CN210803156U - Mechanical-hydraulic combined rock breaking comprehensive test bed - Google Patents
Mechanical-hydraulic combined rock breaking comprehensive test bed Download PDFInfo
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- CN210803156U CN210803156U CN201921019640.1U CN201921019640U CN210803156U CN 210803156 U CN210803156 U CN 210803156U CN 201921019640 U CN201921019640 U CN 201921019640U CN 210803156 U CN210803156 U CN 210803156U
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Abstract
The utility model discloses a machinery-hydraulic power combined rock breaking comprehensive test bed. The device comprises a sample loading mechanism, a sample confining pressure applying mechanism, a sample axial pressure applying mechanism, a torque applying mechanism, a cutter head working mechanism and a rigid reaction frame; the rigid reaction frame is arranged on the peripheries of the sample loading mechanism, the sample confining pressure applying mechanism, the sample axial pressure applying mechanism, the torque applying mechanism and the cutter head working mechanism; the sample loading mechanism is positioned in the sample confining pressure applying mechanism; the cutter head working mechanism is positioned above the sample confining pressure applying mechanism; the upper end of the torque applying mechanism is movably connected with the upper end and the lower end of the rigid counterforce frame and is connected with the cutter head working mechanism; the sample axial pressure applying mechanism is provided on the torque applying mechanism. The utility model has the advantages of can implement the broken rock of linearity, rotatory broken rock and the broken rock test under having or not the confined pressure state respectively, can gather the mechanical data of rock specimen.
Description
Technical Field
The utility model relates to a tunnel and underground works field, in particular to unite broken rock test and broken rock mechanism research field thereof, more specifically says that it is mechanical-hydraulic combination broken rock combined test platform.
Background
With the wide application of the full-face rock tunneling machine in tunnel construction projects such as water conservancy projects, subway projects and traffic projects, higher requirements are provided for the performance of the TBM tunneling device. In recent years, many researchers have started research on the combined rock breaking TBM based on the mechanical rock breaking of the traditional TBM.
Chinese patent No.: CN103244119A, entitled "arrangement method and structure of 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, which is used for improving 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 reapply and arrange the cutter head and 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 water jet grooving firstly, the mechanical hob is pressed afterwards, 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 changes the shape of the traditional circular cutter head, adopts the layout of two cross-shaped spokes, and carries out rock breaking by the impact of water jet on the four spokes and the rotary extrusion of the cutter, thus reducing the energy consumption for breaking rock; but the overall structural form of the cutter head is greatly changed, and the industrial realizability degree is not high.
Although numerous novel TBMs for mechanical-hydraulic combined rock breaking are researched and designed successively, the TBM rock breaking still faces the problems that the energy consumption is high, the excessive change of the cutter head shape of the existing TBM is difficult to realize under complex construction conditions, and the rock breaking efficiency needs to be further optimized.
At present, the existing and under-developed TBM is constructed under a certain working condition, cannot be adjusted in real time according to the actual mechanical property of a tunneling stratum in the construction process, and often has the problem of 'big horse pulls a trolley', so that the energy consumption of the TBM is increased, and the construction cost of a tunnel is increased.
Therefore, it is needed to develop a mechanical-hydraulic combined rock breaking comprehensive test bed capable of performing linear rock breaking, rotary rock breaking and rock breaking tests under the surrounding pressure state or not, so as to provide rock breaking data for mechanical-hydraulic combined rock breaking.
Disclosure of Invention
The utility model aims at providing a machinery-hydraulic power is jointly broken rock combined test platform, simple structure can implement linear broken rock, rotatory broken rock and the broken rock test under having or not the confined pressure state respectively, can gather the mechanical data of rock specimen, utilizes jointly broken rock combined test platform simulation rock confined pressure condition to acquire optimum water jet water pressure and mechanical hob thrust isoparametric under the laboratory condition, provides the optimum broken rock data for machinery-hydraulic power is jointly broken rock.
In order to realize the purpose, the technical scheme of the utility model is that: mechanical-hydraulic combined rock breaking comprehensive test bed is characterized in that: the device comprises a sample loading mechanism, a sample confining pressure applying mechanism, a sample axial pressure applying mechanism, a torque applying mechanism, a cutter head working mechanism and a rigid reaction frame;
the rigid reaction frame is arranged on the peripheries of the sample loading mechanism, the sample confining pressure applying mechanism, the sample axial pressure applying mechanism, the torque applying mechanism and the cutter head working mechanism;
the sample loading mechanism is positioned in the sample confining pressure applying mechanism;
the cutter head working mechanism is positioned above the sample confining pressure applying mechanism;
the upper end of the torque applying mechanism is movably connected with the upper end and the lower end of the rigid counterforce frame and is connected with the cutter head working mechanism;
the sample axial pressure applying mechanism is arranged on the torque applying mechanism and is positioned above the cutter head working mechanism.
In the technical scheme, the cutter head working mechanism comprises a hydraulic cutting hob, a combined rock breaking test bed cutter head and a water jet rotary adjusting part; the hydraulic cutting hobs are circumferentially arranged on the cutter head of the combined rock breaking test bed;
the hydraulic cutting hob comprises a hob main body, a hob middle shaft, a hob reinforcing part, a high-pressure water injection hole, a middle connecting device and a high-pressure water jet channel;
the cutter middle shaft is positioned on the central line of the cutter main body and is a bearing part of the cutter main body;
the cutter reinforcing parts are respectively positioned on two side surfaces of the cutter main body;
the high-pressure water injection hole is positioned in the middle shaft of the cutter and transversely penetrates through the cutter main body;
the middle connecting device is positioned in the middle of the high-pressure water injection hole and in the center of the cutter main body;
the high-pressure water jet channel is arranged in the cutter main body and communicated with the middle connecting device.
In the technical scheme, a plurality of high-pressure water jet channels are arranged; the high-pressure water jet channels are radially arranged by taking the middle connecting device as a center;
a nozzle is arranged on the high-pressure water jet channel; the nozzle is communicated with the high-pressure water jet channel and is arranged on the periphery of the cutter main body;
the high-pressure water jet channel is arranged on the longitudinal central surface of the cutter main body;
a water flow control valve is arranged on the high-pressure water jet channel; the water flow control valve is positioned between the middle connecting device and the nozzle.
In the technical scheme, the cutter steering sensor is arranged on the side surface of the cutter body; a sensing line channel is positioned in the cutter body and the cutter reinforcing part and between the water flow control valve and the cutter steering sensor;
the sensing line channel is of a hollow structure;
a sensing line is arranged in the sensing line channel; the water flow control valve is connected with the cutter steering sensor through the sensing line;
the cutter main body is in a roller shape.
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 water jet rotary adjusting part disc is fixedly connected with a cutter head of the combined rock breaking test bed;
the high-pressure water pipeline butt joint comprises a high-pressure water pipeline butt joint front end and a high-pressure water pipeline butt joint rear end; the rear end of the butt joint of the high-pressure water pipeline is connected with the high-pressure water bin through an external high-pressure water inlet pipeline;
the front end of the butt joint of the high-pressure water pipeline is connected with the high-pressure water injection hole;
the high-pressure water pipeline is to the interface front end with water sword rotation regulation portion synchronous revolution, and with jointly break rock test bench blade disc synchronous revolution.
In the technical scheme, the sample loading mechanism comprises a sample mounting platform base, a sample mounting platform, a guide rail base, a hydraulic propulsion device guide rail and a sample mounting position;
the sample mounting platform is arranged on the sample mounting platform base; four corners of the sample mounting platform are provided with mounting threaded holes for rigid stress rods;
the guide rail base is arranged on the periphery of the sample mounting platform base and is positioned on the periphery of the sample mounting position;
the guide rail of the hydraulic propulsion device is arranged on the guide rail base and is arranged on the sample mounting platform; one end of the guide rail of the hydraulic propelling device is in smooth butt joint with the sample mounting platform.
In the technical scheme, the sample confining pressure applying mechanism comprises a confining pressure applying hydraulic propelling device and a sliding block; the slide block is arranged at the lower end of the confining pressure applying hydraulic propelling device;
the confining pressure applying hydraulic propelling devices are four, and the four confining pressure applying hydraulic propelling devices are in sliding connection with the hydraulic propelling device guide rails through the sliding blocks;
when the four confining pressure applying hydraulic propulsion devices move to the sample mounting position, the four confining pressure applying hydraulic propulsion devices are connected to form a four-side closed structure;
in the technical scheme, the sample axial pressure applying mechanism comprises a rigid lifting hydraulic cylinder, an upper oil inlet/return port, a lower oil inlet/return port, a rigid stress rod upper mounting table, a rigid stress rod upper mounting through hole and a rigid stress rod upper mounting nut;
the upper mounting table of the rigid stress rod and the sample mounting platform are arranged at intervals;
the rigid lifting hydraulic cylinder and the upper mounting nut of the rigid stress rod are both positioned at the upper end of the upper mounting table of the rigid stress rod; the upper oil inlet/return port and the lower oil inlet/return port are arranged on the side surface of the rigid lifting hydraulic cylinder at intervals from top to bottom;
the upper mounting through holes of the rigid stress rod are respectively arranged on four corners of the upper mounting table of the rigid stress rod and positioned outside the rigid lifting hydraulic cylinder;
the lower end of the rigid stress rod is connected with the mounting threaded hole of the rigid stress rod through a thread, and the upper end of the rigid stress rod penetrates through the mounting through hole in the upper part of the rigid stress rod from bottom to top and is fixed at the upper end of the mounting table in the upper part of the rigid stress rod through the mounting nut in the upper part of the rigid stress rod.
In the technical scheme, the torque applying mechanism comprises a torque applying motor, a rigid rotating upright post and a rigid rotating sealing test bed;
the rigid rotating stand column and the rigid rotating seal test bed are integrated mechanisms;
the rigid lifting hydraulic cylinder is of a hollow structure;
the upper end of the rigid rotating upright post is connected to the torque applying motor, and the lower end of the rigid rotating upright post vertically penetrates through the middle part of the rigid lifting hydraulic cylinder downwards and is fixed on a cutter head of the combined rock breaking test bed;
the rigid rotary sealing test bed is positioned in the rigid lifting hydraulic cylinder;
the internal space of the rigid lifting hydraulic cylinder is divided into an upper oil cavity of the rigid hydraulic lifting cylinder and a lower oil cavity of the rigid hydraulic lifting cylinder by the rigid rotary sealing test bed and the rigid rotary upright post;
the upper oil inlet/return port is arranged on the side end face of the upper oil cavity of the rigid hydraulic lifting cylinder and is communicated with the upper oil cavity of the rigid hydraulic lifting cylinder;
and the lower oil inlet/return port is arranged on the side end face of the lower oil cavity of the rigid hydraulic lifting cylinder and is communicated with the lower oil cavity of the rigid hydraulic lifting cylinder.
In the above technical solution, the rigid reaction frame comprises a rigid reaction frame platform, a supporting synchronous rotating table and a rigid reaction frame;
the two rigid reaction frame platforms are arranged at the upper end of the rigid reaction frame at intervals;
the supporting synchronous rotating platform is fixed on the rigid reaction frame and is positioned below the platform of the rigid reaction frame;
a torque applying motor fixing hole is formed in the middle of the rigid counterforce frame platform;
a rigid rotating stand column through hole is formed in the middle of the supporting synchronous rotating platform; the torque applying motor is fixed on the torque applying motor fixing hole; the rigid rotating upright post is rotationally connected with the rigid rotating upright post through hole;
the rigid reaction frame is fixed on the periphery of the sample mounting platform through the rigid reaction frame mounting base.
The utility model has the advantages of as follows:
(1) the utility model develops a new cutter head arrangement mode of combined rock breaking test equipment, a new sample confining pressure and axial pressure loading implementation mode and a new synchronous rotation adjusting mechanism for providing hydraulic rock breaking, and can implement linear rock breaking, rotary rock breaking and rock breaking tests in the states of confining pressure and no confining pressure respectively; the test bed cutterhead on the test bed of the utility model can be provided with a common cutter for testing and a hydraulic cutting hob, thereby implementing rock breaking tests in two forms of a common mechanical hob and a hydraulic cutting hob; the utility model has complete functions, and can solve the existing rock breaking problems to the maximum extent;
(2) the utility model discloses can gather the mechanical data of rock specimen, utilize the combined rock breaking integrated test platform simulation rock confined pressure condition to obtain optimum water jet water pressure and mechanical hobbing cutter thrust isoparametric under the laboratory condition, provide the test data that guides TBM hobbing cutter thrust and water jet water pressure in the combined rock breaking, provide the optimum rock breaking data for the mechanical-hydraulic combined rock breaking;
(3) in the practical working process of the utility model, working condition parameters can be provided for combined rock breaking, so that the working state of the TBM can be adjusted in real time by combined rock breaking, the TBM can obtain the optimal rock breaking parameter combination with low energy consumption and high rock breaking efficiency, the construction energy consumption is reduced, and the engineering cost is solved; the problem that the trolley is pulled by a big horse in the construction process in the prior art is solved;
(4) according to the invention, a mechanical hob structure and a high-pressure water jet structure are integrated and arranged, so that the arrangement mode of a cutterhead is optimized, and a new cutter is formed; compared with a simple superposition mode, the water mist of the hydraulic cutting hob covers the mechanical cutter part more uniformly, and water flows in the cutter, so that the cooling effect is better;
(5) the utility model has the advantages of energy saving, high efficiency and high rock breaking efficiency; the utility model discloses install water conservancy cutting hobbing cutter additional, the water conservancy cutting part (high-pressure water jet) of water conservancy cutting hobbing cutter is grooving in advance in the place ahead of blade disc roll direction, and water conservancy cutting can form the groove (being the water sword grooving) of certain width and degree of depth, and water conservancy cutting process can form the preliminary breakage to the rock of face, and on this basis, the propulsion hobbing cutter device of rock breaking device follows up, and the hydraulic grooving of roll extrusion cutting; the follow-up of the hydraulic cutting hobs enables rock cracks formed by the hydraulic cutting grooves to extend and expand, and cracks between the connected hydraulic cutting hobs are intersected; cutting rock blocks between adjacent hydraulic cutting hobs into triangular rock slag sheets and elliptical or plate-shaped rock slag sheets; the penetration degree of the mechanical cutter head provided with the hydraulic cutting hob is relatively small when the rock is broken;
(6) the invention can be realized on the basis of the existing TBM cutter head without great change, and the industrial realizable degree is higher.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the hydraulic cutting hob according to the present invention.
Fig. 3 is the utility model discloses carry on hydraulic cutting hob's combination broken rock test bench blade disc structure sketch map.
Fig. 4 is a schematic structural view of the water jet rotation adjusting part of the present invention.
Fig. 5 is the structural schematic diagram of the interface of the high-pressure water pipeline of the present invention.
Fig. 6 is the structure schematic diagram of the installation completion of the confining pressure applying hydraulic propulsion device of the present invention.
Fig. 7 is the structure schematic diagram of the sample loading mechanism before the installation of the confining pressure applying hydraulic propulsion device of the utility model.
Fig. 8 is a schematic view of the connection overlooking structure of the sample loading mechanism and the sample confining pressure applying mechanism of the present invention.
Fig. 9 is a schematic structural view of the sample confining pressure applying mechanism of the present invention installed on the sample mounting platform.
Fig. 10 is a front view structure diagram of the sample confining pressure applying mechanism of the present invention.
Fig. 11 is a schematic view of the top view structure of the sample confining pressure applying mechanism of the present invention.
Fig. 12 is a front view structure diagram of the sample axial pressure applying mechanism of the present invention.
Fig. 13 is a schematic top view of the sample axial pressure applying mechanism of the present invention.
Fig. 14 is a schematic structural view of the rigid force-bearing rod of the present invention.
Fig. 15 is an assembly schematic view of the sample axial pressure applying mechanism of the present invention.
Fig. 16 is a front view structural diagram of the torque applying mechanism of the present invention.
Fig. 17 is a schematic top view of the torque applying mechanism of the present invention.
Fig. 18 is a front view structural schematic diagram of the rigid reaction force frame of the present invention.
Fig. 19 is a schematic view of the rigid reaction frame according to the present invention.
Fig. 20 is a schematic view of the working structure of the hydraulic cutting hob of the present invention above the sample confining pressure applying mechanism.
Fig. 21 is a partially enlarged view of fig. 20.
Fig. 22 is a schematic view of the lower end working structure of the mounting table on the upper part of the rigid force-bearing rod of the hydraulic cutting hob of the present invention.
Fig. 23 is a schematic view of the working structure of the hydraulic cutting hob of the present invention located at the upper end of the sample.
Fig. 24 is the schematic diagram of the rock breaking working structure of the hydraulic cutting hob of the present invention.
Fig. 25 is a schematic view of the arrangement structure of the cutter head for the linear cutting test of the present invention.
Fig. 26 is the working structure schematic diagram of the confining pressure-free cutting test of the present invention.
Fig. 27 is a schematic top view of the connection member of the sample box of the present invention before being mounted.
Fig. 28 is a front view schematically illustrating the structure of the connection member of the sample box according to the present invention.
Fig. 29 is a schematic top view of the sample cell connecting member of the sample cell according to the present invention.
Fig. 30 is a schematic front view of the sample box connecting member of the sample box according to the present invention.
Fig. 31 is a left side view structural diagram of a sample box connection member of the sample box of the present invention.
In the figure, 1-a sample loading mechanism, 1.1-a sample mounting platform base, 1.2-a sample mounting platform, 1.21-a rigid stress rod mounting threaded hole, 1.3-a guide rail base, 1.4-a hydraulic propulsion device guide rail, 1.5-a sample mounting position, 2-a sample confining pressure applying mechanism, 2.1-a confining pressure applying hydraulic propulsion device, 2.11-a screw rod connecting threaded hole, 2.2-a slide block, 3-a sample axial pressure applying mechanism, 3.1-a rigid lifting hydraulic cylinder, 3.2-an upper part oil inlet/return port, 3.3-a lower part oil inlet/return port, 3.4-a rigid stress rod upper part mounting platform, 3.5-a rigid stress rod, 3.51-a rigid stress rod upper part mounting thread, 3.52-a rigid stress rod lower part mounting thread, 3.6-a rigid stress rod upper part mounting through hole, 3.7-a nut arranged at the upper part of a rigid stress rod, 3.8-an upper oil cavity of a rigid hydraulic lifting cylinder, 3.9-a lower oil cavity of the rigid hydraulic lifting cylinder, 4-a torque applying mechanism, 4.1-a torque applying motor, 4.2-a rigid rotating upright post, 4.3-a rigid rotating seal test bed, 5-a cutter head working mechanism, 5.1-a hydraulic cutting hob, 5.11-a cutter main body, 5.12-a cutter middle shaft, 5.13-a cutter reinforcing part, 5.14-a high-pressure water injection hole, 5.15-a middle connecting device, 5.16-a high-pressure water jet channel, 5.161-a nozzle, 5.17-a water flow control valve, 5.18-a cutter steering sensor, 5.19-a sensing line channel, 5.110-a sensing line, 5.2-a combined rock breaking test bed cutter, 5.3-a water rotating adjusting part, 5.31-a high-pressure water pipeline butt joint, 5.311-front end of high-pressure water pipe butt joint, 5.312-rear end of high-pressure water pipe butt joint, 5.32-disc of water knife rotation adjusting part, 5.4-high-pressure water bin, 5.5-external high-pressure water inlet pipe, 6-rigid reaction frame, 6.1-rigid reaction frame platform, 6.11-torque applying motor fixing hole, 6.2-supporting synchronous rotating platform, 6.21-rigid rotating column through hole, 6.3-rigid reaction frame, 6.4-rigid reaction frame mounting base, 7-rock sample, 8-sample box connecting component and 8.1-screw rod connecting thread through hole.
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 mechanical-hydraulic combined rock breaking comprehensive test bed comprises a sample loading mechanism 1, a sample confining pressure applying mechanism 2, a sample axial pressure applying mechanism 3, a torque applying mechanism 4, a cutter head working mechanism 5 and a rigid reaction frame 6;
the rigid reaction frame 6 is arranged on the peripheries of the sample loading mechanism 1, the sample confining pressure applying mechanism 2, the sample axial pressure applying mechanism 3, the torque applying mechanism 4 and the cutter head working mechanism 5;
the sample loading mechanism 1 is positioned in the sample confining pressure applying mechanism 2; the rock sample is arranged in the sample loading mechanism;
the cutter head working mechanism 5 is positioned above the sample confining pressure applying mechanism 2;
the upper end of the torque applying mechanism 4 is movably connected with the upper end and the lower end of the rigid reaction frame 6 and is connected with the cutter head working mechanism 5;
the sample axial pressure applying mechanism 3 is arranged on the torque applying mechanism 4 and is positioned above the cutter head working mechanism 5 (as shown in fig. 1).
The cutterhead working mechanism 5 comprises a hydraulic cutting hob 5.1, a combined rock breaking test bed cutterhead 5.2 and a water jet rotary adjusting part 5.3; the hydraulic cutting hob 5.1 is circumferentially arranged on the cutterhead 5.2 of the combined rock breaking test bed (as shown in fig. 3);
the hydraulic cutting hob 5.1 comprises a hob main body 5.11, a hob middle shaft 5.12, a hob reinforcing part 5.13, a high-pressure water injection hole 5.14, a middle connecting device 5.15 and a high-pressure water jet channel 5.16;
the cutter middle shaft 5.12 is positioned on the central line of the cutter main body 5.11 and is a bearing part of the cutter main body 5.11;
the cutter reinforcing parts 5.13 are respectively positioned on two side surfaces of the cutter main body 5.11;
the high-pressure water injection hole 5.14 is positioned in the cutter middle shaft 5.12 and transversely penetrates through the cutter main body 5.11;
the middle connecting device 5.15 is positioned in the middle of the high-pressure water injection hole 5.14 and in the center of the cutter main body 5.11;
the high-pressure water jet channel 5.16 is arranged in the tool body 5.11 and is communicated with the middle connecting device 5.15.
A plurality of high-pressure water jet channels 5.16 are arranged; the high-pressure water jet channel 5.16 is radially arranged by taking the middle connecting device 5.15 as a center;
the high-pressure water jet channel 5.16 is provided with a nozzle 5.161; the nozzle 5.161 is communicated with the high-pressure water jet passage 5.16 and is arranged on the periphery of the cutter main body 5.11;
the high-pressure water jet channel 5.16 is arranged on the longitudinal central surface of the cutter main body 5.11;
a water flow control valve 5.17 is arranged on the high-pressure water jet channel 5.16; the water flow control valve 5.17 is located between the middle connection 5.15 and the nozzle 5.161.
A cutter steering sensor 5.18 is arranged on the side surface of the cutter main body 5.11;
a sensing line channel 5.19 is located in the cutter body 5.11 and the cutter reinforcing portion 5.13 and between the water flow control valve 5.17 and the cutter direction sensor 5.18;
the sensing line channel 5.19 is of a hollow structure;
a sensing line 5.110 is arranged in the sensing line channel 5.19; the water flow control valve 5.17 is connected to the tool turning sensor 5.18 via the sensor line 5.110;
the tool body 5.11 is in the form of a roller (see fig. 2).
The water jet cutter rotation adjusting part 5.3 comprises a high-pressure water pipeline butt joint port 5.31 and a water jet cutter rotation adjusting part disc 5.32; the high-pressure water pipeline butt joint port 5.31 is arranged on the water jet scalpel rotation adjusting part disc 5.32; the water jet cutter rotation adjusting part disc is a hole opening mechanism of a butt joint of the high-pressure water pipeline, and can synchronously rotate with a test bed hob;
the water jet cutting rotation adjusting part disc 5.32 is fixedly connected with a combined rock breaking test bed cutter head 5.2;
the high-pressure water pipe butt joint 5.31 comprises a high-pressure water pipe butt joint front end 5.311 and a high-pressure water pipe butt joint rear end 5.312; the rear end 5.312 of the high-pressure water pipeline butt joint port is connected with a high-pressure water sump 5.4 through an external high-pressure water inlet pipeline 5.5; 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 5.311 of the high-pressure water pipeline butt joint port is connected with the high-pressure water injection hole 5.14;
the water jet cutting rotation adjusting part disc 5.32 is fixedly connected with a combined rock breaking test bed cutterhead 5.2 and fixedly connected with the lower end of the rigid rotating upright post 4.2; the front end 5.311 of the high-pressure water pipeline butt joint port rotates synchronously with the water jet rotation adjusting part 5.3 and synchronously rotates with the combined rock breaking test bed cutterhead 5.2 (as shown in fig. 1, 4 and 5); when the hydraulic cutting hob 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 high-pressure water jet channel 5.16 in the hydraulic cutting hob 5.1 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.
The water jet rotary adjusting part 5.3 is a connecting structure of external high-pressure water and rock breaking high-pressure water, and the external high-pressure water is obtained by connecting a high-pressure water pipeline to a high-pressure water sump; the butt joints of the high-pressure water pipelines correspond to the positions of water cutters (namely, hydraulic cutting hobs 5.1) on a cutter head of the combined rock breaking test bed one by one.
The sample loading mechanism 1 comprises a sample mounting platform base 1.1, a sample mounting platform 1.2, a guide rail base 1.3, a hydraulic propelling device guide rail 1.4 and a sample mounting position 1.5;
the sample mounting platform 1.2 is arranged on the sample mounting platform base 1.1; four corners of the sample mounting platform 1.2 are provided with mounting threaded holes 1.21 for rigid stress rods;
the guide rail base 1.3 is arranged around the sample mounting platform base 1.1 and around the sample mounting position 1.5;
the guide rail 1.4 of the hydraulic propulsion device is arranged on the guide rail base 1.3 and on the sample mounting platform 1.2; one end of the hydraulic propulsion device guide rail 1.4 is in smooth butt joint with the sample mounting platform 1.2 (as shown in fig. 6, 7 and 8), and the sample mounting platform 1.2 freely slides on the hydraulic propulsion device guide rail 1.4, so that the sliding resistance is reduced.
The sample confining pressure applying mechanism 2 comprises a confining pressure applying hydraulic propelling device 2.1 and a slide block 2.2; the slide block 2.2 is arranged at the lower end of the confining pressure applying hydraulic propelling device 2.1;
four confining pressure applying hydraulic propelling devices 2.1 are arranged, and the four confining pressure applying hydraulic propelling devices 2.1 are in sliding connection with the hydraulic propelling device guide rails 1.4 through the sliding blocks 2.2;
when four confining pressure applying hydraulic propulsion devices 2.1 are moved to a sample mounting position 1.5, the four confining pressure applying hydraulic propulsion devices are connected to form a four-sided closed structure to form a confining pressure applying hydraulic propulsion device and apply confining pressure to a rock sample (as shown in figures 1, 9, 10 and 11);
the sample axial pressure applying mechanism 3 comprises a rigid lifting hydraulic cylinder 3.1, an upper oil inlet/return port 3.2, a lower oil inlet/return port 3.3, a rigid stress rod upper mounting table 3.4, a rigid stress rod 3.5, a rigid stress rod upper mounting through hole 3.6 and a rigid stress rod upper mounting nut 3.7;
the upper mounting table 3.4 of the rigid stress rod is arranged opposite to the sample mounting platform 1.2; the sample mounting platform 1.2 and the mounting platform 3.4 on the upper part of the rigid stress rod are arranged in parallel at intervals;
the rigid lifting hydraulic cylinder 3.1 and the upper mounting nut 3.7 of the rigid stress rod are both positioned at the upper end of the upper mounting table 3.4 of the rigid stress rod; the upper oil inlet/return port 3.2 and the lower oil inlet/return port 3.3 are arranged on the side surface of the rigid lifting hydraulic cylinder 3.1 at intervals from top to bottom;
the upper mounting through holes 3.6 of the rigid stress rod are respectively arranged on four corners of the upper mounting table 3.4 of the rigid stress rod and positioned outside the rigid lifting hydraulic cylinder 3.1; the upper end of the rigid stress rod 3.5 is provided with a rigid stress rod upper part mounting thread 3.51 connected with the rigid stress rod upper part mounting nut 3.7, and the lower end is provided with a rigid stress rod lower part mounting thread 3.52 matched with the rigid stress rod mounting threaded hole 1.21;
the lower end of the rigid stress rod 3.5 is connected with the threaded hole 1.21 through a screw thread, and the upper end of the rigid stress rod passes through the upper mounting through hole 3.6 of the rigid stress rod from bottom to top and is fixed at the upper end of the upper mounting table 3.4 of the rigid stress rod through the upper mounting nut 3.7 of the rigid stress rod (as shown in fig. 12, 13, 14 and 15).
The torque applying mechanism 4 comprises a torque applying motor 4.1, a rigid rotating upright column 4.2 and a rigid rotating sealing test bed 4.3; the torque applying motor provides torque for the test bed cutter head to rotate and break rock;
the rigid rotating upright column 4.2 and the rigid rotating seal test bed 4.3 are integrated mechanisms; the rigid rotary upright and the rigid rotary seal test bed can transmit the torque applied by the torque applying motor;
the rigid lifting hydraulic cylinder 3.1 is of a hollow structure;
the upper end of the rigid rotating upright post 4.2 is connected to the torque applying motor 4.1, and the lower end vertically penetrates through the middle part of the rigid lifting hydraulic cylinder 3.1 downwards and is fixed on a cutter head 5.2 of the combined rock breaking test bed;
the rigid rotary seal test bed 4.3 is positioned in the rigid lifting hydraulic cylinder 3.1 of the axial pressure applying mechanism;
the internal space of the rigid lifting hydraulic cylinder 3.1 is divided into an upper oil cavity 3.8 of the rigid hydraulic lifting cylinder and a lower oil cavity 3.9 of the rigid hydraulic lifting cylinder by the rigid rotary sealing test bed 4.3 and the rigid rotary upright post 4.2;
the upper oil inlet/return port 3.2 is arranged on the end face of the side of the upper oil cavity 3.8 of the rigid hydraulic lifting cylinder and is communicated with the upper oil cavity 3.8 of the rigid hydraulic lifting cylinder;
the lower oil inlet/return port 3.3 is arranged on the end surface of the rigid hydraulic lifting cylinder lower oil chamber 3.9 side and communicated with the rigid hydraulic lifting cylinder lower oil chamber 3.9 (as shown in fig. 14, 16, 17 and 18); when the hydraulic cylinder works, a hydraulic station is utilized to feed oil from an upper oil inlet and feed oil from a lower oil return port, the rigid rotating stand column is a fixing mechanism, the upper oil cavity of the rigid lifting hydraulic cylinder is filled with oil, and the whole axial pressure applying mechanism runs downwards. Similarly, a hydraulic station is used for feeding oil from a lower oil inlet, feeding oil from an upper oil return port, rigidly lifting the oil in a lower oil cavity of the hydraulic cylinder, and the whole shaft pressure applying mechanism upwards runs.
The rigid reaction frame 6 comprises a rigid reaction frame platform 6.1, a supporting synchronous rotating platform 6.2 and a rigid reaction frame 6.3; the rigid counter-force frame 6 provides a supporting counter-force for the test bed of the utility model, and the rigid counter-force frame 6 fixes the torque applying mechanism 4 through a rigid counter-force frame platform 6.1; the rigid reaction frame 6 plays a role in supporting and connecting the rigid rotating upright post 4.2 through a supporting synchronous rotating platform 6.2 on the rigid reaction frame 6;
two rigid reaction frame platforms 6.1 are arranged, and the two rigid reaction frame platforms 6.1 are arranged at the upper end of the rigid reaction frame 6.3 at intervals;
the supporting synchronous rotating platform 6.2 is fixed on the rigid reaction frame 6.3 and is positioned below the rigid reaction frame platform 6.1;
a torque application motor fixing hole 6.11 is formed in the middle of the rigid counterforce frame platform 6.1;
the middle part of the supporting synchronous rotating platform 6.2 is provided with a rigid rotating upright post through hole 6.21; the torque application motor fixing hole 6.11 is the same as the center line of the torque application motor fixing hole 6.11; the torque application motor 4.1 is fixed on the torque application motor fixing hole 6.11; the rigid rotating upright post 4.2 is rotationally connected with the rigid rotating upright post through hole 6.21;
the rigid reaction frame 6.3 is fixed to the outer periphery of the sample mounting platform 1.2 by the rigid reaction frame mounting base 6.4 (as shown in fig. 8, 18, 19 and 20).
The test method of the mechanical-hydraulic combined rock breaking comprehensive test bed comprises the following steps:
the method comprises the following steps: sample loading
The rock sample 7 is loaded on the sample mounting position 1.5 of the sample loading mechanism 1;
the sample confining pressure applying mechanism 2 and the sample axial pressure applying mechanism 3 which are filled with samples are connected through a rigid stress rod 3.5;
step two: axle pressure control
Oil is fed from an upper oil inlet/return port 3.2 by using a hydraulic station, oil is fed from a lower oil inlet/return port 3.3, a rigid rotating upright column 4.2 is a fixing mechanism, oil is filled into an upper oil cavity 3.8 of a rigid hydraulic lifting cylinder, and the whole sample axial pressure applying mechanism 3 runs upwards;
similarly, a hydraulic station is utilized to feed oil from the sample axial pressure applying mechanism 3.3, an upper oil inlet/return port is used for returning oil, a lower oil cavity 3.9 of the rigid hydraulic lifting cylinder is used for filling oil, and the whole sample axial pressure applying mechanism 3 runs downwards;
when the test sample mounting platform is located on the test sample mounting platform base, the lower oil cavity is filled with oil;
gradually utilizing a hydraulic station to feed oil from an upper oil inlet/return port 3.2, returning oil from a lower oil inlet/return port 3.3, taking a rigid rotating upright column 4.2 as a fixing mechanism, filling oil into an upper oil cavity 3.8 of a rigid hydraulic lifting cylinder, and enabling the whole sample axial pressure applying mechanism 3 to run upwards;
until a hydraulic cutting hob 5.1 of the cutter head working mechanism 5 contacts the upper surface of the rock sample 7, oil is continuously filled in an oil cavity 3.8 at the upper part of the rigid hydraulic lifting cylinder, and axial pressure is applied to the rock sample 7;
when only axial compression is applied to the rock sample 7, a penetration test can be performed;
continuously filling oil into an oil cavity 3.8 at the upper part of the rigid hydraulic lifting cylinder, and breaking rock by a hob;
step three: torque control
Starting from the contact of the hydraulic cutting hob 5.1 with the upper surface of the rock sample 7, when the axial pressure is continuously applied, the torque applying mechanism 4 works; the torque applying motor 4.1 drives the combined rock breaking test bed cutterhead 5.2 to rotate through the rigid rotating upright post 4.2, so as to realize rotary cutting rock breaking (as shown in fig. 20, 21, 22, 23 and 24).
The mechanical-hydraulic combined rock breaking comprehensive test bed can also perform tests including a linear cutting test and a confining pressure-free cutting test;
1) the linear cutting test comprises the following steps:
the arrangement mode (as shown in figure 25) of the cutter head 5.2 of the combined rock breaking test bed of the cutter head working mechanism 5 is changed, only confining pressure and axial pressure are applied to the rock sample 7, no torsional force is applied, and a linear cutting test can be performed on the rock sample 7;
when the test sample mounting platform works, the lower oil cavity 3.9 of the rigid hydraulic lifting cylinder is filled with oil, and the test sample mounting platform 1.2 is positioned on the test sample mounting platform base 1.1; the rigid rotating upright post 4.2 is fixed, and a sample box moves relative to a cutter head 5.2 of the combined rock breaking test bed on a guide rail 1.4 of a hydraulic propulsion device of the sample loading mechanism 1 to perform a linear cutting test;
wherein, the sample box generates a counter force when applying confining pressure to the sample during the test;
when the sample confining pressure applying mechanism 2 applies confining pressure, the confining pressure applying hydraulic propelling devices 2.1 in four directions are propelled to the sample mounting position 1.5 from four sides through the guide rails 1.4 of the hydraulic propelling devices, so that the rock sample 7 is enclosed in a tetragonal closed space;
the confining pressure applying hydraulic propulsion devices 2.1 in the four directions stay at the sample installation position 1.5, and the confining pressure applying hydraulic propulsion devices 2.1 in the four directions are connected through four sample box connecting members 8 by using screws;
the confining pressure applying hydraulic propelling device 2.1 in four directions and the four sample box connecting components 8 jointly form a sample box of a rock sample 7;
in test operation, the sample box connecting component 8 is provided with a screw rod connecting threaded through hole 8.1 for connecting the confining pressure applying hydraulic propelling device 2.1; correspondingly, a threaded drilling hole 2.11 corresponding to the screw connecting threaded through hole 8.1 is also arranged at the corresponding position of the confining pressure applying hydraulic propelling device 2.1; the screw is connected with the sample box connecting component 8 and the confining pressure applying hydraulic propelling device 2.1 through a screw connecting threaded through hole 8.1 and a threaded drilling hole 2.11 (shown in figures 27-30);
on the sample mounting platform 1.2, the sample box consisting of the confining pressure applying hydraulic propulsion device 2.1 and the sample box connecting component 8 is assembled; when confining pressure is applied to the rock sample 7, the confining pressure applying hydraulic propelling devices 2.1 in four directions provide counter-forces to each other, so as to provide a specified confining pressure for the rock sample 7 (as shown in fig. 25).
Mechanical-hydraulic combined rock breaking comprehensive test bed working process can also comprise the following steps:
2) the confining pressure-free cutting test comprises the following steps:
the real test bench can carry out rotary cutting and linear cutting test (as shown in figure 26) to rock sample 7 under no confined pressure state.
Other parts not described belong to the prior art.
Claims (9)
1. Mechanical-hydraulic combined rock breaking comprehensive test bed is characterized in that: the device comprises a sample loading mechanism (1), a sample confining pressure applying mechanism (2), a sample axial pressure applying mechanism (3), a torque applying mechanism (4), a cutter head working mechanism (5) and a rigid reaction frame (6);
the rigid reaction frame (6) is arranged on the peripheries of the sample loading mechanism (1), the sample confining pressure applying mechanism (2), the sample axial pressure applying mechanism (3), the torque applying mechanism (4) and the cutter head working mechanism (5);
the sample loading mechanism (1) is positioned in the sample confining pressure applying mechanism (2);
the cutter head working mechanism (5) is positioned above the sample confining pressure applying mechanism (2);
the upper end of the torque applying mechanism (4) is movably connected with the upper end and the lower end of the rigid reaction frame (6) and is connected with the cutter head working mechanism (5);
and the sample axial pressure applying mechanism (3) is arranged on the torque applying mechanism (4) and is positioned above the cutter head working mechanism (5).
2. The mechanical-hydraulic combined rock breaking comprehensive test bed according to claim 1, characterized in that: the cutterhead working mechanism (5) comprises a hydraulic cutting hob (5.1), a cutterhead (5.2) of the combined rock breaking test bed and a water jet rotary adjusting part (5.3); the hydraulic cutting hob (5.1) is circumferentially arranged on the cutter head (5.2) of the combined rock breaking test bed;
the hydraulic cutting hob (5.1) comprises a cutter main body (5.11), a cutter middle shaft (5.12), a cutter reinforcing part (5.13), a high-pressure water injection hole (5.14), a middle connecting device (5.15) and a high-pressure water jet channel (5.16);
the cutter middle shaft (5.12) is positioned on the central line of the cutter main body (5.11) and is a bearing part of the cutter main body (5.11);
the cutter reinforcing parts (5.13) are respectively positioned on two side surfaces of the cutter main body (5.11);
the high-pressure water injection hole (5.14) is positioned in the cutter middle shaft (5.12) and transversely penetrates through the cutter main body (5.11);
the middle connecting device (5.15) is positioned in the middle of the high-pressure water injection hole (5.14) and in the center of the cutter main body (5.11);
the high-pressure water jet channel (5.16) is arranged in the cutter main body (5.11) and communicated with the middle connecting device (5.15).
3. The mechanical-hydraulic combined rock breaking comprehensive test bed according to claim 2, characterized in that: a plurality of high-pressure water jet channels (5.16) are arranged; the high-pressure water jet channel (5.16) is radially arranged by taking the middle connecting device (5.15) as a center;
a nozzle (5.161) is arranged on the high-pressure water jet channel (5.16); the nozzle (5.161) is in communication with the high pressure water jet channel (5.16);
a water flow control valve (5.17) is arranged on the high-pressure water jet channel (5.16); the water flow control valve (5.17) is located between the middle connection means (5.15) and the nozzle (5.161);
a cutter steering sensor (5.18) is arranged on the side surface of the cutter main body (5.11);
a sensing line channel (5.19) is positioned in the cutter body (5.11) and the cutter reinforcing part (5.13) and between the water flow control valve (5.17) and the cutter steering sensor (5.18);
the sensing line channel (5.19) is of a hollow structure;
a sensing line (5.110) is arranged in the sensing line channel (5.19); the water flow control valve (5.17) is connected with the cutter steering sensor (5.18) through the sensing line (5.110);
the cutter body (5.11) is in a roller shape.
4. The mechanical-hydraulic combined rock breaking comprehensive test bed according to claim 3, characterized in that: the water jet cutter rotation adjusting part (5.3) comprises a high-pressure water pipeline butt joint port (5.31) and a water jet cutter rotation adjusting part disc (5.32); the high-pressure water pipeline butt joint port (5.31) is arranged on the water jet cutting rotation adjusting part disc (5.32);
the water jet cutting rotation adjusting part disc (5.32) is fixedly connected with a cutter head (5.2) of the combined rock breaking test bed;
the high-pressure water pipeline butt joint port (5.31) comprises a high-pressure water pipeline butt joint port front end (5.311) and a high-pressure water pipeline butt joint port rear end (5.312); the rear end (5.312) of the butt joint of the high-pressure water pipeline is connected with the high-pressure water sump (5.4) through an external high-pressure water inlet pipeline (5.5);
the front end (5.311) of the butt joint of the high-pressure water pipeline is connected with the high-pressure water injection hole (5.14);
high-pressure water pipeline to interface front end (5.311) with water sword rotation regulation portion (5.3) synchronous revolution, and with jointly break rock test bench blade disc (5.2) synchronous revolution.
5. The mechanical-hydraulic combined rock breaking comprehensive test bed according to claim 4, characterized in that: the sample loading mechanism (1) comprises a sample mounting platform base (1.1), a sample mounting platform (1.2), a guide rail base (1.3), a hydraulic propelling device guide rail (1.4) and a sample mounting position (1.5);
the sample mounting platform (1.2) is arranged on the sample mounting platform base (1.1); four corners of the sample mounting platform (1.2) are provided with rigid stress rod mounting threaded holes (1.21);
the guide rail base (1.3) is arranged on the periphery of the sample mounting platform base (1.1) and positioned on the periphery of the sample mounting position (1.5);
the guide rail (1.4) of the hydraulic propelling device is arranged on the guide rail base (1.3) and on the sample mounting platform (1.2); one end of the hydraulic propulsion device guide rail (1.4) is in smooth butt joint with the sample mounting platform (1.2).
6. The mechanical-hydraulic combined rock breaking comprehensive test bed according to claim 5, characterized in that: the sample confining pressure applying mechanism (2) comprises a confining pressure applying hydraulic propelling device (2.1) and a sliding block (2.2); the sliding block (2.2) is arranged at the lower end of the confining pressure applying hydraulic propelling device (2.1);
four confining pressure applying hydraulic propelling devices (2.1) are arranged, and the four confining pressure applying hydraulic propelling devices (2.1) are in sliding connection with the hydraulic propelling device guide rail (1.4) through the sliding block (2.2);
when the four confining pressure applying hydraulic propulsion devices (2.1) move to the sample mounting position (1.5), the four confining pressure applying hydraulic propulsion devices are connected to form a four-side closed structure.
7. The mechanical-hydraulic combined rock breaking comprehensive test bed according to claim 6, characterized in that: the sample axial pressure applying mechanism (3) comprises a rigid lifting hydraulic cylinder (3.1), an upper oil inlet/return port (3.2), a lower oil inlet/return port (3.3), a rigid stress rod upper mounting table (3.4), a rigid stress rod (3.5), a rigid stress rod upper mounting through hole (3.6) and a rigid stress rod upper mounting nut (3.7);
the upper mounting table (3.4) of the rigid stress rod and the sample mounting platform (1.2) are arranged at intervals;
the rigid lifting hydraulic cylinder (3.1) and the upper mounting nut (3.7) of the rigid stress rod are both positioned at the upper end of the upper mounting table (3.4) of the rigid stress rod; the upper oil inlet/return port (3.2) and the lower oil inlet/return port (3.3) are arranged on the side surface of the rigid lifting hydraulic cylinder (3.1) at intervals from top to bottom;
the upper mounting through holes (3.6) of the rigid stress rod are respectively arranged on four corners of the upper mounting table (3.4) of the rigid stress rod and positioned on the outer side of the rigid lifting hydraulic cylinder (3.1);
the lower end of the rigid stress rod (3.5) is in threaded connection with the rigid stress rod mounting threaded hole (1.21), and the upper end of the rigid stress rod passes through the rigid stress rod upper portion mounting through hole (3.6) from bottom to top and is fixed to the upper end of the rigid stress rod upper portion mounting platform (3.4) through the rigid stress rod upper portion mounting nut (3.7).
8. The mechanical-hydraulic combined rock breaking comprehensive test bed according to claim 7, characterized in that: the torque applying mechanism (4) comprises a torque applying motor (4.1), a rigid rotating upright post (4.2) and a rigid rotating sealing test bed (4.3);
the rigid rotating upright post (4.2) and the rigid rotating seal test bed (4.3) are integrated mechanisms;
the rigid lifting hydraulic cylinder (3.1) is of a hollow structure;
the upper end of the rigid rotating upright post (4.2) is connected to the torque applying motor (4.1), and the lower end of the rigid rotating upright post vertically penetrates through the middle part of the rigid lifting hydraulic cylinder (3.1) downwards and is fixed on a cutter head (5.2) of the combined rock breaking test bed;
the rigid rotary sealing test bed (4.3) is positioned in the rigid lifting hydraulic cylinder (3.1);
the internal space of the rigid lifting hydraulic cylinder (3.1) is divided into an upper oil cavity (3.8) of the rigid hydraulic lifting cylinder and a lower oil cavity (3.9) of the rigid hydraulic lifting cylinder by the rigid rotary sealing test bed (4.3) and the rigid rotary upright post (4.2);
the upper oil inlet/return port (3.2) is arranged on the end face of the side of the upper oil cavity (3.8) of the rigid hydraulic lifting cylinder and is communicated with the upper oil cavity (3.8) of the rigid hydraulic lifting cylinder;
and the lower oil inlet/return port (3.3) is arranged on the side end face of the lower oil cavity (3.9) of the rigid hydraulic lifting cylinder and is communicated with the lower oil cavity (3.9) of the rigid hydraulic lifting cylinder.
9. The mechanical-hydraulic combined rock breaking comprehensive test bed according to claim 8, characterized in that: the rigid reaction frame (6) comprises a rigid reaction frame platform (6.1), a supporting synchronous rotating platform (6.2), a rigid reaction frame (6.3) and a rigid reaction frame mounting base (6.4);
the number of the rigid reaction frame platforms (6.1) is two, and the two rigid reaction frame platforms (6.1) are arranged at the upper end of the rigid reaction frame (6.3) at intervals;
the supporting synchronous rotating platform (6.2) is fixed on the rigid reaction frame (6.3) and is positioned below the rigid reaction frame platform (6.1);
a torque application motor fixing hole (6.11) is formed in the middle of the rigid reaction frame platform (6.1);
a rigid rotating upright post through hole (6.21) is formed in the middle of the supporting synchronous rotating platform (6.2); the torque application motor (4.1) is fixed on the torque application motor fixing hole (6.11); the rigid rotating upright post (4.2) is rotationally connected with the rigid rotating upright post through hole (6.21);
the rigid reaction frame (6.3) is fixed on the periphery of the sample mounting platform (1.2) through the rigid reaction frame mounting base (6.4).
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110361278A (en) * | 2019-07-02 | 2019-10-22 | 中国科学院武汉岩土力学研究所 | Machinery-waterpower combined-breaking rock multi-function test stand and its test method |
| 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 |
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2019
- 2019-07-02 CN CN201921019640.1U patent/CN210803156U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110361278A (en) * | 2019-07-02 | 2019-10-22 | 中国科学院武汉岩土力学研究所 | Machinery-waterpower combined-breaking rock multi-function test stand and its test method |
| 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 |
| 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 |
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