Adjustable shield machine launching frame device

Abstract

The utility model discloses a kind of adjustable shield machine starting frame devices, adjustable shield machine starting frame device includes mounting seat, base and connecting rod mechanism, the top of mounting seat has installation surface to fix TBM main machine, base is used to be detachably connected with ground, connecting rod mechanism is between mounting seat and base, connecting rod mechanism includes first connecting rod, second connecting rod and hydraulic rod, the first end of first connecting rod and the first end of second connecting rod are pivotally connected by pivot, pivot is connected with mounting seat, the second end of first connecting rod and the second end of second connecting rod are pivotally connected with a base respectively, the first end of hydraulic rod and the middle part of first connecting rod are pivotally connected to drive first connecting rod relative mounting seat rotation, the second end of hydraulic rod and mounting seat are pivotally connected. The adjustable shield machine starting frame device provided by the utility model has the advantages of adapting to environmental requirements, inclination and convenient height adjustment of main machine.

Description

Technical Field

[0001] This utility model relates to the field of tunnel boring machine (TBM) construction technology, and in particular to an adjustable TBM launching frame device. Background Technology

[0002] TBM (Tunnel Boring Machine) is an advanced tunnel excavation equipment characterized by high integration, high automation, and high adaptability to geological conditions. It is widely used in the excavation of underground tunnels in mountains and cities. Before TBM excavation, sufficient assembly and launching sites are required. The assembly site and launching tunnel need to be determined based on the length of the TBM main unit and the length of the supporting equipment. Generally, a foundation pit needs to be excavated and support structures erected before TBM launching, and the TBM's attitude and inclination angle need to be adjusted according to the construction design plan. However, in actual work, due to environmental limitations, there are many uncertainties at the launching point, which have been troubling technical workers. These are mainly manifested in the following ways: when the excavation point is low-lying and the surface is relatively flat and open, the construction of the foundation pit is severely affected by water accumulation; in gravel and sand layers, base heave and water and sand inrush are prone to occur, causing instability of the retaining structure, resulting in low excavation efficiency, high cost, and long construction period; the on-site environmental conditions are complex and changeable, and existing launching supports cannot meet the changing actual needs. Utility Model Content

[0003] This utility model aims to at least partially solve one of the technical problems in related technologies. To this end, embodiments of this utility model propose an adjustable shield tunneling machine launching frame device, which has the advantages of adapting to environmental requirements and convenient adjustment of the inclination angle and main machine height.

[0004] According to an embodiment of the present invention, the adjustable shield tunneling machine launching frame device includes a mounting base, a base, and a linkage mechanism. The top of the mounting base has a mounting surface for fixing the TBM main unit. The base is detachably connected to the ground. The linkage mechanism is located between the mounting base and the base. The linkage mechanism includes a first link, a second link, and a hydraulic rod. The first end of the first link and the first end of the second link are pivotally connected via a pivot shaft, which is connected to the mounting base. The second ends of the first link and the second link are respectively pivotally connected to one of the bases. The first end of the hydraulic rod is pivotally connected to the middle of the first link to drive the first link to rotate relative to the mounting base. The second end of the hydraulic rod is pivotally connected to the mounting base.

[0005] The adjustable shield tunneling machine launching frame device according to the embodiments of this utility model has the advantages of adapting to environmental requirements and convenient adjustment of inclination angle and main machine height.

[0006] In some embodiments, a guide rail is provided on the mounting surface, and the TBM host is slidably connected to the guide rail.

[0007] In some embodiments, a guide groove is provided on the mounting surface, the extension direction of the guide groove is perpendicular to the extension direction of the guide rail, and the guide rail slides along the guide groove to adjust the width between the guide rails.

[0008] In some embodiments, the adjustable tunnel boring machine launching frame device further includes a locking element arranged on the guide rail to fix the guide rail to the guide groove.

[0009] In some embodiments, the distance between the base and the other base is negatively correlated with the height of the TBM host.

[0010] In some embodiments, the adjustable shield machine launching frame device further includes a spacing adjustment mechanism, which includes a telescopic strut or an adjustable screw. The two ends of the telescopic strut are connected to the two bases, or the two ends of the adjustable screw are connected to the two bases to adjust the distance between the bases.

[0011] In some embodiments, the telescopic strut includes an inner strut and an outer strut. One end of the inner strut slides within the outer strut. A locking element is provided on the outer strut to lock the inner strut. The ends of the inner strut and the outer strut that are far apart are respectively connected to a base to adjust the distance between the bases.

[0012] In some embodiments, the adjustable screw includes a screw body and two adjusting nuts. The screw body is provided with external threads, and the adjusting nuts are threadedly connected to the screw body and connected to the base. Rotating the screw body is used to adjust the distance between the bases.

[0013] In some embodiments, the adjustable shield machine launching frame device further includes a safety mechanism, which includes an inclination sensor and a pressure sensor. The inclination sensor is arranged on the mounting base and the first or second connecting rod to detect the angle between the mounting base and the first or second connecting rod, and the pressure sensor is arranged on the hydraulic rod to detect the pressure of the hydraulic rod.

[0014] In some embodiments, the adjustable tunnel boring machine launching frame device further includes a lifting mechanism, which includes a telescopic rod, a crossbeam, and a crane. The two ends of the crossbeam are respectively connected to one of the telescopic rods to form a portal frame. The crane is arranged on the crossbeam to lift the TBM main unit. Attached Figure Description

[0015] Figure 1This is a structural schematic diagram of the adjustable shield tunneling machine launching frame device according to an embodiment of the present utility model.

[0016] Reference numerals: 1. TBM main unit; 2. Mounting base; 3. Hydraulic rod; 4. Base; 5. First connecting rod; 6. Second connecting rod. Detailed Implementation

[0017] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0018] According to an embodiment of the present invention, the adjustable shield tunneling machine launching frame device includes a mounting base 2, a base 4, and a linkage mechanism. The top of the mounting base 2 has a mounting surface for fixing the TBM main unit 1. The base 4 is detachably connected to the ground. The linkage mechanism is located between the mounting base 2 and the base 4. The linkage mechanism includes a first link 5, a second link, and a hydraulic rod 3. The first end of the first link 5 and the first end of the second link are pivotally connected through a pivot shaft, which is connected to the mounting base 2. The second ends of the first link 5 and the second link are pivotally connected to a base 4, respectively. The first end of the hydraulic rod 3 is pivotally connected to the middle of the first link 5 to drive the first link 5 to rotate relative to the mounting base 2. The second end of the hydraulic rod 3 is pivotally connected to the mounting base 2. The mounting surface of mounting base 2 provides a stable fixed position for the TBM main unit, ensuring its stability during operation. Base 4 connects to the ground to support and fix the overall frame, reducing reliance on a pit. Base 4 is detachably connected to the ground for easy movement. A linkage mechanism is arranged between mounting base 2 and base 4, serving as a connection and power transmission mechanism. This mechanism adjusts the height and tilt angle of mounting base 2, ensuring the alignment and slope of the TBM main unit 1 meet design requirements, thus enabling pitless launch and effectively shortening the construction period and saving costs. The first link 5 and the second link of the linkage mechanism work together to support mounting base 2. Hydraulic rod 3 pushes the first link 5 to rotate, changing the angle between mounting base 2 and the ground, thereby adjusting the TBM main unit 1 on mounting base 2. Hydraulic rod 3 serves as the power source to change the overall tilt angle.

[0019] In some embodiments, a guide rail is provided on the mounting surface. Figure 1 (Not shown), the TBM host 1 is slidably connected to the guide rail.

[0020] Specifically, the guide rails facilitate the movement of the TBM main unit 1 relative to the mounting surface, allowing for adjustment of its position according to actual construction needs and facilitating subsequent movement of the TBM main unit 1 on the mounting base 2. The guide rails can be fixed to the mounting surface via welding or bolting, ensuring their robustness and stability. The installation position and orientation of the guide rails are precisely designed based on the dimensions and sliding requirements of the TBM main unit 1. During the assembly of the TBM main unit 1, the guide rails allow it to slide smoothly on the mounting surface, and operators can easily adjust its position as needed, ensuring that the axis alignment and slope of the main unit meet design requirements.

[0021] Optionally, limiting elements can be provided at both ends or specific positions of the guide rail to fix its position after the TBM host 1 reaches the designated position, preventing it from sliding off the guide rail.

[0022] In some embodiments, a guide groove is provided on the mounting surface ( Figure 1 (Not shown), the extension direction of the guide groove is perpendicular to the extension direction of the guide rail, and the guide rail slides along the guide groove to adjust the width between the guide rails.

[0023] Specifically, the guide groove extends perpendicular to the guide rail, allowing the guide rail to slide along the guide groove, thereby adjusting the width between the guide rails. Setting two or more guide grooves on the mounting surface allows for more even support of the guide rails. By adjusting the width between the guide rails, the mounting surface can accommodate TBM main units 1 of different sizes, improving the versatility and flexibility of the launching bracket. It can be used for various models of TBM main units 1, reducing construction costs.

[0024] Optionally, the guide groove is equipped with scales or markings, allowing operators to precisely adjust the position of the guide rails according to the scales, ensuring that the width between the guide rails meets the construction requirements, thus improving the accuracy and reliability of the adjustment. Furthermore, a position sensor can be integrated into the guide groove to monitor the position of the guide rails in real time, facilitating precise adjustments. Adding a drive device such as an electric push rod can drive the guide rails to move relative to the guide groove, and the position of the guide rails can be obtained through the position sensor, facilitating automated adjustments.

[0025] In some embodiments, the adjustable shield machine launching frame device further includes a locking element arranged on a guide rail to fix the guide rail to the guide groove.

[0026] Specifically, locking components are used to lock the guide rails and prevent them from continuing to slide along the guide groove. These locking components can be a combination of bolts and nuts or a locking pin. Bolts pass through the guide rails to lock them in place, or locking pins pass through the guide rails and enter pin holes in the guide grooves to lock the guide rails. Through the fixing effect of the locking components, the guide rails can withstand the weight of the TBM main unit 1 and various loads generated during construction, ensuring the safety and stability of the construction. This ensures that the width between the guide rails meets the construction requirements. This precise fixing capability helps improve the positioning accuracy of the TBM main unit 1 on the mounting surface, effectively preventing the guide rails from loosening or sliding out of the guide groove due to external forces, and avoiding safety accidents caused by guide rail instability.

[0027] In some embodiments, the distance between base 4 and another base 4 is negatively correlated with the height of TBM host 1.

[0028] Specifically, the distance between the two bases 4 can be used to adjust the height of the main unit to ensure that the alignment and slope of the TBM's axis meet the design requirements. The higher the height of the TBM main unit 1, the smaller the distance between the bases 4 needs to be; conversely, the lower the height of the TBM main unit 1, the larger the distance between the bases 4 can be.

[0029] In some embodiments, the adjustable tunnel boring machine launching frame device further includes a spacing adjustment mechanism. Figure 1 (Not shown), the spacing adjustment mechanism includes a telescopic strut or an adjustable screw. The two ends of the telescopic strut are connected to the two bases 4, or the two ends of the adjustable screw are connected to the two bases 4 to adjust the distance between the bases 4.

[0030] Specifically, the spacing adjustment mechanism adjusts the distance between the two bases 4 to accommodate TBM main unit 1 at different heights. By adjusting the spacing of the bases 4, the stability of the TBM main unit 1 during installation and startup can be ensured, and it can adapt to the needs of different construction environments. This helps improve the positioning accuracy of the TBM main unit 1 on the installation surface, thereby improving the overall construction accuracy. The fixing function of the spacing adjustment mechanism can effectively prevent the bases 4 from loosening or slipping due to external forces, avoiding safety accidents caused by instability of the bases 4. Especially in complex construction environments, the use of the spacing adjustment mechanism can significantly improve construction safety.

[0031] Optionally, an emergency braking device can be installed on the sliding path of the spacing adjustment mechanism to quickly lock the base 4 in case of an emergency, prevent the base 4 from sliding, and ensure construction safety.

[0032] In some embodiments, the telescopic strut includes an inner strut and an outer strut. One end of the inner strut slides inside the outer strut. A locking element is provided on the outer strut to lock the inner strut. The ends of the inner strut and the outer strut that are far apart are respectively connected to a base 4 to adjust the distance between the bases 4.

[0033] Specifically, the inner rod is the movable part of the telescopic strut. The inner rod can slide within the outer rod. By adjusting the extension or retraction length of the inner rod, the distance between the bases 4 can be adjusted. Locking devices can be bolts, pins, etc. The main function of the locking devices is to fix the inner rod within the outer rod, preventing it from sliding or shifting during construction and ensuring the stability of the distance between the bases 4. Initial state: The telescopic strut is fully retracted, with the inner rod completely retracted into the outer rod, facilitating installation and transportation. The inner rod is moved manually or using tools such as an electric push rod to adjust its length until the desired distance is reached. The locking devices fix the inner rod within the outer rod, ensuring the stability of the telescopic strut's length. By adjusting the length of the telescopic strut, the distance between the two bases 4 is changed. Scales or marks are set on the telescopic strut, allowing operators to precisely adjust the distance between the bases 4. The locking devices of the telescopic strut effectively prevent the inner rod from sliding or loosening due to external forces, avoiding accidents.

[0034] In some embodiments, the adjustable screw includes a screw body and two adjusting nuts. The screw body is provided with external threads, the adjusting nuts are threadedly connected to the screw body, and the adjusting nuts are connected to the base 4. Rotating the screw body is used to adjust the distance between the bases 4.

[0035] Specifically, both ends of the screw body are threadedly connected to two adjusting nuts, and the length is adjusted by screwing the adjusting nuts in. The adjusting nuts are fixedly connected to the base 4, and the position of the base 4 can be changed by moving the adjusting nuts on the screw body. The threads on the screw body are bidirectional threads, and the threads of the two adjusting nuts are in opposite directions. When the screw is rotated, the two adjusting nuts will move inward or outward simultaneously, adjusting the distance between the two bases 4. For example, when the screw rotates clockwise, the nut at the right-hand thread end will move inward, and the nut at the left-hand thread end will also move inward, thus decreasing the distance between the two bases 4. When the screw rotates counterclockwise, the nut at the right-hand thread end will move outward, and the nut at the left-hand thread end will also move outward, thus increasing the distance between the two bases 4. By precisely controlling the rotation angle of the screw, high-precision adjustment of the distance between the bases 4 can be achieved.

[0036] In some embodiments, the adjustable shield machine launching frame device further includes a safety mechanism, which includes an inclination sensor and a pressure sensor. The inclination sensor is arranged on the mounting base 2 and the first link 5 or the second link to detect the angle between the mounting base 2 and the first link 5 or the second link. The pressure sensor is arranged on the hydraulic rod 3 to detect the pressure of the hydraulic rod 3.

[0037] Specifically, the tilt sensor is positioned on the mounting base 2 and either the first or second connecting rod 5. The exact location is determined based on the design and measurement requirements of the linkage mechanism. It monitors the angle between the mounting base 2 and the connecting rod in real time, ensuring the tilt angle of the TBM main unit 1 meets design requirements. When the detected angle exceeds the preset safety range, the tilt sensor sends an alarm signal to the control system, alerting the operator to take appropriate measures. The pressure sensor monitors the pressure of the hydraulic rod 3 in real time, ensuring the normal operation of the hydraulic system. When the detected pressure exceeds the preset safety range, the pressure sensor sends an alarm signal to the control system, alerting the operator to take appropriate measures. Through real-time monitoring and safety warnings, the safety mechanism effectively prevents accidents caused by abnormal tilt angles or pressure, improving construction safety.

[0038] In some embodiments, the adjustable shield machine launching frame device further includes a lifting mechanism, which includes a telescopic rod, a crossbeam, and a crane. The two ends of the crossbeam are respectively connected to a telescopic rod to form a portal frame, and the crane is arranged on the crossbeam to lift the TBM main unit 1.

[0039] Specifically, Figure 1 The lifting mechanism is not shown; it is located beside the mounting base. The telescopic boom can be electrically operated or composed of multiple telescopic sections, with the inner section sliding within the outer section. Telescopic movement is achieved via hydraulic, electric, or other means. After adjustment to the desired length, the boom is secured using hydraulic, threaded locks, pins, or other locking devices to ensure stability during hoisting. The lower end of the boom is connected to the ground via connectors (such as flanges or bolts) to ensure a secure and stable connection. The boom is used to adjust the height of the lifting mechanism's crossbeam to adapt to different construction environments and the hoisting requirements of the TBM main unit 1. Adjusting the crossbeam height via the boom controls the crane's installation height, allowing for flexible adaptation to the construction environment.

[0040] The two ends of the crossbeam are connected to the upper ends of the telescopic rods via welding, bolting, or other reliable methods, forming a stable portal frame. The crossbeam provides a stable support platform for the crane, ensuring its smooth operation during lifting. The crane can be an electric hoist, hydraulic crane, or other type of lifting equipment. Mounted on the crossbeam, the crane can move along it to flexibly adjust the lifting position. The crane is used to lift the TBM main unit 1 and its components, ensuring the stability and safety of the lifting process. Through rapid telescopic rod adjustment and crane operation, the jacking mechanism significantly reduces lifting time and improves construction efficiency.

[0041] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0043] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0044] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0045] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0046] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An adjustable shield launching device for a tunneling machine, comprising: include: Mounting base, the top of which has a mounting surface for fixing the TBM main unit; A base for detachably connecting to the ground; A linkage mechanism is located between the mounting base and the base. The linkage mechanism includes a first link, a second link, and a hydraulic rod. The first end of the first link and the first end of the second link are pivotally connected via a pivot shaft connected to the mounting base. The second end of the first link and the second end of the second link are respectively pivotally connected to one of the bases. The first end of the hydraulic rod is pivotally connected to the middle of the first link to drive the first link to rotate relative to the mounting base. The second end of the hydraulic rod is pivotally connected to the mounting base.

2. The adjustable tunnel launcher apparatus of claim 1, wherein, A guide rail is provided on the mounting surface, and the TBM main unit is slidably connected to the guide rail.

3. The adjustable tunnel launcher apparatus of claim 2, wherein, A guide groove is provided on the mounting surface, the extension direction of the guide groove is perpendicular to the extension direction of the guide rail, and the guide rail slides along the guide groove to adjust the width between the guide rails.

4. The adjustable tunnel launcher apparatus of claim 3, wherein, It also includes a locking element, which is arranged on the guide rail to fix the guide rail to the guide groove.

5. The adjustable tunnel launcher apparatus of claim 1, wherein, The distance between the base and the other base is negatively correlated with the height of the TBM host.

6. The adjustable tunnel launcher apparatus of claim 1, wherein, It also includes a spacing adjustment mechanism, which includes a telescopic strut or an adjustable screw. The two ends of the telescopic strut are connected to the two bases, or the two ends of the adjustable screw are connected to the two bases to adjust the distance between the bases.

7. The adjustable shield launching device of claim 6, wherein, The telescopic support rod includes an inner rod and an outer rod. One end of the inner rod slides inside the outer rod. A locking element is provided on the outer rod to lock the inner rod. The ends of the inner rod and the outer rod that are far apart are respectively connected to a base to adjust the distance between the bases.

8. The adjustable shield launching device of claim 6, wherein, The adjustable screw includes a screw body and two adjusting nuts. The screw body is provided with external threads, and the adjusting nuts are threadedly connected to the screw body and connected to the base. Rotating the screw body is used to adjust the distance between the bases.

9. The adjustable shield launching device of claim 1, wherein, It also includes a safety mechanism, which includes an angle sensor and a pressure sensor. The angle sensor is arranged on the mounting base and the first or second link to detect the angle between the mounting base and the first or second link. The pressure sensor is arranged on the hydraulic rod to detect the pressure of the hydraulic rod.

10. The adjustable shield launching device of claim 1, wherein, It also includes a lifting mechanism, which includes a telescopic rod, a crossbeam and a crane. The two ends of the crossbeam are respectively connected to one of the telescopic rods to form a portal frame. The crane is arranged on the crossbeam to lift the TBM main unit.

Images