A full-rotation tunneling machine suitable for rectangular cross-section shafts

Abstract

The utility model discloses a full slewing heading machine suitable for rectangular section vertical shaft, full slewing heading machine installs on heading machine hoist and heading machine hoist is located on ring beam, full slewing heading machine includes heading machine support arm, full slewing drive arrangement and excavating arm, full slewing drive arrangement is fixed on rectangular shaft by heading machine support arm, excavating arm is composed of variable diameter oil cylinder, telescopic oil cylinder and excavating drum, fixed end of telescopic oil cylinder is articulated with full slewing drive arrangement, telescopic end is fixedly connected with excavating drum, fixed end of variable diameter oil cylinder is articulated with full slewing drive arrangement, telescopic end is articulated in middle part of telescopic oil cylinder. The utility model has the advantages of: can be applied to the construction of rectangular section vertical shaft in underground engineering shield, jacking pipe working well, and effectively solves the problem of rectangular section vertical shaft construction.

Description

Technical Field

[0001] This utility model relates to the technical field of full-rotation tunneling machines, and in particular to a full-rotation tunneling machine suitable for rectangular cross-section vertical shafts. Background Technology

[0002] Currently, the main construction method for underground shafts in soft soil areas is the ground wall method. However, the ground wall method has several drawbacks: 1) it requires a large design depth, resulting in high costs; 2) it occupies a large area, making it unsuitable for shaft construction in urban areas; and 3) it has a low level of mechanization. In recent years, a mechanized shaft excavation method has gradually been applied in engineering practice. This method uses a new type of shaft tunneling machine for mechanized excavation and assembles precast concrete segments to form the shaft structure. However, this method currently only allows for the construction of circular cross-section shafts. For rectangular cross-section shafts, which are widely used in underground engineering shield tunneling and pipe jacking shafts, there is currently no mechanized excavation method, and only the traditional ground wall method can be used. Therefore, a full-rotation tunneling machine suitable for rectangular cross-section shafts is needed to solve the above problems. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of the existing technology by providing a full-rotation tunneling machine suitable for rectangular cross-section vertical shafts. This full-rotation tunneling machine includes a tunneling machine support arm, a full-rotation drive device, and an excavating arm. The full-rotation drive device is fixed to the rectangular shaft via the tunneling machine support arm. The excavating arm consists of a variable-diameter cylinder, a telescopic cylinder, and an excavating drum. The fixed end of the telescopic cylinder is hinged to the full-rotation drive device, and the telescopic end is fixedly connected to the excavating drum. The fixed end of the variable-diameter cylinder is hinged to the full-rotation drive device, and the telescopic end is hinged to the middle of the telescopic cylinder. The variable-diameter cylinder is used to adjust the outward swing excavation area of ​​the excavating arm, achieving the excavation range of the soil at different angles. The telescopic cylinder is used to adjust the length of the excavating arm, controlling the excavation depth. The excavating drum cuts the soil through continuous rolling, achieving soil excavation. This full-rotation tunneling machine is applied to the construction of rectangular cross-section vertical shafts in underground engineering shield tunneling and pipe jacking working shafts, effectively solving the problems of rectangular cross-section vertical shaft construction.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A full-rotation tunneling machine suitable for rectangular cross-section vertical shafts is disclosed. The full-rotation tunneling machine is mounted on a tunneling machine hoist, which is located on a ring beam. The full-rotation tunneling machine includes a tunneling machine support arm, a full-rotation drive device, and an excavation arm. The full-rotation drive device is fixed to the rectangular shaft via the tunneling machine support arm. The excavation arm consists of a variable-diameter cylinder, a telescopic cylinder, and an excavation drum. The fixed end of the telescopic cylinder is hinged to the full-rotation drive device, and the telescopic end is fixedly connected to the excavation drum. The fixed end of the variable-diameter cylinder is hinged to the full-rotation drive device, and the telescopic end is hinged to the middle of the telescopic cylinder.

[0006] The tunneling machine hoist is provided with multiple hoists along the circumference of the ring beam.

[0007] The tunneling machine support arm is provided in multiple positions along the circumference of the full-rotation drive device.

[0008] The bottom of the full-rotation drive device is provided with a first connecting member, which includes a horizontal section and an inclined section. The top of the telescopic cylinder is hinged to the inclined section of the first connecting member.

[0009] A second connecting member is installed on the telescopic cylinder. The second connecting member includes a vertical section and an inclined section. The telescopic end of the variable diameter cylinder is hinged to the vertical section of the second connecting member, and the inclined section of the second connecting member is hinged to the full-rotation drive device.

[0010] The excavation drum includes a drum body, a bearing, and a drive mechanism. The bearing is mounted on the telescopic end of the telescopic cylinder, the drum body is rotatably mounted on the bearing, and the drive mechanism drives the drum body to rotate.

[0011] The advantages of this utility model are:

[0012] 1. Compared with the traditional ground wall method, the mechanized construction using a full-rotation tunneling machine requires less land area, which can effectively solve the problem of insufficient construction site in the core urban area;

[0013] 2. Fully automated construction operation, high degree of mechanization, and fast construction speed;

[0014] 3. Remotely controllable equipment allows for unmanned underground construction, effectively reducing construction safety risks;

[0015] 4. Existing shaft excavation equipment can only construct shafts with circular cross-sections. This full-rotation tunneling machine can be applied to the construction of rectangular cross-section shafts in underground engineering shield tunneling and pipe jacking working shafts, effectively solving the problem of rectangular cross-section shaft construction. Attached Figure Description

[0016] Figure 1 This is a plan view of the full-rotation tunneling machine and its supporting equipment of this utility model;

[0017] Figure 2 This is a schematic cross-sectional view of the full-rotation tunneling machine of this utility model;

[0018] Figure 3 This is a schematic diagram of the right-angled side excavation of the rectangular cross-section vertical shaft of this utility model;

[0019] Figure 4 This is a schematic diagram of the excavation section at the corner of the rectangular cross-section vertical shaft of this utility model;

[0020] Figure 5 This is a schematic diagram of the overall section division of the rectangular cross-section vertical shaft excavation section of this utility model;

[0021] Figure 6 This is a schematic diagram of the rectangular cross-section vertical shaft excavation process of this utility model;

[0022] like Figures 1-6 As shown in the figure, the markings represent:

[0023] 1. Ring beam; 2. Full-rotation tunneling machine; 3. Tunneling machine hoist; 4. Shaft hoist; 5. Tunneling machine support arm; 6. Rectangular shaft; 7. Full-rotation drive device; 8. Excavating arm; 9. Variable diameter cylinder; 10. Telescopic cylinder; 11. Excavating drum; 12. First connecting piece; 13. Second connecting piece. Detailed Implementation

[0024] The features and other related features of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments, so as to facilitate the understanding of those skilled in the art:

[0025] Example: Figures 1-6 As shown, this embodiment relates to a full-rotation tunneling machine (TBM) suitable for rectangular cross-section vertical shafts. The TBM 2 is mounted on a TBM hoist 3, which is located on a ring beam 1. Multiple hoists 3 (four in this embodiment) are arranged along the circumference of the ring beam. The hoists 3 control the lifting and lowering of the TBM 2, enabling excavation at different depths and lifting to the surface for easy inspection and routine maintenance. The TBM 2's supporting equipment also includes a shaft hoist 4, located on the ring beam 1. The shaft hoist 4 is used to suspend the rectangular shaft 6 and control its lowering.

[0026] like Figures 1-2As shown, the full-rotation tunneling machine 2 includes a tunneling machine support arm 5, a full-rotation drive device 7, and an excavation arm 8. The full-rotation drive device 7 is fixed to the rectangular shaft 6 by four tunneling machine support arms 5 to prevent the full-rotation tunneling machine 2 from rotating, tilting, or becoming unstable during excavation. The excavation arm 8 consists of a variable-diameter cylinder 9, a telescopic cylinder 10, and an excavation drum 11. The fixed end of the telescopic cylinder 10 is hinged to the full-rotation drive device 7, and the telescopic end is fixedly connected to the excavation drum 11. The fixed end of the variable-diameter cylinder 9 is hinged to the full-rotation drive device 7, and the telescopic end is hinged to the excavation drum 11. At the center of the telescopic cylinder 10, a full-rotation drive device 7 is used to control the rotation angle of the excavator arm 8 (the full-rotation drive device 7 drives its bottom to rotate circumferentially, thereby driving the excavator arm 8 to rotate), realizing full-section soil excavation. The excavator arm 8 is connected to the full-rotation drive device 7 via a variable-diameter cylinder 9. The movement of the variable-diameter cylinder 9 controls the outward movement range of the excavator arm 8 in different areas, realizing soil excavation in each divided area. The length of the excavator arm 8 is adjusted by the telescopic cylinder 10 to control the excavation depth in each divided area. In this embodiment, the bottom of the full-rotation drive device 7 is provided with a first connecting member 12, which includes a horizontal section and an inclined section. The top of the telescopic cylinder 10 is hinged to the inclined section of the first connecting member 12. A second connecting member 13 is installed on the telescopic cylinder 10. The second connecting member 13 includes a vertical section and an inclined section. The telescopic end of the variable-diameter cylinder 9 is hinged to the vertical section of the second connecting member 13, and the inclined section of the second connecting member 13 is hinged to the inclined section of the first connecting member 12 on the full-rotation drive device 7. The variable-diameter cylinder 9 drives the second connecting member 13 to rotate, thereby driving the telescopic cylinder 10 to rotate. The top of the telescopic cylinder 10 and the inclined section of the second connecting member 13 rotate coaxially. The arrangement of the second connecting member 13 ensures that the force of the variable-diameter cylinder 9 acts directly on the second connecting member 13 and not on the telescopic cylinder 10, preventing damage to the telescopic cylinder 10. The excavating drum 11 includes a drum body, bearings, and a drive mechanism. The bearings are installed on the telescopic end of the telescopic cylinder 10, and the drum body is rotatably mounted on the bearings. The drive mechanism drives the drum body to rotate, and the continuous rotation and rolling of the drum body cuts the soil to achieve soil excavation.

[0027] like Figures 1-6 As shown, the rotary tunneling machine in this embodiment also has the following construction methods:

[0028] Step 1: As Figure 1As shown, a ring beam 1 is first constructed on the construction site to serve as the equipment installation foundation for the full-rotation tunneling machine 2, the tunneling machine hoist 3, and the shaft hoist 4. The tunneling machine hoist 3 is used to control the lifting and lowering of the full-rotation tunneling machine 2, enabling the full-rotation tunneling machine 2 to excavate at different depths and be lifted to the ground for easy inspection and daily maintenance. The shaft hoist 4 is used to suspend the rectangular shaft 6 and control the sinking of the rectangular shaft 6. The full-rotation tunneling machine 2 is fixed to the rectangular shaft 6 by the tunneling machine support arm 5 to prevent the full-rotation tunneling machine from rotating, tilting, or becoming unstable during the excavation process.

[0029] Step Two: As Figure 2 As shown, the full-rotation tunneling machine 2 mainly consists of a full-rotation drive unit 7, an excavating arm 8, a variable-diameter cylinder 9, a telescopic cylinder 10, and an excavating drum 11. The full-rotation drive unit 7 is used to control the rotation angle of the excavating arm 8 to achieve full-section soil excavation. The excavating arm 8 is connected to the full-rotation drive unit 7 through the variable-diameter cylinder 9. The movement of the variable-diameter cylinder 9 controls the outward movement range of the excavating arm 8 in different areas, realizing soil excavation in each divided area. The length of the excavating arm 8 is adjusted by the telescopic cylinder 10 to control the excavation depth of each divided area. The excavating drum 11 is located at the end of the excavating arm 8 and cuts the soil by continuously rotating and rolling to achieve soil excavation.

[0030] Step 3: As Figures 3-5 As shown, the excavation area is divided into different sections according to the rectangular cross-section dimensions. The width of each excavation area is based on the length of the excavation drum 11. Since the cross-section is rectangular, the distance from the center point of each excavation area is different, requiring the setting of corresponding excavator arm length and excavation radius for different excavation areas. In each excavation cycle, there are two types of sections: straight-edge excavation sections and corner excavation sections. The excavation arm 8 moves sequentially in the preset excavation areas. After completing the excavation of one section, it moves to the next section. Finally, the various excavation areas combine to form the rectangular cross-section shaft excavation face.

[0031] Step Four: As Figure 6 As shown, during excavation, it is necessary to first set the excavation parameters for different division areas, including the number of excavation sections, the length of the excavator arm, and the excavation radius. Then, excavate a single section of soil according to the set excavation parameters. Next, rotate the excavation angle, adjust the length of the excavator arm and the excavation radius to excavate the next section of soil. Repeat the above process until the last section of soil is excavated, which means the rectangular full-section soil excavation at the current depth is completed.

[0032] Step 5: After the single-layer soil excavation is completed, the depth of the full-rotation tunneling machine 2 is lowered by the tunneling hoist 3, and the single-layer soil section excavation work of Step 4 is repeated. The entire rectangular cross-section shaft is excavated by the cyclical excavation work of "lowering depth → section excavation → lowering depth".

[0033] The beneficial technical effects of this embodiment are as follows:

[0034] 1. Compared with the traditional ground wall method, the mechanized construction using a full-rotation tunneling machine requires less land area, which can effectively solve the problem of insufficient construction site in the core urban area;

[0035] 2. Fully automated construction operation, high degree of mechanization, and fast construction speed;

[0036] 3. Remotely controllable equipment allows for unmanned underground construction, effectively reducing construction safety risks;

[0037] 4. Existing shaft excavation equipment can only construct shafts with circular cross-sections. This full-rotation tunneling machine can be applied to the construction of rectangular cross-section shafts in underground engineering shield tunneling and pipe jacking working shafts, effectively solving the problem of rectangular cross-section shaft construction.

[0038] Although the above embodiments have described the concept and embodiments of the present invention in detail with reference to the accompanying drawings, those skilled in the art will recognize that various improvements and modifications can still be made to the present invention without departing from the scope of the claims, and therefore will not be elaborated here.

Claims

1. A full-rotation tunneling machine suitable for rectangular cross-section vertical shafts, characterized in that... The full-rotation tunneling machine is mounted on a tunneling machine hoist, which is located on a ring beam. The full-rotation tunneling machine includes a tunneling machine support arm, a full-rotation drive device, and an excavation arm. The full-rotation drive device is fixed to a rectangular shaft via the tunneling machine support arm. The excavation arm consists of a variable-diameter cylinder, a telescopic cylinder, and an excavation drum. The fixed end of the telescopic cylinder is hinged to the full-rotation drive device, and the telescopic end is fixedly connected to the excavation drum. The fixed end of the variable-diameter cylinder is hinged to the full-rotation drive device, and the telescopic end is hinged to the middle of the telescopic cylinder.

2. The full-rotation tunneling machine suitable for rectangular cross-section vertical shafts as described in claim 1, characterized in that... The tunneling machine hoist is provided with multiple hoists along the circumference of the ring beam.

3. The full-rotation tunneling machine suitable for rectangular cross-section vertical shafts as described in claim 1, characterized in that... The tunneling machine support arm is provided in multiple positions along the circumference of the full-rotation drive device.

4. A full-rotation tunneling machine suitable for rectangular cross-section vertical shafts as described in claim 1, characterized in that... The bottom of the full-rotation drive device is provided with a first connecting member, which includes a horizontal section and an inclined section. The top of the telescopic cylinder is hinged to the inclined section of the first connecting member.

5. A full-rotation tunneling machine suitable for rectangular cross-section vertical shafts as described in claim 1, characterized in that... A second connecting member is installed on the telescopic cylinder. The second connecting member includes a vertical section and an inclined section. The telescopic end of the variable diameter cylinder is hinged to the vertical section of the second connecting member, and the inclined section of the second connecting member is hinged to the full-rotation drive device.

6. A full-rotation tunneling machine suitable for rectangular cross-section vertical shafts as described in claim 1, characterized in that... The excavation drum includes a drum body, a bearing, and a drive mechanism. The bearing is mounted on the telescopic end of the telescopic cylinder, the drum body is rotatably mounted on the bearing, and the drive mechanism drives the drum body to rotate.

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