CN214787383U - Shield constructs bracket strutting arrangement that starts - Google Patents
Shield constructs bracket strutting arrangement that starts Download PDFInfo
- Publication number
- CN214787383U CN214787383U CN202120878131.5U CN202120878131U CN214787383U CN 214787383 U CN214787383 U CN 214787383U CN 202120878131 U CN202120878131 U CN 202120878131U CN 214787383 U CN214787383 U CN 214787383U
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- shield
- machine
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- bracket
- supports
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Abstract
The utility model provides a shield constructs bracket strutting arrangement that originates, relates to the shield and originates equipment technical field, including the base be provided with two parallel and the support of symmetry installation on the base, the upper surface of support is the V type setting, and the shield constructs the machine and places two on the support to the shield constructs the machine with the upper surface of support is rolling friction setting in the originating hole-entering in-process. This novel reduction shield constructs quick-witted resistance of advancing the hole, can also adjust the gesture of shield structure machine simultaneously, makes the shield structure machine begin to advance the hole and goes on smoothly.
Description
Technical Field
The utility model relates to a shield constructs equipment technical field that starts, concretely relates to shield constructs bracket strutting arrangement that starts.
Background
The shield machine is a special engineering machine for tunneling, is high-tech construction equipment for realizing one-step excavation and hole formation such as tunneling, unearthing, supporting and the like, and is widely applied to tunnel engineering of subways, railways, highways, municipal works, hydropower and the like.
When the shield machine starts in the starting well, because of no bottom support, an starting bracket needs to be installed in front of a tunnel portal in the starting well to bear the shield machine without entering the tunnel and the installation of the negative ring duct pieces, when the shield machine completely enters the tunnel and the friction force between the duct piece tunnel installed in the tunnel and the soil body can meet the tunneling jacking force of the shield machine, the negative ring duct pieces, the reaction frame and the bracket in the starting well can be removed one by one, the starting of the shield machine is completed, and the tunneling work is started.
The shield tunneling machine is characterized in that in the process that the shield tunneling machine starts to enter a hole, a V-shaped steel plate is installed on a bracket, a lubricant (such as butter) is coated on the steel plate to reduce friction resistance, the shield tunneling machine is placed on the bracket, the steel plate serves as a contact surface, and the shield tunneling machine is pushed into the hole. In the process that the shield tunneling machine moves on the bracket, because the steel plate is fixed by welding, the bearing force and the structure of the steel plate are slightly changed during welding, the steel plate is easy to deform due to heating in the friction advancing process of the shield tunneling machine, and the posture of the shield tunneling machine is deviated; and the torque force can be transmitted to the rear part by the cutter head tunneling in the tunneling process of the shield tunneling machine, and the torque force can also influence the posture of the shield tunneling machine on the supporting plate and is not beneficial to the starting of the shield tunneling machine.
Disclosure of Invention
In order to solve the problem of the prior art, the utility model provides a shield constructs bracket strutting arrangement that starts reduces the shield and constructs the machine resistance that advances in the hole, can also adjust the gesture that constructs the machine simultaneously, makes the shield construct the machine and begin to advance in the hole and go on smoothly.
The purpose of the utility model can be realized by the following technical proposal: the utility model provides a shield constructs bracket strutting arrangement that starts, includes the base be provided with two supports that parallel and symmetry were installed on the base, the upper surface of support is V type setting, and the shield constructs the machine and places two on the support to the shield constructs the machine with the upper surface of support is rolling friction setting in the originated hole-entering in-process.
Preferably, the support includes supporting seat and rolling assembly, the up end of supporting seat is made for the steel sheet, two on the support the upper end of supporting seat is "V" type setting, rolling assembly is including setting to the steel running roller of one row of installation, the center pin of steel running roller with the up end of supporting seat is parallel, and the center pin of steel running roller with the center pin of shield structure machine is perpendicular.
Preferably, two side surfaces of the base are respectively provided with a hydraulic cylinder; the number of the hydraulic cylinders on each side is 2, and the hydraulic cylinders are respectively positioned at two ends of the side surface of the base; and the end part of a telescopic rod of the hydraulic cylinder is fixedly arranged on the side surface of the base.
Preferably, the central shaft of the telescopic rod of the hydraulic cylinder is perpendicular to the side surface of the base.
Preferably, the mounting seat of the hydraulic cylinder is fixedly mounted on the side wall of the originating well.
The utility model discloses a theory of use and beneficial effect include: after the bracket is installed, firstly, lubricating oil can be smeared on the steel roller, then the shield machine is transferred to the bracket, after other works (such as a reaction frame, a negative ring segment and the like) are prepared, a cutter head of a front shield of the shield machine tunnels into a hole, after the shield machine tunnels for one ring, a machine body of the shield machine pushes the front shield machine to move forward for one ring, the shield machine moves forward on the bracket for a distance of one ring, rolling friction exists between the front shield machine and the bracket in the moving process, the resistance is greatly reduced, the condition that the bracket is deformed and damaged due to stress can be avoided, and the shield machine has better maintenance degree on the stable tunneling posture of the shield machine; in addition, once the soil body encounters a larger hard stone to cause the cutter head to be suddenly increased by torsion force during tunneling, when the posture of the shield machine is inclined under the action of the torsion force, the balance can be realized by adjusting the jacking forces of the four hydraulic cylinders, so that the redundant torsion forces borne by the bracket and the shield machine are offset, and the stability of the posture of the shield machine during tunneling is ensured.
Drawings
Fig. 1 is a schematic front view of a shield starting bracket supporting device according to an embodiment of the present invention.
Fig. 2 is a schematic top view of a shield starting bracket supporting device according to an embodiment of the present invention.
Wherein like parts are designated by like reference numerals throughout the several views; the figures are not drawn to scale.
Detailed Description
The invention is further described with reference to the following figures and examples.
Examples
A supporting device for a shield starting bracket comprises a base 1, wherein two supports 2 which are arranged in parallel and symmetrically are arranged on the base 1, the upper surfaces of the supports 2 are arranged in a V shape, a shield machine 3 is placed on the two supports 2, and the shield machine 3 and the upper surfaces of the supports 2 are arranged in a rolling friction mode in the starting and hole entering process; the support seats 2 comprise support seats 21 and rolling assemblies, the upper end surfaces of the support seats 21 are made of steel plates, the upper ends of the support seats 21 on the two support seats 2 are arranged in a V shape, each rolling assembly comprises steel rollers 22 arranged in a row, the central axes of the steel rollers 22 are parallel to the upper end surfaces of the support seats 21, and the central axes of the steel rollers 22 are perpendicular to the central axis of the shield tunneling machine 3; after moving to the bracket, the shield tunneling machine 3 is in contact with the two rows of steel rollers 22, moves forwards on the steel rollers 22 in the tunneling process, forms rolling friction with the steel rollers 22, has small friction resistance, is easy to control the posture of the shield tunneling machine 3, and ensures that the bracket is not easy to deform.
Two side surfaces of the base 1 are respectively provided with a hydraulic cylinder 4; the number of the hydraulic cylinders 4 on each side is 2, and the hydraulic cylinders are respectively positioned at two ends of the side surface of the base 1; the end part of a telescopic rod of the hydraulic cylinder 4 is fixedly arranged on the side surface of the base 1, a mounting seat of the hydraulic cylinder 4 is fixedly arranged on the side wall of the starting well, and a central shaft of a telescopic rod of the hydraulic cylinder 4 is vertically arranged with the side surface of the base 1; when the torsion of the shield tunneling machine 3 is suddenly increased to cause the internal stress of the bracket to be concentrated or to be slightly deformed, the stretching of the hydraulic cylinder 4 is controlled, and the stress system of the balance bracket and the posture of the shield tunneling machine 3 are adjusted.
The utility model discloses use principle and beneficial effect include: after the bracket is installed, lubricating oil can be coated on the steel roller 22, the shield machine 3 is transferred to the bracket, after other works (such as a reaction frame, a negative ring segment and the like) are prepared, a cutter head of a front shield of the shield machine 3 is tunneled into a hole, after one ring is tunneled, a machine body of the shield machine 3 is pushed to advance for one ring, the shield machine 3 moves forward on the bracket for a distance of one ring, rolling friction exists between the shield machine and the bracket in the moving process, the resistance is greatly reduced, the condition that the bracket is deformed and damaged due to stress can be avoided, and the shield machine 3 has better maintenance degree on the tunneling posture stability; in addition, once the soil body encounters a larger hard stone to cause the cutter head to be suddenly increased by torsion force during tunneling, when the posture of the shield tunneling machine 3 is inclined to incline under the action of the torsion force, the top thrust forces of the four hydraulic cylinders 4 can be adjusted to balance, so that the redundant torsion forces borne by the bracket and the shield tunneling machine 3 are offset, and the stability of the posture of the shield tunneling machine 3 during tunneling is ensured.
The structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention does not have the substantial significance in the technology, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy which can be produced by the present invention and the purpose which can be achieved by the present invention. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.
The present invention has been described above with reference to the preferred embodiments, but the scope of protection of the present invention is not limited thereto, and all technical solutions falling within the scope of the claims are within the scope of protection of the present invention. Various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict.
Claims (5)
1. The supporting device for the shield starting bracket is characterized by comprising a base (1), wherein two supports (2) which are arranged in parallel and symmetrically are arranged on the base (1), the upper surfaces of the supports (2) are arranged in a V shape, a shield machine (3) is placed on the two supports (2), and the shield machine (3) and the upper surface of the support (2) are arranged in a rolling friction mode in the starting and hole entering process.
2. The shield starting bracket supporting device according to claim 1, wherein the supports (2) comprise supporting seats (21) and rolling assemblies, the upper end surfaces of the supporting seats (21) are made of steel plates, the upper end surfaces of the supporting seats (21) on the two supports (2) are arranged in a V shape, the rolling assemblies comprise steel rollers (22) arranged in a row, the central axes of the steel rollers (22) are parallel to the upper end surfaces of the supporting seats (21), and the central axes of the steel rollers (22) are perpendicular to the central axis of the shield machine (3).
3. The shield originating cradle support arrangement of claim 1, characterized in that hydraulic cylinders (4) are mounted on both sides of the base (1); the number of the hydraulic cylinders (4) on each side is (2), and the hydraulic cylinders are respectively positioned at two ends of the side surface of the base (1); the end part of a telescopic rod of the hydraulic cylinder (4) is fixedly arranged on the side surface of the base (1).
4. The shield originating cradle support arrangement of claim 3, characterized in that the central axis of the telescopic rod of the hydraulic cylinder (4) is arranged perpendicular to the side of the base (1).
5. The shield launch carriage support arrangement according to claim 4, characterized in that the mounting of the hydraulic cylinder (4) is fixedly mounted on a side wall of the launch well.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120878131.5U CN214787383U (en) | 2021-04-26 | 2021-04-26 | Shield constructs bracket strutting arrangement that starts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120878131.5U CN214787383U (en) | 2021-04-26 | 2021-04-26 | Shield constructs bracket strutting arrangement that starts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214787383U true CN214787383U (en) | 2021-11-19 |
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ID=78689937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120878131.5U Active CN214787383U (en) | 2021-04-26 | 2021-04-26 | Shield constructs bracket strutting arrangement that starts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214787383U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115614050A (en) * | 2022-12-19 | 2023-01-17 | 中南大学 | Shield air-pushing equipment and construction method thereof |
-
2021
- 2021-04-26 CN CN202120878131.5U patent/CN214787383U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115614050A (en) * | 2022-12-19 | 2023-01-17 | 中南大学 | Shield air-pushing equipment and construction method thereof |
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