CN110439580A - Integrated micro development machine pushing tow system and its working method with screw drives - Google Patents
Integrated micro development machine pushing tow system and its working method with screw drives Download PDFInfo
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- CN110439580A CN110439580A CN201910663423.4A CN201910663423A CN110439580A CN 110439580 A CN110439580 A CN 110439580A CN 201910663423 A CN201910663423 A CN 201910663423A CN 110439580 A CN110439580 A CN 110439580A
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- Prior art keywords
- twist bit
- pushing tow
- track base
- oil cylinder
- steel pipe
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/093—Control of the driving shield, e.g. of the hydraulic advancing cylinders
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms
- E21D9/124—Helical conveying means therefor
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a kind of integrated micro development machine pushing tow system and its working method with screw drives, are related to development machine field.The present invention includes track base, propelling cylinder, embedded steel pipe, small-sized hard rock heading end, twist bit, auger stem, promotes apical ring, horizontal bolt oil cylinder, hydraulic wireline winch；The bottom of the frame of twist bit is provided with to be slidably matched sliding bottom with track base；The outside portion of small-sized hard rock heading end is provided with stabilizer；Auger stem is socketed in embedded steel pipe.The present invention is by being a mechanical equipment by the pushing tow system integration, using engine as power source, the power that the power and complete machine for meeting cutterhead rotation simultaneously promote, and the dregs excavated can be discharged using spiral lever apparatus, mud system is eliminated for entire traditional mini-sized tunnelling machine system；Construction cost is reduced, working procedure is simplified, the driving speed of mini-sized tunnelling machine is improved, shortens the construction period.
Description
Technical field
The invention belongs to development machine fields, more particularly to a kind of integrated micro development machine pushing tow system with screw drives
System and a kind of working method of the integrated micro development machine pushing tow system with screw drives.
Background technique
Micro-tunneling below for 2 meters, use at present equipment construction with mini-sized tunnelling machine or for tunnel push-bench
For main representative.The working principle of such development machine is that the rotation of cutterhead is added by the motor or hydraulic motor being mounted in shield body
Gear-box realizes that the advance of development machine needs to realize by oil cylinder propulsion system.The dregs that shovel is dug in front of cutterhead, by not
The disconnected special mud of injection is stirred, then is extracted out dregs and mud by slush pump.
Current most of manufacturers only supply cutterhead and anterior shield system system, but propulsion system and mud system are then by constructing
Fang Zihang is provided.Usual propulsion system includes following equipment: (1) one and the active well that matches with construction begin convenient for equipment
It sends out and pushing tow system is arranged, the wall opposite with tunnel excavation in active well, due to be used as the bearing surface of entire development machine propulsion,
Therefore need to carry out pre support, metope intensity will reach design requirement；(2) one group of offer, usual 4 propelling cylinders and bracket knot
Structure.(3) One hydraulic pump station and control valve group and pipeline are provided；(4) power supply system of capacity required for pumping station operation is provided；
(5) other auxiliary facilities and system.After all devices reach building site, construction site powers on, and starts hydraulic power unit, accordingly
Start development machine cutterhead, hydraulic circuit is opened by personal control, stretches out propelling cylinder slowly, development machine starts to excavate tunnel
Road after oil cylinder is fully extended, switches hydraulic circuit, and oil cylinder is slowly retracted, and it is pre- that cement is inserted between development machine and top-pushing mechanism
Tubulation section, subsequently into next propulsion stroke.
Above driving system has the disadvantages that 1, is higher to the intensity requirement of starting well stress wall, production and construction at
This is higher.2, pushing tow system can only once promote an oil cylinder stroke, add propulsion stroke after the iron of top also fairly limited.3, it touches
When powering inconvenient to field construction, Transmission Cost can only be increased, or in addition purchase generating set.4, current construction method can only
It is slagged tap using the mud mode of washing away, a set of mud system cost is very high.5, the rotation of cutterhead, by being mounted on inside shield body
Motor or hydraulic motor provide, each stroke needs to disconnect motor cable or motor oil when needing to install cement tube coupling
Pipe is passed through out of new tube coupling once again, and process is more complicated, and when tunnel is longer, it is longer to delay the construction time.6, when encountering
There are when crack in geology rock, mud loss amount is big.7, equipment transition dismounts heavy workload.
Therefore, all kinds of problems encountered for the above existing micro-tunneling development machine in construction hard rock tunnel, will entirely apply
Work engineering method is reintegrated.The integrated micro development machine pushing tow system and its working method solution of a kind of screw drives are provided
The various problems encountered during above-mentioned construction, and construction cost is reduced simultaneously, simplify construction method, there is important meaning
Justice.
Summary of the invention
The purpose of the present invention is to provide a kind of integrated micro development machine pushing tow system and its work with screw drives
Method facilitates operation, reduces the cost of building site civil construction, integrate by being a mechanical equipment by the pushing tow system integration
Matching for the system of change and development machine is more convenient；Using engine as power source, while meeting cutterhead rotation
The power that power and complete machine promote, and the dregs excavated can be discharged using spiral lever apparatus, and effectively reduce because of electricity
Extra cost when power is not supplied；And mud system is eliminated for entire traditional mini-sized tunnelling machine system；It greatly reduces and applies
Work cost, simplifies working procedure, substantially increases the driving speed of mini-sized tunnelling machine, shortens the construction period.
In order to solve the above technical problems, the present invention is achieved by the following technical solutions:
A kind of integrated micro development machine pushing tow system with screw drives of the invention, including be fixedly installed in along laying
The track base for the rectangle starting well inner bottom surface that conduit slope direction is excavated, the propulsion for being fixedly installed in track base end bottom
Oil cylinder is installed in rectangle starting well and slides the embedded steel pipe that fits with track base, is welded in the small of embedded steel pipe front end
Type hard rock heading end, be installed in rectangle starting well and configured with track base be slidably matched rack twist bit, installation
Power output end in twist bit and the spiral that is connected with the cutter plate driver on small-sized hard rock heading end top by six side's buttons
Drilling rod, the power output end for being installed on twist bit are simultaneously socketed cooperation propulsion apical ring with embedded steel pipe rear end, are set to auger
The rack two sides of machine are simultaneously opposite with the inserting bolthole of firm banking below track base and for bearing to tunnel counter-force and couple
Horizontal bolt oil cylinder, the hydraulic wireline winch for being set to twist bit back；The outside of mandril one end of the propelling cylinder and horizontal bolt oil cylinder
Face is movably connected；
The bottom of the frame of the twist bit is provided with to be slidably matched sliding bottom with track base；
The outside portion of the small-sized hard rock heading end is provided with stabilizer；
The auger stem is socketed in embedded steel pipe.
Further, internal combustion engine, drive transmission device, hydraulic power unit and hydraulic time are integrated in the twist bit
Road control valve group；The drive transmission device includes clutch and retarder；
The side of the twist bit is provided with the dregs outlet being connected with the end of auger stem.
Further, it is provided with operating platform on the twist bit, is provided on the operating platform for driver's hand
The operating system of dynamic control operation.
A kind of working method of the integrated micro development machine pushing tow system with screw drives, comprising the following steps:
S01: excavating configuration rectangle starting well according to conduit slope direction is laid with, and carry out equipment installation in starting well,
After equipment is installed, initial orientation is carried out by manually adjusting stabilizer in the first pick initial segment of small-sized hard rock heading end；
S02: the internal combustion engine starting in the twist bit, clutch is put into gear, and by retarder, then passes through auger
The rotation torque of internal combustion engine is transferred to the cutterhead on small-sized hard rock heading end top by bar, and the cutterhead just starts to rotate cutting
And cut face；
S03: while the internal combustion engine starts, hydraulic power unit is just started to work, and hydraulic circuit control valve group is passed through
Unlatching, the horizontal bolt oil cylinder stretches out, and makes the sliding bottom plug of twist bit on the firm banking below the track base, institute
Stating propelling cylinder, pushing tow is slowly released the rack of the twist bit, the twist bit starts on horizontal bolt oil cylinder at this time
Slowly push ahead；The propelling cylinder is pushed away by promoting apical ring and embedded steel pipe to constitute jacking system offer cutterhead driving simultaneously
Power, the twist bit, which pushes, promotes apical ring to be moved ahead by track base guiding；Dregs is pushed away from face by the blade of auger stem
It send removal and is discharged from the discharge port of twist bit, realize the drilling and deslagging function of whole system；
S04: in the state that one stroke of propelling cylinder is completely out, withdrawing horizontal bolt oil cylinder, make the sliding bottom with
Firm banking mutually separates, and shrinks the propelling cylinder, and the sliding bottom changes forward step at this time；
S05: after the propelling cylinder is withdrawn completely, the horizontal bolt oil cylinder continues to stretch out, and starts pushing away for next stroke
Into；Equipment can disposably complete the driving of multiple strokes without frequently installation tube coupling in this way；
S06: until the horizontal bolt oil cylinder is changed on final stage firm banking, by slowly moving back under the drive of hydraulic wireline winch
It is back to initial position, be put between the small-sized hard rock heading end and twist bit at this time and installs a new section auger
Bar and embedded steel pipe；Next circulation jacking is being carried out, driver station passes through operating system pair on the operational platform in whole process
Whole system is operated and is controlled.
The invention has the following advantages:
1, the present invention integrates the rotation of cutterhead with the mode of slagging tap, using the mode of continued access screw rod, by rotation torque
It is transmitted to cutterhead from the stationary engine in construction well, while carrying out automatic ash ejector using screw rod, eliminates mud output system,
Greatly reduce the cost of construction.
2, it is inconvenient to avoid construction site power supply using the internal combustion engine haveing excellent performance as power power source by the present invention
When increased costs, reduce because construction site power supply it is not upper caused by extra cost.
3, the present invention increases gearbox in engine output end, the speed regulation of cutterhead may be implemented, to cope with different geology
Operating condition meets the requirement of different construction addresses.
4, the present invention increases hydraulic oil pump in the other side output end of engine, for the power resources of oil cylinder, structure letter
Single, work efficiency is high, and working procedure is simple.
5, the present invention reduces the volume of pushing tow system by propelling cylinder integrated installation in the bottom of rack, pushing tow it is anti-
Active force, which only acts upon, to be fixed on the firm banking of bottom, does not need to reinforce construction wall.
6, rack of the invention, which is integrated with, changes step device, two to three strokes may be implemented, even more than the continuous of stroke
Driving.
7 present invention use integrated system, facilitate equipment transition.
Certainly, it implements any of the products of the present invention and does not necessarily require achieving all the advantages described above at the same time.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, will be described below to embodiment required
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ability
For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is the inside overall structure diagram of the integrated micro development machine pushing tow system of the invention with screw drives；
Fig. 2 is the overall structure diagram of Fig. 1；
The step of Fig. 3 is a kind of working method of integrated micro development machine pushing tow system with screw drives of the invention
Schematic diagram；
In attached drawing, parts list represented by the reference numerals are as follows:
The small-sized hard rock heading end of 1-, 2- stabilizer, 3- bury steel pipe, and 4- auger stem, 5- track base, 6-, which is promoted, to be pushed up
Ring, 7- twist bit, 8- propelling cylinder, the horizontal bolt oil cylinder of 9-, 10- hydraulic wireline winch, A- heading end length, B bury standard steel pipe+spiral shell
Rotary drill pole length, C- starting well length, D- standard originate length+small-sized driving element length.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, term "inner", " front end ", " rear end ", " two sides ", " outside portion ",
Indicating positions such as " sides " or positional relationship, are merely for convenience of description of the present invention and simplification of the description, rather than indication or suggestion
Signified component or element must have a particular orientation, and be constructed and operated in a specific orientation, therefore should not be understood as to this
The limitation of invention.
It please refers to shown in Fig. 1-2, a kind of integrated micro development machine pushing tow system with screw drives of the invention, including
It is fixedly installed in the track base 5 along the rectangle starting well inner bottom surface for being laid with conduit slope direction excavation, is fixedly installed in track
The propelling cylinder 8 of 5 end bottom of base, be installed in rectangle starting well and with the sliding of track base 5 fit embedded steel pipe 3,
It is welded in the small-sized hard rock heading end 1 of embedded 3 front end of steel pipe, is installed in rectangle starting well and configured with sliding with track base 5
The twist bit 7 of dynamic cooperation rack is installed on the power output end of twist bit 7 and is tunneled by six side's buttons and small-sized hard rock
The connected auger stem 4 of the cutter plate driver on first 1 top, the power output end for being installed on twist bit 7 and with embedded 3 rear end of steel pipe
Socket cooperation promotes apical ring 6, is set to the rack two sides of twist bit 7 and the plug with the firm banking of 5 lower section of track base
The opposite and horizontal bolt oil cylinder 9 for bearing driving counter-force and couple in hole, the hydraulic wireline winch 10 for being set to 7 back of twist bit；It pushes away
Mandril one end of oil inlet cylinder 8 and the lateral surface of horizontal bolt oil cylinder 9 are movably connected；
The bottom of the frame of twist bit 7 is provided with to be slidably matched sliding bottom with track base 5；Small-sized hard rock heading end 1
Outside portion be provided with stabilizer 2；Auger stem 4 is socketed in embedded steel pipe 3.
Wherein, internal combustion engine, drive transmission device, hydraulic power unit and hydraulic circuit control are integrated in twist bit 7
Valve group；Drive transmission device includes clutch and retarder；
The side of twist bit 7 is provided with the dregs outlet being connected with the end of auger stem 4.
Wherein, it is provided with operating platform on twist bit 7, is provided on operating platform for driver's manual control operation
Operating system.
As shown in figure 3, a kind of working method of the integrated micro development machine pushing tow system with screw drives, including it is following
Step:
S01: excavating configuration rectangle starting well according to conduit slope direction is laid with, and carry out equipment installation in starting well,
After equipment is installed, initial orientation is carried out by manually adjusting stabilizer 2 in the first pick initial segment of small-sized hard rock heading end 1,
Thereafter the limited direction controlling of precision is realized by it；
S02: the internal combustion engine starting in twist bit 7, clutch is put into gear, and by retarder, then passes through auger stem 4
The rotation torque of internal combustion engine is transferred to the cutterhead on small-sized 1 top of hard rock heading end, cutterhead just starts to rotate cutting and cut
Cut face；Without being equipped with the power source of additional rotation torque to development machine, it is fixed on to eliminate former rock tunnel(ling) machine
Motor and gearbox drive system in preceding shield body, and can be to avoid stroke after the completion of, need to dismount the process of cable and oil pipe；
S03: while internal combustion engine starts, hydraulic power unit is just started to work, and opening for hydraulic circuit control valve group is passed through
It opens, horizontal bolt oil cylinder 9 stretches out, and makes the sliding bottom plug of twist bit 7 on the firm banking of 5 lower section of track base, promotes oil
Cylinder 8 at this time slowly release the rack of twist bit 7 on horizontal bolt oil cylinder 9 by pushing tow, and twist bit 7 starts slowly to push ahead；
Propelling cylinder 8 tunnels thrust by promoting apical ring 6 and embedded steel pipe 3 to constitute jacking system offer cutterhead simultaneously, and twist bit 7 pushes away
Propulsion apical ring 6 by track base 5 be oriented to move ahead；Dregs is removed and by the blade push of auger stem 4 from spiral from face
The discharge port of drilling machine 7 is discharged, and realizes the drilling and deslagging function of whole system；
S04: in the state that 8 one strokes of propelling cylinder are completely out, withdrawing horizontal bolt oil cylinder 9, makes sliding bottom and consolidates
Determine pedestal mutually to separate, shrinks propelling cylinder 8, sliding bottom changes forward step at this time；
S05: after propelling cylinder 8 is withdrawn completely, horizontal bolt oil cylinder 9 continues to stretch out, and starts the propulsion of next stroke；In this way
Equipment can disposably complete the driving of multiple strokes without frequently installation tube coupling；
S06: it until horizontal bolt oil cylinder 9 is changed on final stage firm banking, under the drive by hydraulic wireline winch 10, slowly retracts
To initial position, it is put between small-sized hard rock heading end 1 and twist bit 7 at this time and installs a new section auger stem 4
With embedded steel pipe 3；Next circulation jacking is being carried out, driver station is on the operational platform by operating system to whole in whole process
A system is operated and is controlled.
The pushing tow system integration is a mechanical equipment by the present invention, is facilitated operation, is reduced the cost of building site civil construction,
Matching for integrated system and development machine is more convenient.Using internal combustion engine as power source, while meeting knife
The power that the power and complete machine of disc spins promote, and the dregs excavated can be discharged using spiral lever apparatus, and effectively drop
The low extra cost because when power supply is not upper.And mud system is eliminated for entire traditional mini-sized tunnelling machine system, significantly
Construction cost is reduced, working procedure is simplified, the driving speed of mini-sized tunnelling machine is substantially increased, shortens the construction period.
It overcomes the deficiency of normal miniature push bench process, is a kind of useful supplement to hard rock pipeline construction engineering method.
Integrated micro development machine pushing tow system with screw drives of the invention and its working method belong to spiral and decline
Type method for tunnel construction is mainly used for the construction of no aquifer water-bearing stratum, replaceable micro-push bench under the conditions of following construction geology:
1, the drying geology (can lead to mud loss) of the dry type on level of ground water, the geology of drying or high osmosis；
Dry mixing geological conditions；
2, the low-permeability rock geology under level of ground water.
3, in no aquifer water-bearing stratum under hard rock geological conditions, twist bit+small-sized hard rock heading end configuration, for minor diameter
The construction of short distance rectilinear duct is optimal construction method.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one implementation of the invention
In example or example.In the present specification, schematic expression of the above terms may not refer to the same embodiment or example.
Moreover, particular features, structures, materials, or characteristics described can be in any one or more of the embodiments or examples to close
Suitable mode combines.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment
All details are described, are not limited the invention to the specific embodiments described.Obviously, according to the content of this specification,
It can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to better explain the present invention
Principle and practical application, so that skilled artisan be enable to better understand and utilize the present invention.The present invention is only
It is limited by claims and its full scope and equivalent.
Claims (4)
1. a kind of integrated micro development machine pushing tow system with screw drives, it is characterised in that:
Including being fixedly installed in the track base (5) along the rectangle starting well inner bottom surface for being laid with conduit slope direction excavation, fixing
It is slided in being installed on the propelling cylinder (8) of track base (5) end bottom, being installed on rectangle starting well and with track base (5)
The embedded steel pipe (3) that fits, is installed on rectangle starting well at the small-sized hard rock heading end (1) for being welded in embedded steel pipe (3) front end
In and configured with track base (5) be slidably matched rack twist bit (7), be installed on the power outputs of twist bit (7)
It holds and passes through auger stem (4) that six side's buttons are connected with the cutter plate driver on small-sized hard rock heading end (1) top, be installed on spiral
The power output end of drilling machine (7) is simultaneously socketed the propulsion apical ring (6) of cooperation with embedded steel pipe (3) rear end, is set to twist bit (7)
Rack two sides and opposite with the inserting bolthole of firm banking below track base (5) and for bearing to tunnel counter-force and couple
Horizontal bolt oil cylinder (9), the hydraulic wireline winch (10) for being set to twist bit (7) back；Mandril one end of the propelling cylinder (8) and cross
The lateral surface of bolt oil cylinder (9) is movably connected；
The bottom of the frame of the twist bit (7) is provided with to be slidably matched sliding bottom with track base (5)；
The outside portion of the small-sized hard rock heading end (1) is provided with stabilizer (2)；
The auger stem (4) is socketed in embedded steel pipe (3).
2. a kind of integrated micro development machine pushing tow system with screw drives according to claim 1, which is characterized in that
Internal combustion engine, drive transmission device, hydraulic power unit and hydraulic circuit control valve group are integrated in the twist bit (7)；Institute
Stating drive transmission device includes clutch and retarder；
The side of the twist bit (7) is provided with the dregs outlet being connected with the end of auger stem (4).
3. a kind of integrated micro development machine pushing tow system with screw drives according to claim 1, which is characterized in that
It is provided with operating platform on the twist bit (7), the behaviour for driver's manual control operation is provided on the operating platform
Make system.
4. a kind of work of integrated micro development machine pushing tow system with screw drives as described in any one of claims 1-3
Method, it is characterised in that:
The following steps are included:
S01: configuration rectangle starting well is excavated according to conduit slope direction is laid with, and carries out equipment installation, equipment in starting well
After being installed, initial orientation is carried out by manually adjusting stabilizer (2) in the first pick initial segment of small-sized hard rock heading end (1)；
S02: the internal combustion engine starting in the twist bit (7), clutch is put into gear, and by retarder, then passes through auger
The rotation torque of internal combustion engine is transferred to the cutterhead on small-sized hard rock heading end (1) top by bar (4), and the cutterhead just starts to revolve
Turn cutting and cuts face；
S03: while the internal combustion engine starts, hydraulic power unit is just started to work, and opening for hydraulic circuit control valve group is passed through
It opens, the horizontal bolt oil cylinder (9) is stretched out, and firm banking of the sliding bottom plug of twist bit (7) below track base (5) is made
On, the propelling cylinder (8) at this time slowly release the rack of the twist bit (7), institute on horizontal bolt oil cylinder (9) by pushing tow
Twist bit (7) are stated to start slowly to push ahead；The propelling cylinder (8) is by promoting apical ring (6) and embedded steel pipe (3) simultaneously
It constitutes jacking system and cutterhead driving thrust is provided, the twist bit (7), which pushes, promotes apical ring (6) to be oriented to by track base (5)
It moves ahead；Dregs is removed by the blade push of auger stem (4) from face and is discharged from the discharge port of twist bit (7)；
S04: in the state that (8) strokes of propelling cylinder are completely out, horizontal bolt oil cylinder (9) is withdrawn, the sliding bottom is made
It is mutually separated with firm banking, shrinks the propelling cylinder (8), the sliding bottom changes forward step at this time；
S05: after the propelling cylinder (8) is withdrawn completely, the horizontal bolt oil cylinder (9) continues to stretch out, and starts next stroke
It promotes；
S06: until the horizontal bolt oil cylinder (9) is changed on final stage firm banking, under the drive by hydraulic wireline winch (10), slowly
It is retracted into initial position, be put between the small-sized hard rock heading end (1) and twist bit (7) at this time and installs new one
Save auger stem (4) and embedded steel pipe (3)；Next circulation jacking is being carried out, driver stands on the operational platform in whole process
Whole system is operated and controlled by operating system.
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| CN111577127A (en) * | 2020-05-16 | 2020-08-25 | 项英华 | Coal mine excavating device |
| CN111594211A (en) * | 2020-05-29 | 2020-08-28 | 中铁工程装备集团有限公司 | Hard rock cross-channel tunneling machine and construction method |
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| CN111395496A (en) * | 2020-03-25 | 2020-07-10 | 刘兵 | Hydraulic rotary crossing puncture method |
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| CN111594211A (en) * | 2020-05-29 | 2020-08-28 | 中铁工程装备集团有限公司 | Hard rock cross-channel tunneling machine and construction method |
| CN111594211B (en) * | 2020-05-29 | 2021-11-26 | 中铁工程装备集团有限公司 | Hard rock cross-channel tunneling machine and construction method |
| CN113250709A (en) * | 2021-05-26 | 2021-08-13 | 曾昭达 | Coil driving system |
| CN113250709B (en) * | 2021-05-26 | 2024-10-29 | 广东信稳能控技术研究有限公司 | Coil drive system |
| CN114086970A (en) * | 2021-09-30 | 2022-02-25 | 江苏马超地下工程设备有限公司 | Mechanism capable of combining and supporting travel equipment to walk and walking method |
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Application publication date: 20191112 |