CN220412587U - Shield segment lifting assembly head - Google Patents
Shield segment lifting assembly head Download PDFInfo
- Publication number
- CN220412587U CN220412587U CN202322331585.2U CN202322331585U CN220412587U CN 220412587 U CN220412587 U CN 220412587U CN 202322331585 U CN202322331585 U CN 202322331585U CN 220412587 U CN220412587 U CN 220412587U
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- eccentric
- piece
- hoisting
- assembly head
- fixing device
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- 238000000034 method Methods 0.000 abstract description 15
- 230000008569 process Effects 0.000 abstract description 13
- 230000005484 gravity Effects 0.000 abstract description 4
- 238000012546 transfer Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 206010066054 Dysmorphism Diseases 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
The utility model belongs to the technical field of shield segment lifting equipment, in particular to a shield segment hoisting assembly head. Comprises a connecting and fixing device and a limiting disc, wherein an eccentric lifting part is arranged on the limiting disc, the central axis of the eccentric lifting part and the central axis of the connecting and fixing device are arranged in a staggered mode. According to the technical scheme, in order to adapt to the situation that the gravity center is deviated due to unbalanced stress in the hoisting process of the heterologous pipe piece, so that the wear of the pipe piece crane matched with the eccentric pipe piece is serious, the eccentric hoisting piece is added on the limiting disc by improving the shield pipe piece hoisting assembly head, the stress state of the eccentric hoisting piece can be changed in the hoisting process, and the eccentric hoisting piece is deviated to the side with larger mass on the heterologous pipe piece, so that the stress of the heterologous pipe piece is more balanced when the special pipe piece is hoisted by the pipe piece crane. The manual assistance and support pad operation in the pipe segment hole transfer process are effectively reduced, and the service life and operation safety of the pipe segment crane are greatly improved.
Description
Technical Field
The utility model belongs to the technical field of shield segment lifting equipment, in particular to a shield segment hoisting assembly head.
Background
In the construction of a tunnel by using a shield method, after the shield is pushed, the segments are quickly assembled into rings, the shield segments are main assembly members for the shield construction, are the innermost barrier of the tunnel, and play roles in resisting soil layer pressure, underground water pressure and some special loads.
The long mountain tunnel constructed by adopting the double-shield TBM is generally smaller than 4 segments with hexagonal symmetrical structures in the lining adopted by the hole diameter of 5 meters, and for the tunnel diameter of more than 5 meters, the segments which are generally adopted are special-shaped asymmetrical structures, and the gravity center of the component is unstable due to the asymmetrical structures, so that the shaking amplitude is larger in the process of hoisting and transferring in the hole. The damage of long-term eccentric stress to segment crane is very big, also has certain security risk in the work progress simultaneously.
Aiming at the situation, most of the current construction projects do not adopt effective control measures, and part of the construction projects adopt measures such as manual assistance and transportation, square timber with a stopper and the like, but the technical problem cannot be fundamentally solved.
Disclosure of Invention
The utility model aims at: aiming at the problem of eccentric stress of the special-shaped duct piece in the hoisting and transferring process in the prior art, the shield duct piece hoisting assembly head is provided.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the shield segment lifting assembly head comprises a connecting and fixing device and a limiting disc, wherein an eccentric lifting part is arranged on the limiting disc, and the central axis of the eccentric lifting part is arranged in a staggered mode with the central axis of the connecting and fixing device.
According to the technical scheme, in order to adapt to the situation that the gravity center is deviated due to unbalanced stress in the hoisting process of the heterologous pipe piece, so that the wear of the pipe piece crane matched with the eccentric pipe piece is serious, the eccentric hoisting piece is added on the limiting disc by improving the shield pipe piece hoisting assembly head, the stress state of the eccentric hoisting piece can be changed in the hoisting process, and the eccentric hoisting piece is deviated to the side with larger mass on the heterologous pipe piece, so that the stress of the heterologous pipe piece is more balanced when the special pipe piece is hoisted by the pipe piece crane. The manual assistance and support pad operation in the pipe segment hole transfer process are effectively reduced, and the service life and operation safety of the pipe segment crane are greatly improved.
As a preferable scheme of the utility model, the connecting and fixing device is a connecting rod piece, and connecting threads are formed on the outer side of the connecting rod piece.
Preferably, the connecting thread is of a thread type.
Preferably, the cross section of the eccentric lifting part is in a fusiform shape, and the bottom of the eccentric lifting part is provided with an eccentric connecting part fixedly connected with the limiting disc.
Preferably, the eccentric lifting member comprises a disc-shaped or rectangular structure. The eccentric lifting element is used for being matched with the lifting device.
Preferably, a mounting piece is arranged at the top of the eccentric lifting piece. The installation piece is an inner hexagonal hole, and the hoisting assembly head can be matched with the shield segment better through the mechanism.
As a preferred embodiment of the present utility model, the diameter of the limiting plate is not smaller than the diameter of the connection fixing device. The setting of limit plate can be used for confirming the depth that connection fixing device gets into shield segment.
As a preferable scheme of the utility model, the length of the connecting and fixing device is L, and L is not less than 10cm.
As a preferable scheme of the utility model, the eccentric distance W between the central axis of the eccentric connecting part and the central axis of the connecting and fixing device is 40-60mm. The eccentric distance, namely the offset torque range is 40-60mm.
As a preferable mode of the utility model, the structure of the connecting and fixing device comprises any one of a column body and a prismatic table.
In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:
according to the technical scheme, in order to adapt to the situation that the gravity center is deviated due to unbalanced stress in the hoisting process of the heterologous pipe piece, so that the wear of the pipe piece crane matched with the eccentric pipe piece is serious, the eccentric hoisting piece is added on the limiting disc by improving the shield pipe piece hoisting assembly head, the stress state of the eccentric hoisting piece can be changed in the hoisting process, and the eccentric hoisting piece is deviated to the side with larger mass on the heterologous pipe piece, so that the stress of the heterologous pipe piece is more balanced when the special pipe piece is hoisted by the pipe piece crane. The manual assistance and support pad operation in the pipe segment hole transfer process are effectively reduced, and the service life and operation safety of the pipe segment crane are greatly improved.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
FIG. 2 is a schematic side elevational view of the present utility model;
FIG. 3 is a cross-sectional view of the A-A side of the present utility model;
FIG. 4 is a schematic top view of the present utility model;
FIG. 5 is an enlarged view of the Z portion of the present utility model;
icon: 1-connecting and fixing device; 11-connecting threads; 2-a limiting disc; 3-eccentric lifting members; 4-eccentric connection; 5-mount.
Detailed Description
The present utility model will be described in detail with reference to the accompanying drawings.
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Example 1
The embodiment provides a shield segment lifting assembly head aiming at the problem of eccentric stress existing in the lifting and transferring process of the special-shaped segment in the prior art. Specifically, as shown in fig. 1-5, the device comprises a connection fixing device 1 and a limiting disc 2, wherein the diameter of the limiting disc 2 is not smaller than that of the connection fixing device 1. The setting of the limiting disc 2 can be used to determine the depth of the connection fixation device 1 into the shield segment.
The limiting plate 2 is provided with an eccentric lifting part 3, and the central axis of the eccentric lifting part 3 and the central axis of the connecting and fixing device 1 are arranged in a staggered mode. The scheme utilizes the lever principle to increase the offset moment of the hoisting assembly device stressed by the coaxial center, thereby changing the stress state of hoisting, forming a new device, the structure is integrally processed by adopting high-strength alloy or composite materials, the connecting and fixing device 1 can be a solid structure or a hollow structure, in the embodiment, a hollow structure is provided, and the specific thickness of the connecting and fixing device 1 depends on the hoisting weight of a component. The limiting disc 2 and the eccentric lifting part 3 are of solid structures.
Specifically, the connection fixing device 1 is a connection rod, and the outer side of the connection rod is provided with a connection thread 11. The connecting screw thread 11 is in a screw thread form, the length L of the connecting rod piece depends on the thickness of the special-shaped duct piece and the design length of the embedded sleeve, the design length of the screw thread of the connecting rod piece is not lower than 10cm, and the structure of the connecting and fixing device 1 comprises any one of a cylinder body and a prismatic table.
The section of the eccentric lifting part 3 is in a fusiform shape, and an eccentric connecting part 4 fixedly connected with the limiting disc 2 is arranged at the bottom of the eccentric lifting part 3. The eccentric lifting element 3 comprises a disc-shaped structure, a rectangular structure or a structure of other shape. The eccentric lifting element 3 is used for being matched with a lifting hole of a lifting device. So that the shape thereof needs to be adapted to the shape of the lifting hole. The length of the top eccentric lifting member 3 depends on the size of the crane, but the locking disc of the lifting part of the device is not preferably smaller than 8cm, and the diameter of the eccentric lifting member 3 is preferably larger than 10cm in view of the safety of lifting. The top of the eccentric lifting member 3 is provided with a mounting member 5. The installation piece 5 is an inner hexagonal hole, and the hoisting assembly head can be matched with the shield segment better through the mechanism.
The eccentric distance W between the central axis of the eccentric connecting part 4 and the central axis of the connecting and fixing device 1 is 40-60mm. In this example, W is 45mm.
The hoisting assembly head of the embodiment adopts an integral processing structure, can be processed in a split mode and finally welded and assembled, and is used under the cooperation of a segment crane of the double-shield TBM. When the device is used, the device is arranged in the pipe piece lifting hole, and the pipe piece crane is transported after being locked by the locking device of the pipe piece crane.
The hoisting assembly head of the embodiment is suitable for all transportation and hoisting construction adopting eccentric structure segment lining, and comprises shield, TBM, jacking pipe and other large-scale horizontal transportation.
The problem that the eccentric dysmorphism section of jurisdiction component hoist and mount in-process atress was unstable left and right rocking has effectually been solved to the hoist and mount assembly head of this embodiment, uses simple device to reach the steady effect of transportation, and the effectual manual assistance and the operation of supporting that have reduced section of jurisdiction hole internal transport process greatly improve section of jurisdiction loop wheel machine's life and operation safety.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (10)
1. The shield segment lifting assembly head is characterized by comprising a connecting and fixing device (1) and a limiting disc (2), wherein an eccentric lifting part (3) is arranged on the limiting disc (2), and the central axis of the eccentric lifting part (3) is arranged in a dislocation mode with the central axis of the connecting and fixing device (1).
2. The shield segment lifting assembly head according to claim 1, wherein the connection fixing device (1) is a connection rod piece, and a connection thread (11) is arranged on the outer side of the connection rod piece.
3. Shield segment lifting assembly head according to claim 2, characterized in that the connecting screw thread (11) is of the screw thread type.
4. The shield segment lifting assembly head according to claim 1, wherein the cross section of the eccentric lifting part (3) is in a fusiform shape, and an eccentric connecting part (4) fixedly connected with the limiting disc (2) is arranged at the bottom of the eccentric lifting part (3).
5. Shield segment lifting assembly according to claim 4, characterized in that the eccentric lifting member (3) comprises a disc-shaped structure or a rectangular structure.
6. The shield segment lifting assembly head according to claim 4, wherein a mounting piece (5) is arranged at the top of the eccentric lifting piece (3).
7. The shield segment lifting assembly head according to claim 4, wherein the eccentric distance between the central axis of the eccentric connecting portion (4) and the central axis of the connecting and fixing device (1) is W, and the range of W is 40-60mm.
8. The shield segment lifting assembly head according to any one of claims 1-7, wherein the diameter of the limiting disc (2) is not smaller than the diameter of the connecting and fixing device (1).
9. The shield segment lifting assembly head according to claim 8, wherein the length of the connecting and fixing device (1) is L, and L is not lower than 10cm.
10. The shield segment lifting assembly head according to claim 8, wherein the structure of the connection fixing device (1) comprises any one of a column body and a prismatic table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322331585.2U CN220412587U (en) | 2023-08-29 | 2023-08-29 | Shield segment lifting assembly head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322331585.2U CN220412587U (en) | 2023-08-29 | 2023-08-29 | Shield segment lifting assembly head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220412587U true CN220412587U (en) | 2024-01-30 |
Family
ID=89656575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322331585.2U Active CN220412587U (en) | 2023-08-29 | 2023-08-29 | Shield segment lifting assembly head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220412587U (en) |
-
2023
- 2023-08-29 CN CN202322331585.2U patent/CN220412587U/en active Active
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