the scraping blade 243 on the pipe body 251, the other end of the pipe body 251 is provided with a soil outlet 2512, one end of the pipe body 251 provided with the soil outlet 2512 is provided with a second driving piece, the second driving piece is a motor 254 in the embodiment, the output shaft of the motor 254 is coaxially connected with the rotating shaft 252, and the motor 254 drives the two cutting plates 241 to rotate through the rotating shaft 252.

Referring to fig. 3, a protective cover 214 is further disposed on the mounting frame 21, a side plate 2141 fixed to the first mounting plate 2121 is disposed at a bottom side of the protective cover 214, a top surface of the abutting plate 231 on the shovel plate 23 is flush with a top surface of the first mounting plate 2121, the pipe 251 penetrates through the side plate 2141 and is fixedly connected to the side plate 2141, a baffle 2142 is fixedly connected to a side of the side plate 2141 facing away from a forward direction of the moving carrier 1, and the baffle 2142 is located at a side of the side plate 2141 close to the cutting plate 241.

Referring to fig. 3, the side of the slice 242 close to the rotating shaft 252 is the same as the distance from the axis of the rotating shaft 252 and the outer diameter of the tube 251, and the slice 242 always rotates along the outer wall of the tube 251 during the rotation. The distance between the concave side of the baffle 2142 and the axis of the rotating shaft 252 is the same as the radius of the rotating track of the wiper 243 at the side away from the rotating shaft 252, and when the wiper 243 rotates to the position facing the side of the baffle 2142 along with the cutting plate 241, the wiper 243 can abut against a concave side wall of the baffle 2142, and at the same time, a side wall of the cut piece 242 away from the rotating shaft 252 can also abut against the baffle 2142.

The cutting sheet 242 cleans the lower residual soil and is enclosed and blocked on the shovel plate 23 by the side plate 2141 and the baffle 2142, the scraping blade 243 can take part of the residual soil when rotating upwards, the scraping blade 243 can take the residual soil on the shovel plate 23 to the upper part of the collecting opening 2511 of the pipe body 251, the residual soil falls into the pipe body 251 from the collecting opening 2511, then the residual soil in the pipe body 251 is transferred to the side, far away from the pit wall, of the movable carrier 1 under the action of the rotation of the helical blade 253, and the residual soil dug at the internal corner can be accumulated at the place far away from the pit wall.

Referring to fig. 2, one side of the movable carrier 1 close to the mounting frame 21 is further provided with a connecting assembly 22, in this embodiment, the connecting assembly 22 includes a connecting plate 221, the connecting plate extends along the horizontal direction at the side of the movable carrier 1, two horizontal mounting rods 222 are fixed on the connecting plate 221, the mounting rods 222 extend along the length direction of the connecting plate 221, two connecting rods 211 of the mounting member 212 are vertically arranged, the top end of each connecting rod 211 is slidably sleeved on the two mounting rods 222, and the bottom end of each connecting rod 211 is fixedly connected to the second mounting plate 2122 of the mounting member 212.

Referring to fig. 2, a third driving member is mounted on the connecting plate 221, the third driving member is a second hydraulic cylinder 223 in this embodiment, a piston rod of the second hydraulic cylinder 223 is horizontally disposed, and one end of the piston rod of the second hydraulic cylinder 223 is fixedly connected to a top end of one connecting rod 211. When the mobile carrier 1 travels to the edge position of the foundation pit, the second hydraulic cylinder 223 pushes the mounting frame 21 to move a distance again towards the head 11 of the mobile carrier 1, so that the workload of a constructor for cleaning the residues at the edge position of the internal corner can be reduced.

Referring to fig. 2, the connecting plate 221 is vertically and slidably connected to the moving carrier 1, and a fourth driving member is installed on the moving carrier 1, in this embodiment, the fourth driving member is a third hydraulic cylinder 224, and a piston rod of the third hydraulic cylinder 224 is vertically arranged and fixedly connected to the connecting plate 221. When the movable carrier 1 is not in a moving process of cleaning the residual soil at the internal corner, the third hydraulic cylinder 224 lifts the connecting plate 221 together with the mounting frame 21, so that the bottom surface of the shovel plate 23 is separated from the ground, unnecessary abrasion of the shovel plate 23 is reduced, and the movable carrier 1 is convenient to move.

The implementation principle of the embodiment of the application is as follows: after the partial residual soil of the residual internal corner of the foundation pit is excavated in a mechanical excavation mode, a constructor starts the movable carrier 1 to drive the excavating mechanism 2 to move forward along the extending direction of the internal corner, and the residual soil of the internal corner collided is scraped off by continuously rotating the scraper 243 and the slice 242 in the excavating mechanism 2 while moving forward.

The cutting sheet 242 and the scraping blade 243 scrape the residual soil at the internal corner along with the rotation of the cutting plate 241, the cutting edge of the cutting plate 241 can cut a cutting seam between the residual soil and the pit wall, and meanwhile, the cutting blade 23 below shovels the cut between the bottom of the residual soil and the bottom of the pit through continuous reciprocating motion in the process of advancing along with the cutting blade, so that the surface of the cleaned new internal corner can be smoother finally.

The residual soil under the clearance of section 242 and doctor-bar 243, it piles up on shovel board 23 earlier to be kept off the effect by enclosing of protection casing 214, along with baffle 2142's continuous rotation, when changeing the residual soil of piling up on shovel board 23 at every turn, all take up body 251 with some and collect the top of mouth 2511 and fall into in the body 251, carry the other end that arrives body 251 to body 253 afterwards and discharge from out native mouth 2512, the realization is to the clearance of piling up the residual soil on shovel board 23, the reentrant corner residual soil that will dig down simultaneously piles up in the place of keeping away from the pit wall, convenient clearance is transported.

The embodiment of the application further discloses a using method of the civil foundation pit excavating device.

A using method of a civil engineering foundation pit excavating device is used for the civil engineering foundation pit excavating device and comprises the following steps:

s1, controlling the width of the residual soil at the internal corner after the mechanical excavation of the foundation pit to be close to the width of the shovel plate 23, then manually excavating the residual soil at the edge position of one end of the internal corner of the foundation pit for a certain distance, wherein the length of the residual soil can be embedded into the shovel plate 23 and the cutting plate 241, and then controlling the mobile carrier 1 to move and adjust the advancing direction and the positions of the shovel plate 23 and the cutting plate 241 so that the shovel plate 23 and the cutting plate 241 are opposite to the working surface of the residual soil part which is manually cleaned;

s2, sequentially starting the first hydraulic cylinder 213 and the motor 254, so that the shovel 23 firstly cuts a cut at the bottom of the residual soil at the internal corner in the advancing direction, then starting the mobile carrier 1 to advance along the extending direction of the internal corner, controlling the advancing direction of the mobile carrier 1 to reduce deviation, and controlling the mobile carrier 1 to move at a constant speed corresponding to the speed of cleaning the residual soil by the slice 242 and the scraper 243;

s3, when the mobile carrier 1 moves to the edge position of the other end of the internal corner of the foundation pit, starting the third hydraulic cylinder 224 to drive the mounting frame 21 to move towards the head 11 of the mobile carrier 1;

s4, starting the second hydraulic cylinder 223 to lift the connecting plate 221, enabling the bottom of the shovel plate 23 to be separated from the ground at the bottom of the foundation pit, then moving the mounting frame 21 to the tail portion 12 of the mobile carrier 1 again by using the third hydraulic cylinder 224, and then starting the mobile carrier 1 to bring the mounting frame 21 away from the internal corner of the foundation pit;

s5, the soil pile discharged from the soil outlet 2512 of the pipe body 251 is removed from the foundation pit.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, 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

1. The utility model provides a civil engineering foundation ditch excavating gear which characterized in that: the device comprises a movable carrier (1) and an installation frame (21) arranged on one side of the movable carrier (1), wherein a shovel plate (23) is arranged on one side, away from the movable carrier (1), of the installation frame (21), the shovel plate (23) is arranged on the installation frame (21) in a sliding mode along the horizontal direction, and a first driving piece used for driving the shovel plate (23) to do reciprocating motion is arranged on the installation frame (21); the top of shovel board (23) is rotated and is provided with cutting board (241), the direction of sliding level along perpendicular to shovel board (23) of the axis of rotation of cutting board (241) sets up, the length direction of cutting board (241) is perpendicular with the axis of rotation direction of self, one side that cutting board (241) are close to mounting bracket (21) is equipped with doctor-bar (243), doctor-bar (243) follow cutting board (241) and rotate and can conflict with shovel board (23) top surface, still be equipped with on mounting bracket (21) and be used for ordering about cutting board (241) pivoted second driving piece.

2. The excavation device for a civil foundation pit according to claim 1, wherein: the vertical sliding connection of mounting bracket (21) is on removing carrier (1), is equipped with the third driving piece that orders about mounting bracket (21) and remove on removing carrier (1).

3. A civil foundation pit excavation apparatus as claimed in claim 2, wherein: the movable carrier (1) is vertically and slidably connected with a connecting assembly (22), the mounting frame (21) is mounted on the movable carrier (1) through the connecting assembly (22), and the third driving piece is used for driving the connecting assembly (22) to vertically move; mounting bracket (21) horizontal sliding connection is on coupling assembling (22), and the glide direction of mounting bracket (21) is parallel with shovel board (23) the moving direction on mounting bracket (21), is equipped with the fourth driver that orders about mounting bracket (21) and remove on coupling assembling (22).

4. A civil foundation pit excavation apparatus as claimed in claim 3, wherein: the cutting plates (241) are coaxially arranged into a plurality of mutually crossed parts, one side, close to the shovel plate (23), of each cutting plate (241) is also provided with a cutting sheet (242), and the cutting sheets (242) and the scraping blades (243) are respectively corresponding to one cutting plate (241) and are arranged in a circumferentially crossed mode at intervals; the side edge of the cut sheet (242) connected with the cutting plate (241) extends in a direction parallel to the rotating track of the end part of the cutting plate (241), the plane parallel with the scraping blade (243) is parallel to the length direction of the cutting plate (241), and the distances between one side wall of the cut sheet (242) and one side wall of the scraping blade (243), which are far away from the rotating axis of the cutting plate (241), and the rotating axis of the cutting plate (241) are the same.

5. A civil foundation pit excavation apparatus as claimed in claim 4, wherein: the mounting frame (21) is further provided with a spiral conveying assembly (25), the spiral conveying assembly (25) comprises a pipe body (251) arranged on the mounting frame (21), a rotating shaft (252) which is rotatably connected in the pipe body (251) and one end of which penetrates out of the pipe body (251), and a spiral blade (253) arranged on the rotating shaft (252), the cutting plate (241) is fixedly connected at one end of the rotating shaft (252) which penetrates out of the pipe body (251) to rotate, the other end of the pipe body (251) extends towards the direction far away from the cutting plate (241), and the second driving piece is used for driving the rotating shaft (252) to rotate;

the side plate (2141) of the scraping blade (243) far away from one side of the cutting plate (241) is arranged on the mounting piece (212), the height of the bottom side of the side plate (2141) is the same as that of the top surface of the shovel plate (23), a baffle (2142) is arranged on one side of the side plate (2141) far away from the advancing direction of the movable carrier (1), the baffle (2142) is positioned on one side of the side plate (2141) close to the cutting plate (241), the bottom end of the baffle (2142) extends to the top surface of the shovel plate (23), and the top end of the baffle (2142) extends to the top side of the rotating track of one side of the scraping blade (243) far away from the rotating shaft (252); one end of the pipe body (251) close to the cutting plate (241) is provided with a collecting opening (2511) with an upward opening, and the collecting opening (2511) is positioned on the inner side of the rotating track of the scraping blade (243).

6. A civil foundation pit excavation apparatus as claimed in claim 5, wherein: the baffle (2142) is arranged in an arc shape, the circle center corresponding to the baffle (2142) falls on the axis of the rotating shaft (252), and one side of the scraper (243) far away from the rotating shaft (252) can be abutted against the baffle (2142) in the rotating process; one side of the scraping blade (243) close to the rotating shaft (252) is abutted against the outer side wall of the tube body (251).

7. A civil foundation pit excavation apparatus as claimed in claim 4, wherein: the cutting plate (241) is positioned on one side, away from the mounting frame (21), of the shovel plate (23), and the distance between the end face of the cutting plate (241) and the rotation axis of the cutting plate is larger than the vertical distance between the rotation axis of the cutting plate (241) and the top surface of the shovel plate (23).

8. A civil foundation pit excavation apparatus as claimed in claim 7, wherein: the top surface of shovel board (23) is provided with butt plate (231) that are used for with section (242) and doctor-bar (243) butt, and butt plate (231) vertical slip sets up, is equipped with the elastic component that is used for driving butt plate (231) to shift up on shovel board (23).

9. Use of a device according to any one of claims 2 to 8 for excavating a foundation pit, wherein: the method comprises the following steps:

s1, manually cleaning a certain distance at the internal corner of the foundation pit for embedding the shoveling plate (23) and the cutting plate (241), and controlling the advancing direction of the movable carrier (1) to ensure that the shoveling plate (23) and the cutting plate (241) are opposite to the manually cleaned working surface;

s2, starting the first driving piece to drive the shovel plate (23) to reciprocate, then starting the second driving piece to drive the cutting plate (241) to rotate, and then starting the movable carrier (1) to drive the mounting rack (21) to move along the extension direction of the internal corner;

s3, the mounting frame (21) is lifted through the third driving piece, the bottom of the shovel plate (23) is separated from the ground of the pit bottom, and then the movable carrier (1) is driven to bring the mounting frame (21) away from the internal corner of the foundation pit.