CN210685990U - Hydraulic-mechanical combined rock breaking TBM cutter head and TBM device thereof - Google Patents
Hydraulic-mechanical combined rock breaking TBM cutter head and TBM device thereof Download PDFInfo
- Publication number
- CN210685990U CN210685990U CN201921011941.XU CN201921011941U CN210685990U CN 210685990 U CN210685990 U CN 210685990U CN 201921011941 U CN201921011941 U CN 201921011941U CN 210685990 U CN210685990 U CN 210685990U
- Authority
- CN
- China
- Prior art keywords
- pressure water
- hydraulic
- mechanical
- water jet
- tbm
- 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.)
- Active
Links
Images
Abstract
The utility model discloses a broken rock TBM blade disc and TBM device thereof are united to water conservancy-machinery. The device comprises a cutter head main body, a mechanical hob structure and a high-pressure water jet nozzle structure; the mechanical hob structure is arranged on the cutter head main body; the mechanical hob structures are arranged at intervals; the high-pressure water jet nozzle structure is arranged on the cutter head main body and is positioned between the two mechanical hob structures which are arranged at intervals; and the high-pressure water jet nozzle structure and the mechanical hob structure which are arranged on the cutter head main body are circumferentially arranged. The utility model has the advantages of simple structure, broken rock efficiency is higher, and broken rock effect is better, and the wear rate is less.
Description
Technical Field
The utility model relates to a tunnel and underground works field, in particular to complicated geological conditions TBM tunnel construction field, more specifically says that it is the broken rock TBM blade disc of water conservancy-machinery combination. The utility model discloses still relate to the hydraulic power-mechanical combination broken rock TBM device that adopts the hydraulic power-mechanical combination broken rock TBM blade disc.
Background
The traditional TBM adopts a mechanical hob to break rock, and the TBM hob usually has three states when breaking rock, namely, too small penetration, proper penetration and too large penetration.
Under the condition of a certain distance between the hobbing cutters, when the penetration degree is too small, cracks generated below the cutter head can expand towards a rock breaking free surface (a tunnel face) and form triangular rock slag sheets, or horizontal cracks generated by two adjacent hobbing cutters cannot be converged, rock ridges between the hobbing cutters cannot be cut and damaged, and the rock breaking effect can be achieved by repeatedly breaking the rock for many times, but the method can cause the increase of rock breaking energy consumption and influence the rock breaking efficiency;
under the condition of a certain distance between the hobbing cutters, when the penetration degree is overlarge, the rock between the adjacent hobbing cutters is cut into fine rock slag pieces, particles and even powder, and the rock is excessively crushed, so that the energy consumption is increased and the cutters are abraded;
the proper penetration should result in the maximum range of rock breaking with minimum energy consumption and mechanism wear at a certain hob spacing.
The rock breaking penetration of the conventional mechanical constant-section disc cutter is determined by TBM parameters, and adjustment can be made according to different rock property types of the working face; however, since it is difficult to find a proper penetration degree of the TBM during construction, the loss of the cutting energy of the TBM and the abrasion of the cutter head are easily caused.
Chinese patent No.: CN103244119A, entitled "method and structure for arranging high-pressure water jet in heading machine cutterhead", the utility model discloses a method for arranging a plurality of high-pressure water nozzles on the basis of the main structure form of the traditional TBM cutterhead, such as spring time, Weijing, etc., the structural body of the method is arranged on the cutterhead, so as to improve the rock breaking efficiency of the TBM; the aim of improving the rock breaking efficiency of the TBM is fulfilled by adding a new module (high-pressure nozzle) to rearrange the cutter head; the installation position of a high-pressure water jet nozzle is arranged in front of a mechanical hob, and a mode of firstly cutting by water power and then mechanically rolling is adopted; the nozzle is arranged in front of the hob, the actual work is equivalent to cutting a hydraulic groove first, the mechanical hob is pressed later, and the rock breaking mode needs larger pressure.
Chinese patent No.: CN105736006A, entitled design method of cutter head of high-pressure water jet full-section rock tunnel boring machine, the utility model discloses a rock tunnel boring machine cutter head which changes the shape of the traditional circular cutter head, adopts the layout of two cross-shaped spokes, and carries out rock crushing by the impact of water jet on the four spokes and the rotary extrusion of the cutter, and is embodied on the cutter head layout, thereby reducing the energy consumption of rock crushing; but the overall structural form of the cutter head is greatly changed, and the industrial realizability degree is not high.
With the increasing development of society, the use requirements of tunnels and underground engineering on TBMs are higher and higher; therefore, the development of a rock breaking TBM tunneling device with high rock breaking efficiency, low rock breaking energy consumption and low mechanical wear is needed.
Disclosure of Invention
The utility model discloses a first purpose is in order to provide a hydraulic power-mechanical combined broken rock TBM blade disc, and high pressure water jet nozzle during operation water jet can be according to the procedure setting, in advance or synchronous mechanical hobbing cutter work, plays the purpose of jointly breaking rock, simple structure, and broken rock efficiency is higher, and broken rock effect is better, and the wear rate is less.
The second purpose of the utility model is to provide an adopt the hydraulic power-mechanical combination of the hydraulic power-mechanical combination broken rock TBM blade disc break rock TBM device, simple structure, broken rock efficiency is higher, broken rock energy consumption is less, the broken rock of completion bigger degree that can be better.
In order to realize the above, the utility model discloses a first purpose, the technical scheme of the utility model is: hydraulic power-mechanical combination broken rock TBM blade disc, its characterized in that: the device comprises a cutter head main body, a mechanical hob structure and a high-pressure water jet nozzle structure;
the mechanical hob structure is arranged on the cutter head main body; the mechanical hob structures are arranged at intervals;
the high-pressure water jet nozzle structure is arranged on the cutter head main body and is positioned between the two mechanical hob structures which are arranged at intervals;
and the high-pressure water jet nozzle structure and the mechanical hob structure which are arranged on the cutter head main body are circumferentially arranged.
In the technical scheme, the high-pressure water jet nozzle structure is positioned at the central point of the two mechanical hob structures which are arranged at intervals;
the high-pressure water jet spray head structure comprises a spray nozzle, a high-pressure water pipeline, an external spherical supporting mechanism, an internal spherical rotating mechanism and a pipeline steering controller;
the external spherical supporting mechanism is fixedly arranged on the cutter head main body;
the internal spherical rotating mechanism is positioned in the external spherical supporting mechanism; the pipeline steering controller is arranged between the internal spherical rotating mechanism and the external spherical supporting mechanism;
the high-pressure water pipeline sequentially penetrates through the external spherical supporting mechanism and the internal spherical rotating mechanism and extends out of the external spherical supporting mechanism; the high-pressure water pipeline is arranged on the internal spherical rotating mechanism;
the nozzle is installed at the end part of the high-pressure water pipeline and is positioned outside the external spherical supporting mechanism.
In order to realize the above, the utility model discloses a second purpose, the technical scheme of the utility model is: adopt the hydraulic power-mechanical combination of broken rock TBM device of broken rock TBM blade disc of hydraulic power-mechanical combination, its characterized in that: the device comprises a combined rock breaking TBM cutterhead, a rotary drive, a hydraulic feeding system, a water jet rotary adjusting part, an outer frame and a rear support; the outer frame is arranged on the periphery of the rotary drive; the rotary drive is positioned at the rear side of the combined rock breaking TBM cutterhead;
the hydraulic feeding system is positioned behind the outer frame; the rear support is located behind the hydraulic feed system.
In the technical scheme, the supporting shoe on the outer frame is positioned at the rear end of the propulsion oil cylinder and in front of the rear support; the belt conveyor is positioned at the inner side of the outer frame; a bucket is positioned at the front end of the belt conveyor; the water sump is located behind the rear support.
In the technical scheme, a motor, a torque and rotating speed sensor and a speed reducer are arranged in the rotary drive; the two ends of the torque and rotation speed sensor are respectively connected with the motor and the speed reducer;
the hydraulic feeding system comprises a propelling oil cylinder and a thrust rod, and the propelling oil cylinder is hinged with the thrust rod; the thrust rod is fixed at the rear end of the outer frame; the number of the propulsion oil cylinders is multiple.
In the technical scheme, the water jet rotary adjusting part comprises a high-pressure water pipeline butt joint and a water jet rotary adjusting part disc;
the butt joint of the high-pressure water pipeline is arranged on the water jet cutter rotation adjusting part disc; the periphery of the water jet cutter rotation adjusting part disc is fixed on the rotation driving inner wall;
the water jet cutter external water pipeline corresponds to the high-pressure water pipeline and is in butt joint with the high-pressure water pipeline through the high-pressure water pipeline butt joint port.
In the above technical scheme, the high-pressure water pipe butt joint comprises a high-pressure water pipe butt joint front end and a high-pressure water pipe butt joint rear end;
the rear end of the butt joint of the high-pressure water pipeline is connected with the external water pipeline of the water jet cutter;
the front end of the high-pressure water pipeline butt joint is connected with a high-pressure water pipeline.
In the technical scheme, a shield is arranged on the periphery of the outer frame; an oil hydraulic cylinder is arranged between the outer frame and the shield;
a plurality of oil hydraulic cylinders are provided;
the water pipe is connected to the water cutter in an extensible mode.
The utility model has the advantages of as follows:
(1) when the high-pressure water jet nozzle works, water jet can be set according to a program, and a mechanical hob can work in advance or synchronously, so that the purpose of jointly breaking rock is achieved; the high-pressure water jet nozzle can generate good rock breaking effect on the tunnel face by controlling and adjusting the spraying direction of the nozzle;
(2) the rock breaking device can better break rock to a greater extent; the utility model has proper penetration, can improve the rock breaking efficiency and reduce the energy consumption for rock breaking; the defects that in the prior art, under the condition of adopting two identical penetration degrees, the traditional mechanical rock breaking mode can only cut triangular rock slag slices and the penetration degree is easily too small or too large are overcome;
(3) the utility model cuts the groove and then cuts in the rock breaking sequence, and the two work simultaneously in time, so that the water mist generated by water jet can reduce the temperature of the mechanical cutter head part, and has positive significance for reducing mechanical abrasion;
(4) the utility model integrates and arranges the mechanical hob structure and the high-pressure water jet structure, optimizes the cutter head arrangement mode and forms a new cutter;
(5) the high-pressure water jet nozzle of the utility model is positioned along the radial direction of the rotation center of the cutter head and between two adjacent mechanical hob structures, and the high-pressure water jet nozzle structure and the mechanical hob structures are alternately arranged in the radial direction of the cutter head in the arrangement form of the cutter head; when the rock cutting work is carried out, a mechanical hob structure is arranged between two adjacent high-pressure water jet nozzles along the radial direction, the two adjacent high-pressure water jet nozzles firstly cut two hydraulic grooving, a boss is formed in the middle of the two hydraulic grooving, then the boss between the two hydraulic grooving is fractured by the mechanical hob structure, the rock breaking efficiency is higher, the maximum force applied by the cutter is reduced, the counter force born by the cutter is correspondingly reduced, the abrasion to the cutter is correspondingly reduced, and the rock breaking time is shortened;
(6) the utility model discloses do not change just can realize by a wide margin on current TBM blade disc basis, the industrial degree of realization is higher.
Drawings
Fig. 1 is the utility model discloses jointly broken rock TBM blade disc overlooks the structure sketch map.
Fig. 2 is the utility model discloses jointly break rock TBM blade disc nozzle arrangement diagram.
Fig. 3 is a schematic view of the structure of the high-pressure water jet head of the present invention.
Fig. 4 is the structure schematic diagram of the high-pressure water jet structure of the utility model.
Fig. 5 is a schematic view of the working structure of the present invention.
Fig. 6 is a schematic diagram of the hydraulic-mechanical TBM cutter head combined rock breaking of the present invention.
Fig. 7 is a schematic view of the structure of the external water pipeline of the water jet cutter of the present invention.
Fig. 8 is a schematic structural view of the water jet rotation adjusting part of the present invention.
Fig. 9 is the utility model discloses high pressure water pipeline butt joint structural schematic diagram.
Fig. 10 is a structural schematic diagram of a rock under-broken state when a mechanical rock breaking is performed in the prior art.
Fig. 11 is a schematic structural diagram of the optimal rock crushing state in rock crushing of a mechanical rock crusher in the prior art.
Fig. 12 is a schematic structural diagram of an over-broken state of rock during mechanical rock breaking in the prior art.
Fig. 13 is a working state diagram of the hydraulic grooving generated by hydraulic cutting before the mechanical hob is pressed in.
Fig. 14 is the utility model discloses jointly break rock TBM blade disc and penetrate operating condition chart.
Fig. 15 is the working structure diagram of the mechanical hob structure and the high-pressure water jet structure of the present invention.
In fig. 6, the direction a is the moving direction of the TBM of the present invention; as can be seen from fig. 6, the high-pressure water jet nozzle is located along the radial direction of the rotation center of the cutter head and between two adjacent mechanical hob structures, and in the arrangement mode of the cutter head, the high-pressure water jet nozzle structures and the mechanical hob structures are alternately arranged in the radial direction of the cutter head; when the rock cutting work is carried out, a mechanical hob structure is arranged between two adjacent high-pressure water jet nozzles along the radial direction, the two adjacent high-pressure water jet nozzles firstly cut two hydraulic grooving, a boss is formed in the middle of the two hydraulic grooving, and then the boss between the two hydraulic grooving is fractured by the mechanical hob structure; therefore, the rock breaking efficiency is higher, the maximum force applied by the cutter is reduced, the counter force borne by the cutter is correspondingly reduced, the abrasion to the cutter is correspondingly reduced, and the rock breaking time is shortened;
FIG. 10 is a diagram showing a state of too small rock penetration; in FIG. 10, B represents an unmerged horizontal crack; c represents a triangular rock slice; d represents a compact nucleus; m represents a mechanical hob on a prior art TBM cutterhead;
FIG. 11 is a diagram showing a suitable state of rock penetration; in fig. 11, D denotes a compact core; e represents an elliptical or plate-shaped rock chip; m represents a mechanical hob on a prior art TBM cutterhead;
FIG. 12 is a diagram showing a state of excessive rock penetration; in fig. 12, D denotes a compact core; f represents a laminated plate-shaped rock slag sheet; g represents a transverse rod sheet rock chip; m represents a mechanical hob on a prior art TBM cutterhead;
in fig. 13, H shows the crack caused by the water jet of the high-pressure water jet structure of the present invention;
in fig. 14, P denotes a hob penetration crack; h represents water jet induced cracking; j represents an elliptical or plate-shaped rock chip; in fig. 14, the utility model discloses the broken state of jointly broken rock is oval or plate-shaped rock sediment piece, and the penetration is less relatively.
Under the condition of adopting two kinds of same penetration degrees, the traditional mechanical rock breaking mode can only cut triangular rock slag slices, and the combined rock breaking mode adopting a hydraulic nozzle and a mechanical hob can well complete rock breaking to a greater extent.
The utility model discloses utilize the TBM blade disc arrangement mode of the combined broken rock of water conservancy-machinery, pass through water conservancy by the high-pressure water jet, in the intermediate position of two adjacent mechanical blade discs and the rotatory orbit the place ahead that the mechanical hobbing cutter turned to the same, water conservancy cutting can form the water conservancy grooving of certain width and degree of depth, water conservancy cutting process can be to the rock formation preliminary breakage of face, on this basis, the TBM mechanical hobbing cutter of grooving both sides follows up, rolls the face rock of roll extrusion water conservancy grooving both sides; the follow-up of the hob enables the rock fractures formed by the hydraulic cutting to extend and expand, and fractures between adjacent hobs are intersected (as shown in figures 13, 14 and 15); the rock mass between adjacent roller cutters is cut into oval or plate-shaped pieces of rock debris.
Compared with the prior art, the combined rock breaking mode of the utility model can improve the rock breaking efficiency and reduce the energy consumption for rock breaking; and simultaneously, the utility model discloses hydraulic nozzle-mechanical hobbing cutter is cutting after the grooving in the broken rock order, and in time, both are simultaneous working, and the water smoke that the water jet produced can reduce the temperature of mechanical hobbing cutter structure and blade disc part, equally has positive meaning to reducing mechanical wear.
In the figure, 1-a cutter head body, 2-a mechanical hob structure, 3-a high-pressure water jet nozzle structure, 3.1-a nozzle, 3.2-a high-pressure water pipeline, 3.3-an external spherical supporting mechanism, 3.4-an internal spherical rotating mechanism, 3.5-a pipeline steering controller, 4-a combined rock breaking TBM cutter head, 5-a rotary drive, 6-a hydraulic feeding system, 6.1-a propulsion oil cylinder, 6.2-a thrust rod, 7-a water knife rotary adjusting part, 7.1-a high-pressure water pipeline butt joint, 7.11-a high-pressure water pipeline butt joint front end, 7.12-a high-pressure water pipeline butt joint rear end, 7.2-a water knife rotary adjusting part disc, 8-an outer frame, 9-a rear support, 10-a belt conveyor, 11-a bucket, 12-a water sump, 13-a water knife external water pipeline, 14-supporting shoes on the outer frame, 15-shield, 16-oil hydraulic cylinder, 17-hydraulic grooving, 18-tunnel face and 19-mechanical hob track.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings, which are not intended to limit the present invention, but are merely exemplary. While the advantages of the invention will be clear and readily appreciated by the description.
With reference to the accompanying drawings: the hydraulic-mechanical combined rock breaking TBM cutterhead comprises a cutterhead main body 1, a mechanical hob structure 2 and a high-pressure water jet nozzle structure 3;
the mechanical hob structure 2 is arranged on the cutterhead main body 1; the mechanical hob structures 2 are arranged at intervals (as shown in fig. 1);
the high-pressure water jet nozzle structure 3 is mounted on the cutterhead main body 1 and is positioned between two adjacent mechanical hob structures 2 (as shown in fig. 1 and 2);
the high-pressure water jet nozzle structure 3 and the mechanical hob structure 2 which are arranged on the cutter head main body 1 are circumferentially arranged; when the high-pressure water jet nozzle works, water jet can be set according to a program, and a mechanical hob can work in advance or synchronously, so that the purpose of jointly breaking rock is achieved.
The high-pressure water jet nozzle structure 3 is positioned at the central point of two adjacent mechanical hob structures 2 (as shown in fig. 1 and fig. 2);
the high-pressure water jet spray head structure 3 comprises a spray nozzle 3.1, a high-pressure water pipeline 3.2, an external spherical supporting mechanism 3.3, an internal spherical rotating mechanism 3.4 and a pipeline steering controller 3.5;
the external spherical supporting mechanism 3.3 is fixedly arranged on the cutter head main body 1; the external spherical supporting mechanism is used as a frame for supporting the internal spherical rotating mechanism;
the internal spherical rotating mechanism 3.4 is positioned in the external spherical supporting mechanism 3.3; the inner spherical rotating mechanism can rotate relative to the outer spherical supporting mechanism and is controlled by the pipeline steering controller to rotate;
the pipeline steering controller 3.5 is arranged between the internal spherical rotating mechanism 3.4 and the external spherical supporting mechanism 3.3; the pipeline steering controller can detect the injection angle of the high-pressure water jet nozzle, and can drive the injection direction of the high-pressure water jet nozzle to rotate by pushing the internal spherical rotating mechanism by receiving an external command; the high-pressure water jet nozzle and the pipeline are arranged in the internal rotating mechanism, and the spraying angle is adjusted by the pipeline steering controller;
the high-pressure water pipeline 3.2 sequentially penetrates through the external spherical supporting mechanism 3.3 and the internal spherical rotating mechanism 3.4 and extends out of the external spherical supporting mechanism 3.3; the high-pressure water pipeline 3.2 is arranged on the internal spherical rotating mechanism 3.4; the internal spherical rotating mechanism 3.4 is used for supporting the high-pressure water pipeline 3.2 and the nozzle 3.1;
the nozzle 3.1 is installed at the end of the high-pressure water pipe 3.2 and located outside the external spherical supporting mechanism 3.3 (as shown in fig. 3 and 4) for spraying high-pressure water.
With reference to the accompanying drawings: the hydraulic-mechanical combined rock breaking TBM device adopting the hydraulic-mechanical combined rock breaking TBM cutterhead comprises the combined rock breaking TBM cutterhead 4, a rotary drive 5, a hydraulic feeding system 6, a water jet rotary adjusting part 7, an outer frame 8 and a rear support 9;
the outer frame 8 is arranged on the periphery of the rotary drive 5; providing support and protection for the rotary drive;
the rotary drive 5 is positioned at the rear side of the combined rock breaking TBM cutter head 4; the rotary driving drives the combined rock breaking TBM cutter head 4, the water jet rotary adjusting part 7 and the water jet external water pipeline 13 to synchronously rotate and tunnel;
the hydraulic feeding system 6 is positioned behind the outer frame 8; for propelling the TBM;
the rear support 9 is located behind the hydraulic feed system 6; the rear support is used for supporting the combined rock breaking TBM, so that the tunneling is convenient;
the water jet rotation adjusting part 7 is positioned on the rotation drive 5 and in front of the rotation drive 5 (as shown in fig. 5); the water jet rotation regulating part 7 rotates synchronously with the rotation driving device.
An upper supporting shoe 14 of the outer frame is positioned at the rear end of the propulsion oil cylinder 6.1 and in front of the rear support 9; the supporting shoes on the outer frame are used for tightly supporting the wall of the surrounding rock tunnel and fixing the TBM frame;
the belt conveyor 10 is positioned at the inner side of the outer frame 8 and at the inner side of the propulsion oil cylinder 6.1; a bucket 11 is positioned at the front end of the belt conveyor 10; the bucket is used for shoveling rock slag crushed by the cutter head and transporting the rock slag to the outside of the tunnel by the belt conveyer;
a water sump 12 is positioned behind the rear support 9; the rear support is used for supporting the combined rock breaking TBM, so that the tunneling is convenient;
the water bin 12 is provided with a water-jet external water pipeline 13 communicated with the high-pressure water pipeline 3.2; the water sump 12 provides high-pressure water for hydraulic cutting, and can control the flow rate of the high-pressure water by adjusting the water pressure of the high-pressure water;
the water jet external water pipeline 13 penetrates through the rotary drive 5, penetrates through the water jet rotary adjusting part 7 and is positioned in the combined rock breaking TBM cutter head 4; the water jet rotary adjusting part supplies water from a water sump at the rear part of the TBM through a water jet external water pipeline 13, and the water jet external water pipeline 13 can freely adjust the length of a water pipe along with the tunneling of the TBM;
a motor, a torque and rotating speed sensor and a speed reducer are arranged in the rotary drive 5; the two ends of the torque and rotation speed sensor are respectively connected with the motor and the speed reducer; the rotation of the combined rock breaking TBM cutterhead is controlled;
the hydraulic feeding system 6 comprises a propulsion oil cylinder 6.1 and a thrust rod 6.2, wherein the propulsion oil cylinder 6.1 is hinged with the thrust rod 6.2; the feed and the withdrawal are realized; the thrust rod 6.2 is fixed at the rear end of the outer frame 8;
a plurality of the propulsion oil cylinders 6.1 are provided; one end of the thrust cylinder 6.1 is fixed on the outer circumference of the thrust rod 6.2, and the other end is fixed on the supporting shoe 14 (shown in fig. 5) on the outer frame.
The water jet cutter rotation adjusting part 7 comprises a high-pressure water pipeline butt joint opening 7.1 and a water jet cutter rotation adjusting part disc 7.2; the water jet external water pipeline 13 corresponds to the high-pressure water pipeline 3.2 of the high-pressure water jet spray head structure 3 and is in butt joint with the high-pressure water pipeline butt joint port 7.1; the high-pressure water pipeline butt joint is of a connecting structure of external high-pressure water and rock breaking high-pressure water; the butt joints of the high-pressure water pipelines correspond to the positions of water knives on the combined rock breaking TBM cutter head one by one; when the TBM works, the water jet cutter external water pipeline can realize synchronous rotation with a TBM cutter head through butt joint of a high-pressure water pipeline butt joint port;
the high-pressure water pipeline butt joint opening 7.1 is formed in the water jet cutter rotation adjusting part disc 7.2; the periphery of the water jet rotation adjusting part disc 7.2 is fixed on the inner wall of the rotation drive 5; the water jet rotary adjusting part disc is a hole opening mechanism of a butt joint of the high-pressure water pipeline, and the water jet rotary adjusting part disc can rotate synchronously with the TBM hob.
A pressurizing device and an adjusting device are arranged in the water sump 12; the water sump is positioned on a laid track at the rear end of the TBM, so that water supply can be ensured; the water bin is internally provided with a pressurizing device and an adjusting device, can provide high-pressure water for hydraulic cutting, and can control the flow rate of the high-pressure water by adjusting the water pressure of the high-pressure water.
The high-pressure water pipeline butt joint port 7.1 comprises a high-pressure water pipeline butt joint port front end 7.11 and a high-pressure water pipeline butt joint port rear end 7.12; the rear end 7.12 of the high-pressure water pipeline butt joint is connected with the external water pipeline 13 of the water jet cutter; the front end 7.11 of the high-pressure water pipe butt joint is connected with the high-pressure water pipe 3.2 of the high-pressure water jet structure 3 (as shown in fig. 5, 8 and 9); the rear end of the high-pressure water pipeline butt joint is used for connecting an external high-pressure water inlet pipeline and is a fixing device; the front end of the butt joint of the high-pressure water pipeline is used for connecting a TBM cutter head high-pressure water jet cutter, the front end of the butt joint of the high-pressure water pipeline and the water jet cutter rotation adjusting part synchronously rotate, and further the front end of the butt joint of the high-pressure water pipeline and the TBM cutter head synchronously rotate; when the water jet type water jet device works, the external high-pressure water pipeline is in butt joint with the rear end of the butt joint of the high-pressure water pipeline, and the water jet channel is in butt joint with the front end of the butt joint of the high-pressure water pipeline, so that the synchronous realization of high-pressure water rotation and water inflow can be ensured.
A shield 15 is arranged on the periphery of the outer frame 8, and an oil hydraulic cylinder 16 is arranged between the outer frame 8 and the shield 15; a plurality of oil hydraulic cylinders 16 (shown in figure 1); the water-jet external water pipeline 13 is a telescopic water pipe (as shown in fig. 5 and 7), so that the moving frequency of the water sump equipment is reduced; the telescopic water pipe supplies water from a water sump at the rear part of the TBM, and the length of the water pipe can be freely adjusted along with the tunneling of the TBM.
Taking a sandstone sample with the size of 150mm multiplied by 100mm as an example, a penetration test (main normal force of TBM hob rock breaking) is carried out on the sandstone sample;
directly adopting a mechanical hob to carry out a penetration test on the white sandstone sample, wherein the maximum force required for destroying the white sandstone sample reaches 140 KN;
by adopting the utility model to carry out the injection experiment on the white sandstone sample, the utility model carries out the water jet pre-grooving treatment on the white sandstone sample, and then carries out the hob injection experiment, the maximum force required for destroying the white sandstone sample is only 40KN, the rock breaking force is reduced by more than 70 percent, and the time for the white sandstone sample after the grooving pretreatment to reach the breaking is shorter, so the rock breaking efficiency is higher, and the rock breaking speed is faster; likewise, as the maximum force exerted by the tool is reduced, the counter force to which the tool is subjected is correspondingly reduced, and the wear on the tool is correspondingly reduced;
the utility model discloses a water sword cutting causes that there is the crack to produce after the preliminary destruction of white sandstone sample, again through the hobbing cutter cutting, and the power of exerting reduces, and broken rock time shortens, and the broken rock degree of difficulty is lower relatively.
Therefore, compare with current traditional machinery hobbing cutter blade disc TBM, water conservancy-machinery TBM blade disc jointly broken rock method and blade disc and device thereof broken rock efficiency higher, the energy consumption is lower, wearing and tearing are less.
In order to explain more clearly the hydraulic-mechanical combined rock-breaking TBM cutterhead and TBM device thereof compare the advantages with the prior art (mechanical rock-breaking device and the existing TBM cutterhead high-pressure water jet nozzle and mechanical hob adopt simple superposition combination mode to break the rock device on the cutterhead) structure, the staff compares the two technical schemes, and the comparison result is as follows:
according to last table, water conservancy-machinery unite broken rock TBM blade disc and TBM device compare with prior art (the broken rock device of machinery and the broken rock device of simple stack compound mode of adoption on the blade disc of high pressure water jet nozzle and mechanical hobbing cutter on the blade disc of TBM blade disc) broken rock efficiency is higher, and broken rock energy consumption is less, and the blade disc wearability is less.
Other parts not described belong to the prior art.
Claims (9)
1. Hydraulic power-mechanical combination broken rock TBM blade disc, its characterized in that: comprises a cutterhead main body (1), a mechanical hob structure (2) and a high-pressure water jet nozzle structure (3);
the mechanical hob structure (2) is arranged on the cutterhead main body (1); the mechanical hob structures (2) are arranged at intervals;
the high-pressure water jet nozzle structure (3) is arranged on the cutter head main body (1) and is positioned between the two mechanical hob structures (2) which are arranged at intervals;
the high-pressure water jet nozzle structure (3) and the mechanical hob structure (2) which are arranged on the cutterhead body (1) are circumferentially arranged.
2. The hydraulic-mechanical combined rock breaking TBM cutterhead of claim 1, wherein: the high-pressure water jet nozzle structure (3) is positioned at the central point of the two mechanical hob structures (2) which are arranged at intervals;
the high-pressure water jet spray head structure (3) comprises a spray nozzle (3.1), a high-pressure water pipeline (3.2), an external spherical supporting mechanism (3.3), an internal spherical rotating mechanism (3.4) and a pipeline steering controller (3.5);
the external spherical supporting mechanism (3.3) is fixedly arranged on the cutter head main body (1);
the internal spherical rotating mechanism (3.4) is positioned in the external spherical supporting mechanism (3.3); the pipe steering controller (3.5) is arranged between the inner ball-type rotating mechanism (3.4) and the outer ball-type supporting mechanism (3.3).
3. The hydraulic-mechanical combined rock breaking TBM cutterhead of claim 2, wherein: the high-pressure water pipeline (3.2) sequentially penetrates through the external spherical supporting mechanism (3.3) and the internal spherical rotating mechanism (3.4) and extends out of the external spherical supporting mechanism (3.3); the high-pressure water pipeline (3.2) is arranged on the internal spherical rotating mechanism (3.4);
the nozzle (3.1) is installed at the end part of the high-pressure water pipeline (3.2) and is positioned outside the external spherical supporting mechanism (3.3).
4. The hydraulic-mechanical combined rock-breaking TBM device adopting the hydraulic-mechanical combined rock-breaking TBM cutterhead according to any one of claims 1-3, is characterized in that: the device comprises a combined rock breaking TBM cutter head (4), a rotary drive (5), a hydraulic feed system (6), a water jet rotary adjusting part (7), an outer frame (8) and a rear support (9); the outer frame (8) is arranged on the periphery of the rotary drive (5); the rotary drive (5) is positioned at the rear side of the combined rock breaking TBM cutter head (4);
the hydraulic feeding system (6) is positioned behind the outer frame (8); the rear support (9) is located behind the hydraulic feed system (6).
5. The hydraulic-mechanical combined rock-breaking TBM device according to claim 4, wherein: an upper supporting shoe (14) of the outer frame is positioned at the rear end of the propulsion oil cylinder (6.1) and in front of the rear support (9); the belt conveyor (10) is positioned at the inner side of the outer frame (8); a bucket (11) is positioned at the front end of the belt conveyor (10); the water sump (12) is located behind the rear support (9).
6. The hydraulic-mechanical combined rock-breaking TBM device according to claim 5, wherein: a motor, a torque and rotating speed sensor and a speed reducer are arranged in the rotary drive (5); the two ends of the torque and rotation speed sensor are respectively connected with the motor and the speed reducer;
the hydraulic feeding system (6) comprises a propulsion oil cylinder (6.1) and a thrust rod (6.2), wherein the propulsion oil cylinder (6.1) is hinged with the thrust rod (6.2); the thrust rod (6.2) is fixed at the rear end of the outer frame (8); the number of the propulsion oil cylinders (6.1) is multiple.
7. The hydraulic-mechanical combined rock-breaking TBM device according to claim 6, characterized in that: the water jet rotary adjusting part (7) comprises a high-pressure water pipeline butt joint port (7.1) and a water jet rotary adjusting part disc (7.2);
the high-pressure water pipeline butt joint port (7.1) is arranged on the water jet cutting rotation adjusting part disc (7.2); the periphery of the water jet rotation adjusting part disc (7.2) is fixed on the inner wall of the rotation drive (5);
an external water connecting pipeline (13) with a water knife corresponds to the high-pressure water pipeline (3.2) and is in butt joint with the high-pressure water pipeline (3.2) through the high-pressure water pipeline butt joint port (7.1).
8. The hydraulic-mechanical combined rock-breaking TBM device according to claim 7, characterized in that: the high-pressure water pipeline butt joint port (7.1) comprises a high-pressure water pipeline butt joint port front end (7.11) and a high-pressure water pipeline butt joint port rear end (7.12);
the rear end (7.12) of the butt joint of the high-pressure water pipeline is connected with the external water pipeline (13) of the water jet cutter;
the front end (7.11) of the butt joint of the high-pressure water pipeline is connected with the high-pressure water pipeline (3.2).
9. The hydraulic-mechanical combined rock-breaking TBM device according to claim 8, characterized in that: a shield (15) is arranged on the periphery of the outer frame (8); an oil hydraulic cylinder (16) is arranged between the outer frame (8) and the shield (15);
a plurality of oil hydraulic cylinders (16) are arranged;
the water jet external water pipeline (13) is a telescopic water pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921011941.XU CN210685990U (en) | 2019-07-02 | 2019-07-02 | Hydraulic-mechanical combined rock breaking TBM cutter head and TBM device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921011941.XU CN210685990U (en) | 2019-07-02 | 2019-07-02 | Hydraulic-mechanical combined rock breaking TBM cutter head and TBM device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210685990U true CN210685990U (en) | 2020-06-05 |
Family
ID=70899880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921011941.XU Active CN210685990U (en) | 2019-07-02 | 2019-07-02 | Hydraulic-mechanical combined rock breaking TBM cutter head and TBM device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210685990U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112196576A (en) * | 2020-10-19 | 2021-01-08 | 盾构及掘进技术国家重点实验室 | High-pressure water jet and hobbing cutter composite rock breaking nozzle buffering device |
| CN112483110A (en) * | 2020-11-04 | 2021-03-12 | 中国科学院武汉岩土力学研究所 | Rock breaking method and device of cutter head based on oblique cutting angle high-pressure ice jet flow space-time arrangement |
| CN112483112A (en) * | 2020-11-04 | 2021-03-12 | 中国科学院武汉岩土力学研究所 | Rock breaking method for widening upper wide structure and lower narrow structure of water cutting groove based on conical cutter |
| CN112483111A (en) * | 2020-11-04 | 2021-03-12 | 中国科学院武汉岩土力学研究所 | Rock ridge-free rock breaking method based on inclined high-pressure water jet and scraper arrangement |
| CN112504897A (en) * | 2020-11-04 | 2021-03-16 | 中国科学院武汉岩土力学研究所 | Combined rock breaking test device with sequential operation of high-pressure water jet and cutter and application |
| CN113700491A (en) * | 2021-09-08 | 2021-11-26 | 盾构及掘进技术国家重点实验室 | High-pressure water jet auxiliary rock breaking device of detachable shield machine |
-
2019
- 2019-07-02 CN CN201921011941.XU patent/CN210685990U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112196576A (en) * | 2020-10-19 | 2021-01-08 | 盾构及掘进技术国家重点实验室 | High-pressure water jet and hobbing cutter composite rock breaking nozzle buffering device |
| CN112483110A (en) * | 2020-11-04 | 2021-03-12 | 中国科学院武汉岩土力学研究所 | Rock breaking method and device of cutter head based on oblique cutting angle high-pressure ice jet flow space-time arrangement |
| CN112483112A (en) * | 2020-11-04 | 2021-03-12 | 中国科学院武汉岩土力学研究所 | Rock breaking method for widening upper wide structure and lower narrow structure of water cutting groove based on conical cutter |
| CN112483111A (en) * | 2020-11-04 | 2021-03-12 | 中国科学院武汉岩土力学研究所 | Rock ridge-free rock breaking method based on inclined high-pressure water jet and scraper arrangement |
| CN112504897A (en) * | 2020-11-04 | 2021-03-16 | 中国科学院武汉岩土力学研究所 | Combined rock breaking test device with sequential operation of high-pressure water jet and cutter and application |
| CN112483110B (en) * | 2020-11-04 | 2021-10-19 | 中国科学院武汉岩土力学研究所 | Rock breaking method and device of cutter head based on oblique cutting angle high-pressure ice jet flow space-time arrangement |
| CN112483111B (en) * | 2020-11-04 | 2021-11-05 | 中国科学院武汉岩土力学研究所 | Rock ridge-free rock breaking method based on inclined high-pressure water jet and scraper arrangement |
| CN112483112B (en) * | 2020-11-04 | 2022-01-14 | 中国科学院武汉岩土力学研究所 | Rock breaking method for widening upper wide structure and lower narrow structure of water cutting groove based on conical cutter |
| CN112504897B (en) * | 2020-11-04 | 2022-04-29 | 中国科学院武汉岩土力学研究所 | Combined rock breaking test device with sequential operation of high-pressure water jet and cutter and application |
| CN113700491A (en) * | 2021-09-08 | 2021-11-26 | 盾构及掘进技术国家重点实验室 | High-pressure water jet auxiliary rock breaking device of detachable shield machine |
| CN113700491B (en) * | 2021-09-08 | 2023-12-01 | 盾构及掘进技术国家重点实验室 | Detachable high-pressure water jet auxiliary rock breaking device of shield tunneling machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210685990U (en) | Hydraulic-mechanical combined rock breaking TBM cutter head and TBM device thereof | |
| CN110295915B (en) | Combined rock breaking TBM complex stratum tunneling method for realizing three-way force detection | |
| CN107916939B (en) | Cutter head of full-section hard rock tunnel boring machine and boring method | |
| CN106761805B (en) | Laser full face rock tunnel boring machine cutterhead design method | |
| CN110821510A (en) | High-pressure water jet edge cutter and combined rock breaking and trapped-freeing TBM cutter head and method thereof | |
| CN110985032B (en) | Hydraulic-mechanical combined rock breaking TBM device and rock breaking method thereof | |
| CN102364049B (en) | Hard rock composite TBM (Tunnel Boring Machine) suitable for composite stratum and tunneling mode thereof | |
| CN110318765B (en) | Mechanical-hydraulic combined rock breaking TBM real-time tunneling method based on lithology recognition | |
| CN103244119A (en) | Distribution method and distribution structure of high-pressure water jet in heading machine cutterhead | |
| CN107130961B (en) | Cutting part of coal rock heading machine and application thereof | |
| CN110847926A (en) | Hydraulic cutting tool module and combined rock breaking TBM device and method | |
| CN211648175U (en) | Hydraulic cutting tool module and hydraulic-mechanical combined rock breaking TBM device | |
| CN110259474A (en) | Thread hob hydraulic-mechanical TBM cutterhead combined-breaking rock method and its digging device | |
| CN110529134A (en) | High-pressure hydraulic auxiliary driving cutterhead for balancing earth-pressure shielding machine | |
| CN108825260B (en) | TBM cutter head for assisting in breaking rock through vibration impact and arrangement method thereof | |
| CN210685992U (en) | Double-hob tunneling equipment for hydraulic-mechanical TBM cutter head combined rock breaking | |
| CN112483107B (en) | Inner and outer cutter TBM device based on pulse jet flow and point treatment | |
| CN211342923U (en) | Hydraulic-mechanical combined rock breaking TBM device | |
| CN113790060B (en) | Drilling and tunneling equipment and method | |
| CN211342922U (en) | High-pressure water jet side cutter and hydraulic-mechanical combined rock breaking and trapped-escaping TBM cutter head | |
| CN113338975B (en) | Impact type tunneling machine capable of turning | |
| CN112096408A (en) | Tunneling machine and composite cutter head for tunneling machine | |
| CN113338965B (en) | Combined rock breaking construction method and tunneling equipment thereof | |
| CN211524816U (en) | TBM (tunnel boring machine) hydraulic coupling rock breaking hobbing cutter device for high-abrasion stratum | |
| CN210685991U (en) | Mechanical-hydraulic combined rock breaking TBM tunneling equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |