CN214174058U - Combined rock breaking test device with high-pressure water jet and cutter working sequentially - Google Patents
Combined rock breaking test device with high-pressure water jet and cutter working sequentially Download PDFInfo
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- CN214174058U CN214174058U CN202022514487.9U CN202022514487U CN214174058U CN 214174058 U CN214174058 U CN 214174058U CN 202022514487 U CN202022514487 U CN 202022514487U CN 214174058 U CN214174058 U CN 214174058U
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Abstract
The utility model discloses a broken rock test device of combination of high pressure water jet, cutter sequence operation. The device comprises a cutter head, a mechanical hob structure, a high-pressure water jet structure and a scraper structure; the mechanical hob structure, the high-pressure water jet structure and the scraper structure are all arranged on the cutter head; the mechanical hob structure, the high-pressure water jet structure and the scraper structure are arranged on the cutter head in a partition manner; the scraper structure is positioned between the mechanical hob structure and the high-pressure water jet structure which are adjacently arranged. The utility model overcomes the engineering problem that the depth of the groove of the rock (especially hard rock and extremely hard rock) is shallow when the high-pressure water jet cutting rock is in a high-speed moving cutting state; has the advantages of high efficiency, low energy consumption, small abrasion, improvement on working environment of a working face and the like.
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, and more specifically it is a high pressure water jet, cutter sequential operation's unite broken rock test device that says so.
Background
The existing rock breaking technology adopts a combined rock breaking mode of combining a mechanical hob with a high-pressure water jet, and the rock breaking mode firstly forms a groove body with a certain depth on a rock through the high-pressure water jet and then rolls a local block formed by isolating two adjacent groove bodies through the mechanical hob. The limitation of this type of combined rock breaking is that for practical engineering, a high-pressure water jet device is often required to cut the rock at a fast advancing speed, however, at a high advancing speed, even if the jet pressure of the high-pressure water jet is great, it is still difficult to form a deep cutting depth, as shown in fig. 6, the rock breaking is performed by matching a single water jet cutting groove with a mechanical hob: under higher advancing speed, the water jet grooving depth is shallower, and the crack extension length that mechanical hob formed on the rock mass has crossed the deepest of grooving, and the grooving action can not utilize the crack that mechanical hob formed completely, causes the waste of mechanical energy, carries out the local rock mass that can not the fracture this position.
Therefore, it is needed to develop a rock breaking device for deepening the cutting depth of the water jet.
Disclosure of Invention
The utility model aims at providing a high-pressure water jet, the combined rock breaking test device of cutter order operation, be provided with the scraper between high-pressure water jet and the mechanical hobbing cutter, deepen through widening of mechanical scraper after the water jet grooving, break rock through water jet + scraper grooving cooperation mechanical hobbing cutter promptly, the grooving degree of depth after the increase is d2 (as shown in fig. 7), this degree of depth can utilize the crackle that mechanical hobbing cutter formed in the rock block completely, can be better send the fracture breakage to this position rock block, thereby realize cutting many depths, broken many depths, the hobbing cutter roll extrusion mechanical energy of cutting rock is utilized to high efficiency more, realize high efficiency, the rock is broken to the low energy consumption.
In order to realize the purpose, the technical scheme of the utility model is that: high pressure water jet, the joint broken rock test device of cutter sequence operation, its characterized in that: the device comprises a cutter head, a mechanical hob structure, a high-pressure water jet structure and a scraper structure; the mechanical hob structure, the high-pressure water jet structure and the scraper structure are all arranged on the cutter head;
the mechanical hob structure, the high-pressure water jet structure and the scraper structure are arranged on the cutter head in a partition manner;
the scraper structure is positioned between the mechanical hob structure and the high-pressure water jet structure which are adjacently arranged.
In the technical scheme, a mechanical hob structure, a high-pressure water jet structure and a scraper structure form a working group;
and the TBM cutter head is provided with a plurality of working groups.
In the technical scheme, the size of the scraper structure is matched with the width of the hydraulic cutting groove;
the width of the scraper structure is greater than or equal to the width of the hydraulic incision.
In the technical scheme, the scraper structure comprises a scraper and a scraper module; the scraper module is fixed on the cutter head, and the scraper is installed on the scraper module.
In the technical scheme, the scraper is a PDC cutting tooth scraper;
the scraper comprises a blade and a cutter handle; the blade is arranged on the scraper module through a cutter handle;
the length of the cutting edge is equal to that of the knife handle, and the width of the cutting edge is larger than that of the knife handle.
In the above technical solution, there are one or more scrapers;
when the scraper has a plurality ofly, install after a plurality of scraper combinations are a whole on the scraper module, and be located adjacent setting between mechanical hobbing cutter structure and the high pressure water jet structure.
The utility model has the advantages of as follows:
(1) the utility model discloses can innovate a high pressure water jet grooving, after mechanical scraper widen deepens the grooving, the rock cutting structure that has three free surface local rock mass samples that the broken grooving of mechanical hobbing cutter roll extrusion cuts off the formation, the test equipment will develop the work research in the aspect of machinery + hydraulic power jointly breaks the rock, the research progress will be served in rock crushing fields such as TBM tunnel tunnelling engineering;
(2) the utility model discloses widen the deepening behind the water jet grooving through mechanical scraper, namely break rock through water jet + scraper grooving cooperation mechanical hobbing cutter order, widen the grooving degree of depth after the deepening and can fully utilize the crackle that mechanical hobbing cutter formed in the rock block, can be better to this position rock block send the fracture breakage to realize cutting how deep, break how deep, utilize the hobbing cutter roll extrusion mechanical energy of cutting rock more high-efficiently, realize high efficiency, the broken rock of low energy consumption;
(3) compared with the traditional process method for crushing rocks by using a mechanical hob, the utility model has the advantages of high efficiency, low energy consumption, small abrasion and improvement on the working environment of a working face in the field of rock crushing represented by tunnel excavation;
(4) on the other hand the utility model discloses utilize the scraper to install in the hobbing cutter rear to the deepening effect of the cutting cell body of rock, can overcome high pressure water jet cutting rock well under high-speed removal cutting state, to the shallower engineering difficult problem of the grooving degree of depth of rock (especially hard rock and extremely hard rock), be favorable to the machinery + the better popularization and application in the realization engineering of hydraulic combined rock breaking technique.
Drawings
Fig. 1 is a schematic structural diagram of the high-pressure water jet structure and the scraper structure of the present invention working successively.
Fig. 2 is a schematic view of the rolling groove body with mechanical hob structure of the present invention.
Fig. 3 is a schematic perspective view of the scraper structure of the present invention.
Fig. 4 is a view taken along direction a of fig. 3.
Fig. 5 is a view from direction B of fig. 3.
FIG. 6 is a schematic diagram of rock breaking by using a high-pressure water jet structure and a mechanical hob structure alone in the prior art.
Fig. 7 is the utility model discloses a broken rock schematic diagram of high pressure water jet structure and scraper structure cooperation machinery hobbing cutter structure.
Fig. 8 is a plan view of a TBM cutter head according to the present invention.
Figure 9 is a schematic diagram of the TBM cutterhead cutting operation of figure 8.
Fig. 10 is that the scraper structure in the present invention has a plurality of, and a plurality of scraper structure combinations are installed after being a whole in circumferential direction on the TBM cutter head.
Figure 11 is a schematic diagram of the TBM cutterhead cutting operation of figure 10.
Fig. 12 is a schematic structural diagram of the high-pressure water jet structure according to the present invention.
Fig. 13 is a front view of the lateral movement screw of the present invention.
Fig. 14 is a front view of the high pressure water nozzle of the present invention.
Fig. 15 is a bottom view of the high pressure water nozzle of the present invention.
Fig. 16 is the utility model discloses be applied to the high pressure water modular structure schematic diagram in the broken rock test bench of joint.
Fig. 17 is the utility model discloses be applied to scraper module structure schematic diagram in jointly breaking rock test bench.
Fig. 18 is a schematic structural view of a mechanical hob structure in the present invention.
Fig. 19 the utility model discloses be applied to mechanical hobbing cutter module structure sketch map in combining broken rock test platform.
Fig. 20 is the utility model discloses be applied to the work schematic diagram in combining broken rock test bench.
Fig. 21 is a schematic diagram of the rock breaking operation of the present invention when there are a plurality of scrapers.
Fig. 22 is a schematic structural view of the TBM device according to the present invention.
The arrows in fig. 1 and 2 indicate the traveling direction of the TBM deck.
M in fig. 6 denotes a compact core; d1 represents the depth of the hydraulic cut formed by the high pressure water jet structure jet.
M in fig. 7 denotes a compact core; d1 represents the depth of the hydraulic cutting formed by the high-pressure water jet structure; the delta h represents the deepening depth of the hydraulic grooving by adopting a scraper structure; d2 shows the depth of the tank body after the high-pressure water jet structure and the scraper structure are sequentially treated.
Q2 in fig. 8 and 9 indicates the direction of rotation of one type of TBM cutterhead.
Q3 in fig. 10 and 11 indicates the direction of rotation of the alternative TBM cutterhead.
In fig. 16, a1 denotes a high-pressure water system lift cylinder; and Y represents a hydraulic cylinder.
In FIG. 17, A2 shows the normal force loading and lift cylinder; and Y represents a hydraulic cylinder.
In FIG. 19, A3 shows the normal force loading and lift cylinder; y represents a hydraulic oil cylinder; z represents a rigid scaffold.
In fig. 20, G1 denotes a cartridge tension hook; g2 denotes a tension cylinder; and Y represents a hydraulic cylinder.
As can be seen from fig. 21, when there are a plurality of blades, the structure of each blade is the same; the length dimension of the scraper close to the water jet nozzle is small, and the length dimension of the scraper is larger as the scraper is farther away from the water jet nozzle.
In fig. 22, C denotes a nozzle of the high-pressure water jet structure; d represents a water jet rotation adjusting part; e represents a water sump; f represents the external water pipeline of the water jet cutter; and G represents a high-pressure water pipeline.
In the figure, 1-trough body, 2-mechanical hob structure, 2.1-mechanical hob, 2.2-mechanical hob module, 3-high pressure water jet structure, 3.1-high pressure water nozzle, 3.2-high pressure water nozzle mounting bracket, 3.3-transverse moving screw, 3.4-transverse moving bracket, 3.5-vertical moving screw, 3.6-transverse screw mounting sleeve, 3.7-vertical screw mounting sleeve, 4-cutterhead, 5-rotary drive, 6-hydraulic grooving, 7-scraper structure, 7.1-scraper, 7.11-knife edge, 7.12-knife handle, 7.2-scraper module, 8-walking mechanism, 9-outer frame, 10-rear support, 11-outer frame upper supporting shoe, 12-lifting oil cylinder mechanism, 13-sample mounting platform, 14-sample mounting platform base, 15-sample box, 16-sample box rail and 17-rock mass.
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 combined rock breaking test device with the sequential operation of the high-pressure water jet and the cutter comprises a cutter head 4, a mechanical hob structure 2, a high-pressure water jet structure 3 and a scraper structure 7; the mechanical hob structure 2, the high-pressure water jet structure 3 and the scraper structure 7 are all arranged on the cutter head 4; the mechanical hob structure 2, the high-pressure water jet structure 3 and the scraper structure 7 are arranged on the cutter head 4 in a partition manner; the widening deepening of the mechanical scraper after the water jet grooving is performed, and then the rock is broken through the mechanical hob rolling, namely the rock is broken through the water jet and the scraper grooving in a matching manner with the mechanical hob in sequence, the deepened grooving depth can be fully utilized for cracks formed in the rock block by the mechanical hob, and the rock block at the part can be well cracked and broken, so that the cutting depth and the breaking depth are increased, the mechanical energy of the hob rolling for cutting the rock is more efficiently utilized, and the rock breaking with high efficiency and low energy consumption is realized.
Further, the mechanical hob structure 2, the high-pressure water jet structure 3 and the scraper structure 7 form a working group;
a plurality of working groups are circumferentially arranged on the TBM cutter head 4;
the scraper structure 7 is positioned between the mechanical hob structure 2 and the high-pressure water jet structure 3 which are adjacently arranged;
in the advancing direction of the cutter head 4, the high-pressure water jet structure 3 is arranged in front of the scraper structure 7; the scraper structure 7 is arranged in front of the mechanical hob structure 2 (as shown in fig. 8 and 10); rock is broken through water jet + scraper grooving + mechanical hobbing cutter order, widens the water jet grooving degree of depth after the deepening and can utilize mechanical hobbing cutter to form the crackle in the rock block completely, can be better to this position rock block send the breakage that splits to realize cutting how deep, broken how deep, the hobbing cutter roll extrusion mechanical energy of cutting rock is utilized to the high efficiency more, the broken rock of low energy consumption.
Further, the size of the scraper structure 7 matches the width of the cutting hydraulic grooving 6 of the diameter of the water jet water bead sprayed by the high-pressure water jet structure 3;
the maximum width of the blade structure 7 is slightly larger than the width of the hydraulic incision 6 (as shown in fig. 1, 3, 4, 5, 6, 7).
Further, the scraper structure 7 comprises a scraper 7.1 and a scraper module 7.2; the scraper module 7.2 is fixed on the cutter head 4, and the scraper 7.1 is installed on the scraper module 7.2; the scraper structure 7 is used for widening the deepened water jet cutting groove, thereby realizing how deep cutting and how deep breaking are carried out.
Further, the scraper 7.1 is a PDC pick scraper; the scraper is a PDC material (wherein, PDC (polycrystalline Diamond compact) is the prior art);
the scraper 7.1 comprises a blade edge 7.11 and a shank 7.12; the blade 7.11 is mounted on the scraper module 7.2 through a shank 7.12;
the length of the cutting edge 7.11 is equal to that of the shank 7.12, and the width of the cutting edge is larger than that of the shank 7.12 (as shown in fig. 1, 3, 4 and 5); the height of the scraper 7.1 is selected according to the actual engineering situation; the height of the blade is greater than the depth of the hydraulic cutting groove, and the width of the blade is slightly greater than the width of the hydraulic cutting groove; the deepened water jet grooving is widened, so that the cutting depth and the breaking depth are realized.
Further, one or more of the scrapers 7.1;
when a plurality of scrapers 7.1 are arranged, the plurality of scrapers 7.1 are combined into a whole and then are arranged on the scraper module 7.2 and are positioned between the mechanical hob structure 2 and the high-pressure water jet structure 3 which are adjacently arranged; when a plurality of scrapers are arranged, three scrapers are arranged on one scraper module, each scraper has the same structure, the size length of the scraper close to the water jet nozzle is small, the size length of the scraper is larger when the scraper is farther away from the water jet nozzle (as shown in fig. 21), and the rock breaking effect of the structure is better.
Further, the high-pressure water jet structure 3 comprises a high-pressure water nozzle 3.1, a high-pressure water nozzle mounting bracket 3.2, a transverse moving screw 3.3, a transverse moving bracket 3.4 and a vertical moving screw 3.5;
the high-pressure water nozzle 3.1 is arranged on the high-pressure water nozzle mounting bracket 3.2;
the high-pressure water nozzle mounting bracket 3.2 is mounted on the transverse moving screw 3.3 through a transverse screw mounting sleeve 3.6;
the transverse moving screw 3.3 is arranged on the transverse moving bracket 3.4; the transverse moving bracket 3.4 is connected with the vertical moving screw 3.5 through a vertical screw mounting sleeve 3.7 (as shown in figures 12, 13, 14 and 15); the high-pressure water nozzle 3.1 and the lifting oil cylinder are connected in a long screw rod and threaded hole mode, a long screw rod penetrates through a fixed threaded hole, a component needing to be moved is fixed at one end of the long screw rod, and the long screw rod is screwed to naturally drive the component device fixed on the long screw rod.
Further, one or more high-pressure water nozzles 3.1 are mounted on the high-pressure water nozzle mounting bracket 3.2; the water of the high-pressure water nozzle is from an external high-pressure water pump and is connected through a high-pressure water pipe;
the screw rod mounting sleeve 3.6 is connected with the transverse moving screw rod 3.3 through threads;
the vertical screw mounting sleeve 3.7 is connected with the vertical moving screw 3.5 through threads (as shown in fig. 12, 13, 14, 15 and 16); the high-pressure water nozzle provides high-pressure water jet for cutting a rock sample through an external high-pressure water pump; the high-pressure water nozzle moving mechanism comprises the moving screw and the screw mounting sleeve, the moving screw can move on the screw mounting sleeve to drive the high-pressure water jet nozzle to move in the transverse and vertical directions, and the moving distance can be adjusted according to actual needs;
the high pressure water nozzle is mounted to the moving bracket by the high pressure water nozzle mounting bracket.
The mechanical hob structure 2 comprises a mechanical hob 2.1 and a mechanical hob module 2.2 (as shown in fig. 18, 19 and 20);
the mechanical hob 2.1 is arranged on the mechanical hob module 2.2, and the rolling crushing effect of the mechanical hob structure is improved.
The high-pressure water nozzle realizes the large-amplitude up-and-down movement of the nozzle through the high-pressure water system lifting oil cylinder, and the high-pressure water nozzle realizes the large-amplitude adjustment of the high-pressure water nozzle in the transverse direction and the small-amplitude movement of the high-pressure water nozzle in the vertical direction through the moving screw rod.
The scraper module comprises a normal force loading and lifting oil cylinder, a cutter mounting frame and a scraper cutter. The scraper cutter is installed on the cutter mounting frame, and the normal force loading and the lifting oil cylinder provide normal force and stroke for the penetration of the scraper.
The hob module comprises the hob, a cutter mounting frame and a normal force loading and lifting oil cylinder, the hob is installed on the cutter mounting frame, and the normal force loading and lifting oil cylinder provides normal force and stroke for the penetration of the hob.
With reference to the accompanying drawings: the application of the combined rock breaking test device with the sequential operation of the high-pressure water jet and the cutter is to apply the combined rock breaking test device with the sequential operation of the high-pressure water jet and the cutter to a combined rock breaking test bed;
the combined rock breaking test bed further comprises a frame 11, a lifting oil cylinder mechanism 12, a sample mounting platform 13, a sample mounting platform base 14, a sample box 15, a sample box rail 16 and a travelling mechanism 8;
the sample mounting platform base 14 is mounted at the lower end in the frame 11, and the sample mounting platform 13 is arranged on the sample mounting platform base 14;
the lifting oil cylinder mechanism 12 is arranged at the upper end in the frame 11 and is positioned above the sample mounting platform 13, and the lifting oil cylinder mechanism 12 is connected with the combined rock breaking test device with high-pressure water jet and cutter working sequentially; the cartridge track 16 is disposed on the specimen mounting platform 13; the sample box 15 is mounted on the sample mounting platform 13 through a sample box rail 16;
the travelling mechanism 8 is connected with the sample box 15; the rock mass 17 is installed in the sample box 15 (as shown in fig. 16, 17, 18, 19 and 20);
the sample box is a confining pressure mechanism, and through a hydraulic flat jack, counterforce is supported by means of the outer wall of the rigid sample box, so that confining pressure is provided for a rock sample in the sample box.
The sample mounting platform is a position for mounting a sample box, and a sample box track is arranged on the sample mounting platform.
The traveling mechanism comprises the tension oil cylinder, the tension oil cylinder is connected with the sample box through the sample box tension hook, and the sample box tension hook is in rigid connection with the sample box and has an anti-overturning effect.
The sample box can slide freely on a sample box rail, the tension oil cylinder can pull the sample box to move on the sample box rail, a test on a rock sample in the sample box is started after the sample box reaches a certain position, the test process is maintained at a certain speed, and the tension oil cylinder is servo-controlled (as shown in fig. 20).
With reference to the accompanying drawings: the application of the combined rock breaking test device with the sequential operation of the high-pressure water jet and the cutter is to apply the combined rock breaking test device with the sequential operation of the high-pressure water jet and the cutter to a TBM device;
the TBM device also comprises a rotary drive 5, an outer frame 9, a rear support 10 and an outer frame upper support shoe 11; the outer frame 9 is arranged on the periphery of the rotary drive 5; the rotary drive 5 is positioned at the rear side of the combined rock breaking test device with the high-pressure water jet and the cutter working sequentially and is connected with the combined rock breaking test device with the high-pressure water jet and the cutter working sequentially;
the rear support 10 is located behind the rotary drive 5; the outer frame upper shoe 11 is located between the rotary drive 5 and the rear support 10 (as shown in figure 22).
General behind the combined rock breaking test device of high pressure water jet, cutter sequence operation be applied to the TBM device, TBM's construction method is:
the method comprises the following steps: aligning the TBM cutter head 4 to the rock cutting position;
step two: starting the TBM cutter head 4 to enable the TBM cutter head 4 to move forward by one stroke;
the specific process is as follows: the high-pressure water jet structure 3 and the TBM cutterhead 4 arranged on the TBM cutterhead 4 are driven to rotate by a rotary drive 5;
the water jet cutter is externally connected with a water pipeline 13 to supply water to the high-pressure water jet structure 3;
when the TBM cutterhead 4 breaks rocks in the advancing direction, firstly, when the high-pressure water jet structures 3 rotate along with the rotation direction of the TBM cutterhead 4, high-pressure water jet flows to the rocks between two adjacent mechanical hob structures 2, and a hydraulic cutting groove 6 is formed in the rocks;
next, the scraper structure 7 extends into the hydraulic cutting groove 6 to deepen and widen the hydraulic cutting groove 6 to form a groove body 8;
finally, the mechanical hob structure 2 performs rolling cutting on the rock above the two sides of the hydraulic cutting groove 6; after the action of the mechanical hob structure 2 and the high-pressure water jet structure 3, the formed local rock block is crushed by utilizing the rolling cutting action of the mechanical hob, so that the efficient crushing of the rock is formed;
step three: repeating the second step, and starting the next stroke operation of the TBM cutter head 4 until the rock cutting groove is completed (as shown in figures 1, 2, 4, 7, 8, 9, 10, 11, 12 and 22); the utility model discloses deepening through widening of mechanical scraper after the water jet grooving, through the broken rock of water jet + scraper grooving cooperation mechanical hobbing cutter promptly, the grooving degree of depth after the increase is d2, the crackle that this degree of depth can utilize mechanical hobbing cutter to form in the rock block completely, can be better send the breakage of splitting to this position rock block to realize cutting many deeply, brokenly many deeply, the hobbing cutter roll extrusion mechanical energy of cutting rock is utilized to the high efficiency more, the broken rock of low energy consumption.
In order to illustrate more clearly the utility model discloses a high pressure water jet, the joint rock breaking test device of cutter order operation compare the advantage that has with prior art, the staff has carried out the contrast with these two kinds of technical scheme, its contrast result is as follows:
according to last table, high pressure water jet, cutter sequence operation's joint broken rock test device compare with prior art, utilize high pressure water jet + mechanical scraper + mechanical hobbing cutter's the broken rock mode of order, broken rock is efficient, broken rock energy consumption is low, wearing and tearing are little, can improve working face operational environment.
Other parts not described belong to the prior art.
Claims (6)
1. High pressure water jet, the joint broken rock test device of cutter sequence operation, its characterized in that: the automatic water jet cutting machine comprises a mechanical hob structure (2), a cutter head (4), a high-pressure water jet structure (3) and a scraper structure (7), wherein the mechanical hob structure (2), the high-pressure water jet structure (3) and the scraper structure (7) are all arranged on the cutter head (4);
the mechanical hob structure (2), the high-pressure water jet structure (3) and the scraper structure (7) are arranged on the cutter head (4) in a partition manner;
the scraper structure (7) is located between the mechanical hob structure (2) and the high-pressure water jet structure (3) which are adjacently arranged.
2. The high-pressure water jet and cutter sequential operation combined rock breaking test device according to claim 1, characterized in that: the mechanical hob structure (2), the high-pressure water jet structure (3) and the scraper structure (7) form a working group;
and the TBM cutter head (4) is provided with a plurality of working groups.
3. A combined rock breaking test device with high pressure water jet and cutter working in sequence as claimed in claim 2, characterized in that: the size of the scraper structure (7) is matched with the width of the hydraulic cutting groove (6);
the width of the scraper structure (7) is greater than or equal to the width of the hydraulic cutting groove (6).
4. The high-pressure water jet and cutter sequential operation combined rock breaking test device according to claim 3, characterized in that: the scraper structure (7) comprises a scraper (7.1) and a scraper module (7.2); the scraper module (7.2) is fixed on the cutter head (4), and the scraper (7.1) is installed on the scraper module (7.2).
5. The high-pressure water jet and cutter sequential operation combined rock breaking test device according to claim 4, characterized in that: the scraper (7.1) is a PDC cutting tooth scraper;
the scraper (7.1) comprises a blade (7.11) and a handle (7.12); the cutting edge (7.11) is mounted on the scraper module (7.2) through a cutter handle (7.12);
the length of the cutting edge (7.11) is equal to that of the knife handle (7.12), and the width of the cutting edge is larger than that of the knife handle (7.12).
6. The high-pressure water jet and cutter sequential operation combined rock breaking test device according to claim 5, characterized in that: one or more of the scrapers (7.1);
when scraper (7.1) have a plurality ofly, install after a plurality of scrapers (7.1) combination are a whole on scraper module (7.2), and be located adjacent setting between mechanical hobbing cutter structure (2) and high-pressure water jet structure (3).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022514487.9U CN214174058U (en) | 2020-11-04 | 2020-11-04 | Combined rock breaking test device with high-pressure water jet and cutter working sequentially |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022514487.9U CN214174058U (en) | 2020-11-04 | 2020-11-04 | Combined rock breaking test device with high-pressure water jet and cutter working sequentially |
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| CN214174058U true CN214174058U (en) | 2021-09-10 |
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