CN220815635U - Shield machine - Google Patents
Shield machine Download PDFInfo
- Publication number
- CN220815635U CN220815635U CN202322678417.0U CN202322678417U CN220815635U CN 220815635 U CN220815635 U CN 220815635U CN 202322678417 U CN202322678417 U CN 202322678417U CN 220815635 U CN220815635 U CN 220815635U
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- Prior art keywords
- shield
- hinge
- connecting rod
- machine
- mounting hole
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- 230000005641 tunneling Effects 0.000 claims abstract description 26
- 238000009435 building construction Methods 0.000 abstract description 2
- 239000002689 soil Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model discloses a shield machine, and belongs to the field of building construction. The shield machine comprises: the middle shield and the shield tail are provided with a plurality of first hinging seats at uniform intervals along the circumferential direction at one end of the middle shield, which is close to the shield tail, and a plurality of second hinging seats are provided at uniform intervals along the circumferential direction at one end of the shield tail, wherein the first hinging seats and the second hinging seats are consistent in quantity and correspond to each other one by one; the plurality of connecting pieces are connected with the first hinging seats at one end and the corresponding second hinging seats at the other end, and are uniformly arranged at intervals along the circumferential direction; wherein, part of the connecting pieces of the plurality of connecting pieces are structured as articulated cylinders, the other part of the connecting pieces are structured as connecting rods, one end of each connecting rod is provided with a mounting hole, and a hinge pin is inserted into the mounting hole and connected with the first hinge seat or the second hinge seat, and a movable gap is formed between the mounting hole and the hinge pin in the axial direction of the shield tunneling machine. The utility model can avoid the situation that the hinged oil cylinder is pulled out when the shield machine gets rid of the trouble.
Description
Technical Field
The utility model relates to the field of building construction, in particular to a shield tunneling machine.
Background
The middle shield and the rear shield are connected through the hinged oil cylinder in the shield machine, so that the shield body can turn or correct snakelike shape, coaxiality of the shield body and the duct piece is easy to ensure, the sealing brush at the tail of the shield is damaged by eccentric load, and meanwhile, the shield body can be prevented from extruding the duct piece, so that the duct piece is damaged.
When the shield tunneling machine is solidified by the grouting body and hooped up, the articulated oil cylinder needs to be locked up at the moment, but the articulated oil cylinder is easy to be broken.
Disclosure of utility model
The utility model mainly aims to provide a shield machine, and aims to solve the technical problem that an articulated oil cylinder is easy to be pulled out when the shield machine is out of the order in the prior art.
In order to achieve the above object, the present utility model provides a shield tunneling machine, comprising:
The middle shield and the shield tail are spaced apart from each other, a plurality of first hinging seats are uniformly spaced apart from one another in the circumferential direction at one end of the middle shield, which is close to the shield tail, a plurality of second hinging seats are uniformly spaced apart from one another in the circumferential direction at one end of the shield tail, and the first hinging seats and the second hinging seats are consistent in number and correspond to one another one by one;
The plurality of connecting pieces are connected with the first hinging seats at one ends and the corresponding second hinging seats at the other ends, and are uniformly arranged at intervals along the circumferential direction;
Wherein, part of the connecting pieces of the plurality of connecting pieces are structured as articulated cylinders, the other part of the connecting pieces are structured as connecting rods, one end of each connecting rod is provided with a mounting hole, and a hinge pin is inserted into the mounting hole and connected with the first hinge seat or the second hinge seat, and a movable gap is formed between the mounting hole and the hinge pin in the axial direction of the shield tunneling machine.
In a possible embodiment of the application, the mounting hole is configured as a waist-shaped hole extending in the axial direction of the connecting rod, into which the hinge pin is inserted.
In a possible embodiment of the application, the connecting rods comprise at least 3, and at least one articulated cylinder is arranged between two adjacent connecting rods.
In a possible embodiment of the application, the links comprise 4.
In a possible embodiment of the application, 4 connecting rods are respectively arranged at the 2 o 'clock direction position, the 4 o' clock direction position, the 8 o 'clock direction position and the 10 o' clock position in the circumferential direction of the shield machine.
In a possible embodiment of the application, the connection elements are arranged horizontally along the axial direction of the shield machine.
In a possible embodiment of the present application, a mounting hole is formed at one end of the connecting rod near the shield tail, and the hinge pin is connected with the second hinge seat.
In a possible embodiment of the application, the clearance is not less than 30mm.
In a possible embodiment of the application, the connecting rod comprises a first surface and a second surface which are oppositely arranged in the radial direction of the shield machine, wherein the first surface and the second surface are plane and parallel to each other.
In one possible embodiment of the present application, the material of the connecting rod is Q345B plate.
The shield machine provided by the embodiment of the application comprises a middle shield and a shield tail, wherein a plurality of first hinging seats are uniformly arranged at intervals along the circumferential direction at one end of the middle shield, which is close to the shield tail, a plurality of second hinging seats are uniformly arranged at intervals along the circumferential direction at one end of the shield tail, and the first hinging seats and the second hinging seats are consistent in quantity and correspond to each other one by one; the plurality of connecting pieces are connected with the first hinging seats at one ends and the corresponding second hinging seats at the other ends, and are uniformly arranged at intervals along the circumferential direction; wherein, part of the connecting pieces of the plurality of connecting pieces are structured as articulated cylinders, the other part of the connecting pieces are structured as connecting rods, one end of each connecting rod is provided with a mounting hole, and a hinge pin is inserted into the mounting hole and connected with the first hinge seat or the second hinge seat, and a movable gap is formed between the mounting hole and the hinge pin in the axial direction of the shield tunneling machine.
Compared with the prior shield machine in which the middle shield and the rear shield are connected through the hinge cylinders arranged in the circumferential direction, the shield machine provided by the application has the advantages that part of the hinge cylinders are replaced by the connecting rods, and the structural rigidity of the connecting rods is better than that of the hinge cylinders, so that the situation that the hinge cylinders are pulled out when the shield machine is out of order is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an embodiment of a shield tunneling machine according to the present utility model;
FIG. 2 is a schematic diagram of the connection of the connecting rod of the present utility model;
FIG. 3 is a schematic view of a connecting rod according to the present utility model;
FIG. 4 is a schematic distribution diagram of a connecting rod according to the present utility model.
Reference numerals illustrate:
| Reference numerals | Name of the name | Reference numerals | Name of the name |
| 10 | Middle shield | 11 | First hinge seat |
| 21 | Articulated cylinder | 22 | Connecting rod |
| 221 | Connecting hole | 222 | Mounting hole |
| 223 | Hinge pin | 30 | Shield tail |
| 31 | Second hinge seat |
The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
The embodiment provides a shield tunneling machine.
The shield machine comprises: a mid shield 10, a shield tail 30 and a plurality of connectors.
In the related art, the shield body of the shield machine mainly comprises a front shield, a middle shield 10 and a shield tail 30, wherein the three parts are tubular simple bodies, and the outer diameters of the three parts are basically consistent. The front shield and the pressure-bearing partition plates welded together with the front shield are used for supporting the cutterhead for driving, meanwhile, the soil bin is isolated from the rear working space, and the pressure of the thrust oil cylinder can act on the excavation surface through the pressure-bearing partition plates so as to play a role in supporting and stabilizing the excavation surface. Five soil pressure sensors are arranged on the pressure-bearing partition plate at different heights and can be used for detecting the soil pressure at different heights in the soil bin. The rear side of the front shield is provided with a middle shield 10, the middle shield 10 and the front shield are connected through a flange and bolts, 30 pushing cylinders are arranged at the periphery of the inner side of the shield tail 30, plastic supporting shoes are arranged on pushing cylinder rods, the supporting shoes are pushed against the segments which are arranged at the rear, forward tunneling force of the shield tunneling machine can be provided by controlling the cylinder rods to extend backwards, the 30 jacks are divided into A, B, c, D groups according to the upper, lower, left and right directions, the pressure of each group of cylinders can be independently controlled in an operating room in the tunneling process, and thus the shield tunneling machine can realize left turning, right turning, head lifting, head lowering or straight running, and the axis of the tunneling shield tail 30 structure machine can be fitted with the tunnel design axis as much as possible. The rear of the middle shield 10 is provided with a shield tail 30, and the shield tail 30 is connected with the middle shield 10 through at least 14 passively following articulated cylinders 21. The hinged connection can facilitate steering of the shield machine.
The rear end face of the middle shield 10, that is, one end close to the shield tail 30 is provided with a plurality of first hinging seats 11 at uniform intervals along the circumferential direction of the shield body, and the front end face of the shield tail 30, that is, one end close to the middle shield 10 is provided with a plurality of second hinging seats 31 at uniform intervals along the circumferential direction. The plurality of first hinge seats 11 and the plurality of second hinge seats 31 are identical in number and correspond to each other one by one. So that one end of the hinge cylinder 21 is connected with the first hinge seat 11 to hinge with the middle shield 10, and the other end of the hinge cylinder 21 is connected with the second hinge seat 31 to hinge with the shield tail 30.
In the present embodiment, the middle shield 10 and the shield tail 30 are connected by a plurality of connectors, part of which is configured as the articulated cylinder 21, and the other part of which is configured as the link 22. That is, in the present embodiment, a part of the plurality of articulated cylinders 21 between the center shield 10 and the shield tail 30 is replaced with the connecting rod 22.
The connecting rod 22 is a single component, one end of the connecting rod 22 is provided with a connecting hole 221, a hinge pin 223 is inserted into the connecting hole 221, and the hinge pin 223 is also inserted into the first hinge seat 11, so that one end of the connecting rod 22 is hinged with the middle shield 10. The other end of the connecting rod 22 is provided with a mounting hole 222, a hinge pin 223 is inserted into the mounting hole 222, and the hinge pin 223 is inserted into the second hinge seat 31 at the moment, so that the connecting rod 22 is hinged with the shield tail 30, namely, the connection form of the connecting rod 22 and the shield tail 30 as well as the middle shield 10 is consistent with the connection form of the hinge oil cylinder 21 and the shield tail 30 as well as the middle shield 10.
In addition, during the operation of the shield tunneling machine, the articulated cylinder 21 stretches out and draws back, so in this embodiment, a clearance is provided between the mounting hole 222 and the hinge pin 223 in the axial direction of the shield tunneling machine, that is, a corresponding clearance exists between the hole wall of the mounting hole 222 and the outer peripheral wall of the hinge pin 223, so that the connecting rod 22 and the hinge pin 223 can relatively move in the axial direction of the shield tunneling machine, so as to adjust the distance between the middle shield 10 and the shield tail 30 at the connecting rod 22.
Of course, the mounting hole 222 may also be disposed at an end of the connecting rod 22 near the middle shield 10, which is not limited by the comparison of the present embodiment.
It can be understood that, according to the application, part of the articulated cylinder 21 is replaced by the connecting rod 22, and because the connecting rod 22 is a single part, compared with the traditional shield machine in which the middle shield 10 and the rear shield are connected through the articulated cylinder 21 arranged in the circumferential direction, the connecting rod 22 has better structural rigidity compared with the articulated cylinder 21, so that the situation that the articulated cylinder 21 is pulled out when the shield machine is out of order is avoided.
Wherein, the aperture of the mounting hole 222 may also be larger than the outer diameter of the hinge pin 223, so that the connecting rod 22 and the hinge pin 223 may relatively move in the axial direction of the shield machine. Alternatively, in a possible embodiment of the present application, the mounting hole 222 is configured as a waist-shaped hole extending in the axial direction of the link 22, with the hinge pin 223 inserted therein.
At this time, the hinge pin 223 may move back and forth along the axial direction of the link 22 in the waist-shaped hole, so that the distance between the first hinge mount 11 and the second hinge mount 31, that is, the distance between the shield 10 and the shield tail 30 in this case, may be adjusted.
In a possible embodiment of the present application, the links 22 include at least 3 links, and at least one hinge cylinder 21 is provided between two adjacent links 22.
Specifically, because the angle of the turning is not determined during actual operation of the shield tunneling machine, the position of the hinge cylinder 21 that may be broken is not fixed, at this time, the connecting rods 22 include at least 3, and at least 3 connecting rods 22 are uniformly spaced along the circumferential direction, so that no matter which angle is turned, a corresponding connecting rod 22 is stressed, so as to assist the hinge cylinder 21 to bear the force, and avoid the hinge cylinder 21 from being broken or pulled out.
In one example, the links 22 include 4. The 4 links 22 are disposed at intervals from each other. Since the shield machine typically turns left or right, the 4 links 22 may be arranged at 2 o 'clock, 4 o' clock, 8 o 'clock and 10 o' clock positions, respectively, in the circumferential direction of the shield machine.
In a possible embodiment of the application, the connection elements are arranged horizontally in the axial direction of the shield machine, i.e. the stress of the connecting rod 22 is optimized such that the forces are transmitted as far as possible in the axial direction of the connecting rod 22.
In a possible embodiment of the application, the clearance is not less than 30mm. As in one example, the outer diameter of the hinge pin 223 is 50mm, so that the aperture of the connection hole 221 of the link 22 is 50mm, and the mounting hole 222 is a waist-shaped hole, the inner diameter of the hole wall of which is also 50mm, and the distance between the centers of the two semicircular hole walls is 30mm, so that the movable stroke of the hinge pin 223 within the mounting hole 222 is 30mm.
In a possible embodiment of the present application, the connecting rod 22 includes a first surface and a second surface that are disposed opposite to each other in the radial direction of the shield machine, and the first surface and the second surface are both planar and parallel to each other.
Specifically, in the present embodiment, since the link 22 is mainly subjected to the tensile force, it is necessary to increase the cross-sectional area of the link 22, and for this reason, the first face and the second face of the link 22 are both planar and parallel to each other. So that the link 22 is configured as a rectangular link 22.
In one possible embodiment of the present application, the material of the connecting rod 22 is Q345B plate.
For a better understanding of the scope of the present claims. The following description is made by way of specific examples in specific application scenarios, and it is to be understood that the following examples are only for explaining the present application and are not intended to limit the scope of the claims.
In one example, the shield tunneling machine articulated cylinder 21 employs a cylinder with a gauge of 200/100-150. The yield strength of the Q345B plate is 345Mpa, the tensile strength is 470-630Mpa, and the maximum thrust of the shield machine propulsion system is 81895KN approximately equal to 8348.1T.
According to the formula: steel sheet thickness = tensile/tensile strength/length; or steel sheet thickness = tensile/tensile strength/width.
Obtainable Q345B sheet thickness = 8348.1 x 103kg/630Mpa/2000mm = 6.6cm
The link 22 uses a Q345B plate of 8cm in thickness as the primary material, 1770mm long and 200mm wide, as shown in FIG. 3.
The connecting rod 22 is used for replacing the 2-point position, 4-point position, 8-point position and 10-point position of the hinge oil cylinder 21 of the shield machine, the hole of the R50 is provided with a hinge pin 223 (the specification is round steel 100/45#) on the original hinge oil cylinder 21, a movable gap of 30mm is reserved in the waist-shaped hole of the connecting rod 22, and the problems that the shield machine is difficult to adjust in a curve and the hinge oil cylinder 21 is easy to pull out are solved.
The foregoing description is only of the optional embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all the equivalent structural changes made by the description of the present utility model and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the utility model.
Claims (10)
1. A shield tunneling machine, comprising:
The device comprises a middle shield and a shield tail, wherein a plurality of first hinging seats are uniformly arranged at intervals along the circumferential direction at one end of the middle shield, which is close to the shield tail, a plurality of second hinging seats are uniformly arranged at intervals along the circumferential direction at one end of the shield tail, and the first hinging seats and the second hinging seats are consistent in number and correspond to each other one by one; and
The plurality of connecting pieces are connected with the first hinging seats at one ends and the corresponding second hinging seats at the other ends, and are uniformly arranged at intervals along the circumferential direction;
The shield tunneling machine comprises a shield tunneling machine body, a plurality of connecting pieces, a plurality of first hinge seats or second hinge seats, a plurality of connecting pieces and a plurality of shield tunneling machine body, wherein the connecting pieces are respectively provided with a hinge oil cylinder, the connecting pieces are respectively provided with a connecting rod, one end of each connecting rod is provided with a mounting hole, a hinge pin is inserted into each mounting hole, the hinge pin is connected with the first hinge seat or the second hinge seat, and a movable gap is reserved between each mounting hole and each hinge pin in the axial direction of the shield tunneling machine body.
2. The shield machine of claim 1, wherein the mounting hole is configured as a kidney-shaped hole extending in an axial direction of the connecting rod, the kidney-shaped hole having the hinge pin inserted therein.
3. The shield tunneling machine according to claim 1, wherein said links comprise at least 3, and at least one of said articulated cylinders is disposed between two adjacent links.
4. A shield machine according to claim 3, wherein the links comprise 4 links.
5. The shield machine according to claim 4, wherein 4 links are arranged at 2 o 'clock, 4 o' clock, 8 o 'clock and 10 o' clock positions, respectively, in the circumferential direction of the shield machine.
6. The shield machine of claim 1, wherein the connection is horizontally disposed along an axial direction of the shield machine.
7. The shield tunneling machine according to claim 1, wherein the mounting hole is formed in an end of the connecting rod, which is close to the shield tail, and the hinge pin is connected with the second hinge seat.
8. The shield machine of claim 1, wherein the clearance gap is not less than 30mm.
9. The shield machine of claim 1, wherein the connecting rod includes a first face and a second face disposed opposite each other in a radial direction of the shield machine, the first face and the second face each being planar and parallel to each other.
10. The shield tunneling machine according to any one of claims 1-9, wherein the connecting rod is made of Q345B board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322678417.0U CN220815635U (en) | 2023-10-07 | 2023-10-07 | Shield machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322678417.0U CN220815635U (en) | 2023-10-07 | 2023-10-07 | Shield machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220815635U true CN220815635U (en) | 2024-04-19 |
Family
ID=90674155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322678417.0U Active CN220815635U (en) | 2023-10-07 | 2023-10-07 | Shield machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220815635U (en) |
-
2023
- 2023-10-07 CN CN202322678417.0U patent/CN220815635U/en active Active
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