Shield tunneling machine thrust oil cylinder deflection angle adjusting device

Abstract

The utility model provides a shield tunneling machine thrust cylinder drift angle adjusting device which comprises a bottom plate, vertical rods are fixedly installed on the periphery of the top of the bottom plate, a top plate is fixedly installed at the upper ends of the vertical rods, and a deviation rectifying mechanism is arranged at the top of the bottom plate. The deviation rectifying mechanism comprises a servo motor, a threaded rod, a threaded sleeve, a connecting plate, a connecting rod, a limiting block, a movable block, a connecting block, a supporting block and a clamping block, through arrangement of the deviation rectifying mechanism, the accuracy and stability of the shield tunneling machine during propelling operation can be ensured, when the shield tunneling machine is propelled in a complex geology or a curve section, the direction deviation of the shield tunneling machine is limited, and the shield tunneling machine is prevented from being damaged. According to the shield tunneling machine, machine body deviation caused by non-uniform soil pressure or other external factors is avoided to a certain extent, the alignment and slope alignment requirements of a tunnel are guaranteed, the posture of the shield tunneling machine can be adjusted more accurately, the preset excavation direction can be kept more accurately, and therefore the construction efficiency and quality are improved, and the difficulty and cost of path correction under complex geological conditions are reduced.

Description

Technical Field

[0001] The utility model relates to an angle adjustment device, in particular to an angle adjustment device for a propulsion cylinder of a shield machine, belonging to the technical field of shield machines. Background Art

[0002] A shield machine is a tunnel boring machine that uses the shield method. The shield construction method is that the tunnel boring machine builds (lays) the "shield" (referring to the supporting segments) of the tunnel while excavating. It is different from the open construction method. Internationally, the broad shield machine can also be used in rock formations, but it is different from the open (non-shield method) tunnel boring machine. In my country, it is customary to call tunnel boring machines used in soft soil formations (narrow sense) shield machines, and those used in rock formations (narrow sense). Shield machines are generally divided into hand-dug shields, extrusion shields, semi-mechanical shields (local air pressure, global air pressure), mechanical shields (open-chest cutting shields, air pressure shields, slurry pressure shields, earth pressure balance shields, mixed shields, and special-shaped shields) according to their working principles.

[0003] During the tunnel excavation process of the shield machine, the thrust cylinder is responsible for providing the forward propulsion force. Due to the uncertainty of geological conditions and the need for precise control of the tunnel path, the thrust cylinder needs to adjust the propulsion direction to ensure that the tunnel is accurately excavated according to the designed trajectory. However, during the operation, the thrust cylinder of the existing shield machine may deviate due to shaking, resulting in the shield machine being unable to accurately adjust and control the excavation direction. When encountering complex geological conditions or other obstacles, the shield machine cannot correct its direction in time and is prone to deviate from the predetermined axis, resulting in inaccurate tunnel direction. Secondly, the tunnel cross-section may have an irregular shape, increasing the difficulty and construction cost of the lining structure. In addition, deviation from the designed axis may also cause the tunnel to damage surrounding buildings or underground facilities, causing safety accidents. The shield machine has no effective means of posture adjustment, and the construction efficiency will be greatly reduced. It may also need to be shut down for adjustment or maintenance, resulting in extended construction period and increased costs.

[0004] Therefore, a shield machine propulsion cylinder angle adjustment device is proposed. Utility Model Content

[0005] In view of this, the utility model provides a shield machine propulsion cylinder angle adjustment device to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial option.

[0006] The technical solution of the utility model is implemented as follows: it includes a base plate, vertical poles are fixedly installed around the top of the base plate, a top plate is fixedly installed on the upper end of the vertical pole, and a correction mechanism is arranged on the top of the base plate, and the correction mechanism includes a servo motor, a threaded rod, a threaded sleeve, a connecting plate, a connecting rod, a limit block, a movable block, a connecting block, a support block and a clamping block.

[0007] Further preferably, the servo motor is fixedly installed on the bottom of the top plate, the threaded rod is fixedly installed on the output end of the servo motor, the threaded sleeve is threadedly connected to the surface of the threaded rod, the connecting plate is fixedly connected to the four sides of the threaded sleeve surface, the number of the connecting plates is three, and the connecting rod is movably connected to the inner side of the connecting plate.

[0008] Further preferably, the limit blocks are fixedly connected to the four sides of the top plate surface, the number of the limit blocks is three, the movable block is movably connected to the inner side of the limit blocks, the support block is fixedly connected to the top of the movable block, and the clamping block is fixedly connected to the top of the support block.

[0009] Further preferably, the connecting block is fixedly connected to the outer side of the movable block, and the upper end of the connecting rod is movably connected to the inner side of the connecting block.

[0010] Further preferably, mounting bolts are threadedly connected around the surface of the base plate, and a bearing is fixedly connected to the top of the base plate and located outside the threaded rod.

[0011] Further preferably, a protective cover is threadedly connected to the bottom of the top plate, and the servo motor is located inside the protective cover.

[0012] The embodiment of the utility model has the following advantages due to the adoption of the above technical solution:

[0013] 1. The utility model can ensure the accuracy and stability of the shield machine during the advancement operation by setting up the correction mechanism. When the shield machine is advancing in complex geological conditions or curved sections, the directional deviation of the shield machine is limited, and the machine body deviation caused by non-uniform earth pressure or other external factors is avoided to a certain extent, and the alignment and slope requirements of the tunnel are guaranteed. It helps the shield machine to adjust its posture more accurately and maintain the predetermined excavation direction, thereby improving construction efficiency and quality, and reducing the difficulty and cost of correcting the path when encountering complex geological conditions.

[0014] Second, the utility model can fix the base plate by installing bolts to improve the overall stability, and can protect the servo motor by providing a protective cover to prevent external collisions that may cause malfunctions in the servo motor and affect its use.

[0015] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a front view of the main structure of the utility model;

[0018] Figure 2 This is a bottom view of the main structure of the utility model;

[0019] Figure 3 This is a structural diagram of the protective cover of the utility model in a disassembled state;

[0020] Figure 4 This is a structural diagram of the deviation-correcting mechanism of the utility model in a disassembled state.

[0021] Figure numerals: 1, bottom plate; 2, vertical pole; 3, top plate; 4, correction mechanism; 401, servo motor; 402, threaded rod; 403, threaded sleeve; 404, connecting plate; 405, connecting rod; 406, limit block; 407, movable block; 408, connecting block; 409, support block; 410, clamping block; 5, bearing; 6, protective cover; 7, mounting bolts. DETAILED DESCRIPTION

[0022] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0023] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0024] Example 1

[0025] like Figure 1-4As shown, the embodiment of the utility model provides a bottom plate 1, the top of the bottom plate 1 is fixedly installed with upright poles 2, the upper end of the upright pole 2 is fixedly installed with a top plate 3, the top of the bottom plate 1 is provided with a deviation correction mechanism 4, the deviation correction mechanism 4 includes a servo motor 401, a threaded rod 402, a threaded sleeve 403, a connecting plate 404, a connecting rod 405, a limit block 406, a movable block 407, a connecting block 408, a support block 409 and a clamping block 410, the servo motor 401 is fixedly installed at the bottom of the top plate 3, the threaded rod 402 is fixedly installed at the output end of the servo motor 401, and the threaded sleeve 403 is threadedly connected to the threaded rod 4 02, the connecting plate 404 is fixedly connected to the surface of the threaded sleeve 403 around, the number of connecting plates 404 is three, the connecting rod 405 is movably connected to the inner side of the connecting plate 404, the limit block 406 is fixedly connected to the surface of the top plate 3 around, the number of limit blocks 406 is three, the movable block 407 is movably connected to the inner side of the limit block 406, the support block 409 is fixedly connected to the top of the movable block 407, the clamping block 410 is fixedly connected to the top of the support block 409, the connecting block 408 is fixedly connected to the outer side of the movable block 407, and the upper end of the connecting rod 405 is movably connected to the inner side of the connecting block 408.

[0026] By setting up the deviation correction mechanism 4, the accuracy and stability of the shield machine during the advancement operation can be ensured. When the shield machine is advancing in complex geological or curved sections, the directional deviation of the shield machine is limited, which can avoid the machine body deviation caused by non-uniform soil pressure or other external factors to a certain extent, ensure the alignment and slope requirements of the tunnel, and help the shield machine to adjust its posture more accurately and maintain the predetermined excavation direction, thereby improving construction efficiency and quality and reducing the difficulty and cost of correcting the path when encountering complex geological conditions.

[0027] Example 2

[0028] In one embodiment, mounting bolts 7 are fixedly connected by threads around the surface of the base plate 1, a bearing 5 is fixedly connected to the top of the base plate 1 and located on the outside of the threaded rod 402, a protective cover 6 is threadedly connected to the bottom of the top plate 3, and the servo motor 401 is located on the inner side of the protective cover 6.

[0029] By installing the bolts 7, the base plate 1 can be fixed to improve the overall stability. By installing the protective cover 6, the servo motor 401 can be protected to prevent external collisions that may cause the servo motor 401 to malfunction and affect its use.

[0030] When the utility model is working: after fixing the bottom plate 1 by installing the bolts 7 and placing the propulsion cylinder on the top of the top plate 3, the servo motor 401 can be started to work. When the servo motor 401 is started, the threaded rod 402 at the output end will be driven to rotate. When the threaded rod 402 is rotating, the threaded sleeve 403 on its surface will be driven to move upward through the effect of the threaded connection. When the threaded sleeve 403 moves upward, the connecting plate 404 on its surface will be driven to move upward. When the connecting plate 404 moves upward, the connecting rod 405 will be driven to move upward. When the connecting rod 405 moves, the movable block 407 will rotate inward with the limit block 406 as the center, thereby driving the support block 409 to flip inward. When the support block 409 flips inward, it will drive the clamping block 410 to move inward to limit the propulsion cylinder, thereby adjusting the deflection angle.

[0031] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A shield machine propulsion cylinder angle adjustment device, characterized in that: The invention comprises a bottom plate (1), vertical poles (2) are fixedly mounted on all four sides of the top of the bottom plate (1), a top plate (3) is fixedly mounted on the upper ends of the vertical poles (2), a deviation correction mechanism (4) is arranged on the top of the bottom plate (1), and the deviation correction mechanism (4) comprises a servo motor (401), a threaded rod (402), a threaded sleeve (403), a connecting plate (404), a connecting rod (405), a limit block (406), a movable block (407), a connecting block (408), a supporting block (409) and a clamping block (410).

2. The shield machine propulsion cylinder angle adjustment device according to claim 1, characterized in that: The servo motor (401) is fixedly mounted on the bottom of the top plate (3); the threaded rod (402) is fixedly mounted on the output end of the servo motor (401); the threaded sleeve (403) is threadedly connected to the surface of the threaded rod (402); the connecting plate (404) is fixedly connected to the four sides of the surface of the threaded sleeve (403); the number of the connecting plates (404) is three; and the connecting rod (405) is movably connected to the inner side of the connecting plate (404).

3. The shield machine propulsion cylinder angle adjustment device according to claim 1, characterized in that: The limit blocks (406) are fixedly connected to the four sides of the surface of the top plate (3), the number of the limit blocks (406) is three, the movable block (407) is movably connected to the inner side of the limit blocks (406), the support block (409) is fixedly connected to the top of the movable block (407), and the clamping block (410) is fixedly connected to the top of the support block (409).

4. The shield machine propulsion cylinder angle adjustment device according to claim 1, characterized in that: The connecting block (408) is fixedly connected to the outer side of the movable block (407), and the upper end of the connecting rod (405) is movably connected to the inner side of the connecting block (408).

5. The shield machine propulsion cylinder angle adjustment device according to claim 1, characterized in that: The surface of the bottom plate (1) is fixedly connected to mounting bolts (7) via threads on all sides thereof, and a bearing (5) is fixedly connected to the top of the bottom plate (1) and located outside the threaded rod (402).

6. The shield machine propulsion cylinder angle adjustment device according to claim 1, characterized in that: The bottom of the top plate (3) is threadedly connected to a protective cover (6), and the servo motor (401) is located on the inner side of the protective cover (6).

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