CN114961758B - Modularized double-shell rectangular pipe jacking host machine and shelling, disassembling and remanufacturing method - Google Patents
Modularized double-shell rectangular pipe jacking host machine and shelling, disassembling and remanufacturing method Download PDFInfo
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- CN114961758B CN114961758B CN202210902338.0A CN202210902338A CN114961758B CN 114961758 B CN114961758 B CN 114961758B CN 202210902338 A CN202210902338 A CN 202210902338A CN 114961758 B CN114961758 B CN 114961758B
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21D9/03—Driving non-circular tunnels
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
Abstract
The invention discloses a modularized double-shell rectangular pipe jacking host machine and a shelling, disassembling and remanufacturing method. The front body, the middle body and the shield tail are arranged into the inner-outer double-layer shell, when the push bench is disassembled, the inner components of the push bench are disassembled from the shell and transferred for reuse, the shell is only left in the tunnel, the damage and abandonment of the inner components are avoided, and the construction cost is reduced.
Description
Technical Field
The invention relates to the technical field of pipe jacking construction, in particular to a modularized double-shell rectangular pipe jacking host machine and a shelling, disassembling and remanufacturing method.
Background
With the acceleration of the urbanization process, rail transit becomes one of important means for solving urban traffic congestion, subway construction is continuously promoted in each big city, mechanized construction gradually becomes the mainstream of subway construction methods, and especially in recent years, rectangular pipe jacking construction at subway entrances and exits becomes a novel construction method.
The subway is generally built in a busy city area, particularly, station stations are mostly located at intersections of roads, construction of subway station entrances and exits is often delayed from construction of a station main body due to restriction of external factors such as land acquisition and removal, and the condition that the subway is operated but part of the entrances and exits are slow to build exists. When a post-built subway entrance and exit is constructed by adopting a pipe jacking method, the pipe jacking machine cannot adopt a normal shaft receiving method due to terrain limitation, and can only be unshelled and disassembled in a tunnel or a station, and components such as a shell, a cutter head, a supporting column, a man gate, a front body breast board, an oil cylinder support and the like of a rectangular pipe jacking host machine are destructively disassembled, so that the manufacturing cost of the components reaches millions, and the subsequent dismantling operation is required, so that the cost is further increased, the labor intensity is increased, and the subsequent construction progress is not facilitated. The invention provides a modularized double-shell rectangular pipe jacking host machine and a shelling, disassembling and remanufacturing method, which are used for solving the problems.
Disclosure of Invention
The invention provides a modularized double-shell rectangular pipe jacking host machine and a shelling, disassembling and remanufacturing method.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the utility model provides a modularization double-shelled rectangle push pipe host computer, includes blade disc, the preceding body, well body and shield tail, the blade disc is established on the preceding body, well body and shield tail are connected one by one after to preceding, can dismantle between the preceding body and the well body and be connected, can dismantle between the well body and the shield tail and be connected, the preceding body, well body and shield tail all adopt modular structure to all be equipped with inside and outside double-deck casing.
Further, the precursor comprises a precursor outer shell, a precursor inner shell and a precursor chest plate, wherein the precursor inner shell is arranged outside the precursor chest plate, and the precursor outer shell is detachably connected outside the precursor inner shell;
the front body shell comprises a unit shell, the unit shell comprises an upper shell and a lower shell, shell connecting plates are arranged on the inner sides of the unit shell, and the unit shell is connected with each other through the shell connecting plates;
the precursor chest plate comprises a chest plate unit, the precursor inner shell comprises a precursor inner shell unit, and the precursor inner shell unit is arranged on the periphery of the chest plate unit;
the inner sides of the breast plate units are provided with breast plate connecting plates, and adjacent breast plate units are mutually connected through the breast plate connecting plates; the inner sides of the front body inner shell units are provided with front body inner shell connecting plates, and adjacent front body inner shell units are connected with each other through the front body inner shell connecting plates.
Furthermore, the middle body comprises a middle body outer shell, a middle body inner shell and a middle body annular plate, the middle body inner shell is arranged on the periphery of the middle body annular plate, and the middle body outer shell is detachably connected outside the middle body inner shell;
the middle body ring plate comprises a ring plate unit, the middle body inner shell comprises a middle body inner shell unit, and the middle body inner shell unit is arranged on the periphery of the ring plate unit;
the inner side of the middle inner shell unit is provided with a middle inner shell connecting plate, and the adjacent middle inner shell units are connected with each other through the middle inner shell connecting plates.
Furthermore, a front body connecting plate is arranged on the rear side of the front body inner shell unit, and the front body connecting plate is detachably connected with the ring plate unit;
the chest plate connecting plate is arranged along the radial direction of the pipe jacking host machine, the front body inner shell connecting plate and the middle body inner shell connecting plate are arranged along the axial direction of the pipe jacking host machine, and the front body connecting plate is arranged along the circumferential direction of the pipe jacking host machine.
Further, the shield tail comprises a shield tail outer shell and a shield tail inner shell, and the shield tail outer shell is detachably connected outside the shield tail inner shell;
the shield tail inner shell includes shield tail inner shell unit, the inboard of shield tail inner shell unit is equipped with shield tail inner shell connecting plate, and adjacent shield tail inner shell unit passes through shield tail inner shell connecting plate interconnect, the front side of shield tail inner shell unit is equipped with shield tail connecting plate, the connection can be dismantled on well inner shell unit to the shield tail connecting plate.
Furthermore, connecting holes are formed in the inner walls of the front body outer shell, the middle body outer shell and the shield tail outer shell at intervals, through holes are formed in the peripheries of the front body inner shell, the middle body inner shell and the shield tail inner shell at intervals, the through holes are arranged corresponding to the connecting holes, connecting pieces are arranged in the through holes, oil filling holes are formed in the front body inner shell, the middle body inner shell and the shield tail inner shell, and oil filling devices are connected to the oil filling holes;
the middle body shell and the shield tail shell are both rectangular tubular structures.
Furthermore, the cutter comprises a large cutter structure and a small cutter structure, the large cutter structure and the small cutter structure are arranged on the front body at intervals, the large cutter structure comprises a large cutter and a cutter drive, the small cutter structure comprises a small cutter and a cutter drive, and the cutter drive is arranged on the front body; the front body is provided with a screw conveyor, the middle body is provided with a hinged oil cylinder, and the shield tail is provided with a pipe-removing oil cylinder.
Furthermore, a cutter head connecting plate is arranged on the breast board unit, and the cutter head is detachably connected to the cutter head connecting plate; the middle body is internally provided with a support column, the support column comprises a column body and a connecting seat, the connecting seat is arranged on the inner shell unit of the middle body, and the column body is detachably connected on the connecting seat.
A shelling and disassembling method of a modularized double-shell rectangular pipe jacking host machine comprises the following steps:
s01, disassembling accessory components of the shield tail: the pipe jacking machine tunnels to a designated position, and an auxiliary component of the pipe jacking machine is removed;
s02, disassembling a shield tail: firstly, injecting oil and pressurizing between a shield tail outer shell and a shield tail inner shell through an oil injection device to separate the shield tail outer shell from the shield tail inner shell, then erecting a frame body in the shield tail inner shell, and performing tie fixing on the shield tail inner shell, firstly disassembling a shield tail inner shell unit positioned on the left upper part, sequentially disassembling the connection between the shield tail inner shell unit and an adjacent shield tail inner shell unit, the connection between the shield tail inner shell unit and a middle body, and the connection between the shield tail inner shell unit and the shield tail outer shell, then integrally horizontally moving the shield tail inner shell unit backwards, drawing out and transporting away, and disassembling and transporting away the shield tail inner shell unit one by one according to the operation;
s03, disassembling the midbody: firstly, removing the accessory components in the middle body, then disassembling the middle body according to the operation mode of disassembling the shield tail in the step S02, and transporting the disassembled components away;
s04, disassembling the precursor: reinforcing the cutter head and soil around the front body, temporarily fixing the cutter head on a shell of the front body after the soil is reinforced stably, disassembling the front body according to the operation mode of disassembling the shield tail in the step S02, and transporting the disassembled components away;
s05, disassembling the cutter head: the large cutter disc and the small cutter disc are detached and carried away in sequence;
s06, leaving the housing: after the internal components of the shield main machine are transported away, the front body shell, the middle body shell and the shield tail shell are left in the tunnel as primary support structures.
A remanufacturing method of a modular double-shell rectangular pipe jacking host machine comprises the following steps:
s11, assembly precursor: manufacturing a new precursor outer shell, firstly installing a precursor inner shell unit positioned at the left lower part, connecting and pre-tightening the precursor inner shell unit and the precursor outer shell, then installing the precursor inner shell units one by one, and fastening after all the precursor inner shell units are installed;
s12, assembling a cutter head: firstly, a cutter head positioned in the middle is installed in a front body chest plate in a driving way, and then cutter head drives positioned on two sides are installed;
s13, assembling an intermediate body: manufacturing a new middle body outer shell, and assembling the middle body inner shell according to the operation mode of installing the precursor in the step S11;
s14, assembling a shield tail: mounting the middle body accessory component, manufacturing a new shield tail outer shell, and assembling the shield tail inner shell according to the operation mode of mounting the precursor in the step S11;
s15, assembling a middle shield tail: inserting the assembled shield tail into the middle body, and fastening;
s15, assembling a precursor midbody: and (4) mounting auxiliary components, assembling the front body and the middle body, and debugging the whole machine after the assembly is finished.
The invention has the following beneficial effects:
the front body, the middle body and the shield tail are arranged into an inner-outer double-layer shell, when the push bench is disassembled, the inner components of the push bench are disassembled from the shell and are transported for reuse, the shell is only left in the tunnel, the damage and abandonment of the inner components are avoided, and the construction cost is reduced;
adopt modular structure to realize the structural style of inside and outside double-deck casing, guaranteed that the internals can be convenient disassemble from the shell, modular structure cooperation can be dismantled the connected mode simultaneously and realized the convenient disassembly and the installation of pipe pushing jack, effectively promote the efficiency of construction, reduce the problem of the time limit of a project that leads to because of the dismouting cycle overlength of a project.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the overall structure of the present invention in an exploded state;
FIG. 3 is a schematic front view of a precursor of the present invention;
FIG. 4 is a schematic rear view of a precursor of the present invention;
FIG. 5 is a schematic side view of the connection of the outer precursor shell to the inner precursor shell of the present invention;
FIG. 6 is a schematic view of a precursor housing of the present invention in an exploded state;
FIG. 7 is a schematic side view of a precursor housing of the present invention;
FIG. 8 is a front view of the inner precursor shell of the present invention in connection with a precursor chest plate;
FIG. 9 is a schematic side view of the connection of the inner precursor shell to the front breast plate of the present invention;
FIG. 10 is a schematic view of a precursor chest plate of the present invention in an exploded condition;
FIG. 11 is a front view of the midbody of the present invention;
FIG. 12 is a rear elevational view of the mid-body of the present invention;
FIG. 13 is a schematic view of a mid-body enclosure of the present invention;
FIG. 14 is a front view of the inner shell of the middle body of the present invention in an exploded state;
FIG. 15 is a rear view of the inner housing of the middle body of the present invention in an exploded state;
FIG. 16 is a side view of the inner shell of the middle body of the present invention in an exploded state;
FIG. 17 is a front view of the shield tail of the present invention
FIG. 18 is a side view of the shield tail of the present invention
FIG. 19 is a schematic view of the shield tail housing of the present invention;
FIG. 20 is a front view of the shield tail inner shell of the present invention;
FIG. 21 is a schematic exploded view of the shield tail inner shell of the present invention;
FIG. 22 is a side view of the shield tail inner shell of the present invention.
Reference numerals are as follows: 1-cutterhead, 11-large cutterhead structure, 12-small cutterhead structure, 2-front body, 21-front body outer shell, 211-outer shell connecting plate, 22-front body inner shell, 221-front body inner shell connecting plate, 222-front body connecting plate, 23-front body chest plate, 231-chest plate connecting plate, 232-cutterhead connecting plate, 3-middle body, 31-middle body outer shell, 32-middle body inner shell, 321-middle body inner shell connecting plate, 33-middle body ring plate, 34-supporting column, 4-shield tail, 41-shield tail outer shell, 42-shield tail inner shell, 421-shield tail inner shell connecting plate and 422-shield tail connecting plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the specification, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
As shown in figure 1 and 2, a modularization double-shell rectangle push pipe host computer, including blade disc 1, forebody 2, midbody 3 and shield tail 4, blade disc 1 is established on forebody 2, midbody 3 and shield tail 4 are by preceding to back connection in succession, can dismantle between forebody 2 and the midbody 3 and be connected, can dismantle between midbody 3 and the shield tail 4 and be connected, forebody 2, midbody 3 and shield tail 4 all adopt modular structure to all be equipped with inside and outside double-deck casing.
The pipe jacking machine is of a modular structure with the cutter head 1, the front body 2, the middle body 3 and the shield tail 4 are of an inner-outer double-layer shell structure, the modular structure is matched with the double-layer shell to realize convenient disassembly and installation operation of internal components of the pipe jacking machine from the shell, damage and abandonment of the internal components of the pipe jacking machine are avoided, the construction cost is reduced, the technical difficulty of disassembly and the operation period are effectively reduced by the modular structure, and further the construction efficiency is improved and the cost is reduced.
As shown in fig. 3, 4 and 5, the precursor 2 further includes a precursor outer shell 21, a precursor inner shell 22 and a precursor breast plate 23, the precursor inner shell 22 is fixedly connected to the outer side of the precursor breast plate 23, the precursor inner shell 22 and the precursor breast plate 23 are both composed of unit blocks, the unit blocks of the precursor inner shell 22 and the precursor breast plate 23 are in one-to-one correspondence, and the precursor outer shell 21 is detachably connected to the outside of the precursor inner shell 22.
As shown in fig. 6 and 7, the front body casing 21 includes a unit casing including an upper casing and a lower casing, and the inside of the unit casing is provided with a casing connection plate 211, and the unit casings are connected to each other by the casing connection plate 211.
As shown in fig. 8, 9 and 10, the front body chest plate 23 includes a chest plate unit including a left upper chest plate unit, a right upper chest plate unit, a left lower chest plate unit and a right lower chest plate unit, the front body inner shell 22 includes a front body inner shell unit including a left upper front body inner shell unit, a right upper front body inner shell unit, a left lower front body inner shell unit and a right lower front body inner shell unit, the front body inner shell unit is fixedly connected to the periphery of the corresponding chest plate unit, the left upper front body inner shell unit and the right upper front body inner shell unit are detachably connected in the upper outer shell, and the left lower front body inner shell unit and the right lower front body inner shell unit are detachably connected in the lower outer shell.
As shown in fig. 8, 9 and 10, the inner sides of the breast plate units are provided with breast plate connecting plates 231, the adjacent breast plate units are connected with each other through the breast plate connecting plates 231, and the breast plate connecting plates 231 are detachably connected through bolts; the inner sides of the front body inner shell units are provided with front body inner shell connecting plates 221, the adjacent front body inner shell units are connected with each other through the front body inner shell connecting plates 221, and the front body inner shell connecting plates 221 are detachably connected through bolts.
As shown in fig. 11 and 12, further, the middle body 3 includes a middle body outer shell 31, a middle body inner shell 32 and a middle body ring plate 33, the middle body inner shell 32 is fixedly connected to the periphery of the middle body ring plate 33, and the middle body outer shell 31 is detachably connected to the outside of the middle body inner shell 32.
As shown in fig. 14, 15 and 16, the middle body ring plate 33 includes ring plate units, including a left upper ring plate unit, a right upper ring plate unit, a left lower ring plate unit and a right lower ring plate unit, the middle body inner shell 32 includes a middle body inner shell unit, including a left upper middle body inner shell unit, a right upper middle body inner shell unit, a left lower middle body inner shell unit and a right lower middle body inner shell unit, and the middle body inner shell unit is fixedly connected to the outer periphery of the corresponding ring plate unit.
As shown in fig. 14, 15 and 16, the inner side of the middle inner shell unit is provided with middle inner shell connecting plates 321, adjacent middle inner shell units are connected with each other through the middle inner shell connecting plates 321, and the middle inner shell connecting plates 321 are detachably connected through bolts.
As shown in fig. 9 and 16, further, a front body connecting plate 222 is arranged on the rear side of the front body inner shell unit, the corresponding front body inner shell unit and the corresponding ring plate unit are connected through the front body connecting plate 222 and the ring plate unit, and the front body connecting plate 222 and the ring plate unit are detachably connected through bolts, so that the detachable connection between the two modules of the front body 2 and the middle body 3 is realized.
The chest plate connecting plate 231 is arranged along the radial direction of the pipe jacking main machine, the front inner shell connecting plate 221 and the middle inner shell connecting plate 321 are arranged along the axial direction of the pipe jacking main machine, and the front connecting plate 222 is arranged along the circumferential direction of the pipe jacking main machine.
As shown in fig. 17 and 18, further, the shield tail 4 includes a shield tail outer shell 41 and a shield tail inner shell 42, and the shield tail outer shell 41 is detachably connected outside the shield tail inner shell 42.
As shown in fig. 20, 21, 22, shield tail inner shell 42 includes shield tail inner shell unit, including upper left shield tail inner shell unit, upper right shield tail inner shell unit, lower left shield tail inner shell unit and lower right shield tail inner shell unit, the inboard of shield tail inner shell unit is equipped with shield tail inner shell connecting plate 421, and adjacent shield tail inner shell unit passes through shield tail inner shell connecting plate 421 interconnect, can dismantle the connection through the bolt between shield tail inner shell connecting plate 421, the front side of shield tail inner shell unit is equipped with shield tail connecting plate 422, shield tail connecting plate 422 can dismantle the connection on corresponding midbody inner shell unit through articulated hydro-cylinder.
As shown in fig. 6, 13 and 19, further, connection holes are provided at intervals on the inner walls of the front body outer shell 21, the middle body outer shell 31 and the shield tail outer shell 41, through holes are provided at intervals on the peripheries of the front body inner shell 22, the middle body inner shell 32 and the shield tail inner shell 42, the through holes are arranged corresponding to the connection holes, and connectors are provided therein, oil injection holes are provided on the front body inner shell 22, the middle body inner shell 32 and the shield tail inner shell 42, and oil injection devices are connected to the oil injection holes.
Furthermore, grooves are formed in the outer ends of the through holes and the outer ends of the connecting holes, and sealing sleeves are arranged in the grooves. When adopting the connecting piece to connect inner shell and shell, the seal cover plays sealed effect to through-hole and connecting hole, and when follow-up oiling separates inner shell and shell, the seal cover plays sealed effect, avoids during fluid gets into through-hole and connecting hole, and then appears the unable problem that realizes that the inner and outer shell is thrown off of insufficient pressure, guarantees the smooth separation of inner shell and shell.
Preferably, the thickness of the front body shell 21, the middle body shell 31 and the shield tail shell 41 is 20-30mm. The thickness of the outer shell of the shield machine adopting the single-layer shell is about 40-60mm, the manufacturing cost of the outer shell of the single-layer shell is millions of yuan, the outer shell is generally abandoned in a tunnel to serve as a primary support structure or to be broken and dismantled when the shield machine is disassembled, and cost waste is extremely large.
As shown in fig. 13 and 19, the middle body housing 31 and the shield tail housing 41 are both rectangular tubular structures, and each include a unit housing, which includes an upper housing and a lower housing.
As shown in fig. 1 and 4, further, the cutter head 1 includes a large cutter head structure 11 and a small cutter head structure 12, the large cutter head structure 11 and the small cutter head structure 12 are arranged on the front body 2 at intervals, the large cutter head structure 11 includes a large cutter head and a cutter head drive, the small cutter head structure 12 includes a small cutter head and a cutter head drive, and the cutter head drive is arranged on the front body 2; the front body 2 is provided with a screw conveyor, the middle body 3 is provided with a hinged oil cylinder, and the shield tail 4 is provided with a pipe-removing oil cylinder.
Preferably, two circumferential ring plates are arranged in the shield tail inner shell unit, one ring plate serves as an end plate of the pipe-removing oil cylinder, the other ring plate is hollow at a cylinder rod of the pipe-removing oil cylinder, and the cylinder rod of the pipe-removing oil cylinder pushes the rear pipe joint through the hollow part of the ring plates.
As shown in fig. 8, further, a cutter connecting plate 232 is arranged on the breast board unit, the cutter connecting plate 232 is arranged at the position of the splicing seam of the breast board unit, so that the stability of the cutter driving connection is ensured, and the cutter driving of the cutter 1 is detachably connected to the cutter connecting plate 232.
Be equipped with support column 34 in the well body 3, support column 34 includes cylinder and connecting seat, and the connecting seat sets up two from top to bottom, and the connecting seat includes the connecting seat unit, and the connecting seat unit is established at well internal shell unit inboardly, when carrying out the concatenation of well internal shell unit, splices the connecting seat unit simultaneously, forms two upper and lower connecting seats, the connection can be dismantled between two connecting seats to the cylinder.
A shelling and disassembling method of a modular double-shell rectangular pipe jacking host machine comprises the following steps:
s01, disassembling accessory components of the shield tail: tunneling the push bench to a specified position, and dismantling an auxiliary component of the push bench;
s02, disassembling a shield tail: firstly, injecting oil and pressurizing between a shield tail outer shell 41 and a shield tail inner shell 42 through an oil injection device to separate the shield tail outer shell 41 from the shield tail inner shell 42, then erecting a frame body in the shield tail inner shell 42, and performing tie fixing on the shield tail inner shell 42, firstly disassembling a shield tail inner shell unit positioned on the upper left, sequentially disassembling the connection between the shield tail inner shell unit and the adjacent shield tail inner shell unit, the connection between the shield tail inner shell unit and a middle body 3, and the connection between the shield tail inner shell unit and the shield tail outer shell 41, then integrally translating and extracting the shield tail inner shell unit backwards and transporting away, and disassembling and transporting away the shield tail inner shell unit one by one according to the operation;
s03, disassembling the midbody: dismantling the auxiliary components in the middle body 3, dismantling the middle body 3 according to the operation mode of dismantling the shield tail in the step S02, and transporting away the dismantled components;
s04, disassembling the precursor: firstly, reinforcing soil bodies around the cutter head 1 and the front body 2, temporarily fixing the cutter head 1 on a front body shell 21 after the soil bodies are reinforced and stabilized, then disassembling the front body 2 according to the operation mode of disassembling the shield tail in the step S02, and transporting the disassembled components away;
s05, disassembling the cutter head: the large cutter disc and the small cutter disc are detached and carried away in sequence;
s06, leaving the housing: after the internal components of the shield main machine are transported away, the front body shell 21, the middle body shell 31 and the shield tail shell 41 are left in the tunnel as primary support structures.
Further, the steps S04 to S05 are applicable to construction in a tunnel without a receiving space, the push bench is located in a tunnel soil body, soil body reinforcement is required to be performed first, then the precursor inner shell 22 is disassembled, and then the cutter head is disassembled after the precursor inner shell 22 is disassembled.
When the push bench is in the underground excavation space for construction, the cutterhead is disassembled firstly, and then the frame body is erected for disassembling the front body inner shell 22, so that soil body reinforcement is not needed.
A remanufacturing method of a modular double-shell rectangular pipe jacking host machine comprises the following steps:
s11, assembly precursor: manufacturing a new precursor outer shell 21, firstly installing the precursor inner shell units positioned at the left lower part, connecting and pre-tightening the precursor inner shell units and the precursor outer shell 21, then installing the precursor inner shell units one by one, and fastening after all the precursor inner shell units are installed;
s12, assembling a cutter head: firstly, the cutter head drive positioned in the middle is installed in the front body chest plate 23, and then the cutter head drives positioned on two sides are installed;
s13, assembling a midbody: making a new middle body outer shell 31, and assembling the middle body inner shell 32 according to the operation mode of installing the precursor in the step S11;
s14, assembling a shield tail: mounting the middle body accessory component, manufacturing a new shield tail outer shell 41, and assembling the shield tail inner shell 42 according to the operation mode of mounting the precursor in the step S11;
s15, assembling a middle shield tail: inserting the assembled shield tail 4 into the middle body 3 and fastening;
s15, assembling a precursor midbody: and (3) mounting auxiliary components, assembling the front body 2 and the middle body 3, and debugging the whole machine after assembling is finished.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
Claims (9)
1. A modularized double-shell rectangular pipe jacking host machine is characterized by comprising a cutter head (1), a front body (2), a middle body (3) and a shield tail (4), wherein the cutter head (1) is arranged on the front body (2), the middle body (3) and the shield tail (4) are sequentially connected from front to back, the front body (2) and the middle body (3) are detachably connected, the middle body (3) and the shield tail (4) are detachably connected, the front body (2), the middle body (3) and the shield tail (4) are all of a modularized structure and are provided with an inner shell and an outer shell;
the front body (2) comprises a front body outer shell (21), a front body inner shell (22) and a front body chest plate (23), the front body inner shell (22) is arranged outside the front body chest plate (23), and the front body outer shell (21) is detachably connected outside the front body inner shell (22);
the front body shell (21) comprises a unit shell, the unit shell comprises an upper shell and a lower shell, the inner side of the unit shell is provided with a shell connecting plate (211), and the unit shells are connected with each other through the shell connecting plate (211);
the precursor chest plate (23) comprises a chest plate unit, the precursor inner shell (22) comprises a precursor inner shell unit, and the precursor inner shell unit is arranged on the periphery of the chest plate unit;
the inner sides of the breast plate units are provided with breast plate connecting plates (231), and the adjacent breast plate units are connected with each other through the breast plate connecting plates (231); the inner sides of the precursor inner shell units are provided with precursor inner shell connecting plates (221), and the adjacent precursor inner shell units are connected with each other through the precursor inner shell connecting plates (221);
the middle body (3) comprises a middle body outer shell (31), a middle body inner shell (32) and a middle body annular plate (33), the middle body inner shell (32) is arranged on the periphery of the middle body annular plate (33), and the middle body outer shell (31) is detachably connected outside the middle body inner shell (32);
the shield tail (4) comprises a shield tail outer shell (41) and a shield tail inner shell (42), wherein the shield tail outer shell (41) is detachably connected to the outside of the shield tail inner shell (42);
the interval is equipped with the connecting hole on the inner wall of preceding body shell (21), well body shell (31) and shield tail shell (41), the interval is equipped with the through-hole on the periphery of preceding body inner shell (22), well body inner shell (32) and shield tail inner shell (42), the through-hole sets up with the connecting hole is corresponding, and is equipped with the connecting piece wherein, be equipped with the oil filler point on preceding body inner shell (22), well body inner shell (32) and shield tail inner shell (42), be connected with oiling device on the oil filler point.
2. The modular double-shell rectangular pipe jacking host machine as claimed in claim 1, wherein: the middle body ring plate (33) comprises a ring plate unit, the middle body inner shell (32) comprises a middle body inner shell unit, and the middle body inner shell unit is arranged on the periphery of the ring plate unit;
the inner side of the middle inner shell unit is provided with a middle inner shell connecting plate (321), and the adjacent middle inner shell units are connected with each other through the middle inner shell connecting plate (321).
3. The modular double-shell rectangular pipe jacking host machine as claimed in claim 2, wherein: a front body connecting plate (222) is arranged on the rear side of the front body inner shell unit, and the front body connecting plate (222) is detachably connected with the ring plate unit;
the chest plate connecting plate (231) is arranged along the radial direction of the pipe jacking host machine, the front inner shell connecting plate (221) and the middle inner shell connecting plate (321) are arranged along the axial direction of the pipe jacking host machine, and the front connecting plate (222) is arranged along the circumferential direction of the pipe jacking host machine.
4. The modular double-shell rectangular push pipe host machine as claimed in claim 2, wherein: shield tail inner shell (42) are including shield tail inner shell unit, the inboard of shield tail inner shell unit is equipped with shield tail inner shell connecting plate (421), and adjacent shield tail inner shell unit passes through shield tail inner shell connecting plate (421) interconnect, the front side of shield tail inner shell unit is equipped with shield tail connecting plate (422), shield tail connecting plate (422) can be dismantled and connect on well internal shell unit.
5. The modular double-shell rectangular push pipe host machine as claimed in claim 4, wherein: the middle body shell (31) and the shield tail shell (41) are both rectangular tubular structures.
6. The modular double-shell rectangular pipe jacking host machine as claimed in claim 1, wherein: the cutter head (1) comprises a large cutter head structure (11) and a small cutter head structure (12), the large cutter head structure (11) and the small cutter head structure (12) are arranged on the front body (2) at intervals, the large cutter head structure (11) comprises a large cutter head and a cutter head drive, the small cutter head structure (12) comprises a small cutter head and a cutter head drive, and the cutter head drive is arranged on the front body (2); the front body (2) is provided with a screw conveyor, the middle body (3) is provided with a hinged oil cylinder, and the shield tail (4) is provided with a pipe-removing oil cylinder.
7. The modular double-shell rectangular pipe jacking host machine as claimed in claim 2, wherein: a cutter head connecting plate (232) is arranged on the chest plate unit, and the cutter head (1) is detachably connected to the cutter head connecting plate (232); be equipped with support column (34) in well body (3), support column (34) include cylinder and connecting seat, the connecting seat is established on well body inner shell unit, the cylinder can be dismantled and connect on the connecting seat.
8. The method for unshelling and disassembling the modular double-shell rectangular pipe jacking main machine according to any one of claims 1 to 7, comprising the following steps:
s01, disassembling accessory components of the shield tail: the pipe jacking machine tunnels to a designated position, and an auxiliary component of the pipe jacking machine is removed;
s02, disassembling a shield tail: firstly, injecting oil and pressurizing between a shield tail outer shell (41) and a shield tail inner shell (42) through an oil injection device to separate the shield tail outer shell (41) from the shield tail inner shell (42), then erecting a frame body in the shield tail inner shell (42), performing tie fixing on the shield tail inner shell (42), firstly disassembling a shield tail inner shell unit positioned on the upper left, sequentially disassembling the connection between the shield tail inner shell unit and an adjacent shield tail inner shell unit, the connection between the shield tail inner shell unit and a middle body (3), and the connection between the shield tail inner shell unit and the shield tail outer shell (41), then integrally and horizontally drawing out the shield tail inner shell unit backwards and transporting away, and disassembling the shield tail inner shell unit and transporting away one by one according to the operations;
s03, disassembling the midbody: firstly, dismantling the accessory components in the middle body (3), then dismantling the middle body (3) according to the operation mode of dismantling the shield tail in the step S02, and transporting away the dismantled components;
s04, disassembling the precursor: firstly reinforcing soil bodies around the cutter head (1) and the front body (2), temporarily fixing the cutter head (1) on a front body shell (21) after the soil bodies are stably reinforced, then disassembling the front body (2) according to the operation mode of disassembling the shield tail in the step S02, and transporting the disassembled components away;
s05, disassembling the cutter head: the large cutter disc and the small cutter disc are sequentially detached and carried away;
s06, leaving the housing: after the internal components of the shield main machine are transported away, the front body shell (21), the middle body shell (31) and the shield tail shell (41) are left in the tunnel as primary support structures.
9. The remanufacturing method of a modular double-shell rectangular push pipe main unit as claimed in any one of claims 1 to 7, comprising the steps of:
s11, assembly precursor: manufacturing a new precursor outer shell (21), firstly installing the precursor inner shell units positioned at the left lower part, connecting and pre-tightening the precursor inner shell units and the precursor outer shell (21), then installing the precursor inner shell units one by one, and fastening after all the precursor inner shell units are installed;
s12, assembling a cutter head: firstly, the cutter head drive positioned in the middle is installed in a front body chest plate (23), and then the cutter head drives positioned on two sides are installed;
s13, assembling an intermediate body: manufacturing a new middle body outer shell (31), and assembling the middle body inner shell (32) according to the operation mode of installing the precursor in the step S11;
s14, assembling a shield tail: mounting the middle body accessory component, manufacturing a new shield tail outer shell (41), and assembling a shield tail inner shell (42) according to the operation mode of mounting the front body in the step S11;
s15, assembling a middle shield tail: inserting the assembled shield tail (4) into the middle body (3) and fastening;
s15, assembling a precursor midbody: and (3) mounting auxiliary components, assembling the front body (2) and the middle body (3), and debugging the whole machine after the assembly is finished.
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| CN202210902338.0A CN114961758B (en) | 2022-07-29 | 2022-07-29 | Modularized double-shell rectangular pipe jacking host machine and shelling, disassembling and remanufacturing method |
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| CN202210902338.0A CN114961758B (en) | 2022-07-29 | 2022-07-29 | Modularized double-shell rectangular pipe jacking host machine and shelling, disassembling and remanufacturing method |
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| CN114961758A (en) | 2022-08-30 |
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