CN203856398U - Self-propelled drilling device - Google Patents
Self-propelled drilling device Download PDFInfo
- Publication number
- CN203856398U CN203856398U CN201420232876.4U CN201420232876U CN203856398U CN 203856398 U CN203856398 U CN 203856398U CN 201420232876 U CN201420232876 U CN 201420232876U CN 203856398 U CN203856398 U CN 203856398U
- Authority
- CN
- China
- Prior art keywords
- distribution
- duct
- piston
- inner tube
- outer tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 31
- 230000007246 mechanism Effects 0.000 claims abstract description 25
- 239000011435 rock Substances 0.000 claims description 44
- 230000005540 biological transmission Effects 0.000 claims description 39
- 230000003116 impacting effect Effects 0.000 claims description 23
- 239000000428 dust Substances 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 12
- 230000001629 suppression Effects 0.000 claims description 12
- 239000000498 cooling water Substances 0.000 claims description 11
- 230000008878 coupling Effects 0.000 claims description 10
- 238000010168 coupling process Methods 0.000 claims description 10
- 238000005859 coupling reaction Methods 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 10
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 208000004141 microcephaly Diseases 0.000 claims description 4
- 238000009423 ventilation Methods 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 239000000837 restrainer Substances 0.000 abstract 1
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 230000001914 calming effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Abstract
The utility model relates to a self-propelled drilling device and belongs to the technical field of drilling. The self-propelled drilling device comprises a restrainer, an impact rotation mechanism and a drill bit. A pawl on the device is utilized to allow the drilling device not to need additional axial pushing force during operation, the whole device is propelled to drill a hole by the counter force provided by the return stroke of the impact piston of an impact device, the relative backward displacement, caused by the forward impact stroke of the impact piston, of the drilling device is restrained by the pawl on the device, and the drilling device cannot move backwards. Drill bit rotation is achieved by a hollow shaft stepping motor. The gas distribution passage switching function of the drilling device is provided by an electromagnetic coil so as to control the working stroke of the impact piston. The self-propelled drilling device has the advantages that after a traditional drilling machine drills a pre-drilled hole as long as the device, the device can drill the hole in a self-propelled manner without traditional mechanisms outside the hole.
Description
Technical field
The utility model relates to a kind of self-propelled rock drill aperture apparatus, is particularly useful for comprising the relevant operation that needs to carry out rock drilling boring in ore underground mining and other geotechnical engineering construction, belongs to rock drilling boring technical field.
Background technology
When ore underground mining and other geotechnical engineering excavation construction, the Drilling that adopts hammer drill to carry out loaded hole is common work operations.At present, during tradition rock drilling boring, for non-lower to nearly upright opening, the end thrust that drill bit and foot of hole keep in touch comes from boring outside mechanical thrust, the thrust of calming the anger and manpower etc., even if existing hidden hole drilling, Qi Kongnei mechanism also only provides the impact force of drill bit, and maintain the end thrust Reng Youkongwai mechanism of continuous contact at the bottom of drill bit and hole, provide, these require to make on the one hand hammer drill equipment comparatively complicated, conduct oneself with dignity larger, material consumption is more, and cost is higher, and operation labor intensity is larger; On the other hand, in the situation that rock drilling boring work plane is comparatively narrow, conventionally because the volume of hammer drill Kong Wai mechanism is larger, and hammer drill only can single hole Drilling (even when bench type hammer drill or jumbo also only may provide several hole Drilling, Qie Qikongwai mechanism is more huge, handles complicated), thereby in most cases, rock penetration performance is lower, and the time is longer, has occupied the most of the time of ground excavation work cycle; And calming the anger power is provided in the situation that, during its operation calm the anger emptying and mechanical shock noise normal over 100 decibels.
Utility model content
The technical problems to be solved in the utility model is: the utility model provides a kind of self-propelled rock drill aperture apparatus, has solved when traditional rock drill aperture apparatus is normally worked and has needed mechanical device outside hole that the end thrust problem that Drilling advances is automatically provided.
Technical solutions of the utility model are: a kind of self-propelled rock drill aperture apparatus, comprises constrainer part, impacting swing mechanism part, drill bit 22, described constrainer partly comprises constrainer 1, ratchet 2, detent recess 3, goring push spring 4, goring push spring installing hole 5, main stay cord 6, minute stay cord 7, main stay cord duct 8, minute stay cord duct 9, described impacting swing mechanism partly comprises cylinder block 10, piston 11, backhaul spacing ring 12, hollow shaft stepper motor 13, shaft coupling 14, backward stroke of the piston gas exhausting valve 15, valve body exhaust duct 16, cylinder shell exhaust duct 17, electromagnetic coil 18, returning spring 19, impact power transmission part 20, front-end case 21, connecting pin 23, distribution inner tube 24, distribution outer tube 25, distribution duct I 26, distribution duct II 27, distribution duct III 28, distribution duct IV 29, distribution duct V 30, distribution duct VI 31, distribution duct VII 32, distribution duct VIII 33, distribution duct IX 34, cable through-hole 35, cable 36, dust suppression cooling water channel 37, electromagnetic coil arranges chamber 39, distribution duct X 40, hollow shaft stepper motor arranges chamber 41, distribution duct XI 42,
Described ratchet 2 is arranged in the detent recess 3 in constrainer 1 periphery with revolute pair connected mode; Goring push spring installing hole 5 is dug in detent recess 3, and the goring push spring 4 that is placed in goring push spring installing hole 5 divides with the hole wall of boring 38 the pawl end of ratchet 2 fully to contact; Divide stay cord 7 one end to be connected with ratchet 2, the other end is connected with the main stay cord 6 that is arranged in main stay cord duct 8 for making ratchet 2 depart from the hole wall of boring 38 through minute stay cord duct 9 in constrainer 1;
In described cylinder block 10, be from left to right provided with successively piston 11, backhaul spacing ring 12, hollow shaft stepper motor 13, backward stroke of the piston gas exhausting valve 15, electromagnetic coil 18, piston 11, backhaul spacing ring 12, hollow shaft stepper motor 13, backward stroke of the piston gas exhausting valve 15, electromagnetic coil 18 are all positioned on central axis through hole, and distribution inner tube 24 and distribution outer tube 25 are placed on cylinder block 10 central axis;
Piston 11 is connected and is used for guaranteeing tightness contact with sliding pair with distribution outer tube 25; Backhaul spacing ring 12 is tightly embedded on cylinder block 10 inwalls or with cylinder block 10 and is processed as one; Hollow shaft stepper motor 13 is connected with distribution outer tube 25 by shaft coupling 14; Hole in backward stroke of the piston gas exhausting valve 15 and distribution inner tube 24 are closely fixing, backward stroke of the piston gas exhausting valve 15 peripheries and cylinder block 10 inwall tightness sliding-contacts, on backward stroke of the piston gas exhausting valve 15, be provided with valve body exhaust duct 16, valve body exhaust duct 16 Tong Gang chambeies, one end, valve body exhaust duct 16 other ends are logical is arranged at the cylinder shell exhaust duct 17 on cylinder shell; Electromagnetic coil 18 centers arrange returning spring 19, and under returning spring 19 recoil states, the left side that is placed in the distribution inner tube 24 right part fractions insertion electromagnetic coils 18 in distribution outer tube 25 can be subject to the suction of electromagnetic coil 18 for guaranteeing distribution inner tube 24;
Impact power transmission part 20 and be arranged at cylinder block 10 left parts in order to the impact force to connecting drill bit transmission piston 11 thereon;
Distribution duct I 26 is positioned at constrainer 1, its right-hand member leads to the compressed air that constrainer 1 afterbody provides for connecing outside, left end leads to arranging in chamber 39 of electromagnetic coil 18, and arranging in chamber 39 in electromagnetic coil 18 leaves suitable space for entering for compressed air the inlet channel that is used as described self-propelled rock drill aperture apparatus;
Open distribution duct II in distribution inner tube 24 27 and open distribution duct III 28 on distribution outer tube 25 be radially to wear perforate and centered by axis direction alignment so that distribution inner tube 24 can make two pairs of ducts alignment during relative sliding on distribution outer tube 25 axis, to form the inlet channel of piston 11 strokes, distribution duct II 27, the position of distribution duct III 28 in distribution inner tube 24 and on distribution outer tube 25 all the backhaul spacing ring 12 in the left side of the right side in piston 11 and hollow shaft stepper motor 13 are other;
Distribution duct IV 29 is arranged at impacts in power transmission part 20 right side major part sections, distribution duct IV 29 is corner form, the cavity of one end ventilation cylinder body 10, the distribution duct V 30 on other end wildcard gas outer tube 25 is as the stroke exhaust passage of piston 11, also as the backhaul inlet channel of piston 11;
Distribution duct V 30 and distribution duct VI 31 lay respectively in distribution outer tube 25 and distribution inner tube 24, distribution duct V 30 is fixing over against communicating with distribution duct IV 29, when distribution inner tube 24 is done axis slip in distribution outer tube 25, realize distribution duct VI 31 and distribution duct V 30 communicate and from, the inlet channel while usining as piston 11 backhaul;
Distribution duct VII 32 is arranged in solid section of distribution inner tube 24 left parts, it is a T shape duct, its one end port is in distribution inner tube 24 left parts, and communicate with the right side that is arranged at the distribution duct X 40 of distribution outer tube 25 left parts, other end port is on solid section of sidewall of distribution inner tube 24, while doing axis direction slip along with distribution inner tube 24 in distribution outer tube 25, to realize that through hole on the sidewall of distribution inner tube 24 communicates with distribution duct V 30 on distribution outer tube 25 and from, the exhaust passage while usining as piston 11 stroke;
Distribution duct VIII 33 is arranged at impacts in power transmission part 20 left side microcephaly's sections, and its one end port, in left end, communicates with the distribution duct IX 34 being arranged in drill bit 22, and the other end communicates with the left side of distribution duct X 40;
In described self-propelled rock drill aperture apparatus, being provided with two connecting pins 23 can only make axis relative sliding and can not do relative swaying with distribution outer tube 25 for guaranteeing distribution inner tube 24, connecting pin 23 is fixedly connected with for impacting power transmission part 20, distribution outer tube 25 and distribution inner tube 24 and is connected in series with screw thread with impact power transmission part 20, distribution inner tube 24 is in axial sliding thereon, and distribution outer tube 25 is fixed with impact power transmission part 20 close contacts;
The constrainer 1 of constrainer part all can be and is threaded with front-end case 21 with cylinder block 10 and the cylinder block 10 of impacting swing mechanism part;
Cable 36 is used to electromagnetic coil 18 and hollow shaft stepper motor 13 that power supply is provided by being arranged at the cable through-hole 35 of constrainer 1.
Dust suppression cooling water channel 37 is housed for avoiding Drilling dry hole in the housing of described self-propelled rock drill aperture apparatus, dust suppression cooling water channel 37 extends through the front-end case 21 of impacting swing mechanism part always from constrainer part afterbody right side.
Described distribution inner tube 24 materials are ferrimagnet.
The course of work of the present utility model is:
1. first with traditional shallow bore hole hammer drill, designing position Drilling prebored hole, the prebored hole degree of depth should be equal to or greater than the length of self-propelled rock drill aperture apparatus;
2. self-propelled rock drill aperture apparatus is placed in prebored hole, connects that power is calmed the anger, water and external power source;
3. when being controlled by electromagnetic coil 18 energization excitation of external control power supply, distribution inner tube 24 under electromagnetic force to electromagnetic coil 18 core in-pipes, and compression returning spring 19 wherein, distribution duct II 27 on now distribution inner tube 24 and distribution outer tube 25 and distribution duct III 28 central alignments, distribution duct V 31 in distribution inner tube 24 departs from the distribution duct VI 30 on distribution outer tube 25, be arranged at distribution duct VI 30 central alignments on T shape distribution duct VII 32 in solid section of distribution inner tube 24 left parts and distribution outer tube 25, the backward stroke of the piston gas exhausting valve 15 being fixed in distribution inner tube 24 moves with distribution inner tube 24, valve body exhaust duct 16 on it and cylinder shell exhaust duct 17 from, closure piston backhaul exhaust passage, the distribution duct I 26 of compressed air in being arranged at constrainer 1, electromagnetic coil 18 chamber 39 is set, the core pipe of electromagnetic coil 18, distribution inner tube 24, distribution duct II 27 and distribution duct III 28 enter in the right cylinder of piston 11, promoting piston 11 moves to the left, hit and impact power transmission part 20, and hitting power is delivered to the bottom of drill bit 22 and boring 38 by impacting power transmission part 20, in this process, the air in former piston 11 left sides is by distribution duct IV 29, distribution duct V 30, distribution duct VII 32, distribution duct X 40, distribution duct VIII 33 and distribution duct IX 34 are discharged in boring, complete a stroke, and rock dust and water are blown out to boring 38,
4. electromagnetic coil 18 power-off, distribution inner tube 24 is motion to the left under the resilient force of returning spring 19, distribution duct II 27 on distribution inner tube 24 and distribution outer tube 25 and distribution duct III 28 from, closure piston 11 stroke air intake ducts, valve body exhaust duct 16 on backward stroke of the piston gas exhausting valve 15 and cylinder shell exhaust duct 17 relative UNICOMs, open backward stroke of the piston exhaust passage, distribution duct V 31 in distribution inner tube 24 and distribution duct VI 30 relative UNICOMs on distribution outer tube 25, open the backhaul inlet channel of piston 11, be arranged at distribution duct VI 30 on T shape distribution duct VII 32 in solid section of distribution inner tube 24 right parts and distribution outer tube 25 from, closure piston 11 stroke exhaust passages, now, the distribution duct I 26 of compressed air in being arranged at constrainer 1, electromagnetic coil 18 chamber 39 is set, the core pipe of electromagnetic coil 18, distribution inner tube 24, distribution duct V 31 and distribution duct VI 30 and distribution duct IV 29 enter in the left hand cylinder of piston 11, promoting piston 11 moves to the right, the air on former piston 11 right sides is by the mesopore of backhaul spacing ring 12, hollow shaft stepper motor 13 arranges chamber 41, distribution duct XI 42, valve body exhaust duct 16 on backward stroke of the piston gas exhausting valve 15 and cylinder shell exhaust duct 17 are discharged, complete a backhaul,
5. by above-mentioned 3 and 4, device completes one and impacts after operation cycle, the 13 energising work of hollow shaft stepper motor, by shaft coupling 14, drive distribution outer tube 25, and drive impact power transmission part 20 and drill bit 22 to rotate to an angle by connecting pin 23, prepare the next operation cycle of impacting, meanwhile also drive distribution inner tube 24 to synchronize and rotate with it, to guarantee that each on distribution inner tube 24 and distribution outer tube 25 remains on former relative position to distribution duct.
Through above 3,4,5, device completes a complete impact rotating operation cycle.The course of work of the constrainer 1 in above-mentioned impact operation cycle on device is:
6. when device is put into prebored hole, ratchet 2 in constrainer 1 is under the effect of goring push spring 4, its pawl end is close to the hole wall of boring 38, when piston 11 is operated in stroke during the period, when compressed air promotion piston 11 moves to the left, also round about (right side, boring 38 outer), to cylinder block 10 and the whole device application of force except piston 11, now the pawl end due to ratchet 2 provides unidirectional resistance to push away effect of contraction with the hole wall of boring 38, and whole device can not moved outside boring;
7. when piston 11 is operated in backhaul during the period, when compressed air promotion piston 11 moves to the right, also round about (in left side, boring) is to cylinder block 10 and the whole device application of force except piston 11, now due to the without hindrance effect of contraction that pushes away of ratchet 2, make whole device to boring 38 interior movements, drill bit 22 is always kept in touch with the bottom of boring 38.
By some impact rotating operation cycle, whole device constantly advances to direction reach at the bottom of hole, realizes the self-propelled rock drilling drilling function without outside other thrust.
8. after boring end-of-job, by the pawl end that stay cord 7 and main stay cord 6 make ratchet 2 that divides being connected on each ratchet 2, depart from the hole wall of boring 38, and whole device is drawn and draws off boring 38.
In addition, it is adjustable that electromagnetic coil 18 energization excitation frequencies and hollow shaft stepper motor 13 rotate step pitch, thereby the anglec of rotation in the time of can changing the frequency of impact of 22 pairs of rocks of drill bit and an operation cycle according to different on-the-spot ROCK CONDITIONS, this function can adopt prior art to complete.
The critical piece material of device can be selected: distribution inner tube 24 employing high permeability materials (or its nearly electromagnetic coil 18 end suitable length sections employing high permeability materials, remainder adopts general stainless steel); Distribution outer tube 25 adopts general stainless steel; The thrust moving to direction at the bottom of hole for increasing impact dynamics and drilling tool, piston 11 is except adopting the material of larger strength and stiffness impacting end, and portion's edge is filled out the material (as lead etc.) with larger specific gravity within it, to increase its quality; The material of ratchet 2 can adopt carbide alloy; Divide stay cord 7 and main stay cord 6 to adopt stainless steel twisted wires; Impact the material that power transmission part 20 adopts larger strength and stiffness; Drill bit 22 can be conventional drill material.In addition, electromagnetic coil 18 and hollow shaft stepper motor 13 all need waterproof sealing.
Except introducing the pipeline of required drive, whole rock drill aperture apparatus is all placed in big gun hole, and during blasthole drilling cutter, required impact force, revolute function and end thrust provides by the mechanism being placed in boring.
As shown in Figure 1, 2, 3, a plurality of ratchets 2 are installed in the detent recess 3 in constrainer 1 periphery with revolute pair connected mode; Goring push spring 4 is installed in goring push spring installing hole 5, ratchet 2 is axially no less than two groups along constrainer 1, every group is upwards arranged symmetrically with more than 3 in constrainer footpath, in its group number and group, number is determined according to the fragmentation of rock or cranny development degree, more broken or the crack of rock is compared with under developmental condition, in group number and group, number can be many, otherwise can lack.For being easy to, whole device draws off the big gun hole that Drilling is good, each ratchet 2 is connected with minute stay cord 7, divide the other end of stay cord 7 to be connected with the main stay cord 6 that is arranged in main stay cord duct 8 through minute stay cord duct 9 in constrainer 1, for making ratchet 2 depart from the hole wall of boring 38;
As shown in Fig. 2,4,5,6,7, valve actuating mechanism adopts center gas distribution channels mode, coaxial distribution inner tube 24 and distribution outer tube 25 are set on the central axis of cylinder block 10, piston 11 is socketed on distribution outer tube 25 by mesopore, on distribution inner tube 24 and distribution outer tube 25, be positioned at the axial both sides of piston 11 and have stroke air inlet (distribution duct II 27 and distribution duct III 28), backhaul air inlet (distribution duct V 30 and distribution duct VI 31), and also have stroke vent (distribution duct VII 32) in the leading section entity part of distribution inner tube 24; Between distribution inner tube 24 and distribution outer tube 25, between distribution outer tube 25 and piston 11, be tightness contact, and can be free to slide in the axial direction, to reach hole distribution to promote the object of piston 11 drill hammers; For guaranteeing backward stroke of the piston air inlet and stroke exhaust, on impact power transmission part 20, also have gas distribution channels (distribution duct IV 29); On the right side of piston 11, be also provided with piston 11 backhaul gas exhausting valves 15, on it, have vent (valve body exhaust duct 16), and be equipped with backhaul vent (distribution duct XI 42) and (the cylinder shell exhaust duct 17) in cylinder block 10, jointly provide piston 11 backhaul exhaust passages; Electromagnetic coil arranges in chamber 39 electromagnetic coil 18 of installing distribution inner tube 24 pulling force that endwisely slips to the right in distribution outer tube 25 is provided, the returning spring 19 at electromagnetic coil 18 centers provides distribution inner tube 24 thrust that endwisely slips left in distribution outer tube 25, backward stroke of the piston gas exhausting valve 15 is fixed in distribution inner tube 24, is synchronized with the movement with distribution inner tube 24.The slew gear of drill bit is comprised of distribution outer tube 25, impact power transmission part 20, connecting pin 23 and hollow shaft stepper motor 13.
During operation, for the many big guns hole shallow bore hole rock drilling of meeting head on during tunnelling in underground mining operation, first with traditional hammer drill, designing position Drilling prebored hole, its degree of depth should be equal to or greater than the length of self-propelled rock drill aperture apparatus, again self-propelled rock drill aperture apparatus is placed in prebored hole, connects that power is calmed the anger, dust suppression temperature lowering water and power supply.After whole prebored holes in whole meet head on one driving circulation can disposable Drilling complete, more a plurality of self-propelled rock drill aperture apparatus are inserted in each prebored hole and worked simultaneously.Until self-propelled rock drill aperture apparatus, be advanced to after set depth; from boring, draw off before self-propelled rock drill aperture apparatus again; should first shut down; draw off, its unloading method is again: with a rigid bar of being longer than boring, one end is inserted and in boring, withstood self-propelled rock drill aperture apparatus afterbody; strain main stay cord 6 and minute stay cord 7 of ratchet 2 simultaneously; make the pawl end of ratchet 2 separated with the hole wall of boring 38, keep the tensioning state of stay cord, until self-propelled rock drill aperture apparatus is drawn off.
The beneficial effects of the utility model are: this device only needs with after the prebored hole suitable with this device length of the prior depth drilled of traditional hammer drill, without mechanism arrangement outside traditional hole, just can in hole, automatically advance and carry out rock drilling boring, simple in structure, cost is lower, can on narrower and small work plane, work by a plurality of devices simultaneously, greatly reduce the bore operation time, reduce operating personnel's labour intensity, also can greatly reduce working-noise simultaneously.
Accompanying drawing explanation
Fig. 1 is the utility model schematic appearance;
Fig. 2 is the utility model axial section schematic diagram;
Fig. 3 is the utility model constrainer cut-away section schematic diagram;
Fig. 4, Fig. 5, Fig. 6, Fig. 7 are impacting swing mechanism cut-away section schematic diagrames of the present utility model.
Each label in Fig. 1-7: 1-constrainer, 2-ratchet, 3-detent recess, 4-goring push spring, 5-goring push spring installing hole, the main stay cord of 6-, 7-divides stay cord, the main stay cord of 8-duct, 9-divides stay cord duct, 10-cylinder block, 11-piston, 12-backhaul spacing ring, 13-hollow shaft stepper motor, 14-shaft coupling, 15-backward stroke of the piston gas exhausting valve, 16-valve body exhaust duct, 17-cylinder shell exhaust duct, 18-electromagnetic coil, 19-returning spring, 20-impacts power transmission part, 21-front-end case, 22-drill bit, 23-connecting pin, 24-distribution inner tube, 25-distribution outer tube, 26-distribution duct I, 27-distribution duct II, 28-distribution duct III, 29-distribution duct IV, 30-distribution duct V, 31-distribution duct VI, 32-distribution duct VII, 33-distribution duct VIII, 34-distribution duct IX, 35-cable through-hole, 36-cable, 37-dust suppression cooling water channel, 38-boring, 39-electromagnetic coil arranges chamber, 40-distribution duct X, 41-hollow shaft stepper motor arranges chamber, 42-distribution duct XI.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Embodiment 1: as shown in Fig. 1-7, a kind of self-propelled rock drill aperture apparatus, comprises constrainer part, impacting swing mechanism part, drill bit 22, described constrainer partly comprises constrainer 1, ratchet 2, detent recess 3, goring push spring 4, goring push spring installing hole 5, main stay cord 6, minute stay cord 7, main stay cord duct 8, minute stay cord duct 9, described impacting swing mechanism partly comprises cylinder block 10, piston 11, backhaul spacing ring 12, hollow shaft stepper motor 13, shaft coupling 14, backward stroke of the piston gas exhausting valve 15, valve body exhaust duct 16, cylinder shell exhaust duct 17, electromagnetic coil 18, returning spring 19, impact power transmission part 20, front-end case 21, connecting pin 23, distribution inner tube 24, distribution outer tube 25, distribution duct I 26, distribution duct II 27, distribution duct III 28, distribution duct IV 29, distribution duct V 30, distribution duct VI 31, distribution duct VII 32, distribution duct VIII 33, distribution duct IX 34, cable through-hole 35, cable 36, dust suppression cooling water channel 37, electromagnetic coil arranges chamber 39, distribution duct X 40, hollow shaft stepper motor arranges chamber 41, distribution duct XI 42,
Described ratchet 2 is arranged in the detent recess 3 in constrainer 1 periphery with revolute pair connected mode; Goring push spring installing hole 5 is dug in detent recess 3, and the goring push spring 4 that is placed in goring push spring installing hole 5 divides with the hole wall of boring 38 the pawl end of ratchet 2 fully to contact; Divide stay cord 7 one end to be connected with ratchet 2, the other end is connected with the main stay cord 6 that is arranged in main stay cord duct 8 for making ratchet 2 depart from the hole wall of boring 38 through minute stay cord duct 9 in constrainer 1;
In described cylinder block 10, be from left to right provided with successively piston 11, backhaul spacing ring 12, hollow shaft stepper motor 13, backward stroke of the piston gas exhausting valve 15, electromagnetic coil 18, piston 11, backhaul spacing ring 12, hollow shaft stepper motor 13, backward stroke of the piston gas exhausting valve 15, electromagnetic coil 18 are all positioned on central axis through hole, and distribution inner tube 24 and distribution outer tube 25 are placed on cylinder block 10 central axis;
Piston 11 is connected and is used for guaranteeing tightness contact with sliding pair with distribution outer tube 25; Backhaul spacing ring 12 is tightly embedded on cylinder block 10 inwalls or with cylinder block 10 and is processed as one; Hollow shaft stepper motor 13 is connected with distribution outer tube 25 by shaft coupling 14; Hole in backward stroke of the piston gas exhausting valve 15 and distribution inner tube 24 are closely fixing, backward stroke of the piston gas exhausting valve 15 peripheries and cylinder block 10 inwall tightness sliding-contacts, on backward stroke of the piston gas exhausting valve 15, be provided with valve body exhaust duct 16, valve body exhaust duct 16 Tong Gang chambeies, one end, valve body exhaust duct 16 other ends are logical is arranged at the cylinder shell exhaust duct 17 on cylinder shell; Electromagnetic coil 18 centers arrange returning spring 19, and under returning spring 19 recoil states, the left side that is placed in the distribution inner tube 24 right part fractions insertion electromagnetic coils 18 in distribution outer tube 25 can be subject to the suction of electromagnetic coil 18 for guaranteeing distribution inner tube 24;
Impact power transmission part 20 and be arranged at cylinder block 10 left parts in order to the impact force to connecting drill bit transmission piston 11 thereon;
Distribution duct I 26 is positioned at constrainer 1, its right-hand member leads to the compressed air that constrainer 1 afterbody provides for connecing outside, left end leads to arranging in chamber 39 of electromagnetic coil 18, and arranging in chamber 39 in electromagnetic coil 18 leaves suitable space for entering for compressed air the inlet channel that is used as described self-propelled rock drill aperture apparatus;
Open distribution duct II in distribution inner tube 24 27 and open distribution duct III 28 on distribution outer tube 25 be radially to wear perforate and centered by axis direction alignment so that distribution inner tube 24 can make two pairs of ducts alignment during relative sliding on distribution outer tube 25 axis, to form the inlet channel of piston 11 strokes, distribution duct II 27, the position of distribution duct III 28 in distribution inner tube 24 and on distribution outer tube 25 all the backhaul spacing ring 12 in the left side of the right side in piston 11 and hollow shaft stepper motor 13 are other;
Distribution duct IV 29 is arranged at impacts in power transmission part 20 right side major part sections, distribution duct IV 29 is corner form, the cavity of one end ventilation cylinder body 10, the distribution duct V 30 on other end wildcard gas outer tube 25 is as the stroke exhaust passage of piston 11, also as the backhaul inlet channel of piston 11;
Distribution duct V 30 and distribution duct VI 31 lay respectively in distribution outer tube 25 and distribution inner tube 24, distribution duct V 30 is fixing over against communicating with distribution duct IV 29, when distribution inner tube 24 is done axis slip in distribution outer tube 25, realize distribution duct VI 31 and distribution duct V 30 communicate and from, the inlet channel while usining as piston 11 backhaul;
Distribution duct VII 32 is arranged in solid section of distribution inner tube 24 left parts, it is a T shape duct, its one end port is in distribution inner tube 24 left parts, and communicate with the right side that is arranged at the distribution duct X 40 of distribution outer tube 25 left parts, other end port is on solid section of sidewall of distribution inner tube 24, while doing axis direction slip along with distribution inner tube 24 in distribution outer tube 25, to realize that through hole on the sidewall of distribution inner tube 24 communicates with distribution duct V 30 on distribution outer tube 25 and from, the exhaust passage while usining as piston 11 stroke;
Distribution duct VIII 33 is arranged at impacts in power transmission part 20 left side microcephaly's sections, and its one end port, in left end, communicates with the distribution duct IX 34 being arranged in drill bit 22, and the other end communicates with the left side of distribution duct X 40;
In described self-propelled rock drill aperture apparatus, being provided with two connecting pins 23 can only make axis relative sliding and can not do relative swaying with distribution outer tube 25 for guaranteeing distribution inner tube 24, connecting pin 23 is fixedly connected with for impacting power transmission part 20, distribution outer tube 25 and distribution inner tube 24 and is connected in series with screw thread with impact power transmission part 20, distribution inner tube 24 is in axial sliding thereon, and distribution outer tube 25 is fixed with impact power transmission part 20 close contacts;
The constrainer 1 of constrainer part all can be and is threaded with front-end case 21 with cylinder block 10 and the cylinder block 10 of impacting swing mechanism part;
Cable 36 is used to electromagnetic coil 18 and hollow shaft stepper motor 13 that power supply is provided by being arranged at the cable through-hole 35 of constrainer 1.
Embodiment 2: as shown in Fig. 1-7, a kind of self-propelled rock drill aperture apparatus, comprises constrainer part, impacting swing mechanism part, drill bit 22, described constrainer partly comprises constrainer 1, ratchet 2, detent recess 3, goring push spring 4, goring push spring installing hole 5, main stay cord 6, minute stay cord 7, main stay cord duct 8, minute stay cord duct 9, described impacting swing mechanism partly comprises cylinder block 10, piston 11, backhaul spacing ring 12, hollow shaft stepper motor 13, shaft coupling 14, backward stroke of the piston gas exhausting valve 15, valve body exhaust duct 16, cylinder shell exhaust duct 17, electromagnetic coil 18, returning spring 19, impact power transmission part 20, front-end case 21, connecting pin 23, distribution inner tube 24, distribution outer tube 25, distribution duct I 26, distribution duct II 27, distribution duct III 28, distribution duct IV 29, distribution duct V 30, distribution duct VI 31, distribution duct VII 32, distribution duct VIII 33, distribution duct IX 34, cable through-hole 35, cable 36, dust suppression cooling water channel 37, electromagnetic coil arranges chamber 39, distribution duct X 40, hollow shaft stepper motor arranges chamber 41, distribution duct XI 42,
Described ratchet 2 is arranged in the detent recess 3 in constrainer 1 periphery with revolute pair connected mode; Goring push spring installing hole 5 is dug in detent recess 3, and the goring push spring 4 that is placed in goring push spring installing hole 5 divides with the hole wall of boring 38 the pawl end of ratchet 2 fully to contact; Divide stay cord 7 one end to be connected with ratchet 2, the other end is connected with the main stay cord 6 that is arranged in main stay cord duct 8 for making ratchet 2 depart from the hole wall of boring 38 through minute stay cord duct 9 in constrainer 1;
In described cylinder block 10, be from left to right provided with successively piston 11, backhaul spacing ring 12, hollow shaft stepper motor 13, backward stroke of the piston gas exhausting valve 15, electromagnetic coil 18, piston 11, backhaul spacing ring 12, hollow shaft stepper motor 13, backward stroke of the piston gas exhausting valve 15, electromagnetic coil 18 are all positioned on central axis through hole, and distribution inner tube 24 and distribution outer tube 25 are placed on cylinder block 10 central axis;
Piston 11 is connected and is used for guaranteeing tightness contact with sliding pair with distribution outer tube 25; Backhaul spacing ring 12 is tightly embedded on cylinder block 10 inwalls or with cylinder block 10 and is processed as one; Hollow shaft stepper motor 13 is connected with distribution outer tube 25 by shaft coupling 14; Hole in backward stroke of the piston gas exhausting valve 15 and distribution inner tube 24 are closely fixing, backward stroke of the piston gas exhausting valve 15 peripheries and cylinder block 10 inwall tightness sliding-contacts, on backward stroke of the piston gas exhausting valve 15, be provided with valve body exhaust duct 16, valve body exhaust duct 16 Tong Gang chambeies, one end, valve body exhaust duct 16 other ends are logical is arranged at the cylinder shell exhaust duct 17 on cylinder shell; Electromagnetic coil 18 centers arrange returning spring 19, and under returning spring 19 recoil states, the left side that is placed in the distribution inner tube 24 right part fractions insertion electromagnetic coils 18 in distribution outer tube 25 can be subject to the suction of electromagnetic coil 18 for guaranteeing distribution inner tube 24;
Impact power transmission part 20 and be arranged at cylinder block 10 left parts in order to the impact force to connecting drill bit transmission piston 11 thereon;
Distribution duct I 26 is positioned at constrainer 1, its right-hand member leads to the compressed air that constrainer 1 afterbody provides for connecing outside, left end leads to arranging in chamber 39 of electromagnetic coil 18, and arranging in chamber 39 in electromagnetic coil 18 leaves suitable space for entering for compressed air the inlet channel that is used as described self-propelled rock drill aperture apparatus;
Open distribution duct II in distribution inner tube 24 27 and open distribution duct III 28 on distribution outer tube 25 be radially to wear perforate and centered by axis direction alignment so that distribution inner tube 24 can make two pairs of ducts alignment during relative sliding on distribution outer tube 25 axis, to form the inlet channel of piston 11 strokes, distribution duct II 27, the position of distribution duct III 28 in distribution inner tube 24 and on distribution outer tube 25 all the backhaul spacing ring 12 in the left side of the right side in piston 11 and hollow shaft stepper motor 13 are other;
Distribution duct IV 29 is arranged at impacts in power transmission part 20 right side major part sections, distribution duct IV 29 is corner form, the cavity of one end ventilation cylinder body 10, the distribution duct V 30 on other end wildcard gas outer tube 25 is as the stroke exhaust passage of piston 11, also as the backhaul inlet channel of piston 11;
Distribution duct V 30 and distribution duct VI 31 lay respectively in distribution outer tube 25 and distribution inner tube 24, distribution duct V 30 is fixing over against communicating with distribution duct IV 29, when distribution inner tube 24 is done axis slip in distribution outer tube 25, realize distribution duct VI 31 and distribution duct V 30 communicate and from, the inlet channel while usining as piston 11 backhaul;
Distribution duct VII 32 is arranged in solid section of distribution inner tube 24 left parts, it is a T shape duct, its one end port is in distribution inner tube 24 left parts, and communicate with the right side that is arranged at the distribution duct X 40 of distribution outer tube 25 left parts, other end port is on solid section of sidewall of distribution inner tube 24, while doing axis direction slip along with distribution inner tube 24 in distribution outer tube 25, to realize that through hole on the sidewall of distribution inner tube 24 communicates with distribution duct V 30 on distribution outer tube 25 and from, the exhaust passage while usining as piston 11 stroke;
Distribution duct VIII 33 is arranged at impacts in power transmission part 20 left side microcephaly's sections, and its one end port, in left end, communicates with the distribution duct IX 34 being arranged in drill bit 22, and the other end communicates with the left side of distribution duct X 40;
In described self-propelled rock drill aperture apparatus, being provided with two connecting pins 23 can only make axis relative sliding and can not do relative swaying with distribution outer tube 25 for guaranteeing distribution inner tube 24, connecting pin 23 is fixedly connected with for impacting power transmission part 20, distribution outer tube 25 and distribution inner tube 24 and is connected in series with screw thread with impact power transmission part 20, distribution inner tube 24 is in axial sliding thereon, and distribution outer tube 25 is fixed with impact power transmission part 20 close contacts;
The constrainer 1 of constrainer part all can be and is threaded with front-end case 21 with cylinder block 10 and the cylinder block 10 of impacting swing mechanism part;
Cable 36 is used to electromagnetic coil 18 and hollow shaft stepper motor 13 that power supply is provided by being arranged at the cable through-hole 35 of constrainer 1.
Dust suppression cooling water channel 37 is housed for avoiding Drilling dry hole in the housing of described self-propelled rock drill aperture apparatus, dust suppression cooling water channel 37 extends through the front-end case 21 of impacting swing mechanism part always from constrainer part afterbody right side.
Described distribution inner tube 24 materials are ferrimagnet.
By reference to the accompanying drawings specific embodiment of the utility model is explained in detail above, but the utility model is not limited to above-described embodiment, in the ken possessing those of ordinary skills, can also under the prerequisite that does not depart from the utility model aim, make various variations.
Claims (3)
1. a self-propelled rock drill aperture apparatus, is characterized in that: comprise constrainer part, impacting swing mechanism part, drill bit (22), described constrainer partly comprises constrainer (1), ratchet (2), detent recess (3), goring push spring (4), goring push spring installing hole (5), main stay cord (6), minute stay cord (7), main stay cord duct (8), minute stay cord duct (9), described impacting swing mechanism partly comprises cylinder block (10), piston (11), backhaul spacing ring (12), hollow shaft stepper motor (13), shaft coupling (14), backward stroke of the piston gas exhausting valve (15), valve body exhaust duct (16), cylinder shell exhaust duct (17), electromagnetic coil (18), returning spring (19), impact power transmission part (20), front-end case (21), connecting pin (23), distribution inner tube (24), distribution outer tube (25), distribution duct I (26), distribution duct II (27), distribution duct III (28), distribution duct IV (29), distribution duct V (30), distribution duct VI (31), distribution duct VII (32), distribution duct VIII (33), distribution duct IX (34), cable through-hole (35), cable (36), dust suppression cooling water channel (37), electromagnetic coil arranges chamber (39), distribution duct X (40), hollow shaft stepper motor arranges chamber (41), distribution duct XI (42),
Described ratchet (2) is arranged in the detent recess (3) in constrainer (1) periphery with revolute pair connected mode; Goring push spring installing hole (5) is dug in detent recess (3), and the goring push spring (4) that is placed in goring push spring installing hole (5) divides with the hole wall of boring (38) the pawl end of ratchet (2) fully to contact; Divide stay cord (7) one end to be connected with ratchet (2), the other end is connected with the main stay cord (6) that is arranged in main stay cord duct (8) for making ratchet (2) depart from the hole wall of boring (38) through minute stay cord duct (9) in constrainer (1);
In described cylinder block (10), be from left to right provided with successively piston (11), backhaul spacing ring (12), hollow shaft stepper motor (13), backward stroke of the piston gas exhausting valve (15), electromagnetic coil (18), piston (11), backhaul spacing ring (12), hollow shaft stepper motor (13), backward stroke of the piston gas exhausting valve (15), electromagnetic coil (18) are all positioned on central axis through hole, and distribution inner tube (24) and distribution outer tube (25) are placed on cylinder block (10) central axis;
Piston (11) is connected and is used for guaranteeing tightness contact with sliding pair with distribution outer tube (25); Backhaul spacing ring (12) is tightly embedded on cylinder block (10) inwall or with cylinder block (10) and is processed as one; Hollow shaft stepper motor (13) is connected with distribution outer tube (25) by shaft coupling (14); Hole in backward stroke of the piston gas exhausting valve (15) and distribution inner tube (24) are closely fixing, backward stroke of the piston gas exhausting valve (15) periphery and the sliding-contact of cylinder block (10) inwall tightness, on backward stroke of the piston gas exhausting valve (15), be provided with valve body exhaust duct (16), Tong Gang chamber, valve body exhaust duct (16) one end, valve body exhaust duct (16) other end is logical is arranged at the cylinder shell exhaust duct (17) on cylinder shell; Electromagnetic coil (18) center arranges returning spring (19), under returning spring (19) recoil state, the left side that is placed in distribution inner tube (24) the right part fraction insertion electromagnetic coil (18) in distribution outer tube (25) is used for guaranteeing that distribution inner tube (24) can be subject to the suction of electromagnetic coil (18);
Impact power transmission part (20) and be arranged at cylinder block (10) left part in order to the impact force to connecting drill bit transmission piston (11) thereon;
Distribution duct I (26) is positioned at constrainer (1), its right-hand member leads to constrainer (1) afterbody for connecing the compressed air that outside provides, left end leads to arranging in chamber (39) of electromagnetic coil (18), and arranging in chamber (39) in electromagnetic coil (18) leaves suitable space for entering for compressed air the inlet channel that is used as described self-propelled rock drill aperture apparatus;
Open the distribution duct II (27) in distribution inner tube (24) and open distribution duct III (28) on distribution outer tube (25) be radially to wear perforate and centered by axis direction alignment so that distribution inner tube (24) can make two pairs of ducts alignment during relative sliding on distribution outer tube (25) axis, to form the inlet channel of piston (11) stroke, distribution duct II (27), distribution duct III (28) is the position on upper and distribution outer tube (25) all by the backhaul spacing ring (12) in the left side of the right side in piston (11) and hollow shaft stepper motor (13) in distribution inner tube (24),
Distribution duct IV (29) is arranged at impacts in the major part section of power transmission part (20) right side, distribution duct IV (29) is corner form, the cavity of one end ventilation cylinder body (10), distribution duct V (30) on other end wildcard gas outer tube (25) is as the stroke exhaust passage of piston (11), also as the backhaul inlet channel of piston (11);
Distribution duct V (30) and distribution duct VI (31) lay respectively in distribution outer tube (25) and distribution inner tube (24), distribution duct V (30) is fixing over against communicating with distribution duct IV (29), when distribution inner tube (24) is done axis slip in distribution outer tube (25), realize distribution duct VI (31) and distribution duct V (30) communicate and from, the inlet channel while usining as piston (11) backhaul;
Distribution duct VII (32) is arranged in solid section of distribution inner tube (24) left part, it is a T shape duct, its one end port is in distribution inner tube (24) left part, and communicate with the right side that is arranged at the distribution duct X (40) of distribution outer tube (25) left part, other end port is on solid section of sidewall of distribution inner tube (24), while doing axis direction slip along with distribution inner tube (24) in distribution outer tube (25), with realize that through hole on the sidewall of distribution inner tube (24) communicates with distribution duct V (30) on distribution outer tube (25) and from, exhaust passage while usining as piston (11) stroke,
Distribution duct VIII (33) is arranged at impacts in the microcephaly's section of power transmission part (20) left side, and its one end port, in left end, communicates with the distribution duct IX (34) being arranged in drill bit (22), and the other end communicates with the left side of distribution duct X (40);
In described self-propelled rock drill aperture apparatus, being provided with two connecting pins (23) can only make axis relative sliding and can not do relative swaying with distribution outer tube (25) for guaranteeing distribution inner tube (24), connecting pin (23) is fixedly connected with for impacting power transmission part (20), distribution outer tube (25) and distribution inner tube (24) and is connected in series with screw thread with impact power transmission part (20), distribution inner tube (24) is in axial sliding thereon, and distribution outer tube (25) is fixed with impact power transmission part (20) close contact;
The constrainer (1) of constrainer part all can be and is threaded with front-end case (21) with cylinder block (10) and the cylinder block (10) of impacting swing mechanism part;
Cable (36) is used to electromagnetic coil (18) and hollow shaft stepper motor (13) that power supply is provided by being arranged at the cable through-hole (35) of constrainer (1).
2. self-propelled rock drill aperture apparatus according to claim 1, it is characterized in that: dust suppression cooling water channel (37) is housed for avoiding Drilling dry hole in the housing of described self-propelled rock drill aperture apparatus, dust suppression cooling water channel (37) extends through the front-end case (21) of impacting swing mechanism part always from constrainer part afterbody right side.
3. self-propelled rock drill aperture apparatus according to claim 1, is characterized in that: described distribution inner tube (24) material is ferrimagnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420232876.4U CN203856398U (en) | 2014-05-08 | 2014-05-08 | Self-propelled drilling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420232876.4U CN203856398U (en) | 2014-05-08 | 2014-05-08 | Self-propelled drilling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203856398U true CN203856398U (en) | 2014-10-01 |
Family
ID=51606260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420232876.4U Withdrawn - After Issue CN203856398U (en) | 2014-05-08 | 2014-05-08 | Self-propelled drilling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203856398U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104005704A (en) * | 2014-05-08 | 2014-08-27 | 昆明理工大学 | Self-propelled rock drilling device |
-
2014
- 2014-05-08 CN CN201420232876.4U patent/CN203856398U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104005704A (en) * | 2014-05-08 | 2014-08-27 | 昆明理工大学 | Self-propelled rock drilling device |
| CN104005704B (en) * | 2014-05-08 | 2016-02-24 | 昆明理工大学 | A kind of self-propelled rock drill aperture apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104005704B (en) | A kind of self-propelled rock drill aperture apparatus | |
| CN105569563A (en) | Rotary drilling rig bit capable of impact drilling | |
| CN104772500B (en) | A kind of hand held hydraulic drill | |
| FI900206A0 (en) | Hydraulic submersible drilling machine | |
| CN104033101A (en) | Major-diameter pneumatic downhole hammer with casing pipe drill | |
| CN211201821U (en) | Percussion rotary drilling core drill for complex bedrock under ice | |
| CN105156025B (en) | A kind of hyperbar rushes down-hole percussion drill tool soon | |
| CN104165025B (en) | The drilling tool that a kind of long screw drill rod is combined with down-hole hammer | |
| CN105156024B (en) | One kind rushes wear-resistant high life down-the-hole churn drilling tools soon | |
| CN203856398U (en) | Self-propelled drilling device | |
| CN204371095U (en) | A kind of efficient down-hole hammer | |
| WO2019120127A1 (en) | Closed hydraulic rock drill | |
| CN203531744U (en) | Bunched type normal circulation pneumatic down-hole hammer | |
| CN206785305U (en) | A kind of hollow hammer hole reacting cycle continuous sampling rig | |
| CN103132907B (en) | A kind of gear wheel down-the-hole mixing is crept into drilling tool and is comprised the gear wheel down-the-hole drill of this drilling tool | |
| CN202249754U (en) | Pneumatic down hole hammer with drilling and coring device | |
| CN208267762U (en) | A kind of compound rock drill | |
| CN202194567U (en) | Hydraulic rotating pneumatic impact rock drill | |
| CN203321312U (en) | Gear down-the-hole mixing drilling tool and gear down-the-hole drilling machine comprising gear down-the-hole mixing drilling tool | |
| CN204851058U (en) | Soon towards stand wear and tear high life down --hole churn drilling tools | |
| US3169584A (en) | Rock drilling apparatus | |
| CN210509027U (en) | Hydraulic-pneumatic linkage rock drill | |
| CN203296683U (en) | High-air-pressure down-hole impactor | |
| CN210033402U (en) | Toe end valve | |
| CN108316932B (en) | Quick cutting device for large-aperture cut hole in rock drift tunneling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141001 Effective date of abandoning: 20160224 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20141001 Effective date of abandoning: 20160224 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |