27results about How to "Improve rock breaking ability" patented technology

The invention discloses a large-section TBM multi-stage cutter head for high-pressure water jet joint cutting assisted rock breaking. The large-section TBM multi-stage cutter head comprises a cutter head system, a high-pressure water jet coupling system, a cutter head rotating system, a cutter head propelling system and a cutter head supporting frame. The cutterhead system comprises a central cutterhead, an edge cutterhead and a blind area cutterhead, and the central cutterhead and the edge cutterhead are both circular. The edge cutterheads are arranged on the periphery of the center cutterheads, the blind area cutterheads are arranged in blind areas between the center cutterheads and the edge cutterheads, and each center cutterhead and each edge cutterhead are each provided with a plurality of high-pressure water jet coupling systems. The cutting depth and the cutting range of the water jet are effectively increased, the rock breaking capacity is improved, the TBM hob rock breaking efficiency is improved, and the technical progress of coupling high-pressure water jet TBM equipment manufacturing is promoted.

The present invention discloses a high-pressure water jet edge cutter. It comprises an edge cutter mechanical structure, an edge cutter high-pressure water jet pipeline and an edge cutter high-pressure water jet nozzle; the edge cutter high-pressure water jet pipeline is located inside the edge cutter mechanical structure; the edge cutter high-pressure water jet nozzle is embedded inside the edge cutter mechanical structure and is connected to the edge cutter high-pressure water jet pipeline. The present invention has the advantages of spraying high-pressure water to fracture rocks and can solve the problem of TBM jamming. The present invention also discloses a hydraulic-mechanical combined rock-breaking and TBM cutter disc. The present invention also discloses a hydraulic-mechanical combined rock-breaking and escape method.

The invention relates to the technical field of deep engineering hard rock breaking, and discloses a shield microwave rock breaking device and method. The device comprises a shield cutter head, rock detection equipment and a drill rod, and the extension angle and the extension length of the drill rod are determined according to the positions of rock breaking target points of different rocks, so that a microwave transmitting device and a water injection cooling device of a drill bit can perform microwave rock breaking at the positions needing rock breaking more accurately, and the rock breaking effect is improved. According to the method, through a rock breaking model, the microwave emission angle, the microwave velocity, the microwave heating time, the water flow velocity, the water flowing time and the alternating frequency of microwave heating and water injection cooling under different mineral boundary geometric shapes and porosities are accurately set in real time, and microwave rock breaking is accurately carried out.

The invention discloses a shield hobbing cutter capable of breaking rocks through impact. The shield hobbing cutter comprises a cutter; a plurality of mounting holes are formed in the cutter; the mounting hole extends in the radial direction of the cutter; the driving device is arranged in the mounting hole; the impact bar is positioned in the mounting hole and is connected with the driving device; and the impact rod is used for stretching out of and retracting into the mounting hole under the driving of the driving device. While rock breaking is conducted through the cutter, the impact bar is additionally arranged on the cutter, so that when the cutter is high in hardness and hard to complete tunneling, the driving device can be started, the impact bar is driven by the driving device to stretch out of the mounting hole, rock is impacted, and the impact bar is driven by the driving device to stretch out of the mounting hole. Therefore, the rock breaking capacity of the shield hob capable of breaking the rock through impact is improved.

The utility model belongs to the technical field of shield cutters, and particularly relates to a novel ultra-hard rock shield three-blade hob which comprises a hob body, the hob body comprises a hob shaft and a hob body, the hob body comprises a left cutterhead and a right cutterhead which are designed in a split mode, a first sealing ring is arranged between the left cutterhead and the right cutterhead, and a second sealing ring is arranged between the left cutterhead and the right cutterhead. A first sealing ring is arranged on one side of the left cutterhead, a second sealing ring is arranged on one side of the right cutterhead, a first cutter ring and a second cutter ring are arranged on the left cutterhead in parallel, a third cutter ring is arranged on the right cutterhead, and a plurality of cylindrical rollers are evenly distributed on the periphery of the cutter shaft and abut against and make contact with the inner side face of the left cutterhead and the inner side face of the right cutterhead respectively. A plurality of balls are uniformly distributed on the periphery of the cutter shaft between the two groups of cylindrical rollers, a through hole is formed in the cutter shaft corresponding to the mounting position of the balls, and a plugging rod is arranged in the through hole. The utility model has reasonable design, is convenient to process, improves the bearing capacity, ensures the working progress, ensures the tunneling effect, and meets the use requirements.

The utility model relates to a kind of rock breaking rods, it includes: including main body and hammer head, main body is covered with flexible layer outside, main body is equipped with movable cavity inside, movable cavity is arranged close to the bottom end of main body, several movable members are filled in movable cavity, and movable member can freely move in movable cavity. Hammer head is located below main body, and is connected with the bottom end of main body. Inertial motion of movable member can absorb and offset part of kinetic energy that bounces back to rock breaking rod, so as to significantly reduce rock breaking rod echo, improve rock breaking effect. Movable member shakes in movable cavity can significantly reduce the vibration of rock breaking rod and the intensity of high-frequency noise radiated outward, so as to be conducive to ecological environmental protection. Flexible layer covered outside main body buffers the vibration of main body, and reduces the noise propagated outward by main body. Therefore, the rock breaking rod can reduce the adverse effects of energy bouncing back to rock breaking rod.

The utility model discloses the technical field's biomass granule type fracturing rock pipe structure of rock breaking, including the flexible film cover of both ends closed, the flexible film cover is filled with the paper roll and biomass granule from bottom to upward interval in, still include from the liquid filling guide pipe, electric ignition device and exhaust pipe of its inside of penetrating into the top of flexible film cover. Through adopting biomass granule as the adsorption combustion agent of fracturing rock pipe, the problem of relatively high price of paper roll, and relatively low explosive force etc. is solved. And the addition of a small amount of paper roll as an igniter, ensure the quick ignition of biomass granule, the liquid filling effect is ensured while the liquid filling guide pipe ring support frame improves the rock breaking effect.

The present invention provides a heavy-duty fishtail cutter for a shield machine, comprising a base, a main fishtail cutter plate, and two auxiliary fishtail cutter plates. The main fishtail cutter plate and the two auxiliary fishtail cutter plates are installed on the upper surface of the base, and the two auxiliary fishtail cutter plates are respectively located on both sides of the main fishtail cutter plate. A first cutter is arranged at intervals on the main fishtail cutter plate, and a second cutter is arranged at intervals on the auxiliary fishtail cutter plate. When the base rotates, the motion trajectories of the top centers of the first cutter and the second cutter are located on the same conical surface, and the accumulated motion trajectories of the first cutter and the second cutter cover the area swept by the main fishtail cutter plate. The heavy-duty fishtail cutter for a shield machine described in the present invention can not only share the force of the main fishtail cutter plate through the auxiliary fishtail cutter plate, reducing the risk of damage and fracture of the main fishtail cutter, but also the combination of the main fishtail cutter plate and the auxiliary fishtail cutter plate can cope with higher impacts, with high structural strength, strong rock breaking ability, and long service life.

The utility model belongs to the field of blasting engineering, and relates to a strip mine water hole blasting shaped charge structure, which comprises a filling section, an emulsion explosive section, a water medium and an energy concentrator, is reasonable and compact in structure and convenient to use, enables explosives to form a shaped hole during explosion through the energy concentrator, and utilizes the transduction effect of the water medium to charge the explosives into the shaped hole. The utilization rate of explosives is effectively improved through the bubble pulsation phenomenon and the'water wedge 'effect, the maximum acting force borne by rock mass is enhanced, and the rock breaking capacity is improved. The device solves the root problem, and has the characteristics of safety, labor saving, simplicity, convenience and high efficiency.

The present invention discloses a hydraulic pulse vibration integrated tool based on rotor drive, comprising: a housing; a vibration actuator, a pulse generating mechanism, an upper transmission mechanism, a rotor driving mechanism and a lower transmission mechanism connected in sequence. When in use, the rotor driving mechanism is started, and the power is transmitted downward to the lower transmission mechanism, and the lower transmission mechanism transmits the power to the drill bit to break the rock. At the same time, the rotor driving mechanism transmits the power upward to the upper transmission mechanism, and the upper transmission mechanism transmits the power to the pulse generating mechanism. The pulse generating mechanism converts the rotation transmitted by the upper transmission mechanism into axial reciprocating movement to realize the axial reciprocating movement of the driving vibration actuator, and the vibration actuator is connected to the drill string, thereby realizing the pulse vibration of the entire hydraulic pulse vibration integrated tool, improving the rock breaking ability of the drill bit, and at the same time reducing the friction and support pressure between the hydraulic pulse vibration integrated tool and the drill string and the well wall, and improving the drilling pressure transmission efficiency.

This utility model discloses a pneumatic impact-type pipe pile-anchor composite foundation construction device, including a stainless steel borehole wall casing, a prestressed pipe pile, an enlarged pile shoe body, a groove cavity, and pipe connectors. The stainless steel borehole wall casing is divided into a surface part and an inner part according to its position. The stainless steel borehole wall casing is installed around the pipe pile, and adjacent stainless steel casing walls are connected by iron chains and turnbuckles. The iron chains are embedded in the surface end face of the stainless steel borehole wall casing, and the lifting rings are embedded in the surface part of the stainless steel borehole wall casing. The stainless steel borehole wall casing passes through the prestressed pipe pile. The enlarged pile shoe body is divided into three parts: a shoe tip, a central fixing column, and an outer fixing ring. The enlarged pile shoe body is located at the bottom end of the prestressed pipe pile. This utility model can avoid the collapse of the top soil due to the impact and vibration of the falling pipe pile. At the same time, it does not use conventional drop hammers during construction, which can protect the quality of the pile top to a greater extent and reduce problems such as soil displacement and noise during construction.

The present invention relates to the technical field of tunnel-specific engineering equipment, and specifically to a six-main-beam cutterhead center hob installation structure, comprising a cutterhead, wherein a center hob group is provided at the center of the front end face of the cutterhead, wherein the center hob group comprises a first hob module, a second hob module, a third hob module and a fourth hob module, wherein the four hob modules are in a cross-shaped configuration, wherein the hob axis of the fourth hob module is deflected to one side by an angle θ to provide a layout space for the front hob group, thereby increasing the number of front hobs to be arranged, and the hob size of the front hob group is larger than the hob size of the center hob group. A six-main-beam cutterhead, comprising the aforementioned six-main-beam cutterhead center hob installation structure. The present invention can increase the number of front hobs to be arranged, and since the size of the front hob is larger, the bearing capacity and rock breaking capacity are stronger, the rock breaking capacity and bearing capacity of the center area of ​​the cutterhead are enhanced, thereby improving the excavation efficiency and excavation capacity of the cutterhead.

The utility model provides a novel tooth-shaped shield tunneling machine hob cutter ring which comprises a base body and a friction ring, the friction ring is arranged on the outer circle of the base body in a sleeved mode, the thickness of the friction ring is smaller than that of the base body, and a plurality of grooves are distributed in the peripheral face of the friction ring in the circumferential direction of the friction ring. The method has the characteristic of improving the rock breaking efficiency of the hob of the shield tunneling machine in a low-strength rock stratum.

The invention discloses a safe low-energy-consumption liquid oxygen pressurization output system, and belongs to the technical field of mineral resource exploitation. The system comprises a vertical Dewar tank, a liquid pressurization system, a horizontal Dewar tank, a liquid-gas separation device and a shunting pipeline system, the vertical Dewar tank is connected with an inlet of the horizontal Dewar tank through the liquid pressurization system, and an outlet of the horizontal Dewar tank is connected with the shunting pipeline system through the liquid-gas separation device. And a preset flow valve group is mounted on a shunting pipeline of the shunting pipeline system. The invention aims to solve the problems of improving the liquid oxygen conveying efficiency and safety, reducing the gasification loss, reducing the energy consumption and improving the rock breaking accuracy in the prior art, improve the liquid oxygen conveying safety, ensure the liquid oxygen rock cracking effect and reduce the rock cracking cost.

The invention relates to the technical field of rock drilling, and provides a modular assembly type full-automatic tunneling rock breaking robot and a working method thereof, and the robot comprises a robot main body module, a stress advanced relieving module and a rock breaking module. The stress in the rock mass is relieved in advance through the stress advanced relieving module, the rock breaking efficiency of the rock breaking module can be improved, and damage such as rock burst and working face deformation can be eliminated. The stress advanced relieving module and the rock breaking module are installed on the robot body module, and the number, the types and the installation positions of the modules can be adjusted so as to adapt to different working conditions. According to the robot, full-automatic unmanned operation can be achieved by presetting tunneling parameters according to specific working conditions. In addition, the invention further provides a working method of the robot, the working method comprises the steps of movement, advanced stress relief, rock breaking, deslagging and the like, and efficient full-automatic continuous tunneling operation can be achieved.

The present invention discloses a hydraulic-mechanical combined rock-breaking TBM device. It includes a rotary drive, a propulsion cylinder, an outer frame, a hydraulic cylinder, a support shoe on the outer frame and a TBM cutter disc structure; the TBM cutter disc structure is installed at the front end of the rotary drive; the outer frame is located outside the rotary drive; the support shoe on the outer frame is located behind the outer frame and is connected to the outer frame through the propulsion cylinder; the TBM cutter disc structure includes a TBM cutter disc, a mechanical hob structure and a hydraulic cutting tool module; the mechanical hob structure and the hydraulic cutting tool module are both circumferentially installed on the TBM cutter disc; the hydraulic cutting tool module is installed between two adjacent mechanical hob structures. The present invention has the advantages of ensuring that the hydraulic cutting tool module is always in close contact with the rock face for water jet cutting, thereby improving the rock breaking efficiency. The present invention also discloses a rock breaking method of the hydraulic-mechanical combined rock-breaking TBM device.

The invention belongs to the technical field of roadway tunneling, and discloses a cantilever type disc cutter rock breaking tunneling device. Comprising a first-section working mechanism, a second-section working mechanism and a hinging mechanism for connecting the first-section working mechanism and the second-section working mechanism, the first-section working mechanism comprises a cutting part, a loading part, a first-section walking mechanism, a first-section machine body, a first-section conveying part and a cutting part swinging mechanism; the second-section working mechanism comprises a second-section conveying part, a second-section walking mechanism, a second-section machine body, a swingable discharging mechanism and a control system. The cutting part is high in rock breaking capacity and cutting efficiency, the cutting driving device of the cutting part rotates to drive the tool rest body and the disc cutter to rotate, meanwhile, the cutting part swing mechanism in the first section of machine body drives the disc cutter of the cutting part to be pressed into rock, the stability is good, meanwhile, left-right and up-down swing of the cutting part can be achieved, and the cutting efficiency is improved. And the cutting section can be adjusted at will within the application range.

The utility model belongs to the technical field of roller bits, and particularly relates to a six-mode screw drill universal shaft which comprises an upper movable hinge, a ball seat, a ball cap, a transmission key, an upper locking sleeve, a rubber sealing sleeve, a hexagonal connecting rod, a lower indentation sleeve and a lower movable hinge. The ball seat is embedded in the upper movable hinge; the ball cap is inserted into the top end of the hexagonal connecting rod and makes contact with the ball seat through a spherical surface. The top of the hexagonal connecting rod is connected with the upper movable hinge through a hexagon; the transmission key is arranged between the hexagonal connecting rod and the upper movable hinge; the upper locking sleeve is connected with the upper movable hinge through threads; the rubber sealing sleeve is connected with the hexagonal connecting rod and the upper locking sleeve and is used for ensuring that the transmission part works under the condition of sealing grease; the connecting structure of the lower end is identical to that of the upper end. Compared with point-line contact of a traditional petal-type universal shaft and line-line contact of a traditional ball-column-type sealing universal shaft, the universal shaft has the advantages that the anti-shearing face is greatly enlarged, the torque transmission capacity is remarkably improved, and the universal shaft can better adapt to the large-torque operation environment through a face-face contact mode.

The utility model relates to the technical field of anchor breaking machines, and discloses an outer telescopic roller structure convenient to maintain and replace, which comprises a fixed roller, the periphery of the fixed roller is fixedly connected with a first tooth holder, the periphery of the right side of the fixed roller is sleeved with an outer telescopic cylinder, and the periphery of the outer telescopic cylinder is fixedly connected with a second tooth holder. A mounting mechanism is arranged on the right side of the outer telescopic cylinder, a clamping mechanism is arranged on the left side of the mounting mechanism, the mounting mechanism comprises a rotary sealing piece, the rotary sealing piece is fixedly connected to the right side of the fixed roller, an oil cylinder connecting seat is fixedly connected to the right side of the fixed roller, and an oil cylinder body is fixedly connected to the right side of the oil cylinder connecting seat; a baffle is arranged on the periphery of the right side of the oil cylinder body. An outer side cantilever beam concentrated stress structure of the inner telescopic roller is improved into an outer telescopic cylinder overall concentrated stress structure, the load bearing strength of the outer telescopic cylinder is improved, the overall rock breaking capacity of the roller of the driving and anchoring machine is improved, and the situation that a tooth seat with a cushion block is broken off is little or no.

The invention discloses a metal wire electric explosion electrode structure and a using method thereof.The structure is applied to explosion drilling and comprises an expansion body and a metal coil, and the expansion body comprises an expansion layer; the metal coil is arranged on the outer side of the expansion layer and electrically connected with an electrode wire. While the expansion body supports the metal coil, when the expansion body enters an explosion drill hole, the metal coil is brought into the expansion drill hole, the metal coil is prevented from being clamped in the explosion drill hole, and the whole metal coil is more easily placed into the explosion drill hole. After the expansion layer in the expansion body expands, the expansion body is switched from the first state to the second state, the expansion body pushes the metal coil to move, the distance between the metal coil and the inner wall of the explosion drill hole is reduced, the attenuation distance of electrical explosion of the metal coil is shortened, shock wave attenuation is reduced, and the metal wire electrical explosion rock breaking effect is improved.

The invention provides a front-back mixing combined type abrasive water jet mechanism and a method thereof.The front-back mixing combined type abrasive water jet mechanism comprises ultrahigh-pressure water jet devices, a plurality of high-pressure abrasive water jet devices and a jet mixing acceleration device, and the ultrahigh-pressure water jet devices and the jet mixing acceleration device are arranged; the water jet device and the ultrahigh-pressure water jet device are obliquely arranged; the jet mixing acceleration device comprises a mixing cavity, a mixing jet nozzle and a locking assembly, a plurality of mounting holes are formed in the mixing cavity, one mounting hole is communicated with the ultrahigh-pressure water jet device, the other mounting holes are connected with the corresponding high-pressure abrasive water jet devices, and at least one high-pressure abrasive water jet device is communicated with the mixing cavity. According to the invention, the pre-mixed abrasive water jet is firstly formed, and then the ultrahigh-pressure water jet with higher speed is formed to perform secondary acceleration on the pre-mixed abrasive water jet, so that the speed of abrasive particles is remarkably increased, and the jet cutting effect is improved.

The present invention provides a dual-purpose tunnel boring machine for hard rock cutting and chopping, comprising a main body, a traveling part, a conveyor, a shovel part, a left cutting device and a right cutting device with the same structure, a cutting part, a lubrication system, a rear support, a water system, a hydraulic system, and an electrical system; a pump station of the lubrication system is arranged on one side of the main body, an operating console is arranged on the other side, and a traveling part is arranged below; a cutting part is arranged on the upper part of the front end of the main body, and a shovel part is arranged on the lower part; a conveyor is arranged on the upper part of the rear end of the main body, and a rear support is arranged on the lower part; left and right cutting devices with the same structure are arranged on both sides of the cutting part. The present invention can cut out multiple free surfaces first when excavating a hard rock tunnel, and then perform cutting to improve the rock breaking ability without taking other measures or adding additional equipment, thereby breaking through the difficulties of hard rock excavation and improving the excavation work efficiency.

A multi-scale umbrella-shaped conical surface adjustable positive and reverse mining equipment and construction method, the equipment: the upper end of the fixed disc is equipped with four drill bits; the telescopic support rod is assembled at the lower end of the fixed disc through the base, and the tail end is externally sleeved with an expandable support disc base; the inner ends of the three expandable support discs are connected with the expandable support disc base, and the outer ends are provided with support fixed engagement racks; the outer conical surface of the movable main umbrella body has three rock breaking areas in sequence, and is sequentially provided with drill bits; the inner conical surface is sequentially provided with three support steps, and is sequentially provided with large, medium and small scale drilling fixed engagement racks; the ends of the three movable main umbrella body conical surface connecting rods respectively extend into the three arc-shaped grooves on the fixed disc, and the conical surface connecting rod and the arc-shaped groove are hinged through a rotating connecting piece. The method: according to the drilling object, the forward or reverse drilling mode is adopted, and the support angle is controlled according to the actual working condition. The equipment and method can meet the needs of various drilling conditions.

This utility model belongs to the field of tunnel rock breaking equipment, specifically providing a rock breaking device and a cantilever tunneling machine. The rock breaking device includes a vibrating shell, inside which a rotatable main shaft is installed. The main shaft is equipped with a main drive mechanism to drive its rotation. A rock breaking head that rotates with the main shaft is connected to the front end of the main shaft. The central axis of the rock breaking head is eccentric to the rotation axis of the main shaft. The main shaft is hollow, and an eccentric block that rotates relative to the main shaft is installed inside the main shaft. The eccentric block is equipped with an eccentric drive mechanism to drive its rotation, thereby generating radial vibration. The cantilever tunneling machine includes the aforementioned rock breaking device. During construction, this utility model can achieve two combined working modes: eccentric rotation of the rock breaking head and radial vibration of the rock breaking head, achieving a "1+1>2" effect, improving the rock breaking ability of the device for extremely hard rock formations, and thus increasing rock breaking efficiency.

The invention discloses a vertical shaft tunneling blasting method based on shaped charge, which comprises the following steps: drilling an empty hole in the center of an excavation section, sequentially drilling a plurality of slotting holes, a plurality of caving holes and a plurality of peripheral holes from inside to outside around the empty hole, the plurality of slotting holes, the plurality of caving holes and the plurality of peripheral holes are annularly arranged by taking the empty hole as a center; the slotting holes are sequentially filled with one-way shaped charge and stemming from bottom to top; the caving holes are sequentially filled with hole bottom shaped charge, common cartridges and stemming from bottom to top; the peripheral holes are sequentially filled with bidirectional shaped charge and stemming from bottom to top; and all blast holes in the excavation section are subjected to delayed blasting from inside to outside. The hard rock slotting blasting effect can be improved during vertical shaft tunneling blasting, the utilization rate of deep blast holes is increased, and the peripheral forming effect is improved.

The splicing combustion tube comprises a tube body, a plug and a splicing head, the tube body is of a hollow tubular structure, the plug is connected to the bottom of the tube body in an inserted mode, the splicing head is connected to the top of the tube body in an inserted mode, the splicing head comprises a first connector and a second connector, the first connector is arranged below the second connector, and the second connector is arranged below the first connector. The first connector and the second connector are both of a hollow structure penetrating through the upper end and the lower end of the first connector and the second connector and are both communicated with the pipe bodies, and the multiple pipe bodies of the same structure are sequentially connected in an inserted mode through the splicing heads to be communicated. According to the splicable combustion tube, the length of the combustion tube can be conveniently adjusted according to the actual length of a tunnel blast hole through the splicing head, use is more convenient, the flexibility is high, in addition, energy can be transmitted for combustion through the conical part, when fuel in one tube body is ignited, flames can be transmitted through the conical part of the splicing head, and the combustion efficiency is improved. Ignition of fuel in the other pipe body is accelerated, and the overall rock breaking effect is improved.

The utility model relates to the technical field of mine vertical roadway tunneling, and discloses an inserted tooth hobbing cutter with improved alloy tooth arrangement, which comprises an outer cutter shell, an inner cutter shell and an inner cutter shell, the rock breaking inserted teeth are arranged on the surface of the outer cutter shell, and the rock breaking inserted teeth are uniformly distributed on the surface of the outer cutter shell; the bearing assembly is arranged on the surface of the cutter shaft, a first end cover is installed on the upper portion of an inner cavity of the outer cutter shell, and a second end cover is installed on the lower portion of the inner cavity of the outer cutter shell; the fixing block is arranged on the lower surface of the outer cutter shell, and a cutter holder connecting hole is formed in the lower portion of the cutter shaft. And the rock breaking inserted teeth mounted on the outer contour of the outer cutter shell are densely arranged. By optimizing the surface structure of the outer cutter shell and the arrangement of the rock breaking inserted teeth, the number of the rock breaking inserted teeth is increased, the number of the rock breaking inserted teeth participating in rock breaking is larger within the same time, meanwhile, the stress load of a single rock breaking inserted tooth is relieved, the rock breaking capacity of the hob is improved, and the service life of the hob is prolonged.