CN212027792U - Well shield hinge ring refabrication structure - Google Patents
Well shield hinge ring refabrication structure Download PDFInfo
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- CN212027792U CN212027792U CN202020701809.8U CN202020701809U CN212027792U CN 212027792 U CN212027792 U CN 212027792U CN 202020701809 U CN202020701809 U CN 202020701809U CN 212027792 U CN212027792 U CN 212027792U
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- shield
- hinge ring
- welding
- extension steel
- steel plate
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Abstract
The utility model discloses a well shield hinge ring refabrication structure has solved among the prior art problem that the shield hinge ring reconstruction cost is high. The utility model comprises a middle shield and an extension steel plate, wherein the hinge ring is cut off from the middle shield, the end surface of the hinge ring is cut off from the middle shield is a first welding surface, the front end surface of the extension steel plate is a second welding surface, the first welding surface is contacted with the second welding surface, and the first welding surface is smoothly and fixedly connected with the second welding surface by welding; and a fixed support piece is fixedly arranged on the outer side between the middle shield and the extension steel plate. The utility model discloses well shield hinge ring that will former well shield warp cuts except, the structure of reuse well shield except well shield hinge ring to weld the extension steel sheet on its basis, carry out the machine tooling to the extension steel sheet after the welding is accomplished, the refabrication of shield hinge ring in the completion, and through sealing member and tail shield hinge ring sealing connection, thereby satisfy the construction demand to shield body hinge seal system, and can shorten production cycle and reduction in production cost greatly.
Description
Technical Field
The utility model relates to a shield constructs quick-witted technical field, especially indicates a well shield hinge ring refabrication structure.
Background
With the development of society and economy, the demand of people for underground space, high-speed rails and subways is increasing day by day. The shield technology is widely applied to urban subways, water conservancy and hydropower, roads, railways and the like in the urban construction process due to the characteristics of high efficiency, convenience, stable function and the like. The shield machine always needs to turn in the tunneling process, and the sealing function of the shield body is realized when the shield body turns by virtue of the shield body hinged sealing system in the turning process. The shield body hinged sealing system mainly comprises a middle shield hinged ring, a shield body hinged seal and a tail shield hinged ring which are arranged on a middle shield. Due to structural limitation, the middle shield hinged ring is usually designed to be a thin machining surface, and is easy to deform under severe construction conditions such as small turning radius construction of a shield machine and collision between the middle shield hinged ring and a hanging chain, so that a shield body hinged sealing system fails.
At present, a domestic method for solving the shield body hinged sealing system failure caused by the deformation of the middle shield hinged ring is a new middle shield, and although the method can solve the problem of the shield body hinged sealing system failure caused by the deformation of the middle shield hinged ring, the production period of the new middle shield is long and the cost is high, so that the research on a remanufacturing structure of the middle shield hinged ring is very important.
SUMMERY OF THE UTILITY MODEL
To not enough among the above-mentioned background art, the utility model provides a well shield hinge loop refabrication structure has solved among the prior art problem that shield hinge loop reconstruction cost is high.
The technical scheme of the utility model is realized like this: a remanufacturing structure of a middle shield hinge ring comprises a middle shield and an extension steel plate, wherein the hinge ring is cut off, the end face of the middle shield, which is cut off from the hinge ring, is a first welding face, the front end face of the extension steel plate is a second welding face, the first welding face is in contact with the second welding face, and the first welding face is smoothly and fixedly connected with the second welding face through welding; and a fixed support piece is fixedly arranged on the outer side between the middle shield and the extension steel plate.
The contact surface of the first welding surface and the second welding surface is superposed with the vertical plane of the fixed support piece, and the fixed support piece is welded on the middle shield and the extension steel plate along the circumferential direction.
The inner wall surface of the extension steel plate is a sealing hinge surface.
And an elastic seal is arranged between the inner wall surface of the extension steel plate and the tail shield hinge ring.
The elastic seal is a multi-peak sealing element, the front end of the tail shield hinge ring is provided with a screw seat, the screw seat is in threaded connection with an adjusting bolt, and the adjusting bolt corresponds to the elastic seal.
The utility model discloses well shield hinge ring that will former well shield warp cuts except, the structure of reuse well shield except well shield hinge ring, and weld the extension steel sheet on its basis, carry out the machine tooling to the extension steel sheet after the welding is accomplished, the refabrication of shield hinge ring in the completion, and through sealing member and tail shield hinge ring sealing connection, thereby satisfy the shield structure machine to the construction demand of shield body hinge seal system, and can shorten production cycle and reduction in production cost greatly, higher practicality and spreading value have.
Drawings
In order to illustrate the embodiments of the present invention more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and that other drawings can be obtained by those skilled in the art without inventive work.
Fig. 1 is a schematic view of the first step of the process of the present invention.
Fig. 2 is a schematic diagram of the state of the second step of the process of the present invention.
Fig. 3 is a schematic diagram of the third step of the processing of the present invention.
Fig. 4 shows the connection state of the tail shield hinge ring of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.
As shown in fig. 1, embodiment 1 is a remanufacturing structure of a middle shield hinge ring, which includes a middle shield 1 with a hinge ring cut away and an extension steel plate 2, wherein an end face of the middle shield 1 with the hinge ring cut away is a first welding face a, that is, the original middle shield hinge ring on the original middle shield 1 is cut away according to a proper area a, and after the cutting away, a section at the cutting opening is ground and cleaned, so that the first welding face is formed. The preceding terminal surface of extension steel sheet 2 is second face of weld B, is about to prolong 2 spot welding of steel sheet on original well shield structure 4 except that well shield hinge ring, and extension steel sheet 2 leaves certain machining allowance B, and later stage processing makes its new well shield hinge ring that satisfies actual demand. The first welding surface is in contact with the second welding surface, can be in line surface contact or surface contact, and the first welding surface a is in smooth fixed connection with the second welding surface b through welding, so that the fixed connection of the middle shield and the extension steel plate is realized. And a fixed support piece 3 is fixedly arranged on the outer side between the middle shield 1 and the extension steel plate 2 and used for enhancing the strength of the welding part of the middle shield and the extension steel plate.
Further, the contact surface of first face of weld and second face of weld coincides with fixed support piece 3's perpendicular plane in the middle, and fixed support piece 3 along the welding of circumference equipartition on well shield 1 and extension steel sheet 2, improve bulk strength. The inner wall surface of the extension steel plate 2 is a sealing hinge surface used for being in sealing connection with a tail shield hinge ring arranged on a tail shield 8.
The specific method comprises the following steps:
1. as shown in the attached figure 1, cutting off an original middle shield hinged ring on an original middle shield 1 according to a proper area A, and polishing and cleaning a section at a cutting opening after cutting off;
2. as shown in the attached figure 2, an extension steel plate is spot-welded on the original middle shield except for the middle shield hinge ring, and a certain machining allowance B is reserved on the extension steel plate;
3. as shown in fig. 3, a certain number of fixed supporting pieces are welded to the outer sides of the original middle shield except the middle shield hinge ring and the extended steel plate along the circumferential direction to reduce welding deformation generated when the extended steel plate is welded to the original middle shield except the middle shield hinge ring, and after the fixed supporting pieces are welded, the original middle shield except the middle shield hinge ring is welded to the extended steel plate;
4. as shown in the attached drawing 4, after the structure of the original middle shield except the middle shield hinge ring is welded with the extension steel plate, the fixed support is cut off, then the extension steel plate is machined, and after the machining size is qualified, the new middle shield hinge ring meeting the actual requirement can be obtained.
As shown in fig. 4, in embodiment 2, a remanufacturing structure of a middle shield hinge ring, an elastic seal 5 is arranged between an inner wall surface of the extension steel plate 2 and the tail shield hinge ring 4, and is used for being connected with the tail shield hinge ring in a sealing manner. Furthermore, the elastic seal 5 is a multi-peak seal, so that multi-channel sealing is realized, and the sealing property is improved. The front end of the tail shield hinged ring 4 is connected with a screw seat 6 through a bolt, the screw seat 6 is connected with an adjusting bolt 7 through a thread, the adjusting bolt 7 corresponds to the elastic sealing piece 5, the adjusting bolt is rotated in the forward direction, the adjusting bolt extrudes the elastic sealing piece, the adjustment of the wave crest height of the elastic sealing piece is increased, and the abrasion loss of the elastic sealing piece is compensated.
The other structure is the same as embodiment 1.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a well shield hinge ring refabrication structure, includes well shield (1) and extension steel sheet (2) of cutting off hinge ring, its characterized in that: the end face of the middle shield (1) cut off the hinge ring is a first welding face (a), the front end face of the extension steel plate (2) is a second welding face (b), the first welding face is in contact with the second welding face, and the first welding face (a) is smoothly and fixedly connected with the second welding face (b) through welding; and a fixed support piece (3) is fixedly arranged on the outer side between the middle shield (1) and the extension steel plate (2).
2. The remanufacturing structure of a middle shield hinge ring according to claim 1, wherein: the contact surface of the first welding surface and the second welding surface is superposed with the vertical plane of the fixed support piece (3), and the fixed support piece (3) is welded on the middle shield (1) and the extension steel plate (2) along the circumferential direction.
3. The remanufacturing structure of a middle shield hinge ring according to claim 2, wherein: the inner wall surface of the extension steel plate (2) is a sealing hinged surface.
4. The remanufacturing structure of a middle shield hinge ring according to any one of claims 1 to 3, wherein: an elastic seal (5) is arranged between the inner wall surface of the extension steel plate (2) and the tail shield hinge ring (4).
5. The remanufacturing structure of a middle shield hinge ring according to claim 4, wherein: the elastic seal (5) is a multi-peak sealing element, the front end of the tail shield hinge ring (4) is provided with a screw seat (6), the screw seat (6) is in threaded connection with an adjusting bolt (7), and the adjusting bolt (7) corresponds to the elastic seal (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020701809.8U CN212027792U (en) | 2020-04-30 | 2020-04-30 | Well shield hinge ring refabrication structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020701809.8U CN212027792U (en) | 2020-04-30 | 2020-04-30 | Well shield hinge ring refabrication structure |
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| Publication Number | Publication Date |
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| CN212027792U true CN212027792U (en) | 2020-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020701809.8U Active CN212027792U (en) | 2020-04-30 | 2020-04-30 | Well shield hinge ring refabrication structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112984115A (en) * | 2021-03-19 | 2021-06-18 | 中建八局轨道交通建设有限公司 | Hinged sealing device of shield machine |
-
2020
- 2020-04-30 CN CN202020701809.8U patent/CN212027792U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112984115A (en) * | 2021-03-19 | 2021-06-18 | 中建八局轨道交通建设有限公司 | Hinged sealing device of shield machine |
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