CN103195457A - Supporting method for roadway fully-mechanized drivage operation without withdrawal of roadheader - Google Patents
Supporting method for roadway fully-mechanized drivage operation without withdrawal of roadheader Download PDFInfo
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- CN103195457A CN103195457A CN2013101290473A CN201310129047A CN103195457A CN 103195457 A CN103195457 A CN 103195457A CN 2013101290473 A CN2013101290473 A CN 2013101290473A CN 201310129047 A CN201310129047 A CN 201310129047A CN 103195457 A CN103195457 A CN 103195457A
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Abstract
The invention relates to a supporting method for a roadway fully-mechanized drivage operation without withdrawal of a roadheader, aiming to solve the problems of bad safe reliability and complex operating processes of conventional roadway fully-mechanized drivage operations with withdrawal of roadheaders. The supporting method includes providing temporary supporting for a new roof exposed in the roadway fully-mechanized drivage operation by an associated operation with the roadheader, and performing a supporting operation of laying metal nets and steel belts on a roadhead by a roadway drivage alternating supporting device; performing a permanent supporting operation of punching anchor rods on the roof and two sides of the roadway in a roadway zone behind the roadheader by a movable roof bolter supporting platform; and conveying coal cut by the roadheader through a bridge reversed loader and a belt conveyer. The process design is reasonable; supporting and moving is stable; a roadway empty operation is avoided; supporting is safe and reliable; the conventional operation method that the roadheader is needed to be withdrawn in each step and operation procedures are alternated frequently is changed, so that the roadheader can drivage continuously without being withdrawn. Synchronous mechanical operation of drivage and permanent supporting can be realized, and utilization rate and drivage efficiency of the roadheader can be increased remarkably.
Description
Technical field
The present invention relates to a kind of supporting method of underworkings excavation operation, a kind of tunnelling alternating expression suspension device and fully-mechanized digging machine coordinating operation that adopts technology maturation particularly, carry out the comprehensive pick nothing in tunnel of on-the-spot immediate support and permanent support and move back the machine operation supporting method, be mainly used in the underworkings fully mechanized workface, the development machine excavation operation exposes the lapping that the top board and two in tunnel helps, the mechanization supporting of beating steel band and playing operations such as anchor pole.Belong to tunnelling support process technical field.
Background technology
At present, the excavation operation of underworkings is mining, the prerequisite of every other mining operations in the pit mining in colliery especially, but stope output significantly increases, follow a large amount of tunnels to consume, the contradiction that driving does not catch up with the back production needs is more and more outstanding in many mining areas.The tunnelling rate is low, with the support pattern etc. of driving close relationship is arranged.
Traditional driving and the processing step of permanent support are roughly: the fully-mechanized digging machine coal cutting produce coal-is tapped-temporary lining-brushing cleaning-permanent support; it is step pitch of fully-mechanized digging machine driving; shut down and the machine of drawing back; carry out temporary lining; the operating personnel is to the lapping of meeting head on; finish beat steel band and beat permanent support such as anchor pole after, fully-mechanized digging machine pulling relevant device moves forward.Then, proceed the cycle operation of tunneling next step pitch, shutting down, moving back machine, permanent support etc. by above-mentioned steps.After the fully-mechanized digging machine cut is finished; most of the time is manually to carry out frame canopy, lapping in the shutdown situation, install rig, play supporting operations such as anchor pole; and regardless of the digging laneway wall rock condition, one time digging footage all can not be excessive, otherwise can face wall caving, roof fall accident threat.Therefore, the mode efficient that existing driving moves back machine operation is very low, and poor stability makes the advantage of fully-mechanized digging machine to bring into play.Its basic reason is exactly that the pick support pattern is combined in existing tunnel, need exchange the excavation operation work post continually, repeatedly carry each apparatus for work, and lack the back that can screen fully-mechanized digging machine normally to tunnel, driving is exposed and carry out the safety means of effective temporary lining and the permanent support equipment that cooperates speedy drivage.The driving in tunnel has become the production bottleneck of many coal mining enterprises, so, research can effectively limit and prevent the country rock sex change destroy, solve the digging laneway temporary support problem, for the permanent support operation provides safety, the comprehensive pick support process of operating environment easily, significant for the quality and the efficient that improve tunnelling.
Combine pick support process step and mainly comprise temporary lining and permanent support.Existing comprehensive pick temporary lining except interim some post, mainly comprises and adopts forestope temporary lining, pillar to add several modes such as joist type temporary lining and the airborne temporary lining of fully-mechanized digging machine.In fact above-mentioned several temporary lining mode remains dependence and manually carries out supporting and before send, and can't fundamentally solve problems such as the operation of empty top and supporting efficient are low.In recent years, along with the fully-mechanized digging machine machine-carried type temporary lining that the development of fully-mechanized digging machine occurs, then be to utilize the fuselage of fully-mechanized digging machine to do fulcrum, after step pitch of driving is shut down, the top board that tunnels firm exposure is carried out temporary supporting.But facts have proved that the supporting scope of this mode and intensity are very limited, can not solve the safety support problem in the driving effectively.Permanent support mainly is to adopt the mode of prestress anchoraging high strength anchor bar anchor cable combination supporting system that digging laneway is carried out roof timbering and two to help supporting.The applicant once combines pick support process means at traditional tunnel and falls behind, need exchange excavation operation work post, transport operation device repeatedly continually, and lack and can screen fully-mechanized digging machine normally to tunnel, the back that tunnels firm exposure is carried out the situation of effective temporary lining safety means, designing publication No. is CN102654060A " tunnelling alternating expression suspension device ".It adopts the grouping framework alternating expression supporting and protection structure that is made of girder frame and auxilliary roof beam structure and hydraulic vertical prop, the sidepiece of auxilliary roof beam structure arranges the auxiliary anchor pole device of beating, the front end of girder frame and the front-axle beam member hinges of carrying out lapping work, and beam assembly rotates around the axis of the jointed shaft of girder frame front end before utilizing the front-axle beam Driven by Hydraulic Cylinder be hinged between girder frame and the preceding beam assembly, hinged frame hydraulic cylinder interlock respectively driving girder frame or the same moved further of auxilliary roof beam structure of moving between girder frame and the auxilliary roof beam structure.Therefore, the reasonable in design of this tunnelling alternating expression suspension device, supporting and mobile stable, in the tunnelling process, support each other, by moving the mutual push-and-pull walking of frame hydraulic cylinder, and guarantee in the moving process of main and auxiliary roof beam structure, to have a framing to be in the top state that connects all the time, realize the continuous support supporting to top board; Significantly improve the supporting quality of back, eliminated the directly risk of high-risk operations under the top board that exposes of traditional driving face workman.
But, in actual applications, also exist and to limit effectively and to prevent that the country rock sex change from destroying, still can't fundamentally solve the digging laneway temporary support problem, the comprehensive pick supporting method of safe and convenient operating environment can not be provided for the permanent support operation because the machine excavation operation is moved back in existing tunnel, it is low that driving moves back machine operation efficient, become the bottleneck that a lot of coal mining enterprises of restriction produce.This shows, take full advantage of above-mentioned " tunnelling alternating expression suspension device " and fully-mechanized digging machine coordinating operation, satisfy the comprehensive pick nothing in tunnel of better on-the-spot temporary lining, permanent support and move back machine operation, realize the immediate support of mechanization, comprehensive pick efficient is significant for improving.
Summary of the invention
The purpose of this invention is to provide the comprehensive pick nothing in a kind of tunnel and move back the machine operation supporting method, solve the comprehensive pick in traditional tunnel and moved back machine supporting job safety poor reliability, problems such as complicated operating process, its technical flow design is reasonable, driving is mobile stable, and it is reliable that nothing is moved back machine supporting job safety, stops the empty top operation of digging laneway, realize driving and permanent support mechanization concurrent job, promote development machine Homes Using TV and drivage efficiency.
The technical solution adopted in the present invention is: the comprehensive pick nothing in this tunnel is moved back the machine operation supporting method and is comprised that carrying out supporting operation with fully-mechanized digging machine realizes the tunnel is combined the temporary lining of digging the operation fresh roof and utilized tunnelling alternating expression suspension device that the place of meeting head on is carried out wire lath, the supporting operation that steel band is laid, utilize portable roof-bolter supporting platform that the permanent support operation that top board and two helps to beat anchor pole is carried out in the zone, tunnel at fully-mechanized digging machine rear portion, use bridge-type leather belt reshipment machine and ribbon conveyer that the coal under the fully-mechanized digging machine cut is transported operation, its technical essential is: it is as follows that the comprehensive pick in tunnel does not have the concrete operations step of moving back the machine operation supporting:
When step 2, fully-mechanized digging machine normally tunnel, pull the bridge-type leather belt reshipment machine at rear portion, shut down after step pitch of cut forward, a tunnelling alternating expression suspension device described operational method is set by step divided a word with a hyphen at the end of a line away certainly to top board continuous supporting and the realization of driving face, at this moment, the passing hydraulic cylinder of the portable roof-bolter supporting platform that links to each other with the fully-mechanized digging machine rear portion stretches out, and keeps portable roof-bolter supporting platform to move with fully-mechanized digging machine; Still to be parked in former operating position motionless with ribbon conveyer that the bridge-type leather belt reshipment machine is connected mutually, continues the coal under the fully-mechanized digging machine cut is transported from the work plane front portion; When tunnelling alternating expression suspension device is divided a word with a hyphen at the end of a line away forward certainly with fully-mechanized digging machine, wire lath, steel band on the beam assembly is laid on the top board of new exposure automatically before the device with being installed in advance, and carries out the laying of two wire laths of helping and steel band under the shielding of tunnelling alternating expression suspension device by the manual work mode;
Described tunnelling alternating expression suspension device adopts the grouping framework alternating expression supporting and protection structure that is made of girder frame and auxilliary roof beam structure and hydraulic vertical prop, the front end of girder frame and the front-axle beam member hinges of carrying out lapping work, and beam assembly rotates around the axis of the jointed shaft of girder frame front end before utilizing the front-axle beam Driven by Hydraulic Cylinder that is hinged between girder frame and the preceding beam assembly, hinged frame hydraulic cylinder staggered girder frame or the auxilliary roof beam structure of driving respectively that move realized from dividing a word with a hyphen at the end of a line away between girder frame and the auxilliary roof beam structure.
Described portable roof-bolter supporting platform adopts the gate-type structure that is made of base, elevating mechanism and job platform, the portable roof-bolter supporting of the passing Driven by Hydraulic Cylinder that two ends are hinged with fully-mechanized digging machine rear portion and portable roof-bolter supporting platform base respectively platform is followed fully-mechanized digging machine and is moved forward, and the sliding track mechanism that arranges on the roof-bolter of being responsible for beating the anchor pole operation and the job platform is connected.
Described bridge-type leather belt reshipment machine is interconnected by preceding belt holder, transition frame, middle frame, back belt holder and running gear and forms.
Described ribbon conveyer is interconnected by headstock, aircraft tail shelf, conveyer belt, carrying roller, cylinder and travel mechanism and forms.
Advantage and good effect that the present invention has are: because the present invention adopts " tunnelling alternating expression suspension device " (publication No. is CN102654060A) and the portable roof-bolter supporting platform of the applicant's patent application formerly, bridge-type leather belt reshipment machine and ribbon conveyer and fully-mechanized digging machine coordinating operation, tunnel forward and mobile with fully-mechanized digging machine, temporary lining and top board are carried out in zone, tunnel to new exposure, the auxiliary laying of two wire laths of helping and steel band, and the comprehensive pick of the mechanization supporting operation of beating anchor pole by portable roof-bolter supporting platform, so technical flow design of the present invention is reasonable, driving is mobile stable, it is reliable that nothing is moved back machine supporting job safety, stop the empty top operation of digging laneway, realize driving and permanent support mechanization concurrent job, avoid the directly risk of high-risk operations under the top board that exposes of traditional driving face operating personnel, effectively improve the supporting quality of back.This comprehensive pick supporting method, make fully-mechanized digging machine under the situation of the machine of not drawing back, to tunnel continuously, changing one step one of original excavation operation pick moves back the mode of machine, frequent exchange flow chart, be implemented in the fully-mechanized digging machine rear portion and carry out the operation of mechanization permanent support, reduce between the different operations and replace the time of wasting, improve drivage efficiency significantly.Therefore, it is poor to the invention solves in the stope of coal mines tunnelling process traditional supporting method security reliability, personnel need enter the empty top zone operation, complicated operating process, the fully-mechanized digging machine Homes Using TV is low, tunnelling speed is slow, can not adapt to problems such as mine normal production needs, satisfy the requirement that operations such as the temporary lining of underworkings fully mechanized workface top board and the permanent support in tunnel and fully-mechanized digging machine effectively cooperate, realize that fully mechanized workface is by the mechanization transition of development machine driving to the permanent support operation, change traditional driving and support process flow process, significantly improve the Homes Using TV of development machine, operating for operating personnel's supporting provides effective safety guarantee.
Description of drawings
Fig. 1 (a) and (b) are a kind of fully-mechanized digging machine of the present invention tunnels the immediate support operation forward under the shielding of tunnelling alternating expression suspension device schematic diagrames;
Fig. 2 is that Fig. 1 (a) is along the sectional view of A-A line;
Fig. 3 (a) and (b) are after a kind of fully-mechanized digging machine of the present invention is shut down, and wire lath, steel band are laid in advance and the schematic diagram that top board and two helps to beat the permanent support operation of anchor pole is carried out in the zone, tunnel at fully-mechanized digging machine rear portion meeting head on to carry out;
Fig. 4 is a kind of structural representation of the tunnelling alternating expression suspension device among Fig. 1 (a);
Fig. 5 is the vertical view of Fig. 4;
Fig. 6 is a kind of structural representation of portable roof-bolter supporting platform among Fig. 1 (a), Fig. 3 (a);
Fig. 7 is the lateral view of Fig. 6;
Fig. 8 is the structural representation of a kind of bridge-type leather belt reshipment machine of the present invention;
Fig. 9 is the structural representation of a kind of ribbon conveyer of the present invention.
Sequence number explanation among the figure: 1 tunnelling alternating expression suspension device, 2 fully-mechanized digging machines, 3 portable roof-bolter supporting platforms, 4 roof-bolters, 5 bridge-type leather belt reshipment machines, 6 ribbon conveyers, 7 wire laths, 8 steel bands, beam assembly before 9,10 front-axle beam hydraulic cylinders, 11 girder framves, 12 move the frame hydraulic cylinder, 13 auxilliary roof beams structure, 14 hydraulic vertical props, 15 pass hydraulic cylinder, 16 bases, 17 elevating mechanisms, 18 job platforms, 19 sliding track mechanisms, belt holder before 20,21 transition frame, 22 middle frames, 23 back belt holders, 24 running gears, 25 travel mechanisms, 26 aircraft tail shelfs, 27 conveyer belts, 28 carrying rollers, 29 headstocks, 30 cylinders.
The specific embodiment
Describe concrete operations step of the present invention in detail according to Fig. 1～9.The comprehensive pick nothing in this tunnel is moved back the machine operation supporting method and is comprised that carrying out supporting operation with the fully-mechanized digging machine 2 that carries out the tunnelling operation realizes the temporary lining of digging the operation fresh roof is combined in the tunnel, and utilize tunnelling alternating expression suspension device 1(publication No. to be CN102654060A) place of meeting head on is carried out wire lath 7, the supporting operation that steel band 8 is laid, utilize the zone, tunnel at 3 pairs of fully-mechanized digging machine 2 rear portions of portable roof-bolter supporting platform to carry out the permanent support operation that top board and two helps to beat anchor pole, use bridge-type leather belt reshipment machine 5 and ribbon conveyer 6 that the coal under fully-mechanized digging machine 2 cuts is transported operation etc.Wherein tunnelling alternating expression suspension device 1 basic structure still adopts the grouping framework alternating expression supporting and protection structure that is made of girder frame 11 and auxilliary roof beam structure 13 and hydraulic vertical prop 14 in the patent application formerly.The front end of girder frame 11 is hinged with the preceding beam assembly 9 that carries out lapping work, and beam assembly 9 rotates around the axis of the jointed shaft of girder frame 11 front ends before utilizing the front-axle beam hydraulic cylinder 10 be hinged between girder frame 11 and the preceding beam assembly 9 to drive, hinged frame hydraulic cylinder 12 interlock respectively driving girder frame 11 or the auxilliary roof beam structure 13 same moved further of moving between girder frame 11 and the auxilliary roof beam structure 13; For screening portable roof-bolter supporting platform 3 to carry out the permanent support operation at fully-mechanized digging machine 2 rear portions effectively, main and auxiliary roof beam structure 11,13 rear portion can suitably lengthen according to actual instructions for use.
Portable roof-bolter supporting platform 3 adopts the gate-type structure that is made of base 16, elevating mechanism 17 and job platform 18, the passing hydraulic cylinder 15 that two ends are hinged with the base 16 of the rear portion of fully-mechanized digging machine 2 and portable roof-bolter supporting platform 3 respectively drives portable roof-bolter supporting platform 3 and follows fully-mechanized digging machine 2 and move forward, and the sliding track mechanism 19 of setting is connected on the roof-bolter 4 of being responsible for beating the anchor pole operation and the job platform 18; When work, portable roof-bolter supporting platform 3 laterally on bridge-type leather belt reshipment machine 5, by stretching of elevating mechanism 17, cooperates the roof-bolter 4 of sliding track mechanism 19 and upward connection thereof to carry out the permanent support operation in the zone, tunnel at fully-mechanized digging machine 2 rear portions.
Bridge-type leather belt reshipment machine 5 is interconnected by preceding belt holder 20, transition frame 21, middle frame 22, back belt holder 23 and running gear 24 and forms.When work, the preceding belt holder 20 of bridge-type leather belt reshipment machine 5 links together with the rear portion of fully-mechanized digging machine 2, and whole bridge-type leather belt reshipment machine 5 can be moved with the driving of fully-mechanized digging machine 2; For portable roof-bolter supporting platform 3 being moved and the consideration in fully-mechanized digging machine 2 forward and backward walking spaces, suitably increase the preceding belt holder 20 of bridge-type leather belt reshipment machine 5 and the length of transition frame 21.
Ribbon conveyer 6 is interconnected by headstock 29, aircraft tail shelf 26, conveyer belt 27, carrying roller 28, cylinder 30 and travel mechanism 25 and forms.When work, the aircraft tail shelf 26 of ribbon conveyer 6 connects mutually with the running gear 24 of bridge-type leather belt reshipment machine 5 and is connected, so that the coal under fully-mechanized digging machine 2 cuts is transported on the ribbon conveyer 6 from bridge-type leather belt reshipment machine 5, transports work plane; In fully-mechanized digging machine 2 advances the coal cutting process continuously, be connected with effectively connecting of ribbon conveyer 6 for keeping bridge-type leather belt reshipment machine 5, ribbon conveyer 6 can rely on the travel mechanism 25 that is arranged on its headstock 29 and aircraft tail shelf 26 places to move forward.
It is as follows that the comprehensive pick in tunnel of the present invention does not have the concrete operations step of moving back the machine operation supporting:
Thereby realize the mechanization concurrent job of driving and permanent support, change original excavation operation pick one and go on foot a mode of moving back machine, frequent exchange flow chart, improve drivage efficiency significantly.
Claims (5)
1. a tunnel is combined the pick nothing and is moved back the machine operation supporting method, comprise that carrying out supporting operation with fully-mechanized digging machine realizes the tunnel is combined the temporary lining of pick operation fresh roof and utilized tunnelling alternating expression suspension device that the place of meeting head on is carried out wire lath, the supporting operation that steel band is laid, utilize portable roof-bolter supporting platform that the permanent support operation that top board and two helps to beat anchor pole is carried out in the zone, tunnel at fully-mechanized digging machine rear portion, use bridge-type leather belt reshipment machine and ribbon conveyer that the coal under the fully-mechanized digging machine cut is transported operation, it is characterized in that: it is as follows that the comprehensive pick in tunnel does not have the concrete operations step of moving back the machine operation supporting:
Step 1, the tunnelling alternating expression suspension device that covers on the fully-mechanized digging machine outside separately by being arranged in the driving face place of meeting head on move the frame hydraulic cylinder, staggered driving girder frame or the mutual push-and-pull of auxilliary roof beam structure respectively, realize from dividing a word with a hyphen at the end of a line away, making has a framing to be in all the time in the moving process of main and auxiliary roof beam structure to connect the top state, form the continuous support supporting of top board; And utilize tunnelling alternating expression suspension device to assist and carry out the laying of wire lath, steel band; Top board and two helps to beat the supporting operation of anchor pole, then by finishing by the auxiliary roof-bolter of portable roof-bolter supporting platform that the passing hydraulic cylinder links to each other on the bridge-type leather belt reshipment machine and with the fully-mechanized digging machine rear portion; The fully-mechanized digging machine rear portion is connected with the preceding belt holder of bridge-type leather belt reshipment machine, and the running gear of the back belt holder of bridge-type leather belt reshipment machine connects mutually with the aircraft tail shelf of ribbon conveyer and is connected, and transports coal under the fully-mechanized digging machine cut through the aircraft tail shelf of ribbon conveyer;
When step 2, fully-mechanized digging machine normally tunnel, pull the bridge-type leather belt reshipment machine at rear portion, shut down after step pitch of cut forward, a tunnelling alternating expression suspension device described operational method is set by step divided a word with a hyphen at the end of a line away certainly to top board continuous supporting and the realization of driving face, at this moment, the passing hydraulic cylinder of the portable roof-bolter supporting platform that links to each other with the fully-mechanized digging machine rear portion stretches out, and keeps portable roof-bolter supporting platform to move with fully-mechanized digging machine; Still to be parked in former operating position motionless with ribbon conveyer that the bridge-type leather belt reshipment machine is connected mutually, continues the coal under the fully-mechanized digging machine cut is transported from the work plane front portion; When tunnelling alternating expression suspension device is divided a word with a hyphen at the end of a line away forward certainly with fully-mechanized digging machine, wire lath, steel band on the beam assembly is laid on the top board of new exposure automatically before the device with being installed in advance, and carries out the laying of two wire laths of helping and steel band under the shielding of tunnelling alternating expression suspension device by the manual work mode;
Step 3, by driving the front-axle beam hydraulic cylinder of beam assembly before the tunnelling alternating expression suspension device, beam assembly rotates around the girder frame front end axis bottom before making, and on the beam assembly, again pendulum on the preceding beam assembly is back to initial position before wire lath and steel band are arranged in advance; Simultaneously, the passing hydraulic cylinder of portable roof-bolter supporting platform is regained, drive whole platform and move forward a step pitch, under the shielding at tunnelling alternating expression suspension device rear portion, by the roof-bolter that arranges on the portable roof-bolter supporting platform, the top board and two in the zone, tunnel at fully-mechanized digging machine rear portion is helped to carry out the permanent support operation;
Step 4, according to the operating condition of digging laneway, the top board of the fully-mechanized digging machine of repeating step two and step 3 driving, tunnelling alternating expression suspension device continuous supporting driving face, install wire lath and steel band, top board and two to the zone, tunnel at fully-mechanized digging machine rear portion helps to carry out the permanent support operation, cut, at least two step pitches of supporting; Transport work plane in order to ensure the coal under the fully-mechanized digging machine cut, ribbon conveyer relies on the travel mechanism of self to move forward a segment distance, is connected with the connecting mutually of aircraft tail shelf of ribbon conveyer with the running gear of the back belt holder that keeps the bridge-type leather belt reshipment machine;
Step 5, repeat above-mentioned steps two～four continuously, constantly carry out the cycle operation of next cut, supporting, fully-mechanized digging machine can be under the situation of the machine of not drawing back driving continuously.
2. tunnel according to claim 1 is combined the pick nothing and is moved back the machine operation supporting method, it is characterized in that: described tunnelling alternating expression suspension device adopts the grouping framework alternating expression supporting and protection structure that is made of girder frame and auxilliary roof beam structure and hydraulic vertical prop, the front end of girder frame and the front-axle beam member hinges of carrying out lapping work, and beam assembly rotates around the axis of the jointed shaft of girder frame front end before utilizing the front-axle beam Driven by Hydraulic Cylinder that is hinged between girder frame and the preceding beam assembly, hinged frame hydraulic cylinder staggered girder frame or the auxilliary roof beam structure of driving respectively that move realized from dividing a word with a hyphen at the end of a line away between girder frame and the auxilliary roof beam structure.
3. tunnel according to claim 1 is combined the pick nothing and is moved back the machine operation supporting method, it is characterized in that: described portable roof-bolter supporting platform adopts the gate-type structure that is made of base, elevating mechanism and job platform, the portable roof-bolter supporting of the passing Driven by Hydraulic Cylinder that two ends are hinged with fully-mechanized digging machine rear portion and portable roof-bolter supporting platform base respectively platform is followed fully-mechanized digging machine and is moved forward, and the sliding track mechanism that arranges on the roof-bolter of being responsible for beating the anchor pole operation and the job platform is connected.
4. tunnel according to claim 1 is combined the pick nothing and moved back the machine operation supporting method, it is characterized in that: described bridge-type leather belt reshipment machine is interconnected by preceding belt holder, transition frame, middle frame, back belt holder and running gear and forms.
5. tunnel according to claim 1 is combined the pick nothing and is moved back the machine operation supporting method, and it is characterized in that: described ribbon conveyer is interconnected by headstock, aircraft tail shelf, conveyer belt, carrying roller, cylinder and travel mechanism and forms.
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| CN2013101290473A CN103195457A (en) | 2013-04-15 | 2013-04-15 | Supporting method for roadway fully-mechanized drivage operation without withdrawal of roadheader |
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| CN2013101290473A CN103195457A (en) | 2013-04-15 | 2013-04-15 | Supporting method for roadway fully-mechanized drivage operation without withdrawal of roadheader |
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