CN203223239U - Roadway advance timbering support used for assisting machine to move - Google Patents

Roadway advance timbering support used for assisting machine to move Download PDF

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Publication number
CN203223239U
CN203223239U CN 201320238150 CN201320238150U CN203223239U CN 203223239 U CN203223239 U CN 203223239U CN 201320238150 CN201320238150 CN 201320238150 CN 201320238150 U CN201320238150 U CN 201320238150U CN 203223239 U CN203223239 U CN 203223239U
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CN
China
Prior art keywords
support
moves
advance timbering
mechanical arm
advance
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Withdrawn - After Issue
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CN 201320238150
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Chinese (zh)
Inventor
曹树祥
曹伟
王文元
邱洋
杨宏光
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Liaoning Tian'an Technology Co., Ltd.
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LIAONING TIAN'AN MINING TECHNOLOGY Co Ltd
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Priority to CN 201320238150 priority Critical patent/CN203223239U/en
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Publication of CN203223239U publication Critical patent/CN203223239U/en
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Abstract

The utility model relates to a roadway advance timbering support used for assisting a machine to move. The roadway advance timbering support solves the problem of a repeatedly-supported roof, complex operation, low operation efficiency and the like of watery coal top roadways and long-time advance timbering roadways in the prior art. The roadway advance timbering support comprises an advance timbering support bodies formed by top beams, bases and hydraulic stand columns and a moving assisting mechanism. The roadway advance timbering support is characterized in that the lower portions of the two hydraulic stand columns hinged to the bases are fixed together through a fastening frame, a roof protective plate is hinged to the lateral end of each top beam through a stretchy hydraulic cylinder, every two advance timbering support bodies are transversely arranged into one set in parallel, a plurality of sets of the advance timbering support bodies are respectively, longitudinally and continuously arranged along a roadway, and therefore timbering supporting on the roof plate can be formed. A support moving mechanical arm is arranged between the two advance timbering support bodies in the set to be moved, and the support moving mechanical arm is matched with a transport cart to longitudinally and sequentially move each advance timbering support body along the roadway. The roadway advance timbering support is reasonable in structural design, stable in timbering, convenient to operate and safe in use, and reduces influences of the advance timbering operation on coal mining production on the working face.

Description

The lame advanced supporting rack that Aided Machine moves
Technical field
The utility model relates to a kind of advanced stand device for the operation of fully-mechanized mining working tunnel safety, particularly a kind of for operate as normal face mining operations the time, in roadway workface, carry out tunnel leading section supporting, and the lame advanced supporting rack that moves of the Aided Machine that can move forward with the propelling of working face mining.Belong to mining machinery manufacturing and application.
Background technology
U-shaped steel, i iron metallic support are mainly adopted in the supporting in fully-mechanized mining working tunnel, the mode of anchor pole, anchor net and other combined supportings, along with the continuous propelling of coal-face, tunnel leading section pressure reach is so need add strong supporting in the leading section of work plane outlet.In the stope of coal mines operation of modern fully-mechanized mining, if the situation that the leading pressure of ubiquity is bigger can not effective support, not only influences work plane coal mining efficient, and may cause bigger potential safety hazard; According to the regulation of the corresponding rules of country, in 20 meters scopes of ahead work face, must add strong supporting.Lame advanced supporting is exactly in order to prevent ahead work face bearing pressure and the along inclined direction superposition of bearing pressure and the deformation of the surrounding rock in tunnel, movement, the destruction that cause, employed support pattern.
Many collieries widely used coal-face lame advanced supporting mode, mostly be the support pattern of hydraulic prop complexed metal articulated roof beam or long girder steel, the limitation of this class support pattern is: supporting intensity is low, easily cause crushing of place, work plane emergency exit, the secondary that causes country rock is loosening, destroys the globality of rock stratum, tunnel; Install and to remove post slow, be difficult to realize that significantly speed promotes, restricted the fltting speed of work plane; Supporting efficient is low, complex procedures, and manual steps is more, and operating personnel's labour intensity is big, and to the work plane of roof cracking, prop drawing and recovery girder steel are all very difficult, have increased many potential safety hazards.
At present, carry out the limitation that lame advanced supporting exists at hydraulic prop complexed metal articulated roof beam, and by a large amount of practices and with the exchange of technology in mining area, have and in roadway workface, use forepoling hydraulic support to carry out the supporting of the leading section in tunnel, report with the patent that replaces traditional support pattern, as: publication number is " a kind of coal mine down-hole splited articulated look ahead supporting support " of CN101182780A, notification number be CN2828315Y's " coal mine fully-mechanized mining haulage drift saddle ride type advance support rack ", notification number be CN2833112Y's " coal mine fully-mechanized mining return aircourse combined type advance support rack ", notification number be CN200952403Y's " coal mine work area crossheading forepoling hydraulic support ", and notification number is the patents such as " the lame advanced supporting rack groups of inclined roof panels " of CN201190570Y.The problem that also has the inventor once to exist at prior art is " lame advanced supporting rack " of CN200985799Y, the patents such as " tunnel ahead support stents " that notification number is CN201386567Y at the notification number of first to file.The forepoling hydraulic support of above-mentioned these patent records is the frame of taking a step to move that carries out support by manual operation hydraulic control valve group mostly, realizes the mechanization of coal-face lame advanced supporting, finishes the innovation of coal-face advance support form.But, because this dependence moves the moving manner of the advance support rack that the push-and-pull of frame hydraulic cylinder moves, for tunnel, softer coal top, particularly grow tunnel apart from advance support for need, the track of walking is difficult to guarantee, so be prone to phenomenons such as support tilt and holding.All need each group advance support rack is fallen frame, reach successively, rises frame one time because move frame at every turn, so exist top board is supported repeatedly, advancing velocity is slow, complex operation, the low deficiency that waits of operating efficiency, therefore, the moving manner of existing advance support rack lacks applicability.
The utility model content
The purpose of this utility model provides the lame advanced supporting rack that a kind of Aided Machine moves, solved prior art for softer tunnel, coal top, long tunnel apart from advance support exist to top board support repeatedly, advancing velocity slowly, problem such as complex operation, operating efficiency be low, its reasonable in design, supporting is stable, easy to operate, use safety, can adapt to on-the-spot actual use needs, reduce the influence that the advance support operation is mined and produced work plane, be conducive to the further lifting of coal-face per unit area yield.
The technical scheme that the utility model adopts is: the lame advanced supporting rack that this Aided Machine moves comprise by back timber, base and be hinged on back timber and base between the hydraulic vertical prop advance support rack and the auxiliary moving mechanism that constitute, its technical essential is: two hydraulic vertical prop bottoms on the described base are fixed together by fastening frame, the back timber side utilizes telescopic hydraulic cylinder to be hinged with and protects top board, two advance support racks laterally are listed as one group, many group advance support racks are vertically arranged continuously along the tunnel respectively, form the support supporting to top board; Auxiliary moving mechanism comprises and moves frame mechanical arm and transport vehicle, move the frame mechanical arm arrangements between two advance support racks treating one group of movement, and with the driving that moves the transport vehicle that the frame mechanical arm matches under, along the tunnel vertically, mobile every the advance support rack of order.
The described frame mechanical arm that moves comprises fixed pedestal, transmission mechanism, rotating driving device, the rotation seat of bottom and is arranged on lifting fairlead, lifting hydraulic cylinder, lifting guide pillar, cantilever guide peg, boom cylinder, cantilever telescopic, support seat and support hydraulic vertical prop on the rotation seat; And by rotating driving device and the center rotation around the shaft of transmission mechanism driving rotation seat.
Described transmission mechanism is made of intermeshing large and small gear, gear wheel is assembled in the bottom of rotation seat, pinion is assembled on the output shaft of rotating driving device, and bottom and the fixed pedestal of rotating driving device fit together, and rotation seat is connected with fixed pedestal by rotating shaft; By the rotating driving device drive transmission device, thereby drive the center rotation around the shaft of whole rotation seat.
The application of the lame advanced supporting rack that above-mentioned Aided Machine moves, its technical essential is: the frame mechanical arm arrangements of moving of auxiliary moving mechanism is being treated between two advance support racks of mobile one group, and with the driving that moves the transport vehicle that the frame mechanical arm matches under,, order vertical along the tunnel moves to the front portion, tunnel every advance support rack away from the stope end, the concrete operations step is as follows:
Step 1, driving transport vehicle drives and moves the frame mechanical arm and move to rear portion, tunnel stope one end and need move forward between two advance support racks of one group, rise moves the support hydraulic vertical prop of frame mechanical arm, the support seat that is hinged on top is contacted with back form support; Stretching out the boom cylinder driving cantilever telescopic that moves the frame mechanical arm stretches out, the hydraulic vertical prop of an advance support rack of the need of cantilever telescopic one side reach is regained, when making this back timber decline, drive telescopic hydraulic cylinder and regain the top board that protects that is hinged on the back timber end, and stretch out the top board that protects of the anterior adjacent advance support frame of frame therewith immediately, with supporting because falling the top board of the interim exposure of frame; When back timber drops to when contacting with the cantilever telescopic that moves the frame mechanical arm, stop to descend, stretch out the lifting hydraulic cylinder that moves the frame mechanical arm this moment, drive lifting guide pillar and rise together with cantilever guide peg, cantilever telescopic, the advance support rack that falls frame is lifted; Drive boom cylinder and regain the cantilever telescopic, make advance support rack move to the rotation seat top, the advance support rack that drives again on the lifting hydraulic cylinder withdrawal lifting guide pillar drive cantilever telescopic is fallen on the rotation seat, regain the support hydraulic vertical prop, the support seat that is hinged on top is separated with back;
Step 2 drives the transport vehicle drive and moves the frame mechanical arm together with the advance support rack that is recovered on the rotation seat, after moving into place away from the stope end to the front portion, tunnel, begins to place advance support rack; Rise the support hydraulic vertical prop that moves the frame mechanical arm earlier, the support seat that is hinged on top is contacted with back form support, stretch out lifting hydraulic cylinder again, drive lifting guide pillar together with the cantilever telescopic, advance support rack is lifted leave rotation seat; Drive boom cylinder and stretch out the cantilever telescopic, advance support rack is reached top, supporting position, regain lifting hydraulic cylinder this moment drops on the roadway floor advance support rack on the cantilever telescopic, and the hydraulic vertical prop of the advance support rack that moves into place risen, this back timber is risen and contact with back, form effectively and support; Drive boom cylinder and regain the cantilever telescopic, regain the support hydraulic vertical prop simultaneously, the support seat that is hinged on top is separated with back; Drive rotating driving device and transmission mechanism and make the rotation seat center Rotate 180 degree around the shaft that moves the frame mechanical arm, for a mobile other advance support rack that is arranged in juxtaposition is prepared;
Step 3, the drive of driving transport vehicle moves the frame mechanical arm and moves to the rear portion, tunnel, the operation of repeating step one, step 2, to move to anterior corresponding position, tunnel with other that the advance support rack that moves before is arranged in juxtaposition, finish the reach with the working face mining propelling of one group of advance support rack;
According to the above-mentioned steps cycling, can utilize auxiliary moving mechanism, the advance support rack of respectively organizing that constantly will be arranged in the rear portion, tunnel moves to the front portion, tunnel by frame, with the propelling of the normal mining operations of work plane, realizes the continuous supporting of the leading section in tunnel in the tunnel.
Advantage and the good effect that the utlity model has are: because the utility model adopts and to move the mode that the frame mechanical arm cooperates with transport vehicle and constitute auxiliary moving mechanism, come to by back timber, base and be hinged on back timber and base between the advance support rack that laterally is arranged in juxtaposition formed of hydraulic vertical prop move frame, so its reasonable in design, supporting is stable, simple to operation, safe and reliable, avoid the support repeatedly to top board.In addition, because each advance support rack has been cancelled traditional quadric chain, change into using the mode that fastening frame cooperates hydraulic vertical prop and back timber, base formation lifting structure is set on the base, make that the volume of the advance support rack that this design is unique is less, weight is lighter, length is shorter, can adapt to on-the-spot actual use needs, be convenient to realize by moving the moving manner that the frame mechanical arm cooperates with transport vehicle, reduce the influence that the advance support operation is mined and produced work plane, meet the equipment mounting, commissioning and maintenance condition of fully-mechanized mining working.Under guaranteeing the narrow tunnel condition in down-hole in the required safe pedestrian space, realize mechanization advance support that top board is supported continuously being conducive to safe, the highly efficient and productive production of coal-face according to different geological conditionss and drift section shape.Therefore, the utility model solved prior art for softer tunnel, coal top, long tunnel apart from advance support exist to top board support repeatedly, advancing velocity slowly, problem such as complex operation, operating efficiency be low.
Description of drawings
Fig. 1 is a kind of concrete structure schematic diagram of the present utility model;
Fig. 2 is the vertical view that moves parts such as frame mechanical arm, fastening frame and base among Fig. 1;
Fig. 3 is that Fig. 1 is along the sectional view of A-A line;
Fig. 4 is the vertical view that moves the frame mechanical arm among Fig. 3;
Fig. 5 is that Fig. 4 is along the sectional view of B-B line.
Sequence number explanation among the figure: 1 back timber, 2 hydraulic vertical props, 3 protect top board, 4 telescopic hydraulic cylinders, 5 move frame mechanical arm, 6 fastening frames, 7 bases, 8 transport vehicles, 9 rotation seats, 10 lifting fairleads, 11 lifting guide pillars, 12 support seats, 13 cantilever telescopics, 14 cantilever guide pegs, 15 fixed pedestals, 16 rotating driving devices, 17 transmission mechanisms, 18 lifting hydraulic cylinders, 19 support hydraulic vertical props, 20 boom cylinders.
The specific embodiment
Describe concrete structure of the present utility model in detail according to Fig. 1～5.The lame advanced supporting rack that this Aided Machine moves comprises parts such as the advance support rack that is made of back timber 1, base 7, hydraulic vertical prop 2 and auxiliary moving mechanism.The bottom that wherein is hinged on two hydraulic vertical props 2 on the base 7 is fixed together by fastening frame 6; Back timber 1 side that is hinged on hydraulic vertical prop 2 tops utilizes telescopic hydraulic cylinder 4 to be hinged with and protects top board 3, constitute an advance support rack.Two advance support racks laterally are listed as one group, organize advance support rack more and vertically arrange continuously along the tunnel respectively, form the support supporting to top board.
Auxiliary moving mechanism is by moving frame mechanical arm 5 and transport vehicle 8 constitutes.Move frame mechanical arm 5 lateral arrangement between two advance support racks treating one group of movement, with the driving that moves the transport vehicle 8 that frame mechanical arm 5 matches under, along the tunnel vertically, mobile every the advance support rack of order moves away from the stope end to the front portion, tunnel.
Moving frame mechanical arm 5 mainly comprises: the fixed pedestal 15 of bottom, transmission mechanism 17, rotating driving device 16, rotation seat 9 and be arranged on parts such as lifting fairlead 10, lifting hydraulic cylinder 18, lifting guide pillar 11, cantilever guide peg 14, boom cylinder 20, cantilever telescopic 13, support seat 12 and support hydraulic vertical prop 19 on the rotation seat 9.Transmission mechanism 17 is made of intermeshing large and small gear, and gear wheel is assembled in the bottom of rotation seat 9, and pinion is assembled on the output shaft of rotating driving device 16.The bottom of rotating driving device 16 and fixed pedestal 15 fit together.Rotation seat 9 is connected with fixed pedestal 15 by rotating shaft; By rotating driving device 16 drive transmission devices 17, thereby drive the center rotation around the shaft of whole rotation seat 9.Lifting fairlead 10 bottoms are fixed on the rotation seat 9, and inside is provided with lifting guide pillar 11 bottoms of lifting hydraulic cylinder 18 and inserts in the lifting fairlead 10 lifting guide pillar 11 tops and cantilever guide peg 14 vertical fixing.The lower end of lifting hydraulic cylinder 18 is hinged on the bottom of lifting fairlead 10, the upper end of lifting hydraulic cylinder 18 is hinged on the inwall of lifting guide pillar 11, and drive lifting guide pillars 11 by lifting hydraulic cylinder 18 and move back and forth along lifting fairlead 10 inner chambers, realize the lifting that moves frame mechanical arm 5.Cantilever telescopic 13 is sleeved on the outside of cantilever guide peg 14, and an end of boom cylinder 20 is hinged on cantilever guide peg 14 roots with lifting guide pillar 11 vertical fixing, and the other end is hinged on cantilever telescopic 13 front portions.Boom cylinder 20 drives cantilever telescopics 13 length directions along cantilever guide peg 14 and moves back and forth, and realizes moving the stretching out and regain of cantilever telescopic 13 of frame mechanical arm 5.Support hydraulic vertical prop 19 bottoms are fixed on the rotation seat 9, and the top that is hinged with support seat 12 is fixed on the sidewall of lifting fairlead 10.
During lame advanced supporting rack operation that this Aided Machine moves, the frame mechanical arm 5 that moves of auxiliary moving mechanism is arranged between two advance support racks treating mobile one group, and with the driving that moves the transport vehicle 8 that frame mechanical arm 5 matches under, along the tunnel vertically, order moves to the front portion, tunnel every advance support rack away from the stope end.The acquiescence original state is: hydraulic vertical prop 2 rises, and supports advance support rack, the supporting that the back timber 1 by hydraulic vertical prop 2 tops forms back.Near on one group of advance support rack of work plane end, telescopic hydraulic cylinder 4 is for stretching out state, and the top board 3 that protects that is hinged on back timber 1 end reaches the supporting position; And the telescopic hydraulic cylinder 4 on all the other group advance support rack back timbers all is in retracted state, and the top board 3 that protects that is hinged on back timber 1 end is regained.The lifting hydraulic cylinder 18, support hydraulic vertical prop 19, the boom cylinder 20 that move on the frame mechanical arm 5 all are in retracted state.
When advance support rack moved frame to the front portion, tunnel away from the stope end, the concrete operations step was as follows:
Step 1, driving transport vehicle 8 drives and moves frame mechanical arm 5 and move to the rear portion, tunnel and close on stope one end and need move forward between two advance support racks of one group, the support hydraulic vertical prop 19 that moves frame mechanical arm 5 rises, the support seat 12 of its upper articulation is contacted with back form and support, guarantee whole stability of moving in the frame mechanical arm course of action.Stretch out the boom cylinder 20 that moves frame mechanical arm 5, drive cantilever telescopic 13 and stretch out.The hydraulic vertical prop 2 of an advance support rack of the need of cantilever telescopic 13 1 sides reach is regained, when making back timber 1 decline of this advance support rack, the telescopic hydraulic cylinder 4 that drives this regain back timbers 1 end hinged protect top board 3, and stretch out the anterior adjacent support frame of advance support rack therewith immediately protect top board 3, with supporting because falling the top board of the interim exposure of frame.When back timber 1 drops to when moving the cantilever telescopic 13 contacted positions of frame mechanical arm 5, stop to descend, stretch out the lifting hydraulic cylinder 18 that moves frame mechanical arm 5 this moment, rise together with cantilever guide peg 14, cantilever telescopic 13 thereby drive lifting guide pillar 11, the advance support rack that falls frame is risen.Drive boom cylinder 20, regain cantilever telescopic 13, advance support rack is moved to rotation seat 9 directions, after advance support rack moves to rotation seat 9 tops, drive lifting hydraulic cylinder 18 again, the advance support rack of regaining on the lifting guide pillar 11 drive cantilever telescopics 13 is fallen on the rotation seat 9.Regain support hydraulic vertical prop 19, the support seat 12 of its upper articulation is separated with back.
Step 2 drives transport vehicle 8 drives and moves frame mechanical arm 5 together with the advance support rack that is recovered on its rotation seat 9, moves away from the stope end to the front portion, tunnel.When moving to the appropriate location in anterior need supporting zone, tunnel, rise the support hydraulic vertical prop 19 that moves frame mechanical arm 5 earlier, the support seat 12 of its upper articulation is contacted with back form and support, stretch out lifting hydraulic cylinder 18 again, drive lifting guide pillar 11 together with cantilever telescopic 13, advance support rack is lifted, leave rotation seat 9.Drive boom cylinder 20, stretch out cantilever telescopic 13, advance support rack is reached top, supporting position, regain lifting hydraulic cylinder 18 this moment, advance support rack on the cantilever telescopic 13 is dropped on the roadway floor, hydraulic vertical prop 2 with the advance support rack that moves into place rises then, the back timber 1 of this advance support rack is risen and contacts with back, forms effectively and supports.Drive boom cylinder 20, regain cantilever telescopic 13, regain support hydraulic vertical prop 19 simultaneously, the support seat 12 of its upper articulation is separated with back.Drive rotating driving device 16 and transmission mechanism 17, make the rotation seat 9 center Rotate 180 degree around the shaft that moves frame mechanical arm 5, for a mobile other advance support rack that is arranged in juxtaposition is prepared.
Step 3,8 drives of driving transport vehicle move frame mechanical arm 5 and move to the rear portion, tunnel, repeat the operation of above-mentioned steps one, step 2, to move to anterior corresponding position, tunnel with the other advance support rack that the advance support rack that moves before is arranged in juxtaposition, finish the reach with the working face mining propelling of one group of advance support rack.
Exploitation propelling along with work plane, according to the above-mentioned steps cycling, can utilize auxiliary moving mechanism, the advance support rack of respectively organizing that constantly will be arranged in the rear portion, tunnel moves to the front portion, tunnel, realizes the continuous effective supporting to the leading section in tunnel in normal mining operations tunnel.

Claims (3)

1. lame advanced supporting rack that Aided Machine moves, comprise by back timber, base and be hinged on back timber and base between the hydraulic vertical prop advance support rack and the auxiliary moving mechanism that constitute, it is characterized in that: two hydraulic vertical prop bottoms on the described base are fixed together by fastening frame, the back timber side utilizes telescopic hydraulic cylinder to be hinged with and protects top board, two advance support racks laterally are listed as one group, many group advance support racks are vertically arranged continuously along the tunnel respectively, form the support supporting to top board; Auxiliary moving mechanism comprises and moves frame mechanical arm and transport vehicle, move the frame mechanical arm arrangements between two advance support racks treating one group of movement, and with the driving that moves the transport vehicle that the frame mechanical arm matches under, along the tunnel vertically, mobile every the advance support rack of order.
2. the lame advanced supporting rack that moves of Aided Machine according to claim 1 is characterized in that: the described frame mechanical arm that moves comprises fixed pedestal, transmission mechanism, rotating driving device, the rotation seat of bottom and is arranged on lifting fairlead, lifting hydraulic cylinder, lifting guide pillar, cantilever guide peg, boom cylinder, cantilever telescopic, support seat and support hydraulic vertical prop on the rotation seat; And by rotating driving device and the center rotation around the shaft of transmission mechanism driving rotation seat.
3. the lame advanced supporting rack that moves of Aided Machine according to claim 2, it is characterized in that: described transmission mechanism is made of intermeshing large and small gear, gear wheel is assembled in the bottom of rotation seat, pinion is assembled on the output shaft of rotating driving device, bottom and the fixed pedestal of rotating driving device fit together, and rotation seat is connected with fixed pedestal by rotating shaft; By the rotating driving device drive transmission device, thereby drive the center rotation around the shaft of whole rotation seat.
CN 201320238150 2013-05-06 2013-05-06 Roadway advance timbering support used for assisting machine to move Withdrawn - After Issue CN203223239U (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103216252A (en) * 2013-05-06 2013-07-24 辽宁天安矿山科技有限公司 Roadway advanced supporting supports capable of assisting machinery to move
CN103939121A (en) * 2014-05-07 2014-07-23 中煤北京煤矿机械有限责任公司 Large-step-pitch along-roof walking single column support set
CN105909296A (en) * 2015-02-20 2016-08-31 玛珂系统分析和开发有限公司 Method and an apparatus for determining a swing position of a front auxiliary top beam
CN107542482A (en) * 2017-10-27 2018-01-05 沈阳天安科技股份有限公司 Cherry coal tunnels U-shaped canopy mechanization installation shield ejection device
CN108222992A (en) * 2018-02-08 2018-06-29 中煤北京煤矿机械有限责任公司 Leading chock for drift equipped with big magnification cylindricality stabilizing mechanism
CN110426016A (en) * 2019-07-30 2019-11-08 精英数智科技股份有限公司 A kind of alignment householder method and system for moving frame for fully-mechanized mining working surface hydraulic support

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103216252A (en) * 2013-05-06 2013-07-24 辽宁天安矿山科技有限公司 Roadway advanced supporting supports capable of assisting machinery to move
CN103939121A (en) * 2014-05-07 2014-07-23 中煤北京煤矿机械有限责任公司 Large-step-pitch along-roof walking single column support set
CN103939121B (en) * 2014-05-07 2017-06-06 中煤北京煤矿机械有限责任公司 Big step pitch is along top step type single-column supporting group
CN105909296A (en) * 2015-02-20 2016-08-31 玛珂系统分析和开发有限公司 Method and an apparatus for determining a swing position of a front auxiliary top beam
CN105909296B (en) * 2015-02-20 2019-01-18 玛珂系统分析和开发有限公司 Method and apparatus for the swing position of auxiliary top beam before determining
CN107542482A (en) * 2017-10-27 2018-01-05 沈阳天安科技股份有限公司 Cherry coal tunnels U-shaped canopy mechanization installation shield ejection device
CN108222992A (en) * 2018-02-08 2018-06-29 中煤北京煤矿机械有限责任公司 Leading chock for drift equipped with big magnification cylindricality stabilizing mechanism
CN110426016A (en) * 2019-07-30 2019-11-08 精英数智科技股份有限公司 A kind of alignment householder method and system for moving frame for fully-mechanized mining working surface hydraulic support

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Owner name: LIAONING TIAN AN TECHNOLOGY CO., LTD.

Free format text: FORMER NAME: LIAONING TIAN AN MINING TECHNOLOGY CO., LTD.

CP01 Change in the name or title of a patent holder

Address after: 113122 Liaoning Province, Fushun City Binhe Road Economic Development Zone No. 15

Patentee after: Liaoning Tian'an Technology Co., Ltd.

Address before: 113122 Liaoning Province, Fushun City Binhe Road Economic Development Zone No. 15

Patentee before: Liaoning Tian'an Mining Technology Co., Ltd.

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Granted publication date: 20131002

Effective date of abandoning: 20150121

RGAV Abandon patent right to avoid regrant