CN204371382U - The airborne roof-bolter of underground mine use single armed - Google Patents
The airborne roof-bolter of underground mine use single armed Download PDFInfo
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- CN204371382U CN204371382U CN201420782163.5U CN201420782163U CN204371382U CN 204371382 U CN204371382 U CN 204371382U CN 201420782163 U CN201420782163 U CN 201420782163U CN 204371382 U CN204371382 U CN 204371382U
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- oil cylinder
- operating desk
- cantilever
- rotary actuator
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Abstract
The utility model belongs to the technical field of underground coal mine short-walling equipment, is specifically related to the airborne roof-bolter of a kind of underground mine use single armed, solves existing anchor bar suspension device Problems existing.It comprises rotary table, cantilever, operating desk assembly, drill boom slewing equipment and drilling cramp, removable, also can the rotary table of horizontal rotation be the base of the airborne roof-bolter of single armed and equipment connection, cantilever support is on rotary table, cantilever is inside and outside sleeve structure, cantilever one end is connected by the jointed shaft of level with rotary table, the other end is articulated with operating desk assembly, drill boom slewing equipment is installed on operating desk assembly front end, the rotatable front end being installed on operating desk assembly of drilling cramp.The utility model is mainly used in other coal mine equipment mining machinery, roadway repair machinery etc. supporting, dependence hydraulic oil is power source, movable on the track that can provide at equipment, there is the multiple degrees of freedoms such as flexible and rotation, realize the construction of full face rockbolt installation.
Description
Technical field
The utility model belongs to the technical field of underground coal mine short-walling equipment, is specifically related to the airborne roof-bolter of a kind of underground mine use single armed.
Background technology
In coal mine down-hole tunnel repairing construction, unsupported back span requires very little, needs to follow work progress, carries out bolt support in time.Existing single armed roof-bolter, mainly supporting for equipment such as development machines, attachment is installed on development machine pick and cuts on arm, rely on the pick of rigidity enough development machines to cut arm to support as drilling cramp, simultaneously, owing to cutting the larger restriction of arm bulk by pick, drilling cramp can only realize one-sided rockbolt installation, and single drilling cramp does not possess the ability of roadway full-fracture-surfacanchoring-rod rockbolt installation.The single armed rig of jumbo, load capacity is less, and swingable angular range is little, and does not have operating platform, in roadway repair process, is not easy to carry out artificial treatment to top board and old anchor pole.
Summary of the invention
The problems referred to above that the utility model exists to solve existing anchor bar suspension device, provide the airborne roof-bolter of a kind of underground mine use single armed, under being applicable to roadway repair operating mode, carry out the roof-bolter assembly of anchor bolt construction, accessible site is in roadway repair equipment, and follow the reach of roadway repair progress, volume is little, realize the rockbolt installation construction synchronous with roadway repair, carry out roadway full-fracture-surfacanchoring-rod anchor bolt construction
The utility model adopts following technical scheme to realize:
The airborne roof-bolter of a kind of underground mine use single armed, is characterized in that: comprise rotary table, cantilever, operating desk assembly, drill boom slewing equipment and drilling cramp,
Removable, also can the rotary table of horizontal rotation be the base of the airborne roof-bolter of single armed and equipment connection, cantilever support on rotary table,
Cantilever is inside and outside sleeve structure, and cantilever one end is connected by the jointed shaft of level with rotary table, the other end is articulated with operating desk assembly,
Drill boom slewing equipment is installed on operating desk assembly front end, the rotatable front end being installed on operating desk assembly of drilling cramp.
Rotary table comprises the base of bottom, install slewing bearing in the middle of base, floating bearing top installs back swivel base, base there is the stay hook that the trapped orbit on base and equipment can be realized being slidably connected, base bottom has passes oil cylinder ear seat, oil cylinder one end is installed on passes oil cylinder ear seat, and the oil cylinder other end is connected to trapped orbit, promotes base and moves forward and backward along trapped orbit; Base rear portion is provided with two group oil cylinder ear seats, and for installing angling cylinder, two angling cylinders are symmetrically arranged in revolving bed both sides, and the oil cylinder ear seat on one end and base is hinged, the other end and revolving bed hinged; Revolving bed top machined cantilever installs pin-and-hole, hinged with cantilever; The anterior upper position of revolving bed is provided with two group oil cylinder ears, for installing cantilever elevation oil cylinder.
Cantilever is inside and outside sleeve structure, comprises inner sleeve and outer sleeve, and there is oil cylinder connecting hole outer sleeve rear end, is connected with cantilever telescopic oil cylinder one end, and the cantilever telescopic oil cylinder other end connects inner sleeve; Outer sleeve top is connecting pin bores, is rotationally connected with revolving bed, has the mounting ear seat of cantilever elevation oil cylinder in the middle part of outer sleeve, hinged with cantilever elevation oil cylinder, and the cantilever elevation oil cylinder other end is articulated with the anterior upper position of revolving bed; Outer sleeve front portion is guiding mechanism, guiding mechanism comprises and is placed on wear-resisting copper coin outside inner sleeve and radial direction and is installed on outer sleeve and the adjustment bolt acting on wear-resisting copper coin, inner sleeve is a welding rhs-structure, front end is welded with engaging lug seat, engaging lug seat upper hole is connected by pin with operating desk assembly, and engaging lug seat bottom hole is connected with operating desk leveling cyclinder.
Operating desk assembly comprises middle link, operating desk, ceiling assembly and operating valve group, and middle link top has pin-and-hole to be connected with the inner sleeve of cantilever, and can rotate relative to inner sleeve; Middle link front end has pin-and-hole ear seat to be connected with drill boom slewing equipment; There is oil cylinder ear seat at middle link rear portion for fitting operation platform leveling cyclinder, adjustment operating desk level; There are two group oil cylinder ear seats for installing drill arm swing oil cylinder bottom middle link, promote drill boom slewing equipment and swing; Middle link both sides, be separately installed with left and right ceiling assembly and left and right operating desk, ceiling assembly is lifting structure, comprise inner and outer sleeves, ceiling outer sleeve welded and installed is outside middle link, by regulating copper coin adjusting play between outer sleeve and inner sleeve, ceiling hoist cylinder is installed between inner and outer sleeves; Be welded with operating desk rail plate outside middle link, operating desk rail plate is connected by operating desk hoist cylinder with between operating desk, regulates height, and arranging spacer pin, to carry out lower limit position spacing; Subsidiary turnover folding formula extendable platform on operating desk, with extended operation space.
Drill boom slewing equipment comprises rotary actuator mount pad I, rotary actuator I, rotary actuator mount pad II, rotary actuator II and drilling cramp fixed mount, rotary actuator I is fixedly installed on rotary actuator mount pad I, the axis of rotation consolidation of rotary actuator mount pad II and rotary actuator I, rotary actuator II is fixedly installed in rotary actuator mount pad II, drilling cramp fixed mount is fixedly installed on rotary actuator II axis of rotation, rotary actuator mount pad I left upper portion is hinged by the middle link right-hand member in bearing pin and operating desk assembly, bottom two group oil cylinder ear seat and drill boom oscillating oil cylinder hinged, the frame assembly consolidation of drilling cramp fixed mount and drilling cramp.
The utility model rotary table is the base of the airborne roof-bolter of single armed and equipment connection, plays a part to slide on equipment rail simultaneously, has the function of slip and horizontal rotation, and for supporting cantilever, for roof-bolter assembly provides a supporting role.
Cantilever is inside and outside sleeve structure, has larger flexible stroke, rises and anchor pole drilling cramp is extend out to operating position, so that the effect of anchor bolt construction, cantilever is connected with the jointed shaft of rotary table by level, can realize the swing with floor installation plane orthogonal direction, regulates anchor bolt construction height; Meanwhile, also under the drive of rotary table, the swing of level can be realized.
Operating desk assembly has provides operative platform, and remove so that workman carries out old anchor pole head, the back works such as new rockbolt installation, platform has the function of Level tune, and for supporting drill boom slewing equipment.
Drill boom slewing equipment is made up of two groups of rotary oil cylinders, has and carries out to drilling cramp the ability that each vertical direction of level respectively rotates adjustment 180 degree, realize the swing of drilling cramp in all directions, to carry out anchor bolt construction to diverse location.
Drilling cramp is the device carrying out anchor bolt construction in roof-bolter assembly, has the functions such as boring, rockbolt installation, resin agitating, nut screwing clamping, and can carry out anchor cable installation.
The utility model hinge structure has following beneficial effect: be mainly used in other coal mine equipment mining machinery, roadway repair machinery etc. supporting, dependence hydraulic oil is power source, movable on the track that can provide at equipment, there is the multiple degrees of freedoms such as flexible and rotation, realize the construction of full face rockbolt installation.It is long that the utility model has flexible stroke, and anchor bolt construction scope is large, vibrates little feature during construction, with digging or roadway repair coordinative composition of equipments, the unsupported back span in sinking and drifting can be reduced, alleviate labor strength, improve efficiency and the safety of anchor bolt construction in roadway repair.
Accompanying drawing explanation
Fig. 1 is overall structure front view,
Fig. 2 is overall structure top view,
Fig. 3 is rotary table structure chart,
Fig. 4 is cantilever construction figure,
Fig. 5 is the I portion enlarged drawing of Fig. 4,
Fig. 6 is operating desk assembly structure chart,
Fig. 7 is drill boom slewing equipment structure chart,
In figure:
1, rotary table, 2, angling cylinder, 3, cantilever, 4, cantilever elevation oil cylinder, 5, operating desk assembly, 6, operating desk leveling cyclinder, 7, drill boom slewing equipment, 8, drill boom oscillating oil cylinder, 9, drilling cramp, 10, cantilever telescopic oil cylinder,
1.1, base, 1.2, angling cylinder, 1.3, revolving bed, 1.4, floating bearing, 1.5, stay hook, 1.6, adjusting pad, 1.7, pass oil cylinder ear seat,
3.1, outer sleeve, 3.2, inner sleeve, 3.3, cantilever telescopic oil cylinder, 3.4, engaging lug seat, 3.5, wear-resisting copper coin, 3.6, adjusting pad, 3.7, fixed head,
5.1, middle link, 5.2, ceiling assembly, 5.3, operating desk, 5.4, ceiling hoist cylinder, 5.5, operating desk hoist cylinder,
7.1, rotary actuator mount pad 1,7.2, rotary actuator 1,7.3, rotary actuator mount pad 2,7.4, rotary actuator 2,7.5, drilling cramp fixed mount.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described further:
The airborne roof-bolter of underground mine use single armed, comprises the compositions such as rotary table, cantilever, operating desk assembly, drill boom slewing equipment, drilling cramp.Rotary table 1 is made up of base, floating bearing, revolving bed etc., and can realize slippage and rotation, rotary table 1 is the base of the airborne roof-bolter of single armed and equipment connection, and cantilever support is on rotary table 1.Cantilever 3 is connected with operating desk assembly 5 with rotary table 1, can realize Telescopic.Drill boom slewing equipment 7 is installed on operating desk assembly 5 front end, for installing drilling cramp 9, and realizes drilling cramp 9 vertically and the revolution in level two direction.Shown in Fig. 1,2, be structure chart of the present utility model, relation of installing shown in figure wants correct, solid and reliable.
Complete equipment utilizes the hold-down hook under rotary table 1 to be installed on trapped orbit, can under external force along track slide anteroposterior.
Rotary table 1 comprises the base 1.1 of bottom, 1.4 are installed slewing bearing in the middle of base 1.1, floating bearing 1.4 top installs back transposase 11 .3, base 1.1 there is the stay hook 1.5 that base 1.1 and the trapped orbit on equipment can be realized being slidably connected, base 1.1 bottom has passes oil cylinder ear seat 1.7, oil cylinder one end is installed on passes oil cylinder ear seat 1.7, and the oil cylinder other end is connected to trapped orbit, promotes base and moves forward and backward along trapped orbit; Base 1.1 rear portion is provided with two group oil cylinder ear seats, for installing angling cylinder 1.2, promoting revolving bed and rotating; Two angling cylinders 1.2 are symmetrically arranged in revolving bed 1.3 both sides, and the oil cylinder ear seat on one end and base 1.1 is hinged, the other end and revolving bed 1.3 hinged; Processing floating bearing mounting plane in base upper surface, for installing slewing bearing, floating bearing outer ring is installed on base.Revolving bed is connected with floating bearing inner ring, and rear portion is installed two groups of angling cylinders and fixed ear, is connected with angling cylinder, relies on angling cylinder to promote to realize revolution; Revolving bed 1.3 top machined cantilever installs pin-and-hole, hinged with cantilever 3; The anterior upper position of revolving bed 1.3 is provided with two group oil cylinder ears, for installing cantilever elevation oil cylinder 4.
Cantilever 3 is inside and outside sleeve structure, there is Telescopic, for connecting rotary table 1 and operating desk assembly 5, the function of drilling cramp outreach is adjusted when realizing the work of roof-bolter assembly, it comprises inner sleeve 3.2 and outer sleeve 3.1, there is oil cylinder connecting hole outer sleeve 3.1 rear end, is connected with cantilever telescopic oil cylinder 3.3 one end, and cantilever telescopic oil cylinder 3.3 other end connects inner sleeve 3.2; Outer sleeve 3.1 top is connecting pin bores, is rotationally connected with revolving bed 1.3, has the mounting ear seat of cantilever elevation oil cylinder 4 in the middle part of outer sleeve 3.1, hinged with cantilever elevation oil cylinder 4, and cantilever elevation oil cylinder 4 other end is articulated with the anterior upper position of revolving bed 1.3; Outer sleeve 3.1 front portion is guiding mechanism, guiding mechanism comprises and is placed on wear-resisting copper coin 3.5 outside inner sleeve 3.2 and radial direction and is installed on outer sleeve 3.1 and the adjustment bolt acting on wear-resisting copper coin 3.5, there is adjusting pad between adjustment bolt and wear-resisting copper coin, guiding mechanism can be relied on to adjust the gap with inner sleeve.Inner sleeve 3.2 is a welding rhs-structure, and front end is welded with engaging lug seat 3.4, and engaging lug seat 3.4 upper hole is connected by pin with operating desk assembly 5, and engaging lug seat 3.4 bottom hole is connected with operating desk leveling cyclinder 6.
The operating valve group that operating desk assembly 5 comprises middle link 5.1, operating desk 5.3, ceiling assembly 5.2 and is installed on middle link, middle link 5.1 top has pin-and-hole to be connected with the inner sleeve 3.2 of cantilever, and can rotate relative to inner sleeve 3.2; Middle link 5.1 front end has pin-and-hole ear seat to be connected with drill boom slewing equipment 7; There is oil cylinder ear seat at middle link 5.1 rear portion for fitting operation platform leveling cyclinder 6, adjustment operating desk level; There are two group oil cylinder ear seats for installing drill arm swing oil cylinder 8 bottom middle link 5.1, promote drill boom slewing equipment 7 and swing, swing adjustment anchor bolt construction angle; Middle link 5.1 both sides, be separately installed with left and right ceiling assembly and left and right operating desk, ceiling assembly 5.2 is lifting structure, comprise inner and outer sleeves, ceiling outer sleeve welded and installed is outside middle link 5.1, by regulating copper coin adjusting play between outer sleeve and inner sleeve, ceiling hoist cylinder 5.4 being installed between inner and outer sleeves, realizing inner sleeve lifting; Be welded with operating desk rail plate outside middle link 5.1, operating desk rail plate is connected by operating desk hoist cylinder 5.5 with between operating desk, regulates height, and arranging spacer pin, to carry out lower limit position spacing; Subsidiary turnover folding formula extendable platform on operating desk, with extended operation space.
Drill boom slewing equipment 7 comprises rotary actuator mount pad I 7.1, rotary actuator I 7.2, rotary actuator mount pad II 7.3, rotary actuator II 7.4 and drilling cramp fixed mount 7.5, rotary actuator I 7.2 is fixedly installed on rotary actuator mount pad I 7.1, the axis of rotation consolidation of rotary actuator mount pad II 7.3 and rotary actuator I 7.2, rotary actuator II 7.4 is fixedly installed in rotary actuator mount pad II 7.3, drilling cramp fixed mount 7.5 is fixedly installed on rotary actuator II 7.4 axis of rotation, rotary actuator mount pad I 7.1 left upper portion is hinged by middle link 5.1 right-hand member in bearing pin and operating desk assembly 5, bottom two group oil cylinder ear seat and drill boom oscillating oil cylinder 8 hinged, the frame assembly consolidation of drilling cramp fixed mount 7.5 and drilling cramp 9.
Drilling cramp 9 is the executing agencies for rockbolt installation construction, by with the relatively-stationary frame assembly of rotary oil cylinder, can slide up and down balladeur train, support column assembly in frame assembly slideway, and be installed on frame assembly side long feed cylinder, be installed on short feed cylinder on balladeur train and bore case composition.Have flexible, creep into, the function such as agitating resin, fastening nut, completely can realize rockbolt installation.
Claims (5)
1. the airborne roof-bolter of underground mine use single armed, is characterized in that: comprise rotary table (1), cantilever (2), operating desk assembly (5), drill boom slewing equipment (7) and drilling cramp (9),
Removable, also can the rotary table (1) of the horizontal rotation base that is the airborne roof-bolter of single armed and equipment connection, cantilever support on rotary table (1),
Cantilever (3) is inside and outside sleeve structure, and cantilever (3) one end is connected by the jointed shaft of level with rotary table 1, the other end is articulated with operating desk assembly,
Drill boom slewing equipment (7) is installed on operating desk assembly (5) front end, the rotatable front end being installed on operating desk assembly (5) of drilling cramp (9).
2. the airborne roof-bolter of underground mine use single armed according to claim 1, it is characterized in that: rotary table (1) comprises the base (1.1) of bottom, install slewing bearing (1.4) in the middle of base (1.1), floating bearing (1.4) top installs back swivel base (1.3), base (1.1) there is the stay hook (1.5) that base (1.1) and the trapped orbit on equipment can be realized being slidably connected, base (1.1) bottom has passes oil cylinder ear seat (1.7), oil cylinder one end is installed on passes oil cylinder ear seat (1.7), the oil cylinder other end is connected to trapped orbit, promote base to move forward and backward along trapped orbit, base (1.1) rear portion is provided with two group oil cylinder ear seats, for installing angling cylinder (1.2), two angling cylinders (1.2) are symmetrically arranged in revolving bed (1.3) both sides, and the oil cylinder ear seat on one end and base (1.1) is hinged, the other end and revolving bed (1.3) hinged, revolving bed (1.3) top machined cantilever installs pin-and-hole, hinged with cantilever (3), revolving bed (1.3) anterior upper position is provided with two group oil cylinder ears, for installing cantilever elevation oil cylinder (4).
3. the airborne roof-bolter of underground mine use single armed according to claim 2, it is characterized in that: cantilever (3) is inside and outside sleeve structure, comprise inner sleeve (3.2) and outer sleeve (3.1), there is oil cylinder connecting hole outer sleeve (3.1) rear end, be connected with cantilever telescopic oil cylinder (3.3) one end, cantilever telescopic oil cylinder (3.3) other end connects inner sleeve (3.2); Outer sleeve (3.1) top is connecting pin bores, be rotationally connected with revolving bed (1.3), there is the mounting ear seat of cantilever elevation oil cylinder (4) at outer sleeve (3.1) middle part, and hinged with cantilever elevation oil cylinder (4), cantilever elevation oil cylinder (4) other end is articulated with revolving bed (1.3) anterior upper position; Outer sleeve (3.1) front portion is guiding mechanism, guiding mechanism comprises and is placed on wear-resisting copper coin (3.5) outside inner sleeve (3.2) and radial direction to be installed on outer sleeve (3.1) upper and act on the adjustment bolt of wear-resisting copper coin (3.5), inner sleeve (3.2) is a welding rhs-structure, front end is welded with engaging lug seat (3.4), engaging lug seat (3.4) upper hole is connected by pin with operating desk assembly (5), and engaging lug seat (3.4) bottom hole is connected with operating desk leveling cyclinder (6).
4. the airborne roof-bolter of underground mine use single armed according to claim 1 or 2 or 3, it is characterized in that: operating desk assembly (5) comprises middle link (5.1), operating desk (5.3), ceiling assembly (5.2) and operating valve group, middle link (5.1) top has pin-and-hole to be connected with the inner sleeve (3.2) of cantilever, and can rotate relative to inner sleeve (3.2); Middle link (5.1) front end has pin-and-hole ear seat to be connected with drill boom slewing equipment (7); There is oil cylinder ear seat at middle link (5.1) rear portion for fitting operation platform leveling cyclinder (6), adjustment operating desk level; There are two group oil cylinder ear seats middle link (5.1) bottom for installing drill arm swing oil cylinder (8), promotes drill boom slewing equipment (7) and swings; Middle link (5.1) both sides, be separately installed with left and right ceiling assembly and left and right operating desk, ceiling assembly (5.2) is lifting structure, comprise inner and outer sleeves, ceiling outer sleeve welded and installed is in middle link (5.1) outside, by regulating copper coin adjusting play between outer sleeve and inner sleeve, ceiling hoist cylinder (5.4) is installed between inner and outer sleeves; Middle link (5.1) outside is welded with operating desk rail plate, and operating desk rail plate is connected by operating desk hoist cylinder (5.5) with between operating desk, regulates highly, and arranging spacer pin, to carry out lower limit position spacing; Subsidiary turnover folding formula extendable platform on operating desk, with extended operation space.
5. the airborne roof-bolter of underground mine use single armed according to claim 4, it is characterized in that drill boom slewing equipment 7 comprises rotary actuator mount pad I (7.1), rotary actuator I (7.2), rotary actuator mount pad II (7.3), rotary actuator II (7.4) and drilling cramp fixed mount (7.5), rotary actuator I (7.2) is fixedly installed on rotary actuator mount pad I (7.1), the axis of rotation consolidation of rotary actuator mount pad II (7.3) and rotary actuator I (7.2), rotary actuator II (7.4) is fixedly installed in rotary actuator mount pad II (7.3), drilling cramp fixed mount (7.5) is fixedly installed on rotary actuator II (7.4) axis of rotation, rotary actuator mount pad I (7.1) left upper portion is hinged by middle link (5.1) right-hand member in bearing pin and operating desk assembly (5), bottom two group oil cylinder ear seat and drill boom oscillating oil cylinder (8) hinged, the frame assembly consolidation of drilling cramp fixed mount (7.5) and drilling cramp (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420782163.5U CN204371382U (en) | 2014-12-13 | 2014-12-13 | The airborne roof-bolter of underground mine use single armed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420782163.5U CN204371382U (en) | 2014-12-13 | 2014-12-13 | The airborne roof-bolter of underground mine use single armed |
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| Publication Number | Publication Date |
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| CN204371382U true CN204371382U (en) | 2015-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420782163.5U Expired - Fee Related CN204371382U (en) | 2014-12-13 | 2014-12-13 | The airborne roof-bolter of underground mine use single armed |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564112A (en) * | 2014-12-13 | 2015-04-29 | 中国煤炭科工集团太原研究院有限公司 | Single-arm onboard roof bolter for underground coal mine |
| CN105257213A (en) * | 2015-09-28 | 2016-01-20 | 中国煤炭科工集团太原研究院有限公司 | Double-arm anchor drill wagon with transport mechanisms |
| CN106089270A (en) * | 2016-07-27 | 2016-11-09 | 山西天巨重工机械有限公司 | A kind of multi-functional drill arm assembly of multi-angle rotary |
-
2014
- 2014-12-13 CN CN201420782163.5U patent/CN204371382U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564112A (en) * | 2014-12-13 | 2015-04-29 | 中国煤炭科工集团太原研究院有限公司 | Single-arm onboard roof bolter for underground coal mine |
| CN104564112B (en) * | 2014-12-13 | 2017-01-04 | 中国煤炭科工集团太原研究院有限公司 | The airborne roof-bolter of underground mine use single armed |
| CN105257213A (en) * | 2015-09-28 | 2016-01-20 | 中国煤炭科工集团太原研究院有限公司 | Double-arm anchor drill wagon with transport mechanisms |
| CN105257213B (en) * | 2015-09-28 | 2019-02-19 | 中国煤炭科工集团太原研究院有限公司 | A kind of two-arm roofboltier of band transport establishment |
| CN106089270A (en) * | 2016-07-27 | 2016-11-09 | 山西天巨重工机械有限公司 | A kind of multi-functional drill arm assembly of multi-angle rotary |
| CN106089270B (en) * | 2016-07-27 | 2018-05-29 | 山西天巨重工机械有限公司 | A kind of multi-functional drill arm assembly of multi-angle rotary |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150603 Termination date: 20161213 |
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| CF01 | Termination of patent right due to non-payment of annual fee |