Shield main drive motor lateral installation system

Abstract

This utility model relates to a lateral mounting system for the main drive motor of a tunnel boring machine (TBM), used to lift the main drive motor onto the main drive unit in conjunction with hoisting equipment. It includes a horizontally positioned lifting cylinder, a connecting flange, and a counterweight base. The lifting cylinder is connected to the hoisting equipment. One end of the lifting cylinder is rotatably connected to the connecting flange, on which the motor to be installed is detachably connected, facilitating the circumferential rotation of the motor. The other end of the lifting cylinder is fixedly connected to the counterweight base, which is equipped with a linear module and a counterweight block controlled by the linear module. The movement direction of the counterweight block is consistent with the axial direction of the lifting cylinder. An angle sensor and a microcontroller are installed inside the lifting cylinder. The angle sensor, microcontroller, and linear module are electrically connected. The microcontroller controls the operation of the linear module based on the signal from the angle sensor. This utility model has fine-tuning functions for lifting posture and motor rotation, providing greater flexibility and facilitating safe and efficient installation by personnel.

Description

Technical Field

[0001] This utility model relates to the field of shield tunneling assembly technology, and in particular to a lateral mounting system for the main drive motor of a shield tunneling machine. Background Technology

[0002] The main drive is a key component of a tunnel boring machine (TBM), typically the heaviest single component during the assembly of the main TBM. The larger the diameter of the TBM, the heavier the main drive will be. Currently, large-diameter TBMs with telescopic main drive functions are becoming increasingly common. Various forms of main drive telescopic mechanisms exist, enabling a non-rigid connection between the main drive and the shield body.

[0003] However, the main drive telescopic mechanism usually needs to be installed around the main drive motor. Especially in the assembly process of large-diameter tunnel boring machines, there are many main drive motors, the space is crowded, and the installation position is complex. The installation sequence and method are closely related to the safety and efficiency of the overall assembly process of the tunnel boring machine.

[0004] In the assembly of a tunnel boring machine (TBM), the assembly of the main drive unit is a crucial step. Considering that the total weight of the main drive typically far exceeds that of other components, it's necessary to reduce weight by not pre-installing the motor to minimize lifting risks and costs. The motor would then be hoisted and installed after the main drive unit is in place. However, due to the presence of the main drive's telescopic mechanism, existing hoisting equipment and tools cannot directly lift the motor, creating difficulties in hoisting it and hindering the company's requirements for safe and efficient production. Summary of the Invention

[0005] To address the problem that existing hoisting equipment and tools cannot directly hoist the main drive motor, this utility model provides a lateral installation system for the main drive motor of a tunnel boring machine. This system is essentially an auxiliary hoisting fixture. The motor to be installed is connected to this fixture, and then conventional hoisting equipment is connected to the fixture. Under the action of the fixture, the motor to be installed can be directly hoisted onto the main drive motor.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] The shield tunneling main drive motor lateral mounting system is used to cooperate with the hoisting equipment to hoist the main drive motor onto the main drive. It includes a horizontally placed hoisting cylinder, a connecting flange and a counterweight seat. The hoisting cylinder is connected to the hoisting equipment. One end of the hoisting cylinder is rotatably connected to the connecting flange. The motor to be installed is detachably connected to the connecting flange to facilitate the circumferential rotation of the motor to be installed.

[0008] The other end of the hoisting cylinder is fixedly connected to the counterweight base. The counterweight base is provided with a linear module and a counterweight block controlled by the linear module. The moving direction of the counterweight block is consistent with the axial direction of the hoisting cylinder. An angle sensor and a microcontroller are provided inside the hoisting cylinder. The angle sensor, the microcontroller and the linear module are electrically connected.

[0009] Furthermore, the lifting cylinder is a hollow cylindrical body, arranged horizontally, and equipped with lifting lugs for connecting lifting equipment.

[0010] Furthermore, the number of lifting lugs is four, with the four lifting lugs arranged in pairs along the axial direction of the lifting cylinder, and the two lifting lugs in each pair arranged along the circumference of the lifting cylinder.

[0011] Furthermore, the connecting flange includes a flange and a rotating ring. The flange is bolted to the flange of the motor to be installed. The rotating ring is fixedly installed on one end face of the flange and is inserted into one end of the lifting cylinder and rotatably connected to the lifting cylinder.

[0012] Furthermore, the rotating ring is fitted with multiple retaining rings and multiple bearings, which are arranged alternately at intervals. One retaining ring away from the flange is bolted to the rotating ring. The outer ring of the bearing fits tightly against the inner wall of the lifting cylinder, which improves the smoothness of the connecting flange rotation.

[0013] Furthermore, the counterweight base includes a track beam, a connecting plate, a support plate, and a reinforcing rib. The number of track beams is two arranged at intervals. A connecting plate and a support plate are provided between the two track beams to facilitate connecting and fixing the two track beams. The connecting plate and the support plate are arranged at both ends of the track beam, and a reinforcing plate is provided between the corresponding connecting plate and the track beam.

[0014] Multiple reinforcing ribs are also provided between the two track beams, and the multiple reinforcing ribs are arranged at intervals along the axial direction of the hoisting cylinder.

[0015] Furthermore, the linear module includes a servo motor, a lead screw controlled by the servo motor, a nut seat meshing with the lead screw, and a control box with a built-in driver. The microcontroller, the driver, and the servo motor are electrically connected, and the driver directly controls the operation of the servo motor.

[0016] A sliding platform is fixedly installed on the nut seat. The sliding platform is arranged between the two track beams and moves along the length of the track beams. The counterweight is detachably installed on the sliding platform to facilitate the removal and placement of the counterweight. There are multiple counterweights.

[0017] The beneficial effects of this utility model through the above technical solution are:

[0018] This utility model features a reasonable structural design. Based on a lifting cylinder, a connecting flange is rotatably mounted at the front of the lifting cylinder, on which the motor to be installed can be mounted, facilitating the circumferential rotation of the motor and allowing for flexible adjustment of its installation position. A sliding counterweight is located at the rear of the lifting cylinder, essentially acting as an adjustable counterweight behind the motor. Utilizing the principle of a balance beam, the motor's center of gravity is shifted rearward, allowing the motor to be installed from the side instead of from above, effectively avoiding the main drive telescopic mechanism.

[0019] This invention features fine-tuning functions for lifting posture and motor rotation, offering significant flexibility and facilitating safe and efficient installation of the main drive motor. With the cooperation of angle sensors, microcontrollers, and linear modules, the counterweight position can be adjusted in real time, keeping the overall center of gravity below the lifting point and achieving automatic balance in the lifting posture, thus reducing the difficulty of installation and disassembly. Attached Figure Description

[0020] Figure 1 This is one of the isometric views of the shield tunneling main drive motor lateral mounting system of this utility model.

[0021] Figure 2 This is the second isometric drawing of the shield tunneling main drive motor lateral mounting system of this utility model.

[0022] Figure 3 This is a schematic diagram showing the connection between the motor to be installed and the hoisting cylinder in the lateral mounting system of the shield tunnel main drive motor of this utility model.

[0023] Figure 4 This is a cross-sectional view of the connection between the motor to be installed and the hoisting cylinder in the shield tunnel main drive motor lateral installation system of this utility model.

[0024] Figure 5 This utility model relates to a lateral mounting system for the main drive motor of a tunnel boring machine. Figure 4 Enlarged schematic diagram of the bearing and retaining ring at point A.

[0025] Figure 6 This utility model relates to a lateral mounting system for the main drive motor of a tunnel boring machine. Figure 5 A schematic diagram showing the connection between the retaining ring and the rotating ring at point I.

[0026] Figure 7 This utility model relates to a lateral mounting system for the main drive motor of a tunnel boring machine. Figure 5 Diagram showing the connection between the flange at point II and the motor to be installed.

[0027] Figure 8 This is the control flowchart of the shield tunneling main drive motor lateral mounting system of this utility model.

[0028] The attached diagram is labeled as follows: 1 connecting flange, 101 flange plate, 102 rotating ring, 2 lifting cylinder, 3 connecting plate, 4 reinforcing plate, 5 linear module, 501 control box, 502 servo motor, 503 lead screw, 504 nut seat, 6 reinforcing rib, 7 counterweight, 8 sliding platform, 801 insert rod, 9 track beam, 901 guide rail, 10 lifting lug, 11 bearing, 12 retaining ring, 13 support plate, 14 positioning bolt, 15 mounting bolt, 16 motor base, 17 limit plate, 18 motor to be installed. Detailed Implementation

[0029] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings:

[0030] like Figures 1-8 As shown, the shield tunneling main drive motor lateral mounting system is used to cooperate with hoisting equipment to hoist the main drive motor onto the main drive. The lateral mounting system includes a horizontally placed hoisting cylinder 2, a connecting flange 1, and a counterweight base. The hoisting cylinder 2 is a hollow steel cylinder, arranged horizontally, and connected to the hoisting equipment, which can be an overhead crane or a conventional crane or other existing equipment.

[0031] When the lifting cylinder 2 is connected to the lifting equipment, it is equipped with lifting lugs 10 for connecting the lifting equipment. There are four lifting lugs 10, which are arranged in pairs along the axial direction of the lifting cylinder 2. The two lifting lugs 10 in each pair are arranged circumferentially along the lifting cylinder 2. The wire rope or hook of the lifting equipment can be connected to the lifting lugs 10.

[0032] One end of the lifting cylinder 2 is rotatably connected to a connecting flange 1. Specifically, the connecting flange 1 includes a flange 101 and a rotating ring 102 that are welded together. The rotating ring 102 is fixedly installed at the center of one end face of the flange 101. The rotating ring 102 is inserted into one end of the lifting cylinder 2 and rotatably connected to the lifting cylinder 2, so that the entire connecting flange 1 can rotate relative to the lifting cylinder 2.

[0033] To improve the smoothness of the rotation of the connecting flange 1, three retaining rings 12 and two bearings 11 are fitted onto the rotating ring 102, with the retaining rings 12 and bearings 11 arranged alternately. The retaining rings 12 are used to position the bearings 11 and ensure the spacing between the bearings 11. The retaining ring 12 furthest from the flange 101 is bolted to the rotating ring 102. At least two positioning bolts 14 are used to connect the retaining ring 12 furthest from the flange 101 to the rotating ring 102, which can prevent the retaining rings 12 and bearings 11 from detaching from the rotating ring 102. The outer ring of the bearing 11 fits tightly against the inner wall of the lifting cylinder 2.

[0034] The motor 18 to be installed is detachably connected to the connecting flange 1, allowing the motor 18 to rotate for adjusting its circumferential position. Specifically, the flange 101 is bolted to the motor 18, meaning multiple mounting bolts 15 pass through the flange 101 and are fixed to the rear end of the motor 18, which is opposite to the motor output shaft. It should be noted that the connecting flange 1 is a replaceable part. Various types of connecting flanges 101 can be manufactured depending on their dimensions. For different models of motors 18, only the appropriate connecting flange 1 needs to be replaced.

[0035] To balance the weight of the motor during hoisting, a counterweight is fixedly connected to the other end of the hoisting cylinder 2. The counterweight includes a track beam 9, a connecting plate 3, a support plate 13, and a reinforcing rib 6. The track beam 9 is a rectangular tube structure, and there are two track beams arranged at intervals. The length direction of the track beam 9 is consistent with the axial direction of the hoisting cylinder 2.

[0036] To connect and fix the two track beams 9, a connecting plate 3 and a support plate 13 are provided between the two track beams 9, and the connecting plate 3 and the support plate 13 are respectively arranged at both ends of the track beams 9. The connecting plate 3 has a larger area and is directly welded and fixed to the end of the hoisting cylinder 2, while the support plate 13 has a smaller area and is located away from the hoisting cylinder 2.

[0037] Multiple reinforcing ribs 6 are also provided between the two track beams 9. These reinforcing ribs 6 are arranged at intervals along the axial direction of the hoisting cylinder 2 to improve the structural strength of the entire counterweight seat. Correspondingly, two reinforcing plates 4 are provided between the connecting plate 3 and the track beam 9. The reinforcing plates 4 are trapezoidal plates, and their length is consistent with the length of the track beam 9. The reinforcing plates 4 increase the connection strength between the track beam 9 and the connecting plate 3.

[0038] The counterweight base is equipped with a linear module 5 and a counterweight block 7 controlled by the linear module 5. The linear module 5 includes a servo motor 502, a lead screw 503 controlled by the servo motor 502, a nut seat 504 meshing with the lead screw 503, and a control box 501 with a built-in driver. A motor base 16 is welded between the connecting plate 3 and the track beam 9. The servo motor 502 is mounted on the motor base 16 and is restricted by a limiting plate 17 to prevent the servo motor 502 from moving.

[0039] One end of the lead screw 503 is connected to the output shaft of the servo motor 502, and the other end is rotatably connected to the support plate 13. The driver controls the operation of the servo motor 502, which drives the lead screw 503 to rotate, allowing the nut seat 504 on the lead screw 503 to move linearly. A sliding platform 8 is fixedly mounted on the nut seat 504, arranged between two track beams 9 and moving along the length of the track beams 9. A guide rail 901 is provided on the track beams 9, and the sliding platform 8 moves along the guide rail 901, providing a certain sliding direction.

[0040] A counterweight 7 is detachably mounted on the sliding platform 8, allowing the counterweight 7 to move. The direction of movement of the counterweight 7 is consistent with the axis of the lifting cylinder 2, enabling it to move closer to or further away from the lifting cylinder 2 to match the weight of the motor 18 to be installed. The counterweight 7 is a steel plate, and multiple counterweights 7 are available, with the appropriate number selected according to requirements. During installation, multiple insert rods 801 are threaded onto the sliding platform 8. The insert rods 801 are arranged vertically, and holes are drilled in the counterweight 7, into which the insert rods 801 are inserted, facilitating the easy placement and removal of the counterweight 7.

[0041] To monitor the attitude of the entire lateral mounting system and adjust the position of the counterweight 7 in a timely manner based on its attitude, an angle sensor and a microcontroller are installed inside the lifting cylinder 2. The angle sensor can be a MEMS accelerometer or gyroscope module, thereby monitoring the tilt angle of the entire suspended object in real time.

[0042] The angle sensor, microcontroller, and linear module 5 are electrically connected. The microcontroller can be an STM32 series microcontroller. It reads data from the angle sensor, calculates the tilt angle in real time, and, based on the current tilt angle and the target balance state, calculates the direction and distance the counterweight 7 needs to move. The microcontroller, driver, and servo motor 502 are electrically connected. The microcontroller generates control signals and sends them to the driver, which controls the precise rotation of the servo motor 502 to move the counterweight 7, thereby changing the center of gravity of the entire suspended object and achieving automatic balance.

[0043] The principle of this utility model is as follows: After the motor 18 to be installed is mounted on the connecting flange 1 and the hoisting equipment is connected to the entire lateral installation system, the hoisting operation of the motor 18 to be installed begins. During the hoisting process, the angle sensor monitors the tilt posture of the entire hoisted object in real time. When the tilt angle value is greater than 0, the servo motor 502 drives the lead screw 503 to rotate, causing the counterweight 7 to move forward. When the tilt angle value is less than 0, the counterweight 7 moves backward, thus keeping the posture of the entire hoisted object balanced.

[0044] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the patent claims of this utility model should be included within the scope of the patent application of this utility model.

Claims

1. A shield main drive motor lateral installation system for hoisting a main drive motor to a main drive in cooperation with a hoisting device, characterized in that, It includes a horizontally placed lifting cylinder (2), a connecting flange (1) and a counterweight seat. The lifting cylinder (2) is connected to the lifting equipment. One end of the lifting cylinder (2) is rotatably connected to the connecting flange (1). The motor (18) to be installed is detachably connected to the connecting flange (1). The other end of the hoisting cylinder (2) is fixedly connected to the counterweight seat. The counterweight seat is provided with a linear module (5) and a counterweight block (7) controlled by the linear module (5). The moving direction of the counterweight block (7) is consistent with the axial direction of the hoisting cylinder (2). An angle sensor and a microcontroller are provided inside the hoisting cylinder (2). The angle sensor, the microcontroller and the linear module (5) are electrically connected.

2. The shield tunneling main drive motor lateral mounting system according to claim 1, characterized in that, The hoisting cylinder (2) is a hollow cylindrical body. The hoisting cylinders (2) are arranged horizontally, and the hoisting cylinders (2) are provided with lifting lugs (10) for connecting hoisting equipment.

3. The shield tunneling main drive motor lateral mounting system according to claim 2, characterized in that, The number of lifting lugs (10) is four. The four lifting lugs (10) are arranged in pairs along the axial direction of the lifting cylinder (2), and the two lifting lugs (10) in each pair are arranged along the circumferential direction of the lifting cylinder (2).

4. The shield tunneling main drive motor lateral mounting system according to claim 1, characterized in that, The connecting flange (1) includes a flange (101) and a rotating ring (102). The flange (101) is bolted to the flange of the motor (18) to be installed. The rotating ring (102) is fixedly installed on one end face of the flange (101). The rotating ring (102) is inserted into one end of the lifting cylinder (2) and is rotatably connected to the lifting cylinder (2).

5. The shield tunneling main drive motor lateral mounting system according to claim 4, characterized in that, The rotating ring (102) is fitted with multiple retaining rings (12) and multiple bearings (11). The retaining rings (12) and bearings (11) are arranged alternately at intervals. One retaining ring (12) away from the flange (101) is bolted to the rotating ring (102). The outer ring of the bearing (11) is tightly fitted to the inner wall of the hoisting cylinder (2).

6. The shield tunneling main drive motor lateral mounting system according to claim 1, characterized in that, The counterweight includes a track beam (9), a connecting plate (3), a support plate (13), and a reinforcing rib (6). The number of track beams (9) is two arranged at intervals. A connecting plate (3) and a support plate (13) are provided between the two track beams (9). The connecting plate (3) and the support plate (13) are arranged at both ends of the track beam (9). A reinforcing plate (4) is provided between the corresponding connecting plate (3) and the track beam (9). Multiple reinforcing ribs (6) are also provided between the two track beams (9), and the multiple reinforcing ribs (6) are arranged at intervals along the axial direction of the hoisting cylinder (2).

7. The shield tunneling main drive motor lateral mounting system according to claim 6, characterized in that, The linear module (5) includes a servo motor (502), a lead screw (503) controlled by the servo motor (502), a nut seat (504) meshing with the lead screw (503), and a control box (501) with a built-in driver. The microcontroller, the driver, and the servo motor (502) are electrically connected. A sliding platform (8) is fixedly installed on the nut seat (504). The sliding platform (8) is arranged between two track beams (9) and moves along the length of the track beams (9). The counterweight (7) is detachably installed on the sliding platform (8). There are multiple counterweights (7).

Images