CN202788619U - Integral drill bit for drilling and cutting - Google Patents
Integral drill bit for drilling and cutting Download PDFInfo
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- CN202788619U CN202788619U CN 201220505316 CN201220505316U CN202788619U CN 202788619 U CN202788619 U CN 202788619U CN 201220505316 CN201220505316 CN 201220505316 CN 201220505316 U CN201220505316 U CN 201220505316U CN 202788619 U CN202788619 U CN 202788619U
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- drill bit
- housing
- brill
- drilling rod
- rear end
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Abstract
The utility model discloses an integral drill bit for drilling and cutting. The integral drill bit for drilling and cutting comprises a drill bit shell body and a hydraulic power cutting assembly which is arranged inside the drill bit shell body. The drill bit moves forward and backward in the transverse direction inside the drill bit shell body through the hydraulic power cutting assembly, so that switch between drilling and cutting is achieved. A first drilling cutter is arranged outside the front end of the drill bit shell body, and a first water drainage channel which is communicated with an inner cavity of the drill bit shell body is arranged at the front end of the drill bit shell body. The hydraulic power cutting assembly comprises a hydraulic power self-rotating cutting head, a first guide tube and a rotating connection head, wherein the hydraulic power self-rotating cutting head, the first guide tube and the rotating connection head are connected in sequence. The hydraulic power self-rotating cutting head is arranged inside the front end of the drill bit shell body. A first limiting mechanism is arranged on the inner wall of the drill bit shell body on the periphery of the first guide tube, and a second limiting mechanism is arranged on the inner wall of the drill bit shell body behind the first limiting mechanism. The hydraulic power self-rotating cutting head is provided with a nozzle. The integral drill bit for drilling and cutting is compact in structure, lowers the equipment purchase cost and the use cost, shortens the labor time, lowers the labor cost, improves the drainage efficiency of coal seam gas and is strong in practicality and high in popularization and application value.
Description
Technical field
The utility model belongs to the control of coalmine gas equipment technical field, especially relates to a kind of brill and cuts the one drill bit.
Background technology
At present control of coalmine gas mainly is to take out in advance gas in the coal seam by construction drill, avoids the gas accident in the coal mining process.Use the pre-gas pumping of single borehole, bore diameter is the key factor that affects the gas drainage under suction effect: the aperture is little, and then the scope of freedom is little, and the mass rate of emission of gas is low, waits for that the time of exploitation is longer, has affected the production efficiency of mine; And the aperture can not be too large, otherwise under the combined stress of coal seam, the formation in hole and the stability in hole can be damaged, and the large boring rate of penetration in aperture is slower, efficient is lower, need larger extrinsic motive, effective coal hole section of boring often only accounts for the sub-fraction of whole boring, and aperture too large boring fully there is no need to construct.
A method that addresses the above problem at present is high-pressure water jet slot technology and hydraulic reaming technology, this technology is after the drilling construction end withdraws from drilling tool from boring, utilize rig, to have the drilling rod of pressure maintaining performance and the shower nozzle of drilling rod front end is delivered in the boring, be connected high-pressure rubber pipe to connect with high-pressure hydraulic pump on the pressurize drilling rod, utilize water under high pressure that the coal seam is cut or reaming, this technology has improved the exposed area of coal body, thereby has greatly improved the drainage efficient of coal-bed gas.But when this technology was used, after drilling construction need to being finished, transporting and cutting apparatus had increased working procedure to the hole again.
The utility model content
Technical problem to be solved in the utility model is for above-mentioned deficiency of the prior art, provide a kind of brill to cut the one drill bit, its compact conformation, rationally novel in design, processing and fabricating is convenient, equipment purchasing cost and use cost have been reduced, shorten labour hour and labour cost, improved the drainage efficient of coal-bed gas, practical, result of use is good, and application value is high.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of brill cuts the one drill bit, it is characterized in that: comprise the drill bit housing and be arranged on the interior waterpower cutting assembly of drill bit housing, described drill bit is realized creeping into and the switching of cutting by described waterpower cutting assembly laterally moving forward and backward in the drill bit housing, the front end arranged outside of described drill bit housing has first to creep into cutter, and the front end of described drill bit housing has the first row aquaporin that is communicated with drill bit housing inner chamber; Described waterpower cutting assembly comprises the hydraulic spinning cutting head that connects successively, the first conduit and swivel joint, it is inner that described hydraulic spinning cutting head is arranged on described drill bit housing front end, be positioned on the drill bit inner walls of described the first conduit periphery and be provided with the first position-limit mechanism that limits for backward shift position and position of rotation to described hydraulic spinning cutting head, be positioned at and be provided with on the drill bit inner walls at described the first position-limit mechanism rear for to the moving forward that the position limits and be used for forming with described waterpower cutting assembly the second position-limit mechanism of hermetically-sealed construction of described waterpower cutting assembly, the nozzle for jet water course is installed on the described hydraulic spinning cutting head.
Above-mentioned a kind of brill cuts the one drill bit, it is characterized in that: described swivel joint is set with sliding sleeve outward, described sliding sleeve outer wall is close to the setting of described drill bit inner walls, axially have the current groove that multiple tracks is passed through from back to front for current on the described sliding sleeve outer wall or on the described drill bit inner walls, the front end of described sliding sleeve is provided be used to the cyclic convex edge that is against on described the second position-limit mechanism rear end end face, the rear end of described sliding sleeve is connected with for the gland that described swivel joint is fixed in the described sliding sleeve, and the center of described gland has the gland centre bore that water supply stream passes through.
Above-mentioned a kind of brill cuts the one drill bit, it is characterized in that: described drill bit housing creeps into housing and creeps into back-connected the first drilling rod of housing and be connected housing two parts and consist of with first by first, a plurality of described first row aquaporins and a plurality of described first creep into cutter and evenly are arranged on the described first front end outside of creeping into housing, described the first position-limit mechanism is positioning joint and is connected to described first and creeps on the inwall of housing, described the second position-limit mechanism consists of by being arranged on the described first rear end end face that creeps into the ring-type spacing preiection on the inner walls, is provided with for the drilling rod connecting thread that is connected with drill rod thread on the rear end inwall of described the first drilling rod connection housing.
Above-mentioned a kind of brill cuts the one drill bit, it is characterized in that: be positioned at first of described sliding sleeve periphery and creep into and axially have the first gathering sill on the inner walls, radially have the first vertical through hole on the described sliding sleeve, in the described first vertical through hole the first feather key that matches with described the first gathering sill is installed.
Above-mentioned a kind of brill cuts the one drill bit, it is characterized in that: described the first feather key be shaped as " L " shape.
Above-mentioned a kind of brill cuts the one drill bit, it is characterized in that: described the first drilling rod connection housing and described first creeps into the housing rear threads and is connected, and described the first drilling rod connection housing and described first creeps into and is provided with the first pad between the housing.
Above-mentioned a kind of brill cuts the one drill bit, it is characterized in that: the front end that described the first drilling rod connects housing is threaded in described first, and to creep into the rear end of housing inner, and described the first drilling rod connects between the rear end end face of the front end end face of housing and described gland and is provided with spring.
Above-mentioned a kind of brill cuts the one drill bit, it is characterized in that: the periphery around described gland centre bore on the described gland has one or more gland through holes.
Above-mentioned a kind of brill cuts the one drill bit, it is characterized in that: the rear end of described swivel joint is connected with the second conduit, the rear end of described the second conduit is connected with seal cover, the center of described seal cover has the seal cover centre bore that water supply stream passes through, and the first half external diameter of described seal cover can be against on the rear end end face of described the second position-limit mechanism greater than the front end end face of latter half of external diameter and described seal cover.
Above-mentioned a kind of brill cuts the one drill bit, it is characterized in that: the rear end of described seal cover is provided with the filter screen that covers on the described seal cover centre bore, the rear end of described seal cover is connected with the end cap for fixing described filter screen, and the center of described end cap has the end cap central bore that water supply stream passes through.
Above-mentioned a kind of brill cuts the one drill bit, it is characterized in that: described end cap is threaded with the rear end of described seal cover.
Above-mentioned a kind of brill cuts the one drill bit, it is characterized in that: described drill bit housing creeps into housing by second, creep into the back-connected sleeve pipe of housing and be connected housing three parts formation with back-connected the second drilling rod of sleeve pipe with second, a plurality of described first row aquaporins and a plurality of described first creep into cutter and evenly are arranged on the described second front end outside of creeping into housing, described the first position-limit mechanism is positioning joint and is connected to described second and creeps on the inwall of housing, described the second position-limit mechanism is made of the rear end end face of the described sleeve pipe that extend into described the second drilling rod connection enclosure interior, described seal cover is arranged on described the second drilling rod and connects in the housing, is provided with for the drilling rod connecting thread that is connected with drill rod thread on the rear end inwall of described the second drilling rod connection housing.
Above-mentioned a kind of brill cuts the one drill bit, it is characterized in that: be provided with sealed groove on the rear end end face of described sleeve pipe, be provided with the sealing mat between the rear end end face of the front end end face of described seal cover and described sleeve pipe in the described sealed groove.
Above-mentioned a kind of brill cuts the one drill bit, it is characterized in that: the second drilling rod that is positioned at described seal cover periphery connects on the inner walls and axially has multiple tracks the second gathering sill, radially have the second vertical through hole on the described seal cover, the second feather key that matches arbitrarily in described the second gathering sill of multiple tracks is installed in the described second vertical through hole.
Above-mentioned a kind of brill cuts the one drill bit, it is characterized in that: described sleeve pipe and described second creeps into the housing rear threads and is connected, described the second drilling rod connects housing and is connected with described sleeve pipe rear threads, is provided with the second pad between described the second drilling rod connection housing and the described sleeve pipe.
Above-mentioned a kind of brill cuts the one drill bit, it is characterized in that: be provided with annular projection on described the second drilling rod connection housing rear inside wall, be provided with spring between the rear end end face of described annular projection and described end cap.
Above-mentioned a kind of brill cuts the one drill bit, it is characterized in that: described hydraulic spinning cutting head comprises the cutting head housing, described cutting head housing rear end is provided with water inlet, the front portion of described cutting head housing radially has the first eccentric delivery port and the second eccentric delivery port, the described first eccentric delivery port and the second eccentric delivery port all are connected with described water inlet, the axis of the axis of described the first eccentric delivery port and the second eccentric delivery port is two parallel lines, be provided with internal thread in the described first eccentric delivery port and in the described second eccentric delivery port, the quantity of described nozzle be two and be threaded in respectively in the described first eccentric delivery port and the second eccentric delivery port in, be provided with the first limited block on the rear end face of described cutting head housing.
Above-mentioned a kind of brill cuts the one drill bit, it is characterized in that: be provided with the second limited block that matches with described the first limited block on described the first position-limit mechanism, the quantity of the quantity of described the first limited block and described the second limited block is two, and two described the first limited blocks and the interlaced setting of two described the second limited blocks.
Above-mentioned a kind of brill cuts the one drill bit, it is characterized in that: the periphery around described water inlet on the described cutting head housing has one or more second row aquaporins.
Above-mentioned a kind of brill cuts the one drill bit, it is characterized in that: be provided with one or more second on the front end face of described cutting head housing and creep into cutter.
The utility model compared with prior art has the following advantages:
1, the utility model compact conformation, rationally novel in design, processing and fabricating is convenient.
2, integrated degree of the present utility model is high, can realize creeping into and the switching of cutting by waterpower cutting assembly laterally moving forward and backward in the drill bit housing, creep into function in the prior art and cutting function divides the drill bit that is arranged, equipment purchasing cost and use cost have been reduced, when construction, reduced the conveying operation of a cover drilling tool, shorten labour hour and labour cost, greatly improved the drainage efficient of coal-bed gas.
3, realization cost of the present utility model is low, and long service life in the use procedure, need not often maintenance and safeguards that maintenance and maintenance cost are low.
4, of the present utility model practical, result of use is good, and application value is high.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is the overall structure schematic diagram of the utility model embodiment 1.
Fig. 2 is the right view of Fig. 1.
Fig. 3 is the first structural representation that creeps into housing among the utility model embodiment 1.
Fig. 4 is the structural representation of gland among the utility model embodiment 1.
Fig. 5 is the A-A view of Fig. 4.
Fig. 6 is the structural representation of sliding sleeve among the utility model embodiment 1.
Fig. 7 is the left view of Fig. 6.
Fig. 8 is the overall structure schematic diagram of the utility model embodiment 2.
Fig. 9 is the right view of Fig. 8.
Figure 10 is the structural representation that the second drilling rod connects housing among the utility model embodiment 2.
Figure 11 is the B-B view of Figure 10.
Figure 12 is the longitudinal section of the utility model hydraulic spinning cutting head.
Figure 13 is the left view of Figure 12.
Figure 14 is the C-C view of Figure 12.
Figure 15 is the structural representation of the utility model positioning joint.
Figure 16 is the right view of Figure 15.
Figure 17 is the structural representation of the utility model nozzle.
Figure 18 is the use view of the utility model embodiment 1 drilling construction process.
Figure 19 is the use view of the utility model embodiment 1 cutting construction process.
Figure 20 is the use view of the utility model embodiment 2 drilling construction processes.
Figure 21 is the use view of the utility model embodiment 2 cutting construction processes.
Description of reference numerals:
1-first row aquaporin; 2-the first creeps into cutter; 3-drilling rod connecting thread;
4-hydraulic spinning cutting head; 4-1-cutting head housing; The eccentric delivery port of 4-2-first;
The eccentric delivery port of 4-3-second; 4-4-first limited block; 4-5-second row aquaporin;
4-6-water inlet; The 5-the first conduit; 6-swivel joint;
7-positioning joint; 7-1-second limited block; 8-1-ring-type spacing preiection;
8-2-rear end end face; 9-nozzle; 10-sliding sleeve;
10-1-cyclic convex edge; 10-2-first is through hole vertically; 11-current groove;
12-gland; 12-1-gland centre bore; 12-2-gland through hole;
13-the first creeps into housing; 13-1-first gathering sill;
The 14-the first drilling rod connects housing; The 15-the first feather key;
16-the first pad; 17-the second conduit; The 18-seal cover;
18-1-seal cover centre bore; 19-filter screen; 20-end cap;
The 20-1-end cap central bore; 21-second creeps into housing; The 22-sleeve pipe;
The 23-the second drilling rod connects housing; 23-1-annular projection;
24-sealing mat; The 25-the second gathering sill; The 26-the second feather key;
The 27-the second pad; 28-the second creeps into cutter.
The specific embodiment
As depicted in figs. 1 and 2, the utility model comprises the drill bit housing and is arranged on the interior waterpower cutting assembly of drill bit housing, described drill bit is realized creeping into and the switching of cutting by described waterpower cutting assembly laterally moving forward and backward in the drill bit housing, the front end arranged outside of described drill bit housing has first to creep into cutter 2, and the front end of described drill bit housing has the first row aquaporin 1 that is communicated with drill bit housing inner chamber; Described waterpower cutting assembly comprises the hydraulic spinning cutting head 4 that connects successively, the first conduit 5 and swivel joint 6, it is inner that described hydraulic spinning cutting head 4 is arranged on described drill bit housing front end, be positioned on the drill bit inner walls of described the first conduit 5 peripheries and be provided with the first position-limit mechanism that limits for backward shift position and position of rotation to described hydraulic spinning cutting head 4, be positioned at and be provided with on the drill bit inner walls at described the first position-limit mechanism rear for to the moving forward that the position limits and be used for forming with described waterpower cutting assembly the second position-limit mechanism of hermetically-sealed construction of described waterpower cutting assembly, the nozzle 9 for jet water course is installed on the described hydraulic spinning cutting head 4.
In conjunction with Fig. 6 and Fig. 7, in the present embodiment, the described swivel joint 6 outer sliding sleeves 10 that are set with, described sliding sleeve 10 outer walls are close to the setting of described drill bit inner walls, axially have the current groove 11 that multiple tracks is passed through from back to front for current on described sliding sleeve 10 outer walls or on the described drill bit inner walls, the front end of described sliding sleeve 10 is provided be used to the cyclic convex edge 10-1 that is against on described the second position-limit mechanism rear end end face, the rear end of described sliding sleeve 10 is connected with for the gland 12 that described swivel joint 6 is fixed in the described sliding sleeve 10, and the center of described gland 12 has the gland centre bore 12-1 that water supply stream passes through.Wherein, gland 12 is used for limiting the motion of described swivel joint 6 in sliding sleeve 10, namely prevents the utility model in the cutting construction process, and described swivel joint 6 is subject to the effect of power and rotates.During implementation, current groove 11 is opened on described sliding sleeve 10 outer walls; Described swivel joint 6 has adopted commercial high-speed high-pressure rotary joint, and the pressure of described high-speed high-pressure rotary joint is that 30Mpa～100Mpa, rotating speed are 800rpm～4000rpm.
As shown in Figure 1, in the present embodiment, described drill bit housing creeps into housing 13 and creeps into housing 13 back-connected the first drilling rods and be connected housing 14 two parts and consist of with first by first, a plurality of described first row aquaporins 1 and a plurality of described first creep into cutter 2 and evenly are arranged on the described first front end outside of creeping into housing 13, described the first position-limit mechanism is positioning joint 7 and is connected to described first and creeps on the inwall of housing 13, described the second position-limit mechanism consists of by being arranged on the described first rear end end face that creeps into the ring-type spacing preiection 8-1 on housing 13 inwalls, is provided with for the drilling rod connecting thread 3 that is connected with drill rod thread on the rear end inwall of described the first drilling rod connection housing 14.
In conjunction with Fig. 3, in the present embodiment, being positioned at first of described sliding sleeve 10 peripheries creeps into and axially has the first gathering sill 13-1 on housing 13 inwalls, radially have the first vertical through hole 10-2 on the described sliding sleeve 10, in the described first vertical through hole the first feather key 15 that matches with described the first gathering sill 13-1 is installed.Particularly, described the first feather key 15 is shaped as " L " shape.
As shown in Figure 1, in the present embodiment, described the first drilling rod connection housing 14 and described first creeps into housing 13 rear threads and is connected, and described the first drilling rod connection housing 14 and described first creeps into and is provided with the first pad 16 between the housing 13, and described the first pad 16 is rubber sheet gasket or red copper pad.The front end that described the first drilling rod connects housing 14 is threaded in described first, and to creep into the rear end of housing 13 inner, be provided with spring between the front end end face of described the first drilling rod connection housing 14 and the rear end end face of described gland 12, spring is used for playing the power-assisted effect when carrying out cutting construction, accelerates the second position-limit mechanism and described waterpower cutting assembly and forms hermetically-sealed construction.
In conjunction with Fig. 4 and Fig. 5, in the present embodiment, the periphery around described gland centre bore 12-1 on the described gland 12 has one or more gland through hole 12-2, makes things convenient for being affectedly bashful and dismounting of gland 12.
In conjunction with Figure 12, Figure 13, Figure 14 and Figure 17, in the present embodiment, described hydraulic spinning cutting head 4 comprises cutting head housing 4-1, described cutting head housing 4-1 rear end is provided with water inlet 4-6, the front portion of described cutting head housing 4-1 radially has the first eccentric delivery port 4-2 and the second eccentric delivery port 4-3, the described first eccentric delivery port 4-2 and the second eccentric delivery port 4-3 all are connected with described water inlet 4-6, the axis of the axis of the described first eccentric delivery port 4-2 and the second eccentric delivery port 4-3 is two parallel lines, be provided with internal thread in the described first eccentric delivery port 4-2 and in the described second eccentric delivery port 4-3, the quantity of described nozzle 9 be two and be threaded in respectively in the described first eccentric delivery port 4-2 and the second eccentric delivery port 4-3 in, be provided with the first limited block 4-4 on the rear end face of described cutting head housing 4-1.
In conjunction with Figure 15 and Figure 16, in the present embodiment, be provided with the second limited block 7-1 that matches with described the first limited block 4-4 on described the first position-limit mechanism, the quantity of the quantity of described the first limited block 4-4 and described the second limited block 7-1 is two, and two described the first limited block 4-4 and the interlaced setting of two described the second limited block 7-1.The upper periphery around described water inlet 4-6 of described cutting head housing 4-1 has one or more second row aquaporin-4s-5.Be provided with one or more second on the front end face of described cutting head housing 4-1 and creep into cutter 28.
In conjunction with Figure 18, in the present embodiment, in the utility model drilling construction process, drill bit integral body is advanced, be arranged on second on hydraulic spinning cutting head 4 front end faces and creep into the reaction force that cutter 28 is subject to coal seam or rock, make sliding sleeve 10, swivel joint 6, it is mobile backward that the first conduit 5 and hydraulic spinning cutting head 4 creep in the inner chamber of housing 13 integral body first, until that the front end face of hydraulic spinning cutting head 4 and first creeps into the front end face of housing 13 is concordant, two the first limited block 4-4 and two the second limited block 7-1 actings in conjunction, make backward mobile being restricted of hydraulic spinning cutting head 4, at this moment, flow to the water of drill bit, do not need very large pressure, most water first drilling rod of flowing through successively connects housing 14 inner chambers, the first drilling rod connects the cavity between housing 14 and gland 12 and the sliding sleeve 10, sliding sleeve 10 and the first cavity that creeps between the housing 13, the first conduit 5 and the first cavity that creeps between the housing 13, cavity between the first conduit 5 and the seal cover centre bore 8-1, cavity between the first conduit 5 and the positioning joint 7, cavity between positioning joint 7 and the hydraulic spinning cutting head 4, discharge through first row aquaporin 1 and second row aquaporin-4-5 again, play the deslagging effect; Another fraction water first drilling rod of flowing through successively connects the water inlet 4-6 that housing 14 inner chambers, gland centre bore 12-1, swivel joint 6 inner chambers, the first conduit 5 inner chambers are delivered to hydraulic spinning cutting head 4, discharge through the nozzle 9 that is installed in the nozzle 9 among the first eccentric delivery port 4-2 and be installed among the second eccentric delivery port 4-3 again, play the deslagging effect.
In conjunction with Figure 19, after drilling construction finishes, with high-pressure hydraulic pump be connected to the drilling rod that the first drilling rod is connected on the housing 14 and connect, at this moment, water under high pressure enters into the first drilling rod and connects housing 14 inner chambers, because the pressure impetus of water under high pressure, so that sliding sleeve 10, swivel joint 6, the first conduit 5 and hydraulic spinning cutting head 4 creep into first that integral body moves forward in the inner chamber of housing 13, be against and be arranged on first and creep on the rear end end face of the ring-type spacing preiection 8-1 on housing 13 inwalls and form hermetically-sealed construction until be arranged on the front end face of the cyclic convex edge 10-1 of sliding sleeve 10 front ends, the front end of hydraulic spinning cutting head 4 has reached first and has crept into the outer and nozzle 9 of housing 13 and expose, at this moment, whole water under high pressures first drilling rod of flowing through successively connects housing 14 inner chambers, gland centre bore 12-1, swivel joint 6 inner chambers, the first conduit 5 inner chambers also have been expressed to the water inlet 4-6 of hydraulic spinning cutting head 4, the water under high pressure that enters into hydraulic spinning cutting head 4 is subject to the centrifugal action of the first eccentric delivery port 4-2 and the second eccentric delivery port 4-3, drive hydraulic spinning cutting head 4 autorotations, simultaneously, water under high pressure from be installed in the first eccentric delivery port 4-2 nozzle 9 and be installed in ejection in the nozzle 9 among the second eccentric delivery port 4-3, thereby coal body is realized dissection.
In conjunction with Fig. 8～Figure 11, present embodiment is as different from Example 1: the rear end of described swivel joint 6 is connected with the second conduit 17, the rear end of described the second conduit 17 is connected with seal cover 18, the center of described seal cover 18 has the seal cover centre bore 18-1 that water supply stream passes through, and the first half external diameter of described seal cover 18 can be against on the rear end end face of described the second position-limit mechanism greater than the front end end face of latter half of external diameter and described seal cover 18.The rear end of described seal cover 18 is provided with the filter screen 19 that covers on described seal cover 18 centre bores, and the rear end of described seal cover 18 is connected with the end cap 20 for fixing described filter screen 19, and the center of described end cap 20 has the end cap central bore 20-1 that water supply stream passes through; Filter screen 19 can filter out the impurity in the water, avoids in the long-term use procedure impurity in the water to cause the shutoff of hydraulic spinning cutting head 4.Described end cap 20 is threaded with the rear end of described seal cover 18.Described drill bit housing creeps into housing 21 by second, creep into housing 21 back-connected sleeve pipes 22 and be connected housing 23 3 parts formation with sleeve pipe 22 back-connected the second drilling rods with second, a plurality of described first row aquaporins 1 and a plurality of described first creep into cutter 2 and evenly are arranged on the described second front end outside of creeping into housing 21, described the first position-limit mechanism is positioning joint 7 and is connected to described second and creeps on the inwall of housing 21, described the second position-limit mechanism is made of the rear end end face 8-2 of the described sleeve pipe 22 that extend into described the second drilling rod connection housing 23 inside, described seal cover 18 is arranged on described the second drilling rod and connects in the housing 23, is provided with for the drilling rod connecting thread 3 that is connected with drill rod thread on the rear end inwall of described the second drilling rod connection housing 23.Be provided with sealed groove on the rear end end face 8-2 of described sleeve pipe 22, be provided with the sealing mat 24 between the rear end end face 8-2 of the front end end face of described seal cover 18 and described sleeve pipe 22 in the described sealed groove.The second drilling rod that is positioned at described seal cover 18 peripheries connects on housing 23 inwalls and axially has multiple tracks the second gathering sill 25, radially have the second vertical through hole on the described seal cover 18, the second feather key 26 that matches arbitrarily in described the second gathering sill 25 of multiple tracks is installed in the described second vertical through hole.Described sleeve pipe 22 and described second creeps into housing 21 rear threads and is connected, and described the second drilling rod connects housing 23 and is connected with described sleeve pipe 22 rear threads, is provided with the second pad 27 between described the second drilling rod connection housing 23 and the described sleeve pipe 22.Be provided with annular projection 23-1 on described the second drilling rod connection housing 23 rear inside wall, be provided with spring between the rear end end face of described annular projection 23-1 and described end cap 20.All the other structures are all identical with embodiment 1.
In conjunction with Figure 20, in the present embodiment, in the utility model drilling construction process, drill bit integral body is advanced, be arranged on second on hydraulic spinning cutting head 4 front end faces and creep into the reaction force that cutter 28 is subject to coal seam or rock, make seal cover 18, the second conduit 17, swivel joint 6, the first conduit 5 is connected with the hydraulic spinning cutting head at the second drilling rod connection housing 23, it is mobile backward that sleeve pipe 22 and second creeps in the inner chamber of housing 21 integral body, until that the front end face of hydraulic spinning cutting head 4 and second creeps into the front end face of housing 21 is concordant, two the first limited block 4-4 and two the second limited block 7-1 actings in conjunction, make backward mobile being restricted of hydraulic spinning cutting head 4, at this moment, flow to the water of drill bit, do not need very large pressure, most water second drilling rod of flowing through successively connects housing 23 inner chambers, end cap 20 is connected the cavity between the housing 23 with the second drilling rod, seal cover 18 is connected the cavity between the housing 23 with the second drilling rod, the second conduit 17 is connected the cavity between the housing 23 with the second drilling rod, cavity between the second conduit 17 and the sleeve pipe 22, cavity between swivel joint 6 and the sleeve pipe 22, cavity between the first conduit 5 and the sleeve pipe 22, the first conduit 5 and the second cavity that creeps between the housing 21, cavity between the first conduit 5 and the positioning joint 7, cavity between positioning joint 7 and the hydraulic spinning cutting head 4, discharge through first row aquaporin 1 and second row aquaporin-4-5 again, play the deslagging effect; Another fraction water second drilling rod of flowing through successively connects the water inlet 4-6 that housing 23 inner chambers, end cap central bore 20-1, filter screen 19, seal cover centre bore 18-1, the second conduit 17 inner chambers, swivel joint 6 inner chambers, the first conduit 5 inner chambers are delivered to hydraulic spinning cutting head 4, discharge through the nozzle 9 that is installed in the nozzle 9 among the first eccentric delivery port 4-2 and be installed among the second eccentric delivery port 4-3 again, play the deslagging effect.
In conjunction with Figure 21, after drilling construction finishes, with high-pressure hydraulic pump be connected to the drilling rod that the second drilling rod is connected on the housing 23 and connect, at this moment, water under high pressure enters into the second drilling rod and connects housing 23 inner chambers, because the pressure impetus of water under high pressure, so that seal cover 18, the second conduit 17, swivel joint 6, the first conduit 5 is connected with the hydraulic spinning cutting head at the second drilling rod connection housing 23, sleeve pipe 22 and second creeps into that integral body moves forward in the inner chamber of housing 21, until the front end end face of seal cover 18 is against the upper hermetically-sealed construction that forms of the rear end end face 8-2 of described sleeve pipe 22, the front end of hydraulic spinning cutting head 4 has reached second and has crept into the outer and nozzle 9 of housing 21 and expose, at this moment, whole water under high pressures second drilling rod of flowing through successively connects housing 23 inner chambers, end cap central bore 20-1, filter screen 19, seal cover centre bore 18-1, the second conduit 17 inner chambers, swivel joint 6 inner chambers, the first conduit 5 inner chambers also have been expressed to the water inlet 4-6 of hydraulic spinning cutting head 4, the water under high pressure that enters into hydraulic spinning cutting head 4 is subject to the centrifugal action of the first eccentric delivery port 4-2 and the second eccentric delivery port 4-3, drive hydraulic spinning cutting head 4 autorotations, simultaneously, water under high pressure from be installed in the first eccentric delivery port 4-2 nozzle 9 and be installed in ejection in the nozzle 9 among the second eccentric delivery port 4-3, thereby coal body is realized dissection.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; every any simple modification, change and equivalent structure of above embodiment being done according to the utility model technical spirit changes, and all still belongs in the protection domain of technical solutions of the utility model.
Claims (20)
1. a brill cuts the one drill bit, it is characterized in that: comprise the drill bit housing and be arranged on the interior waterpower cutting assembly of drill bit housing, described drill bit is realized creeping into and the switching of cutting by described waterpower cutting assembly laterally moving forward and backward in the drill bit housing, the front end arranged outside of described drill bit housing has first to creep into cutter (2), and the front end of described drill bit housing has the first row aquaporin (1) that is communicated with drill bit housing inner chamber; Described waterpower cutting assembly comprises the hydraulic spinning cutting head (4) that connects successively, the first conduit (5) and swivel joint (6), it is inner that described hydraulic spinning cutting head (4) is arranged on described drill bit housing front end, be positioned on the peripheral drill bit inner walls of described the first conduit (5) and be provided with the first position-limit mechanism that limits for backward shift position and position of rotation to described hydraulic spinning cutting head (4), be positioned at and be provided with on the drill bit inner walls at described the first position-limit mechanism rear for to the moving forward that the position limits and be used for forming with described waterpower cutting assembly the second position-limit mechanism of hermetically-sealed construction of described waterpower cutting assembly, the nozzle (9) for jet water course is installed on the described hydraulic spinning cutting head (4).
2. cut the one drill bit according to a kind of brill claimed in claim 1, it is characterized in that: the outer sliding sleeve (10) that is set with of described swivel joint (6), described sliding sleeve (10) outer wall is close to the setting of described drill bit inner walls, axially have the current groove (11) that multiple tracks is passed through from back to front for current on described sliding sleeve (10) outer wall or on the described drill bit inner walls, the front end of described sliding sleeve (10) is provided be used to the cyclic convex edge (10-1) that is against on described the second position-limit mechanism rear end end face, the rear end of described sliding sleeve (10) is connected with for the gland (12) that described swivel joint (6) is fixed in the described sliding sleeve (10), and the center of described gland (12) has the gland centre bore (12-1) that water supply stream passes through.
3. cut the one drill bit according to a kind of brill claimed in claim 2, it is characterized in that: described drill bit housing creeps into housing (13) and creeps into back-connected the first drilling rod of housing (13) and be connected housing (14) two parts and consist of with first by first, a plurality of described first row aquaporins (1) and a plurality of described first creep into cutter (2) and evenly are arranged on the described first front end outside of creeping into housing (13), described the first position-limit mechanism is positioning joint (7) and is connected to described first and creeps on the inwall of housing (13), described the second position-limit mechanism consists of by being arranged on the described first rear end end face that creeps into the ring-type spacing preiection (8-1) on housing (13) inwall, is provided with for the drilling rod connecting thread (3) that is connected with drill rod thread on the rear end inwall of described the first drilling rod connection housing (14).
4. cut the one drill bit according to a kind of brill claimed in claim 3, it is characterized in that: be positioned at peripheral first the creeping on housing (13) inwall and axially have the first gathering sill (13-1) of described sliding sleeve (10), radially have the first vertical through hole (10-2) on the described sliding sleeve (10), in the described first vertical through hole the first feather key (15) that matches with described the first gathering sill (13-1) is installed.
5. cut the one drill bit according to a kind of brill claimed in claim 4, it is characterized in that: described the first feather key (15) be shaped as " L " shape.
6. cut the one drill bit according to a kind of brill claimed in claim 3, it is characterized in that: described the first drilling rod connection housing (14) and described first creeps into housing (13) rear threads and is connected, and described the first drilling rod connection housing (14) and described first creeps into and is provided with the first pad (16) between the housing (13).
7. cut the one drill bit according to a kind of brill claimed in claim 6, it is characterized in that: the front end that described the first drilling rod connects housing (14) is threaded in described first, and to creep into the rear end of housing (13) inner, and described the first drilling rod connects between the rear end end face of the front end end face of housing (14) and described gland (12) and is provided with spring.
8. cut the one drill bit according to a kind of brill claimed in claim 3, it is characterized in that: the upper periphery around described gland centre bore (12-1) of described gland (12) has one or more gland through holes (12-2).
9. cut the one drill bit according to a kind of brill claimed in claim 1, it is characterized in that: the rear end of described swivel joint (6) is connected with the second conduit (17), the rear end of described the second conduit (17) is connected with seal cover (18), the center of described seal cover (18) has the seal cover centre bore (18-1) that water supply stream passes through, and the first half external diameter of described seal cover (18) can be against on the rear end end face of described the second position-limit mechanism greater than the front end end face of latter half of external diameter and described seal cover (18).
10. cut the one drill bit according to a kind of brill claimed in claim 9, it is characterized in that: the rear end of described seal cover (18) is provided with the filter screen (19) that covers on described seal cover (18) centre bore, the rear end of described seal cover (18) is connected with the end cap (20) for fixing described filter screen (19), and the center of described end cap (20) has the end cap central bore (20-1) that water supply stream passes through.
11. cut the one drill bit according to a kind of brill claimed in claim 10, it is characterized in that: described end cap (20) is threaded with the rear end of described seal cover (18).
12. cut the one drill bit according to a kind of brill claimed in claim 9, it is characterized in that: described drill bit housing creeps into housing (21) by second, creep into the back-connected sleeve pipe of housing (21) (22) and be connected housing (23) three parts formation with back-connected the second drilling rod of sleeve pipe (22) with second, a plurality of described first row aquaporins (1) and a plurality of described first creep into cutter (2) and evenly are arranged on the described second front end outside of creeping into housing (21), described the first position-limit mechanism is positioning joint (7) and is connected to described second and creeps on the inwall of housing (21), described the second position-limit mechanism is made of the rear end end face (8-2) that extend into the inner described sleeve pipe (22) of described the second drilling rod connection housing (23), described seal cover (18) is arranged on described the second drilling rod and connects in the housing (23), is provided with for the drilling rod connecting thread (3) that is connected with drill rod thread on the rear end inwall of described the second drilling rod connection housing (23).
13. cut the one drill bit according to the described a kind of brill of claim 12, it is characterized in that: be provided with sealed groove on the rear end end face (8-2) of described sleeve pipe (22), be provided with the sealing mat (24) between the rear end end face (8-2) of the front end end face that is positioned at described seal cover (18) and described sleeve pipe (22) in the described sealed groove.
14. cut the one drill bit according to the described a kind of brill of claim 12, it is characterized in that: be positioned at the second peripheral drilling rod of described seal cover (18) and connect on housing (23) inwall and axially have multiple tracks the second gathering sill (25), radially have the second vertical through hole on the described seal cover (18), the second feather key (26) that matches arbitrarily in described the second gathering sill of multiple tracks (25) is installed in the described second vertical through hole.
15. cut the one drill bit according to the described a kind of brill of claim 12, it is characterized in that: described sleeve pipe (22) and described second creeps into housing (21) rear threads and is connected, described the second drilling rod connects housing (23) and is connected with described sleeve pipe (22) rear threads, is provided with the second pad (27) between described the second drilling rod connection housing (23) and the described sleeve pipe (22).
16. cut the one drill bit according to a kind of brill claimed in claim 10, it is characterized in that: be provided with annular projection (23-1) on described the second drilling rod connection housing (23) rear inside wall, be provided with spring between the rear end end face of described annular projection (23-1) and described end cap (20).
17. cut the one drill bit according to the described a kind of brill of arbitrary claim in the claim 3～16, it is characterized in that: described hydraulic spinning cutting head (4) comprises cutting head housing (4-1), described cutting head housing (4-1) rear end is provided with water inlet (4-6), the front portion of described cutting head housing (4-1) radially has the first eccentric delivery port (4-2) and the second eccentric delivery port (4-3), the described first eccentric delivery port (4-2) and the second eccentric delivery port (4-3) all are connected with described water inlet (4-6), the axis of the axis of the described first eccentric delivery port (4-2) and the second eccentric delivery port (4-3) is two parallel lines, be provided with internal thread in the described first eccentric delivery port (4-2) and in the described second eccentric delivery port (4-3), the quantity of described nozzle (9) be two and be threaded in respectively in the described first eccentric delivery port (4-2) and the second eccentric delivery port (4-3) in, be provided with the first limited block (4-4) on the rear end face of described cutting head housing (4-1).
18. cut the one drill bit according to the described a kind of brill of claim 17, it is characterized in that: be provided with the second limited block (7-1) that matches with described the first limited block (4-4) on described the first position-limit mechanism, the quantity of the quantity of described the first limited block (4-4) and described the second limited block (7-1) is two, and two described the first limited blocks (4-4) and the interlaced setting of two described the second limited blocks (7-1).
19. cut the one drill bit according to the described a kind of brill of arbitrary claim in the claim 1～16, it is characterized in that: the upper periphery around described water inlet (4-6) of described cutting head housing (4-1) has one or more second row aquaporins (4-5).
20. cut the one drill bit according to the described a kind of brill of arbitrary claim in the claim 1～16, it is characterized in that: be provided with one or more second on the front end face of described cutting head housing (4-1) and creep into cutter (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220505316 CN202788619U (en) | 2012-09-28 | 2012-09-28 | Integral drill bit for drilling and cutting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220505316 CN202788619U (en) | 2012-09-28 | 2012-09-28 | Integral drill bit for drilling and cutting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202788619U true CN202788619U (en) | 2013-03-13 |
Family
ID=47815895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220505316 Withdrawn - After Issue CN202788619U (en) | 2012-09-28 | 2012-09-28 | Integral drill bit for drilling and cutting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202788619U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102877789A (en) * | 2012-09-28 | 2013-01-16 | 西安美尼矿山设备科技有限公司 | Drilling and cutting integrated drilling bit |
-
2012
- 2012-09-28 CN CN 201220505316 patent/CN202788619U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102877789A (en) * | 2012-09-28 | 2013-01-16 | 西安美尼矿山设备科技有限公司 | Drilling and cutting integrated drilling bit |
| CN102877789B (en) * | 2012-09-28 | 2015-06-10 | 西安美尼矿山设备科技有限公司 | Drilling and cutting integrated drilling bit |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130313 Effective date of abandoning: 20150610 |
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| RGAV | Abandon patent right to avoid regrant |