CN111622289A - Hydraulic mechanical combined rock breaking milling wheel, double-wheel slot milling machine and grooving construction method thereof - Google Patents
Hydraulic mechanical combined rock breaking milling wheel, double-wheel slot milling machine and grooving construction method thereof Download PDFInfo
- Publication number
- CN111622289A CN111622289A CN202010592011.9A CN202010592011A CN111622289A CN 111622289 A CN111622289 A CN 111622289A CN 202010592011 A CN202010592011 A CN 202010592011A CN 111622289 A CN111622289 A CN 111622289A
- Authority
- CN
- China
- Prior art keywords
- milling
- rock breaking
- wheel
- hydraulic
- milling wheel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The invention relates to a hydraulic mechanical combined rock breaking milling wheel, a double-wheel slot milling machine and a grooving 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 plurality of milling teeth are fixed on the circumference of the milling wheel main body; the milling wheel main shaft passes through milling wheel actuating mechanism and drives the milling wheel main part and rotate, and high pressure water jet device includes: the device comprises a nozzle controller, a plurality of trimming nozzles, a plurality of rock breaking nozzles and a fixing component, wherein the nozzle 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 fixed on the milling wheel main body through fixing parts respectively. The double-wheel slot milling machine and the slot forming construction method thereof enable the rock breaking efficiency and the rock breaking effect to be 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 invention relates to the technical field of underground engineering, in particular to a hydraulic mechanical 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 concealed technology. The underground continuous wall is integrally cast for the wall body, and has the advantages of large structural rigidity, good integrity, good anti-seepage performance, high durability, small influence on surrounding foundation structures and buildings and wide applicable strata. 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 diaphragm walls, and milling broken rocks by using a milling wheel and then discharging slag through reverse circulation to form required slots.
The milling wheel and the working device of the slot milling machine are used as direct construction parts of the slot milling machine and determine the construction efficiency. During construction, hard rock formations are often encountered, resulting in a loss of efficiency of the slot milling machine and a severe loss of life of the milling teeth. When the geological condition changes during construction, the milling wheel and the milling wheel main machine need to be frequently replaced, and a large amount of time is wasted due to frequent replacement and movement of the milling wheel and the main machine, so that the construction efficiency is low.
The existing double-wheel slot milling machine is used for mechanical rock breaking, the tunneling efficiency is low when the tunneling mode meets a hard rock stratum, and huge loss is caused to the service life of the milling teeth.
Disclosure of Invention
The application provides a hydraulic machinery combined rock breaking milling wheel, a double-wheel slot milling machine and a grooving construction method thereof, solves the technical problems that in the prior art, when hard rock layers are encountered, the working efficiency of the slot milling machine is reduced and the service life of milling teeth is seriously lost, and realizes that the rock breaking efficiency and the rock breaking effect are both improved to a certain extent compared with the traditional mechanical rock breaking mode, the abrasion of a cutter is small, the construction efficiency is favorably improved, and the construction cost is reduced.
The application provides a rock breaking cutterhead is united to hydraulic machine includes: the milling cutter comprises a milling cutter main body, a plurality of milling teeth, a milling cutter main shaft and a high-pressure water jet device, wherein the plurality of milling teeth are fixed on the circumference of the milling cutter 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 nozzle controller, a plurality of trimming nozzles, a plurality of rock breaking nozzles and a fixing component,
the nozzle 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 part; the plurality of trimming nozzles are annularly arranged on two sides of the milling wheel main body; the rock breaking nozzles 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 arranged in the shell, a water inlet is formed in the axis position of one end of the shell, and a plurality of water outlets are formed in the circumferential position of the shell;
the baffle plate is the residual part of a 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 the water sand supply device;
the edge cutting spray head and the rock breaking spray head are respectively connected with the water flow outlets at corresponding positions on the shell through water sand guide pipes;
wherein, the separation blade sets up in the cylindrical cavity of shell, the separation blade with the revolute pair is constituteed to the shell, the rotatory in-process of shell, the curved surface outer wall of separation blade pastes tightly all the time the inner wall of shell, in order to shelter from the separation blade curved surface outer wall corresponds the rivers export.
Preferably, a plurality of the milling teeth are arranged in a sine function curve shape on the circumference of the milling wheel main body; and each rock breaking spray head is arranged at the midpoint position of the connecting line of two adjacent milling teeth.
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 transfer mechanism, a milling wheel driving mechanism, a deviation rectifying mechanism and a water sand supply device,
the hydraulic mechanical combined rock breaking and milling wheel, the slurry transfer system, the milling wheel driving system, the deviation rectifying system and the water sand supply device are all arranged on the rack;
the mud transfer system is used for absorbing 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 mechanical combined rock breaking milling wheel;
the water sand supply device is used for providing high-pressure water sand to the hydraulic machinery combined rock breaking milling wheel.
Preferably, the slurry transfer mechanism comprises: a slurry suction pipe, a slurry pump and a slurry pipe, wherein,
the slurry suction pipe is arranged at the lower part of the rack, and the lowest end of the slurry suction pipe is higher than the highest point of the high-pressure water jet ejected by the high-pressure water jet device;
the mud pump is arranged in the frame, the lower mud suction port of the mud pump is connected with the mud suction pipe, and the upper mud outlet of the mud pump is connected with the mud pipe;
the ends of the mud pipe extend to the surface.
Preferably, the mill wheel driving mechanism includes: the output end of the motor is connected with the transmission component, the transmission component is connected with the milling wheel spindle, and the motor drives the milling wheel spindle to rotate through the transmission component.
Preferably, the deviation correcting system includes: 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 rack and is electrically connected with the controller, and the gyroscope transmits the sensed working attitude data of the hydraulic mechanical 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 attitude data into an upper deviation correcting plate action signal and a lower deviation correcting plate action signal;
the controller transmits the upper deviation correcting plate action signal to the upper deviation correcting plate to control the upper deviation correcting plate to move, and simultaneously, the controller transmits the lower deviation correcting plate action signal to the lower deviation correcting plate to control the lower deviation correcting plate to move, so that the hydraulic mechanical 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 abrasive storage 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 rack, 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 mechanical combined rock breaking double-wheel groove milling machine, which comprises the following steps:
the method comprises the following steps: installing the hydraulic mechanical combined rock breaking milling wheel, and aligning the hydraulic mechanical combined rock breaking milling wheel with a guide groove;
step two: starting the hydraulic mechanical combined rock breaking double-wheel slot milling machine, wherein the hydraulic mechanical combined rock breaking slot milling machine rotates to mill rocks, and simultaneously, the slurry transfer mechanism extracts slurry to enable the hydraulic mechanical combined rock breaking double-wheel slot milling machine to mill downwards for one stroke;
step three: repeating the second step until the operation point reaches the designated depth, and lifting the hydraulic mechanical combined rock breaking double-wheel slot milling machine;
step four: and (4) horizontally moving the hydraulic mechanical combined rock breaking double-wheel slot milling machine to the next operation point, and repeating the first step, the second step and the third step to continue milling operation until the grooving construction of the underground continuous wall is completed.
Preferably, the second step is specifically:
the hydraulic mechanical combined rock breaking double-wheel slot milling machine slowly enters the guide groove, and when the hydraulic mechanical combined rock breaking milling wheel is about to contact with a rock stratum, the milling wheel driving mechanism and the high-pressure water jet device are started;
a water jet generated by the hydraulic mechanical combined rock breaking milling wheel rotates along with the milling wheel main body, and a plurality of hydraulic cutting grooves are pre-cut on a rock stratum by the water jet;
the milling teeth perform milling operation on a rock stratum with a hydraulic cutting groove, so that a rock body is damaged;
and the fallen rock blocks are sucked by the slurry transfer mechanism and then conveyed to the ground.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
the high-pressure water jet device of the hydraulic mechanical combined rock breaking milling wheel can work according to a preset mode, and hydraulic cutting grooves are cut on a rock stratum before milling teeth impact the rock stratum, so that hydraulic-mechanical combined rock breaking is realized, and compared with the traditional mechanical rock breaking effect, the hydraulic mechanical combined rock breaking wheel is good in effect, high in efficiency and low in energy consumption; the double-wheel slot milling machine can well break rocks to a greater extent when the same rocks are broken, the impact force and the tooth-milling penetration degree required by the 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 tooth-milling abrasion are reduced; water sprayed by the high-pressure water jet is directly mixed with crushed rocks and pumped out by a slurry pump, and an additional water pump is not needed to be used for injecting water into the milling groove; like this, having solved and having met hard rock stratum among the prior art, the slot milling machine work efficiency descends and the serious technical problem who loses the milling teeth life-span, has realized that broken rock efficiency and broken rock effect all compare in the broken rock mode of traditional machinery have certain promotion, and the wearing and tearing of cutter are less, are favorable to improving the efficiency of construction, reduce construction cost's technological effect.
Drawings
Fig. 1 is a front view of a hydraulic mechanical combined rock breaking double-wheel slot milling machine provided by the embodiment of the application;
fig. 2 is a side view of a hydraulic mechanical combined rock breaking double-wheel slot milling machine provided by the embodiment of the application;
FIG. 3 is a front view of a combined rock breaking and milling wheel of a hydraulic machine provided by an embodiment of the application;
FIG. 4 is a side view of a hydraulic mechanical combined rock breaking cutterhead provided by an embodiment of the present application;
fig. 5 is a schematic assembly diagram of a high-pressure water jet device and a nozzle controller in a hydraulic mechanical combined rock breaking and milling wheel provided by the embodiment of the application;
FIG. 6 is a rock breaking schematic diagram for grooving construction of the underground diaphragm wall by combining hydraulic machinery and rock breaking provided by the embodiment of the 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 in the embodiment of the present application;
fig. 8 is a schematic structural diagram of a nozzle controller of a hydraulic mechanical combined rock breaking and milling wheel provided by an embodiment of the application;
fig. 9 is a schematic structural diagram of a blocking plate of the nozzle head controller according to an embodiment of the present application.
In the figure:
1-hydraulic mechanical combined rock breaking milling wheel, 1.1-milling teeth, 1.2-milling wheel main body, 1.3-milling wheel main shaft, 2-frame, 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 outlet, 4.4-controller interface, 5-water sand pipeline, 6-scraper, 7-pressure compensator, 8-motor, 9-lower deviation correcting plate, 10-slurry pump, 10.1-slurry suction pipe, 11-controller, 12-high pressure pump, 13-abrasive storage tank, 14-hydraulic pump station, 15-upper deviation correcting plate, 16-slurry pipe, 17-electric box, 18-pipeline bundle, 18.1-pipeline interface, 19-suspension device, 20-guide groove, 21-milling surface and 22-hydraulic grooving.
Detailed Description
To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
Referring to the attached drawings 1-9, the hydraulic mechanical combined rock-breaking underground continuous wall grooving construction method provided by the application comprises the following steps:
the method comprises the following steps: 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 slot milling machine (working device) to fall to a position which is about 10 cm away from a milling surface 21; the structure of the milling teeth 1.1 on the milling wheel has enough strength and rigidity, and can bear the reaction force and the shearing stress generated by impacting the milling surface 21 rock during milling; the pressure of the high pressure water jet is sufficient to cut a hydraulic slot 22 in the rock mass.
Step two: and starting the combined rock breaking double-wheel slot milling machine, driving a milling wheel motor 8 to rotate the milling wheel to mill the rock, and pumping out the slurry by a slurry pump 10 to enable the working device to mill 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 twisted rope and the deviation-correcting plate fix the position of the working device, and the working device gradually moves downwards under the dead weight of the working device along with the crushing of rocks and the transportation of mud.
During rock breaking, the high-pressure water jet device 3 jets high-pressure water flow along with the rotation of the milling wheel main body 1.2, and before the milling teeth 1.1 contact the milling surface 21, hydraulic grooves 22 are formed in the milling surface 21 in a cutting mode, namely, when the high-pressure water jet device 3 works, hydraulic pre-cracks are formed in the milling surface between every two adjacent milling teeth 1.1 (as shown in fig. 6).
Then the milling teeth 1.1 impact the milling surface 21 by the rotation of the milling wheel, so that the rock mass is destroyed and is milled into rock slag from the milling surface 21.
The rock slag and the water flow sprayed by the high-pressure water jet device 3 are mixed into slurry, the slurry is sucked out from the slurry suction pipe 10.1 by the pressure provided by the slurry pump 10 and is transported to the ground through the slurry pipe 16, and after one milling cycle is finished, the working device is moved downwards by releasing the stranded rope to carry out the next milling cycle.
Step three: and repeating the second step until the working point reaches the specified depth, and then retracting the twisted rope to lift the working device.
Step four: and (4) translating the working device to the next working point, and repeating the first step, the second step and the third step to continue the milling operation.
Further, in the second step, the milling teeth 1.1 and the high-pressure water jet device 3 rotate simultaneously with the milling wheel main body 1.2, and the rock body 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 installed inside the milling wheel spindle, the high-pressure water jet nozzle controller 4 is used for realizing the rotation of a water cutter, 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 rotates synchronously with the milling wheel spindle 1.3, a blocking piece 4.1 is connected with the water sand pipeline 5 and keeps static during rotation, and the upper part of the water sand pipeline 5 is connected with a pressure compensator 7 to provide a high-; 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 flow outlets 4.3 on the shell 4.2 of the high-pressure water jet controller 4 correspond to the fixing devices 3.2 of the high-pressure water jet device 3 one by one to realize synchronous rotation; the rivers and the sand supply of equipment are supplied by the sump and the sand storehouse on the host computer, the high-pressure pump 12 that water sand transported on equipment through the pipeline pressurizes, pressure is decided by rock or soil body hardness during the construction, through large-traffic water sand pipeline 5 after the water sand pressurization, transport high pressure water jet pressure compensator 7, compensate the pressure that transports the loss in the pipeline, mix high pressure rivers and sand simultaneously and pour into water sand pipeline 5 into, transport to high pressure water jet shower nozzle controller 4.
In the tunneling process, the deviation correcting controller 11 and the sensor (gyroscope) sense the posture of the working device constantly, the gyroscope inside the deviation correcting controller collects the working posture of the working device in real time, the posture is converted into action data of the upper deviation correcting plate 15 and the lower deviation correcting plate 9 through the single chip microcomputer inside the deviation correcting controller, 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 FIGS. 1-5, it can be seen that: the adopted hydraulic mechanical 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 formed by connecting the central points of the milling teeth 1.1 is a function image shape of a sine function y which is sin ω x, 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 for cutting edges is arranged on the side surface of the milling wheel main body 1.2, and the rock breaking nozzle 3.1 for milling 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 guide pipe 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 nozzles 3.1 on the milling wheel main body 1.2 are periodically arranged; the high-pressure water jet nozzles 3.1 work in sequence according to the design of the high-pressure water jet nozzle controller 4, and hydraulic cutting grooves 22 are cut on the milling surface 21 before the milling cutter contacts the milling surface 21 in advance, so that the aim of hydraulic-mechanical combined rock breaking is fulfilled.
The high-pressure water jet nozzle 3.1 is connected with a nozzle controller 4 by using a hard pressure pipe fitting (a water sand guide pipe 3.3) made of metal, the arrangement mode of the high-pressure water jet nozzle is divided into an edge cutting nozzle group and a rock breaking nozzle group, the edge cutting nozzle group is arranged at the edge of the milling wheel and is responsible for cutting the edge of the groove, and the rock breaking nozzle group is arranged at the middle point of a milling tooth connecting line and is responsible for pre-grooving of rock breaking.
The head controller 4 includes: a baffle 4.1, a shell 4.2, a water outlet 4.3 and a controller interface 4.4; the high-pressure water jet flow controller 4 is arranged in the milling wheel main shaft 1.3 and synchronously rotates with the milling wheel main shaft; the baffle 4.1 and the controller interface 4.4 are rigidly connected into a whole by 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 the water flow sent out by the water sand pipeline 5 to enter the shell 4.2.
When the shell 4.2 rotates, when the water outlet 4.3 on the shell 4.2 is positioned in the shielding range of the blocking piece 4.1, no water flows through the water outlet, the corresponding high-pressure water jet nozzle 3.1 does not spray high-pressure water flow, at the moment, water flows do not pass through the water outlet 4.3 in the shielding range of the blocking piece 4.1, and the corresponding high-pressure water jet nozzle 3.1 sprays high-pressure water flow, so that the effect of controlling water flow is achieved, and only the water jet nozzle 3.1 positioned below the milling wheel is allowed to work at any moment, so that the high-pressure water jet is prevented from being damaged and the body thereof (the structure of the nozzle controller is shown in detail.
The two pairs of milling wheels of the combined rock breaking double-wheel slot milling machine are four in total, each pair of milling wheels are connected through a milling wheel spindle 1.3, and the milling wheel spindle 1.3 is driven to rotate through a milling wheel motor 8, so that the milling wheels rotate.
Referring to figures 1 and 2 of the drawings: the hydraulic-mechanical combined rock breaking double-wheel slot milling machine comprises two milling wheels, a frame 2, a large-flow water sand pipeline 5, a scraper 6, a pressure compensator 7, a milling wheel motor 8, a lower deviation rectifying 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 rectifying 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 working device is made of steel structures, U-shaped steel or I-shaped steel is used for manufacturing, the inside of the working device is divided into a multi-layer structure through steel plates and used for installing each device in the working device, and a triangular I-shaped steel beam is installed inside the working device and used for improving the stability and the 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, is positioned outside the milling wheel and is used for being matched with the high-pressure water jet nozzle 3.1 to process the side surface of the milling groove.
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 arranged above the working device and is used for connecting various pipelines.
An electric box 17 is fixed to one side of the housing 2 for distribution of the working device and control of various devices.
The high-pressure pump 12 is installed and fixed in the frame 2, is internally provided with a centrifugal pump and a control circuit and provides high-pressure water for the high-pressure water jet device 3; the high-pressure pump 12 can adjust the water pressure and the flow rate through a control circuit to adapt to different working conditions, and can reduce the pressure and the flow rate when the rock is soft 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; an abrasive storage tank 13 is installed at one side of the high-pressure pump 12 for storing the sand abrasive.
The pressure compensator 7 is arranged below the frame 2 and above the milling wheel, and the inlet of the pressure compensator is connected with the high-pressure pump 12 through a pipeline, so that the pressure loss in the pipeline is compensated, the grinding materials are mixed with high-pressure water flow, and the cutting capacity of the high-pressure water jet is improved.
The milling wheel motor 8 is arranged below the frame 2, is a power source of the milling wheel, generates power and drives the milling wheel main shaft 1.3 to rotate through a transmission part, so that the milling wheel is driven to work.
The slurry suction pipe 10.1 is arranged at the lower side of the frame 2, is positioned between the two milling wheel sets and is used for sucking a slurry mixture formed by mixing the milled rock debris and water; the mud pump 10 is arranged on the frame 2 and used for providing negative pressure, sucking the mud mixture up through a mud pipe 10.1 and pumping the mud mixture to the ground; 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 installed in the middle of the frame 2, and the inside of the deviation correcting system comprises a gyroscope and a single chip microcomputer, the gyroscope is used for sensing attitude data of the working device, the gyroscope transmits the sensed attitude data to the single chip microcomputer through a circuit, the single chip microcomputer processes the data through a preset program to calculate parameters of required movement of each deviation correcting plate, 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 installed on the upper portion of the outer side of the frame 2, the lower deviation correcting plate 9 is installed on the lower portion of the outer side of the frame 2 and is composed of a steel plate and a hydraulic device, the hydraulic device can drive the steel plate to move, the hydraulic device receives movement data of the gyroscope and pushes the steel plate to move for a specified distance, and the steel plate is supported to two sides to be in contact with the groove wall when the working device works so as to realize deviation correction in a mode of changing the posture of the working device.
The hydraulic pump station 14 is arranged on the upper part of the frame 2 and provides a pressure source for hydraulic equipment on the working device; the suspension device 19 is arranged above the frame 2 and is used for suspending the frame 2 by the main machine for operation; the water and sand supply device of the working device is positioned on a main machine of the double-wheel slot milling machine and is used for supplying water and grinding materials to the working device.
The arrangement of the high-pressure water jet nozzles on the milling wheel and the arrangement of a group of high-pressure water jet nozzles on the edge can greatly improve the milling precision, and the cutting precision of the water jet cutter is greatly higher than the milling precision of the matching of mechanical milling teeth and a scraper.
This application is through the combined rock breaking of water conservancy-machinery grooving in advance on milling the face, has had the crack to produce after preliminary destruction, mills of tooth again, and the milling force that mills the tooth reduces, and the rock breaking time shortens, and the rock breaking degree of difficulty reduces.
Therefore, compared with the traditional double-wheel slot milling machine, the hydraulic-mechanical combined rock breaking underground continuous slot construction method, the double-wheel slot milling machine milling wheel and the working device thereof have the advantages of higher rock breaking efficiency, lower energy consumption, smaller wear, higher precision and better quality.
In order to better illustrate the advantages of the hydraulic-mechanical combined rock breaking underground continuous groove construction method, the milling wheel of the double-wheel slot milling machine and the working device thereof and the prior art, workers compare the two technical schemes, and the comparison result is shown in the following table:
according to the upper table, the hydraulic mechanical combined rock breaking double-wheel slot milling machine is higher in rock breaking efficiency, lower in rock breaking energy consumption and lower in cutter head loss rate compared with a traditional mechanical rock breaking double-wheel slot milling machine.
The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only illustrative of the present invention and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A combined rock breaking and milling wheel for hydraulic machinery is characterized by comprising: the milling cutter comprises a milling cutter main body, a plurality of milling teeth, a milling cutter main shaft and a high-pressure water jet device, wherein the plurality of milling teeth are fixed on the circumference of the milling cutter 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 includes: a nozzle controller, a plurality of trimming nozzles, a plurality of rock breaking nozzles and a fixing component,
the nozzle 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 part; the plurality of trimming nozzles are annularly arranged on two sides of the milling wheel main body; the rock breaking nozzles 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.
2. The hydromechanical integrated rock breaking cutterhead of claim 1, wherein the jet controller includes: a hollow cylindrical shell and a baffle plate,
a cylindrical cavity is arranged in the shell, a water inlet is formed in the axis position of one end of the shell, and a plurality of water outlets are formed in the circumferential position of the shell;
the baffle plate is the residual part of a 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 the water sand supply device;
the edge cutting spray head and the rock breaking spray head are respectively connected with the water flow outlets at corresponding positions on the shell through water sand guide pipes;
wherein, the separation blade sets up in the cylindrical cavity of shell, the separation blade with the revolute pair is constituteed to the shell, the rotatory in-process of shell, the curved surface outer wall of separation blade pastes tightly all the time the inner wall of shell, in order to shelter from the separation blade curved surface outer wall corresponds the rivers export.
3. The hydromechanical combination rock breaking cutterhead of claim 1, wherein a plurality of said cutting teeth are arranged in a sinusoidal pattern about the circumference of the cutterhead body; and each rock breaking spray head is arranged at the midpoint position of the connecting line of two adjacent milling teeth.
4. The utility model provides a hydraulic machinery unites broken rock double round slotter which characterized in that includes: the hydraulic mechanical combined rock breaking and milling wheel, the frame, the slurry transfer mechanism, the milling wheel driving mechanism, the deviation rectifying mechanism and the water sand supply device as claimed in any one of claims 1 to 3,
the hydraulic mechanical combined rock breaking and milling wheel, the slurry transfer system, the milling wheel driving system, the deviation rectifying system and the water sand supply device are all arranged on the rack;
the mud transfer system is used for absorbing 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 mechanical combined rock breaking milling wheel;
the water sand supply device is used for providing high-pressure water sand to the hydraulic machinery combined rock breaking milling wheel.
5. A hydraulic-mechanical combination rock breaking two-wheel slot milling machine as claimed in claim 4, wherein the mud transfer mechanism comprises: a slurry suction pipe, a slurry pump and a slurry pipe, wherein,
the slurry suction pipe is arranged at the lower part of the rack, and the lowest end of the slurry suction pipe is higher than the highest point of the high-pressure water jet ejected by the high-pressure water jet device;
the mud pump is arranged in the frame, the lower mud suction port of the mud pump is connected with the mud suction pipe, and the upper mud outlet of the mud pump is connected with the mud pipe;
the ends of the mud pipe extend to the surface.
6. A hydraulic-mechanical combined rock-breaking double-wheel slot milling machine as claimed in claim 4, wherein the cutter wheel driving mechanism comprises: the output end of the motor is connected with the transmission component, the transmission component is connected with the milling wheel spindle, and the motor drives the milling wheel spindle to rotate through the transmission component.
7. A hydraulic-mechanical combined rock breaking double-wheel slot milling machine as claimed in claim 4, wherein said 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 rack and is electrically connected with the controller, and the gyroscope transmits the sensed working attitude data of the hydraulic mechanical 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 attitude data into an upper deviation correcting plate action signal and a lower deviation correcting plate action signal;
the controller transmits the upper deviation correcting plate action signal to the upper deviation correcting plate to control the upper deviation correcting plate to move, and simultaneously, the controller transmits the lower deviation correcting plate action signal to the lower deviation correcting plate to control the lower deviation correcting plate to move, so that the hydraulic mechanical combined rock breaking double-wheel slot milling machine is adjusted to a set milling angle.
8. A hydraulic-mechanical combined rock breaking double-wheel slot milling machine as claimed in claim 4, wherein said 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 abrasive storage 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 rack, 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.
9. A grooving construction method of a hydraulic mechanical combined rock breaking double-wheel groove milling machine as claimed in any one of claims 4 to 8 is characterized by comprising the following steps:
the method comprises the following steps: installing the hydraulic mechanical combined rock breaking milling wheel, and aligning the hydraulic mechanical combined rock breaking milling wheel with a guide groove;
step two: starting the hydraulic mechanical combined rock breaking double-wheel slot milling machine, wherein the hydraulic mechanical combined rock breaking slot milling machine rotates to mill rocks, and simultaneously, the slurry transfer mechanism extracts slurry to enable the hydraulic mechanical combined rock breaking double-wheel slot milling machine to mill downwards for one stroke;
step three: repeating the second step until the operation point reaches the designated depth, and lifting the hydraulic mechanical combined rock breaking double-wheel slot milling machine;
step four: and (4) horizontally moving the hydraulic mechanical combined rock breaking double-wheel slot milling machine to the next operation point, and repeating the first step, the second step and the third step to continue milling operation until the grooving construction of the underground continuous wall is completed.
10. The grooving construction method of the hydraulic mechanical combined rock breaking double-wheel groove milling machine according to claim 9, wherein the second step is specifically as follows:
the hydraulic mechanical combined rock breaking double-wheel slot milling machine slowly enters the guide groove, and when the hydraulic mechanical combined rock breaking milling wheel is about to contact with a rock stratum, the milling wheel driving mechanism and the high-pressure water jet device are started;
a water jet generated by the hydraulic mechanical combined rock breaking milling wheel rotates along with the milling wheel main body, and a plurality of hydraulic cutting grooves are pre-cut on a rock stratum by the water jet;
the milling teeth perform milling operation on a rock stratum with a hydraulic cutting groove, so that a rock body is damaged;
and the fallen rock blocks are sucked by the slurry transfer mechanism and then conveyed to the ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010592011.9A CN111622289B (en) | 2020-06-24 | 2020-06-24 | Hydraulic mechanical combined rock breaking milling wheel, double-wheel slot milling machine and slot forming construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010592011.9A CN111622289B (en) | 2020-06-24 | 2020-06-24 | Hydraulic mechanical combined rock breaking milling wheel, double-wheel slot milling machine and slot forming construction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111622289A true CN111622289A (en) | 2020-09-04 |
| CN111622289B CN111622289B (en) | 2023-09-01 |
Family
ID=72257573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010592011.9A Active CN111622289B (en) | 2020-06-24 | 2020-06-24 | Hydraulic mechanical combined rock breaking milling wheel, double-wheel slot milling machine and slot forming construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111622289B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114086619A (en) * | 2022-01-21 | 2022-02-25 | 北京建工土木工程有限公司 | Device and method for performing underground diaphragm wall construction by using slot milling machine under low clearance |
| CN114086618A (en) * | 2022-01-21 | 2022-02-25 | 北京建工土木工程有限公司 | Modularization groove milling device for underground diaphragm wall construction |
Citations (5)
| 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 |
| US20150043971A1 (en) * | 2013-08-12 | 2015-02-12 | Wirtgen Gmbh | Self-Propelled Construction Machine For Working Roadways Or Surfaces And Method For Cooling The Milling Tools Of A Milling Drum Of A Self-Propelled Construction Machine |
| 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 |
-
2020
- 2020-06-24 CN CN202010592011.9A patent/CN111622289B/en active Active
Patent Citations (5)
| 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 |
| US20150043971A1 (en) * | 2013-08-12 | 2015-02-12 | Wirtgen Gmbh | Self-Propelled Construction Machine For Working Roadways Or Surfaces And Method For Cooling The Milling Tools Of A Milling Drum Of A Self-Propelled Construction Machine |
| 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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114086619A (en) * | 2022-01-21 | 2022-02-25 | 北京建工土木工程有限公司 | Device and method for performing underground diaphragm wall construction by using slot milling machine under low clearance |
| CN114086618A (en) * | 2022-01-21 | 2022-02-25 | 北京建工土木工程有限公司 | Modularization groove milling device for underground diaphragm wall construction |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111622289B (en) | 2023-09-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212670684U (en) | Hydraulic mechanical combined rock breaking milling wheel and double-wheel slot milling machine | |
| CN111622289A (en) | Hydraulic mechanical combined rock breaking milling wheel, double-wheel slot milling machine and grooving construction method thereof | |
| CN205605209U (en) | Multi -functional coal seam scour protection efflux drilling joint -cutting shower nozzle | |
| CN101713200B (en) | Double-shaft groove forming machine | |
| CN210685990U (en) | Hydraulic-mechanical combined rock breaking TBM cutter head and TBM device thereof | |
| CN211648175U (en) | Hydraulic cutting tool module and hydraulic-mechanical combined rock breaking TBM device | |
| CN111622288A (en) | Hydraulic mechanical combined rock breaking milling wheel and double-wheel slot milling machine | |
| CN115288697B (en) | Shaft full-face heading machine system | |
| CN112392500A (en) | High-strength rock crushing push bench for composite stratum | |
| CN212670685U (en) | Hydraulic mechanical combined rock breaking milling wheel and double-wheel slot milling machine | |
| CN108661566A (en) | A kind of RJP techniques and the general drill bit of MJS techniques and its construction technology | |
| CN110158690A (en) | A kind of milling wheel and two-wheel flute milling machine with combination tooth tooth plate | |
| CN106436796A (en) | Underground continuous wall construction equipment and construction method | |
| CN210195763U (en) | Long-distance rock pipe jacking machine | |
| CN101806074A (en) | Triangular-saw groove forming machine | |
| CN106677224B (en) | The milling wheel brush wall device of pipe fitting is latched for diaphram wall | |
| CN212130439U (en) | Underground hydraulic sand blasting cutting tool | |
| CN211342923U (en) | Hydraulic-mechanical combined rock breaking TBM device | |
| CN110886335B (en) | Block rock mass digs rock-entering construction grooving machine | |
| CN110173209B (en) | Wall connecting machine for building construction | |
| CN112922625B (en) | Large-scale high-pressure water jet automatic deviation rectifying pipe jacking device and construction method | |
| CN106049585B (en) | Roller groove is into wall method and device | |
| CN105316994B (en) | Device is dug in a kind of milling | |
| CN209780893U (en) | Novel balanced jacking equipment of MJS push pipe construction muddy water | |
| CN220151356U (en) | Mud-water balance rock push bench |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |