CN112177622A - Automatic deployment device of TBM carrying microseismic sensor - Google Patents
Automatic deployment device of TBM carrying microseismic sensor Download PDFInfo
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- CN112177622A CN112177622A CN202011004514.6A CN202011004514A CN112177622A CN 112177622 A CN112177622 A CN 112177622A CN 202011004514 A CN202011004514 A CN 202011004514A CN 112177622 A CN112177622 A CN 112177622A
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- 230000007246 mechanism Effects 0.000 claims abstract description 69
- 238000005553 drilling Methods 0.000 claims abstract description 60
- 239000011435 rock Substances 0.000 claims abstract description 57
- 238000012544 monitoring process Methods 0.000 claims description 41
- 239000010720 hydraulic oil Substances 0.000 claims description 31
- 229910000831 Steel Inorganic materials 0.000 claims description 20
- 239000010959 steel Substances 0.000 claims description 20
- 238000010079 rubber tapping Methods 0.000 claims description 17
- 239000003921 oil Substances 0.000 claims description 9
- 238000013016 damping Methods 0.000 claims description 3
- 230000008878 coupling Effects 0.000 abstract description 13
- 238000010168 coupling process Methods 0.000 abstract description 13
- 238000005859 coupling reaction Methods 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 12
- 230000005641 tunneling Effects 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 9
- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 235000008331 Pinus X rigitaeda Nutrition 0.000 abstract 1
- 235000011613 Pinus brutia Nutrition 0.000 abstract 1
- 241000018646 Pinus brutia Species 0.000 abstract 1
- 230000035939 shock Effects 0.000 description 25
- 239000006096 absorbing agent Substances 0.000 description 20
- 238000009434 installation Methods 0.000 description 14
- 238000010276 construction Methods 0.000 description 8
- 239000002893 slag Substances 0.000 description 5
- 230000002265 prevention Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009933 burial Methods 0.000 description 1
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- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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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
- E21D9/087—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 with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines
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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
- E21D9/003—Arrangement of measuring or indicating devices for use during driving of tunnels, e.g. for guiding machines
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses an automatic deployment device of a TBM (tunnel boring machine) carrying microseismic sensor, which comprises a sliding-resetting mechanism, a rock wall coupling mechanism, a drilling mechanism and a clamping mechanism, wherein the drilling mechanism comprises a drilling motor 24, a drilling motor gearbox, a drilling threaded rod, a drill bit with an attack tooth and a microseismic sensor main body; the device can keep relative rest with the tunnel wall in the TBM tunneling process, and automatically reset when the displacement reaches the maximum; the automatic fastening can be realized when the microseism sensor main part is installed, and the microseism sensor main part takes off the pine automatically during operation, ensures to install the microseism sensor main part smoothly and blocks the conduction of TBM vibration.
Description
Technical Field
The invention relates to the field of microseismic monitoring, in particular to an automatic deployment device of a TBM (tunnel boring machine) carrying microseismic sensor.
Technical Field
A full face Tunnel Boring Machine (TBM) is a highly integrated, mechanized rock tunneling apparatus. The TBM can realize series of processes of cutting face rock by a cutter head, conveying broken stone by a belt, anchoring rock by a roof bolter, assembling steel arch supports by a steel arch erector, spraying concrete by a guniting bridge and the like, ensures the quick, safe and high-quality construction of a rock tunnel, and is an important tunnel construction method widely applied at home and abroad.
With the development of economic society, TBM construction frequently meets engineering environments with poor rock quality, high burial depth and high ground stress. Under the occurrence condition, stress redistribution is caused by excavation of surrounding rocks, strain energy in rock mass is gradually accumulated and suddenly released at a certain moment, and rock burst disasters are generated. Rock burst is one of the most main problems in tunnel construction, the stripping of rock blocks affects the lining effect if the rock burst is light, and the flying rocks hurt people and crush equipment if the rock burst is heavy, even TBM (tunnel boring machine) blocking, local collapse and the like can be caused, so that the safety of personnel and equipment and the normal propulsion of engineering are seriously affected.
In order to effectively and reasonably prevent rock burst, a monitoring method capable of accurately early warning rock burst must be found. The micro-seismic monitoring technology can realize relatively accurate rock burst early warning by monitoring elastic waves released by rock cracking in surrounding rocks and analyzing information such as time, space and energy levels of the elastic waves. However, the microseismic monitoring technology can monitor the rock breaking vibration signal and is based on a microseismic sensor buried in the surrounding rock. Therefore, in the construction of the TBM tunnel, in order to ensure that the microseismic monitoring system can always cover the area near the tunneling working face of the TBM, workers must frequently disassemble and assemble the sensor according to the construction progress of the TBM. Because the sensors are generally installed a short distance behind the tunnel face, the personal safety of workers can be seriously threatened by active rock burst activities. Therefore, a method capable of avoiding frequent manual disassembly and assembly of the sensor is urgently needed.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an automatic deployment device of a TBM (tunnel boring machine) carrying microseismic sensor.
The invention realizes the purpose through the following technical scheme:
an automatic disposition device of a TBM carrying microseismic sensor comprises a tapping drill bit, a microseismic sensor main body and a clamping mechanism,
the microseism sensor main body is provided with a clamping part, a limiting bulge and a monitoring part from the inner end to the outer end in sequence,
fixture includes grip slipper and baffle, be provided with grip slipper center pin through-hole on the grip slipper, the batter post hole of intercommunication with grip slipper center pin through-hole is seted up to grip slipper circumference, the outer end of grip slipper has the spacing groove along opening, the clamping part of microseism sensor main part inserts the outer end of grip slipper, spacing arch slides in the spacing groove that corresponds, the outer terminal surface at the grip slipper is fixed to the baffle, the monitoring portion of microseism sensor main part passes the baffle through-hole on the baffle, the downthehole clamping jaw that has inserted of batter post.
The clamping mechanism further comprises a clamping motor, a driving gear and a clamping ring, the clamping motor is fixed on the clamping seat, a rotating shaft of the clamping motor is connected with the driving gear, an inner ring of the clamping ring is sleeved on the clamping seat and meshed with the external threads of the clamping jaws to form a screw rod structure, and an outer ring surface of the clamping ring is meshed with the driving gear.
The clamping ring is connected with the outer ring of the external bearing, and the inner ring of the external bearing is sleeved and fixed on the clamping seat.
The automatic disposition device of the TBM carrying microseismic sensor further comprises a drilling motor, a drilling motor gearbox and a drilling threaded rod, wherein the drilling motor is connected with the drilling threaded rod through the drilling motor gearbox, and the drilling threaded rod is connected with the inner end of the clamping seat.
The utility model provides a TBM carries on automatic device of arranging of slight shock sensor, still include ribbed pressure bearing shell, the motor creeps into, creep into the motor gearbox, creep into the threaded rod, slight shock sensor main part and fixture all set up in ribbed pressure bearing shell, the slipmat uses bolted connection to be fixed in ribbed pressure bearing shell's outer bottom plate face on, the outer edge of interior cylinder vallecular cavity on ribbed pressure bearing shell's outer bottom plate face is fixed along preventing the outer edge of sediment funnel, it perforates to prevent that sediment funnel center is provided with the sensor, the monitoring portion outer end of slight shock sensor main part and attack the tooth drill bit and wear out ribbed pressure bearing shell from sensor perforation.
The utility model provides a TBM carries on automatic deployment device of microseism sensor, still include two hydraulic shock absorbers that distribute in two opposite sides of ribbed pressure-bearing shell, the flexible end of shock attenuation of every hydraulic shock absorber is fixed in on corresponding hydraulic cylinder's the output through bolted connection, hydraulic shock absorber's stiff end and bumper shock absorber pivot are connected, the bumper shock absorber pivot other end passes through the bearing and connects on ribbed pressure-bearing shell side, the bumper shock absorber torsional spring both ends are connected with the side of ribbed pressure-bearing shell of homonymy and hydraulic shock absorber's stiff end respectively.
The fixed ends of the two hydraulic oil cylinders are distributed on two opposite sides of the sliding-resetting mechanism shell, the fixed end of each hydraulic oil cylinder is fixedly connected with one end of a rotating shaft of the oil cylinder, the other end of the rotating shaft of the oil cylinder is connected to the sliding-resetting mechanism shell through a bearing, two ends of a torsion spring of the oil cylinder are respectively connected with the side surface of the sliding-resetting mechanism shell and the fixed end of the hydraulic oil cylinder on the same side, the two hydraulic oil cylinder control devices are fixed on the two opposite sides of the sliding-resetting mechanism shell, and a hydraulic oil input hole and a hydraulic oil output hole of each hydraulic oil cylinder control device are connected to an output hole.
An automatic deployment device of a TBM carrying microseismic sensor further comprises rollers, a roller driving motor and an H-shaped steel track, wherein the H-shaped steel track comprises two flange plates which are arranged in parallel and a connecting plate which is connected with the two flange plates, the inner wall of each side of one flange plate is provided with two rollers, the wheel surface of each roller is attached to the inner side of the flange plate of the H-shaped steel track and can roll along the extension direction of the H-shaped steel track, the rotating shaft of each roller is connected to the shell of a sliding-resetting mechanism through a bearing,
the rotation shafts of the rollers as described above are connected to the drive shafts of the corresponding roller drive motors provided on the slide-return mechanism housing.
The sliding-resetting mechanism housing as described above is provided with a camera facing the rock wall.
Compared with the prior art, the invention has the following beneficial effects:
1. the automatic micro-seismic monitoring can be realized, and the mechanization and automation degree of TBM construction operation is improved;
2. the automatic deployment device can keep relative static with the tunnel wall in the TBM tunneling process and automatically reset when the displacement reaches the maximum, so that continuous and stable microseismic monitoring and automatic deployment of the microseismic sensor in the whole TBM construction process are realized;
3. the clamping mechanism can realize automatic fastening when the micro-seismic sensor main body is installed, and the micro-seismic sensor main body automatically loosens when working, so that the micro-seismic sensor main body is ensured to be installed smoothly, and the conduction of TBM vibration is blocked;
4. the integration of drilling and fixing the micro-seismic sensor main body is realized, the size of the mounting device of the micro-seismic sensor main body is reduced, the mounting process is simplified, the mounting time is shortened, and the micro-seismic sensor fixed on the rock wall can be quickly and efficiently mounted and dismounted.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic top view of FIG. 1;
FIG. 3 is a schematic bottom view of FIG. 1 (without the slag hopper installed);
FIG. 4 is a left side view of FIG. 1 (with the H-beam rail attached);
FIG. 5 is a schematic view of the installation of the present invention;
FIG. 6 is a schematic view of the TBM installation cross section of the present invention;
FIG. 7 is an axial schematic view of the TBM installation of the present invention;
FIG. 8 is a schematic view of the microseismic sensor body of FIG. 1 in a fastened state;
FIG. 9 is a schematic view of the microseismic sensor body of FIG. 1 in a released state;
FIG. 10 is a schematic view of the jaw tightening of FIG. 8;
FIG. 11 is a schematic view of a holder according to the present invention;
fig. 12 is a schematic top view of the ribbed pressure shell of the present invention.
Wherein, 1-rock wall; 2-TBM host; 3-automatic deployment device; 4-H-shaped steel rails; 5-roller driving motor; 6-sliding-resetting mechanism housing; 7-a roller; 8-a hydraulic oil cylinder control device; 9-a hydraulic oil cylinder; 11-a hydraulic shock absorber; 12-ribbed pressure-bearing shells; 13-a non-slip mat; 14-a slag-proof hopper; 15-tapping drill bit; 16-a microseismic sensor body; 17-a baffle; 18-a holder; 19-a clamping motor; 20-a drive gear; 21-a clamping ring; 22-a clamping jaw; 23-drilling motor gearbox; 24-a drilling motor; 25-drilling a threaded rod; 26-a camera; 27-a limiting groove; 28-oblique cylindrical hole; 1601-a clamping portion; 1602-limit protrusions; 1603-monitoring; 101-cylinder torsion spring; 102-damper torsion spring.
Detailed Description
The present invention will be described in further detail with reference to examples for the purpose of facilitating understanding and practice of the invention by those of ordinary skill in the art, and it is to be understood that the present invention has been described in the illustrative embodiments and is not to be construed as limited thereto.
The embodiment of the invention discloses an automatic deployment device of a TBM (tunnel boring machine) carrying microseismic sensor, which aims to solve the technical problem that the safety of personnel and full-time monitoring are seriously influenced by manual sensor disassembly and assembly required by sensor array propulsion in the prior art.
As shown in fig. 1 to 7, an automatic deployment device 3 according to an embodiment of the present invention is installed on an H-shaped steel track 4, a skid-proof pad 13 of the automatic deployment device is tightly attached to a rock wall 1, the H-shaped steel track is welded to a TBM main machine 2 and extends along an axial direction of the TBM main machine 2, and the automatic deployment device 3 mainly includes four parts, that is, (1) a sliding-resetting mechanism, (2) a rock wall coupling mechanism, (3) a drilling mechanism, and (4) a clamping mechanism.
With reference to fig. 1-5, the slide-and-reset mechanism of an embodiment of the present invention comprises a slide-and-reset mechanism housing 6, the slide-and-reset mechanism housing 6 providing installation space for the other components of the slide-and-reset mechanism and the components of the rock wall coupling mechanism.
Further, referring to fig. 1 to 5, the slide-return mechanism according to the embodiment of the present invention further includes rollers 7 and roller driving motors 5, the H-shaped steel rail 4 includes two flange plates disposed in parallel and a connecting plate connecting the two flange plates, one of the flange plates is fixed to the bottom of the other component, two rollers 7 are disposed on the inner wall of each side of the other flange plate, the wheel surfaces of the rollers 7 are attached to the inner sides of the flange plates of the H-shaped steel rail 4 and can roll along the extending direction of the H-shaped steel rail 4, the rotation shaft of each roller 7 is connected to the slide-return mechanism housing 6 through a bearing and the end surface of the rotation shaft of the roller 7 is welded to the driving shaft of a corresponding roller driving motor 5, and the four roller driving motors 5 are fixed to the slide-return mechanism housing 6 through a bolt connection.
The roller 7 of the embodiment of the invention realizes sliding and resetting of the automatic deployment device 3, the roller driving motor 5 provides resetting power for the roller 7, when the automatic deployment device 3 passively slides on the H-shaped steel track, the roller driving motor 5 does not work, the roller 7 is driven to slide by friction counter force provided by the rock wall coupling mechanism, when the automatic deployment device 3 needs to be reset to the initial position, the roller driving motor 5 can be controlled to start to drive the corresponding roller to rotate, so that the automatic deployment device returns to the initial position, and the roller driving motor 5 has a braking function to ensure stability and reliability of the resetting process.
Further, with reference to fig. 1 to 5, the sliding-resetting mechanism according to the embodiment of the present invention further includes a camera 26 fixed to a side surface of the sliding-resetting mechanism housing 6 facing the rock wall, and the camera 26 is configured to observe whether the installation condition of the sensor on the rock wall is satisfied, and control the sliding-resetting mechanism to slide to a proper position if the selected position is just a condition that the sensor is not suitable for installation, such as a steel arch frame, and the like, and meanwhile, the camera 26 may also monitor the operation condition of the entire automatic deployment device during the microseismic monitoring process, and remind a controller to perform timely disposal if a slip occurs.
With reference to fig. 1-5, the rock wall coupling mechanism of the embodiment of the invention comprises hydraulic cylinders 9, hydraulic cylinder control devices 8 and torsion springs (101/102), wherein two hydraulic cylinders 9 are symmetrically distributed on two sides of a sliding-resetting mechanism housing, the fixed end of each hydraulic cylinder 9 is fixedly connected with one end of a cylinder rotating shaft, the other end of the cylinder rotating shaft is connected to the sliding-resetting mechanism housing 6 through a bearing, two ends of a cylinder torsion spring 101 are respectively connected with the side surface of the sliding-resetting mechanism housing 6 and the fixed end of the hydraulic cylinder 9 on the same side, the output end of the hydraulic cylinder 9 is fixed on a shock absorption telescopic section of a hydraulic shock absorber 11 through a bolt connection, the two hydraulic cylinder control devices 8 are symmetrically fixed on the sliding-resetting mechanism housing 6 through bolts, and the hydraulic oil input and hydraulic oil output holes of each hydraulic cylinder control device 8 are connected to the output hole and input.
In the embodiment of the invention, the two hydraulic oil cylinder control devices 8 can respectively and synchronously control the extension and the contraction of the piston rods of the corresponding hydraulic oil cylinders 9, namely, the anti-skid mat 13 is tightly attached to the rock wall 1 during monitoring, and the anti-skid mat 13 is retracted during resetting so as to ensure the smooth resetting.
Fig. 12 is a schematic view of the ribbed pressure-bearing shell of the present invention, and further, with reference to fig. 1-5 and 12, the rock wall coupling mechanism of the embodiment of the present invention further includes hydraulic shock absorbers 11, two hydraulic shock absorbers 11 are symmetrically distributed on the side surface of the ribbed pressure-bearing shell 12, a shock-absorbing telescopic end of each hydraulic shock absorber 11 is fixed to an output end of a corresponding hydraulic cylinder 9 through a bolt connection, a fixed end of the hydraulic shock absorber 11 is connected to a shock-absorber rotating shaft, the other end of the shock-absorber rotating shaft is connected to the side surface of the ribbed pressure-bearing shell 12 through a bearing, and two ends of a shock-absorber torsion spring 102 are respectively connected to the side surface of the ribbed pressure-bearing shell 12 and the fixed end of the hydraulic shock absorber 11.
In the embodiment of the invention, the two hydraulic dampers 11 can realize the purpose of slowing down the tunneling vibration of the TBM main machine 2 transmitted to the ribbed pressure bearing shell 12, namely serve as a primary damping structure of the rock wall coupling mechanism, and can also transmit the pressure applied by the hydraulic oil cylinder 9 to the ribbed pressure bearing shell 12 during monitoring.
In the embodiment of the invention, the oil cylinder torsion springs 101 are respectively connected between the hydraulic oil cylinder 9 and the side face of the sliding-resetting mechanism shell 6 on the same side, and the two damper torsion springs 102 are respectively connected between the hydraulic damper 11 and the side face of the ribbed pressure bearing shell 12 on the same side, so that the torque can be generated to ensure that the rock wall coupling mechanism is kept at a set initial angle in the resetting process of the automatic deployment device, and simultaneously the hydraulic oil cylinder 9 and the hydraulic damper 11 can respectively rotate around the oil cylinder rotating shaft and the damper rotating shaft to a certain degree, that is, the angle of the rock wall coupling mechanism can be automatically adjusted when the hydraulic oil cylinder 9 applies pressure, so that the skid-proof pad 13 can be ensured to be tightly attached to the rock wall 1, and meanwhile, the automatic adaptation of the automatic deployment device to the vibration generated in the tunneling process of the TBM main machine.
Further, referring to fig. 1-5 and 12, the rock wall coupling mechanism according to the embodiment of the present invention further includes a ribbed pressure-bearing shell 12 and a non-slip mat 13, wherein the ribbed pressure-bearing shell 12 is located between the fixed ends of the two hydraulic shock absorbers 11, the non-slip mat 13 is fixed on the outer bottom plate surface of the ribbed pressure-bearing shell 12 by using a bolt connection, and the non-slip mat 13 is made of a rubber material and is engraved with a wavy non-slip groove on the mat surface, i.e., the surface in contact with the rock wall.
In the embodiment of the invention, the ribbed pressure bearing shell 12 can provide an installation space and a stable operation reference environment for a drilling mechanism and a clamping mechanism, the drilling motor 24, the drilling motor gearbox 23, the drilling threaded rod 25, the microseismic sensor main body 16 and the clamping mechanism are all arranged in the ribbed pressure bearing shell 12, the pressure transmitted by the hydraulic shock absorber 11 can be transmitted to the non-slip mat 13 during monitoring, the non-slip mat 13 is made of rubber materials, so the non-slip mat can be deformed to be tightly attached to the surface of an uneven rock wall, and simultaneously the non-slip mat can be combined with wavy non-slip stripes of the mat surface to ensure that the whole automatic deployment device is always kept in a relatively static state relative to the rock wall in the monitoring stage, the non-slip mat 13 can further reduce mechanical shock transmitted from the TBM main machine 2, namely used as a secondary shock absorption structure of a rock wall coupling mechanism, and reduce the influence of the TBM mechanical shock on, reducing interference experienced by the microseismic sensor body 16.
With reference to fig. 1 to 5, the drilling mechanism according to the embodiment of the present invention includes a drilling motor 24, a drilling motor gearbox 23, and a drilling threaded rod 25, wherein the drilling motor 24 is fixed to the drilling motor gearbox 23 by a bolt, an output end of the drilling motor 24 is fixedly connected to an input end of the drilling motor gearbox 23, a side surface of the drilling motor gearbox 23 is fixed to a side surface of the ribbed pressure-bearing shell 12 by a bolt, and the drilling threaded rod 25 is matched with an internal thread of an output shaft of the drilling motor gearbox 23 by an external thread through a central axis through hole of the drilling motor 24 and the drilling motor gearbox 23.
In the embodiment of the invention, the drilling motor 24 and the drilling motor gearbox 23 provide power for the drilling threaded rod 25, the rotation output by the drilling motor 24 is converted into low-speed high-torque rotation through the drilling motor gearbox 23, the drilling threaded rod 25 is driven to rotate and advance through thread matching, and the forward and backward of the drilling threaded rod 25 can be controlled by controlling the rotation direction of the output shaft of the drilling motor 24, so that the installation and the disassembly of the sensor are realized.
Further, with reference to fig. 1, fig. 3, fig. 8 and fig. 9, the drilling mechanism of the embodiment of the present invention further includes a drill bit 15 with tapping and a microseismic sensor main body 16, wherein the front end of the drill bit 15 with tapping is a twist drill, the rear end of the drill bit 15 with tapping is provided with a self-tapping thread, the tail end of the drill bit 15 with tapping is welded to the outer end of the monitoring portion of the microseismic sensor main body 16, and the microseismic sensor main body 16 is sequentially divided into a clamping portion 1601, a limiting protrusion 1602 and a monitoring portion 1603 from the inner end to the outer end.
In the embodiment of the invention, the drill bit 15 with the tapping is made of high-strength alloy, a drill hole with a certain depth can be drilled on a concrete lining on the surface of the rock wall 1, the tapping can drill corresponding threads on the inner wall of the drill hole and be tightly matched, so that the microseismic sensor main body 16 can be stably and tightly fixed on the surface of the rock wall 1, the clamping part 1601 of the microseismic sensor main body 16 is used for being matched with a clamping mechanism to realize the installation and the disassembly of the sensor, the limiting bulge 1602 is used for being matched with the clamping seat 18 and the baffle 17, and the monitoring part 1603 is internally provided with a microseismic monitoring core body to realize the function of microseismic monitoring.
Further, referring to fig. 1, the drilling mechanism of the embodiment of the present invention further includes a slag prevention funnel 14, an outer edge of the slag prevention funnel 14 is fixed to an outer edge of the inner cylindrical groove cavity on the outer bottom plate surface of the ribbed pressure bearing shell 12 by a bolt, a sensor through hole slightly larger than an outer diameter of the monitoring portion of the microseismic sensor main body 16 is provided at the center of the slag prevention funnel 14, an outer end of the monitoring portion of the microseismic sensor main body 16 and the tapping drill 15 penetrate through the ribbed pressure bearing shell 12 from the sensor through hole to ensure that the monitoring portion of the microseismic sensor main body 16 can pass smoothly, and the slag prevention funnel has an effect of discharging crushed stones generated by drilling the tapping drill 15 along a funnel wall to prevent the crushed stones from falling into an inner installation space of the ribbed pressure bearing shell 12.
Referring to fig. 1, 3, 8-11, the clamping mechanism in the embodiment of the present invention includes a clamping seat 18 and a baffle 17, wherein the rear end of the clamping seat 18 is fixed to the front end of the drilling threaded rod 25 by a screw connection, a clamping seat central axis through hole is formed on the clamping seat 18, four oblique cylindrical holes communicated with the clamping seat central axis through hole are circumferentially formed on the clamping seat 18, the cross-sectional dimension of the oblique cylindrical holes is matched with the cross-sectional dimension of the clamping jaws 22, four limiting grooves 27 are formed on the outer end of the clamping seat 18, the size of the limiting groove 27 is larger than that of a limiting protrusion 1602 at a circumferentially corresponding position of the microseismic sensor main body 16, a clamping portion 1601 of the microseismic sensor main body 16 is inserted into the outer end of the clamping seat 18, the limiting protrusion 1602 slides into the corresponding limiting groove to perform a circumferential rotation limiting function, the baffle 17 is fixed to the outer end surface of the clamping seat, the monitoring part 1603 of the microseismic sensor main body 16 penetrates through the baffle through hole, the outer diameter of a distribution circle where each limiting protrusion 1602 arranged in the circumferential direction of the microseismic sensor main body 16 is located is larger than the diameter of the baffle through hole, and the baffle 17 and the limiting groove are matched to limit the circumferential direction and the axial displacement of the microseismic sensor main body 16.
In the embodiment of the invention, the clamping seat 18 provides an installation space for other components of the clamping mechanism, particularly, the movement direction of the clamping jaw 22 is guided, so that the clamping jaw can advance and retreat along the direction of the inclined column hole under the action of the fastening ring 21, the baffle 17 and the clamping seat 18 are matched to realize loose limiting on the microseismic sensor main body 16, the microseismic sensor main body is prevented from being accidentally loosened, meanwhile, direct contact in a monitoring stage is reduced as far as possible, and the influence of mechanical vibration on the sensor is prevented.
Further, with reference to fig. 1, 3, 8-10, the clamping mechanism in the embodiment of the present invention further includes clamping motors 19, a driving gear 20, clamping rings 21, and clamping jaws 22, wherein two clamping motors 19 are symmetrically fixed on the side of the clamping seat 18 through screw connection, a rotating shaft of each clamping motor 19 is welded with one driving gear 20, an inner ring of an external bearing is sleeved on the clamping seat 18, an inner ring of the clamping ring 21 is sleeved on the clamping seat 18, an outer ring of the external bearing is connected with the clamping ring 21, an outer ring surface of the clamping ring 21 is engaged with the driving gear 20, the clamping motors 19 drive the clamping rings 21 to rotate through the driving gears 20, four clamping jaws 22 are respectively installed in inclined cylindrical holes corresponding to the clamping seat 18, the clamping jaws 22 are cylindrical and have outer peripheries provided with external threads, an inner ring of the clamping ring 21 is tapered, an inner ring of the clamping ring 21 is provided with internal threads adapted to, the internal thread of the inner ring of the clamping ring 21 is meshed with the external thread of the clamping jaw 22, the clamping ring 21 and the clamping jaw 22 form a screw rod structure, when the clamping ring 21 rotates towards one direction, the clamping jaw 22 is driven to rotate towards the inclined column hole and clamp the clamping part of the microseismic sensor main body 16 at the end part, when the clamping ring 21 rotates towards the other direction, the clamping jaw 22 is driven to rotate out towards the outer part of the inclined column hole and the clamping part of the microseismic sensor main body 16 is loosened at the end part.
In the embodiment of the invention, the clamping motor 19 is provided with a maximum torque setting, and drives the driving gear 20 to rotate forwards and backwards through forward rotation and reverse rotation so as to drive the clamping ring 21 to rotate forwards and backwards, and further drives the clamping jaw to move forwards and backwards through the conversion of the conical thread, thereby realizing the function of clamping or loosening the microseismic sensor main body 16.
In the embodiment of the invention, the automatic deployment device of the microseismic sensor comprises three stages of sensor installation, monitoring and resetting.
A sensor mounting stage: firstly, the TBM is not in a tunneling state, and the roller drives the brake of the motor 5 to start so as to prevent the automatic deployment device from sliding; then, the hydraulic oil cylinder control device 8 controls the extension of a piston rod of the hydraulic oil cylinder 9 to enable the non-slip mat 13 to be tightly attached to the rock wall 1, and at the moment, the two oil cylinder torsion springs 101 and the two shock absorber torsion springs 102 can allow the rock wall coupling mechanism to generate a certain rotation angle to ensure tight coupling; and then, the drilling motor 24 drives the drilling threaded rod 25 to rotate and advance slowly through the drilling motor gearbox 23, and further drives the micro-seismic sensor main body 16 and the tapping drill bit 15 to drill slowly through the clamping mechanism, so that a drill hole is drilled on the lining on the surface of the rock wall 1, the tapping on the tapping drill bit 15 enables the micro-seismic sensor main body 16 to be stably fixed on the surface of the rock wall 1, and the sensor installation stage is finished.
A monitoring stage: the clamping motor 19 drives the clamping jaw 22 to retreat to separate the clamping mechanism from the microseismic sensor main body 16, the relation between the limiting protrusion and the baffle and the limiting groove is loose limiting, and the microseismic sensor main body 16 is prevented from being separated or damaged when the automatic deployment device is abnormal under certain extreme conditions (such as out-of-control of a control program, large-amplitude vibration of the deployment device, slippage of the deployment device and the like).
Then, the roller driving motor 5 releases the brake to start microseismic monitoring; in the monitoring process, the vibration of the TBM main machine 2 can cause the vibration of the sliding-resetting mechanism, the four torsion springs can allow the relative rotation to be generated at the moment, and the vibration is reduced through the two-stage damping of the hydraulic damper 11 and the non-slip mat 13, so that the TBM vibration is prevented from being transmitted to the rock wall 1; the TBM main machine 2 can advance towards the tunneling direction during tunneling, the automatic deployment device is kept to be relatively static by means of friction between the anti-slip mat 13 and the rock wall 1 at the moment, the rollers 5 correspondingly slide on the H-shaped steel rails 4, the device is guaranteed not to be damaged due to relative movement between the TBM main machine 2 and the rock wall 1, the microseismic sensor main body keeps microseismic monitoring in the whole process at the stage, vibration of the TBM main machine 2 is not transmitted to the microseismic sensor main body 16 due to the fact that the clamping mechanism is separated from the microseismic sensor main body 16, and in the stage, a controller can monitor the operation condition of the automatic deployment device through the camera 26, and if the conditions that the automatic deployment device slips and displaces from the rock wall are found, resetting is carried out in time.
A reset stage: when the roller 7 reaches the maximum sliding distance, resetting the automatic deployment device, starting the brake by the roller driving motor 5, and driving the clamping jaw 22 to clamp the microseismic sensor main body 16 by the clamping motor 19; after the clamping motor 19 reaches the maximum torque, the driving motor rotates reversely to screw out the tapping drill bit 15; then, the hydraulic oil cylinder control device 8 controls the piston rod of the hydraulic oil cylinder 9 to contract, so that the anti-skid pad 13 is separated from the rock wall 1; subsequently, the roller driving motor 5 releases the brake, the roller 7 is driven to rotate to restore the automatic deployment device to the initial position, whether the rock wall at the initial position meets the condition of installing the microseismic sensor main body or not is observed through the camera 26, if a steel arch frame and other structures which influence the fixation of the sensor exist, the roller driving motor 5 is controlled to adjust the automatic deployment device to the proper position, and the resetting stage is finished.
With reference to fig. 6 and 7, in the embodiment of the invention, eight automatic deployment devices 3 are arranged on a TBM host 2 and divided into two microseismic monitoring sections, four automatic deployment devices 3 are arranged on each microseismic monitoring section, in order to improve the microseismic source positioning accuracy, the four automatic deployment devices 3 on each microseismic monitoring section are arranged in a different plane, namely, staggered at a certain distance in the axial direction, and the four automatic deployment devices 3 are not on the same plane, actuating components such as a roller driving motor 5, a hydraulic oil cylinder control device 8, a microseismic sensor main body 16, a clamping motor, a drilling motor 24, a camera 26 and the like in the automatic deployment devices are controlled by a TBM control system, the accurate coordinates of each microseismic sensor main body can be calculated by combining the initial position of each automatic deployment device with the position of a TBM cutter head measured in the TBM control system, and the sliding distance of the automatic deployment devices can be calculated by the TBM tunneling distance, so as to determine the time for resetting, thereby realizing the full-automatic real-time microseismic monitoring suitable for the TBM.
In conclusion, the embodiment of the invention can be suitable for automatic micro-seismic monitoring of TBM, avoids fussy manual disassembly and assembly procedures, guarantees personnel safety, simultaneously realizes quick and efficient installation and disassembly of the micro-seismic sensor fixed on the rock wall, and has good practicability.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (9)
1. An automatic deployment device of a TBM carrying microseismic sensor comprises a tapping drill bit (15), and is characterized by also comprising a microseismic sensor main body (16) and a clamping mechanism,
the microseismic sensor main body (16) is provided with a clamping part (1601), a limiting bulge (1602) and a monitoring part (1603) from the inner end to the outer end in sequence,
fixture includes grip slipper (18) and baffle (17), be provided with grip slipper center pin through-hole on grip slipper (18), the batter post hole with grip slipper center pin through-hole intercommunication is seted up to grip slipper (18) circumference, spacing groove (27) have been opened along the outer end of grip slipper (18), the outer end of grip slipper (18) is inserted in clamping part (1601) of microseism sensor main part (16), spacing arch (1602) slide in corresponding spacing groove (27), the outer terminal surface at grip slipper (18) is fixed in baffle (17), the monitoring part (1603) of microseism sensor main part (16) passes the baffle through-hole on baffle (17), insert clamping jaw (22) in the batter post hole.
2. The automatic deployment device of the TBM-carried microseismic sensor as recited in claim 1, wherein the clamping mechanism further comprises a clamping motor (19), a driving gear (20) and a clamping ring (21), the clamping motor (19) is fixed on the clamping seat (18), a rotating shaft of the clamping motor (19) is connected with the driving gear (20), an inner ring of the clamping ring (21) is sleeved on the clamping seat (18) and meshed with an outer thread of the clamping jaw (22) to form a screw rod structure, and an outer ring surface of the clamping ring (21) is meshed with the driving gear (20).
3. The TBM automatic deployment device with the microseismic sensor as claimed in claim 1, further comprising a drilling motor (24), a drilling motor gearbox (23) and a drilling threaded rod (25), wherein the drilling motor (24) is connected with the drilling threaded rod (25) through the drilling motor gearbox (23), and the drilling threaded rod (25) is connected with the inner end of the clamping seat (18).
4. The TBM automatic deployment device for the microseismic sensor carried by the TBM according to the claim 3, further comprising a ribbed pressure bearing shell (12), wherein the drilling motor (24), the drilling motor gearbox (23), the drilling threaded rod (25), the microseismic sensor main body (16) and the clamping mechanism are all arranged in the ribbed pressure bearing shell (12), the anti-slip pad (13) is fixed on the outer bottom plate surface of the ribbed pressure bearing shell (12) by using a bolt for connection, the outer edge of the slag-proof funnel (14) is fixed on the outer edge of the inner cylindrical groove cavity on the outer bottom plate surface of the ribbed pressure bearing shell (12), a sensor perforation is arranged at the center of the slag-proof funnel (14), and the outer end of the monitoring part of the microseismic sensor main body (16) and the tapping drill bit (15) penetrate out of the ribbed pressure bearing shell (12) from the sensor perforation.
5. The automatic deployment device of the TBM carrying microseismic sensor as recited in claim 4, further comprising two hydraulic dampers (11) distributed on two opposite sides of the ribbed pressure-bearing shell (12), wherein the damping telescopic end of each hydraulic damper (11) is fixed on the output end of the corresponding hydraulic oil cylinder (9) through bolt connection, the fixed end of each hydraulic damper (11) is connected with a damper rotating shaft, the other end of the damper rotating shaft is connected on the side of the ribbed pressure-bearing shell (12) through a bearing, and two ends of the damper torsion spring (102) are respectively connected with the side of the ribbed pressure-bearing shell (12) and the fixed end of the hydraulic damper (11) on the same side.
6. The automatic deployment device of claim 4 for the TBM-carried microseismic sensor, the hydraulic oil cylinder control device is characterized in that fixed ends of two hydraulic oil cylinders (9) are distributed on two opposite sides of a sliding-resetting mechanism shell (6), the fixed end of each hydraulic oil cylinder (9) is fixedly connected with one end of an oil cylinder rotating shaft, the other end of the oil cylinder rotating shaft is connected to the sliding-resetting mechanism shell (6) through a bearing, two ends of an oil cylinder torsion spring (101) are respectively connected with the side face of the sliding-resetting mechanism shell (6) and the fixed ends of the hydraulic oil cylinders (9) on the same side, two hydraulic oil cylinder control devices (8) are fixed on the two opposite sides of the sliding-resetting mechanism shell (6), and a hydraulic oil input hole and a hydraulic oil output hole of each hydraulic oil cylinder control device (8) are connected to an output hole and an input hole of.
7. The automatic deployment device of the TBM-carried microseismic sensor is characterized by further comprising rollers (7), a roller driving motor (5) and an H-shaped steel track (4), wherein the H-shaped steel track (4) comprises two flange plates arranged in parallel and a connecting plate for connecting the two flange plates, two rollers (7) are arranged on the inner wall of each side of one flange plate, the wheel surfaces of the rollers (7) are attached to the inner sides of the flange plates of the H-shaped steel track (4) and can roll along the extending direction of the H-shaped steel track (4), and the rotating shaft of each roller (7) is connected to the sliding-resetting mechanism shell (6) through a bearing.
8. The automatic deployment device of the TBM-carried microseismic sensor as recited in claim 7, wherein the rotating shaft of the roller (7) is connected with the driving shaft of the corresponding roller driving motor (5), and the roller driving motor (5) is arranged on the sliding-resetting mechanism shell (6).
9. The automatic deployment device of the TBM-carried microseismic sensor as recited in claim 6, wherein the sliding-resetting mechanism shell (6) is provided with a camera (26) facing the rock wall.
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| CN202011004514.6A CN112177622B (en) | 2020-09-22 | 2020-09-22 | Automatic deployment device of TBM carrying microseismic sensor |
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| CN202011004514.6A CN112177622B (en) | 2020-09-22 | 2020-09-22 | Automatic deployment device of TBM carrying microseismic sensor |
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| CN112177622A true CN112177622A (en) | 2021-01-05 |
| CN112177622B CN112177622B (en) | 2021-07-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114658482A (en) * | 2022-03-28 | 2022-06-24 | 中国科学院武汉岩土力学研究所 | Automatic monitoring intelligent early warning system and method for rock burst micro-seismic in TBM construction |
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| CN108798690A (en) * | 2018-06-01 | 2018-11-13 | 中国科学院武汉岩土力学研究所 | Realize the combination type T BM and geology detecting driving method of geology detecting |
| CN208847843U (en) * | 2018-10-17 | 2019-05-10 | 湖北海震科创技术有限公司 | A kind of installation of microseismic sensors and recyclable device |
| CN111456752A (en) * | 2020-03-02 | 2020-07-28 | 中国科学院武汉岩土力学研究所 | Automatic dismounting device for TBM carrying microseism sensor |
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| CN2126655Y (en) * | 1992-05-29 | 1993-01-27 | 地质矿产部华东石油地质局第六物探大队 | Special gripper for underwater geophone |
| KR20080039369A (en) * | 2008-04-15 | 2008-05-07 | 주식회사 위드콘 | Non-vibration excavating method and apparatus |
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| CN114658482A (en) * | 2022-03-28 | 2022-06-24 | 中国科学院武汉岩土力学研究所 | Automatic monitoring intelligent early warning system and method for rock burst micro-seismic in TBM construction |
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| CN112177622B (en) | 2021-07-16 |
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