CN119244256A - An assembled bearing structure and operation method of a shield machine propulsion hydraulic cylinder - Google Patents
An assembled bearing structure and operation method of a shield machine propulsion hydraulic cylinder Download PDFInfo
- Publication number
- CN119244256A CN119244256A CN202411754615.3A CN202411754615A CN119244256A CN 119244256 A CN119244256 A CN 119244256A CN 202411754615 A CN202411754615 A CN 202411754615A CN 119244256 A CN119244256 A CN 119244256A
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- hydraulic cylinder
- bearing structure
- bearing plate
- shield
- propulsion
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
-
- 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
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/0621—Shield advancing devices
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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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)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses an assembled bearing structure of a shield machine propulsion hydraulic cylinder and an operation method, wherein the assembled bearing structure comprises a middle shield shell, a tail shield shell, a bearing structure I and a bearing structure II, the bearing structure I is arranged on the middle shield shell, the bearing structure II is arranged on the tail shield shell, the bearing structure I and the bearing structure II are correspondingly arranged front and back, and the propulsion hydraulic cylinder is arranged on the bearing structure I and the bearing structure II and is detachably connected with the bearing structure I and the bearing structure II. According to the invention, the pushing hydraulic cylinder is borne by adopting the assembled bearing structure, so that stable and safe bearing of the pushing hydraulic cylinder is ensured, the pushing hydraulic cylinder is directly lifted and translated during disassembly and assembly, the pushing hydraulic cylinder does not need to be axially moved and then lifted and assembly and disassembly difficulties of the pushing hydraulic cylinder are reduced, and the disassembly and assembly efficiency of the pushing hydraulic cylinder is greatly improved.
Description
Technical Field
The invention relates to the technical field of shield tunneling machine construction, in particular to an assembled bearing structure of a shield tunneling machine pushing hydraulic cylinder and an operation method.
Background
The shield method is an underground space construction method which utilizes a cutter disc and a cutter at the front end of a main machine of a shield machine to excavate a rock-soil body, assembles prefabricated segments under the protection of a shield shell, provides counter force for a pushing hydraulic cylinder and makes snakelike progress in stratum.
Along with the vigorous development of track traffic engineering in China, the construction of a shield method is increasingly perfected, and the frequency of tunnel crossing Jiang Hehai lakes is increased. Under the conditions of large span, short working period and complex geology, the technology of 'in-hole shell discarding and disintegration' becomes a new development trend.
When the shield machine adopts the technology of 'shell discarding and disassembling in a hole', the hydraulic cylinder pushed by the shield machine needs to be detached from the shield shell for repeated use. In the prior art, a dismantling device for dismantling a propulsion hydraulic cylinder and a corresponding dismantling method are disclosed in CN105108468B, and a method for dismantling a shield tunneling machine propulsion cylinder in a hole is also disclosed in CN 111775099B. The application objects of the two demolishing methods are fixedly installed shield machine propulsion cylinders, and the concrete operation mode is that demolishing equipment is firstly utilized to be connected with the shield machine propulsion cylinders, then the shield machine propulsion cylinders are driven to translate along the axis, after the shield machine propulsion cylinders are completely translated and towed out, the shield machine propulsion cylinders are re-fixed and lifted, and then the shield machine propulsion cylinders are lowered and transferred. The shield machine propulsion oil cylinder fixedly installed has the problems of complex operation and lower efficiency when the dismantling method is adopted, and the dismantling difficulty of the shield machine propulsion oil cylinder is further increased due to the fact that the space of a shield tunnel is narrow, and the shield machine propulsion oil cylinder needs a large space for translation and hauling out, so that a large operation space is needed for operation, the dismantling procedure of the shield machine propulsion oil cylinder is relatively fixed, the whole dismantling period cannot be changed according to construction requirements, and the whole dismantling period is long and the flexibility is poor. The invention provides an assembled bearing structure of a shield machine pushing hydraulic cylinder and an operation method for solving the problems.
Disclosure of Invention
The invention provides an assembled bearing structure of a pushing hydraulic cylinder of a shield machine and an operation method, wherein the pushing hydraulic cylinder of the shield machine is borne by adopting the assembled bearing structure, and the disassembly operation efficiency of the pushing hydraulic cylinder is greatly improved on the basis of ensuring stable bearing of the pushing hydraulic cylinder.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the utility model provides a shield constructs assembled bearing structure of quick-witted propulsion pneumatic cylinder for bear the propulsion pneumatic cylinder of shield constructs the machine, the propulsion pneumatic cylinder interval sets up on shield constructs the machine in, including well shield shell, tail shield shell, bearing structure one and bearing structure two, bearing structure one sets up on well shield shell, bearing structure two sets up on the tail shield shell, bearing structure one and bearing structure two correspond the setting from beginning to end, the propulsion pneumatic cylinder sets up on bearing structure one and bearing structure two to can dismantle with bearing structure one and bearing structure two and be connected.
Further, the first bearing structure and the second bearing structure comprise a fixed bearing plate and a movable bearing plate, the fixed bearing plate of the first bearing structure is fixedly connected to the middle shield shell, the fixed bearing plate of the second bearing structure is fixedly connected to the tail shield shell, and the movable bearing plate is detachably connected to the fixed bearing plate.
Further, the fixed loading board includes mounting panel and fixed slot, mounting panel fixed connection is on well shield shell and tail shield shell, fixed slot fixed connection is on the mounting panel, the fixed slot opening sets up inwards, the movable loading board is arranged in the fixed slot.
Further, the fixed bearing plate and the movable bearing plate are respectively provided with a clamping groove, the clamping grooves on the fixed bearing plate and the movable bearing plate are oppositely arranged to form a circular bayonet, and the pushing hydraulic cylinder is positioned in the circular bayonet.
Further, the movable bearing plate is detachably connected to the fixed bearing plate through a connecting bolt.
The operation method of the assembled bearing structure of the shield tunneling machine pushing hydraulic cylinder comprises the following steps:
S1, prefabricating a component, namely manufacturing a fixed bearing plate and a movable bearing plate according to a drawing, and prefabricating the fixed bearing plate on a shield shell of a shield machine;
s2, lifting a propulsion hydraulic cylinder, namely after the shield tunneling machine has a well descending condition, moving the propulsion hydraulic cylinder to be installed to a shield shell through a mounting vehicle, lifting the propulsion hydraulic cylinder to an installation height by lifting the mounting vehicle, keeping a lifting state, connecting the propulsion hydraulic cylinder with the middle shield, and enabling the propulsion hydraulic cylinder to be positioned in a clamping groove of a fixed bearing plate;
S3, fixing the propelling hydraulic cylinder, namely, keeping the lifting state of the propelling hydraulic cylinder, butting a movable bearing plate with a fixed bearing plate, connecting and locking the movable bearing plate through a connecting bolt, dropping the mounting vehicle after the movable bearing plate is locked, and disconnecting the mounting vehicle from lifting the propelling hydraulic cylinder, and carrying and fixing the propelling hydraulic cylinder through a first bearing structure and a second bearing structure;
s4, shield tunneling machine construction, namely performing well-down assembly, debugging and tunneling construction of the shield tunneling machine;
s5, disassembling the shield machine, namely performing shield machine shell discarding and disassembling operation, and hoisting the mounting vehicle to the underground after the shield machine is provided with a disassembling condition of the propelling hydraulic cylinder;
S6, lifting the propulsion hydraulic cylinder, namely lifting the mounting vehicle to be in contact with a cylinder body of the propulsion hydraulic cylinder, then adjusting the lifting height of the mounting vehicle until the weight of the propulsion hydraulic cylinder is completely borne by the mounting vehicle, keeping the lifting state of the mounting vehicle, and then detaching the movable bearing plate from the fixed bearing plate to enable the propulsion hydraulic cylinder to be completely dropped on the mounting vehicle;
and S7, the pushing hydraulic cylinder is disassembled, namely the mounting vehicle is controlled to descend, and the pushing hydraulic cylinder is driven to descend together when the mounting vehicle descends until the pushing hydraulic cylinder descends to be in position, and then the pushing hydraulic cylinder is transferred and lifted out of the ground.
The invention has the following beneficial effects:
The assembly type bearing structure is adopted to bear the propelling hydraulic cylinder, so that stable and safe bearing of the propelling hydraulic cylinder is ensured, the lifting translation of the propelling hydraulic cylinder is directly carried out during disassembly and assembly, the propelling hydraulic cylinder does not need to be axially moved and then lifted, the disassembly and assembly difficulty of the propelling hydraulic cylinder is reduced, and the disassembly and assembly efficiency of the propelling hydraulic cylinder is greatly improved;
The gravity center of the propelling hydraulic cylinder is unstable when the propelling hydraulic cylinder moves axially, safety accidents are very easy to occur in the operation process, the safety is poor, and the propelling hydraulic cylinder is directly lifted and translated after the bearing structure is opened, so that the problems are avoided, and the operation safety is effectively improved;
The requirement of axial movement of the pushing hydraulic cylinder can be met only by a larger space, the space of the shield tunnel is smaller, and the disassembly and assembly operation space is smaller, so that disassembly and assembly operation can be performed only on the basis of the larger space, the operation procedures are relatively fixed, the assembly type bearing structure can be lifted after the fixation of the pushing hydraulic cylinder is released, the larger operation space is not needed, synchronous operation can be performed with the preamble operation, and the operation efficiency is improved and is more flexible;
Different equipment is needed when the propelling hydraulic cylinder moves axially, moves up and down, translates and transports the operation, and the operation process needs to be transported back and forth between the equipment, so that the propelling hydraulic cylinder is damaged easily, the operation difficulty and the operation time length are increased, the assembly, disassembly and transfer operation of the propelling hydraulic cylinder can be realized only by using the lifting mounting vehicle after the assembly type bearing structure is adopted, and the device has the advantages of being higher in efficiency, better in protection and reduced in operation amount.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic diagram of a pair of thrust cylinders carrying a load-bearing structure according to the present invention;
FIG. 3 is a schematic diagram of a carrying state of two pairs of pushing hydraulic cylinders of the carrying structure of the present invention;
FIG. 4 is a schematic side view of the overall structure of the load bearing structure of the present invention;
FIG. 5 is a schematic view of a structure of a fixed carrier plate according to the present invention;
Fig. 6 is a schematic diagram of a movable carrier structure according to the present invention.
The hydraulic cylinder is driven by the hydraulic cylinder with the reference numerals of 1, a middle shield shell, 2, a tail shield shell, 3, a first bearing structure, 31, a fixed bearing plate, 311, a mounting plate, 312, a fixed groove, 32, a movable bearing plate, 4, a second bearing structure and 5.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify 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 should not be construed as limiting the present invention.
As shown in fig. 1, in a first embodiment of the present invention, an assembled bearing structure of a propulsion hydraulic cylinder of a shield machine is configured to bear propulsion hydraulic cylinders 5 of the shield machine, where the propulsion hydraulic cylinders 5 are disposed on a middle shield of the shield machine at intervals, each propulsion hydraulic cylinder 5 carries a load through a first bearing structure 3 and a second bearing structure 4, the assembled bearing structure includes a middle shield shell 1, a second shield shell 2, a first bearing structure 3 and a second bearing structure 4, the first bearing structure 3 is disposed on the middle shield shell 1, the second bearing structure 4 is disposed on the second shield shell 2, the first bearing structure 3 and the second bearing structure 4 are disposed in front of and behind and correspond to the propulsion hydraulic cylinders 5, and are respectively located in the middle and at the tail of the propulsion hydraulic cylinders 5, so as to implement stable bearing of the propulsion hydraulic cylinders 5, and the propulsion hydraulic cylinders 5 are disposed on the first bearing structure 3 and the second bearing structure 4 and are detachably connected with the first bearing structure 3 and the second bearing structure 4.
As shown in fig. 1,2, 3 and 4, further, the first bearing structure 3 and the second bearing structure 4 each include a fixed bearing plate 31 and a movable bearing plate 32, the fixed bearing plate 31 of the first bearing structure 3 is fixedly connected to the middle shield shell 1, the fixed bearing plate 31 of the second bearing structure 4 is fixedly connected to the tail shield shell 2, and the movable bearing plate 32 is detachably connected to the fixed bearing plate 31 and is located below the fixed bearing plate 31.
The first embodiment is specifically applied in that the fixed bearing plate 31 is fixedly connected to the middle shield shell 1 and the tail shield shell 2, the movable bearing plate 32 is fixed on the fixed bearing plate 31 in a bolt connection manner to form an assembled structure, when the pushing hydraulic cylinder 5 is detached, the movable bearing plate 32 is separated from the fixed bearing plate 31 by opening bolts, at the moment, the lower part of the pushing hydraulic cylinder 5 is not blocked, the pushing hydraulic cylinder 5 can be detached by falling down after the pushing hydraulic cylinder 5 is detached from the middle shield, the pushing hydraulic cylinder 5 is not required to be completely pushed out along the axis of the pushing hydraulic cylinder outwards, then the falling operation is carried out, the working procedure is saved, the operation is more convenient, the fixed bearing plate 31 fixed on the middle shield shell 1 and the tail shield shell 2 is discarded along with the shield shell, then the movable bearing plate 32 and the pushing hydraulic cylinder 5 are transferred to the next working section together for installation, and when the pushing hydraulic cylinder 5 is lifted in place, the movable bearing plate 32 is clamped into the pre-assembled fixed bearing plate 31, and stable bearing of the pushing hydraulic cylinder 5 can be realized after the bolts are used for carrying out.
Further, the pushing hydraulic cylinders 5 are arranged at intervals along the circumferential direction of the shield tunneling machine, the bearing structures I3 and II 4 are arranged in one-to-one correspondence with the pushing hydraulic cylinders 5, the bearing structures I3 are arranged on the middle shield shell 1 at intervals along the axial direction, and the bearing structures II 4 are arranged on the tail shield shell 2 at intervals along the axial direction.
As shown in fig. 4, 5 and 6, further, the fixed carrier plate 31 includes a mounting plate 311 and a fixing slot 312, the mounting plate 311 of the first carrier structure 3 is fixedly connected to the middle shield shell 1, the mounting plate 311 of the second carrier structure 4 is fixedly connected to the tail shield shell 2, the fixing slot 312 is fixedly connected to the mounting plate 311, an opening of the fixing slot 312 is set towards a direction of an axle center of the shield machine, and the movable carrier plate 32 is located in the fixing slot 312.
Further, the fixed slot 312 is a U-shaped slot, and the movable supporting plate 32 is a straight plate.
Further, the slot direction of the fixed slot 312 is set along the circumferential direction of the shield tunneling machine, and the slot structure is adopted to realize stable fixation of the movable bearing plate 32, so that the connection stability and safety of the structure are ensured, and the slot opening is downward, so that the movable bearing plate 32 is convenient to install.
Further, the mounting plate 311 and the fixing groove 312 are of a unitary, integral structure.
As shown in fig. 5 and 6, further, the fixed bearing plate 31 and the movable bearing plate 32 are respectively provided with a clamping groove, the clamping grooves are formed on the plate surfaces of the fixed bearing plate 31 and the movable bearing plate 32, the axes of the clamping grooves are collinear with the axes of the pushing hydraulic cylinders 5, the clamping grooves on the fixed bearing plate 31 and the clamping grooves on the movable bearing plate 32 are oppositely arranged, after the movable bearing plate 32 is mounted on the fixed bearing plate 31, two opposite clamping grooves are combined to form a circular bayonet, and after the movable bearing plate 32 is mounted, the pushing hydraulic cylinders 5 are clamped in the circular bayonet to be stable.
Further, the movable bearing plate 32 is detachably connected to the fixed bearing plate 31 through a connecting bolt, and two bolts are used for connecting the fixed bearing plate 31 and the movable bearing plate 32, and are respectively located at two sides of the clamping groove.
Further, the fixed bearing plate 31 is welded to the middle shield shell 1 and the tail shield shell 2.
The operation method of the assembled bearing structure of the shield tunneling machine pushing hydraulic cylinder comprises the following steps:
S1, prefabricating a component, namely manufacturing a fixed bearing plate 31 and a movable bearing plate 32 according to a drawing, and pre-welding the fixed bearing plate 31 on a shield shell of a shield machine, wherein during welding, the front and rear correspondence of the fixed bearing plate 31 of a first bearing structure 3 and the fixed bearing plate 31 of a second bearing structure 4 is ensured;
s2, lifting a propulsion hydraulic cylinder, namely after the shield tunneling machine has a well descending condition, moving the propulsion hydraulic cylinder 5 to be installed to a shield shell through a mounting vehicle, adjusting the position to enable the propulsion hydraulic cylinder 5 to reach the mounting position, lifting the propulsion hydraulic cylinder 5 upwards by lifting the mounting vehicle, enabling the propulsion hydraulic cylinder 5 to be positioned in a clamping groove of a fixed bearing plate 31, keeping a lifting state, and then connecting the front end of the propulsion hydraulic cylinder 5 with a middle shield;
S3, fixing the propelling hydraulic cylinder, namely keeping the lifting state of the propelling hydraulic cylinder 5, sequentially inserting the movable bearing plate 32 of the first bearing structure 3 and the movable bearing plate 32 of the second bearing structure 4 into the corresponding fixed bearing plate 31, connecting and locking through connecting bolts, dropping the mounting vehicle after the movable bearing plate 32 is locked and the connection is checked to be stable, and lifting the propelling hydraulic cylinder 5 by the mounting vehicle, wherein the first bearing structure 3 and the second bearing structure 4 bear and fix the propelling hydraulic cylinder 5;
s4, shield tunneling machine construction, namely performing well-down assembly, debugging and tunneling construction of the shield tunneling machine;
s5, disassembling the shield machine, namely performing shield machine shell discarding and disassembling operation, and hoisting the mounting vehicle to the underground after the shield machine is provided with a disassembling condition of the propelling hydraulic cylinder;
S6, lifting the propulsion hydraulic cylinder, namely moving the mounting vehicle to the shield shell, adjusting the position to enable the mounting vehicle to reach the position right below the propulsion hydraulic cylinder 5, lifting the mounting vehicle to be in contact with the cylinder body of the propulsion hydraulic cylinder 5, adjusting the lifting height of the mounting vehicle until the weight of the propulsion hydraulic cylinder 5 is completely borne by the mounting vehicle, keeping the lifting state of the mounting vehicle, and then detaching the movable bearing plate 32 from the fixed bearing plate 31, wherein no obstacle exists below the propulsion hydraulic cylinder 5, so that the propulsion hydraulic cylinder 5 is completely dropped on the mounting vehicle;
S7, the pushing hydraulic cylinder is detached, namely the mounting vehicle is controlled to descend, the pushing hydraulic cylinder 5 is driven to descend together when the mounting vehicle descends until the pushing hydraulic cylinder 5 descends to be in place, and then the pushing hydraulic cylinder 5 is transferred and lifted out of the ground.
When the disassembly and assembly operation of the propelling hydraulic cylinder 5 is carried out, the segment assembler is not required to axially translate the segment, the segment assembler and the oil cylinder bracket are not required to carry out the cooperation operation, the propelling hydraulic cylinder 5 is not required to be transferred between different devices, the disassembly and assembly of the propelling hydraulic cylinder 5 can be realized by adopting an installation vehicle consisting of a lifting vehicle and a lifting manipulator, the defects of complicated operation, large potential safety hazard, fixed working procedures and large requirement on the operation environment in the existing construction scheme are avoided, the operation and the realization are easier, and the operation efficiency is greatly improved.
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 characteristics 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.
Claims (6)
1. The assembly type bearing structure of the shield machine pushing hydraulic cylinder is used for bearing the pushing hydraulic cylinder (5) of the shield machine, the pushing hydraulic cylinder (5) is arranged on a middle shield of the shield machine at intervals, and is characterized by comprising a middle shield shell (1), a tail shield shell (2), a bearing structure I (3) and a bearing structure II (4), wherein the bearing structure I (3) is arranged on the middle shield shell (1), the bearing structure II (4) is arranged on the tail shield shell (2), the bearing structure I (3) and the bearing structure II (4) are correspondingly arranged front and back, and the pushing hydraulic cylinder (5) is arranged on the bearing structure I (3) and the bearing structure II (4) and is detachably connected with the bearing structure I (3) and the bearing structure II (4).
2. The assembly type bearing structure of a shield tunneling machine propulsion hydraulic cylinder according to claim 1, wherein the first bearing structure (3) and the second bearing structure (4) comprise a fixed bearing plate (31) and a movable bearing plate (32), the fixed bearing plate (31) of the first bearing structure (3) is fixedly connected to the middle shield shell (1), the fixed bearing plate (31) of the second bearing structure (4) is fixedly connected to the tail shield shell (2), and the movable bearing plate (32) is detachably connected to the fixed bearing plate (31).
3. The assembly type bearing structure of a shield machine pushing hydraulic cylinder according to claim 2, wherein the fixed bearing plate (31) comprises a mounting plate (311) and a fixing groove (312), the mounting plate (311) is fixedly connected to the middle shield shell (1) and the tail shield shell (2), the fixing groove (312) is fixedly connected to the mounting plate (311), an opening of the fixing groove (312) is inwards, and the movable bearing plate (32) is located in the fixing groove (312).
4. The assembly type bearing structure of a shield tunneling machine propulsion hydraulic cylinder according to claim 2, wherein the fixed bearing plate (31) and the movable bearing plate (32) are respectively provided with clamping grooves, the clamping grooves on the fixed bearing plate (31) and the clamping grooves on the movable bearing plate (32) are oppositely arranged to form a circular bayonet, and the propulsion hydraulic cylinder (5) is positioned in the circular bayonet.
5. The assembly type bearing structure of a shield tunneling machine pushing hydraulic cylinder according to claim 2, wherein the movable bearing plate (32) is detachably connected to the fixed bearing plate (31) through a connecting bolt.
6. The method of operation of the fabricated load-bearing structure of a shield tunneling machine propulsion hydraulic cylinder according to claim 4, comprising the steps of:
S1, prefabricating a component, namely manufacturing a fixed bearing plate (31) and a movable bearing plate (32) according to a drawing, and prefabricating the fixed bearing plate (31) on a shield shell of a shield machine;
S2, lifting a propulsion hydraulic cylinder, namely after the shield tunneling machine has a well descending condition, moving the propulsion hydraulic cylinder (5) to be mounted to a shield shell through a mounting vehicle, lifting the propulsion hydraulic cylinder (5) to a mounting height by lifting the mounting vehicle, keeping a lifting state, connecting the propulsion hydraulic cylinder (5) with a middle shield, and enabling the propulsion hydraulic cylinder (5) to be positioned in a clamping groove of a fixed bearing plate (31);
S3, fixing the propelling hydraulic cylinder, namely keeping the lifting state of the propelling hydraulic cylinder (5), butting a movable bearing plate (32) with a fixed bearing plate (31), connecting and locking through a connecting bolt, dropping a mounting vehicle after the movable bearing plate (32) is locked, and lifting the propelling hydraulic cylinder (5) by the mounting vehicle, and carrying and fixing the propelling hydraulic cylinder (5) through a first bearing structure (3) and a second bearing structure (4);
s4, shield tunneling machine construction, namely performing well-down assembly, debugging and tunneling construction of the shield tunneling machine;
s5, disassembling the shield machine, namely performing shield machine shell discarding and disassembling operation, and hoisting the mounting vehicle to the underground after the shield machine is provided with a disassembling condition of the propelling hydraulic cylinder;
S6, lifting the propulsion hydraulic cylinder, namely lifting the mounting vehicle to be in contact with a cylinder body of the propulsion hydraulic cylinder (5), adjusting the lifting height of the mounting vehicle until the weight of the propulsion hydraulic cylinder (5) is completely borne by the mounting vehicle, keeping the lifting state of the mounting vehicle, and then detaching the movable bearing plate (32) from the fixed bearing plate (31) to enable the propulsion hydraulic cylinder (5) to be completely dropped on the mounting vehicle;
s7, the pushing hydraulic cylinder is detached, wherein the mounting vehicle is controlled to descend, and the pushing hydraulic cylinder (5) is driven to descend together when the mounting vehicle descends until the pushing hydraulic cylinder (5) descends to be in place, and then the pushing hydraulic cylinder (5) is transferred and lifted out of the ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411754615.3A CN119244256B (en) | 2024-12-03 | 2024-12-03 | Operation method of assembled bearing structure of shield tunneling machine propulsion hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411754615.3A CN119244256B (en) | 2024-12-03 | 2024-12-03 | Operation method of assembled bearing structure of shield tunneling machine propulsion hydraulic cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN119244256A true CN119244256A (en) | 2025-01-03 |
| CN119244256B CN119244256B (en) | 2025-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202411754615.3A Active CN119244256B (en) | 2024-12-03 | 2024-12-03 | Operation method of assembled bearing structure of shield tunneling machine propulsion hydraulic cylinder |
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| CN (1) | CN119244256B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2805362A1 (en) * | 1977-03-25 | 1978-10-05 | Ut Vasuttervezoe Vallalat | Advancing shield tunnelling machine - has frame inside shield supporting cutting tools at front and cladding material erector at rear |
| CN214062969U (en) * | 2021-01-06 | 2021-08-27 | 中铁工程装备集团有限公司 | Automatic deviation correcting device for propulsion oil cylinder and active hinged type shield tunneling machine using same |
| CN216406821U (en) * | 2021-12-16 | 2022-04-29 | 中铁工程装备集团有限公司 | General type assembly structure of propulsion hydraulic cylinder |
| CN216553921U (en) * | 2022-01-10 | 2022-05-17 | 中铁工程装备集团有限公司 | Detachable single-cylinder rotation preventing device for passive hinged shield and shield machine |
-
2024
- 2024-12-03 CN CN202411754615.3A patent/CN119244256B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2805362A1 (en) * | 1977-03-25 | 1978-10-05 | Ut Vasuttervezoe Vallalat | Advancing shield tunnelling machine - has frame inside shield supporting cutting tools at front and cladding material erector at rear |
| CN214062969U (en) * | 2021-01-06 | 2021-08-27 | 中铁工程装备集团有限公司 | Automatic deviation correcting device for propulsion oil cylinder and active hinged type shield tunneling machine using same |
| CN216406821U (en) * | 2021-12-16 | 2022-04-29 | 中铁工程装备集团有限公司 | General type assembly structure of propulsion hydraulic cylinder |
| CN216553921U (en) * | 2022-01-10 | 2022-05-17 | 中铁工程装备集团有限公司 | Detachable single-cylinder rotation preventing device for passive hinged shield and shield machine |
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| Publication number | Publication date |
|---|---|
| CN119244256B (en) | 2025-02-28 |
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