Arc-shaped workpiece radian adjusting device

Abstract

The utility model belongs to the technical field of shield tunneling machine production, and particularly relates to an arc-shaped workpiece radian adjusting device which is arranged on a ground steel plate and comprises a limiting assembly and an adjusting piece, the limiting assembly comprises a first limiting piece and a second limiting piece, and the first limiting piece comprises a plurality of limiting blocks which define a circle. The second limiting piece comprises a plurality of limiting plates which define a circle, and the lower end of the arc-shaped workpiece is located between the first limiting piece and the second limiting piece; the adjusting piece comprises first connecting rods, connecting pieces and second connecting rods, the multiple first connecting rods are fixed to the ground steel plate, the multiple second connecting rods are fixed to the inner side and the outer side of the arc-shaped workpiece, and the connecting pieces are arranged between the first connecting rods and the second connecting rods and used for achieving axial movement of the second connecting rods. The lower ends of the arc-shaped workpieces are limited through the first limiting pieces and the second limiting pieces, the radian of the arc-shaped workpieces is adjusted through the adjusting pieces, it is guaranteed that the side portions between every two adjacent arc-shaped workpieces are aligned, and it is guaranteed that installation of the structure on the shield body and the roundness of the shield body are qualified.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of shield machine production, and particularly relates to an arc workpiece radian adjusting device. BACKGROUND

[0002] The shield body is a key structural part used in shield machine tunnel construction, mainly serving to support and protect the tunnel wall and also providing the construction environment and space. The outermost layer of the shield body is a circumferential shell made of arc workpieces (steel plates rolled into arc-shaped plate bodies). Due to the reasons such as steel plate rolling and transportation deformation, the arc workpieces are deformed. During the installation of structures or components on the arc workpieces (such as the installation of front and rear bulkheads, center rings, connecting plates, etc.) and the overall assembly and welding, the side parts of adjacent two arc workpieces cannot be aligned, i.e., the circularity of the annular plate body surrounded by multiple arc workpieces has local unqualified problems. SUMMARY

[0003] The utility model discloses to solve the multiple arc workpieces that constitute the shield body of the existing shield machine enclose when assembling, the side part of adjacent two arc workpieces cannot be aligned, i.e., the circularity of the annular plate body surrounded by multiple arc workpieces has local unqualified problems, provide an arc workpiece radian adjusting device, through the first limit piece and the second limit piece are positioned to the lower end of arc workpiece, through the adjusting piece adjustment arc workpiece radian guarantee the alignment between the side part of adjacent two arc workpieces, guarantee the installation of structure on the shield body and the circularity of the shield body is qualified.

[0004] In order to realize the above-mentioned purpose, the technical scheme of the utility model is:

[0005] An arc workpiece radian adjusting device is arranged on a ground steel plate, comprising a limiting assembly and an adjusting piece. The limiting assembly comprises a first limiting piece and a second limiting piece. The first limiting piece comprises a plurality of limiting blocks, which form a circle. The second limiting piece comprises a plurality of limiting plates, which form a circle. The lower end of the arc workpiece is located between the first limiting piece and the second limiting piece, and the lower end of the arc workpiece is limited by the first limiting piece and the second limiting piece.

[0006] The adjusting piece comprises a first connecting rod, a connecting piece, and a second connecting rod. A plurality of first connecting rods are fixedly arranged on the ground steel plate. A plurality of second connecting rods are fixedly arranged on the inner and outer sides of each arc workpiece. The plurality of second connecting rods on the inner side of the arc workpiece are arranged in a staggered manner with the plurality of second connecting rods on the outer side of the arc workpiece. The connecting piece is arranged between the corresponding first connecting rod and second connecting rod to realize the axial movement of the corresponding second connecting rod, and the arc workpiece is locally adjusted by the axial movement of the second connecting rod.

[0007] Preferably, the connecting piece is a middle-through six-prism structure, the lower end of the connecting piece is threadedly sleeved on the first connecting rod, the upper end of the connecting piece is threadedly sleeved on the second connecting rod, the threads of the upper end of the first connecting rod and the lower end of the second connecting rod are opposite in screw direction, and the second connecting rod is axially moved by rotating the connecting piece.

[0008] Preferably, the middle of the connecting piece is fixedly provided with a baffle.

[0009] Preferably, the connecting piece comprises a cylinder body and first and second nuts fixedly connected at both ends of the cylinder body, the first nut is threadedly sleeved on the upper end of the first connecting rod, the second nut is threadedly sleeved on the lower end of the second connecting rod, the threads of the upper end of the first connecting rod and the lower end of the second connecting rod are opposite in screw direction, and the axial movement of the second connecting rod is driven by rotating the cylinder body to drive the first and second nuts to rotate.

[0010] Preferably, the outer side of the limiting block is an arc surface and is matched with the inner side of the arc-shaped workpiece, and the inner side of the limiting plate is an arc surface and is matched with the outer side of the arc-shaped workpiece, so that the limiting effect on the lower end of the arc-shaped workpiece is ensured.

[0011] Preferably, a plurality of limiting blocks are correspondingly arranged on the inner side of each limiting plate, and the arc length of the arc-shaped workpiece is greater than the arc length of the limiting plate.

[0012] Preferably, the lower end of the first connecting rod is welded and fixed with the ground steel plate, and the upper end of the second connecting rod is welded and fixed with the arc-shaped workpiece.

[0013] Preferably, the plurality of limiting blocks are welded and fixed with the ground steel plate, and the plurality of limiting plates are welded and fixed with the ground steel plate.

[0014] Through the above technical scheme, the utility model has the advantages that:

[0015] 1. The first limiting piece composed of a plurality of limiting blocks limits the inner side of the lower end of the arc-shaped workpiece, the second limiting piece composed of a plurality of limiting plates limits the outer side of the lower end of the arc-shaped workpiece, the limiting of the arc-shaped workpiece is effectively ensured, and the arc-shaped workpiece is ensured to be in a vertical state.

[0016] 2. On the basis of limiting and fixing the lower end of the arc-shaped workpiece, the connecting piece is rotated, the second connecting rod is close to or away from the first connecting rod, the connecting position of the second connecting rod and the arc-shaped workpiece is pulled or pushed, the arc-shaped workpiece is locally deformed, the arc-shaped workpiece is adjusted, the arc radian of the arc-shaped workpiece is ensured, the alignment between a plurality of arc-shaped workpieces is ensured, welding alignment during subsequent shield body processing is facilitated, and the position during installation of corresponding components (such as front partition plates, rear partition plates, center rings, connecting plates and the like) of the shield body of the shield tunneling machine on the arc-shaped workpiece is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is the structural schematic view of the utility model.

[0018] Fig. 2 It is the structural schematic view of the utility model adjusting part.

[0019] The figure mark is: 1 is ground steel plate, 2 is limiting block, 3 is limiting plate, 4 is arc-shaped workpiece, 5 is first connecting rod, 6 is connecting piece, 7 is second connecting rod. DETAILED DESCRIPTION

[0020] The utility model will be further explained in connection with the attached drawing and specific embodiment:

[0021] As Figs. 1-2 The utility model discloses an arc-shaped workpiece radian adjusting device, sets up on ground steel plate 1, including limiting assembly and adjusting part, the limiting assembly includes first limiting piece and second limiting piece, and the lower end of arc-shaped workpiece 4 is located between first limiting piece and second limiting piece, and multiple arc-shaped workpieces 4 are arranged between first limiting piece and second limiting piece and constitute the shield machine shield body shell part of surrounding circle, and the inside and outside of the lower end of arc-shaped workpiece 4 is positioned by first limiting piece and second limiting piece.

[0022] The first limiting piece includes multiple limiting blocks 2, and the multiple limiting blocks 2 surround a circle, and the outer side of the limiting block 2 is an arc surface and is attached to the inner side of the arc-shaped workpiece 4, for limiting the inside of the lower end of the arc-shaped workpiece 4.

[0023] The second limiting piece includes multiple limiting plates 3, and the multiple limiting plates 3 surround a circle, and the inner side of the limiting plate 3 is an arc surface and is attached to the outer side of the arc-shaped workpiece 4, for limiting the outside of the lower end of the arc-shaped workpiece 4.

[0024] Multiple limiting plates 3 are arranged around multiple limiting blocks 2.

[0025] Multiple limiting blocks 2 are welded and fixed with ground steel plate 1, and multiple limiting plates 3 are welded and fixed with ground steel plate 1, multiple limiting blocks 2 are arranged in the inner side of each limiting plate 3 correspondingly, and the arc surface length of the arc-shaped workpiece 4 is greater than the arc surface length of the limiting plate 3, that is, the lower end of each arc-shaped workpiece 4 corresponds to multiple limiting plates 3 and multiple limiting blocks 2 simultaneously, to ensure the limiting effect of each arc-shaped workpiece 4.

[0026] The adjusting member comprises a first connecting rod 5, a connecting piece 6 and a second connecting rod 7, a plurality of first connecting rods 5 are fixedly arranged on the ground steel plate 1, a plurality of second connecting rods 7 are fixedly arranged on the inner and outer sides of each arc-shaped workpiece 4, the plurality of second connecting rods 7 on the inner side of the arc-shaped workpiece 4 are arranged in a staggered manner with the plurality of second connecting rods 7 on the outer side of the arc-shaped workpiece 4, the connecting piece 6 is arranged between the corresponding first connecting rod 5 and the second connecting rod 7, and the connecting piece 6 is used to realize the axial movement of the corresponding second connecting rod 7, so that the second connecting rod 7 is close to or away from the first connecting rod 5 through the connecting piece 6 under the condition that the lower end of the arc-shaped workpiece 4 is limited by the first limiting piece and the second limiting piece, and then the upper end of the second connecting rod 7 drives the arc-shaped workpiece 4 and the connecting position of the second connecting rod 7 to locally deform, so as to adjust the arc of the arc-shaped workpiece 4.

[0027] The connecting piece 6 is a six-prism structure penetrating the middle part, a baffle is fixedly arranged in the middle part of the connecting piece 6, the baffle is located between the first connecting rod 5 and the second connecting rod 7, the lower end of the connecting piece 6 is threadedly sleeved on the first connecting rod 5, the upper end of the connecting piece 6 is threadedly sleeved on the second connecting rod 7, the threads of the upper end of the first connecting rod 5 and the lower end of the second connecting rod 7 are opposite in screw direction, the first connecting rod 5 is driven to move axially by rotating the connecting piece 6, the local arc adjustment of the arc-shaped workpiece 4 is realized, and the six-edge structure on the outer side of the connecting piece 6 facilitates the clamping of the connecting piece 6 by tools such as spanners for driving rotation.

[0028] The connecting piece 6 comprises a cylinder body and first and second nuts fixedly connected at both ends of the cylinder body, the first nut is threadedly sleeved on the upper end of the first connecting rod 5, the second nut is threadedly sleeved on the lower end of the second connecting rod 7, the threads of the upper end of the first connecting rod 5 and the lower end of the second connecting rod 7 are opposite in screw direction, the first nut or the second nut is rotated to realize the overall rotation of the connecting piece 6, the first connecting rod 5 is driven to move axially, and the local arc adjustment of the arc-shaped workpiece 4 is realized.

[0029] The lower end of the first connecting rod 5 is welded and fixed with the ground steel plate 1, and the upper end of the second connecting rod 7 is welded and fixed with the arc-shaped workpiece 4, so as to ensure the connecting and fixing effect of the adjusting member and the arc-shaped workpiece 4 and the fixing of the adjusting member itself.

[0030] In use, when it is necessary to install corresponding structures or components (such as front partitions, rear partitions, center rings, connecting plates, etc.) on the surface of the arc-shaped workpiece 4 constituting the shield body of the shield tunneling machine, or when it is necessary to weld a plurality of arc-shaped workpieces 4 to form a circular shield body, first, the lower ends of the plurality of arc-shaped workpieces 4 are positioned between the first limiting piece and the second limiting piece, and the lower ends of the plurality of arc-shaped workpieces 4 are limited.

[0031] Subsequently, a plurality of adjusting members are installed, the lower ends of the plurality of adjusting members are welded on the ground steel plate 1, and the upper ends are welded on the arc-shaped workpieces 4, the plurality of adjusting members ensure the fixation of the overall position when the arc-shaped workpieces 4 are locally adjusted and deformed, subsequently, the corresponding connecting members 6 are rotated (the welding position of the corresponding second connecting rods 7 and the corresponding arc-shaped workpieces 4 is the deformed position of the arc-shaped workpieces 4, that is, the arc of the position makes the roundness of the shield structure surrounded by the plurality of arc-shaped workpieces 4 irregular), the connecting members 6 are rotated to drive the corresponding second connecting rods 7 to move axially, and then the deformed position of the corresponding arc-shaped workpieces 4 is reset to ensure that the overall arc of the arc-shaped workpieces 4 is consistent.

[0032] The above-described embodiments are only preferred embodiments of the present application, and are not intended to limit the scope of the present application. Any equivalent changes or modifications made in accordance with the structure, features and principles described in the patent range of the present application should be included in the patent range of the present application.

Claims

1. A device for adjusting the curvature of an arc-shaped workpiece, mounted on a ground steel plate (1), characterized in that, It includes a limiting component and an adjusting component. The limiting component includes a first limiting component and a second limiting component. The first limiting component includes multiple limiting blocks (2) arranged in a circle. The second limiting component includes multiple limiting plates (3) arranged in a circle. The lower end of the arc-shaped workpiece (4) is located between the first limiting component and the second limiting component. The adjusting component includes a first connecting rod (5), a connecting piece (6), and a second connecting rod (7). Multiple first connecting rods (5) are fixedly installed on the ground steel plate (1). Multiple second connecting rods (7) are fixedly installed on the inner and outer sides of each arc-shaped workpiece (4). Multiple second connecting rods (7) located on the inner side of the arc-shaped workpiece (4) are staggered with multiple second connecting rods (7) located on the outer side of the arc-shaped workpiece (4). A connecting piece (6) is provided between the corresponding first connecting rod (5) and the second connecting rod (7) to realize the axial movement of the corresponding second connecting rod (7).

2. The arc adjustment device for an arc-shaped workpiece according to claim 1, characterized in that, The connector (6) is a hexagonal prism structure with a through-center. The lower end of the connector (6) is threaded onto the first connecting rod (5), and the upper end of the connector (6) is threaded onto the second connecting rod (7). The threads at the upper end of the first connecting rod (5) and the lower end of the second connecting rod (7) are opposite in direction.

3. The arc adjustment device for an arc-shaped workpiece according to claim 2, characterized in that, A baffle is fixedly installed in the middle of the connector (6).

4. The arc adjustment device for an arc-shaped workpiece according to claim 1, characterized in that, The connector (6) includes a cylinder and a first nut and a second nut fixedly connected to both ends of the cylinder. The first nut is threaded onto the upper end of the first connecting rod (5), and the second nut is threaded onto the lower end of the second connecting rod (7). The threads of the upper end of the first connecting rod (5) and the lower end of the second connecting rod (7) are opposite in direction.

5. The arc adjustment device for an arc-shaped workpiece according to claim 1, characterized in that, The outer side of the limiting block (2) is an arc-shaped surface and fits against the inner side of the arc-shaped workpiece (4), and the inner side of the limiting plate (3) is an arc-shaped surface and fits against the outer side of the arc-shaped workpiece (4).

6. The arc adjustment device for an arc-shaped workpiece according to claim 5, characterized in that, Multiple limiting blocks (2) are provided on the inner side of each limiting plate (3), and the arc length of the arc surface of the arc workpiece (4) is greater than the arc length of the limiting plate (3).

7. The arc adjustment device for an arc-shaped workpiece according to claim 1, characterized in that, The lower end of the first connecting rod (5) is welded and fixed to the ground steel plate (1), and the upper end of the second connecting rod (7) is welded and fixed to the arc-shaped workpiece (4).

8. The arc adjustment device for an arc-shaped workpiece according to claim 1, characterized in that, The multiple limiting blocks (2) are welded and fixed to the ground steel plate (1), and the multiple limiting plates (3) are welded and fixed to the ground steel plate (1).

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