CN105569701B - Suspension device is tunneled suitable for the step type that hard-rock tunnel is tunneled - Google Patents

Suspension device is tunneled suitable for the step type that hard-rock tunnel is tunneled Download PDF

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Publication number
CN105569701B
CN105569701B CN201610119970.2A CN201610119970A CN105569701B CN 105569701 B CN105569701 B CN 105569701B CN 201610119970 A CN201610119970 A CN 201610119970A CN 105569701 B CN105569701 B CN 105569701B
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China
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support
plate
iii
longeron
pair
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CN201610119970.2A
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CN105569701A (en
Inventor
谢苗
刘治翔
卢进南
毛君
王鹏飞
李晨光
王洪涛
马玉春
刘柱
刘一柱
赵春晓
李翠
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Liaoning Technical University
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Liaoning Technical University
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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/04Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D20/00Setting anchoring-bolts
    • E21D20/003Machines for drilling anchor holes and setting anchor bolts
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/03Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor having protective means, e.g. shields, for preventing or impeding entry of loose material into the working space or support
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/16Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
    • E21D23/18Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices of advancing mechanisms
    • E21D23/20Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices of advancing mechanisms for sequential movement, e.g. one behind the other
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/16Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
    • E21D23/26Hydraulic or pneumatic control
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/10Making by using boring or cutting machines
    • E21D9/1006Making by using boring or cutting machines with rotary cutting tools
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/12Devices for removing or hauling away excavated material or spoil; Working or loading platforms

Abstract

A kind of step type driving suspension device tunneled suitable for hard-rock tunnel, including tail unit, host groups, cutting units, block shutter arrangement and conveying device, host groups front end is provided with forestope, is characterized in that:The host groups include the secondary support group of the main support group of host groups and host groups being staggered from the front to the back:The main support group of host groups includes connecting plate I, support cylinder I, longeron I, back timber I, collateral backplate I;Host groups pair support group includes connecting plate II, support cylinder II, longeron II, back timber II;Tail unit includes the main support group of tail unit being staggered from the front to the back and the secondary support group of tail unit:The main support group of tail unit includes connecting plate III, support cylinder III, longeron III, back timber III, collateral backplate II;Tail unit pair support group includes connecting plate IV, support cylinder IV, longeron IV, back timber IV.The problems such as fundamentally solving poor existing development machine security, poor controllability, it has the advantages that equipment attrition is low, it is stable to advance.

Description

Suspension device is tunneled suitable for the step type that hard-rock tunnel is tunneled
Technical field
The present invention relates to coal mine machinery field, specifically a kind of step type driving branch tunneled suitable for hard-rock tunnel Protection unit, mainly completes quickly propelling for tunnelling operation by way of big gun pick.
Background technology
Currently for the excavation operation of hard-rock tunnel, mainly using two ways, one is completed using hard rock mole, two It is to be completed using big gun pick operation.It is very big to cutterhead and equipment damage during using hard rock mole to hard rock cut, it is often necessary to Change pick and other assemblies.In addition, boom-type roadheader is after cut goes out one section of unsupported back span, top plate can not obtain timely and effective Supporting, it usually needs recall development machine, permanent support is carried out to top plate using support apparatus such as special jumbolters, thus Influence drivage efficiency.When carrying out big gun pick operation, often do not have in top plate manually to be drilled under conditions of good supporting, install and fry , there is great potential safety hazard in the operations such as medicine.
Existing comprehensive tunneler, such as Authorization Notice No. disclose a kind of " supporting for CN102022122B patent of invention Formula comprehensive tunneler ", by without crawler type development machine,
Development machine chassis, left and right hydraulic support, rig and drag conveyor composition, development machine are arranged on development machine chassis On, two advancing jacks are installed, the other end of advancing jack connects with left and right hydraulic support respectively on development machine chassis Connect, side push oil cylinder is respectively installed in the both sides on development machine chassis, the forestope of left and right hydraulic support is respectively provided with one group of wire netting Memory, support main canopy afterbody is hung with rig, and the tail of the first drag conveyor is arranged in the shovel board of development machine, head Overlapped with the second scraper conveyor tail, the second handpiece of scraper conveyer is overlapped with belt transfer tail, in two hydraulic supports Rear be provided with sled.Although the technical scheme has the advantages that perforating supporting and development machine coal cutting parallel operations, in certain journey Labor intensity is reduced on degree, coal mining efficiency is improved.But, it still suffers from following defect:It is a point left side half when moving forward operation Support group and right half support group, when left half support group is moved forward, left one side of something of back is in non-support state, for Soft-rock tunnel, easily occurs top plate unstability situation, there is potential safety hazard.To hard-rock tunnel generally based on big gun pick mode, use Cutting units carries out tunnel repairing type, therefore it can not be applied to hard-rock tunnel.Complete machine is driven to retreat using anchor chain, it is impossible to provide enough Pulling force, there is limitation in back operation.The reliability and controllability for pulling process using steel wire rope are poor.
Existing comprehensive tunneler, such as application publication number disclose " tunnel for CN104500086A application for a patent for invention Unmanned digging and anchoring integrated machine ", it mainly includes driving system, induction system, temporary support system, anchor system, driving all-in-one Water system, sensor-based system, electric control system.Shovel board portion and group of the joining place of induction system front end wherein in driving system Material roller bearing can prevent to get stuck in shovel board and drag conveyor front end.Although the technical scheme can be adapted to a variety of drift sections, And progress driving supporting operation under the conditions of differently pressure is met to a certain extent.But, it still suffers from following defect:Due to adopting With some supporting plates as tunnel supporting mechanism, easily occur top plate unstability situation, can still there is potential safety hazard.Using tracked machine Although the running part of structure can realize back operation to a certain extent, such as hard rock frictional ground force is relatively low to cause pedrail mechanism row Enter or retreat extremely difficult., may be different due to left and right crawler belt running resistance in pedrail mechanism traveling process, cause cut Position deviation.
The content of the invention
Suspension device is tunneled it is an object of the invention to provide a kind of step type suitable for hard-rock tunnel driving, fundamentally The problems such as solving difficult poor existing development machine security, narrow application range, back operation, poor controllability, it has equipment mill Damage it is low, the advantages of advance that stable, operation process is safe and reliable, be easily manipulated.
To achieve the above object, the invention provides following technical scheme:This is applied to the step type that hard-rock tunnel is tunneled Driving suspension device includes tail unit, host groups, cutting units, blocks shutter arrangement and conveying device, and host groups front end is provided with Forestope, is characterized in that:The host groups include the main support group of host groups and host groups pair being staggered from the front to the back Support group:
The main support group of host groups includes the front and rear two pieces connecting plate I laterally set, is separately fixed on front and rear two pieces of connecting plate I Two couples of support cylinder I of vertical direction, the longeron I being disposed longitudinally on for a pair between former and later two support cylinders I, across in longeron Back timber I that a pair between I are located on support cylinder I respectively, the collateral backplate I being respectively hinged on the outside of longeron I;
Host groups pair support group includes the front and rear two pieces connecting plate II laterally set, is separately fixed on front and rear two pieces of connecting plate II Vertical direction two couples of support cylinder II, be disposed longitudinally on for a pair between former and later two support cylinders II longeron II, across A pair of back timber II respectively on support cylinder II between longeron II;
A pair of passage oil cylinder I are arranged between anterior connecting plate I and the connecting plate II at rear portion;
Cutting units includes spacing support platform on connecting plate I, the drive hoeing machine panoramic table being fixed in support platform, installed Drive hoeing machine in drive hoeing machine panoramic table front end, the base in support platform, horizontally rotating on base Cut panoramic table, the cutting arm being hinged on cut panoramic table, the cutterhead installed in cutting arm front end and installed in cut Drilling machine on arm;
Tail unit includes the main support group of tail unit being staggered from the front to the back and the secondary support group of tail unit:
The main support group of tail unit includes the front and rear two pieces connecting plate III laterally set, is separately fixed at front and rear two pieces of connecting plate III On vertical direction two couples of support cylinder III, be disposed longitudinally on for a pair between former and later two support cylinders III longeron III, It is located at the back timber III on support cylinder III respectively across a pair between longeron III, is respectively hinged on the outside of longeron III Collateral backplate II;
Tail unit pair support group includes the front and rear two pieces connecting plate IV laterally set, is separately fixed on front and rear two pieces of connecting plate IV Vertical direction two couples of support cylinder IV, be disposed longitudinally on for a pair between former and later two support cylinders IV longeron IV, across A pair of back timber IV respectively on support cylinder IV between longeron IV;
A pair of connection oil cylinders, anterior connecting plate III and front portion are arranged between the connecting plate I at rear portion and the connecting plate IV of front portion Connecting plate IV, the connecting plate III at rear portion and the connecting plate IV at rear portion between respectively symmetrically provided with a pair of passage oil cylinder III, anterior company A pair of passage oil cylinder II are arranged between plate III and the connecting plate IV at rear portion;
It is provided with support platform and blocks shutter arrangement, blocks the angle that shutter arrangement includes a pair and is fixed in support platform Shape blocks roller shutter framework, spacing blocks driving on roller shutter framework blocking the slide rail in roller shutter framework, side installed therein Motor, respectively symmetrically being located at installed in the head pulley group and auxiliary pulley group blocked on the outside of roller shutter framework, on slide rail hide Between the rolling slat I and rolling slat II kept off between roller shutter framework, rolling slat I or between roller shutter version II or between roller shutter version I and II It is connected by roller shutter connecting plate, head pulley group is arranged on the output end of motor.
The shovel board being hinged in support platform that the conveying device includes setting gradually, it is arranged in host groups and shovel board The connected conveyer I of output end and the conveyer II being arranged in tail unit, conveyer I are located at by longeron I, II and back timber I, II In the gantry structure constituted with support cylinder I, II and connecting plate I, II, conveyer II is located at by longeron III, IV and back timber III, IV In the gantry structure constituted with support cylinder III, IV and connecting plate III, IV.
The tail machine group end is provided with jumbolter.
Beneficial effects of the present invention:By the alternate mode speedy drivage of step type, make back timber I ~ IV alternately as stress Fulcrum, ensure that top plate obtains timely and effective supporting all the time, it is to avoid because thrust is not enough caused by tunnel ground is uneven, Move forward and backward action, elapses more steady, it is to avoid traditional hard rock driving method equipment loss is big, drivage efficiency is low and exists The problems such as potential safety hazard is big.Only pass through back timber and connecting plate vertical direction(Wasted without oblique torque)Support force be sustainable whole Boring mechanism, eliminates lateral wall supporting construction, simplifies manipulation process, so as to effectively reduce rate of breakdown.Mainly pass through Big gun pick mode completes quickly propelling for tunnelling operation, and uses the repairing type operation of cutting units progress top connecting plate and lateral wall.It is logical Cross the alternately mode of taking a step and be moved to assignment position, cutting units is by after rib repairing type, and drive hoeing machine coal cinder is taken off to shovel board, successively Coal cinder is sent out through conveyer I, conveyer II, and can be by cutting units to top connecting plate and lateral wall repairing type.Back timber, longeron and one Arch gantry structure is constituted to support cylinder, space can be made full use of, beneficial to installing and using for the electric equipments such as conveying device.It is main Unit and tail unit, are mounted on collateral shield, can carry out supporting to the side wall in tunnel, while collateral shield ensure that unit exists More stablize in tunneling process.The steady operation of support cylinder has been effectively ensured by collateral backplate.For realizing underground coal mine The development of unmanned driving outfit has positive effect, can effectively reduce the intensity of coal miner headwork.It is preceding to visit Beam is fixed on the secondary support group of host groups, can be the tunnel effective gib of top plate progress foremost, to being pushed up foremost in tunnel The workman of operation and equipment provide protection below plate, improve underground drivage efficiency and excavation operation security.In addition, in tail machine The support apparatus such as jumbolter can carry out permanent support to top plate and lateral wall.
Brief description of the drawings
Fig. 1 is isometric side structure schematic view of the invention;
Fig. 2 is the isometric side structure schematic view of the secondary support group of host groups of the present invention;
Fig. 3 is the isometric side structure schematic view of the main support group of host groups of the present invention;
Fig. 4 is the isometric side structure schematic view of cutting units of the present invention;
Fig. 5 is the isometric side structure schematic view of tail unit of the present invention;
Fig. 6 blocks the isometric side structure schematic view of roller shutter for the present invention;
Fig. 7 is the schematic diagram that one of which of the present invention replaces course of a step.
Description of reference numerals:
In Fig. 1:1 host groups pair support group, the main support group of 2 host groups, 3 tail units, 4 cutting units, 5 conveyer II, 6 connections Oil cylinder, 7 passage oil cylinder I, 11 support cylinder II, 12 connecting plate II, 13 longeron II, 14 back timber II, 21 support cylinder I, 22 connecting plate I, The secondary support group of 23 longeron I, 24 back timber I, 31 tail units, the main support group of 32 tail units, 33 collateral backplate II;
In Fig. 2:Visited before 11 support cylinder II, 12 connecting plate II, 13 longeron II, 14 back timber II, 15 shovel boards, 16 conveyer I, 17 Beam;
In Fig. 3:20 block shutter arrangement, 21 support cylinder I, 22 connecting plate I, 23 longeron I, 24 back timber I, the revolution of 25 drive hoeing machines Platform, 26 support platforms, 27 support platform fixed parts, 28 drive hoeing machines, 29 collateral backplate I;
In Fig. 4:41 bases, 42 cut panoramic tables, 43 cutting arms, 44 drilling machines, 45 cutterheads;
In Fig. 5:6 connection oil cylinders, 33 collateral backplate II, 311 support cylinder IV, 312 connecting plate IV, 313 longeron IV, 314 tops Beam IV, 315 passage oil cylinder III, 321 support cylinder III, 322 connecting plate III, 323 longeron III, 324 back timber III, 325 passage oil Cylinder II;
In Fig. 6:201 block roller shutter framework, 202 slide rails, 203 head pulley groups, 204 auxiliary pulley groups, 205 motors, 206 Rolling slat I, 207 rolling slat II, 208 roller shutter connecting plates.
Embodiment
Below in conjunction with Fig. 1 ~ 7, present disclosure is described in detail by specific embodiment.Hard-rock tunnel driving should be applied to Step type driving suspension device include tail unit 3, host groups, cutting units 4, block shutter arrangement and conveying device.Wherein, Host groups include the secondary support group 1 of the main support group 2 of host groups and host groups being staggered from the front to the back:
The main support group of host groups includes the front and rear two pieces connecting plate I22 laterally set, is separately fixed on front and rear two pieces of connecting plate I Vertical direction two couples of support cylinder I 21, the longeron I 23, horizontal that is disposed longitudinally on for a pair between former and later two support cylinders I It is located at the back timber I 24 on support cylinder I respectively across a pair between longeron I, is respectively hinged at the collateral of the outsides of longeron I 23 Backplate I 29.
Host groups pair support group includes the front and rear two pieces connecting plate II 12 laterally set, is separately fixed at front and rear two pieces of connecting plates Two couples of support cylinder II of the vertical direction on II, the longeron being disposed longitudinally on for a pair between former and later two support cylinders II 11 II 13, the back timber II 14 across a pair between longeron II respectively on support cylinder II.
A pair of passage oil cylinder I 7 are arranged between anterior connecting plate I and the connecting plate II at rear portion.
Cutting units includes the spacing support platform 26 on connecting plate I 22(Support is fixed on by support platform fixed part 27 On oil cylinder I 21), be fixed in support platform drive hoeing machine panoramic table 25, pivotally installed in drive hoeing machine panoramic table front end Drive hoeing machine 28, in support platform be in along cross track slide base 41, on base can level The cut panoramic table 42 of rotation, the cutting arm 43 being hinged on cut panoramic table, installed in cutting arm front end cutterhead 45 with And the drilling machine 44 (can be stretched out when needing drilling) on cutting arm.
Forestope 17 is fixed on connecting plate II 12 by vertical column, and is connected with back timber 14.
Tail unit includes the main support group 32 of tail unit being staggered from the front to the back and the secondary support group 31 of tail unit:
The main support group of tail unit includes the front and rear two pieces connecting plate III322 laterally set, is separately fixed at front and rear two pieces of connecting plates Two couples of support cylinder III 321 of the vertical direction on III, it is disposed longitudinally on for a pair between former and later two support cylinders III Longeron III 323, across a pair between longeron III respectively be located at support cylinder III on back timber III 324, cut with scissors respectively It is connected on the collateral backplate II 33 in the outsides of longeron III 323.
Tail unit pair support group includes the front and rear two pieces connecting plate IV 312 laterally set, is separately fixed at front and rear two pieces of connecting plates Two couples of support cylinder IV 311 of the vertical direction on IV, the longeron being disposed longitudinally on for a pair between former and later two support cylinders IV IV 313, the back timber IV 314 across a pair between longeron IV respectively on support cylinder IV.
A pair of connection oil cylinders 6 are arranged between the connecting plate I at rear portion and the connecting plate IV of front portion, anterior connecting plate III is with before It is preceding respectively symmetrically provided with a pair of passage oil cylinder III 315 between the connecting plate IV in portion, the connecting plate III at rear portion and rear portion connecting plate IV A pair of passage oil cylinder II 325 are arranged between the connecting plate III in portion and the connecting plate IV at rear portion.
It is provided with support platform and blocks shutter arrangement, is blocked shutter arrangement 20 and be fixed on including a pair in support platform 26 Angular block roller shutter framework 201, spacing (one end of slide rail 202 and block roller shutter frame in the slide rail 202 blocked in roller shutter framework Frame 201 is fixed, and bottom surface is fixed on longeron I 23), side installed therein block motor 205 on roller shutter framework, point Not being symmetrically mounted on the head pulley group 203 and auxiliary pulley group 204 of blocking on the outside of roller shutter framework, (head pulley group can be on slide rail 202 Slide, the output end of head pulley group 203 is connected with auxiliary pulley group 204 and rolling slat I 206 respectively, so as to drive rolling slat I 206 and rolling slat II 207 is lifted), being located on slide rail block rolling slat I 206 and roller shutter between roller shutter framework It is connected between plate II 207, rolling slat I 206 or between roller shutter version II or between roller shutter version I and II by roller shutter connecting plate 208, Rolling slat II 207 is located at the least significant end for entirely blocking shutter arrangement, and monolithic rolling slat II 207 area is less than rolling slat I 206, and be arranged on the installing space that cutting units drive hoeing machine is reserved in the middle of both sides, it is prevented effectively from when roller shutter is put down and is sent out with drive hoeing machine 28 Raw interference.Head pulley group is connected by shaft coupling with the output end of motor.
Conveying device includes the shovel board 15 being hinged in support platform set gradually(Before shovel board 15 is fixed on for installing Visit on the riser between the column of beam 17, the riser is perpendicular to connecting plate II 12), be arranged in host groups and shovel board output end phase Conveyer I 16 even(Conveyer I 16 is fixed on connecting plate II 12)With the conveyer II 5 being arranged in tail unit, conveying Machine I is located in the gantry structure that longeron I, II and back timber I, II and support cylinder I, II and connecting plate I, II are constituted, conveyer II Positioned in the gantry structure that longeron III, IV and back timber III, IV and support cylinder III, IV and connecting plate III, IV are constituted.
Tail machine group end is provided with jumbolter(Not shown in figure).
Replace operation principle of taking a step:
1. host groups course of a step:
Step 1)Support cylinder II 11 declines, and drives longeron II 13 and back timber II 14 to decline, after back timber II 14 declines, Depart from by supporting roof, be overlapped on longeron I 23.
Step 2)Passage oil cylinder I 7 retracts, and drives two pieces of connecting plate II 12, connecting plate II 12 to drive support cylinder II 11, indulge Beam II 13, back timber II 14, shovel board 15 and one step pitch of advance of conveyer I 16(About 500mm)After stop.
Step 3)Support cylinder II 11 rises, and drives longeron II 13 and back timber II 14 to rise, and back timber II 14 departs from master Support group longeron(Longeron I 23), reach by supporting roof until support pressure reaches requirement, host groups pair support group 1 completes one Secondary advance process of taking a step.
Step 4)Support cylinder I 11 declines, and drives longeron I 23 and back timber I 24 to decline, after back timber I 24 declines, and departs from By supporting roof, it is overlapped on longeron II 13.Collateral backplate I 29 shrinks, and stops the support to tunnel lateral wall.
Step 5)Passage oil cylinder I7 stretches out, and drives two pieces of connecting plate I 22, connecting plate I 22 to drive support cylinder I 21, longeron I 23rd, a step pitch of the advance such as back timber I 24, support platform 26 and collateral backplate I 29(About 500mm)After stop.
Step 6)Support cylinder I 21 rises, and drives longeron I 23 and back timber I 24 to rise, back timber I 24 departs from secondary support Group longeron(Longeron II 13), reach by supporting roof until support pressure reaches requirement, collateral backplate I 29 is stretched out, completion pair The support of tunnel lateral wall.The main support group 2 of host groups completes advance process of once taking a step.
2. tail unit course of a step:
Step 1)Support cylinder IV 311 declines, and drives longeron IV 313 and back timber IV 314 to decline, under back timber IV 314 After drop, depart from by supporting roof, be overlapped on longeron III 323.
Step 2)Connection oil cylinder 6 and passage oil cylinder II 325 retract, and two couples of passage oil cylinder III 315 stretch out, and drive two pieces Connecting plate IV 312, connecting plate IV 312 drive one step pitch of advance such as support cylinder I 311, longeron IV 313 and back timber IV 314 (About 500mm)After stop.
Step 3)Support cylinder I 311 rises, and drives longeron IV 313 and back timber IV 314 to rise, back timber IV 314 departs from Main support group longeron(Longeron III 323), reach by supporting roof until support pressure reaches requirement, tail unit pair support group 31 Complete advance process of once taking a step.
Step 4)Support cylinder III 321 declines, and drives longeron III 323 and back timber III 324 to decline, back timber III After 324 decline, depart from by supporting roof, be overlapped on longeron IV 313, collateral backplate II 33 shrinks, stop to tunnel lateral wall Support.
Step 5)Connection oil cylinder 6 and passage oil cylinder II 325 stretch out, and two couples of passage oil cylinder III 315 retract, and drive two pieces Connecting plate III 322, connecting plate III 322 drive support cylinder III 321, longeron III 323, back timber III 324 and collateral shield The grades of plate II 33 one step pitch of advance(About 500mm)After stop.
Step 6)Support cylinder III 321 rises, and drives longeron III 323 and back timber III 324 to rise, back timber III 324 depart from secondary support group longeron(Longeron IV 313), reach by supporting roof until support pressure reaches requirement, collateral backplate II 33 stretch out, and complete the support to tunnel lateral wall, and the main support group 32 of tail unit completes advance process of once taking a step.
Wherein, control aspect, host groups driving only sets a pair of passage oil cylinder I 7, and the driving of tail unit is using a pair of passage Oil cylinder II 325 and two couples of passage oil cylinder III 315, passage oil cylinder II 325 are located between two couples of passage oil cylinder III 315. Passage oil cylinder I 7, connection oil cylinder 6, passage oil cylinder II 325 can separated in time(Set according to actual parameter)Sequentially Retraction stretches out, and also can bounce back or stretch out simultaneously(Motion process as shown in Figure 7).Under normal circumstances, when passage oil cylinder I 7, When connecting oil cylinder 6, passage oil cylinder II 325 in stretching state, passage oil cylinder III 315 is in retracted state, passage oil cylinder I 7, company When meeting oil cylinder 6, passage oil cylinder II 325 in retracted state, passage oil cylinder III 315 is in stretching state, it is ensured that driving system Alternating is taken a step.
3. hard-rock tunnel cutting course:
Step 1)Base 41 is pushed out host groups in support platform 26, while driving cut panoramic table 42, cutting arm 43 and drilling machine 44 and cutterhead 45 travel forward.
Step 2)Two cutting arms 43 drive drilling machine 44 to carry out Drilling blasthole operation, big gun to be drilled on the section in tunnel After the completion of the operation of hole, two cutting arms 43 are dragged in support platform 26 to be back to inside host groups, by manually laying explosive.
Step 3)Motor driving rolling slat I, II are fallen, and the equipment at rear portion and personnel are isolated with the section in tunnel, In order to avoid injury and the equipment such as coal petrography of avalanche during driving big gun pick.After safety and big gun pick Job readiness are good, that is, implement big gun pick Operation.Treat after the completion of big gun pick operation, block roller shutter 20 and rise, two cutting arms 43 are pushed out in support platform 26, by cutting Cut first 45 pairs of top connecting plates and lateral wall carries out repairing type.Drive hoeing machine 28 takes off the coal petrography that avalanche and cut fall in shovel board 15, and coal petrography leads to Cross conveyer I 16 and conveyer II 5 is transported.Installed in the jumbolter of tail unit 3(Not shown in figure), you can at rear pair Tunnel top and lateral wall beat anchor pole and carry out permanent support.When step type tunnels the headwork that suspension device completes a step pitch Afterwards, according to above-mentioned course of a step, it is carried forward movement of taking a step.

Claims (3)

1. a kind of step type driving suspension device tunneled suitable for hard-rock tunnel, including tail unit, host groups, cutting units, screening Shutter arrangement and conveying device are kept off, host groups front end is provided with forestope, it is characterised in that:The host groups are included from the front to the back The secondary support group of the main support group of host groups and host groups being staggered:
The main support group of host groups include the front and rear two pieces connecting plate I laterally set, be separately fixed at it is vertical on front and rear two pieces of connecting plate I Two couples of support cylinder I in direction, the longeron I being disposed longitudinally on for a pair between former and later two support cylinders I, across longeron I it Between the back timber I, the collateral backplate I that is respectively hinged on the outside of longeron I that are located at respectively on support cylinder I for a pair;
The secondary support group of host groups includes the front and rear two pieces connecting plate II laterally set, is separately fixed at erecting on front and rear two pieces of connecting plate II Nogata to two couples of support cylinder II, be disposed longitudinally on for a pair between former and later two support cylinders II longeron II, across vertical A pair of back timber II respectively on support cylinder II between beam II;
A pair of passage oil cylinder I are arranged between anterior connecting plate I and the connecting plate II at rear portion;
Cutting units includes spacing support platform on connecting plate I, the drive hoeing machine panoramic table being fixed in support platform, installed in taking off Drive hoeing machine, the base in support platform, the cut horizontally rotated on base of installation panoramic table front end Panoramic table, the cutting arm being hinged on cut panoramic table, the cutterhead installed in cutting arm front end and on cutting arm Drilling machine;
Tail unit includes the main support group of tail unit being staggered from the front to the back and the secondary support group of tail unit:
The main support group of tail unit includes the front and rear two pieces connecting plate III laterally set, is separately fixed on front and rear two pieces of connecting plate III Two couples of support cylinder III of vertical direction, the longeron III being disposed longitudinally on for a pair between former and later two support cylinders III, across The back timber III that a pair between longeron III is located at respectively on support cylinder III, be respectively hinged at it is collateral on the outside of longeron III Backplate II;
The secondary support group of tail unit includes the front and rear two pieces connecting plate IV laterally set, is separately fixed at erecting on front and rear two pieces of connecting plate IV Nogata to two couples of support cylinder IV, be disposed longitudinally on for a pair between former and later two support cylinders IV longeron IV, across vertical A pair of back timber IV respectively on support cylinder IV between beam IV;
A pair of connection oil cylinders, anterior connecting plate III and anterior company are arranged between the connecting plate I at rear portion and the connecting plate IV of front portion Respectively symmetrically provided with a pair of passage oil cylinders III, anterior connecting plate III between plate IV, the connecting plate III at rear portion and rear portion connecting plate IV A pair of passage oil cylinder II are arranged between the connecting plate IV at rear portion;
It is provided with support platform and blocks shutter arrangement, blocks the angular screening that shutter arrangement includes a pair and is fixed in support platform Gear roller shutter framework, it is spacing block the slide rail in roller shutter framework, side installed therein block motor on roller shutter framework, Respectively symmetrically being located at installed in the head pulley group and auxiliary pulley group blocked on the outside of roller shutter framework, on slide rail blocks roller shutter Pass through volume between rolling slat I and rolling slat II between framework, rolling slat I or between roller shutter version II or between roller shutter version I and II Curtain connecting plate is connected, and head pulley group is arranged on the output end of motor.
2. the step type driving suspension device according to claim 1 tunneled suitable for hard-rock tunnel, it is characterised in that:Institute The shovel board being hinged in support platform that conveying device includes setting gradually is stated, is arranged in host groups and is connected with shovel board output end Conveyer I and the conveyer II that is arranged in tail unit, conveyer I be located at by longeron I, II and back timber I, II and support cylinder In the gantry structure that I, II and connecting plate I, II are constituted, conveyer II is located at by longeron III, IV and back timber III, IV and support cylinder In the gantry structure that III, IV and connecting plate III, IV are constituted.
3. the step type driving suspension device according to claim 1 tunneled suitable for hard-rock tunnel, it is characterised in that:Institute Tail machine group end is stated provided with jumbolter.
CN201610119970.2A 2016-03-03 2016-03-03 Suspension device is tunneled suitable for the step type that hard-rock tunnel is tunneled Active CN105569701B (en)

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AU2018311427A1 (en) * 2017-07-31 2020-03-19 Drilling Technical Services (Pty) Ltd Mobile underground tunnel borer arrangement
CN108049868A (en) * 2017-12-07 2018-05-18 辽宁工程技术大学 The method that itself there is the continuous miner of branch protective function and mined with the coalcutter

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SU589393A1 (en) * 1975-06-02 1978-01-25 Erpylev Viktor M Entry-driving machine
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CN101769158B (en) * 2008-12-30 2012-04-18 三一重型装备有限公司 Excavating, supporting and bolting integrated self-contained machine
CN102128040B (en) * 2011-01-18 2012-12-12 阜新工大科技发展有限公司 Hydraulic striding-type advanced-support equipment
CN202391424U (en) * 2011-12-13 2012-08-22 单淑花 Supporting type comprehensive bolter miner
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