CN219362955U - Hoisting device for removing negative ring pipe slice of shield - Google Patents
Hoisting device for removing negative ring pipe slice of shield Download PDFInfo
- Publication number
- CN219362955U CN219362955U CN202320527683.0U CN202320527683U CN219362955U CN 219362955 U CN219362955 U CN 219362955U CN 202320527683 U CN202320527683 U CN 202320527683U CN 219362955 U CN219362955 U CN 219362955U
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- CN
- China
- Prior art keywords
- ring pipe
- negative ring
- lifting
- shield
- steel plate
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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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- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model relates to the technical field of subway shield tunnel construction, in particular to a lifting device for removing a shield negative ring pipe slice, which comprises a negative ring pipe slice symmetrically provided with two lifting holes, and further comprises a lifting screw rod, wherein the lifting screw rod downwards passes through the lifting holes and is sequentially sleeved with a steel plate cushion block and a nut, the negative ring pipe slice is positioned above the steel plate cushion block, and a right-angle beam is welded outwards on the front side and the rear side of the steel plate cushion block. The device solves the problems that the bearing force of the whole negative ring segment is poor and the number of disassembly and assembly steps is large during repeated operation in the prior art, and time and labor are wasted.
Description
Technical Field
The utility model relates to the technical field of subway shield tunnel construction, in particular to a hoisting device for removing a shield negative ring pipe slice.
Background
The shield construction is widely adopted because the whole process of the safe excavation, lining and tunneling is fast, the shield tunneling, the soil discharging and the lining construction can be automated, the environmental impact is small, the construction labor intensity is low, and the like, and the shield starting is an indispensable part of the shield construction and is also one of the difficulties, the negative ring segment is also called a temporary segment, and the annular segment is arranged between the reaction frame and the shield jack during the shield starting so as to apply the forward advancing acting force to the tunneling of the shield machine. When the shield starts, in the starting working vertical shaft, the rear end of the shield machine is provided with a reaction frame, an annular duct piece is arranged between the reaction frame and the shield jack so as to apply forward pushing force to the shield machine until the tail of the shield mechanism enters the hole on the other side of the well wall and a distance is reserved forward, so that the friction force between the stratum and the positive annular duct piece can offset the reaction force generated by pushing the shield machine, then the negative annular duct piece between the reaction frame and the tail is used for completing the service life, and the negative annular duct piece is required to be removed so as to accelerate the construction efficiency, and the convenience is provided for later construction. The negative ring pipe piece is removed, so that complex and dangerous operation is realized, and the device for fixing the negative ring pipe piece is required to be lifted by lifting equipment to remove the negative ring pipe piece.
The Chinese patent with the publication number of CN212105889U discloses a hoisting device for dismantling a negative ring pipe, which relieves the problem that the damage of a hoisting hole in the dismantling process of the negative ring pipe is serious to a certain extent and the pipe piece is most likely to be separated to cause dangerous accidents, but the negative ring pipe is mostly reinforced concrete pipe pieces, the self weight of the negative ring pipe is great, and the bearing capacity of the whole negative ring pipe is limited only by arranging a lower limiting piece at the hoisting hole in the prior art; and when carrying out the repeated operation of demolishing hoist and mount of a plurality of negative ring section of jurisdictions, need demolish the device from a negative ring section of jurisdiction, install the device on another negative ring section of jurisdiction again, the device includes upper mounting and lower mounting, lower locating part and bolster, therefore dismantle and install step more, waste time and energy.
Disclosure of Invention
The utility model aims to provide a lifting device for removing a shield negative ring segment, which solves the problems that the existing device provided in the background art has poor supporting force on the whole negative ring segment and has more disassembly and assembly steps during repeated operation, and is time-consuming and labor-consuming.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides a shield constructs negative ring pipe piece and demolishs and use hoist device, its structure includes that the symmetry is equipped with the negative ring section of jurisdiction of two lifting holes, still includes the hoist screw rod, and the hoist screw rod includes screw thread section and smooth section, welding rings on the smooth section, screw thread section downwardly passing lifting hole and cover in proper order establish steel sheet cushion and nut, negative ring pipe piece is located steel sheet cushion top, the front and back both sides of steel sheet cushion all outwards welds a right angle beam.
As a further scheme of the utility model: the thickness of the steel plate cushion block is 2cm.
As still further aspects of the utility model: the nut adopts an M27 nut.
As still further aspects of the utility model: the outer end of the right angle beam is provided with an upward bulge, and the negative ring pipe piece is positioned between the front bulge and the rear bulge.
Compared with the prior art, the utility model has the beneficial effects that: 1. the steel plate cushion block and the right-angle beams welded on the two sides of the steel plate cushion block increase the contact surface and the bearing force to the negative ring pipe piece, and the hoisting effect is good. 2. The steel plate cushion block and the right-angle beam are welded, and the disassembly and the assembly are completed in one step, so that the whole device has few disassembly and assembly steps, and repeated operation is time-saving and labor-saving.
Drawings
Fig. 1 is a schematic perspective view of the present utility model.
Fig. 2 is a schematic perspective view of a second embodiment of the present utility model.
Fig. 3 is a schematic perspective view of the third embodiment of the present utility model.
Wherein: 1 lifting ring, 2 lifting screw rods, 3 negative ring segments, 4 nuts, 5 steel plate cushion blocks and 6 right angle beams.
Detailed Description
The utility model will be described in detail below with reference to the drawings in connection with embodiments.
Referring to fig. 1-3, the utility model provides a lifting device for removing a shield negative ring pipe slice, which structurally comprises a negative ring pipe slice 3 symmetrically provided with two lifting holes, and further comprises a lifting screw 2, wherein the lifting screw 2 comprises a threaded section and a smooth section, a lifting ring 1 is welded on the smooth section, the threaded section passes through the lifting holes downwards and is sleeved with a steel plate cushion block 5 and a nut 4 in sequence, the negative ring pipe slice 3 is positioned above the steel plate cushion block 5, and a right-angle beam 6 is welded outwards on the front side and the rear side of the steel plate cushion block 5.
Preferably, the thickness of the steel plate cushion block 5 is 2cm.
Preferably, the nut 4 is an M27 nut.
Preferably, the outer end of the right-angle beam 6 is provided with an upward bulge, the negative ring pipe piece 3 is positioned between the front bulge and the rear bulge, and the bulge has limiting and fixing effects on the negative ring pipe piece 3, so that the hoisting process is more stable. After this device is installed, the top contact negative ring section of jurisdiction 3 of right angle roof beam 6, and as shown in fig. 3, in the fore-and-aft direction of negative ring section of jurisdiction 3, both sides all set up steel sheet cushion 5 and the right angle roof beam 6 of both sides and do the support, increase contact surface and bearing power, avoid causing the damage to the hoist and mount hole, hoist and mount effect is better.
The application method of the device; the lifting screw 2 downwards passes through the lifting hole, a threaded section below the lifting hole is sleeved into the steel plate cushion block 5, the steel plate cushion block 5 and right-angle beams 6 welded on two sides of the steel plate cushion block are attached to the negative ring pipe sheet 3, then the nut 4 is screwed down, the installation of the device is completed, then a lifting hook of the lifting device is connected with the lifting ring 1 for lifting, and the negative ring pipe sheet 3 is removed. The negative ring pipe piece 3 is hung to a designated place, and after the negative ring pipe piece 3 is stably landed, the device is dismantled, including unscrewing the nut 4, dismantling the steel plate cushion block 5, and pulling out the lifting screw rod 2. Repeating the above actions to hoist the next negative ring segment 3.
While the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes may be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.
Claims (4)
1. The utility model provides a shield constructs burden ring pipe piece demolishs and uses hoist device, is equipped with the burden ring pipe piece of two lifting holes, its characterized in that including the symmetry: including the hoist and mount screw rod, the hoist and mount screw rod includes screw thread section and smooth section, welding rings on the smooth section, screw thread section downwardly passing the lifting hole and cover in proper order establish steel sheet cushion and nut, negative ring pipe piece are located steel sheet cushion top, and the front and back both sides of steel sheet cushion all outwards welds a right angle beam.
2. The lifting device for removing the negative ring pipe slice of the shield according to claim 1, wherein the lifting device comprises: the thickness of the steel plate cushion block is 2cm.
3. The lifting device for removing the negative ring pipe slice of the shield according to claim 2, wherein the lifting device comprises: the nut adopts an M27 nut.
4. A lifting device for removing a negative ring segment of a shield according to claim 3, wherein: the outer end of the right angle beam is provided with an upward bulge, and the negative ring pipe piece is positioned between the front bulge and the rear bulge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320527683.0U CN219362955U (en) | 2023-03-17 | 2023-03-17 | Hoisting device for removing negative ring pipe slice of shield |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320527683.0U CN219362955U (en) | 2023-03-17 | 2023-03-17 | Hoisting device for removing negative ring pipe slice of shield |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219362955U true CN219362955U (en) | 2023-07-18 |
Family
ID=87141867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320527683.0U Active CN219362955U (en) | 2023-03-17 | 2023-03-17 | Hoisting device for removing negative ring pipe slice of shield |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219362955U (en) |
-
2023
- 2023-03-17 CN CN202320527683.0U patent/CN219362955U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |