CN112144536A

CN112144536A - Double-trapezoid earthwork excavating device and method

Info

Publication number: CN112144536A
Application number: CN202010980731.2A
Authority: CN
Inventors: 卫书满; 周复明; 卫书贵; 殷程; 袁峥
Original assignee: China Gezhouba Group Mechanical and Electrical Construction Co Ltd
Current assignee: China Gezhouba Group Mechanical and Electrical Construction Co Ltd
Priority date: 2020-09-17
Filing date: 2020-09-17
Publication date: 2020-12-29
Anticipated expiration: 2040-09-17
Also published as: CN112144536B

Abstract

A rotary cutting mechanism and a slope cutting mechanism are arranged above the front end of an open slot of a soil collecting hopper, a slope cutting knife is positioned behind the rotary knife, a soil inlet of a soil discharging mechanism extends into the soil collecting hopper, a soil discharging pipe extends out of the soil collecting hopper, a cross universal coupling of the rotary cutting mechanism transmits torque to drive the rotary knife to cut slope earthwork in an inclined linear mode, a cutting motor of the slope cutting mechanism drives the slope cutting knife to cut the slope earthwork in an inclined linear mode, the soil collecting hopper collects soil after cutting, and the soil is discharged out of a groove through the soil discharging mechanism. The invention overcomes the problems that earthwork is easy to collapse into a foundation groove when the pressure pipeline foundation groove side slope of the raw water power station is excavated, the excavator needs to be adopted again for soil discharging operation, the operation period is long, and the efficiency is low.

Description

Double-trapezoid earthwork excavating device and method

Technical Field

The invention belongs to the technical field of basic treatment, and relates to a double-trapezoid earthwork excavating device and method.

Background

In the hydropower station construction process, involve various foundation excavations, wherein involve the foundation ditch groove excavation of a double trapezoid structure, this double trapezoid structure includes trapezoidal ditch groove of first floor and the trapezoidal ditch groove of second floor, the notch width of ditch groove is greater than the tank bottom width, the width of first floor is greater than the width on second floor, adopt excavating equipment to carry out construction work, the problem that meets in the excavation process at present is, in the slot side slope excavation process, the side slope excavation precision is low, the side slope earthwork falls in the ditch inslot easily, need carry out the dumping operation once more after the excavation, the operation period is long, the inefficiency.

Disclosure of Invention

The invention aims to solve the technical problem of providing a double-trapezoid earthwork excavating device and a double-trapezoid earthwork excavating method, which are simple in structure, wherein a rotary cutting mechanism and a slope cutting mechanism are arranged above the front end of an open slot of a soil collecting hopper, a slope cutting knife is positioned behind the rotary knife, a soil inlet of the soil discharging mechanism is deep into the soil collecting hopper, a soil discharging pipe extends out of the soil collecting hopper, a cross universal coupling of the rotary cutting mechanism transmits torque to drive the rotary knife to incline and linearly cut slope earthwork, a cutting motor of the slope cutting mechanism drives the slope cutting knife to incline and linearly cut the slope earthwork, the soil collecting hopper collects cut soil, the soil discharging mechanism discharges the soil out of a groove, the groove slope earthwork is difficult to fall after excavation, the soil is discharged while the operation is carried out, the slope excavating precision is high, the operation time is short, the efficiency is high, and the operation is simple and.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a double-trapezoid earthwork excavating device and a method thereof comprise an earthwork collecting hopper, a rotary cutting mechanism, a slope surface cutting mechanism and a soil discharging mechanism; the slope cutting mechanism and the rotary cutting mechanism are connected with an inclined troweling plate of the soil collection hopper, the rotary cutting mechanism is positioned in front of the slope cutting mechanism, a soil inlet of the soil discharging mechanism extends into the soil collection hopper, and a soil discharging pipe extends out of the soil collection hopper; the rotary cutter of the rotary cutting mechanism is positioned above the front end of the open slot of the soil collecting hopper, and the slope cutter of the slope cutting mechanism is positioned in the open slot of the soil collecting hopper and on the same horizontal plane with the open slot.

The soil collecting hopper comprises an inclined trowelling plate connected with the horizontal trowelling plate and a soil retaining plate connected with the horizontal trowelling plate and the inclined trowelling plate.

The inclined troweling plate is an inclined flat plate, and an open slot is formed in one end of the inclined troweling plate.

One end of the horizontal troweling plate close to the open slot is of a triangular structure.

The rotary cutting mechanism comprises a support plate matched with two ends of the rotary shaft, a plurality of rotary knives positioned on the rotary shaft and a cross universal coupling connected with one end of the rotary shaft; the support plate is positioned at two sides of the open slot and connected with the open slot.

The rotating shaft is of an inclined structure, and the cross universal coupling is connected with the lower end.

The slope cutting mechanism comprises a cutting motor connected with the support and a slope cutting knife connected with an output shaft of the cutting motor.

The support is the cell wall that the opening is downward, is connected with the open slot both sides, and domatic cutting knife is the slope form and hangs in the support below.

The soil discharging mechanism comprises a soil conveying motor connected with one end of the soil conveying pipe and a spiral sheet located in the soil conveying pipe and connected with an output shaft of the soil conveying motor, the soil conveying pipe located at one end of the soil conveying motor is provided with a soil discharging pipe, and the other end of the soil conveying pipe is provided with a soil inlet.

The output shaft of the soil conveying motor is matched with the sealing plates at the two ends of the soil conveying pipe; the pipe orifice of the waste discharge pipe faces downwards, and the opening of the waste inlet faces upwards.

The excavating method of the double-trapezoid earthwork excavating device comprises the following steps:

s1, excavating the first layer, namely excavating the first layer of foundation pit by adopting an excavator, wherein the bottom of the foundation pit is flat; excavating a first layer of initial side slope at the initial point and the final point of the foundation pit respectively, and stopping when the length of the initial side slope can accommodate the soil collecting hopper;

s2, mounting, namely placing the excavating device in a foundation pit, contacting an inclined trowelling plate of the soil collecting bucket with the first-layer initial slope, contacting a horizontal trowelling plate with the bottom of the first-layer foundation pit, and enabling an open slot to face the other end of the foundation pit; the cross universal coupling is connected with a wheel shaft of the excavator; the soil blocking plate is connected with a frame of the excavator; at the moment, the excavating device is positioned at one side of the excavator, and the opening groove is consistent with the advancing direction of the excavator; the cutting motor and the soil conveying motor are electrically connected with an electric control system of the excavator;

s3, performing side slope tunneling, driving a rotary cutter to cut the first layer of foundation pit side slope by an excavator advancing belt cross universal coupling, and advancing a soil collection bucket along with the excavator; meanwhile, the power supply of the cutting motor is closed, and the slope surface cutting knife rotates to cut the first layer of foundation pit side slope along the advancing direction of the inclined troweling plate;

s4, leveling, namely, when the soil collection bucket advances, leveling the first layer of foundation pit side slope by the inclined leveling plate, and leveling the bottom of the first layer of foundation pit by the horizontal leveling plate;

s5, collecting soil, wherein when the soil collection bucket moves forward, the first layer of foundation pit side slope is cut into a plurality of soil blocks by the rotary cutting mechanism and the slope cutting mechanism, the soil blocks collapse to the bottom of the first layer of foundation pit under the action of self weight and the pushing of the cutting motor shaft when the cutting motor shaft moves forward, and the soil blocks are pushed to move backwards to be blocked in the soil collection bucket by the soil blocking plate when the horizontal trowelling plate moves forward;

s6, dumping, wherein when the soil blocks in the soil collecting hopper are buried in the soil inlet of the soil dumping mechanism, the power supply of the soil conveying motor is closed; the soil conveying motor drives the spiral piece to rotate, and soil blocks move along the soil conveying pipe from the soil inlet and are discharged to the ground layer from the soil discharge pipe;

s7, when the excavator advances to the end point of the first floor, the excavator turns around at the position, and the inclined troweling plate of the soil collection bucket is in contact with the end point slope on the other side of the first floor; repeating S3-S6;

s8, excavating the second layer, and repeatedly excavating the foundation pit of the second layer by the aid of the S1; and repeating S2-S7 to complete the slope tunneling, the leveling and the soil discharging of the second layer.

A double-trapezoid earthwork excavating device and a method thereof comprise an earthwork collecting hopper, a rotary cutting mechanism, a slope surface cutting mechanism and a soil discharging mechanism; the slope cutting mechanism and the rotary cutting mechanism are connected with an inclined troweling plate of the soil collection hopper, the rotary cutting mechanism is positioned in front of the slope cutting mechanism, a soil inlet of the soil discharging mechanism extends into the soil collection hopper, and a soil discharging pipe extends out of the soil collection hopper; the rotary cutter of the rotary cutting mechanism is positioned above the front end of the open slot of the soil collecting hopper, and the slope cutter of the slope cutting mechanism is positioned in the open slot of the soil collecting hopper and on the same horizontal plane with the open slot. Simple structure, through set up rotatory cutting mechanism and domatic cutting mechanism above the open slot front end of receipts soil fill, domatic cutting knife is located behind the rotary cutter, the soil inlet of dumping mechanism gos deep into in the receipts soil fill, the soil discharging pipe stretches out outside the receipts soil fill, the cross universal coupling transmission moment of torsion drive rotary cutter slope linear cutting side slope earthwork through rotatory cutting mechanism, cutting motor drive domatic cutting knife slope linear cutting side slope earthwork through domatic cutting mechanism, collect the soil body after the cutting through receiving the soil fill, discharge the soil body outside the slot through the dumping mechanism, slot side slope earthwork is difficult for collapsing after the excavation, the dumping in the operation, side slope excavation precision is high, the operating time is short, high efficiency, easy operation is convenient.

In a preferred scheme, the soil collecting hopper comprises an inclined troweling plate connected with a horizontal troweling plate and a soil retaining plate connected with the horizontal troweling plate and the inclined troweling plate. Simple structure, during the use, drive when excavating equipment advances and receive the native fill and move forward, when receiving native fill and moving forward, the horizontal trowelling plate is smeared the horizontal soil body in the slot, and the slope trowelling plate inclines to the slot side slope and is smeared, and meanwhile, collects the soil body of excavation when receiving native fill and advancing, the slot earthwork is difficult for collapsing during the excavation, and the soil is arranged simultaneously, and is efficient, and the activity duration is short.

In a preferred scheme, the inclined troweling plate is an inclined flat plate, and an open groove is formed in one end of the inclined troweling plate. Simple structure, during the use, the rotatory cutting mechanism that is located the open slot front end carries out inclined plane straight line cutting to basic slot side slope earthwork slope straight line cutting, and the domatic cutting mechanism that is located the open slot carries out inclined plane straight line cutting to the earthwork that has cut, and the cutting plane and the slope trowelling plate of inclined plane straight line cutting are the same face, when receiving the soil fill and advancing, are trowelled by the slope trowelling plate, and the side slope atress compresses tightly when floating, is difficult for collapsing.

In a preferred scheme, one end of the horizontal troweling plate, which is close to the open slot, is of a triangular structure. Simple structure, during the use, after rotatory cutting mechanism and domatic cutting mechanism cut the side slope, decompose into a plurality of clods with the side slope soil body, fall the ditch inslot after the clod collapses, promote the soil body backward movement by the level trowelling plate and be blockked by the fender apron when receiving the soil fill and go forward, and the level trowelling plate is trowelled basic ditch groove bottom simultaneously, and the level trowelling plate resistance that the front end is the triangle-shaped structure is little.

In a preferred scheme, the rotary cutting mechanism comprises a support plate matched with two ends of a rotary shaft, a plurality of rotary knives positioned on the rotary shaft and a cross universal coupling connected with one end of the rotary shaft; the support plate is positioned at two sides of the open slot and connected with the open slot. Simple structure, during the use, cross universal coupling gives the rotation axis with the moment of torsion transmission, and the rotation axis drives the rotatory domatic earthwork of cutting of revolving knife.

In a preferred scheme, the rotating shaft is of an inclined structure, and the universal joint cross is connected with one lower end. The universal joint has a simple structure, when the universal joint is used, the cross universal coupling is connected with the wheel shaft to form an included angle with the rotating shaft, and the torque can be transmitted to the rotating shaft even if the wheel jolts during traveling.

In a preferred scheme, the slope cutting mechanism comprises a cutting motor connected with the bracket and a slope cutting knife connected with an output shaft of the cutting motor. Simple structure, during the use, the domatic cutting knife of cutting motor drive is rotatory, and domatic cutting knife cuts once more to the earthwork that rotation cutting mechanism has cut, makes the side slope earthwork decompose into a plurality of clods.

In a preferred scheme, the bracket is a groove wall with a downward opening and is connected with two sides of the open groove, and the slope cutting knife is obliquely suspended below the bracket. Simple structure, during the use, the support supports the cutting motor, and the domatic cutting knife of being connected with cutting motor output shaft is in the slope state of dangling, does not take place to interfere with the rotary cutter of rotatory cutting mechanism when making domatic cutting knife rotatory.

In a preferred scheme, the soil discharging mechanism comprises a soil conveying motor connected with one end of a soil conveying pipe and a spiral piece positioned in the soil conveying pipe and connected with an output shaft of the soil conveying motor, the soil conveying pipe positioned at one end of the soil conveying motor is provided with the soil discharging pipe, and the other end of the soil conveying pipe is provided with a soil inlet. The soil conveying motor is used for driving the spiral piece to rotate to convey soil upwards along the soil conveying pipe to the soil discharging pipe to be discharged.

In a preferred scheme, an output shaft of the soil transporting motor is matched with sealing plates at two ends of the soil transporting pipe; the pipe orifice of the waste discharge pipe faces downwards, and the opening of the waste inlet faces upwards. Simple structure, during the use, the opening of advancing soil mouthful is buried by the soil body up, and in the helical blade got into the soil conveying pipe when rotatory, the soil body was carried to soil conveying pipe upper end and is discharged from the soil discharging pipe that the opening is down, and the discharged soil body falls outside the basic slot, discharges the soil body when making the slot side slope excavation.

In a preferred embodiment, the method of excavating a double trapezoidal earth excavation apparatus as described above, comprises the steps of:

s8, excavating the second layer, and repeatedly excavating the foundation pit of the second layer by the aid of the S1; and repeating S2-S7 to complete the slope tunneling, the leveling and the soil discharging of the second layer. The method has the advantages of high slope excavation precision, short operation period and high efficiency.

A double-trapezoid earthwork excavating device and a double-trapezoid earthwork excavating method comprise a soil collecting hopper, a rotary cutting mechanism, a slope cutting mechanism and a soil discharging mechanism, wherein the rotary cutting mechanism and the slope cutting mechanism are arranged above the front end of an open slot of the soil collecting hopper, a slope cutting knife is positioned behind the rotary knife, a soil inlet of the soil discharging mechanism is deep into the soil collecting hopper, a soil discharging pipe extends out of the soil collecting hopper, the rotary knife is driven to obliquely and linearly cut slope earthwork through a cross universal coupling of the rotary cutting mechanism to transmit torque, a slope cutting knife inclined plane is driven to linearly cut the slope earthwork through a cutting motor of the slope cutting mechanism, cut soil is collected through the soil collecting hopper, and the soil is discharged out of a groove through the soil discharging mechanism. The invention overcomes the problems that earthwork is easy to collapse into a foundation groove when the groove side slope of the pressure pipeline foundation of the raw water power station is excavated, the excavator is required to be adopted again for soil discharging operation, the side slope excavation precision is high, the operation working period is long, and the efficiency is low.

Drawings

The invention is further illustrated by the following examples in conjunction with the accompanying drawings:

fig. 1 is a schematic structural view of a foundation earth excavation section of the present invention.

FIG. 2 is a schematic view of the soil receiving hopper of the present invention positioned in a trench of a foundation.

Fig. 3 is a schematic structural diagram of the present invention.

Fig. 4 is a front view of fig. 3.

Fig. 5 is a left side view of fig. 4.

Fig. 6 is a top view of fig. 4.

3 fig. 3 7 3 is 3 a 3 schematic 3 cross 3- 3 sectional 3 view 3 taken 3 at 3 a 3- 3 a 3 of 3 fig. 3 6 3. 3

FIG. 8 is a schematic structural view of the soil collecting hopper of the present invention.

Fig. 9 is a top view of fig. 8.

In the figure: the soil collection device comprises a soil collection hopper 1, a horizontal trowelling plate 11, an inclined trowelling plate 12, a soil retaining plate 13, an open slot 14, a rotary cutting mechanism 2, a rotary shaft 21, a support plate 22, a rotary knife 23, a cross universal coupling 24, a slope cutting mechanism 3, a support 31, a cutting motor 32, a slope cutting knife 33, a soil discharging mechanism 4, a soil conveying pipe 41, a soil conveying motor 42, a spiral piece 43, a soil discharging pipe 44 and a soil inlet 45.

Detailed Description

As shown in fig. 1 to 9, a double-trapezoid earthwork excavating device and method comprises a soil collecting hopper 1, a rotary cutting mechanism 2, a slope surface cutting mechanism 3 and a soil discharging mechanism 4; the slope surface cutting mechanism 3 and the rotary cutting mechanism 2 are connected with the inclined troweling plate 12 of the soil collection hopper 1, the rotary cutting mechanism 2 is positioned in front of the slope surface cutting mechanism 3, a soil inlet 45 of the soil discharging mechanism 4 extends into the soil collection hopper 1, and a soil discharging pipe 44 extends out of the soil collection hopper 1; the rotary cutter 23 of the rotary cutting mechanism 2 is positioned above the front end of the open slot 14 of the soil collecting hopper 1, and the slope cutting knife 33 of the slope cutting mechanism 3 is positioned in the open slot 14 of the soil collecting hopper 1 and is positioned on the same horizontal plane with the open slot. Simple structure, through set up rotatory cutting mechanism 2 and domatic cutting mechanism 3 above the open slot 14 front end of receipts soil fill 1, domatic cutting knife 33 is located behind rotary knife 23, soil inlet 45 of dumping mechanism 4 deepens into receipts soil fill 1, the pipe for dumping 44 stretches out outside receipts soil fill 1, through the cross universal coupling 24 transmission torque drive rotary knife 23 slope straight line cutting side slope earthwork of rotatory cutting mechanism 2, cutting motor 32 drive domatic cutting knife 33 inclined plane straight line cutting side slope earthwork through domatic cutting mechanism 3, collect the soil body after the cutting through receiving soil fill 1, discharge the soil body outside the slot through dumping mechanism 4, the slot side slope earthwork is difficult for collapsing after the excavation, the dumping in the operation, the side slope excavation precision is high, the activity duration is short, high efficiency, easy operation is convenient.

In a preferred scheme, the soil collecting hopper 1 comprises an inclined trowel plate 12 connected with a horizontal trowel plate 11, and a soil retaining plate 13 connected with the horizontal trowel plate 11 and the inclined trowel plate 12. Simple structure, during the use, drive receipts soil fill 1 and move forward when excavating equipment gos forward, when receiving soil fill 1 and move forward, horizontal trowelling plate 11 screeds the horizontal soil body in the slot, and slope trowelling plate 12 inclines and screeds the slot side slope, and meanwhile, receives the soil body of collecting the excavation when soil fill 1 gos forward, and the slot earthwork is difficult for collapsing during the excavation, and the soil is arranged simultaneously, and is efficient, and the activity duration is short.

Preferably, the inclined trowel 12 is in line with the slope of the base trench design and the horizontal trowel 11 is in line with the levelness of the base trench design.

Preferably, the retaining plate 13 is fixedly connected to the excavating equipment in the trench during installation so that the soil collecting bucket 1 advances with the excavating equipment.

In a preferred scheme, the inclined troweling plate 12 is an inclined flat plate, and an open groove 14 is formed at one end. Simple structure, during the use, the slope straight line cutting is carried out to basic slot side slope earthwork to the rotatory cutting mechanism 2 that is located open slot 14 front end, and domatic cutting mechanism 3 that is located open slot 14 carries out the slope straight line cutting to the earthwork that has cut, and the cutting plane of slope straight line cutting is with slope trowelling plate 12 is the same face, when receiving soil fill 1 and advancing, is screeded by slope trowelling plate 12, and the side slope atress compresses tightly when screeding, is difficult for collapsing.

In a preferred scheme, one end of the horizontal troweling plate 11 close to the open slot 14 is in a triangular structure. Simple structure, during the use, after rotatory cutting mechanism 2 and domatic cutting mechanism 3 cut the side slope, decompose into a plurality of clods with the side slope soil body, fall the ditch inslot after the clod, receive soil fill 1 to go forward in promote the soil body backward movement by horizontal trowelling plate 11 and be blockked by fender apron 13, and horizontal trowelling plate 11 is trowelled basic ditch groove bottom simultaneously, and the front end is that the horizontal trowelling plate 11 resistance of triangle-shaped structure is little.

In a preferred scheme, the rotary cutting mechanism 2 comprises a support plate 22 matched with two ends of a rotating shaft 21, a plurality of rotary knives 23 positioned on the rotating shaft 21, and a cross universal coupling 24 connected with one end of the rotating shaft 21; the support plate 22 is connected to the open slot 14 on both sides thereof. Simple structure, during the use, cross universal joint 24 transmits the moment of torsion to rotation axis 21, and rotation axis 21 drives rotatory sword 23 rotation cutting domatic earthwork.

Preferably, the universal joint cross 24 is connected to the end of the wheel shaft of the excavating equipment, and when the wheel rolls, the universal joint cross 24 is driven to rotate to transmit the torque to the rotating shaft 21.

Preferably, the rotary knife 23 is a disc-shaped cutting knife having a cutting edge perpendicular to the inclined trowel plate 12.

In a preferred embodiment, the rotating shaft 21 is an inclined structure, and the universal joint cross 24 is connected to a lower end thereof. The structure is simple, when in use, the cross universal coupling 24 and the wheel shaft are connected to form an included angle with the rotating shaft 21, and the torque can be transmitted to the rotating shaft 21 even if the wheel bumps during running.

Preferably, the inclination of the rotation axis 21 coincides with the inclination of the inclined trowel plate 12.

In a preferred scheme, the slope cutting mechanism 3 comprises a cutting motor 32 connected with the bracket 31 and a slope cutting knife 33 connected with an output shaft of the cutting motor 32. Simple structure, during the use, cutting motor 32 drive domatic cutting knife 33 is rotatory, and domatic cutting knife 33 cuts once more to the earthwork that rotation cutting mechanism 2 has cut, makes the side slope earthwork decompose into a plurality of clods.

Preferably, the cutting surface of the ramping cutter 33 is perpendicular to the cutting surface of the rotary cutting mechanism 2.

Preferably, the dome cutter 33 is a disc cutter.

Preferably, the power supply for the cutting motor 32 is introduced from the power supply system of the excavating equipment.

In a preferred scheme, the bracket 31 is a groove wall with a downward opening, and is connected with two sides of the open groove 14, and the slope cutting knife 33 is obliquely suspended below the bracket 31. Simple structure, during the use, support 31 supports cutting motor 32, and the domatic cutting knife 33 with cutting motor 32 output shaft is in the slope state of dangling, does not take place to interfere with the rotary cutter 23 of rotatory cutting mechanism 2 when making domatic cutting knife 33 rotatory.

In a preferred scheme, the soil discharging mechanism 4 comprises a soil conveying motor 42 connected with one end of a soil conveying pipe 41, and a spiral piece 43 positioned in the soil conveying pipe 41 and connected with an output shaft of the soil conveying motor 42, wherein a soil discharging pipe 44 is arranged on the soil conveying pipe 41 positioned at one end of the soil conveying motor 42, and a soil inlet 45 is arranged at the other end of the soil conveying pipe 41. The soil body after slope cutting gradually collapses into the soil collecting hopper 1 during use, the soil inlet 45 is buried by the soil body, and the soil conveying motor 42 drives the spiral sheet 43 to rotate to convey the soil body upwards along the soil conveying pipe 41 to the soil discharging pipe 44 to be discharged.

In a preferred scheme, an output shaft of the soil transporting motor 42 is matched with sealing plates at two ends of the soil transporting pipe 41; the opening of the waste discharge pipe 44 faces downward, and the opening of the waste inlet 45 faces upward. Simple structure, during the use, when advancing soil inlet 45's opening upwards by soil body buries, during helical fin 43 rotatory entering soil conveying pipe 41, the soil body is carried to soil conveying pipe 41 upper end and is discharged from opening exhaust pipe 44 down, and the discharged soil body falls outside the basic slot, discharges the soil body when making the slot side slope excavation.

s1, excavating the first layer, namely excavating the first layer of foundation pit by adopting an excavator, wherein the bottom of the foundation pit is flat; excavating a first layer of initial side slope at the initial point and the final point of the foundation pit respectively, and stopping when the length of the initial side slope can accommodate the soil collecting hopper 1;

s2, mounting, namely placing the excavating device in a foundation pit, contacting the inclined trowelling plate 12 of the soil collecting bucket 1 with the first-layer initial slope, contacting the horizontal trowelling plate 11 with the bottom of the first-layer foundation pit, and enabling the open groove 14 to face the other end of the foundation pit; the cross universal coupling 24 is connected with a wheel shaft of the excavator; the soil blocking plate 13 is connected with a frame of the excavator; at the moment, the excavating device is positioned at one side of the excavator, and the opening groove 14 is consistent with the advancing direction of the excavator; the cutting motor 32 and the soil conveying motor 42 are electrically connected with an electric control system of the excavator;

s3, performing side slope tunneling, driving the rotary cutter 23 to cut the first layer of foundation pit side slope by the excavator advancing belt cross universal coupling 24, and advancing the soil collecting bucket 1 along with the excavator; meanwhile, the power supply of the cutting motor 32 is closed, and the slope cutter 33 rotates to cut the first layer of foundation pit slope along the advancing direction of the inclined troweling plate 12;

s4, leveling, wherein when the soil collecting bucket 1 advances, the inclined leveling plate 12 levels the first layer of foundation pit side slope, and the horizontal leveling plate 11 levels the bottom of the first layer of foundation pit;

s5, collecting soil, wherein when the soil collection bucket 1 moves forward, the first layer of foundation pit side slope is cut into a plurality of soil blocks by the rotary cutting mechanism 2 and the slope cutting mechanism 3, the soil blocks collapse to the bottom of the first layer of foundation pit under the action of dead weight and the pushing of the cutting motor 32 when the shaft body moves forward, and the soil blocks are pushed to move backwards to be blocked in the soil collection bucket 1 by the retaining plate 13 when the horizontal troweling plate 11 moves forward;

s6, dumping soil, and closing the power supply of the soil conveying motor 42 when the soil blocks in the soil collecting hopper 1 are buried in the soil inlet 45 of the soil discharging mechanism 4; the soil conveying motor 42 drives the spiral piece 43 to rotate, and soil blocks move along the soil conveying pipe 41 from the soil inlet 45 and are discharged from the soil discharging pipe 44 to the ground layer;

s7, when the excavator advances to the end point of the first floor, the excavator turns around at the position, and the inclined troweling plate 12 of the soil collection bucket 1 is in contact with the end point slope on the other side of the first floor; repeating S3-S6;

When the double-trapezoid earthwork excavating device and the method are installed and used, the rotary cutting mechanism 2 and the slope cutting mechanism 3 are arranged above the front end of the open slot 14 of the soil collecting hopper 1, the slope cutting knife 33 is positioned behind the rotary knife 23, the soil inlet 45 of the soil discharging mechanism 4 is deep into the soil collecting hopper 1, the soil discharging pipe 44 extends out of the soil collecting hopper 1, the cross universal coupling 24 of the rotary cutting mechanism 2 transmits torque to drive the rotary knife 23 to obliquely and linearly cut the slope earthwork, the cutting motor 32 of the slope cutting mechanism 3 drives the slope cutting knife 33 to obliquely and linearly cut the slope earthwork, the soil collecting hopper 1 collects the cut soil, the soil discharging mechanism 4 discharges the soil out of the trench, the trench slope earthwork after excavation is not easy to collapse, the soil is discharged during the operation, the slope excavation precision is high, the operation time is short, the efficiency is high, and the operation is simple and convenient.

When the soil collection bucket is used, the soil collection bucket 1 is driven to move forwards when the excavating equipment moves forwards, when the soil collection bucket 1 moves forwards, the horizontal trowelling plate 11 trowels the horizontal soil body in the groove, the inclined trowelling plate 12 trowels the groove side slope in an inclined mode, meanwhile, the excavated soil body is collected when the soil collection bucket 1 moves forwards, the groove earthwork is not prone to collapse during excavation, meanwhile, soil is discharged, efficiency is high, and operation time is short.

When the soil receiving bucket is used, the rotary cutting mechanism 2 located at the front end of the open slot 14 linearly cuts foundation trench side slope earthwork in an inclined mode, the slope surface cutting mechanism 3 located in the open slot 14 linearly cuts the cut earthwork in an inclined plane, a cutting surface of the inclined plane linear cutting and the inclined troweling plate 12 are in the same plane, when the soil receiving bucket 1 moves forward, the inclined troweling plate 12 troweling is used for troweling, the side slope is pressed by stress while being trowelled, and the side slope is not prone to collapse.

During the use, after rotatory cutting mechanism 2 and domatic cutting mechanism 3 cut the side slope, decompose into a plurality of clods with the side slope soil body, fall to the ditch inslot after the clod collapses, receive soil fill 1 and advance simultaneously by horizontal trowelling plate 11 promotion soil body backward movement by fender apron 13 and block, horizontal trowelling plate 11 is trowelled basic ditch groove bottom simultaneously, the front end is the horizontal trowelling plate 11 resistance of triangle-shaped structure for little.

When the universal joint is used, the cross universal coupling 24 transmits torque to the rotating shaft 21, and the rotating shaft 21 drives the rotating knife 23 to rotate and cut slope earthwork.

When the universal joint cross 24 is used, the shaft of the wheel and the shaft of the wheel form an included angle with the rotating shaft 21, and the universal joint cross can transmit torque to the rotating shaft 21 even if the wheel bumps during running.

During the use, cutting motor 32 drive domatic cutting knife 33 is rotatory, and domatic cutting knife 33 cuts once more to the earthwork that rotation cutting mechanism 2 has cut, makes the side slope earthwork decompose into a plurality of clods.

During the use, support 31 supports cutting motor 32, and the domatic cutting knife 33 with cutting motor 32 output shaft is in the slope state of dangling, does not take place to interfere with the rotary cutter 23 of rotatory cutting mechanism 2 when making domatic cutting knife 33 rotatory.

When the soil collecting device is used, soil bodies cut on the side slope gradually collapse into the soil collecting hopper 1, the soil inlet 45 is buried by the soil bodies, and the soil conveying motor 42 drives the spiral piece 43 to rotate so as to convey the soil bodies upwards along the soil conveying pipe 41 to the soil discharging pipe 44 to be discharged.

When the soil conveying pipe is used, when the opening of the soil inlet 45 is upwards buried by soil, the spiral sheets 43 enter the soil conveying pipe 41 when rotating, the soil is conveyed to the upper end of the soil conveying pipe 41 and discharged from the soil discharging pipe 44 with the downward opening, and the discharged soil falls outside the foundation trench, so that the soil is discharged while the trench side slope is excavated.

The above-described embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and features in the embodiments and examples in the present application may be arbitrarily combined with each other without conflict. The protection scope of the present invention is defined by the claims, and includes equivalents of technical features of the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the invention.

Claims

1. The utility model provides a device is dug into to double trapezoid earthwork which characterized by: the soil collecting and discharging device comprises a soil collecting hopper (1), a rotary cutting mechanism (2), a slope surface cutting mechanism (3) and a soil discharging mechanism (4); the slope cutting mechanism (3) and the rotary cutting mechanism (2) are connected with an inclined troweling plate (12) of the soil collection hopper (1), the rotary cutting mechanism (2) is positioned in front of the slope cutting mechanism (3), a soil inlet (45) of the soil discharging mechanism (4) extends into the soil collection hopper (1), and a soil discharging pipe (44) extends out of the soil collection hopper (1); the rotary cutter (23) of the rotary cutting mechanism (2) is positioned above the front end of the open slot (14) of the soil collecting bucket (1), and the slope cutting knife (33) of the slope cutting mechanism (3) is positioned in the open slot (14) of the soil collecting bucket (1) and is positioned on the same horizontal plane with the open slot.

2. The double trapezoidal earth moving device of claim 1, wherein: the soil receiving bucket (1) comprises an inclined trowelling plate (12) connected with the horizontal trowelling plate (11) and a soil retaining plate (13) connected with the horizontal trowelling plate (11) and the inclined trowelling plate (12).

3. The double trapezoidal earth moving device of claim 2, wherein: the inclined troweling plate (12) is an inclined plate, and an open groove (14) is formed in one end of the inclined troweling plate; one end of the horizontal troweling plate (11) close to the open slot (14) is of a triangular structure.

4. The double trapezoidal earth moving device of claim 1, wherein: the rotary cutting mechanism (2) comprises a support plate (22) matched with two ends of the rotary shaft (21), a plurality of rotary knives (23) positioned on the rotary shaft (21), and a cross universal coupling (24) connected with one end of the rotary shaft (21); the support plate (22) is positioned at two sides of the open slot (14) and connected with the open slot.

5. The double trapezoidal earth moving device of claim 4, wherein: the rotating shaft (21) is of an inclined structure, and the cross universal coupling (24) is connected with one lower end.

6. The double trapezoidal earth moving device of claim 1, wherein: the slope cutting mechanism (3) comprises a cutting motor (32) connected with the support (31) and a slope cutting knife (33) connected with an output shaft of the cutting motor (32).

7. The double trapezoidal earth moving device of claim 6, wherein: the bracket (31) is a groove wall with a downward opening and is connected with two sides of the open groove (14), and the slope cutting knife (33) is obliquely suspended below the bracket (31).

8. The double trapezoidal earth moving device of claim 1, wherein: the soil discharging mechanism (4) comprises a soil conveying motor (42) connected with one end of the soil conveying pipe (41) and a spiral piece (43) which is positioned in the soil conveying pipe (41) and connected with an output shaft of the soil conveying motor (42), the soil discharging pipe (44) is arranged on the soil conveying pipe (41) positioned at one end of the soil conveying motor (42), and a soil inlet (45) is formed at the other end of the soil conveying pipe (41).

9. The double trapezoidal earth moving device of claim 8, wherein: an output shaft of the soil conveying motor (42) is matched with sealing plates at two ends of the soil conveying pipe (41); the opening of the soil discharging pipe (44) faces downwards, and the opening of the soil inlet (45) faces upwards.

10. The method of excavating a double trapezoidal earthwork excavation apparatus of any one of claims 1 to 9, comprising the steps of:

s1, excavating the first layer, namely excavating the first layer of foundation pit by adopting an excavator, wherein the bottom of the foundation pit is flat; excavating a first layer of initial side slope at the initial point and the final point of the foundation pit respectively, and stopping when the length of the initial side slope can accommodate the soil collecting hopper (1);

s2, mounting, namely placing the excavating device in a foundation pit, contacting an inclined trowelling plate (12) of the soil collecting hopper (1) with a first-layer initial slope, contacting a horizontal trowelling plate (11) with the bottom of the first-layer foundation pit, and facing the other end of the foundation pit by an open slot (14); the cross universal coupling (24) is connected with a wheel shaft of the excavator; the soil blocking plate (13) is connected with a frame of the excavator; at the moment, the excavating device is positioned at one side of the excavator, and the opening groove (14) is consistent with the advancing direction of the excavator; the cutting motor (32) and the soil conveying motor (42) are electrically connected with an electric control system of the excavator;

s3, performing side slope tunneling, driving a rotary cutter (23) to cut the first layer of foundation pit side slope by an excavator advancing belt cross universal coupling (24), and advancing a soil collecting hopper (1) along with the excavator; meanwhile, the power supply of the cutting motor (32) is closed, and the slope cutter (33) rotates to cut the first layer of foundation pit side slope along the advancing direction of the inclined troweling plate (12);

s4, leveling, namely, when the soil collecting bucket (1) advances, leveling the first layer of foundation pit side slope by the inclined leveling plate (12), and leveling the bottom of the first layer of foundation pit by the horizontal leveling plate (11);

s5, collecting soil, wherein when the soil collection bucket (1) advances, the first layer of foundation pit side slope is cut into a plurality of soil blocks by the rotary cutting mechanism (2) and the slope cutting mechanism (3), the soil blocks collapse to the bottom of the first layer of foundation pit under the action of self weight and the pushing of the cutting motor (32) when the shaft body advances, and when the horizontal trowelling plate (11) advances, the soil blocks are pushed to move backwards and are blocked in the soil collection bucket (1) by the soil blocking plate (13);

s6, dumping, wherein when the soil blocks in the soil collecting hopper (1) bury the soil inlet (45) of the soil discharging mechanism (4), the power supply of the soil conveying motor (42) is closed; the soil conveying motor (42) drives the spiral piece (43) to rotate, and soil blocks move along the soil conveying pipe (41) from the soil inlet (45) and are discharged from the soil discharging pipe (44) to the ground layer;

s7, when the excavator advances to the end point of the first floor, the excavator turns around at the position, and the inclined troweling plate (12) of the soil collection bucket (1) is in contact with the end point slope on the other side of the first floor; repeating S3-S6;