CN211342922U - High-pressure water jet side cutter and hydraulic-mechanical combined rock breaking and trapped-escaping TBM cutter head - Google Patents
High-pressure water jet side cutter and hydraulic-mechanical combined rock breaking and trapped-escaping TBM cutter head Download PDFInfo
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- CN211342922U CN211342922U CN201921808712.0U CN201921808712U CN211342922U CN 211342922 U CN211342922 U CN 211342922U CN 201921808712 U CN201921808712 U CN 201921808712U CN 211342922 U CN211342922 U CN 211342922U
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Abstract
The utility model discloses a high pressure water jet limit sword. The device comprises an edge cutter mechanical structure, an edge cutter high-pressure water jet pipeline and an edge cutter high-pressure water jet nozzle; the side cutter high-pressure water jet pipeline is positioned inside the side cutter mechanical structure; the edge cutter high-pressure water jet nozzle is embedded in the edge cutter mechanical structure and is communicated with the edge cutter high-pressure water jet pipeline. The utility model has the advantages of spray high pressure water and send and split the rock, solve the TBM card machine problem. The utility model also discloses a hydraulic power-mechanical combination broken rock TBM blade disc of getting rid of poverty.
Description
Technical Field
The utility model relates to a tunnel and underground works technical field, in particular to complicated geological conditions TBM tunnel construction field, more specifically says that it is high-pressure water jet limit sword. The utility model discloses still relate to the hydraulic power-mechanical combination broken rock TBM blade disc of getting rid of poverty.
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 too large, the rocks between the adjacent hobbing cutters are cut into fine rock slag pieces, particles and even powder, and the rocks are excessively crushed, so that the increase of energy consumption and the grinding of the cutters are caused; 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, adjustment can be performed according to different rock types of the working face, but adjustment can be performed only on one rock type of the working face at each time, and due to the fact that the bottom layer geology is complex and the rocks of various rock types are arranged in a staggered mode, the conventional mechanical rock breaking is performed, so that the efficiency is low, the rock breaking energy consumption is high, and the cutter is easy to wear; and because it is difficult to find the proper TBM penetration degree in the construction process, the TBM cutting energy loss and cutter head abrasion are easily caused.
The conventional hob structure adopted in the existing TBM rock breaking method is that the first rock breaking mode is as follows: breaking rock by using a common roller type hob; the second rock breaking mode is as follows: randomly punching a pattern water jet structure on the blank position of a TBM cutter head, arranging the water jet structure and a common roller type hob at intervals, and breaking rock by adopting hydraulic power and machinery;
however, when the first rock breaking mode is adopted for rock breaking, the maximum force required for rock breaking is large, the hob is easy to wear, and the rock breaking efficiency is low;
adopt above-mentioned second kind to break rock mode and break rock, be as if application number: 201310188881.X, the patent name is 'arrangement method and structure of high-pressure water jet in heading machine cutterhead'; on the basis of the main structure form of the traditional TBM cutter head, a plurality of high-pressure water nozzles are randomly arranged at the blank position of the TBM cutter head, so that the rock breaking efficiency of the TBM is improved, the temperature of the cutter head is reduced, and the environment is protected from dust and is cooled; however, the TBM cutter head is specially provided with the hole for mounting the high-pressure water cutter, so that the structure is complex, the mechanical hob is randomly cooled, no pertinence is provided, and the TBM cutter head is in a normally open state, so that water resource waste is easily caused, the rock breaking energy consumption is high, and the expected effect cannot be achieved.
If the application number is CN105736006A, the patent name is 'design method of cutter head of high-pressure water jet full-section rock tunnel boring machine', the utility model discloses the shape of traditional circular cutter head is changed around Huoharmy, the river winters, etc., two cross-shaped spoke layouts are adopted, rock crushing is carried out through the impact of water jet on four spokes and the rotary extrusion of the cutter, and the energy consumption for rock crushing is reduced; but the traditional TBM cutter head is greatly changed, the cost is high, and the realization and the application are not facilitated.
In addition, in the process of tunneling and breaking rocks of the TBM tunnel boring machine, due to the influence of ground stress and rock strength characteristics, a TBM cutter head is possibly blocked, the tunneling efficiency of the TBM is seriously influenced, and serious equipment damage and property loss are caused.
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 which has high rock breaking efficiency, low rock breaking energy consumption and low mechanical wear and can solve the problem of blocking of the TBM is urgently needed.
Disclosure of Invention
The utility model has the first purpose that the high-pressure water jet edge cutter is provided, when the TBM high-pressure water jet edge cutter is installed, a certain inclination angle is formed between the TBM high-pressure water jet edge cutter and the plane of a TBM cutter head, and the generated high-pressure water jet is inclined to jet high-pressure water to crack a rock expanding tunnel face; the problem of TBM card machine is solved.
The second purpose of the utility model is to provide a hydraulic-mechanical combined rock breaking and escaping TBM cutter head, which can assist in breaking the circumferential rocks of the TBM cutter head during the TBM tunneling work; when the TBM is started and is trapped, the high-pressure water jet edge cutter can assist the TBM cutter head to escape from the trapping.
In order to realize the above, the utility model discloses a first purpose, the technical scheme of the utility model is: high-pressure water jet limit sword, its characterized in that: the device comprises an edge cutter mechanical structure, an edge cutter high-pressure water jet pipeline and an edge cutter high-pressure water jet nozzle;
the side cutter high-pressure water jet pipeline is positioned inside the side cutter mechanical structure;
the edge cutter high-pressure water jet nozzle is embedded in the edge cutter mechanical structure and is communicated with the edge cutter high-pressure water jet pipeline.
In the above technical scheme, the edge cutter mechanical structure is a trapezoidal tooth cutter or a sector scraper.
In the technical scheme, the side cutter mechanical structure is provided with a through hole structure; the side cutter high-pressure water jet pipeline and the side cutter high-pressure water jet nozzle are both positioned in the through hole structure.
In order to realize the above, the utility model discloses a second purpose, the technical scheme of the utility model is: the hydraulic-mechanical combined rock breaking and escaping TBM cutterhead comprises a TBM cutterhead structure and a mechanical hob structure, and is characterized in that: the high-pressure water jet edge cutter is also included; the high-pressure water jet side cutter is used for cracking a rock stratum causing the TBM cutter head structure to be stuck, so that the TBM cutter head structure is trapped;
the high-pressure water jet edge cutter is obliquely arranged on the circumference of the TBM cutter head structure;
the mechanical hob structure is circumferentially arranged on the TBM cutterhead structure and is arranged at intervals.
In the technical scheme, the hydraulic cutting device further comprises a hydraulic cutting tool; the hydraulic cutting tools are circumferentially arranged on the TBM cutter head structure and are arranged at intervals;
the hydraulic cutting tool is arranged between two mechanical hobbing cutter structures which are arranged at intervals in the radial direction.
In the technical scheme, the hydraulic cutting tool is arranged in the center position between the two mechanical hob structures which are arranged at intervals.
In the technical scheme, the high-pressure water jet edge cutter is arranged on the periphery of the TBM cutter head structure.
In the technical scheme, the hydraulic cutting tool comprises a high-pressure water pipeline, a rolling wheel and a tool middle shaft;
the high-pressure water pipeline is arranged on the rolling wheel;
the rolling wheel is arranged on the middle shaft of the cutter;
the cutter middle shaft is arranged on the TBM cutter head structure.
In the above technical solution, the rolling wheel is at least one of a roller and a double roller.
The utility model has the advantages of as follows:
(1) the invention is provided with a high-pressure water jet pipeline and a nozzle, and the functions of the high-pressure water jet pipeline and the nozzle comprise: the tunnel is enlarged, so that the difficulty in enlarging and excavating the tunnel face is reduced; assisting in getting rid of difficulties when the TBM is stuck; high-pressure water flows in the edge cutter, and water mist formed when the nozzle sprays can cool the edge cutter, so that the abrasion of a mechanical cutter of the edge cutter is reduced; the spraying angle of the high-pressure water jet edge cutter can be adjusted to adapt to multi-angle spraying during the blocking process;
(2) the utility model discloses set up high-pressure water jet limit sword, when TBM blade disc card machine, the high-pressure water jet nozzle in the high-pressure water jet limit sword increases water pressure, provides the water pressure of higher intensity, and the broken fracture causes the rock stratum of TBM blade disc card machine, combines the cooperative operation of other cutters on the TBM blade disc, impels TBM to get rid of poverty; the high-pressure water jet edge cutter is arranged on the outermost side circumference of the TBM cutter head, and plays a role in expanding and digging broken rocks; the utility model has the advantages that the edge cutter high-pressure water jet pipeline is positioned inside the edge cutter mechanical structure, the edge cutter high-pressure water jet nozzle is embedded inside the edge cutter mechanical structure, and the edge cutter high-pressure water jet pipeline and the edge cutter high-pressure water jet nozzle are protected by the edge cutter mechanical structure to prevent damage;
(3) the high-pressure water jet edge cutter of the utility model forms a certain inclination angle with the plane of the TBM cutter head when being installed, therefore, the high-pressure water jet nozzle of the edge cutter can obliquely spray high-pressure water to crack rocks; the TBM tunneling machine is characterized in that a high-pressure water jet side cutter is mounted on a TBM cutter disc, and the high-pressure water jet side cutter has two functions, wherein one of the two functions is that the TBM tunneling machine assists in crushing rocks in the circumferential direction of the TBM cutter disc during tunneling work (according to actual needs, the high-pressure water jet in the high-pressure water jet side cutter can be controlled to be opened and closed); secondly, when the TBM is started, the high-pressure water jet side cutter can assist the TBM cutter head to get rid of difficulties; the phenomenon that a TBM cutter head is blocked due to the influence of ground stress and rock strength characteristics is avoided, the tunneling efficiency of the TBM is seriously influenced, and the conditions of serious equipment damage and property loss are avoided;
(4) the high-pressure water jet nozzle and the pipeline of the utility model are provided with the protection mechanism, which can play the role of reducing the abrasion of the nozzle; the high-pressure water jet nozzle of the utility model can be replaced, thus prolonging the service life of the cutter;
(5) the utility model discloses innovate the arrangement mode of a new water conservancy-mechanical combination broken rock TBM blade disc, utilize on the blade disc mechanical hobbing cutter interval central point to put and install hydraulic cutting tool additional and replace the simple stack combination mode on the blade disc of high-pressure water jet nozzle of current TBM blade disc and mechanical hobbing cutter, under the prerequisite that does not change the propulsion mode of current TBM support, adjust the adaptability of hydraulic pipeline, improve the broken rock ability of high-pressure water jet, redefine to the tunnelling working method of the hydraulic power-mechanical combination broken rock TBM;
(6) the utility model can improve the rock breaking efficiency, reduce the energy consumption of rock breaking, reduce the mechanical abrasion, and has great significance for improving the engineering progress and reducing the engineering cost;
(7) 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 a schematic view of the high-pressure water jet edge cutter of the present invention.
Fig. 2 is a schematic side view of the high-pressure water jet edge cutter of the present invention.
Fig. 3 is a schematic view of the hydraulic-mechanical combined rock breaking and escaping TBM cutter head overlooking structure of the present invention.
Fig. 4 is a working schematic diagram of the hydraulic-mechanical combined rock breaking and escaping TBM device adopting the hydraulic-mechanical combined rock breaking and escaping TBM cutter head of the present invention.
Fig. 5 is the rock breaking schematic diagram of the hydraulic cutting tool of the utility model.
Fig. 6 is a schematic structural view of the hydraulic cutting tool of the present invention as a roller.
In fig. 4, E denotes the rock face before cutting (i.e., the face; the face represents only one face, and is the exposed rock face in front of the TBM (the rock wall directly opposite the tunnel before opening), and E is the rock mass to be excavated in the advancing direction of the TBM).
In fig. 5, M denotes the TBM rotation direction; t1 shows the water jet cutting trace and direction behind the first hydraulic cutter (i.e., the water jet cutting trace and direction formed by the first hydraulic cutter cutting rock with high pressure water jet); s1 denotes a first hydraulic cutter; t2 shows the water jet cutting groove trace and direction behind the second hydraulic cutting tool; s2 denotes a second hydraulic cutter; t3 shows the water jet cutting groove trace and direction behind the third hydraulic cutter; s3 denotes a third hydraulic cutter; t4 shows the water jet cutting groove trace and direction behind the fourth hydraulic cutter; s4 denotes a fourth hydraulic cutter; t5 shows the water jet cutting groove trace and direction behind the fifth hydraulic cutter; s5 denotes a fifth hydraulic cutter; t6 shows the water jet cutting groove trace and direction behind the sixth hydraulic cutter; s6 denotes a sixth hydraulic cutter.
In the figure, 1-edge cutter mechanical structure, 1.1-through hole structure, 2-edge cutter high-pressure water jet pipeline, 3-edge cutter high-pressure water jet nozzle, 4-high-pressure water jet edge cutter, 4.1-edge cutter communication pipeline, 5-TBM cutter head structure, 6-mechanical hob cutter structure, 7-hydraulic cutting cutter, 7.1-high-pressure water pipeline, 7.2-rolling wheel, 7.3-cutter middle shaft, 7.4-nozzle, 8-TBM cutter head, 9-TBM device, 10-outer frame, 11-outer frame upper supporting shoe, 12-rotary drive, 13-propulsion oil cylinder, 14-rear support, 15-bucket, 16-belt conveyor and 18-water cutter groove are formed.
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 high-pressure water jet edge cutter comprises an edge cutter mechanical structure 1, an edge cutter high-pressure water jet pipeline 2 and an edge cutter high-pressure water jet nozzle 3;
the side cutter high-pressure water jet pipeline 2 is positioned inside the side cutter mechanical structure 1;
the side cutter high-pressure water jet nozzle 3 is embedded in the side cutter mechanical structure 1 and is communicated with the side cutter high-pressure water jet pipeline 2; the edge-knife high-pressure water jet nozzle 3 is used for jetting high-pressure water to crack rock (shown in figure 2).
Further, the side cutter mechanical structure 1 is a trapezoidal toothed cutter or a sector scraper; the trapezoidal toothed cutter or the sector scraper is in the structural form of a common scraper and a toothed cutter, and has good mechanical structural characteristics.
Further, the side cutter mechanical structure 1 is provided with a through hole structure 1.1; the side cutter high-pressure water jet pipeline 2 and the side cutter high-pressure water jet nozzle 3 are both positioned in the through hole structure 1.1 (as shown in figures 1 and 2); the edge cutter mechanical structure 1 is used for protecting the edge cutter high-pressure water jet pipeline 2 and the edge cutter high-pressure water jet nozzle 3 and reducing the abrasion of the edge cutter high-pressure water jet pipeline 2 and the edge cutter high-pressure water jet nozzle 3.
With reference to the accompanying drawings: the hydraulic-mechanical combined rock breaking and escaping TBM cutterhead comprises a TBM cutterhead 5 and a mechanical hob structure 6, and is characterized in that: the high-pressure water jet edge cutter 4 is also included; the high-pressure water jet side cutter 4 is used for cracking a rock stratum causing the TBM cutter head 5 to be stuck, so that the TBM cutter head 5 is trapped;
the high-pressure water jet edge cutters 4 are obliquely arranged on the TBM cutter head 5 and are positioned on the circumference of the TBM cutter head 5; when being installed, the high-pressure water jet edge cutter 4 forms a certain inclination angle with the plane of the TBM cutter head, so that the edge cutter high-pressure water jet nozzle can obliquely jet high-pressure water to crack rocks; the TBM tunneling machine is characterized in that a high-pressure water jet side cutter is mounted on a TBM cutter disc, and the high-pressure water jet side cutter has two functions, wherein one of the two functions is that the TBM tunneling machine assists in crushing rocks in the circumferential direction of the TBM cutter disc during tunneling work (according to actual needs, the high-pressure water jet in the high-pressure water jet side cutter can be controlled to be opened and closed); secondly, when the TBM is started, the high-pressure water jet side cutter can assist the TBM cutter head to get rid of difficulties;
the mechanical hob structure 6 is circumferentially installed on the TBM cutter head structure 5 and is arranged at intervals (as shown in fig. 3 and 4).
Further, a hydraulic cutting tool 7 is also included; the hydraulic cutting tools 7 are circumferentially arranged on the TBM cutter head structure 5 and are arranged at intervals;
the hydraulic cutting tool 7 is arranged between two mechanical hob structures 6 which are arranged at intervals in the radial direction; and the mechanical and hydraulic combined rock breaking is adopted, so that the rock breaking efficiency is improved.
Further, the hydraulic cutting tool 7 is arranged at the central position between two mechanical hob structures 6 which are arranged at intervals; when the hydraulic cutting tool and the built-in high-pressure water jet nozzle work, water jet can be set according to a program, and the high-pressure water jet channel valve is arranged to control the mechanical hob structure to work in advance or synchronously, so that the purpose of combined rock breaking is achieved.
Further, the high-pressure water jet edge cutters 4 are mounted on the periphery of the TBM cutter head structure 5, namely on the cutter head outer ring; the inner diameter of the cutter head outer ring is equal to the inner diameter of the TBM cutter head 5; the high-pressure water jet edge cutters 4 are arranged on the outermost side circumference of the TBM cutter head and play a role in expanding and digging broken rocks.
Further, the hydraulic cutting tool 7 comprises a high-pressure water pipeline 7.1, a rolling wheel 7.2 and a tool middle shaft 7.3;
the high-pressure water pipeline 7.1 is arranged on the rolling wheel 7.2 or is arranged on the cutter middle shaft 7.3;
the rolling wheel 7.2 is arranged on the cutter middle shaft 7.3;
the cutter middle shaft 7.3 is installed on the TBM cutter head structure 5 (as shown in figures 3 and 6).
Further, the rolling wheel 7.2 is at least one of a roller wheel and a double roller wheel.
When the rolling wheel 7.2 is a roller wheel, the hydraulic cutting tool 7 and the application number filed by the applicant are as follows: 201921011944.3, the hydraulic cutting hob cutter described in the patent of TBM tunneling equipment with mechanical-hydraulic combined rock breaking is the same in structure (as shown in figure 6);
when the rolling wheel 7.2 is a double-rolling wheel, the application number reported by the applicant is as follows: 201921012070.3, the patent names: the hydraulic cutting double-hob cutters described in the patent of the hydraulic-mechanical TBM cutter head combined rock breaking double-hob tunneling device are identical in structure.
The rolling wheel 7.2 can be arranged to be in other structures according to the rock breaking requirement.
With reference to the accompanying drawings: the rock breaking and escaping method of the hydraulic-mechanical combined rock breaking and escaping TBM device adopting the hydraulic-mechanical combined rock breaking and escaping TBM cutterhead comprises a TBM device 9, wherein the TBM device adopts the hydraulic-mechanical combined rock breaking and escaping TBM cutterhead 8;
the method comprises the following steps: aligning the hydraulic-mechanical combined rock breaking and escaping TBM cutter head 8 to the position (namely, the tunnel face) when the tunnel is to be excavated;
step two: fixing an outer frame 10, starting a hydraulic-mechanical combined rock breaking and escaping TBM cutter head 8, and tunneling a stroke forwards by a TBM device 9;
the supporting shoes 11 on the outer machine frame support the surrounding rock tunnel wall tightly and fix the machine frame of the TBM device 9;
the hydraulic-mechanical combined rock breaking and escaping TBM cutterhead 8 is driven to rotate by a rotary drive 12, a thrust oil cylinder 13 applies thrust to the hydraulic-mechanical combined rock breaking and escaping TBM cutterhead 8, the TBM is slowly pushed out and tunneled forwards, and a rear support 14 provides support;
the mechanical hob structure 6 and the hydraulic cutting tool 7 rotate per se and simultaneously rotate along with the hydraulic-mechanical combined rock breaking and escaping TBM cutterhead 8, so that rock mass is synchronously broken;
rock slag generated by the broken rock mass is shoveled into a belt conveyor 16 by a bucket 15, and finally is transported to the machine for unloading; the propulsion oil cylinder 13 extends for a stroke, and the TBM device 9 correspondingly moves forwards for a stroke;
when the hydraulic-mechanical combined rock breaking and escaping TBM cutterhead 8 is blocked, the high-pressure water jet nozzle in the high-pressure water jet side cutter 4 increases water pressure, provides higher-strength water pressure (a proper ultrahigh-pressure water generator is selected according to actual excavation geological conditions), and breaks and cracks the rock stratum causing the blocking of the hydraulic-mechanical combined rock breaking and escaping TBM cutterhead 8, and the mechanical hob structure 6 and the hydraulic cutting tool 7 on the hydraulic-mechanical combined rock breaking and escaping TBM cutterhead 8 cooperate with the high-pressure water jet side cutter 4 to promote TBM escaping (as shown in fig. 3 and 4);
step three: repeating the first step and the second step, and starting the next stroke operation until the tunneling reaches a specified distance, namely, the excavation is finished (as shown in figure 4); the combined rock breaking TBM is used for tunnel excavation, when the TBM works, a mechanical hob structure and a high-pressure hydraulic cutting tool are installed on a combined rock breaking TBM cutter head by workers, and the cutter arranged on the TBM cutter head has enough strength and rigidity and can bear huge reaction force and shearing stress generated by the rotation propulsion of the cutter head when a host machine tunnels. And the rotary drive controls the combined rock breaking TBM cutter head to rotate, and the propulsion oil cylinder propels the TBM cutter head to tunnel forwards. In the tunneling process, the supporting shoes on the outer rack are used for supporting the wall of the surrounding rock tunnel and fixing the TBM rack, and the rear support is used for supporting the combined rock breaking TBM, so that the tunneling is facilitated; the bucket is used for shoveling rock slag crushed by the cutter head and is transported out of the hole by the belt conveyer.
In the tunneling process, the supporting device behind the TBM cutter disc tightly connects the tunnel segment with surrounding rock masses in modes of guniting anchoring and the like to form a complete supporting system.
In the second step, the mechanical hob structure 6 and the hydraulic cutting tool 7 are used for breaking rock synchronously, which is as follows:
when the hydraulic cutting tool 7 breaks rocks, the rolling wheel 7.2 rolls on the face of the tunnel to drive the high-pressure water pipeline 7.1 to move; a nozzle 7.4 is arranged on the high-pressure water pipeline 7.1, and the high-pressure water pipeline 7.1 sprays high-pressure water jet to the palm surface through the nozzle 7.4 to form a water jet cutting groove 18 (shown in figures 4 and 5);
the mechanical hob structure 6 rolls over the face rock on both sides of the water jet cutting groove 18, so that the rock debris collapses.
As shown in fig. 4, the TBM device 9 includes a TBM cutter head, an outer frame 10, an outer frame upper support shoe 11, a rotary drive 12, a thrust cylinder 13, a rear support 14, a bucket 15, a belt conveyor 16, a shield, an oil hydraulic cylinder, a telescopic water pipe, a water jet rotation adjusting part and a water sump; the TBM cutter head structure 23 is arranged at the front end of the rotary drive 12 and is positioned at the front side of the outer frame 10; the outer frame 10 is located outside the rotary drive 12; the shield 18 is positioned on the side of the outer frame 10 and connected with the outer frame 10 through the oil hydraulic cylinder; the outer frame upper supporting shoe 11 is positioned behind the outer frame 10 and is connected with the outer frame 10 through the propulsion oil cylinder 13; the rear support 14 is positioned behind the supporting shoe 11 on the outer frame; the belt conveyor 16 is positioned inside the outer frame 10, and the bucket 15 is positioned at the front end of the belt conveyor 16 and at the front end of the outer frame 10; the high-pressure water pipeline butt joint of the water jet rotary adjusting part is of a connecting structure of external high-pressure water and rock breaking high-pressure water; the water bin is positioned behind the rear support; 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; one end of the telescopic water pipe is communicated with the water jet rotation adjusting part, the other end of the telescopic water pipe is communicated with the water bin, and is communicated with the edge knife high-pressure water jet pipeline 2 through an edge knife communicating pipeline 4.1; the TBM cutter head adopted by the TBM device 9 of the utility model is the hydraulic-mechanical combined rock breaking and escaping TBM cutter head 8 of the utility model; one end of the edge knife high-pressure water jet pipeline 2 is communicated with the edge knife high-pressure water jet nozzle, and the other end of the edge knife high-pressure water jet pipeline is communicated with one end, close to the water knife rotation adjusting part, of the high-pressure water pipeline 7.1 (as shown in figure 4).
The rotary drive of the TBM device 9 is positioned behind the combined rock breaking TBM cutterhead, and the propulsion oil cylinder is positioned outside the TBM frame and behind the outer frame and used for propelling the TBM; the rotary adjusting part is positioned in the front part of the rotary driving device and can synchronously rotate along with the rotary driving device; the combined rock breaking TBM working system comprises a transmission box body and a hydraulic feeding system; the rotary driving device is internally provided with a motor, a torque rotating speed sensor and a speed reducer, the two ends of the torque rotating speed sensor are respectively connected with the motor and the speed reducer and used for controlling the rotation of the combined rock breaking TBM cutter head, the hydraulic feeding system comprises a propelling oil cylinder, and the propelling oil cylinder is hinged with a thrust rod and connected with a pressure sensor to realize the feed and withdrawal of a cutter.
Mechanical hob structure, TBM blade disc are prior art.
In order to illustrate more clearly, the high-pressure water jet edge cutter and the hydraulic-mechanical combined rock breaking and escaping TBM cutter head have the advantages of being compared with the existing TBM tunneling equipment and the rock breaking method thereof, the two technical schemes are compared by a worker, and the comparison result is as follows:
according to the upper table, high pressure water jet limit sword and water conservancy-mechanical combination broken rock are got rid of poverty TBM blade disc compare with current TBM tunnelling equipment system and broken rock method thereof, can improve broken rock efficiency, reduce broken rock energy consumption, reduce mechanical wear, improve the engineering progress, reduce engineering cost, when TBM blade disc card machine, its high pressure water jet limit sword can make TBM get rid of poverty.
Other parts not described belong to the prior art.
Claims (9)
1. High-pressure water jet limit sword, its characterized in that: comprises a side cutter mechanical structure (1), a side cutter high-pressure water jet pipeline (2) and a side cutter high-pressure water jet nozzle (3);
the side cutter high-pressure water jet pipeline (2) is positioned inside the side cutter mechanical structure (1);
the edge cutter high-pressure water jet nozzle (3) is embedded in the edge cutter mechanical structure (1) and is communicated with the edge cutter high-pressure water jet pipeline (2).
2. The high pressure water jet edging knife of claim 1, wherein: the side cutter mechanical structure (1) is a trapezoidal toothed cutter or a sector scraper.
3. The high pressure water jet edging knife of claim 2, wherein: the side cutter mechanical structure (1) is provided with a through hole structure (1.1); the side cutter high-pressure water jet pipeline (2) and the side cutter high-pressure water jet nozzle (3) are both positioned in the through hole structure (1.1).
4. Hydraulic power-mechanical combined rock breaking and escaping TBM cutterhead, including TBM cutterhead structure (5), mechanical hobbing cutter structure (6), its characterized in that: further comprising a high-pressure water jet edge cutter (4) according to any one of claims 1 to 3; the high-pressure water jet edge cutter (4) is used for fracturing a rock stratum causing the TBM cutter head structure to be stuck, so that the TBM cutter head structure is removed from the trouble;
the high-pressure water jet edge cutter (4) is obliquely arranged on the circumference of the TBM cutter head structure (5);
the mechanical hob structure (6) is circumferentially arranged on the TBM cutterhead structure (5) and is arranged at intervals.
5. The hydraulic-mechanical combined rock breaking and de-trapping TBM cutterhead of claim 4, wherein: also comprises a hydraulic cutting tool (7); the hydraulic cutting tools (7) are circumferentially arranged on the TBM cutter head structure (5) and are arranged at intervals;
the hydraulic cutting tool (7) is arranged between the two mechanical hob structures (6) which are arranged at intervals in the radial direction.
6. The hydraulic-mechanical combined rock breaking and de-trapping TBM cutterhead of claim 5, wherein: the hydraulic cutting tool (7) is arranged at the central position between the two mechanical hob structures (6) which are arranged at intervals.
7. The hydraulic-mechanical combined rock breaking and de-trapping TBM cutterhead of claim 6, wherein: and the high-pressure water jet edge cutter (4) is arranged on the periphery of the TBM cutter head structure (5).
8. The hydraulic-mechanical combined rock breaking and de-trapping TBM cutterhead of claim 7, wherein: the hydraulic cutting tool (7) comprises a high-pressure water pipeline (7.1), a rolling wheel (7.2) and a tool middle shaft (7.3);
the high-pressure water pipeline (7.1) is arranged on the rolling wheel (7.2);
the rolling wheel (7.2) is arranged on the middle shaft (7.3) of the cutter;
the cutter middle shaft (7.3) is installed on the TBM cutter head structure (5).
9. The hydraulic-mechanical combined rock breaking and de-trapping TBM cutterhead of claim 8, wherein: the rolling wheel (7.2) is at least one of a roller and a double roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921808712.0U CN211342922U (en) | 2019-10-25 | 2019-10-25 | High-pressure water jet side cutter and hydraulic-mechanical combined rock breaking and trapped-escaping TBM cutter head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921808712.0U CN211342922U (en) | 2019-10-25 | 2019-10-25 | High-pressure water jet side cutter and hydraulic-mechanical combined rock breaking and trapped-escaping TBM cutter head |
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|---|---|
| CN211342922U true CN211342922U (en) | 2020-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921808712.0U Active CN211342922U (en) | 2019-10-25 | 2019-10-25 | High-pressure water jet side cutter and hydraulic-mechanical combined rock breaking and trapped-escaping TBM cutter head |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114151095A (en) * | 2021-11-17 | 2022-03-08 | 山东大学 | Coaxial different-speed shield machine/TBM (tunnel boring machine/TBM) carrying high-pressure water jet structure and shield machine/TBM |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114151095A (en) * | 2021-11-17 | 2022-03-08 | 山东大学 | Coaxial different-speed shield machine/TBM (tunnel boring machine/TBM) carrying high-pressure water jet structure and shield machine/TBM |
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