CN106150367A - A kind of underground coal mine steady boring device of base plate armature boring - Google Patents

A kind of underground coal mine steady boring device of base plate armature boring Download PDF

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Publication number
CN106150367A
CN106150367A CN201610617871.7A CN201610617871A CN106150367A CN 106150367 A CN106150367 A CN 106150367A CN 201610617871 A CN201610617871 A CN 201610617871A CN 106150367 A CN106150367 A CN 106150367A
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CN
China
Prior art keywords
underframe
supporting cylinder
guide groove
location
positioning
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.)
Pending
Application number
CN201610617871.7A
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Chinese (zh)
Inventor
耿志国
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xuzhou Naili Macromolecule Technology Co Ltd
Original Assignee
Xuzhou Naili Macromolecule Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Xuzhou Naili Macromolecule Technology Co Ltd filed Critical Xuzhou Naili Macromolecule Technology Co Ltd
Priority to CN201610617871.7A priority Critical patent/CN106150367A/en
Publication of CN106150367A publication Critical patent/CN106150367A/en
Pending legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B15/00—Supports for the drilling machine, e.g. derricks or masts
    • E21B15/003—Supports for the drilling machine, e.g. derricks or masts adapted to be moved on their substructure, e.g. with skidding means; adapted to drill a plurality of wells
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B15/00—Supports for the drilling machine, e.g. derricks or masts
    • E21B15/04—Supports for the drilling machine, e.g. derricks or masts specially adapted for directional drilling, e.g. slant hole rigs
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B15/00—Supports for the drilling machine, e.g. derricks or masts
    • E21B15/04—Supports for the drilling machine, e.g. derricks or masts specially adapted for directional drilling, e.g. slant hole rigs
    • E21B15/045—Hydraulic, pneumatic or electric circuits for their positioning
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/02—Drilling rigs characterized by means for land transport with their own drive, e.g. skid mounting or wheel mounting
    • E21B7/024—Drilling rigs characterized by means for land transport with their own drive, e.g. skid mounting or wheel mounting having means for adapting to inclined terrain; having means for stabilizing the vehicle while drilling
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/04—Directional drilling
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D20/00—Setting anchoring-bolts
    • E21D20/003—Machines for drilling anchor holes and setting anchor bolts

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

The invention discloses a kind of underground coal mine steady boring device of base plate armature boring, including underframe (1), workpiece (2), added (3) and device positioning element (4)；Added it is fixedly mounted on underframe；Workpiece is arranged on underframe, including body (21), front and back guide groove (22), front and back positioning and locking nut (23), left and right guide groove (24), left and right positioning and locking nut (25), rig installing rack (26) and rig (27)；Device positioning element includes location supporting cylinder, top (41), location supporting cylinder, bottom (42) and control valve group (43), and control valve group is connected with top location supporting cylinder and location, bottom supporting cylinder respectively.This underground coal mine base plate armature boring steady boring device simple in construction, it is possible to realize roadway floor quickly carries out drilling operation in boring procedure, and then overall raising rockbolt installation speed, be adapted to the requirement of Quick Road-Made.

Description

A kind of underground coal mine steady boring device of base plate armature boring
Technical field
The present invention relates to a kind of drilling equipment, specifically one be applicable to underground coal mine roadway floor carries out anchor pole of holing The underground coal mine steady boring device of base plate armature boring of supporting, belongs to down-hole support equipment technical field.
Background technology
Due to the self-characteristic of different depth rock mass and the difference of residing ambient stress around tunnel, transported by geologic rhythm The factor impacts such as dynamic, ground water pressure, country rock easily produces Incoordinate deformation, exploits especially for underground coal mine, top, tunnel, the end Plate and two helps country rock to be deformed and move in tunnel, and the phenomenon that wherein roadway floor or gob floor upwards swell is i.e. Referred to as pucking, pucking is a kind of dynamic phenomenon often occurred in roadway, it and the character of country rock, mining influence, mining depth And geological structure etc. is directly related, some Floor Heave in Roadway amount of domestic mine even account for top, tunnel, the base plate amount of shifting near 70% with On, bigger particular for mining depth, have that stress is high, temperature is high, subsoil water hydraulic pressure is high, strength of turbulence is high, danger of burst The deep-seated setting of feature, high stress and soft rock mine roadway and the chambers such as height, creep is obvious, deformation is big, pucking makes roadway deformation, section become Little, drastically influence the links such as mine ventilation, transport and personnel's walking, restriction mine safety and high-yield and high-efficiency and produce.
Underground coal mine prevents the generation of pucking phenomenon from not only wanting reinforcement roadway support, reinforced design method, and will be according to specifically Wall rock geology condition take measures pucking amount is reduced to allowed band, generally use method for strengthening, destressing method, combination method and add Gu the methods such as tunnel side, angle reduce pucking phenomenon, wherein method for strengthening is to be enclosed base plate by raising floor rocks intensity or raising The supporting power of rock reaches the purpose of floor lift control, is a kind of the most frequently used pucking control method.
Improve the intensity of floor rocks, mainly have floor grouting, floor bolting etc., base plate is being used suspension roof support Needing during operation first to hole base plate, traditional method need to be with pin or reversely air leg support above drilling rod in boring procedure On back, to provide reverse holding power, but due in order to ensure that roadway floor does not destroys before installing anchor pole, it is necessary to Installing anchor pole in driving face certain distance, the size of this distance is relevant with the character of floor rock, typically should be little In 10 meters, the most unaffected in order to ensure tunnelling speed, the speed of usual rockbolt installation wants fast, and this traditional brill Hole method operation not only complicated, manpower and materials consume big, and hole and install the speed of anchor pole compared with slow, efficiency is low, inadaptable Requirement in Quick Road-Made.
Summary of the invention
For the problems referred to above, the present invention provides a kind of underground coal mine steady boring device of base plate armature boring, simple in construction, it is possible to Realize on the premise of reverse holding power is provided in boring procedure roadway floor quickly carries out drilling operation, and then overall raising Rockbolt installation speed, is adapted to the requirement of Quick Road-Made.
For achieving the above object, the steady boring device of this underground coal mine base plate armature boring include underframe, workpiece, added and Device positioning element；
Described added being fixedly mounted on underframe, underframe bottom is provided with roller；
Described workpiece is arranged on underframe, including body, front and back guide groove, front and back positioning and locking nut, a left side Right guide groove, left and right positioning and locking nut, rig installing rack and rig；Body is rectangle frame structure, and both ends of the surface are led to around Cross and be positioned at the cylindricality slip shoe frame of end face central authorities and be located at before and after fore-and-aft direction is arranged on underframe medial surface on guide groove, be provided with The end of the cylindricality piston shoes of screw thread is through guide groove front and back；Front and back positioning and locking nut coordinates with the end thread of cylindricality piston shoes And be pressed on the lateral surface of before and after's guide groove；Before and after rig installing rack, both ends of the surface are located at right and left by cylindricality slip shoe frame On the left and right guide groove being arranged on body medial surface, if the end of threaded cylindricality piston shoes guides logical through left and right Groove；Left and right positioning and locking nut coordinates with the end thread of cylindricality piston shoes and is pressed on the lateral surface of left and right guide groove；Institute The rig stated is vertically arranged and is arranged on rig installing rack；
Described device positioning element includes location, top supporting cylinder, bottom location supporting cylinder and control valve Group；Location, top supporting cylinder is set to four, and location, four tops supporting cylinder piston end sets up, cylinder body center Symmetrical being vertically fixedly mounted on added diagonally adjacent, its piston end end is provided with support footstock；Location, bottom supports liquid Cylinder pressure is set to four, and location, four bottoms supporting cylinder piston end is down-set, location, cylinder body corresponding top support hydraulic pressure Cylinder position is vertically fixedly mounted on the diagonally adjacent of underframe, and its piston end end is provided with support base；Control valve group is installed Underframe or added on, the outfan of control valve group is positioned by fluid pressure line and top location supporting cylinder and bottom respectively Supporting cylinder connects.
Scheme as a further improvement on the present invention, described underframe and added be all frame structure.
Scheme as a further improvement on the present invention, described underframe and/or added frame structure two sides are provided with Supporting rib stiffener arranged in a crossed manner.
Scheme as a further improvement on the present invention, positioning and locking nut and left and right positioning and locking spiral shell before and after described location Handle radially it is provided with on mother.
Scheme as a further improvement on the present invention, described before and after positioning and locking nut inner face with front and back guide logical Between inner face and the lateral surface of left and right guide groove of between the lateral surface of groove and left and right positioning and locking nut, ecto-entad depends on Secondary it is provided with spring washer and plain washer.
Compared with prior art, the steady boring device of this underground coal mine base plate armature boring is owing to being provided be arranged on underframe upper Frame, top location supporting cylinder and control valve group are arranged on added, and location, bottom supporting cylinder is arranged on underframe, Therefore being manipulated by valve group makes top location supporting cylinder and location, bottom supporting cylinder stretch out respectively, and top positions The support footstock of supporting cylinder acts against on top board, the support base of location, bottom supporting cylinder acts against and makes the end on base plate Frame forms stable rigid support between back and base plate, and during boring, the drilling rod of rig pierces the anti-work that base plate produces Firmly acting on underframe by rig installing rack, body, underframe is fixed by top location supporting cylinder and bottom by active force Position supporting cylinder directly acts on back and base plate, therefore need not above the drilling rod of rig with pin or reverse gas Lower limb is supported on back to provide reverse holding power；Owing to workpiece is provided with before and after's guide groove, front and back positioning and locking Nut, left and right guide groove, left and right positioning and locking nut, therefore have good positioning this underground coal mine steady boring device of base plate armature boring After can realize pinpointing a position and can complete the multiple rows of or operation in multiple row hole, i.e. can realize rig at front and back's guide groove Location boring is carried out with the bore position of all full lines in the guide groove stroke range of left and right and permutation；Due to body and underframe Between, be equipped with cylindricality piston shoes between rig installing rack and body, therefore can realize non-on fore-and-aft direction or left and right directions Perfectly level roadway floor carries out vertical drilling；This underground coal mine base plate armature boring steady boring device simple in construction, be prone to behaviour Work controls, and can carry out rockbolt installation after completing boring, holes and installs the speed of anchor pole, installation effectiveness height, being adapted to The requirement of Quick Road-Made, uses the Quick mounting anchor rod of floor bolting when being particularly well-suited to administer Floor Heave in Roadway.
Accompanying drawing explanation
Fig. 1 is the three dimensional structure schematic diagram of the present invention；
Fig. 2 is guide groove and the attachment structure schematic diagram of front and back positioning and locking nut before and after the present invention.
In figure: 1, underframe, 2, workpiece, 21, body, 22, front and back guide groove, 23, front and back positioning and locking nut, 24, left and right guide groove, 25, left and right positioning and locking nut, 26, rig installing rack, 27, rig, 3, added, 4, device location division Part, 41, location, top supporting cylinder, 42, location, bottom supporting cylinder, 43, control valve group.
Detailed description of the invention
The present invention will be further described below in conjunction with the accompanying drawings.
As it is shown in figure 1, the steady boring device of this underground coal mine base plate armature boring includes underframe 1, workpiece 2, added 3 and dress Put positioning element 4.
Described added 3 are fixedly mounted on underframe 1, and underframe 1 bottom is provided with roller.
Described workpiece 2 is arranged on underframe 1, including body 21, front and back guide groove 22, front and back positioning and locking spiral shell Mother 23, left and right guide groove 24, left and right positioning and locking nut 25, rig installing rack 26 and rig 27；Body 21 is rectangle frame knot Structure, both ends of the surface are located at fore-and-aft direction are arranged on underframe 1 medial surface by being positioned at the cylindricality slip shoe frame of end face central authorities around Front and back on guide groove 22, if the end of threaded cylindricality piston shoes is through guide groove 22 front and back, body 21 can pass through post Shape piston shoes movable or along cylindricality piston shoes axle center on front and back's guide groove 22 rotates and changes angle；As in figure 2 it is shown, it is front Rear positioning and locking nut 23 coordinates with the end thread of cylindricality piston shoes and is pressed on the lateral surface of before and after's guide groove 22, body 21 can realize fore-and-aft direction on underframe 1 and move by unclamping or screwing before and after's positioning and locking nut 23 or position；Rig is pacified Shelve both ends of the surface before and after 26 to be located at, by cylindricality slip shoe frame, the left and right that left and right directions is arranged on body 21 medial surface and guide logical On groove 24, if the end of threaded cylindricality piston shoes is through left and right guide groove 24, rig installing rack 26 can be sliding by cylindricality Boots move left and right on left and right guide groove 24 or along cylindricality piston shoes axle center rotate change angle；Left and right positioning and locking nut 25 coordinate with the end thread of cylindricality piston shoes and are pressed on the lateral surface of left and right guide groove 24, and rig installing rack 26 can lead to Cross and unclamp or screw left and right positioning and locking nut 25 and realize left and right directions on body 21 and move or position；Rig 27 is vertically arranged It is arranged on rig installing rack 26.
Described device positioning element 4 includes location, top supporting cylinder 41, bottom location supporting cylinder 42 and control Valve group 43 processed；Due to supporting cylinder be vertically arranged in support on the diagonal supporting leg of support body more firm, therefore top location Supporting cylinder 41 is set to four, and location, four tops supporting cylinder 41 piston end sets up, cylinder body centrosymmetry erects Directly be fixedly mounted on added 3 diagonally adjacent, its piston end end is provided with support footstock；Location, bottom supporting cylinder 42 Being set to four, location, four bottoms supporting cylinder 42 piston end is down-set, location, cylinder body corresponding top supporting cylinder 41 positions are vertically fixedly mounted on the diagonally adjacent of underframe 1, and its piston end end is provided with support base；Control valve group 43 is pacified Be contained on underframe 1 or added 3, the outfan of control valve group 43 respectively by fluid pressure line and top location supporting cylinder 41 and Location, bottom supporting cylinder 42 connects.
This underground coal mine steady boring device of base plate armature boring is placed on and need to incite somebody to action after carrying out on the roadway floor of base plate boring The input of control valve group 43 is connected with work surface hydraulic power unit by fluid pressure line, and then operation control valve group 43 makes top fixed Position supporting cylinder 41 and location, bottom supporting cylinder 42 stretch out respectively, the support footstock top of location, top supporting cylinder 41 Lean against on top board, the support base of location, bottom supporting cylinder 42 acts against and makes underframe 1 at back and base plate on base plate Between form rigid support, then unclamp before and after's positioning and locking nut 23 and left and right positioning and locking nut 25, mobile body 21 to Positioning and locking nut 23, then mobile drill installing rack 26 to left and right directions before and after locking after needing the position of boring on fore-and-aft direction On lock left and right positioning and locking nut 25 behind the position that need to hole, rig 27, the most just to bore position, starts rig 27 and bores Hole, the arranging of cylindricality piston shoes can realize on fore-and-aft direction or left and right directions non-fully the roadway floor of level hang down Straight boring, during boring, the drilling rod of rig 27 is pierced the counteracting force that base plate produces and is acted on by rig installing rack 26, body 21 In underframe 1, active force is directly acted on by underframe 1 by top location supporting cylinder 41 and location, bottom supporting cylinder 42 Back and base plate；It is drilled first Kong Houke and directly unclamps before and after's positioning and locking nut 23 or left and right positioning and locking nut 25 Carry out the bore position on fore-and-aft direction or left and right directions and adjust the drilling operation realizing a row or string.
In order to alleviate the overall weight of whole device so that moving, scheme as a further improvement on the present invention, described Underframe 1 and added 3 be all frame structure.
In order to increase the integrated support intensity of this equipment, scheme as a further improvement on the present invention, described underframe 1 And/or the frame structure two sides of added 3 are provided with supporting rib stiffener arranged in a crossed manner.
In order to realize positioning and locking nut 23 and location, left and right before and after not using additional means quickly to screw or unclamping location Locking nut 25, as a further improvement on the present invention scheme, positioning and locking nut 23 and location, left and right before and after described location Handle radially it is provided with, before and after can realizing manually quickly screwing or unclamping location by rotary handle on locking nut 25 Positioning and locking nut 23 and left and right positioning and locking nut 25.
In order to prevent before and after the location after screwing positioning and locking nut 23 and left and right positioning and locking nut 25 at boring procedure Middle loosen because of vibration, scheme as a further improvement on the present invention, described before and after positioning and locking nut 23 inner face with Between the lateral surface of the guide groove 22 and outside of inner face and left and right guide groove 24 of left and right positioning and locking nut 25 front and back Between face, ecto-entad is sequentially provided with spring washer and plain washer.
The steady boring device of this underground coal mine base plate armature boring is owing to being provided with added 3 be arranged on underframe 1, and location, top is propped up Support hydraulic cylinder 41 and control valve group 43 are arranged on added 3, and location, bottom supporting cylinder 42 is arranged on underframe 1, therefore Being manipulated by valve group 43 makes top location supporting cylinder 41 and location, bottom supporting cylinder 42 stretch out respectively, and top is fixed The support footstock of position supporting cylinder 41 acts against on top board, the support base of location, bottom supporting cylinder 42 acts against base plate On make underframe 1 form stable rigid support between back and base plate, during boring, the drilling rod of rig 27 pierces base plate The counteracting force produced acts on underframe 1 by rig installing rack 26, body 21, and active force is propped up by underframe 1 by location, top Support hydraulic cylinder 41 and location, bottom supporting cylinder 42 directly act on back and base plate, therefore need not at rig 27 It is supported on back to provide reverse holding power with pin or reverse air leg above drilling rod；Before being provided with due to workpiece 2 Rear guide groove 22, front and back positioning and locking nut 23, left and right guide groove 24, left and right positioning and locking nut 25, therefore by this coal The steady boring device of mine lower shoe armature boring can realize pinpointing a position and can complete multiple rows of or multiple row hole after having good positioning Operation, i.e. can realize the rig 27 all full lines in front and back's guide groove 22 and left and right guide groove 24 stroke range and whole The bore position of row carries out location boring；Owing between body 21 and underframe 1, being equipped with between rig installing rack 26 and body 21 Cylindricality piston shoes, therefore can realize on fore-and-aft direction or left and right directions non-fully the roadway floor of level carry out vertical drilling； This underground coal mine base plate armature boring steady boring device simple in construction, easily operated control, can carry out anchor pole peace after completing boring Dress, holes and installs the speed of anchor pole, installation effectiveness height, being adapted to the requirement of Quick Road-Made, be particularly well-suited to tunnel The Quick mounting anchor rod of floor bolting is used when pucking is administered.

Claims (5)

1. the steady boring device of underground coal mine base plate armature boring, including rig (27), it is characterised in that also include underframe (1), Workpiece (2), added (3) and device positioning element (4)；
Described added (3) are fixedly mounted on underframe (1), and underframe (1) bottom is provided with roller；
Described workpiece (2) is arranged on underframe (1), including body (21), front and back guide groove (22), front and back positioning lock Jack panel (23), left and right guide groove (24), left and right positioning and locking nut (25), rig installing rack (26) and rig (27)；This Body (21) is rectangle frame structure, and both ends of the surface are located at fore-and-aft direction are arranged on by being positioned at the cylindricality slip shoe frame of end face central authorities around Before and after on underframe (1) medial surface on guide groove (22), if the end of threaded cylindricality piston shoes is through guide groove front and back (22)；Front and back positioning and locking nut (23) coordinates with the end thread of cylindricality piston shoes and is pressed on outside before and after's guide groove (22) On side；Before and after rig installing rack (26), both ends of the surface are located at left and right directions by cylindricality slip shoe frame and are arranged on body (21) inner side On left and right guide groove (24) on face, if the end of threaded cylindricality piston shoes is through left and right guide groove (24)；Left and right is fixed Position locking nut (25) coordinates with the end thread of cylindricality piston shoes and is pressed on the lateral surface of left and right guide groove (24)；Described Rig (27) be vertically arranged and be arranged on rig installing rack (26)；
Described device positioning element (4) include top location supporting cylinder (41), bottom location supporting cylinder (42) and Control valve group (43)；Location supporting cylinder, top (41) is set to four, location, four tops supporting cylinder (41) piston End sets up, cylinder body centrosymmetry is vertically fixedly mounted on the diagonally adjacent of added (3), and its piston end end is provided with props up Support seat；Location supporting cylinder, bottom (42) is set to four, and location, four bottoms supporting cylinder (42) piston end is downward Arrange, supporting cylinder (41) position, location, cylinder body correspondence top is vertically fixedly mounted on the diagonally adjacent of underframe (1), its Piston end end is provided with support base；Control valve group (43) is arranged on underframe (1) or added (3), control valve group (43) defeated Go out end to be connected with location supporting cylinder, top (41) and location supporting cylinder, bottom (42) by fluid pressure line respectively.
The underground coal mine steady boring device of base plate armature boring the most according to claim 1, it is characterised in that described underframe And added (3) are all frame structures (1).
The underground coal mine steady boring device of base plate armature boring the most according to claim 2, it is characterised in that described underframe And/or the frame structure two sides of added (3) are provided with supporting rib stiffener arranged in a crossed manner (1).
4. according to the underground coal mine steady boring device of base plate anchor pole described in claim 1 or 2 or 3, it is characterised in that described location Front and back radially it is provided with handle on positioning and locking nut (23) and left and right positioning and locking nut (25).
5. according to the underground coal mine steady boring device of base plate anchor pole described in claim 1 or 2 or 3, it is characterised in that before and after described Between the lateral surface of the inner face of positioning and locking nut (23) and front and back guide groove (22) and left and right positioning and locking nut (25) Inner face and the lateral surface of left and right guide groove (24) between ecto-entad be sequentially provided with spring washer and plain washer.
CN201610617871.7A 2016-07-30 2016-07-30 A kind of underground coal mine steady boring device of base plate armature boring Pending CN106150367A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610617871.7A CN106150367A (en) 2016-07-30 2016-07-30 A kind of underground coal mine steady boring device of base plate armature boring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610617871.7A CN106150367A (en) 2016-07-30 2016-07-30 A kind of underground coal mine steady boring device of base plate armature boring

Publications (1)

Publication Number Publication Date
CN106150367A true CN106150367A (en) 2016-11-23

Family

ID=57328282

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610617871.7A Pending CN106150367A (en) 2016-07-30 2016-07-30 A kind of underground coal mine steady boring device of base plate armature boring

Country Status (1)

Country Link
CN (1) CN106150367A (en)

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Application publication date: 20161123