CN209261585U - Loess tunnel excavates machine-cut soil cutter head - Google Patents
Loess tunnel excavates machine-cut soil cutter head Download PDFInfo
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- CN209261585U CN209261585U CN201822042592.XU CN201822042592U CN209261585U CN 209261585 U CN209261585 U CN 209261585U CN 201822042592 U CN201822042592 U CN 201822042592U CN 209261585 U CN209261585 U CN 209261585U
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Abstract
The utility model discloses a kind of loess tunnels to excavate machine-cut soil cutter head, and loess tunnel excavates machine-cut soil cutter head and is installed on the forearm of excavator, including horizontal base knife and vertical base knife, and horizontal base knife is in isosceles triangle, and the intersection points of two sides is towards front；Horizontal base knife two sides are equipped with the side tool sword for cutting soil；The vertical base knife minor arc arch upward in arc top, vertical base sword arc shape side is equipped with the arc cutter sword for cutting soil；Horizontal base knife has connected up epimere.The utility model carries out rotary cutting soil movement on the direction for being parallel to the excavation face soil body, the workbench of excavator joined also by its rotation and cut native movement, 8-10 times for cutting soil amount and being the primary shoveling amount of scraper bowl once rotated, the excavation efficiency for improving tunnel, the oil consumption of excavator when reducing excavation.
Description
Technical field
The utility model relates to the device and method that technical field of construction more particularly to a kind of loess tunnel are cut the earth.
Background technique
The main thought that loess tunnel is excavated in China is big cross section conversion light section, strengthening supporting, closes in time, accordingly
The common construction technology formed has three steps, seven step excavating load, CRD method, CD method and two side-wall pilot tunnel etc..The above construction technology
It is human assistance mechanical excavation, common excavation mechinery is middle-size and small-size backacter, and excavator includes rotatable work
Make platform (workbench is equipped with driver's cabin), large arm and the forearm hinged with large arm, large arm to be driven by big arm cylinder, forearm is by forearm
Oil cylinder driving；Scraper bowl executes the device excavated for it.Scraper bowl passes through together with pin hinges between the forearm of installation scraper bowl.It digs
When pick machine is cut the earth, every movement a cycle (by controlling large arm, forearm, forward extends out scraper bowl, cuts the earth downwards, withdrawing, downwards
Put soil), the soil amount of a scraper bowl can only be dug out.Soil is usually poured on underground after digging up, finally by the transport devices collection such as airborne carrier
Middle entrucking transports.
Middle-size and small-size backacter has following defect when practice of construction:
1, scraper bowl volume is big, and every scraper bowl digging amount is big, and operator is not easy the position of accurate judgement scraper bowl, be easy to cause super
It digs；
2, scraper bowl can only be excavated perpendicular to tunnel excavation direction, and every circulation only digs scraper bowl soil, inefficient；Every circulation
In, scraper bowl needs first to protrude into the soil body forward, cuts the earth, then get back, finally puts down soil still further below, the transformation in each direction will
Big energy is expended, whole energy consumption is higher.
3, by control big arm cylinder and oil cylinder of small arm when excavator works, large arm is swung up and down, it can only be perpendicular to excavation
Face excavate the soil body, scraper bowl excavate the soil body after the adjacent soil body may slump therewith, as above shovel the amount of backbreaking it is unqualified may cause it is adjacent
The soil body of position slump is also backbreak.
4, scraper bowl volume is larger, and the operator of excavator is not easy its position of accurate judgement, this, which is also easy to bring, backbreaks now
As.
Utility model content
The purpose of this utility model is to provide a kind of loess tunnels to excavate machine-cut soil cutter head, changes what previous execution was excavated
The prior art that device can only be excavated perpendicular to tunnel excavation direction improves the efficiency and drop of tunneling suitable for laterally cutting soil
Energy consumption in low excavation.
To achieve the above object, the loess tunnel of the utility model excavates the forearm that machine-cut soil cutter head is installed on excavator
On, including horizontal base knife and vertical base knife,
Horizontal base knife is in isosceles triangle, including the first bottom edge and two sides, and two sides are in the camber line to concave, two sides
Intersection point towards front；Two sides are equipped with the side tool sword for cutting soil；
The vertical base knife minor arc arch upward in arc top, including the upward arc in the second bottom edge and the arc top being connected with bottom edge
Shape side, the arc-shaped side are equipped with the arc cutter sword for cutting soil；
Horizontal base knife connects up vertical epimere, and the top margin of epimere is the downward arc-shaped side in arc top, the top margin of epimere
Rear end and the arc top of the arc-shaped side of vertical base knife at be connected, the front end of the top margin of epimere is located at the two sides of horizontal base knife
The surface of intersection point and adjacent with the intersection point.
Epimere is connected with stiffening plate in the medium position bilateral symmetry on its front-rear direction, stiffening plate be triangular plate and its
Three sides are straightway, and a line of stiffening plate is vertical edges and is connected with epimere, the Article 2 Bian Weishui of stiffening plate
Pingbian is simultaneously connected with horizontal base knife, and the Article 3 side of stiffening plate is bevel edge.
The front end of the epimere is connected with preceding cutter head, and the point of a knife of preceding cutter head is stretched out to front and is used for perpendicular to excavation
The soil body is pierced on the direction in face；
The left and right ends of the vertical base knife are connected separately with side tool head, and the point of a knife of side tool head stretches out in the lateral direction to be used in combination
In cutting soil on the direction for be parallel to excavation face.
The vertical connecting plate that the vertical base knife is connected with horizontally disposed horizontal connecting plate backward and is vertically arranged, vertically
Connecting plate is fixedly connected with horizontal connecting plate；
The mounting plate that the rear end of horizontal connecting plate and vertical connecting plate is vertically arranged with one is fixedly connected, and mounting plate is backward
It is fixedly connected with two articulated slabs being connected for the forearm with excavator, two articulated slab parallel interval settings, two hinges
The spacing of fishplate bar is adapted with forearm width；It is respectively corresponded on two articulated slabs and on forearm equipped with pin hole, interior be equipped with of pin hole is used
In the connecting pin that articulated slab and forearm link together；The cross section that loess tunnel excavates machine-cut soil cutter head is less than or equal to excavate
The one third of mechanical shovel bucket cross section.
Parallel interval is equipped with two groups up and down for the connecting pin and pin hole.
The utility model has the advantage that
It is that can adapt to the movement of rotary cutting soil that the loess tunnel of the utility model, which excavates machine-cut soil cutter head biggest advantage, is mentioned
The high excavation efficiency in tunnel, the oil consumption of excavator when reducing excavation.
The setting of vertical connecting plate, horizontal connecting plate, mounting plate and articulated slab, structural strength is higher, both cuts convenient for completion
Soil movement, is also convenient for being connected with the forearm of excavator.
Machine-cut soil cutter head and its application method are excavated using the loess tunnel of the utility model, loess tunnel can be opened
Digging face carries out rotary cutting soil, 8-10 times for cutting soil amount and being the primary shoveling amount of scraper bowl once rotated, while loess tunnel excavator
The volume for cutting native cutter head greatly reduces compared with scraper bowl.Volume reduces the reduction for meaning soil body resistance, and then means more to save
Save energy.
Previous scraper bowl is to cut the earth on the direction perpendicular to the excavation face soil body, and the utility model then breaches this
One routine work method is the progress rotary cutting soil movement on the direction for being parallel to the excavation face soil body.
When previous shoveling, the workbench of excavator is not involved in shoveling movement.Use the utility model, the workbench of excavator
It joined also by its rotation and cut native movement, be the creative utilization to machine worktable is excavated.
It, can be on rotation route due to being to carry out the movement of rotary cutting soil on the direction for being parallel to the excavation face soil body
The soil body directly is cut away, the mode that traditional scraper bowl is cut the earth is overcome and is easy the defect backbreak.When traditional scraper bowl is cut the earth, if scraper bowl
It excavates position to be overlapped with last excavation position, then wastes energy；If scraper bowl excavates position and last excavation
There is interval in position, then must dig again once in interval, also waste energy.This requires operators will in each excavate
It aims at and correctly excavates position.
Rotary cutting soil amount of the loess tunnel excavation machine-cut soil cutter head of the utility model is the primary shoveling amount of scraper bowl
8-10 times, the number of such operator's homing position just reduces 8-10 times, due to aim at mistake caused by energy
Wasting phenomenon is also accordingly greatly decreased.
The scraper bowl of excavator needs to forward extend out scraper bowl, cuts the earth downwards, receives backward when completing primary shoveling movement
It returns, to decentralization soil, the change in each direction all expends big energy.The loess tunnel of the utility model excavates machine-cut soil cutter head and exists
In rotary course, direction of rotation does not change, and compared with using scraper bowl to cut the earth, direction change is greatly reduced and is brought
Energy dissipation.
Since the soil amount of cutting once rotated increases 8-10 times compared with the shoveling amount that scraper bowl is once cut the earth, greatly improve
The excavation efficiency in tunnel.
It is tested, excavates the loess tunnel of the same length of same specification, use the loess tunnel excavator of the utility model
After cutting native cutter head and its application method, the duration shortens one third, and the oil consumption of excavator reduces half, has significant drop
This synergy meaning.
Loess tunnel excavates the component that machine-cut soil cutter head and scraper bowl assemble for the selectivity of excavator, loess tunnel excavator
The cross section for cutting native cutter head is less than or equal to the one third of power shovel cross section, therefore the operator of excavator can be more
Accurately judge that loess tunnel excavates the physical location of machine-cut soil cutter head, so that compared with the past greatly reduce since vision is sentenced
It backbreaks caused by disconnected inaccuracy phenomenon.
Detailed description of the invention
Fig. 1 is the schematic perspective view of the utility model；
Fig. 2 is the main view of the utility model；
Fig. 3 is the top view of Fig. 2.
Specific embodiment
As shown in Figure 1 to Figure 3, the loess tunnel of the utility model excavates the forearm that machine-cut soil cutter head is installed on excavator
On, including horizontal base knife 1 and vertical base knife 2；
Horizontal base knife 1 is in isosceles triangle, including the first bottom edge and two sides, and two sides are in the camber line to concave, two sides
The intersection point on side is towards front；Two sides are equipped with the side tool sword 3 for cutting soil；
Vertical base knife 2 is in the upward minor arc arch in arc top (i.e. bowed arc is minor arc), including the second bottom edge and and bottom edge
The upward arc-shaped side in the arc top being connected, the arc-shaped side are equipped with the arc cutter sword 4 for cutting soil；
Horizontal base knife 1 connects up vertical epimere 5, and the top margin of epimere 5 is the downward arc-shaped side in arc top, epimere 5
It is connected at the rear end of top margin and the arc top of the arc-shaped side of vertical base knife 2, the front end of the top margin of epimere 5 is located at horizontal base knife 1
Two sides intersection point surface and, the height of adjacent space, that is, epimere 5 front end, enough to load before adjacent with the intersection point
Subject to cutter head.
Epimere 5 is connected with stiffening plate 6 in the medium position bilateral symmetry on its front-rear direction, and stiffening plate 6 is triangular plate
And its three sides are straightway, a line of stiffening plate 6 is vertical edges and is connected with epimere 5, the Article 2 of stiffening plate 6
Side is horizontal sides and is connected with horizontal base knife 1 that the Article 3 side of stiffening plate 6 is bevel edge.
The setting of stiffening plate 6 enhances the structural strength of the utility model, also has the work of the segmentation soil body when cutting soil
With.
The front end of the epimere 5 is connected with preceding cutter head 7, the point of a knife of preceding cutter head 7 stretched out to front and be used for perpendicular to
The soil body is pierced on the direction of excavation face；
The left and right ends of the vertical base knife 2 are connected separately with side tool head 8, and the point of a knife of side tool head 8 stretches out in the lateral direction
And for cutting soil on the direction for be parallel to excavation face.
The setting of preceding cutter head 7 reduces resistance of the utility model when the side perpendicular to the soil body extends upwardly into the soil body, makes
The utility model is easier to be pierced into the soil body.The setting of side tool head 8 reduces resistance of the utility model in rotary cutting soil, makes
The utility model is easier to carry out rotary cutting soil.
The vertical base knife 2 is connected with the horizontally disposed vertical connecting plate 10 horizontal connecting plate 9 and be vertically arranged backward,
The bottom end of vertical connecting plate is fixedly connected with horizontal connecting plate 9；10 parallel interval of vertical connecting plate of 9 top of horizontal connecting plate is set
There are two, there are two 10 parallel interval of vertical connecting plate of the lower section of horizontal connecting plate 9 is set, to enhance the knot of the utility model
Structure intensity.
The rear end of horizontal connecting plate 9 and vertical connecting plate 10 is fixedly connected with the mounting plate 11 that one is vertically arranged, installation
Plate 11 is fixedly connected with two articulated slabs 12 being connected for the forearm with excavator, two 12 parallel intervals of articulated slab backward
Setting, the spacing of two articulated slabs 12 are adapted with forearm width；On two articulated slabs 12 and respectively correspond on forearm equipped with pin
Hole, the interior connecting pin 13 being equipped with for articulated slab 12 and forearm to link together of pin hole；Loess tunnel excavates machine-cut soil cutter head
Cross section be less than or equal to power shovel cross section one third.Pin hole is passed through using connecting pin hingedly to play two components
Being routine techniques, specifically no longer it is described in detail.
Parallel interval is equipped with two groups up and down for the connecting pin 13 and pin hole.
Excavator and its workbench, large arm, forearm, big arm cylinder, oil cylinder of small arm and scraper bowl are existing conventional equipment, figure
Do not show.
The invention also discloses the application methods for using above-mentioned loess tunnel to excavate machine-cut soil cutter head, according to the following steps
It carries out:
First step is to excavate machine-cut soil cutter head in small arm of digger end installation loess tunnel；Small arm of digger is equipped with
Pin hole corresponding with the pin hole on articulated slab 12.
Second step is opened excavator into loess tunnel to be excavated；
Third step is to wait for carrying out at excavation face in tunnel cutting native operation；
The big arm cylinder and oil cylinder of small arm for adjusting excavator make loess tunnel excavate the radius of turn and tunnel of machine-cut soil cutter head
The preset width in road is adapted；
It is equipped with several Working benchs at excavation face, from top to bottom the excavation face above each Working bench is carried out to cut soil
Act and take off native movement；The soil body at excavation face is switched on Working bench by cutting soil movement, will be fallen in by taking off soil movement
Soil on Working bench is taken off to tunnel ground；For the excavation face above each Working bench, soil movement is cut from top to bottom
It carries out；
The height that loess tunnel excavates machine-cut soil cutter head is H centimetres, is completed after once cutting soil movement, operator's control is small
Arm moves down H centimetres, carries out cutting native movement to next layer soil body, be fully completed until to the excavation face above the Working bench
After once cutting soil movement, native movement is once taken off；
Four steps is outside muck haulage；
Excavation face at excavation face above each Working bench is completed after cutting soil movement and taking off soil movement, uses fortune
The soil cut is transported out tunnel by carrier aircraft；
First to fourth step is repeated, until the excavation operation in tunnel is fully completed.
Cutting soil movement is: operator controls excavator, and loess tunnel is made to excavate machine-cut soil cutter head perpendicular to wait excavate
It is pierced into the soil body to be excavated on the direction of the soil body, and horizontal base knife 1 and vertical base knife 2 is made to submerge the soil body to be excavated；
The workbench for controlling excavator drives large arm, forearm and the loess tunnel of excavator to excavate machine-cut soil cutter head along water
Square to rotating a circle, by loess tunnel the front soil body and soil at both sides cut, the soil cut is fallen on Working bench, complete
At once cutting native movement；
Taking off soil movement is: the loess tunnel for unloading small arm of digger end excavates machine-cut soil cutter head, at small arm of digger end
Install scraper bowl (scraper bowl and loess tunnel excavate the same position that machine-cut soil cutter head is mounted on forearm end), operator's control in portion
Excavator Dou bucket processed takes off the soil fallen on Working bench to tunnel ground, then unloads scraper bowl, installs loess tunnel excavation
Machine-cut soil cutter head is ready to cut soil movement next time.
It is specifically in the movement of small arm of digger end installation loess tunnel excavation machine-cut soil cutter head: excavates loess tunnel
Two articulated slabs 12 of machine-cut soil cutter head are stuck on small arm of digger, and make the pin hole and small arm of digger on two articulated slabs 12
On pin hole it is corresponding；So that pin is passed through the pin hole on pin hole and small arm of digger on articulated slab 12, by articulated slab 12 and digs
Pick machine forearm is hinged.
It is routine techniques that scraper bowl is installed on small arm of digger, is repeated no more.
Above embodiments are only to illustrate rather than limit the technical solution of the utility model, although referring to above-described embodiment pair
The utility model is described in detail, those skilled in the art should understand that: still can to the utility model into
Row modification or equivalent replacement should all without departing from any modification or partial replacement of the spirit and scope of the utility model
Cover in the scope of the claims of the utility model.
Claims (5)
1. loess tunnel excavates machine-cut soil cutter head, it is characterised in that: be installed on the forearm of excavator, including horizontal base knife and perpendicular
Straight base knife,
Horizontal base knife is in isosceles triangle, including the first bottom edge and two sides, and two sides are in the camber line to concave, the friendship of two sides
It puts towards front；Two sides are equipped with the side tool sword for cutting soil；
The vertical base knife minor arc arch upward in arc top, including the upward arc in the second bottom edge and the arc top being connected with bottom edge
Side, the arc-shaped side are equipped with the arc cutter sword for cutting soil；
Horizontal base knife connects up vertical epimere, and the top margin of epimere is the downward arc-shaped side in arc top, after the top margin of epimere
It holds and is connected at the arc top of the arc-shaped side of vertical base knife, the front end of the top margin of epimere is located at the intersection point of the two sides of horizontal base knife
Surface and adjacent with the intersection point.
2. loess tunnel according to claim 1 excavates machine-cut soil cutter head, it is characterised in that: epimere is on its front-rear direction
Medium position bilateral symmetry be connected with stiffening plate, stiffening plate is triangular plate and its three sides are straightway, stiffening plate
A line is vertical edges and is connected with epimere that the Article 2 side of stiffening plate is horizontal sides and is connected with horizontal base knife, is reinforced
The Article 3 side of plate is bevel edge.
3. loess tunnel according to claim 1 or 2 excavates machine-cut soil cutter head, it is characterised in that: the front end of the epimere
It is connected with preceding cutter head, the point of a knife of preceding cutter head stretches out to front and is used to be pierced into the soil body on the direction perpendicular to excavation face.
4. loess tunnel according to claim 1 or 2 excavates machine-cut soil cutter head, it is characterised in that: the vertical base knife
Left and right ends are connected separately with side tool head, and the point of a knife of side tool head stretches out in the lateral direction and in the direction for being parallel to excavation face
On cut soil.
5. loess tunnel according to claim 4 excavates machine-cut soil cutter head, it is characterised in that: the vertical base knife connects backward
The vertical connecting plate for being connected to horizontally disposed horizontal connecting plate and being vertically arranged, vertical connecting plate and horizontal connecting plate are fixed to be connected
It connects；
The mounting plate that the rear end of horizontal connecting plate and vertical connecting plate is vertically arranged with one is fixedly connected, and mounting plate is fixed backward
It is connected with two articulated slabs being connected for the forearm with excavator, two articulated slab parallel interval settings, two articulated slabs
Spacing be adapted with forearm width；It respectively corresponds on two articulated slabs and on forearm equipped with pin hole, is equipped in pin hole for will
The connecting pin that articulated slab and forearm link together；The cross section that loess tunnel excavates machine-cut soil cutter head is less than or equal to digger shovel
The one third of bucket cross section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822042592.XU CN209261585U (en) | 2018-12-06 | 2018-12-06 | Loess tunnel excavates machine-cut soil cutter head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822042592.XU CN209261585U (en) | 2018-12-06 | 2018-12-06 | Loess tunnel excavates machine-cut soil cutter head |
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| Publication Number | Publication Date |
|---|---|
| CN209261585U true CN209261585U (en) | 2019-08-16 |
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ID=67562309
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822042592.XU Active CN209261585U (en) | 2018-12-06 | 2018-12-06 | Loess tunnel excavates machine-cut soil cutter head |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109653760A (en) * | 2018-12-06 | 2019-04-19 | 中建七局第四建筑有限公司 | Excavator cuts native device with circumferential direction and its circumferential direction cuts indigenous method |
-
2018
- 2018-12-06 CN CN201822042592.XU patent/CN209261585U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109653760A (en) * | 2018-12-06 | 2019-04-19 | 中建七局第四建筑有限公司 | Excavator cuts native device with circumferential direction and its circumferential direction cuts indigenous method |
| CN109653760B (en) * | 2018-12-06 | 2024-07-02 | 中建七局第四建筑有限公司 | Circumferential soil cutting device for excavator and circumferential soil cutting method thereof |
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