CN219755983U - Mounting device for shield tunnel guiding system - Google Patents
Mounting device for shield tunnel guiding system Download PDFInfo
- Publication number
- CN219755983U CN219755983U CN202320969687.4U CN202320969687U CN219755983U CN 219755983 U CN219755983 U CN 219755983U CN 202320969687 U CN202320969687 U CN 202320969687U CN 219755983 U CN219755983 U CN 219755983U
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- steel plate
- bracket
- nut
- welded
- screw rod
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 89
- 239000010959 steel Substances 0.000 claims abstract description 89
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 9
- 238000009434 installation Methods 0.000 abstract description 7
- 238000005259 measurement Methods 0.000 abstract description 7
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 10
- 238000003466 welding Methods 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005641 tunneling Effects 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Abstract
The utility model relates to the technical field of plane control measurement of a shield circular tunnel, in particular to a multi-angle adjustable mounting device for a shield tunnel guide system instrument, which comprises a bracket, wherein the bracket comprises a top steel plate, a bottom steel plate, a long steel plate and a short steel plate, the long steel plate is connected with the top steel plate and the bottom steel plate in a hinge manner, the bottom of the short steel plate is welded with the bottom steel plate, a telescopic rod is welded at the top, a first screw is arranged at the top of the telescopic rod, and a chute is reserved on the top steel plate; the forced centering disc is welded at the center of the bottom steel plate, and a round hole is reserved in the middle; the level bubble is welded on the bottom steel plate; the lifting lug is fixedly connected with the second screw rod, and the second screw rod hole is vertically arranged above the bracket. Compared with the prior art, the utility model has the advantages that: the disassembly and the installation are convenient; the state is stable, and the measurement accuracy is improved; an expansion bolt is not required to be perforated on the duct piece, so that the quality of the duct piece is ensured; and the influence of displacement of the bolts on the precision of the guide system instrument in the shield pushing process is avoided.
Description
Technical Field
The utility model relates to the technical field of shield circular tunnel plane control measurement, in particular to a multi-angle adjustable mounting device for a shield tunnel guide system instrument.
Background
The shield tunnel construction is a comprehensive construction technology, and is a mechanized construction method in the construction of the undermining method. The embedded depth can be quite deep, is not influenced by ground buildings, weather, traffic and the like, has quite high mechanization and automation degree, and is widely applied to construction of urban subways, river crossing tunnels and the like.
The shield construction measurement mainly controls the position and the advancing direction of a shield machine, and aims to ensure that the shield advances according to a design axis and meets the control requirement of tunnel axis errors after segment assembly. And determining the position of the shield machine by using a control point in the tunnel, applying different thrusts by using a thrust cylinder, and adjusting the position and the thrust direction of the shield so as to ensure that the tunneling of the shield machine is propelled according to the designed line direction. The shield propulsion is only a part of the shield construction technology, and the control measurement in the shield tunneling process is the most important in the whole tunnel construction process. Whether the tunnel can meet the design requirement or not, whether the shield can successfully receive the tunnel or not, and the plane control point plays an important role in forcedly centering the bracket.
Therefore, the technical problems to be solved at present are: the accuracy of the guide system instrument is ensured, and the influence on the accuracy caused by the thrust of the shield machine and the like in the shield pushing process is avoided.
Disclosure of Invention
The technical problem to be solved by the utility model is to overcome the defects of the prior art, and provide the installation device for the shield tunnel guiding system, which is convenient to detach, convenient to install, stable in state and high in accuracy, so as to meet the requirements of the shield method construction control measurement operation.
In order to achieve the above object, a mounting device for a shield tunnel guiding system is designed, a bracket comprising a top steel plate, a bottom steel plate, a long steel plate and a short steel plate; the long steel plate is respectively and movably connected with the top steel plate and the bottom steel plate, one end of the bottom of the short steel plate is welded with the bottom steel plate, one end of the top is provided with a telescopic rod piece, the top of the telescopic rod piece is provided with a first threaded rod, one side of the top steel plate, which is close to the short steel plate, is provided with a sliding groove, the first threaded rod penetrates through the sliding groove, a nut is arranged above the sliding groove, and a nut is arranged below the sliding groove; the forced centering disc is welded to the center of the steel plate at the bottom of the bracket, a round hole is reserved in the middle of the forced centering disc, and the round hole is used for penetrating through the third screw rod; the leveling air bubbles are welded on the steel plate at the bottom of the bracket; the lifting lug is fixedly connected with the second screw rod, and the second screw rod passes through the top steel plate and is vertically arranged above the bracket.
Preferably, a third nut and a fourth nut are arranged on the second screw, and the third nut and the fourth nut are used for fixing the top steel plate.
Preferably, the movable connection of the long steel plate and the top steel plate as well as the bottom steel plate is hinge connection.
Preferably, the telescopic rod is made of steel bar threads.
Preferably, the steel plate and the bracket are coated with an anti-rust protection layer.
Preferably, the lifting lug is connected with the shield segment lifting hole in a matched mode.
Compared with the prior art, the utility model has the advantages that:
1. the pipe piece lifting hole is convenient to detach and install, so that the installation speed of the guide system instrument is greatly improved;
2. the state is stable after installation, and the measurement accuracy of the guide system instrument is ensured.
3. The traditional installation method is abandoned, the expansion bolts are not required to be installed on the duct piece in a punching mode, and the quality of the duct piece is guaranteed.
4. The bracket fixed by the segment bolts is more likely to displace due to the influence of thrust of the shield machine and the like in the shield pushing process, so that the accuracy of a guide system instrument is influenced.
Drawings
FIG. 1 is a schematic view of a mounting device according to the present utility model;
FIG. 2 is a general view of the use of the mounting device of the present utility model;
fig. 3 is a top view of a top steel plate of the mounting device provided by the utility model.
In the figure: 1. lifting lugs; 2. a bracket; 3. forced centering of the disk; 4. a telescopic rod; 5. leveling the air bubbles; 6. a short steel plate; 7. a long steel plate; 8. a bottom steel plate; 9. a top steel plate; 10. a first screw; 11. a second screw; 12. a third screw; 13. a first nut; 14. a second nut; 15. a third nut; 16. a fourth nut; 17. a chute; 18. a first placed state; 19. and a second placed state.
Detailed Description
The construction and principles of the present utility model will be readily apparent to those skilled in the art from the following description taken in conjunction with the accompanying drawings. 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.
As shown in fig. 1, the present utility model includes a bracket 2, a forced centering plate 3, a leveling bubble 5, and a lifting lug 1.
The bracket 2 comprises a top steel plate, a bottom steel plate 8 and two long and short steel plates with opposite left and right sides, wherein the long steel plate 7 is respectively and movably connected with the top steel plate and the bottom steel plate 8 in a hinge connection mode.
Both the long steel plate 7 and the top steel plate can rotate with the connecting shaft as the axis.
The long steel plate 7 is 40cm, the short steel plate 6 is 30cm, the bottom steel plate 8 is 40cm, and the top steel plate is more than 48cm.
The bottom one end and the bottom steel sheet 8 welding of short steel sheet 6, top one end welding have telescopic link 4, and telescopic link 4 is formed by the customization of reinforcing bar turnbuckle, and telescopic link 4 is used for adjusting the overall length of short steel sheet 6 one side for bracket 2 becomes variable rectangle frame, can cooperate tunnel shape, makes the shield machine in the bracket 2 can remain the state that the level was placed all the time in the different positions of tunnel.
As shown in fig. 2, the telescopic rod 4 is telescopic to the intermediate position in the first placement state 18, the bracket 2 is rectangular, and the telescopic rod 4 is telescopic to the topmost end in the second placement state 19.
The top of the telescopic rod 4 is fixedly connected with a first threaded rod 10, a first nut 13 and a second nut 14 are arranged on the first threaded rod 10, the first nut 13 is arranged above the sliding groove 17, and the second nut 14 is arranged below the sliding groove 17 and is respectively used for clamping the sliding groove 17 to fix a top steel plate.
As shown in fig. 3, an elongated chute 17 is reserved on the side of the top steel plate facing the short steel plate 6, the length of the chute 17 is 8cm, and the chute 17 is used for penetrating the first screw rod 10 on the top of the telescopic rod 4.
As shown in fig. 2, when the bracket 2 is in the first placement state 18, the top steel plate is perpendicular to the steel plates on the left and right sides, the bracket 2 is rectangular, and the required top steel plate has the shortest length and is consistent with the length of the bottom steel plate 8, so that the first screw 10 is positioned at the rightmost end of the chute 17; when the pallet 2 is in the second rest position 19, the top steel plate forms an acute angle with the side of the short steel plate 6 and an obtuse angle with the side of the long steel plate 7, and the required top steel plate length is longest, so that the first screw 10 is located at the leftmost end of the chute 17.
The forced centering disc 3 is welded to the center of the steel plate 8 at the bottom of the bracket 2, the forced centering disc 3 comprises a forced centering disc 3 of a total rotation instrument, the forced centering disc 3 of the total station is used for installing the total rotation instrument, a round hole is reserved in the middle of the forced centering disc 3 and used for penetrating through a third screw 12, and the third screw 12 plays a role in fixing the total station.
The lifting lug 1 is a special screw matched with the corresponding pipe piece lifting hole in size, the lifting lug 1 is fixedly connected with the second screw rod 11, the second screw rod 11 passes through the top steel plate and is vertically arranged above the bracket 2, the second screw rod 11 is provided with a third nut 15 and a fourth nut 16, the third nut 15 is arranged above the top steel plate, and the fourth nut 16 is arranged below the top steel plate and is respectively used for fixing the top steel plate.
The lifting lug 1 is connected with a shield segment lifting hole in a matching way.
The steel plates of the lifting lug 1 and the bracket 2 are coated with an anti-rust protection layer.
The leveling bubble 5 is mounted on the upper portion of the bottom steel plate 8 of the bracket 2 by a screw for judging the level state.
The processing and mounting steps of the utility model are as follows:
step one: the bracket 2 is cut into corresponding sizes by adopting steel plates with corresponding thickness;
step two: the frame structure adopts welding connection to forcedly weld the center of the middle plate 3 corresponding to the center position of the right-angle side waist;
step three: the welding seam at the joint of the bracket 2 and the total station forced centering disc 3 is fully welded;
step four, checking and correcting after welding and forming to ensure that the size and shape of the mounting device meet the requirements;
step five: the processed installation device is subjected to dirt removal and rust removal treatment;
step six: cleaning the surface after rust removal, and then spraying antirust paint;
step seven: cleaning the surface of the bolt hole of the part to be installed before installation;
step eight: the measuring staff installs the total station on this device and levels and with the external battery of instrument and radio station with roll the area ligature on the long limit can use.
The using method of the bracket 2 comprises the following steps:
the bracket 2 is connected with the assembled shield segment lifting hole, the adjustable telescopic rod is adjusted to tightly attach the bracket 2 to the segment as much as possible, the level bubble 5 on the bracket 2 is adjusted, whether the level bubble 5 indicates the level is observed, and if the level bubble indicates the offset, the total station is placed after the level is reached by adjusting the telescopic rod.
The above description is only specific to the embodiments of the utility model, but the scope of the utility model is not limited thereto, and any person skilled in the art who is skilled in the art to which the utility model pertains shall apply to the technical solution and the novel concept according to the utility model, and shall all be covered by the scope of the utility model.
Claims (6)
1. A mounting device for a shield tunnel guidance system, comprising a bracket comprising a top steel plate, a bottom steel plate, a long steel plate and a short steel plate;
the long steel plate is respectively and movably connected with the top steel plate and the bottom steel plate, one end of the bottom of the short steel plate is welded with the bottom steel plate, one end of the top is provided with a telescopic rod piece, the top of the telescopic rod piece is provided with a first threaded screw rod, one side of the top steel plate, which is close to the short steel plate, is provided with a sliding groove, the first threaded screw rod penetrates through the sliding groove, and the first threaded screw rod is respectively provided with a first nut and a second nut at the upper part and the lower part of the sliding groove;
the forced centering disc is welded to the center of the steel plate at the bottom of the bracket, a round hole is reserved in the middle of the forced centering disc, and the round hole is used for penetrating through the third screw rod;
the leveling air bubbles are welded on the steel plate at the bottom of the bracket;
the lifting lug is fixedly connected with the second screw rod, and the second screw rod passes through the top steel plate and is vertically arranged above the bracket.
2. A mounting device for a shield tunnel guide system according to claim 1, wherein a third nut and a fourth nut are provided on the second screw, the third nut and the fourth nut being used for fixing a top steel plate.
3. A mounting arrangement for a shield tunnel guide system according to claim 1, wherein the articulation of the long steel plates with the top and bottom steel plates is a hinge connection.
4. A mounting arrangement for a shield tunnel guide system according to claim 1, wherein the telescopic rod is made of a rebar car wire.
5. A mounting arrangement for a shield tunnel guide system according to claim 1, wherein the steel plate and the bracket are each coated with a rust protection layer.
6. The mounting device for the shield tunnel guiding system according to claim 1, wherein the lifting lug is connected with the shield segment lifting hole in a matched mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320969687.4U CN219755983U (en) | 2023-04-26 | 2023-04-26 | Mounting device for shield tunnel guiding system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320969687.4U CN219755983U (en) | 2023-04-26 | 2023-04-26 | Mounting device for shield tunnel guiding system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219755983U true CN219755983U (en) | 2023-09-26 |
Family
ID=88091248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320969687.4U Active CN219755983U (en) | 2023-04-26 | 2023-04-26 | Mounting device for shield tunnel guiding system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219755983U (en) |
-
2023
- 2023-04-26 CN CN202320969687.4U patent/CN219755983U/en active Active
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