CN111622289B - Hydraulic mechanical combined rock breaking milling wheel, double-wheel slot milling machine and slot forming construction method thereof - Google Patents
Hydraulic mechanical combined rock breaking milling wheel, double-wheel slot milling machine and slot forming construction method thereof Download PDFInfo
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- CN111622289B CN111622289B CN202010592011.9A CN202010592011A CN111622289B CN 111622289 B CN111622289 B CN 111622289B CN 202010592011 A CN202010592011 A CN 202010592011A CN 111622289 B CN111622289 B CN 111622289B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
- E02F3/92—Digging elements, e.g. suction heads
- E02F3/9212—Mechanical digging means, e.g. suction wheels, i.e. wheel with a suction inlet attached behind the wheel
- E02F3/9218—Mechanical digging means, e.g. suction wheels, i.e. wheel with a suction inlet attached behind the wheel with jets
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
- E02F3/92—Digging elements, e.g. suction heads
- E02F3/9212—Mechanical digging means, e.g. suction wheels, i.e. wheel with a suction inlet attached behind the wheel
- E02F3/9225—Mechanical digging means, e.g. suction wheels, i.e. wheel with a suction inlet attached behind the wheel with rotating cutting elements
- E02F3/9237—Suction wheels with axis of rotation in transverse direction of the longitudinal axis of the suction pipe
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
- E02F5/08—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with digging wheels turning round an axis
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
- E02F5/14—Component parts for trench excavators, e.g. indicating devices travelling gear chassis, supports, skids
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The application relates to a hydraulic machinery combined rock breaking milling wheel, a double-wheel slot milling machine and a slot forming construction method thereof, wherein the milling wheel comprises the following components: the milling wheel comprises a milling wheel main body, a plurality of milling teeth, a milling wheel main shaft and a high-pressure water jet device, wherein the milling teeth are fixed on the circumference of the milling wheel main body; the milling wheel main shaft drives the milling wheel main body to rotate through a milling wheel driving mechanism, and the high-pressure water jet device comprises: the device comprises a spray head controller, a plurality of edge cutting spray heads, a plurality of rock breaking spray heads and a fixing part, wherein the spray head controller is fixed in a through hole of a milling wheel spindle and synchronously rotates with the milling wheel spindle; the edge cutting spray head and the rock breaking spray head are respectively fixed on the milling wheel main body through fixing parts. The double-wheel slot milling machine and the slot forming construction method thereof have the advantages that the rock breaking efficiency and the rock breaking effect are improved to a certain extent compared with the traditional mechanical rock breaking mode, the abrasion of the cutter is small, the construction efficiency is improved, and the construction cost is reduced.
Description
Technical Field
The application relates to the technical field of underground engineering, in particular to a hydraulic machinery combined rock breaking milling wheel, a double-wheel slot milling machine and a slot forming construction method thereof.
Background
With the development of engineering technology, the underground continuous wall is a new technology which is rapidly developed and widely applied in foundation construction engineering and underground concealing technology. The underground diaphragm wall is integrally poured on the wall body, and has the advantages of high structural rigidity, good integrity, good seepage resistance, high durability, small influence on surrounding foundation structures and buildings and wide adaptive stratum. The method is widely applied to the fields of water conservancy reservoirs, port construction, house construction, municipal engineering and the like. The double-wheel slot milling machine is special equipment for constructing underground continuous wall, uses milling wheels to mill and break rock, and forms needed slot by reverse circulation slag discharge.
The milling wheel and the working device of the slot milling machine are used as direct construction parts of the slot milling machine, and the construction efficiency is determined. In engineering, hard rock formations are often encountered, resulting in reduced efficiency of the milling machine and severely compromising the life of the milling teeth. When the geological condition changes in the construction, the milling wheel and the milling wheel host machine need to be replaced frequently, and a great deal of time is wasted by frequent replacement and movement of the milling wheel and the host machine, so that the construction efficiency is low.
The existing double-wheel slot milling machine is used for mechanically breaking rock, when the tunneling mode encounters a hard rock stratum, the tunneling efficiency is low, and huge loss is caused to the service life of milling teeth.
Disclosure of Invention
The application provides a hydraulic machinery combined rock breaking milling wheel, a double-wheel slot milling machine and a slot forming construction method thereof, which solve the technical problems that in the prior art, hard rock stratum is encountered, the working efficiency of the slot milling machine is reduced, the service life of milling teeth is seriously lost, the rock breaking efficiency and the rock breaking effect are improved to a certain extent compared with the traditional mechanical rock breaking mode, the abrasion of a cutter is smaller, the construction efficiency is improved, and the construction cost is reduced.
The application provides a hydraulic mechanical combined rock breaking and milling wheel, which comprises: the milling machine comprises a milling wheel main body, a plurality of milling teeth, a milling wheel main shaft and a high-pressure water jet device, wherein the milling teeth are fixed on the circumference of the milling wheel main body; the milling wheel main shaft drives the milling wheel main body to rotate through a milling wheel driving mechanism, wherein the high-pressure water jet device comprises: a spray head controller, a plurality of edge cutting spray heads, a plurality of rock breaking spray heads and a fixing part,
the spray head controller is fixed in the through hole of the milling wheel spindle and synchronously rotates with the milling wheel spindle;
the edge cutting spray head and the rock breaking spray head are respectively fixed on the milling wheel main body through the fixing parts; the plurality of edge cutting spray heads are annularly arranged on two sides of the milling wheel main body; the rock breaking spray heads are respectively arranged between two adjacent milling teeth at intervals;
the edge cutting spray head and the rock breaking spray head are respectively communicated with the spray head controller through water sand guide pipes.
Preferably, the head controller includes: a hollow cylindrical shell and a baffle plate,
a cylindrical cavity is formed in the shell, a water flow inlet is formed in the axis position of one end of the shell, and a plurality of water flow outlets are formed in the circumferential position of the shell;
the baffle is the rest part of the cylinder with the outer diameter corresponding to the diameter of the cylindrical cavity and cut by a plane parallel to the axis;
the water flow inlet is fixedly connected with a water sand pipeline through a controller interface; the controller interface is fixedly connected with the baffle plate; the water sand pipeline is communicated with a water sand supply device;
the trimming spray head and the rock breaking spray head are respectively connected with the water outflow openings at corresponding positions on the shell through water sand pipes;
the baffle is arranged in the cylindrical cavity of the shell, the baffle and the shell form a revolute pair, and in the rotating process of the shell, the curved outer wall of the baffle is always tightly attached to the inner wall of the shell so as to shield the water outflow opening corresponding to the curved outer wall of the baffle.
Preferably, a plurality of the milling teeth are arranged in a sinusoidal curve shape on the circumference of the milling wheel body; each rock breaking spray head is arranged at the midpoint of two adjacent milling tooth connecting lines.
Based on the same inventive concept, the application also provides a hydraulic mechanical combined rock breaking double-wheel slot milling machine, which comprises: the hydraulic machinery is combined with a rock breaking milling wheel, a frame, a slurry transferring mechanism, a milling wheel driving mechanism, a deviation correcting mechanism and a water sand supply device,
the hydraulic machinery combined rock breaking milling wheel, the slurry transferring system, the milling wheel driving system, the deviation correcting system and the water sand supply device are all arranged on the frame;
the mud transfer system is used for sucking mud generated by rock breaking and transferring the mud to the ground;
the milling wheel driving system is used for driving the milling wheel main body to rotate;
the deviation correcting mechanism is used for adjusting the milling angle of the hydraulic machinery combined rock breaking milling wheel;
the water sand supply device is used for supplying high-pressure water sand to the hydraulic machinery combined rock breaking and milling wheel.
Preferably, the slurry transfer mechanism includes: a slurry suction pipe, a slurry pump and a slurry pipe, wherein,
the pulp suction pipe is arranged at the lower part of the frame, and the lowest end of the pulp suction pipe is higher than the highest point of high-pressure water jet ejected by the high-pressure water jet device;
the slurry pump is arranged in the frame, the lower slurry suction port of the slurry pump is connected with the slurry suction pipe, and the upper slurry outlet of the slurry pump is connected with the slurry pipe;
the end of the mud pipe extends to the surface.
Preferably, the cutterhead drive mechanism includes: the motor and the transmission part are arranged, the output end of the motor is connected with the transmission part, the transmission part is connected with the milling wheel spindle, and the motor drives the milling wheel spindle to rotate through the transmission part.
Preferably, the deviation rectifying system comprises: an upper deviation correcting plate, a lower deviation correcting plate, a gyroscope and a controller,
the gyroscope is arranged at the lower part of the frame and is electrically connected with the controller, and the gyroscope transmits the perceived working gesture data of the hydraulic machinery combined rock breaking double-wheel slot milling machine to the controller;
the controller is electrically connected with the upper deviation correcting plate and the lower deviation correcting plate; the controller converts the working gesture data into an upper deviation correcting plate action signal and a lower deviation correcting plate action signal;
the controller transmits the action signal of the upper deviation correcting plate to the upper deviation correcting plate so as to control the upper deviation correcting plate to move, and simultaneously, the controller transmits the action signal of the lower deviation correcting plate to the lower deviation correcting plate so as to control the lower deviation correcting plate to move, so that the hydraulic machinery combined rock breaking double-wheel slot milling machine is adjusted to a set milling angle.
Preferably, the water sand supply device includes: a water bin, a sand bin, a water supply pipeline, a sand supply pipeline, a grinding material storage tank, a high-pressure pump and a pressure compensator,
one end of the water supply pipeline is connected with the water bin, and the other end of the water supply pipeline is connected with the high-pressure pump;
one end of the sand supply pipeline is connected with the sand bin, and the other end of the sand supply pipeline is connected with the storage and grinding tank;
the grinding material storage tank is fixed on the frame and is connected with the input end of the high-pressure pump;
the high-pressure pump is fixed on the frame, and the output end of the high-pressure pump is connected with the pressure compensator through a water sand pipeline;
the pressure compensator is communicated with the spray head controller through a water sand pipeline.
Based on the same inventive concept, the application also provides a grooving construction method of the hydraulic machinery combined rock breaking double-wheel grooving machine, which comprises the following steps:
step one: installing the hydraulic mechanical combined rock breaking milling wheel, and aligning the hydraulic mechanical combined rock breaking milling wheel to a guide groove;
step two: starting the hydraulic mechanical combined rock-breaking double-wheel slot milling machine, rotating and milling the rock by the hydraulic mechanical combined rock-breaking milling wheel, and simultaneously, pumping out the slurry by the slurry transfer mechanism to enable the hydraulic mechanical combined rock-breaking double-wheel slot milling machine to mill downwards by one stroke;
step three: repeating the second step until the operation point reaches the designated depth, and lifting the hydraulic machinery combined rock breaking double-wheel slot milling machine;
step four: and translating the hydraulic machinery combined rock breaking double-wheel slot milling machine to a next operation point, and repeating the first, second and third steps to continue milling operation until the underground diaphragm wall slot forming construction is completed.
Preferably, the second step specifically includes:
the hydraulic mechanical combined rock breaking double-wheel slot milling machine slowly enters a guide slot, and when the hydraulic mechanical combined rock breaking milling wheel is about to contact a rock stratum, the milling wheel driving mechanism and the high-pressure water jet device are started;
the hydraulic machinery is combined with a rock breaking milling wheel to generate a water knife which rotates along with the milling wheel main body, and the water knife cuts a plurality of hydraulic cutting grooves in a rock stratum in advance;
the milling teeth perform milling operation on the rock stratum with the hydraulic grooving, so that the rock mass is damaged;
the detached rock mass is sucked by the slurry transferring mechanism and then conveyed to the ground.
One or more technical solutions provided in the embodiments of the present application at least have the following technical effects or advantages:
the high-pressure water jet device of the hydraulic mechanical combined rock breaking and milling wheel can work according to a preset mode, and hydraulic grooving is cut on a rock stratum before tooth milling impacts the rock stratum, so that hydraulic-mechanical combined rock breaking is realized, and compared with the traditional mechanical rock breaking, the hydraulic-mechanical combined rock breaking and milling wheel has the advantages of good effect, high efficiency and low energy consumption; the double-wheel slot milling machine can better complete larger-degree rock breaking when the same rock is broken, impact force and milling tooth penetration required by rock breaking are smaller than those of the traditional mechanical rock breaking, the rock breaking efficiency and the rock breaking effect are improved, and the rock breaking energy consumption and the milling tooth abrasion are reduced; the water sprayed by the high-pressure water jet is directly mixed with broken rock, and is pumped by a slurry pump, so that water is not required to be injected into the milling groove by an additional water pump; therefore, the technical problems that in the prior art, hard rock stratum is encountered, the working efficiency of the milling groove machine is reduced, the service life of the milling tooth is seriously lost are solved, the rock breaking efficiency and the rock breaking effect are improved to a certain extent compared with the traditional mechanical rock breaking mode, the abrasion of a cutter is small, the construction efficiency is improved, and the construction cost is reduced.
Drawings
FIG. 1 is a front view of a hydraulic mechanical combined rock breaking double-wheel slot milling machine provided by an embodiment of the application;
FIG. 2 is a side view of a hydraulic-mechanical combined rock breaking two-wheel slot milling machine provided by an embodiment of the application;
FIG. 3 is an elevation view of a combined hydraulic and mechanical rock breaking and milling wheel provided by an embodiment of the application;
FIG. 4 is a side view of a combined hydraulic and mechanical rock breaking cutterhead provided by an embodiment of the application;
FIG. 5 is an assembly schematic diagram of a high-pressure water jet device and a nozzle controller in a hydraulic machinery combined rock breaking and milling wheel according to an embodiment of the present application;
FIG. 6 is a schematic diagram of a hydraulic mechanical combined rock breaking underground diaphragm wall grooving construction according to an embodiment of the present application;
fig. 7 is a schematic diagram of a rock breaking principle of a hydraulic mechanical combined rock breaking double-wheel slot milling machine provided by the embodiment of the application;
FIG. 8 is a schematic structural diagram of a nozzle controller of a hydraulic machinery combined rock breaking and milling wheel according to an embodiment of the present application;
fig. 9 is a schematic structural diagram of a baffle of a spray head controller according to an embodiment of the present application.
In the figure:
the combined rock breaking milling wheel of the hydraulic machinery, 1.1-milling teeth, 1.2-milling wheel main body, 1.3-milling wheel main shaft, 2-rack, 3-high pressure water jet device, 3.1-nozzle, 3.2-fixing device, 3.3-water sand guide pipe, 4-nozzle controller, 4.1-baffle, 4.2-shell, 4.3-water outflow port, 4.4-controller interface, 5-water sand pipeline, 6-scraper, 7-pressure compensator, 8-motor, 9-lower deviation rectifying plate, 10-slurry pump, 10.1-slurry suction pipe, 11-controller, 12-high pressure pump, 13-storage grinding tank, 14-hydraulic pump station, 15-upper deviation rectifying plate, 16-slurry pipe, 17-electric box, 18-pipeline beam, 18.1-pipeline interface, 19-suspension device, 20-guide groove, 21-milling cutting face and 22-hydraulic cutting groove.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the embodiments of the present application will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 to 9, the hydraulic machinery combined rock breaking underground diaphragm wall grooving construction method provided by the application comprises the following steps:
step one: installing a hydraulic mechanical combined rock breaking milling wheel 1, aligning the milling wheel with a guide groove 20, and controlling a hydraulic mechanical combined rock breaking double-wheel groove milling machine (working device) to fall to a position about 10 cm away from a milling surface 21; the milling teeth 1.1 on the milling wheel has enough strength and rigidity, and can bear the reaction force and shearing stress generated by impacting the rock of the milling surface 21 during milling operation; the pressure of the high pressure water jet is sufficient to cut a hydraulic kerf 22 in the rock mass.
Step two: the combined rock breaking double-wheel slot milling machine is started, the milling wheel motor 8 drives the milling wheel to rotate to mill the rock, and the slurry pump 10 pumps the slurry out, so that the working device mills downwards for one stroke.
The specific process is as follows: the upper deviation correcting plate 15 and the lower deviation correcting plate 9 support the two sides of the milling groove, the upper stranded rope and the deviation correcting plate fix the position of the working device, and the upper stranded rope and the deviation correcting plate gradually move downwards along with the breaking of rock and the transportation of slurry through the dead weight of the working device.
During rock breaking, the high-pressure water jet device 3 sprays high-pressure water flow along with the rotation of the milling wheel main body 1.2, hydraulic cutting grooves 22 are formed on the milling surface 21 before the milling teeth 1.1 contact the milling surface 21, namely, when the high-pressure water jet device 3 works, hydraulic pre-cracks are formed on the milling surface between two adjacent milling teeth 1.1 (as shown in fig. 6).
The milling teeth 1.1 then impact the milling surface 21 by rotation of the milling wheel, so that the rock mass is destroyed and is milled from the milling surface 21 to rock slag.
The rock slag is mixed with the water flow ejected by the high-pressure water jet device 3 to form slurry, the slurry is sucked out of the slurry suction pipe 10.1 by the pressure provided by the slurry pump 10 and is transported to the ground by the slurry pipe 16, one milling period is finished, and the working device is moved downwards by releasing the stranded rope to carry out the next milling period.
Step three: and step two, repeating the step two until the operation point reaches the designated depth, and retracting the stranded rope to lift the working device.
Step four: and translating the working device to the next working point, and repeating the first, second and third steps to continue the milling operation.
Further, in the second step, the milling teeth 1.1 and the high-pressure water jet device 3 rotate along with the milling wheel main body 1.2 at the same time, so that the rock mass is crushed.
A cavity is reserved in the center of the milling wheel spindle 1.3, a rigid water sand pipeline 5 and a high-pressure water jet nozzle controller 4 are arranged in the milling wheel spindle, the high-pressure water jet nozzle controller 4 is used for realizing the rotation of a water knife, the water outlet sequence of the high-pressure water jet nozzle 3.1 can be realized at the same time, the high-pressure water jet nozzle controller 4 is fixed with the milling wheel spindle 1.3, a shell 4.2 of the high-pressure water jet nozzle controller is synchronously rotated with the milling wheel spindle 1.3, a baffle 4.1 is connected with the water sand pipeline 5 and is kept static during the rotation, and the upper part of the water sand pipeline 5 is connected with a pressure compensator 7 to provide a high-pressure water sand mixture; the water flow inlet is fixedly connected with a water sand pipeline 5 through a controller interface 4.4; the controller interface 4.4 is fixedly connected with the baffle 4.1.
The water outflow openings 4.3 on the shell 4.2 of the high-pressure water jet nozzle controller 4 are in one-to-one correspondence with the fixing devices 3.2 of the high-pressure water jet device 3 so as to realize synchronous rotation; the water flow and sand supply of the working device are supplied by a water bin and a sand bin on the main machine, water sand is transported to a high-pressure pump 12 on the working device through a pipeline to be pressurized, the pressure is determined by the hardness of rock or soil body during construction, the water sand is transported to a high-pressure water jet pressure compensator 7 through a high-flow water sand pipeline 5 after being pressurized, the lost pressure during transportation in the pipeline is compensated, and meanwhile, the high-pressure water flow and the sand are mixed and then injected into the water sand pipeline 5 and transported to a high-pressure water jet nozzle controller 4.
In the tunneling process, the gesture of the working device is sensed by the deviation correcting controller 11 and the sensor (gyroscope) at the moment, the working gesture of the working device is collected by the gyroscope in the working device in real time, the gesture is converted into action data of the upper deviation correcting plate 15 and the lower deviation correcting plate 9 through the singlechip in the working device, and the action data are transmitted to the hydraulic devices of the upper deviation correcting plate and the lower deviation correcting plate through digital signals, so that the deviation correcting function of the working device is completed.
Referring to fig. 1 to 5, it can be seen that: the adopted hydraulic machinery combined rock breaking milling wheel 1 comprises a milling wheel main body 1.2, a milling tooth 1.1 structure and a high-pressure water jet device 3.
The milling teeth 1.1 are structurally arranged on the milling wheel main body 1.2; the milling teeth 1.1 are arranged at intervals, and the shape of the connection of the central points of the milling teeth 1.1 is a function image shape of a sine function y=sin ωx, wherein the value of ω is measured according to experiments or engineering experience values are taken.
The high-pressure water jet device 3 is arranged on the milling wheel main body 1.2 and comprises a high-pressure water jet nozzle 3.1, a fixing device 3.2 and a water sand guide pipe 3.3, wherein the edge cutting nozzle 3.1 with an edge cutting function is arranged on the side surface of the milling wheel main body 1.2, and the rock breaking nozzle 3.1 with a milling function is arranged at the midpoint position of the connecting line of every two adjacent milling teeth 1.1. The fixing device 3.2 is arranged on the milling wheel main body 1.2, the installation position is consistent with the position of the high-pressure water jet nozzle 3.1, and the fixing device 3.2 is used for fixing the water sand guide pipe 3.3. One end of the water sand conduit 3.3 is connected with the spray head 3.1, and the other end is connected with the spray head controller 4.
The milling teeth 1.1 and the high-pressure water jet nozzle 3.1 on the milling wheel main body 1.2 are arranged periodically; the high-pressure water jet nozzle 3.1 sequentially works according to the design of the high-pressure water jet nozzle controller 4, and a hydraulic grooving 22 is cut on the milling surface 21 in advance before the milling cutter contacts the milling surface 21, so that the aim of hydraulic-mechanical combined rock breaking is fulfilled.
The high-pressure water jet nozzle 3.1 is connected with the nozzle controller 4 by using a hard pressure pipe (a water sand conduit 3.3) made of metal materials, and the arrangement mode of the high-pressure water jet nozzle is divided into a trimming nozzle group and a rock breaking nozzle group, wherein the trimming nozzle group is arranged at the edge of a milling wheel and is responsible for cutting a groove edge, and the rock breaking nozzle group is arranged at the middle point of a milling tooth connecting line and is responsible for breaking rock and grooving in advance.
The head controller 4 includes: baffle 4.1, shell 4.2, water outlet 4.3 and controller interface 4.4; the high-pressure water jet controller 4 is arranged inside the milling wheel spindle 1.3 and rotates synchronously with the milling wheel spindle; the baffle 4.1 and the controller interface 4.4 are rigidly connected into a whole through welding, and the controller interface 4.4 is used for connecting a water sand pipeline 5; the center of the disc part of the baffle 4.1 is provided with a through hole for water flow sent out by the water sand pipeline 5 to enter the shell 4.2.
When the outer shell 4.2 rotates, when the water outlet 4.3 on the outer shell 4.2 is positioned in the shielding range of the baffle plate 4.1, no water flows through, the corresponding high-pressure water jet nozzle 3.1 does not spray high-pressure water, at the moment, the water outlet 4.3 which is not positioned in the shielding range of the baffle plate 4.1 has water flows through, and the corresponding high-pressure water jet nozzle 3.1 has high-pressure water jet spraying, so that the effect of controlling water flow is achieved, and only the water jet nozzle 3.1 positioned below the milling wheel at any moment is allowed to work so as to prevent the damage of the high-pressure water jet and the body thereof (the structure of a nozzle controller is shown in fig. 8 and 9).
The milling wheels of the combined rock breaking double-wheel slot milling machine are two pairs, four milling wheels are connected through the milling wheel spindle 1.3, and the milling wheel spindle 1.3 is driven to rotate through the milling wheel motor 8 so that the milling wheels rotate.
As can be seen with reference to fig. 1 and 2: the hydraulic-mechanical combined rock breaking double-wheel slot milling machine comprises two groups of milling wheels, a frame 2, a high-flow water sand pipeline 5, a scraper 6, a pressure compensator 7, a milling wheel motor 8, a lower deviation correcting plate 9, a slurry pump 10, a slurry suction pipe 10.1, a controller 11, a high-pressure pump 12, a grinding material storage tank 13, a hydraulic pump station 14, an upper deviation correcting plate 15, a slurry pipe 16, an electric box 17, a pipeline bundle 18, a pipeline interface 18.1 and a suspension device 19.
The frame 2 is a main body frame of the working device, the main body of the frame is formed by a steel structure, U-shaped steel or I-shaped steel is used for manufacturing, the inside of the frame is divided into a plurality of layers of structures through steel plates, each device in the working device is installed, and triangular I-shaped steel beams are installed in the frame and used for improving the stability and rigidity of the working device.
The milling wheel is arranged at the lower part of the frame 2 and is used for carrying out combined rock breaking and milling operation.
The scraper 6 is arranged below the frame 2 and positioned at the outer side of the milling wheel and is used for processing the side surface of the milling groove in cooperation with the high-pressure water jet nozzle 3.1.
The pipeline bundle 18 is an electric, control and water sand pipeline, connects the working device with the host machine, and is fixed on one side of the working device by using a pipeline clamp; the pipeline interface 18.1 is mounted above the working device and is an interface for various pipelines.
An electrical box 17 is fixed to one side of the frame 2 for distribution of the working devices and control of the respective equipment.
The high-pressure pump 12 is arranged and fixed in the frame 2, and is internally provided with a centrifugal pump and a control circuit for supplying high-pressure water to the high-pressure water jet device 3; the high-pressure pump 12 can adjust the water pressure and flow rate through a control circuit so as to adapt to different working conditions, and can reduce the pressure and flow rate when the rock is softer so as to reduce the water consumption and the power consumption; the abrasive storage tank 13 is fixed on the frame 2 and is connected with the input end of the high-pressure pump 12; a sand storage tank 13 is installed at one side of the high pressure pump 12 for storing sand abrasive.
The pressure compensator 7 is arranged below the frame 2, above the milling wheel, and an inlet of the pressure compensator is connected with the high-pressure pump 12 through a pipeline to compensate pressure loss in the pipeline, mix abrasive materials with high-pressure water flow and improve cutting capability of high-pressure water flow.
The milling wheel motor 8 is arranged below the frame 2 and is a power source of the milling wheel, and the power source generates power to drive the milling wheel spindle 1.3 to rotate through the transmission part, so as to drive the milling wheel to work.
The slurry suction pipe 10.1 is arranged at the lower side of the frame 2 and positioned between the two milling wheel sets and is used for sucking a slurry mixture formed by mixing milled rock scraps and water; a slurry pump 10 is mounted on the frame 2 for providing a negative pressure to draw up the slurry mixture through the slurry pipe 10.1 and pump to the surface; a mud pipe 16 is fixed to one side of the frame 2 for transporting mud to the ground.
The controller 11 of the deviation correcting system is arranged in the middle of the frame 2, the inside of the controller is provided with a gyroscope and a singlechip, the gyroscope is used for sensing gesture data of a working device, the gyroscope transmits the sensed gesture data to the singlechip through a circuit, the singlechip processes the data through a program which is arranged in advance, parameters of each deviation correcting plate needing to move can be calculated and obtained, and the parameters are transmitted to the upper deviation correcting plate 15 and the lower deviation correcting plate 9 through the circuit.
The upper deviation correcting plate 15 is arranged on the upper part of the outer side of the frame 2, the lower deviation correcting plate 9 is arranged on the lower part of the outer side of the frame 2, the lower deviation correcting plate is composed of a steel plate and a hydraulic device, the hydraulic device can drive the steel plate to move, the hydraulic device receives the motion data of the gyroscope, the steel plate is pushed to move a specified distance, and the steel plate is supported to two sides to be contacted with the groove wall when the working device works, so that deviation correction is realized by changing the posture of the working device.
The hydraulic pump station 14 is arranged at the upper part of the frame 2 and provides a pressure source for hydraulic equipment on the working device; the hanging device 19 is arranged above the frame 2 and is used for hanging the frame 2 by the host machine for operation; the water sand supply device of the working device is positioned on the main machine of the two-wheel slot milling machine and is used for providing water and abrasive materials for the working device.
On the arrangement of high-pressure water jet nozzles on a milling wheel, a group of high-pressure water jet nozzles are arranged at the edge, so that the milling precision can be greatly improved, and the water jet cutting precision is greatly higher than the milling precision of the cooperation of mechanical milling teeth and a scraper.
According to the application, the pre-grooving is carried out on the milling surface through the hydraulic-mechanical combined rock breaking, cracks are generated after preliminary destruction, and then the milling force of milling teeth is reduced through milling of the milling teeth, so that the rock breaking time is shortened, and the rock breaking difficulty is reduced.
Therefore, compared with the traditional double-wheel slot milling machine, the hydraulic-mechanical combined rock-breaking underground continuous slot construction method and the double-wheel slot milling machine milling wheel and the working device thereof have the advantages of higher rock-breaking efficiency, lower energy consumption, lower abrasion, higher precision and better quality.
In order to better explain the advantages of the hydraulic-mechanical combined rock breaking underground continuous groove construction method, the double-wheel groove milling machine milling wheel and the working device thereof and the prior art, the two technical schemes are compared by a worker, and the comparison results are shown in the following table:
as can be seen from the table, compared with the traditional mechanical rock-breaking double-wheel slot milling machine, the hydraulic mechanical combined rock-breaking double-wheel slot milling machine has the advantages of higher rock-breaking efficiency, smaller rock-breaking energy consumption and smaller cutter head loss rate.
While the foregoing is directed to embodiments of the present application, other and further details of the application may be had by the present application, it should be understood that the foregoing description is merely illustrative of the present application and that no limitations are intended to the scope of the application, except insofar as modifications, equivalents, improvements or modifications are within the spirit and principles of the application.
Claims (8)
1. A hydraulic-mechanical combined rock breaking and milling wheel, comprising: the milling machine comprises a milling wheel main body, a plurality of milling teeth, a milling wheel main shaft and a high-pressure water jet device, wherein the milling teeth are fixed on the circumference of the milling wheel main body; the milling wheel main shaft drives the milling wheel main body to rotate through a milling wheel driving mechanism, wherein,
the high-pressure water jet device comprises: a spray head controller, a plurality of edge cutting spray heads, a plurality of rock breaking spray heads and a fixing part,
the spray head controller is fixed in the through hole of the milling wheel spindle and synchronously rotates with the milling wheel spindle;
the edge cutting spray head and the rock breaking spray head are respectively fixed on the milling wheel main body through the fixing parts; the plurality of edge cutting spray heads are annularly arranged on two sides of the milling wheel main body; the rock breaking spray heads are respectively arranged between two adjacent milling teeth at intervals;
the trimming spray head and the rock breaking spray head are respectively communicated with the spray head controller through a water sand guide pipe;
the head controller includes: a hollow cylindrical shell and a baffle plate,
a cylindrical cavity is formed in the shell, a water flow inlet is formed in the axis position of one end of the shell, and a plurality of water flow outlets are formed in the circumferential position of the shell;
the baffle is the rest part of the cylinder with the outer diameter corresponding to the diameter of the cylindrical cavity and cut by a plane parallel to the axis;
the water flow inlet is fixedly connected with a water sand pipeline through a controller interface; the controller interface is fixedly connected with the baffle plate; the water sand pipeline is communicated with a water sand supply device;
the trimming spray head and the rock breaking spray head are respectively connected with the water outflow openings at corresponding positions on the shell through water sand pipes;
the baffle plate is arranged in the cylindrical cavity of the shell, the baffle plate and the shell form a revolute pair, and in the rotating process of the shell, the curved outer wall of the baffle plate is always tightly attached to the inner wall of the shell so as to shield the water outflow opening corresponding to the curved outer wall of the baffle plate;
the milling teeth are arranged in a sine function curve shape on the circumference of the milling wheel main body; each rock breaking spray head is arranged at the midpoint of two adjacent milling tooth connecting lines.
2. The utility model provides a hydraulic machinery jointly breaks rock double round slot milling machine which characterized in that includes: the hydraulic machinery combined rock breaking milling wheel, the frame, the slurry transferring mechanism, the milling wheel driving mechanism, the deviation correcting mechanism and the water sand supplying device of claim 1,
the hydraulic machinery combined rock breaking milling wheel, the slurry transferring system, the milling wheel driving system, the deviation correcting system and the water sand supply device are all arranged on the frame;
the mud transfer system is used for sucking mud generated by rock breaking and transferring the mud to the ground;
the milling wheel driving system is used for driving the milling wheel main body to rotate;
the deviation correcting mechanism is used for adjusting the milling angle of the hydraulic machinery combined rock breaking milling wheel;
the water sand supply device is used for supplying high-pressure water sand to the hydraulic machinery combined rock breaking and milling wheel.
3. The hydromechanical combined rock breaking double wheel slot milling machine of claim 2, wherein the slurry transfer mechanism comprises: a slurry suction pipe, a slurry pump and a slurry pipe, wherein,
the pulp suction pipe is arranged at the lower part of the frame, and the lowest end of the pulp suction pipe is higher than the highest point of high-pressure water jet ejected by the high-pressure water jet device;
the slurry pump is arranged in the frame, the lower slurry suction port of the slurry pump is connected with the slurry suction pipe, and the upper slurry outlet of the slurry pump is connected with the slurry pipe;
the end of the mud pipe extends to the surface.
4. The hydromechanical combined rock breaking double-wheel slot milling machine of claim 2, wherein the milling wheel driving mechanism comprises: the motor and the transmission part are arranged, the output end of the motor is connected with the transmission part, the transmission part is connected with the milling wheel spindle, and the motor drives the milling wheel spindle to rotate through the transmission part.
5. The hydromechanical combined rock breaking double-wheel slot milling machine of claim 2, wherein the deviation correcting system comprises: an upper deviation correcting plate, a lower deviation correcting plate, a gyroscope and a controller,
the gyroscope is arranged at the lower part of the frame and is electrically connected with the controller, and the gyroscope transmits the perceived working gesture data of the hydraulic machinery combined rock breaking double-wheel slot milling machine to the controller;
the controller is electrically connected with the upper deviation correcting plate and the lower deviation correcting plate; the controller converts the working gesture data into an upper deviation correcting plate action signal and a lower deviation correcting plate action signal;
the controller transmits the action signal of the upper deviation correcting plate to the upper deviation correcting plate so as to control the upper deviation correcting plate to move, and simultaneously, the controller transmits the action signal of the lower deviation correcting plate to the lower deviation correcting plate so as to control the lower deviation correcting plate to move, so that the hydraulic machinery combined rock breaking double-wheel slot milling machine is adjusted to a set milling angle.
6. The hydraulic-mechanical combined rock breaking double-wheel slot milling machine according to claim 2, wherein the water sand supply device comprises: a water bin, a sand bin, a water supply pipeline, a sand supply pipeline, a grinding material storage tank, a high-pressure pump and a pressure compensator,
one end of the water supply pipeline is connected with the water bin, and the other end of the water supply pipeline is connected with the high-pressure pump;
one end of the sand supply pipeline is connected with the sand bin, and the other end of the sand supply pipeline is connected with the storage and grinding tank;
the abrasive storage tank is fixed on the frame and is connected with the input end of the high-pressure pump;
the high-pressure pump is fixed on the frame, and the output end of the high-pressure pump is connected with the pressure compensator through a water sand pipeline;
the pressure compensator is communicated with the spray head controller through a water sand pipeline.
7. A grooving construction method of the hydraulic machinery combined rock breaking double-wheel groove milling machine as claimed in any one of claims 2 to 6, which is characterized by comprising the following steps:
step one: installing the hydraulic mechanical combined rock breaking milling wheel, and aligning the hydraulic mechanical combined rock breaking milling wheel to a guide groove;
step two: starting the hydraulic mechanical combined rock-breaking double-wheel slot milling machine, rotating and milling the rock by the hydraulic mechanical combined rock-breaking milling wheel, and simultaneously, pumping out the slurry by the slurry transfer mechanism to enable the hydraulic mechanical combined rock-breaking double-wheel slot milling machine to mill downwards by one stroke;
step three: repeating the second step until the operation point reaches the designated depth, and lifting the hydraulic machinery combined rock breaking double-wheel slot milling machine;
step four: and translating the hydraulic machinery combined rock breaking double-wheel slot milling machine to a next operation point, and repeating the first, second and third steps to continue milling operation until the underground diaphragm wall slot forming construction is completed.
8. The grooving construction method of the hydraulic machinery combined rock breaking double-wheel grooving machine according to claim 7, wherein the second step is specifically:
the hydraulic mechanical combined rock breaking double-wheel slot milling machine slowly enters a guide slot, and when the hydraulic mechanical combined rock breaking milling wheel is about to contact a rock stratum, the milling wheel driving mechanism and the high-pressure water jet device are started;
the hydraulic machinery is combined with a rock breaking milling wheel to generate a water knife which rotates along with the milling wheel main body, and the water knife cuts a plurality of hydraulic cutting grooves in a rock stratum in advance;
the milling teeth perform milling operation on the rock stratum with the hydraulic grooving, so that the rock mass is damaged;
the detached rock mass is sucked by the slurry transferring mechanism and then conveyed to the ground.
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| CN114086618B (en) * | 2022-01-21 | 2022-05-10 | 北京建工土木工程有限公司 | Modularization milling flutes device of wall construction is even gone on underground |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007014473A1 (en) * | 2007-03-22 | 2008-09-25 | Dynapac Gmbh | Highway cutter with an undercarriage having separate drive, rotating cutting roller and liquid spraying chamber useful in application of coatings to roadways greatly decreases dust formation during operation |
| CN110821510A (en) * | 2019-10-25 | 2020-02-21 | 中国科学院武汉岩土力学研究所 | High-pressure water jet edge cutter and combined rock breaking and trapped-freeing TBM cutter head and method thereof |
| CN110847926A (en) * | 2019-10-25 | 2020-02-28 | 中国科学院武汉岩土力学研究所 | Hydraulic cutting tool module and combined rock breaking TBM device and method |
| CN212670684U (en) * | 2020-06-24 | 2021-03-09 | 中国科学院武汉岩土力学研究所 | Hydraulic mechanical combined rock breaking milling wheel and double-wheel slot milling machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013013304A1 (en) * | 2013-08-12 | 2015-02-12 | Wirtgen Gmbh | Self-propelled construction machine for machining lanes or ground surfaces and method for cooling the milling tools of a milling drum of a self-propelled construction machine |
-
2020
- 2020-06-24 CN CN202010592011.9A patent/CN111622289B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007014473A1 (en) * | 2007-03-22 | 2008-09-25 | Dynapac Gmbh | Highway cutter with an undercarriage having separate drive, rotating cutting roller and liquid spraying chamber useful in application of coatings to roadways greatly decreases dust formation during operation |
| CN110821510A (en) * | 2019-10-25 | 2020-02-21 | 中国科学院武汉岩土力学研究所 | High-pressure water jet edge cutter and combined rock breaking and trapped-freeing TBM cutter head and method thereof |
| CN110847926A (en) * | 2019-10-25 | 2020-02-28 | 中国科学院武汉岩土力学研究所 | Hydraulic cutting tool module and combined rock breaking TBM device and method |
| CN212670684U (en) * | 2020-06-24 | 2021-03-09 | 中国科学院武汉岩土力学研究所 | Hydraulic mechanical combined rock breaking milling wheel and double-wheel slot milling machine |
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