CN109611112B - Multi-head rock drilling machine for tunnel excavation and tunneling - Google Patents
Multi-head rock drilling machine for tunnel excavation and tunneling Download PDFInfo
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- CN109611112B CN109611112B CN201910108317.XA CN201910108317A CN109611112B CN 109611112 B CN109611112 B CN 109611112B CN 201910108317 A CN201910108317 A CN 201910108317A CN 109611112 B CN109611112 B CN 109611112B
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- 239000011435 rock Substances 0.000 title claims abstract description 167
- 238000005553 drilling Methods 0.000 title claims abstract description 77
- 238000009412 basement excavation Methods 0.000 title claims abstract description 50
- 230000005641 tunneling Effects 0.000 title claims abstract description 15
- 238000010276 construction Methods 0.000 claims abstract description 37
- 239000000725 suspension Substances 0.000 claims abstract description 36
- 230000007246 mechanism Effects 0.000 claims description 33
- 238000009434 installation Methods 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000009826 distribution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 241001270131 Agaricus moelleri Species 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms
- E21D9/122—Working or loading platforms
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a multi-head rock drilling machine for tunnel excavation and tunneling, which comprises a tunnel excavation trolley with a plurality of layers of working platforms, wherein the tunnel excavation trolley is provided with a plurality of rock drilling machines capable of automatically feeding through the working platforms. Preferably, the rock drill arranged through the working platform is suspended below the corresponding working platform by a truss manipulator or a suspension device, and the rock drill is connected to the suspension arm in a lifting and adjusting manner; an arc-shaped track imitating a tunnel wall is arranged on the tunnel excavation trolley; the tunnel excavation trolley is also provided with a plurality of rock drills through an arc-shaped track; the arc-shaped track is formed by a fixed track and a movable track to imitate a tunnel wall arc-shaped structure; the fixed track is arranged through the top-layer operation platform, and the movable track is arranged through the lower-layer operation platform below the top-layer operation platform. The invention has the beneficial effects that a plurality of rock drills capable of automatically feeding are arranged through the multi-layer trolley, so that the structure is simplified, and the manufacturing cost and the tunnel construction cost are reduced.
Description
Technical Field
The invention relates to tunnel construction facilities, in particular to a multi-head rock drilling machine for tunnel excavation and tunneling.
Background
Along with the acceleration of the construction speed of domestic high-speed rail, the construction facility technology of the high-speed rail tunnel is also continuously advancing. The tunnel excavation is a part of tunnel construction, and the excavation mode is designed according to the conditions such as the surrounding rock grade of the tunnel when the tunnel is excavated. The existing tunnel excavation mode mainly comprises full-face excavation, two-step excavation, three-step excavation and the like. The existing excavation operation trolley is usually in a fixed structure form and can only adapt to one excavation mode, so that the application range of the existing excavation operation trolley is limited, the existing excavation operation trolley cannot adapt to the change of the excavation mode to carry out structural change, and the existing excavation operation trolley is more difficult to recycle. In addition, in the construction of hard rock tunneling, blasting work is required to be performed by constructing blast holes. At present, a rock drilling machine is mainly used for drilling operation, and drilling operation equipment comprises a large-scale rock drilling machine, a telescopic support leg type rock drilling machine and the like. The utility model provides a flexible landing leg formula rock drilling machine belongs to portable unit operation equipment, including rock drilling machine host computer and articulated flexible landing leg, the support end of landing leg supports and leans on the rock mass, and the rock drilling machine host computer is articulated through atmospheric pressure or hydraulic pressure flexible landing leg and is supported, the manual work of supporting. The construction cost is low, and the method is widely applied to actual tunnel construction. However, the labor intensity is high because the drilling machine is supported by manpower, the number of the working points on the same working surface, which can simultaneously perform the drilling operation, is greatly limited, and the construction efficiency is low. The large-scale rock drilling machine consists of a plurality of rock drilling arms, a hydraulic or pneumatic slipway is arranged on the rock drilling arms, a main machine of the rock drilling machine is fixedly connected to the slipway, and the slipway is pushed to move by a hydraulic cylinder or an air cylinder to realize rock drilling and tunneling. Which works simultaneously with a plurality of drilling arms. Therefore, the rock drilling efficiency is high and the labor intensity is low. But the existing large-scale rock drilling machine has complex structure, high manufacturing cost and extremely low popularity. Meanwhile, the length of the drill rod of the two rock drilling devices is limited by the stroke of the hydraulic cylinder or the air cylinder or the telescopic length of the supporting leg, when the drilling depth needs to be increased, the drilling depth can be increased only by adding the drill rod after retracting the sliding table or contracting the supporting leg, and the operation is complex. For this reason, there is a need for a multi-headed rock drill with a simple construction.
Disclosure of Invention
The invention aims to overcome the defects of complex structure and high manufacturing cost of a multi-head rock drilling machine in the prior art, and provides the multi-head rock drilling machine for tunnel excavation and tunneling.
In order to achieve the above purpose, the present invention adopts the following technical scheme.
The utility model provides a tunnel excavation tunnelling is with bull rock drill, includes the tunnel excavation platform truck that has multilayer work platform, and the tunnel excavation platform truck is equipped with many rock drills that can automatic feeding through work platform.
According to the invention, the plurality of automatic feeding rock drills are arranged through the tunnel excavation trolley of the multi-layer working platform, and the plurality of rock drills are distributed according to the tunnel tunneling construction mode, including the corresponding distribution modes of full-face tunneling and step tunneling; the rock drill can be fixedly arranged on the trolley according to the drilling position and the angle, or the drilling position and the angle can be adjusted and arranged on the trolley; for flat-top small-section tunnels, a full-section tunneling mode is usually adopted for excavation, and under the condition that a blast hole is drilled in a straight line along the tunneling direction of the tunnels, a rock drill is usually fixedly connected to an excavation trolley in a mode of fixing drilling positions and angles; when the tunnel section has an arch structure, an arc arch imitating a tunnel wall is usually required to be arranged for arranging a rock drill; when the full-section method is adopted for construction, the rock drill is usually fixedly connected to the excavation trolley in a mode of fixing drilling positions and angles; in order to reduce the number of the rock drills, part of the rock drills can also be arranged on the excavation trolley in a setting mode with adjustable drilling positions and angles; when the step method is adopted for construction, the excavation trolley can be made into a combined structure with an upper layer and a lower layer, and a trolley structure that the upper layer trolley can self-walk relative to the lower layer trolley is adopted, and the trolleys on the corresponding layers are symmetrically provided with at least two rock drills. The corresponding rock drill can adopt a single-head hydraulic rock drill or a telescopic supporting leg type rock drill, and the stepping type self-walking rock drill is formed by arranging a track and a control system. The invention forms a multi-head rock drilling machine through the rock drilling machines, and each rock drilling machine forms an independent operation unit and is independently controlled and operated, compared with the existing multi-head rock drilling machine, the invention has the advantages of simple structure, low manufacturing cost and low tunnel construction cost; compared with manual operation by adopting a telescopic support leg rock drilling machine, the rock drilling machine on the trolley can be operated simultaneously, and the angle and the position of the drilling machine can be properly adjusted by manpower when necessary, so that the construction efficiency is obviously improved compared with the manual operation by manually operating the telescopic support leg rock drilling machine. When the corresponding trolley adopts at least two layers of trolley structures with independent walking power, the trolley can be well suitable for full-section construction, double-step construction or three-step construction modes. When the upper layer trolley is positioned on the bottom layer trolley, the double-step construction method is suitable for full-section construction, and when the double-step construction is carried out, the upper layer trolley is driven away from the bottom layer trolley as a whole to carry out upper-step operation, and the bottom layer trolley correspondingly carries out lower-step operation. When the upper layer trolley is of a double-layer trolley structure, namely, the upper layer trolley is of a double-layer trolley structure with independent power, the upper layer trolley is separated from the lower layer trolley, so that the construction of the upper step and the middle step can be realized, and the construction of a three-step method is realized by matching the lower layer trolley with the operation of the lower layer trolley. Therefore, the purpose that the same trolley is used for multiple excavation modes is achieved by driving away or driving back to stop the upper trolley, the utilization value and the utilization rate of the trolley can be effectively improved, the construction preparation time is saved, the construction efficiency is improved, and the construction cost is reduced. Wherein, the power of trolley walking is preferably from electric or hydraulic.
Preferably, the rock drill set up by the working platform is suspended below the corresponding working platform by a truss manipulator or suspension means. The drilling angle and the drilling position are convenient to adjust, and the maintenance is convenient; when the scheme of the truss manipulator is adopted, market purchase can be performed so as to reduce self-made parts and processing amount, improve manufacturing efficiency, and the corresponding truss manipulator can also be replaced by a robot; the use of the suspension means in the solution of suspension reduces the manufacturing costs, wherein the suspension means should suspend the rock drill by means of at least two suspension points, preferably the suspension means has an adjustable construction in the position of the suspension points formed on the rock drill.
Further preferably, the suspension device comprises a rail, a slider and a boom; the track is horizontally arranged, fixed with the corresponding operation platform and positioned below the operation platform; the sliding block is suspended on the track with adjustable position; the suspension arm is suspended on the sliding block; the rock drill is arranged by at least two suspension arms distributed along the length direction of the rock drill. The suspension device forms at least two lifting points with adjustable positions on the rock drill so as to conveniently adjust the relative positions of the rock drill and the trolley, thereby realizing the adjustment of the drilling position and the drilling angle in the same plane.
Still further preferably, the rock drill is connected to the boom in a lifting and lowering adjustable manner. Thereby achieving the adjustment of the drill position in the height direction and the adjustment of the pitch angle.
Still further preferably, the track is comprised of a first track and a second track, the first track and the second track being disposed non-collinearly. At least two lifting points are arranged through the two tracks, so that the plurality of lifting points can be reasonably distributed on the rock drill conveniently, the rock drill is ensured not to deform, and the operation reliability and the service life are improved. The non-collinear arrangement of the two guide rails means that the two guide rails are not arranged on the same straight line, including parallel arrangement and non-parallel cross arrangement; of course, the two guide rails can be arranged in the same plane or arranged in a staggered way; so as to meet the principles of position adjustment and reasonable arrangement of lifting points on the rock drill.
Still further preferably, the first rail and the second rail are arranged in a square shape; one of the first rail and the second rail is arranged along the longitudinal direction of the trolley, and the other rail is arranged along the transverse direction of the trolley and extends from the edge of the trolley to the middle. So as to meet the requirement of larger adjustment amplitude of the position of the lifting point.
Preferably, the stepping self-walking rock drill comprises a rock drilling host, a telescopic supporting leg, a first locking mechanism and a second locking mechanism; the rock drilling host and the telescopic support legs are respectively fixed on a host sliding table and a support leg sliding table, and the host sliding table and the support leg sliding table are movably arranged on a rock drilling machine track; one end of the telescopic support leg is connected to the main machine sliding table, and the other end of the telescopic support leg is connected to the support leg sliding table; the first locking mechanism is formed between the host slipway and the rock drill track; the second locking mechanism is formed between the support leg slipway and the rock drill track; the first locking mechanism and the second locking mechanism have the same structure; the rock drill track is fixedly mounted through a rock drill mounting seat, and the rock drill mounting seat is longitudinally and adjustably connected to the rock drill track. When the first locking mechanism is in a locking state and the second locking mechanism is in an unlocking state, the supporting leg sliding table is fixed with the track of the rock drill, and the rock drilling host machine performs rock drilling operation under the pushing of the telescopic supporting legs, so that manpower is not required to support and push, the labor intensity can be effectively reduced, and the construction efficiency is remarkably improved. After the travel of the supporting leg reaches a set value, the first locking mechanism is unlocked and the second locking mechanism is locked after the single rock drilling operation is completed; and the telescopic support leg is contracted to pull the support leg sliding table to move a set value towards the rock drilling feeding direction, and then the first locking mechanism is locked, and the second locking mechanism is unlocked to carry out secondary drilling of the rock drill. And the circulation is performed, so that multiple times of drilling can be realized without replacing the drill rod when the drill rod stretches out and draws back for a plurality of times of supporting legs. So as to effectively improve the production efficiency, or obviously improve the rigidity of the supporting leg and prolong the service life. When the rock drilling host is retreated, the first locking mechanism is locked, the second locking mechanism is unlocked, and the telescopic supporting legs retract; or the first locking mechanism is unlocked, the second locking mechanism is locked, and the telescopic supporting legs extend out, so that gradual backspacing of the rock drilling host can be realized. The device has the advantages of simple structure, convenient operation, labor saving, low labor intensity and high construction efficiency; and can conveniently realize automatic control. The two locking mechanisms in this solution comprise locking means constituted by mechanical structural members, as well as fixing means coupled by electromagnetic forces. Wherein, the movable locking component in the locking device formed by the mechanical structural components can be driven electrically, hydraulically or pneumatically. Such as an electromagnet, a hydraulic cylinder or an air cylinder, etc. The rock drill track can be bent into a two-section integrated structure, and the rock drill track is suitable for the situation that the operation space is relatively narrow, and is inconvenient to arrange in the construction environment of the long guide rail.
Preferably, the tunnel excavation trolley is provided with an arc-shaped track imitating a tunnel wall; the tunnel excavation trolley is also provided with a plurality of rock drills which can be automatically fed through arc-shaped tracks. So as to be suitable for the construction of arc-shaped tunnels, and a rock drill arranged through an arc-shaped track mainly drills a peripheral hole and an auxiliary hole which are close to the wall of the tunnel.
Further preferably, the arc-shaped track is formed by a fixed track and a movable track to imitate a tunnel wall arc-shaped structure; the fixed rail is arranged through the top-layer operation platform, the movable rail is arranged through the lower-layer operation platform below the top-layer operation platform, the movable rail is fixedly connected with the lower-layer operation platform, the lower-layer operation platform is radially telescopic and arranged on the trolley framework, and a driving oil cylinder is connected between the lower-layer operation platform and the trolley framework. So as to realize the adjustment of the peripheral holes and the auxiliary hole drilling positions and meet the drilling position requirements.
The invention has the beneficial effects that a plurality of rock drills capable of automatically feeding are arranged through the multi-layer trolley, so that the structure is simplified, and the manufacturing cost and the tunnel construction cost are reduced.
Drawings
Fig. 1 is a schematic front view of the structure of the present invention.
Fig. 2 is a schematic side view of the structure of the present invention.
Fig. 3 is a schematic front view of the rock drill according to the invention.
Fig. 4 is a bottom view of fig. 3 in the present invention.
Fig. 5 is a schematic view of the construction of the locking mechanism in the rock drill of the present invention.
Fig. 6 is a schematic structural isometric view of a tunnel excavation trolley in the present invention.
Fig. 7 is a schematic view of a construction of the rock drill according to the present invention in a suspended manner.
Fig. 8 is a top view of fig. 7 in accordance with the present invention.
Detailed Description
The invention will be further described with reference to the accompanying drawings, which are not intended to limit the invention to the embodiments described.
Referring to fig. 1, 2, 3, 5, 6, 7 and 8, a multi-head rock drill for tunneling and tunneling comprises a tunnel-excavating trolley 100 with a plurality of layers of working platforms, wherein the tunnel-excavating trolley 100 is provided with a plurality of rock drills 300 capable of automatically feeding through the working platforms; the rock drill 300 provided by the working platform is suspended below the corresponding working platform by suspension means. The tunnel excavation trolley 100 comprises a bottom layer trolley 1 and an upper layer trolley arranged on the bottom layer trolley 1; the upper layer trolley consists of a middle layer trolley 3 and a top layer trolley 4, and the middle layer trolley 3 can longitudinally walk relative to the bottom layer trolley 1; the top layer trolley can longitudinally walk relative to the middle layer trolley 3, and the middle layer trolley 3 and the top layer trolley 4 both have independent walking power; the running power is provided by a motor, and the driving and running modes comprise the same driving and running modes of a purely electric wheeled vehicle or the same driving and running modes of a rail vehicle; the rock drill 300 is mainly a step-by-step self-walking rock drill structure consisting of a telescopic leg rock drill.
Wherein, arc-shaped track 200 imitating the wall of the tunnel is arranged on tunnel excavation trolley 100; the tunnel excavation trolley 100 is further provided with a plurality of rock drills 300 through the arc-shaped rails 200, and the rock drills 300 are distributed with two arc-shaped rails 200 along the length direction. The arc track 200 is an arc structure imitating the tunnel wall formed by a fixed track 210 and a movable track 220; the fixed rail 210 is arranged through the operation platform of the top-layer trolley 4, the movable rail 220 is arranged through the corresponding operation platforms of the middle-layer trolley 3 and the bottom-layer trolley 1 below the top-layer operation platform, the movable rail 220 is fixedly connected with the corresponding operation platform, the corresponding operation platforms of the middle-layer trolley 3 and the bottom-layer trolley 1 are arranged on the corresponding trolley frameworks in a radial telescopic manner, and a driving oil cylinder 400 is connected between the corresponding operation platform and the trolley frameworks. Specifically, the arc-shaped track 200 is fixedly connected to an arc-shaped arch frame, the arc-shaped arch frame is formed by a plurality of sections to imitate a tunnel wall arc structure, the corresponding section of the arc-shaped arch frame is fixedly connected with a corresponding operation platform, so that the strength and the rigidity of the arc-shaped track 200 are ensured, and the long service life of the drilling machine is ensured.
The suspension device comprises a track 401, a slider 402 and a boom 403; the track 401 is horizontally arranged, fixed with the corresponding operation platform and positioned below the operation platform; the sliding block 402 is suspended on the track 401 in a position adjustable manner; the suspension arm 403 is suspended on the sliding block 402, and the suspension arm 403 is hinged with the sliding block 402 through a vertically arranged hinge pin, so that the angle position adjustment in the horizontal plane is realized through the rotation of the suspension arm 403 around the hinge pin, and the requirement of the position change of the suspension arm 403 when the drilling position and the angle adjustment of the rock drill 300 are met; the rock drill 300 is arranged by means of two said suspension arms 403 distributed along the length of the rock drill 300, the suspension means forming at least two position-adjustable suspension points on the rock drill 300. The rock drill 300 is connected to the boom 403 in a lifting and lowering adjustable manner. The track 401 is composed of a first track 401a and a second track 401b, and the first track 401a and the second track 401b are arranged in a non-collinear manner. Specifically, the first track 401a and the second track 401b are arranged in an angle square shape; one of the first track 401a and the second track 401b is arranged longitudinally along the trolley and the other track is arranged transversely along the trolley and extends centrally from the trolley edge. The second rail 401b in this embodiment is arranged longitudinally along the carriage; the first rail 401a is arranged in the lateral direction of the carriage.
The stepping self-walking rock drill comprises a rock drilling host 301, a telescopic supporting leg 302, a first locking mechanism and a second locking mechanism; the rock drilling host 301 and the telescopic support legs 302 are respectively fixed on a host sliding table 303 and a support leg sliding table 304, and the host sliding table 303 and the support leg sliding table 304 are movably arranged on a rock drilling machine track 305; one end of the telescopic support leg 302 is connected to the host sliding table 303, and the other end of the telescopic support leg is connected to the support leg sliding table 304; a first locking mechanism is formed between the main machine slipway 303 and the rock drill track 305; the second locking mechanism is formed between the leg ramp 304 and the rock drill track 305; the first locking mechanism and the second locking mechanism have the same structure; the rock drill track 305 is fixedly installed through the rock drill mounting seat 306, the rock drill mounting seat 306 is longitudinally and adjustably connected to the rock drill track 305, and the rock drill mounting seat 306 is also connected to the suspension arm 403 in a lifting manner; the rock drill 300 arranged on the arc-shaped track 200 is arranged through the rock drill mounting seat 306, the corresponding rock drill mounting seat 306 is connected to the arc-shaped track 200 in a position adjustable manner, and the position adjustment of the rock drill 300 is realized through the adjustment of the mounting position of the corresponding rock drill mounting seat 306; the rock drill mounting seat 306 is of a left-right combined structure, the left side part of the rock drill rail 305 is connected, and the right side part of the rock drill rail is connected with the suspension arm 403; the left part and the right part are connected through a rotating shaft so as to realize the pitching angle adjustment of the rock drill 300, thereby adapting to the drilling position and the angle requirement of the auxiliary hole. The rock drill 300 provided on the movable rail 220 of the arc-shaped rail 200 can be used for drilling the peripheral hole and the auxiliary hole by adjusting the telescopic and pitching angles of the corresponding platform; the rock drill 300 provided by the suspension means is mainly used for drilling peripheral holes and cored holes.
The first locking mechanism and the second locking mechanism comprise a movable lock tongue 311 and a fixed locking seat, and the movable lock tongue 311 is composed of a piston rod of a locking cylinder 307; the fixed locking seats of the two locking mechanisms are each formed by a rock drill track 305; the rock drill track 305 is provided with a locking hole 314 cooperating with the movable bolt 311. The locking hole 314 is provided on the connecting member 305b, and the connecting member 305b is fixed between two parallel rail members 305 a; the connecting member 305b and the two parallel guide members 305a together constitute a rock drill track 305.
The host sliding table 303 and the supporting leg sliding table 304 comprise a sliding table main body, rollers 308 are arranged on two sides of the sliding table main body, and the rollers 308 are in rolling connection with the outer sides of the guide rail members 305a on the corresponding sides. At least 4 rollers which are symmetrically distributed left and right are arranged on the host sliding table 303, each roller 308 is arranged through a corresponding wheel shaft 309, the wheel shafts 309 are detachably fixed on the corresponding sliding table, and bearings 310 are arranged between the rollers 308 and the wheel shafts 309; the bearing 310 may be a rolling bearing, a sliding bearing, or a needle bearing; the sliding bearing or the needle roller bearing is adopted to facilitate the compact structure of the sliding table. Wherein, the guide rail member 305a is made of a circular tube, and the roller 308 is in an arc grooved wheel structure; the connecting member 305b may be made of a rectangular tube, or may be constituted by one connecting plate or two connecting plates; the locking hole 314 is formed on a side wall or a connecting plate, which is close to the locking cylinder 307, of the rectangular pipe or the two connecting plates; of course, the locking holes preferably extend through both side walls or both webs to avoid dust build up inside the rail. The locking holes 314 are a plurality of strip holes uniformly distributed in the length direction of the connecting plate, and the strip holes are adopted to facilitate the insertion of the lock tongue; and drilling depth control can be realized by using the distribution positions of the locking holes, and the drilling depth precision can be controlled by using the strip-shaped locking hole structure form.
The rail member 305a of the rock drill may be made of section steel such as i-steel, rectangular pipe, round steel, square steel, etc.
The rock drill rail 305 is folded to form a fold line shape, and the folding direction is the direction of approaching from the upper side of the rail 305. The connection mode of the telescopic support leg 302 and the rock drilling main machine 301 can also be directly the connection mode of the gas leg rock drill in the factory state, and the connection of the telescopic support leg 302 and the support leg sliding table 304 can also be hinged by a simple straight shaft.
The bottom layer trolley 1 is loaded on a wheel type frame 2; the fixed rail 210 is fixedly connected to the top-level cart 4. The middle part of the herringbone framework of the bottom layer trolley 1 is hung with the rock drill 300 by adopting the suspension device, and the rock drill 300 at the position is used for drilling a core-drawing blast hole of a tunnel face.
In this embodiment, the middle layer trolley 3 and the top layer trolley 4 in the tunnel excavation trolley 100 can be driven away from the immediately lower layer trolley by a hanging bridge, a construction trestle or a telescopic rail bridge. The trestle has the same structure as the trestle constructed in the prior art which is frequently used in the field, belongs to a simple bridge temporary facility and is not needed to be described in detail.
The suspension device in this embodiment may be replaced with a truss manipulator mature in the prior art; accordingly, the rock drill 300 of the present embodiment can be conveniently automatically controlled by the well-known industrial control technology. When the truss manipulator is used for setting the rock drill 300, the drilling position and the drilling machine angle are correspondingly adjusted, so that intelligent automatic control can be realized.
The rock drill 300 in this embodiment may also be replaced with a hydraulically fed hydraulic rock drill.
In this embodiment, the two rails 401 of the suspended rock drill may also be arranged in parallel, or alternatively, in other angular cross arrangements, such as non-straight edges.
The foregoing describes in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the invention by one of ordinary skill in the art without undue burden. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.
Claims (8)
1. The multi-head rock drilling machine for tunnel excavation and tunneling is characterized by comprising a tunnel excavation trolley (100) with a plurality of layers of operation platforms, wherein the tunnel excavation trolley (100) is provided with a plurality of rock drilling machines (300) capable of automatically feeding through the operation platforms; the rock drill (300) is composed of a stepping self-walking rock drill, and the stepping self-walking rock drill comprises a rock drill main machine (301), a telescopic supporting leg (302), a first locking mechanism and a second locking mechanism; the rock drilling host (301) and the telescopic support legs (302) are respectively fixed on a host sliding table (303) and a support leg sliding table (304), and the host sliding table (303) and the support leg sliding table (304) are movably arranged on a rock drilling machine track (305); one end of the telescopic support leg (302) is connected to the host sliding table (303), and the other end of the telescopic support leg is connected to the support leg sliding table (304); the first locking mechanism is formed between the main machine sliding table (303) and the rock drill track (305); the second locking mechanism is formed between the leg slipway (304) and the rock drill track (305); the first locking mechanism and the second locking mechanism have the same structure; the rock drill track (305) is fixedly installed through a rock drill installation seat (306), and the rock drill installation seat (306) is longitudinally and adjustably connected to the rock drill track (305); the rock drill mounting seat (306) is also connected to the suspension arm (403) in a lifting manner, the rock drill mounting seat (306) is of a left-right combined structure, the left part is connected with the rock drill track (305), and the right part is connected with the suspension arm (403); the left part and the right part are connected through a rotating shaft so as to realize the pitching angle adjustment of the rock drill (300), thereby adapting to the drilling position and angle requirements of the auxiliary hole.
2. A multi-head rock drill rig for tunnel excavation driving according to claim 1, characterized in that the rock drill (300) set up by a working platform is suspended below the corresponding working platform by suspension means.
3. A multi-head rock drill for tunnel excavation and tunnelling as claimed in claim 2 wherein the suspension means is constituted by a truss manipulator; alternatively, the suspension device comprises a track (401), a slider (402) and a boom (403); the track (401) is horizontally arranged, fixed with the corresponding operation platform and positioned below the operation platform; the sliding block (402) is suspended on the track (401) with adjustable position; the suspension arm (403) is suspended on the slider (402); the rock drill (300) is arranged by at least two suspension arms (403) distributed along the length direction of the rock drill (300).
4. A multi-head rock drill for tunnel excavation driving as claimed in claim 3, wherein in a construction in which the suspension means comprises a rail (401), a slider (402) and a boom (403), the rock drill (300) is connected to the boom (403) in a liftable and adjustable manner.
5. A multi-head rock drill for tunnel excavation driving as claimed in claim 3, wherein in a construction in which the suspension means comprises a rail (401), a slider (402) and a boom (403), the rail (401) is composed of a first rail (401 a) and a second rail (401 b), the first rail (401 a) and the second rail (401 b) being arranged non-collinearly.
6. A multi-head rock drill for tunnel excavation driving according to claim 5, characterized in that the first track (401 a) and the second track (401 b) are laid in an angle square shape; one of the first track (401 a) and the second track (401 b) is arranged longitudinally along the trolley, and the other track is arranged transversely along the trolley and extends from the edge of the trolley towards the middle.
7. The multi-head rock drill for tunnel excavation and tunnelling as claimed in any one of claims 1 to 6, wherein the tunnel excavation trolley (100) is provided with an arc-shaped track (200) imitating a tunnel wall; the tunnel excavation trolley (100) is also provided with a plurality of rock drills (300) capable of automatically feeding through an arc-shaped track (200).
8. The multi-head rock drill for tunnel excavation and driving according to claim 7, wherein the arc-shaped rail (200) is composed of a fixed rail (210) and a movable rail (220) to form a tunnel wall imitating arc-shaped structure; the fixed rail (210) is arranged through a top-layer operation platform, the movable rail (220) is arranged through a lower-layer operation platform below the top-layer operation platform, the movable rail (220) is fixedly connected with the lower-layer operation platform, the lower-layer operation platform can be radially and telescopically arranged on the trolley framework, and a driving oil cylinder (400) is connected between the lower-layer operation platform and the trolley framework.
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| CN201910108317.XA CN109611112B (en) | 2019-01-30 | 2019-01-30 | Multi-head rock drilling machine for tunnel excavation and tunneling |
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| CN111119746A (en) * | 2020-01-20 | 2020-05-08 | 涪特智能装备（重庆）有限公司 | Stepping rock drill with drill withdrawal device |
| CN111322008B (en) * | 2020-03-30 | 2021-08-03 | 山西省交通规划勘察设计院有限公司 | Full section drill jumbo in semi-automatization tunnel |
| CN112627482B (en) * | 2020-11-18 | 2022-05-27 | 中交一公局厦门工程有限公司 | Tunnel construction is with removing flexible platform |
| CN113982644B (en) * | 2021-10-21 | 2024-05-03 | 中国化学工程第十六建设有限公司 | Tunnel arc-shaped formwork frame lining device and method |
| CN115434364B (en) * | 2022-08-31 | 2023-08-08 | 中国二十冶集团有限公司 | Spiral tunneling device for non-excavation pushing laying of underground gallery type structure |
| CN117514021B (en) * | 2024-01-03 | 2024-05-03 | 陕西路桥集团有限公司 | Tunnel drilling equipment with cooling and flushing functions and drilling method |
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