CN109339814B - Full-face chain type tunneling assembly tunneling machine - Google Patents
Full-face chain type tunneling assembly tunneling machine Download PDFInfo
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- CN109339814B CN109339814B CN201811186155.3A CN201811186155A CN109339814B CN 109339814 B CN109339814 B CN 109339814B CN 201811186155 A CN201811186155 A CN 201811186155A CN 109339814 B CN109339814 B CN 109339814B
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- 230000005641 tunneling Effects 0.000 title claims abstract description 54
- 230000005540 biological transmission Effects 0.000 claims abstract description 88
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 55
- 239000010959 steel Substances 0.000 claims abstract description 55
- 239000002689 soil Substances 0.000 claims abstract description 40
- 238000005192 partition Methods 0.000 claims abstract description 25
- 238000010276 construction Methods 0.000 claims abstract description 19
- 230000007246 mechanism Effects 0.000 claims description 37
- 239000004746 geotextile Substances 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 7
- 101150054854 POU1F1 gene Proteins 0.000 description 5
- 239000004744 fabric Substances 0.000 description 3
- 238000011065 in-situ storage Methods 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- E21D9/11—Making by using boring or cutting machines with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines
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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)
- Supports For Pipes And Cables (AREA)
Abstract
The invention discloses a full-face chain type tunneling assembly tunneling machine, which is arranged in an originating foundation pit and can move forward along a tunneling direction, and comprises the following components: a pair of support side plates disposed relatively vertically; a partition plate arranged between the pair of support side plates for separating the space between the pair of support side plates into an excavating bin positioned at the front side and an assembling bin positioned at the rear side; a plurality of chain drives spaced apart on the partition and positioned in the dredging bin; the chain transmission surface of each chain transmission device faces the support surface, and a plurality of steel plates and a plurality of soil planing steel teeth are arranged on the chain transmission surface of the chain transmission device along the transmission direction; when the chain transmission device transmits, the plurality of soil planing steel teeth arranged on the chain transmission surface of the chain transmission device do not break the digging sub-surface, and the steel plate continuously transmits soil layers planed by the soil planing steel teeth to the upper part of the originating foundation pit. The invention has the advantages of no need of support, convenient construction and the like, and can be widely applied to the technical field of full-face chain type tunneling assembly heading machines.
Description
Technical Field
The invention relates to the technical field of full-face chain type tunneling assembly heading machines. More particularly, the invention relates to a full-face chain type tunneling assembly tunneling machine.
Background
With the development of economy, the number of urban vehicles is increased in an explosive manner, and in a certain time and area, the existing traffic environment network cannot meet the urban development requirement, so that traffic jam is caused. In order to solve the problem, three-dimensional traffic forms are increasingly adopted on nodes of urban arterial roads, spaces of different levels of cities are reasonably utilized, and viaducts or urban underpass tunnels are arranged. Compared with viaducts or other modes, the underpass tunnel has the advantages that motor vehicles are not interfered, pass through quickly, the ground still keeps the original traffic conversion function, the influence on surrounding landscapes is small, and the like, and is gradually increased in urban road construction in recent years, and particularly, the underpass tunnel is very popular in the application of urban crossroads or intersection sections with more jams.
The traditional construction method of the urban underpass tunnel is mainly based on open cut cast-in-situ construction. The open cut method is used for construction, the foundation pit support and the waterproof curtain are arranged, the construction time is long, the occupied road is wide, the cast-in-situ construction noise is large, the site construction waste is large, the carbon discharge capacity is large, the interference to residents and the influence on the building are large, the cast-in-situ concrete quality of the underpass tunnel structure is not guaranteed, and the comprehensive construction cost is high. In summary, no device can rapidly excavate and backfill earthwork and complete a tunneling construction under the conditions of no supporting structure and no pipeline transition.
Disclosure of Invention
The invention aims to provide a full-face chain type tunneling assembly tunneling machine which does not need support and is convenient to construct.
To achieve these objects and other advantages and in accordance with the purpose of the invention, there is provided a full face chain type driving pin machine provided at an originating foundation pit and movable forward in a driving direction, comprising:
a pair of support side plates disposed relatively vertically;
a partition plate arranged between the pair of support side plates for separating the space between the pair of support side plates into an excavating bin positioned at the front side and an assembling bin positioned at the rear side;
a plurality of chain drives spaced apart on the partition and positioned in the dredging bin; the chain transmission surface of each chain transmission device faces the support surface, and a plurality of steel plates and a plurality of soil planing steel teeth are arranged on the chain transmission surface of the chain transmission device along the transmission direction;
when the chain transmission device transmits, the plurality of soil planing steel teeth arranged on the chain transmission surface of the chain transmission device do not break the digging sub-surface, and the steel plate continuously transmits soil layers planed by the soil planing steel teeth to the upper part of the originating foundation pit.
Preferably, the chain transmission device comprises:
the chain wheels are arranged at two ends of the pair of fixed plates in a circumferential rotating way, and one chain wheel is connected with the power mechanism and driven to rotate by the power mechanism;
the chain is tensioned between the pair of chain wheels, meshed with the chain wheels and driven by the power mechanism to drive;
each chain transmission device is arranged on the partition plate through an adjusting mechanism, and the adjusting mechanism can adjust the included angle between the transmission surface of the chain transmission device and the support surface.
Preferably, the adjusting mechanism includes:
the positioning pin shafts are fixed on the front side above the partition plate along the direction perpendicular to the pair of support side plates, and one ends of a pair of fixing plates of the chain transmission device vertically penetrate through the positioning pin shafts so that the chain transmission device can rotate around the positioning pin shafts;
the two ends of the fixed pin shaft vertically penetrate out of the other ends of the pair of fixed plates and are fixed;
the non-telescopic end of the telescopic mechanism is arranged in the partition board, and the telescopic end of the telescopic mechanism extends out of the partition board and is hinged with one end of the fixed pin shaft;
when the telescopic end of the telescopic mechanism stretches, the chain transmission device can rotate around the positioning pin shaft, so that an included angle between a transmission surface of the chain transmission device and a support surface is adjusted.
Preferably, the number of the chain transmission devices is eight, and the chain transmission devices are arranged in groups, the distance between the chain transmission devices is 150mm-200mm, and each group of the chain transmission devices is used with one adjusting mechanism.
Preferably, the upper end surfaces of the supporting side plates are provided with vertical soil retaining plates parallel to the supporting side plates.
Preferably, the soil retaining plate is divided into a plurality of pieces along the tunneling direction, and each soil retaining plate is detachably fixed on the upper end face of the corresponding supporting side plate, so that the soil retaining plate can be conveniently detached when the soil retaining plate needs to be detached through the embedded pipeline.
Preferably, the support side plate is divided into a first sub-guard plate and a second sub-guard plate along the tunneling direction, and the first sub-guard plate and the second sub-guard plate are hinged, so that the second sub-guard plate can swing in a direction perpendicular to the tunneling direction.
Preferably, the soil blocking plate comprises, in order from top to bottom:
the sleeve plate is in a plate type shell shape with an open lower end, and a plurality of square rods which are uniformly spaced along the tunneling direction and vertically arranged are arranged on the inner wall of one vertical side surface of the sleeve plate;
the upper end of the structural plate can just extend into the inner cavity of the sleeve plate in a vertically sliding way; the structure plate comprises a plurality of square steel plates which are vertically arranged on the upper end face of the supporting plate and are uniformly arranged at intervals along the tunneling direction of the supporting plate, and adjacent square steel plates are connected through geotextile to form a square seamless retaining surface; the square steel plates are in one-to-one correspondence with the square rods, the side surfaces of the square steel plates opposite to the corresponding square rods are inwards sunken to form a guide groove which is vertically penetrated and matched with the square rods, and the guide groove accommodates the corresponding square rods to form a guide for the up-and-down sliding of the structural plates;
the supporting plates are vertically arranged on the upper end faces of the corresponding supporting side plates, the upper end faces of the supporting plates are used for supporting the structural plates, a plurality of rolling balls are embedded in the upper end faces of the supporting plates along the tunneling direction, the upper end faces of the supporting plates slightly protrude out of the upper end faces of the supporting plates, the balls correspond to the square steel plates one by one, and the lower end faces of each square steel plate sink inwards to form hemispherical grooves for accommodating the corresponding balls;
the pair of rotating plates are vertically arranged on two sides of the soil retaining plate in the tunneling direction respectively, and the upper ends of the rotating plates are hinged with the lower ends of the sleeve plates on the sides, so that the rotating plates can swing around the hinge points in the direction perpendicular to the tunneling direction; the lower end of the rotating plate is detachably fixed at the upper end of the supporting plate on the same side so as to support the sleeve plate above the supporting plate;
the distance between the square steel plates is smaller than the diameter of the embedded pipeline.
Preferably, the lower end of the supporting plate extends into the supporting side plate, and the lower end surface of the supporting plate is lifted in the vertical direction through a pair of electric telescopic rods.
The invention at least comprises the following beneficial effects:
1. the main body of the equipment structure is of an I-shaped structure, and a telescopic oil cylinder is arranged in the middle structure and is used for pushing the single-ring pipe joint to be connected into sections;
2. each part of structure is connected into a whole by bolts, so that the assembly and the disassembly are convenient;
3. the front end of the equipment is provided with a chain transmission device for digging soil, and the chain transmission device can move up and down, so that undisturbed soil can be accurately overexcavated, and space is provided for the posture adjustment of the equipment.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic illustration of the present invention disposed in an originating pit;
FIG. 2 is a schematic diagram of the structure of the present invention;
FIG. 3 is a schematic view of a chain drive according to the present invention;
FIG. 4 is a schematic diagram of the positional relationship of the fixed pin and the positioning pin according to the present invention;
FIG. 5 is a schematic view of a mechanism of the retaining plate according to the present invention;
FIG. 6 is an enlarged view of the invention at A of FIG. 5;
FIG. 7 is an enlarged view of FIG. 5B in accordance with the present invention;
fig. 8 is an enlarged view of fig. 5 at C in accordance with the present invention.
Reference numerals illustrate: 1. the foundation pit comprises an originating foundation pit, 2, a supporting side plate, 3, a partition plate, 4, a chain transmission device, 5, a steel plate, 6, earth planing steel teeth, 7, a chain wheel, 8, a chain, 9, a fixed plate, 10, a positioning pin, 11, a retaining plate, 12, a first sub-guard plate, 13, a second sub-guard plate, 14, a sleeve plate, 15, a square rod, 16, a structural plate, 17, a square steel plate, 18, geotechnical cloth, 19, a supporting plate, 20, a rotating plate, 21, a first through hole, 22, a second through hole, 23, a telescopic mechanism, 24, a fixed pin, 25 and a ball.
Detailed Description
The present invention is described in further detail below with reference to the drawings to enable those skilled in the art to practice the invention by referring to the description.
In the description of the present invention, the terms "transverse", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus are not to be construed as limiting the present invention.
As shown in fig. 1 to 8, the present invention provides a full-face chain-type tunneling assembly tunneling machine which is provided in an originating foundation pit 1 and is movable forward in a tunneling direction, comprising:
a pair of support side plates 2 disposed relatively vertically;
a partition plate 3 disposed between the pair of supporting side plates 2 to partition a space between the pair of supporting side plates 2 into an excavating bin located at a front side and an assembling bin located at a rear side;
a plurality of chain drives 4 which are arranged on the partition plate 3 at intervals and are positioned in the excavation chamber; the chain 8 transmission surface of each chain transmission device 4 faces the support surface, and a plurality of steel plates 5 and a plurality of soil planing steel teeth 6 are arranged on the chain 8 transmission surface of each chain transmission device 4 along the transmission direction;
when the chain transmission device 4 transmits, the digging sub-surface is not broken by the plurality of digging steel teeth 6 arranged on the transmission surface of the chain 8 of the chain transmission device 4, and the steel plate 5 continuously transmits the soil layer dug by the digging steel teeth 6 to the position above the originating foundation pit 1.
In the technical scheme, an originating foundation pit 1 is formed by construction, and the device is installed in the originating foundation pit 1. Assembling a section of prefabricated pipeline in an assembling bin, fixing the assembled prefabricated pipeline at the assembling position through concrete pouring and soil backfilling, installing a telescopic oil cylinder at the position of a partition plate 3 opposite to the prefabricated pipeline, and pressing the opposite prefabricated pipeline through the telescopic oil cylinder, so that the whole device is pushed to move forwards towards the excavating direction, the prefabricated pipeline is assembled and moved out of a certain installation space, and the next section of prefabricated pipeline is installed at the position; in the whole forward moving process of the device, the plurality of chain transmission devices 4 are used for transmission, so that soil planing steel teeth 6 on the chain transmission devices continuously excavate the supporting surfaces forwards, and the soil is conveyed to the position above the originating foundation pit 1 through steel plates 5 on chains 8, and a plurality of excavators are matched for conveying away the accumulated soil; repeating the above process until the whole prefabricated pipeline is assembled. If the supporting side plate has a large thickness, an auxiliary chain transmission device parallel to the chain transmission device 4 can be hinged on the front side of the supporting side plate as shown in fig. 2.
The invention supports soil body through the main body structure, namely, the soil body is supported through the cooperation of the plurality of chain transmission devices 4 and the pair of support side plates 2, and the device is integrally moved through the oil cylinder, so that the construction process of the support structure is avoided, and the construction efficiency is improved.
The spreader surface is a working surface for continuously advancing when the tunnel is excavated. The steel plate may be arranged obliquely to the drive surface or perpendicularly to the drive surface, as shown in fig. 3.
In another embodiment, the chain transmission device 4 includes:
a pair of chain wheels 7 which are arranged at two ends of the pair of fixed plates 9 in a circumferential rotation way, wherein one chain wheel 7 is connected with the power mechanism and driven by the power mechanism to rotate;
a chain 8 which is tensioned between a pair of chain wheels 7, is meshed with the chain wheels 7, and is driven by a power mechanism to drive;
each chain transmission device 4 is arranged on the partition plate 3 through an adjusting mechanism, and the adjusting mechanism can adjust the included angle between the transmission surface of the chain transmission device 4 and the support surface.
In the technical scheme, according to construction requirements, the included angle between the transmission surface of the chain transmission device 4 and the support surface is required to be adjustable, as shown in fig. 1, at the moment, the support surface is attached to the transmission surface of the chain transmission device 4, and the included angle between the support surface and the transmission surface of the chain transmission device 4 is 0.
In another aspect, the adjusting mechanism includes:
a positioning pin 10 fixed to the front side above the partition plate 3 in a direction perpendicular to the pair of support side plates 2, one end of a pair of fixing plates 9 of the chain transmission device 4 being vertically penetrated through the positioning pin 10 so that the chain transmission device 4 can rotate around the positioning pin 10;
the fixed pin shaft 24, two ends of which vertically penetrate out of the other ends of the pair of fixed plates 9 and are fixed;
a telescopic mechanism 23, the non-telescopic end of which is built in the partition board 3, and the telescopic end of which extends out of the partition board 3 and is hinged with one end of a fixed pin 24;
when the telescopic end of the telescopic mechanism 23 stretches, the chain transmission device 4 can rotate around the positioning pin shaft 10, so that an included angle between a transmission surface of the chain transmission device 4 and a support surface is adjusted.
In this technical solution, the telescopic mechanism 23 may be an oil cylinder, an air cylinder or an electric telescopic rod, which is not limited herein. In the actual construction process, a hydraulic station is arranged in the assembly bin, so the telescopic mechanism 23 is preferably an oil cylinder, and the telescopic mechanism of the oil cylinder can drive the fixed pin shaft 24 hinged with the oil cylinder to be far away from or close to the partition plate 3, so that the lower end of the chain transmission device 4 is far away from or close to the partition plate 3, and the included angle between the transmission surface and the spreader surface of the chain transmission device 4 is adjusted. The fixing plate 9 is provided with a first through hole 21 through which the positioning pin 10 passes and a second through hole 22 through which the fixing pin 24 passes, as shown in fig. 3. In fig. 4, the positioning pin 10 is fixed to the ear plates at both ends thereof, the fixing pin 24 is not fixed to the ear plates at both ends thereof, the fixing pin 24 is fixed to a pair of fixing plates of the corresponding chain turning device 4, and one end of the fixing pin 24 is hinged with a telescopic mechanism 23 arranged along the tunneling direction.
In another technical scheme, the number of the chain transmission devices 4 is eight, the chain transmission devices 4 are arranged in pairs, the distance between the chain transmission devices 4 is 150mm-200mm, and each group of the chain transmission devices 4 share the same adjusting mechanism.
In this kind of technical scheme, in actual work progress, longer what used is, eight chain drive 4, satisfies the size of propping up the son face in it, and generally sets up chain drive 4 two by two into a set of in addition, when satisfying the atress demand, has reduced telescopic machanism 23's use quantity as far as possible, lightens the counter weight of whole device, lets the device light. The specific arrangement of each group of devices is that the same positioning pin shaft 10 passes through the upper ends of the two chain transmission devices 4, the same fixed pin shaft 24 passes through the lower ends of the two chain transmission devices 4, the lower ends of the two chain transmission devices 4 are wrapped by the U-shaped lug plates, the U-shaped lug plates are hinged with the middle parts of the inner sides of the U-shaped lug plates through the telescopic mechanisms 23, and one end of each fixed pin shaft can be directly hinged on the telescopic mechanisms without the U-shaped lug plates.
In another technical scheme, the upper end surfaces of the supporting side plates 2 are provided with vertical retaining plates 11 parallel to the vertical retaining plates.
In this technical scheme, the soil retaining plate 11 is used for preventing soil on the bottom surface from falling into the foundation pit, and influences the construction operation in the foundation pit.
In another technical scheme, the soil retaining plates 11 are divided into a plurality of blocks along the tunneling direction, and each soil retaining plate 11 is detachably fixed on the upper end face of the corresponding supporting side plate 2, so that the soil retaining plates can be conveniently removed when the soil retaining plates are required to be removed through the embedded pipeline.
In the technical scheme, if the embedded pipeline transversely blocked in the tunneling direction is encountered in the tunneling process, the soil retaining plate 11 can be removed, so that the tunneling is facilitated and the embedded pipeline can be passed through.
In another technical scheme, the supporting side plate 2 is divided into a first sub-guard plate 12 and a second sub-guard plate 13 along the tunneling direction, and the first sub-guard plate and the second sub-guard plate are hinged, so that the second sub-guard plate 13 can swing in the direction perpendicular to the tunneling direction.
In this kind of technical scheme, when whole device need turn to, whole device is cut apart into articulated two parts, can adapt to the curve excavation of foundation ditch, and the swing space that needs is less.
In another aspect, the soil guard plate 11 sequentially includes, from top to bottom:
the sleeve plate 14 is in a plate type shell shape with an open lower end, and a plurality of square rods 15 which are uniformly spaced along the tunneling direction and vertically arranged are arranged on the inner wall of one vertical side surface of the sleeve plate 14;
a structural plate 16, the upper end of which can just extend into the inner cavity of the sleeve plate 14 in a vertically sliding manner; the structural plate 16 comprises a plurality of square steel plates 17 which are vertically arranged on the upper end face of the supporting plate 19 and are uniformly arranged at intervals along the tunneling direction of the supporting plate, and adjacent square steel plates 17 are connected through geotextile 18 to form a square seamless retaining surface; the square steel plates 17 are in one-to-one correspondence with the square rods 15, the side surfaces of the square steel plates 17 opposite to the corresponding square rods 15 are inwards sunken to form a vertical through guide groove matched with the square rods 15, and the guide groove accommodates the corresponding square rods 15 to form a guide for the up-and-down sliding of the structural plates 16;
the supporting plates 19 are vertically arranged on the upper end surfaces of the corresponding supporting side plates 2, the upper end surfaces of the supporting plates 19 are used for supporting the structural plates 16, a plurality of rollable balls 25 are embedded in the upper end surfaces of the supporting plates 19 along the tunneling direction, the upper end surfaces of the supporting plates slightly protrude out of the upper end surfaces of the supporting plates 19, the balls 25 are in one-to-one correspondence with the square steel plates 17, and the lower end surfaces of each square steel plate 17 are sunken to form hemispherical grooves for accommodating the corresponding balls 25;
a pair of rotating plates 20 vertically provided at both sides of the earth-retaining plate 11 in a tunneling direction, respectively, the upper ends of the rotating plates 20 being hinged to the lower ends of the jacket plates 14 at the sides so that the rotating plates 20 can swing around the hinge points in a direction perpendicular to the tunneling direction; the lower end of the rotating plate 20 is detachably fixed at the upper end of the supporting plate 19 on the same side so as to support the sleeve plate 14 above the supporting plate 19;
the distance between the square steel plates 17 is smaller than the diameter of the embedded pipeline.
In this kind of technical scheme, when the pre-buried pipeline appears in the place ahead of tunneling direction, can be with the detachable fixed connection of front side's rotating plate 20 and backup pad 19 release, then rotate rotating plate 20 for pre-buried pipeline gets into between the up end of backup pad 19 and the lower terminal surface of structural slab 16, then with the rotating plate 20 of front side and backup pad 19 fixed connection again, in the process of entry driving machine forward, make the pipeline remove to the rear side from the front side, then release the detachable fixed connection between rotating plate 20 of rear side and backup pad 19, make pre-buried pipeline remove to the retaining plate 11 rear side completely, again with the rotating plate 20 of rear side and the fixed connection again between the backup pad 19, accomplish the whole device and pass through pre-buried pipeline. The square steel plate and the geotechnical cloth can be adhered, or a clamp is arranged on the square steel plate to clamp the geotechnical cloth.
Because the interval between the square steel plates 17 is smaller than the diameter of the embedded pipeline, the embedded pipeline is not clamped between the square steel plates 17 and can be sleeved with a hard protective sleeve with the diameter larger than the interval between the square steel plates 17 if the embedded pipeline is softer or the diameter is smaller than the interval between the square steel plates 17, so that the embedded pipeline can be conveniently constructed and protected, and the protective sleeve can be specifically divided into two identical semi-cylindrical pair of sub-sleeves which can be clamped or detachably connected.
The balls 25 can have less friction when the embedded pipeline moves on the upper end surface of the supporting plate 19. When not through pre-buried pipeline, can block the lower extreme of square steel plate 17 at backup pad 19 up end to prevent the extrusion of soil, make square steel plate 17 and backup pad 19 stagger, make the soil retaining function inefficacy.
In another technical solution, the lower end of the supporting plate 19 extends into the supporting side plate 2, and the lower end surface of the supporting plate 19 is lifted in the vertical direction by a pair of electric telescopic rods.
In this kind of technical scheme, because the degree of depth of pre-buried pipeline is different, can adjust the high position of backup pad 19's upper surface to make the pre-buried pipeline of every degree of depth all roll on ball 25, with the resistance that reduces pre-buried pipeline, the convenience is under construction.
Although embodiments of the present invention have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the invention would be readily apparent to those skilled in the art, and accordingly, the invention is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (7)
1. The utility model provides a full face chain drivage assembly entry driving machine, its setting is in originating foundation ditch and can follow the tunnelling direction forward, its characterized in that includes:
a pair of support side plates disposed relatively vertically;
a partition plate arranged between the pair of support side plates for separating the space between the pair of support side plates into an excavating bin positioned at the front side and an assembling bin positioned at the rear side;
a plurality of chain drives spaced apart on the partition and positioned in the dredging bin; the chain transmission surface of each chain transmission device faces the support surface, and a plurality of steel plates and a plurality of soil planing steel teeth are arranged on the chain transmission surface of the chain transmission device along the transmission direction;
when the chain transmission device is used for transmission, the digging sub-surface is not broken by the plurality of digging steel teeth arranged on the chain transmission surface of the chain transmission device, and the steel plate continuously transmits the soil layer dug by the digging steel teeth to the position above the originating foundation pit;
the upper end surfaces of the support side plates are respectively provided with a vertical soil retaining plate which is parallel to the support side plates;
the soil retaining plate comprises the following components in sequence from top to bottom:
the sleeve plate is in a plate type shell shape with an open lower end, and a plurality of square rods which are uniformly spaced along the tunneling direction and vertically arranged are arranged on the inner wall of one vertical side surface of the sleeve plate;
the upper end of the structural plate can just extend into the inner cavity of the sleeve plate in a vertically sliding way; the structure plate comprises a plurality of square steel plates which are vertically arranged on the upper end face of the supporting plate and are uniformly arranged at intervals along the tunneling direction of the supporting plate, and adjacent square steel plates are connected through geotextile to form a square seamless retaining surface; the square steel plates are in one-to-one correspondence with the square rods, the side surfaces of the square steel plates opposite to the corresponding square rods are inwards sunken to form a guide groove which is vertically penetrated and matched with the square rods, and the guide groove accommodates the corresponding square rods to form a guide for the up-and-down sliding of the structural plates;
the supporting plates are vertically arranged on the upper end faces of the corresponding supporting side plates, the upper end faces of the supporting plates are used for supporting the structural plates, a plurality of rolling balls are embedded in the upper end faces of the supporting plates along the tunneling direction, the upper end faces of the supporting plates slightly protrude out of the upper end faces of the supporting plates, the balls correspond to the square steel plates one by one, and the lower end faces of each square steel plate sink inwards to form hemispherical grooves for accommodating the corresponding balls;
the pair of rotating plates are vertically arranged on two sides of the soil retaining plate in the tunneling direction respectively, and the upper ends of the rotating plates are hinged with the lower ends of the sleeve plates on the sides, so that the rotating plates can swing around the hinge points in the direction perpendicular to the tunneling direction; the lower end of the rotating plate is detachably fixed at the upper end of the supporting plate on the same side so as to support the sleeve plate above the supporting plate;
the distance between the square steel plates is smaller than the diameter of the embedded pipeline.
2. A full face chain entry face construction heading machine as claimed in claim 1 wherein the chain drive comprises:
the chain wheels are arranged at two ends of the pair of fixed plates in a circumferential rotating way, and one chain wheel is connected with the power mechanism and driven to rotate by the power mechanism;
the chain is tensioned between the pair of chain wheels, meshed with the chain wheels and driven by the power mechanism to drive;
each chain transmission device is arranged on the partition plate through an adjusting mechanism, and the adjusting mechanism can adjust the included angle between the transmission surface of the chain transmission device and the support surface.
3. A full face chain entry face construction heading machine as claimed in claim 2 wherein the adjustment mechanism comprises:
the positioning pin shafts are fixed on the front side above the partition plate along the direction perpendicular to the pair of support side plates, and one ends of a pair of fixing plates of the chain transmission device vertically penetrate through the positioning pin shafts so that the chain transmission device can rotate around the positioning pin shafts;
the two ends of the fixed pin shaft vertically penetrate out of the other ends of the pair of fixed plates and are fixed;
the non-telescopic end of the telescopic mechanism is arranged in the partition board, and the telescopic end of the telescopic mechanism extends out of the partition board and is hinged with one end of the fixed pin shaft;
when the telescopic end of the telescopic mechanism stretches, the chain transmission device can rotate around the positioning pin shaft, so that an included angle between a transmission surface of the chain transmission device and a support surface is adjusted.
4. A full face chain tunneling assembly tunneling machine according to claim 3 wherein there are eight chain drives, one set each, with a spacing of 150mm-200mm between the chain drives, each set of chain drives sharing one of said adjustment mechanisms.
5. A full face chain type tunneling assembly tunneling machine according to claim 1 wherein the retaining plates are divided into a plurality of blocks along the tunneling direction, each retaining plate being detachably fixed to the upper end face of the corresponding supporting side plate so as to facilitate dismantling when dismantling is required through the pre-buried pipeline.
6. A full face chain type tunneling assembly tunneling machine according to claim 1 wherein said supporting side plate is divided into a first sub-guard plate and a second sub-guard plate along the tunneling direction, hinged therebetween such that said second sub-guard plate can swing in a direction perpendicular to the tunneling direction.
7. A full face chain tunneling assembly tunneling machine according to claim 1 wherein the lower end of said support plate extends into the interior of said support side plate and the lower end face of said support plate is vertically raised and lowered by a pair of electric telescopic rods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811186155.3A CN109339814B (en) | 2018-10-11 | 2018-10-11 | Full-face chain type tunneling assembly tunneling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811186155.3A CN109339814B (en) | 2018-10-11 | 2018-10-11 | Full-face chain type tunneling assembly tunneling machine |
Publications (2)
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