Tunneling machine head translation turning device and translation turning method

Abstract

The application relates to the field of shield machine construction auxiliary equipment, in particular to a shield machine head translation turning device and a translation turning method, which comprises a bracket body and multiple push oil cylinders, the multiple push oil cylinders are arranged on the two sides of the bracket body in two groups, further comprises a steering part, the steering part is provided with multiple push oil cylinders, the steering part is a spherical structure, the steering part is installed on the bracket body and can be rotated at will, one end of the push oil cylinder is connected to the steering part, and rotating the steering part can make the push oil cylinder be in a vertical state or a horizontal state. The application has the effects of reducing the labor burden of workers and improving construction efficiency.

Description

Technical Field

[0001] This application relates to the technical field of auxiliary equipment for tunnel boring machine (TBM) construction, and in particular to equipment and methods for translating and turning the head of a TBM. Background Technology

[0002] A tunnel boring machine (TBM) is a type of tunnel boring machine that uses the shield tunneling method and is mainly used for tunnel construction. During TBM construction, there are often situations where the TBM starts from one end of the tunnel to the other and then reverses direction along a different path, requiring the TBM to turn around.

[0003] The main method for turning the tunnel boring machine (TBM) head is to install a bracket when the TBM head exits the tunnel for reception. A hydraulic cylinder mounted on the side of the bracket then moves or rotates the bracket, enabling the TBM head to turn. For example, utility model patent CN216950374U discloses a bracket for a TBM. It mainly includes a bracket body, a rolling device, a lifting cylinder, and a rotating cylinder. The lifting cylinder is mounted on the bracket body and is used to adjust the angle of the bracket body when receiving the TBM. The rolling device is installed at the bottom of the bracket body. After the TBM is received, the piston rod of the lifting cylinder retracts, bringing the rolling device into contact with the ground. At this time, a rotating cylinder mounted on the side pushes the bracket from one side, causing it to rotate and thus turning the TBM head.

[0004] In actual construction, to improve the utilization rate of hydraulic cylinders and reduce production costs, the lifting cylinders used to drive the support frame are removed after the support frame is received, and then used for the rotation and movement of the support frame. Large tunnel boring machines have large hydraulic cylinders that are also quite heavy during the turning process. The disassembly and reinstallation of these cylinders not only increases the workload for construction workers but also hinders efficiency. Summary of the Invention

[0005] In order to reduce the workload of workers and improve construction efficiency, this application provides equipment and method for the translation and turning of the tunnel boring machine head.

[0006] The shield tunneling machine head translation and turning equipment and method provided in this application adopt the following technical solution:

[0007] The shield tunneling machine head translation and turning device includes a bracket body and multiple jacking cylinders. The multiple jacking cylinders are arranged in two groups on both sides of the bracket body. It also includes a steering component, with multiple steering components corresponding to the jacking cylinders. The steering component has a spherical structure and is mounted on the bracket body and can rotate arbitrarily. One end of the jacking cylinder is connected to the steering component. Rotating the steering component can make the jacking cylinder stand in a vertical or horizontal position.

[0008] By adopting the above technical solution, when the support frame receives the tunnel boring machine (TBM), the jacking cylinder is rotated to bring it into a vertical position. In this state, one end of the jacking cylinder rests against a steel plate (the steel plate is pre-laid here, partly to level the working shaft surface and partly to serve as a support surface during the movement or rotation of the support frame). The extension and retraction of the piston rod of the jacking cylinder can drive the support frame to rise or fall. By controlling the different extension and retraction amounts of the piston rods of the jacking cylinders at different positions, the receiving angle of the support frame can be controlled. After the TBM is received, the jacking cylinder is rotated to make it horizontal. At this time, the end of the jacking cylinder away from the steering component can be rested against the shaft wall. By setting supports on the steel plate, the end of the jacking cylinder away from the steering component is supported. At this time, by controlling the extension and retraction of the piston rod of the jacking cylinder, the support frame can be moved. When it is necessary to rotate the TBM, the states of the two diagonally opposite jacking cylinders need to be changed to a horizontal state. Of course, the states of more jacking cylinders can be adjusted according to the actual situation. This explanation uses two jacking cylinders as an example. When the piston rods of the two jacking cylinders extend or retract, they apply opposite forces to both ends of the support body, thereby causing the support body to rotate and enabling the tunnel boring machine to turn around. In this application, when the tunnel boring machine needs to be rotated, there is no need to disassemble and reinstall the jacking cylinders, thus reducing the workload of workers and improving construction efficiency.

[0009] Optionally, the bracket body has a receiving groove corresponding to the push cylinder, the steering component is located in the receiving groove, and the two parallel side walls of the receiving groove have slots, and the steering component rotates with the two slots.

[0010] By adopting the above technical solution, part of the steering component is located in the slot, which can prevent the steering component from separating from the bracket body and improve the stability of the connection between the steering component and the bracket body.

[0011] Optionally, the side of the slot is an arc-shaped surface, the axis of the arc-shaped surface is perpendicular to the ground, and the steering component can slide vertically within the slot.

[0012] By adopting the above technical solution, the jacking cylinder can be slidable after it is in a horizontal state, so that it is close to the ground, reducing the impact on the movement of construction personnel and facilitating the connection between the jacking cylinder and the steel plate.

[0013] Optionally, a fitting groove is provided on the side of the receiving groove away from the ground, and the side of the steering component can fit into the side of the fitting groove.

[0014] By adopting the above technical solution, when the jacking cylinder is in a vertical position, the side of the steering component fits against the side of the fitting groove, increasing the contact area between the steering component and the bracket body, thereby reducing the pressure on the steering component and minimizing the occurrence of damage to the steering component. Simultaneously, the fitting groove and the locking groove cooperate to limit the rotation of the jacking cylinder in the vertical plane, thus preventing the jacking cylinder from tilting and further improving the stability of the jacking cylinder during use.

[0015] Optionally, a drive assembly is provided in the receiving groove. The drive assembly includes a drive block, which is slidably connected to the side wall of the receiving groove in a vertical direction. A rotation groove is provided on the side wall of the drive block near the steering component, and the steering component is rotatably engaged with the rotation groove.

[0016] By adopting the above technical solution, the moving drive block can drive the steering component to rise or fall, making it convenient for workers to adjust the position of the jacking cylinder.

[0017] Optionally, the drive assembly further includes a drive screw, which is rotatably connected to the bracket body about its own axis, and the drive screw is threadedly connected to the drive block.

[0018] By adopting the above technical solution, the rotating drive screw, through its threaded action, can move the drive block, thereby achieving the lifting and lowering of the jacking cylinder. Simultaneously, due to the deceleration effect of the threaded connection, construction personnel can rotate the drive screw with less effort to adjust the position of the jacking cylinder.

[0019] Optionally, a guide assembly is provided in the receiving groove. The guide assembly includes a guide plate located below the push cylinder. A guide groove is provided on the side wall of the receiving groove. The guide plate is slidably connected in the guide groove along a horizontal square. Sliding the guide groove can cause the guide plate to move closer to the push cylinder. A guide surface is provided on the guide plate. After the push cylinder abuts against the guide surface, the guide surface can guide the push cylinder to rotate out of the receiving groove.

[0020] By adopting the above technical solution, when it is necessary to adjust the push cylinder to a horizontal position, the sliding guide plate moves towards the push cylinder until it is below it. At this point, the push cylinder moves downwards. Once the end of the push cylinder abuts against the guide surface, as the cylinder continues to move downwards, it automatically moves out of the receiving groove, thus achieving automatic switching of the push cylinder's state and further reducing the workload of workers.

[0021] Optionally, the guide assembly further includes a rotating rod and a connecting rod. The rotating rod is disposed on one side of the guide plate along the sliding direction of the guide plate. The rotating rod is rotatably connected to the bracket body, and the rotation axis of the rotating rod is perpendicular to the moving direction of the guide plate. One end of the connecting rod is rotatably connected to the rotating rod, and the other end is rotatably connected to the guide plate.

[0022] By adopting the above technical solution, rotating the rotating rod changes the position of the end of the rotating rod away from its own axis on a plane parallel to the sliding direction of the guide plate. This, in turn, allows the guide plate to move via the connecting rod, thus achieving adjustment of the guide plate's position.

[0023] A method for translating and turning a tunnel boring machine includes laying and fixing steel plates; receiving the tunnel boring machine; and also includes:

[0024] Change the state of the jacking cylinder so that it is parallel to the ground;

[0025] Connect the push cylinder to the ground / well wall to provide support for the push cylinder;

[0026] Control the extension and retraction of the piston rod of the jacking cylinder until the tunnel boring machine moves / rotates to the designated position.

[0027] By adopting the above technical solution, when the tunnel boring machine needs to move or rotate, the position of the jacking cylinder is adjusted so that it is parallel to the ground, and then the end of the jacking cylinder away from the support body is connected to the steel plate. In this state, the extension and retraction of the piston rod of the jacking cylinder can apply a force parallel to the ground to the support body, thereby driving the support body and the tunnel boring machine to rotate or move. Moreover, it eliminates the process of disassembling and reinstalling the jacking cylinder, reducing the workload of workers and improving construction efficiency.

[0028] Optionally, changing the state of the push cylinder includes the following steps:

[0029] Adjust the position of the guide plate so that it is directly below the push cylinder;

[0030] Rotate the drive screw to control the drive block to move downwards.

[0031] By adopting the above technical solution, when changing the state of the push cylinder, the guide plate is moved to a position directly below the push cylinder. At this time, the control drive block moves downward, thereby driving the push cylinder downward. When the end of the push cylinder abuts against the guide plate, the guide plate drives the push cylinder to tilt outward from the receiving groove, so that the drive block can automatically rotate to a horizontal state during the downward movement of the push cylinder, further reducing the workload of the workers.

[0032] In summary, this application includes the following beneficial technical effects:

[0033] After the tunnel boring machine (TBM) receives the data, rotating the jacking cylinder allows it to be parallel to the ground. Once the jacking cylinder is parallel to the ground, the end of the jacking cylinder furthest from the support frame is connected to a steel plate. As the piston rod of the jacking cylinder extends and retracts, it applies a force parallel to the ground to the support frame, thereby causing the support frame to move or rotate. This avoids the need to disassemble and reinstall the jacking cylinder, reducing the workload of workers and improving construction efficiency. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0035] Figure 2 This is a schematic diagram of the structure of the support unit in an embodiment of this application.

[0036] Figure 3 This is a schematic diagram of the internal first angle structure of the outrigger according to an embodiment of this application, mainly used to show the connection relationship between the push cylinder and the outrigger.

[0037] Figure 4 This is an embodiment of the present application. Figure 3 Enlarged view of section A.

[0038] Figure 5 This is a state diagram of the bracket body during translation according to an embodiment of this application.

[0039] Figure 6 This is a diagram showing the state of the bracket body rotating according to an embodiment of this application.

[0040] Figure 7 This is a schematic diagram of the structure of the rotating support assembly according to an embodiment of this application.

[0041] Figure 8 This is a schematic diagram of the second angle structure inside the outrigger according to an embodiment of this application.

[0042] Figure 9 This is a schematic diagram of the structure of the driver block in an embodiment of this application.

[0043] Reference numerals: 1. Bracket body; 11. Support unit; 12. Support frame; 13. Support leg; 14. Receiving groove; 2. Steering and lifting assembly; 21. Steering component; 22. Pushing cylinder; 23. Slot; 24. Fitting groove; 3. Drive assembly; 31. Drive block; 32. Drive screw; 33. Connecting block; 34. Rotating groove; 4. Guide assembly; 41. Guide plate; 42. Rotating rod; 43. Connecting rod; 44. Connecting shaft; 45. Rocker arm; 46. Locking component; 47. Guide groove; 48. Guide surface; 5. Rotating support assembly; 51. Fixed seat; 52. Rotating shell; 53. Pad. Detailed Implementation

[0044] The following is in conjunction with the appendix Figure 1-9 This application will be described in further detail.

[0045] This application discloses a shield tunneling machine head translation and turning device.

[0046] Reference Figure 1 The tunnel boring machine (TBM) head translation and turning device includes a bracket body 1 and multiple steering and lifting components 2. The steering and lifting components 2 are divided into two groups, respectively arranged on both sides of the trajectory line along the length of the bracket body 1 (in this embodiment, the length of the bracket body 1 is parallel to the axis of the TBM after it is placed on the bracket). The steering and lifting components 2 are mounted on the bracket body 1 and are used to apply vertical or horizontal forces to the bracket body 1, thereby enabling the bracket body 1 to rise, rotate, or translate.

[0047] Reference Figure 1 and Figure 2 The bracket body 1 includes multiple support units 11 arranged in a horizontal square pattern. Each support unit 11 protects a support frame 12 and two legs 13. The legs 13 are square columnar structures, with each leg 13 vertically positioned on either side of the support frame 12 to support it. Flanges are welded to the sides of the support frame 12, and the flanges of adjacent support frames 12 are fitted together and fixed together with screws to form the bracket body 1, thus supporting the tunnel boring machine.

[0048] Reference Figure 2 and Figure 3 A receiving groove 14 is provided on the side of the outrigger 13 away from the support frame 12, corresponding to the position of the steering and lifting assembly 2. The steering and lifting assembly 2 is installed in the receiving groove 14. The steering and lifting assembly 2 includes a steering component 21 and a push cylinder 22. Slots 23 are provided on two parallel side walls of the receiving groove 14. The sides of the slots 23 are arc-shaped, and the axis of the arc-shaped surface is perpendicular to the ground. The steering component 21 has a spherical structure, and its side is tangent to the sides of the two slots 23. The two slots 23 limit the horizontal movement of the steering component 21, preventing it from disengaging from the outrigger 13 and improving its stability during use. The steering component 21 can rotate freely and slide squarely along the axis of the arc-shaped surface. The piston rod end of the push cylinder 22 is fixedly connected to the steering component 21 by screws (not shown in the figure). Rotating the steering component 21 drives the push cylinder 22 to rotate. A clearance opening is provided on the side of the receiving groove 14 near the ground. When the push cylinder 22 is in a vertical position, the cylinder body of the push cylinder 22 moves downward relative to the piston rod and passes through to the outside of the receiving groove 14 to abut against the ground, thereby driving the bracket body 1 to rise and fall.

[0049] Reference Figure 2 , Figure 3 and Figure 4A fitting groove 24 is provided on the side of the receiving groove 14 away from the ground. When the hydraulic cylinder 22 is in the vertical position, the steering component 21 is partially placed in the fitting groove 24, and the side of the fitting groove 24 fits against the side of the steering component 21. The fitting groove 24 increases the contact area between the steering component 21 and the bracket body 1, improving the stability of the hydraulic cylinder 22 in raising and lowering the bracket body 1. At the same time, the fitting groove 24 cooperates with the locking groove 23 to limit the rotation of the hydraulic cylinder 22 in the vertical plane, thereby preventing the hydraulic cylinder 22 from tilting during the adjustment of the height of the bracket body 1, further improving the stability of the hydraulic cylinder 22 during use.

[0050] Reference Figure 2 and Figure 5 When it is necessary to move the bracket body 1 horizontally, the push cylinder 22 on one side of the bracket is rotated to a horizontal state, and then the end of the push cylinder 22 away from the steering component 21 is connected to the steel plate. When the piston rod of the push cylinder 22 extends or retracts, it can apply a horizontal force to the bracket body 1, thereby driving the bracket to move.

[0051] Reference Figure 2 and Figure 6 When the bracket body 1 needs to be rotated, the push cylinder 22 is rotated to make it parallel to the ground. It is important to note that during the rotation of the bracket body 1, it is not necessary to rotate all the push cylinders 22 to a parallel position to the ground. Only the push cylinders 22 located diagonally opposite each other in the two sets of steering and lifting assemblies 2 on both sides of the bracket body 1 (i.e., the push cylinders 22 at both ends of the bracket body 1 in the steering and lifting assemblies 2 on both sides of the bracket body 1) need to be rotated to a parallel position to the ground. The end of the push cylinder 22 furthest from the steering component 21 is rotatably connected to the steel plate to accommodate changes in the angle between the length direction of the push cylinder 22 and the length direction of the bracket body 1 during the bracket rotation.

[0052] Reference Figure 2 and Figure 6 For ease of description, in this embodiment, when the bracket body 1 rotates, the two diagonally positioned hydraulic cylinders are parallel to the ground, and are defined as the first hydraulic cylinder and the second hydraulic cylinder. The first and second hydraulic cylinders are controlled by a hydraulic system to push, thereby applying opposing forces to both ends of the bracket body 1, thus driving the bracket body 1 to rotate. Since the stroke of the pushing hydraulic cylinder 22 is limited, in actual construction, the position of the pushing hydraulic cylinder 22 connected to the steel plate can be moved according to the actual situation to complete a large-angle rotation of the bracket body 1.

[0053] Reference Figure 5 and Figure 7During the rotation of the bracket body 1, a rotating support assembly 5 is provided between the push cylinder 22 and the steel plate to facilitate the connection between the push cylinder 22 and the steel plate. The rotating support assembly 5 includes a fixed base 51 and a rotating shell 52. The fixed base 51 is detachably connected to the ground. In this embodiment, the fixed base 51 is welded to the steel plate, and the connection between the fixed base 51 and the steel plate is subsequently cut to achieve a detachable connection between the fixed base 51 and the steel plate. In other embodiments, screws can also be used to fix the fixed base 51. The rotating shell 52 is rotatably connected to the fixed base 51. The rotating shell 52 has a shell structure, and openings are provided on the side of the rotating shell 52 away from the ground and on the side near the bracket, so that the push cylinder 22 can be rotatably inserted into the rotating shell 52 from above, realizing the rotatable connection between the push cylinder 22 and the steel plate.

[0054] Reference Figure 5 and Figure 7 The rotating support assembly 5 also includes a pad 53, which is located within the rotating housing 52 and on the side of the push cylinder 22 away from the steering component 21. The pad 53 increases the friction between the push cylinder 22 and the rotating housing 52, improving the stability of the bracket body 1 during rotation driven by the push cylinder 22. In this embodiment, the pad 53 is a wooden board; in other embodiments, the pad 53 can also be made of a material with a certain degree of elasticity, such as rubber.

[0055] Reference Figure 2 and Figure 8 To facilitate user adjustment of the vertical position of the steering component 21, a drive assembly 3 is provided on the bracket body 1 at the position corresponding to the push cylinder 22. The drive assembly 3 includes a drive block 31, which is slidably connected vertically to the side wall adjacent to the receiving groove 14 and the slot 23. (Refer to...) Figure 9 The drive block 31 has a rotating groove 34 on its side near the steering component 21, and the steering component 21 rotates in conjunction with the rotating groove 34. The sliding drive block 31 can drive the steering component 21 to move, which in turn drives the jacking cylinder 22 to move, making it convenient for construction personnel to change the state of the jacking cylinder 22.

[0056] Reference Figure 2 and Figure 8 The drive assembly 3 also includes a drive screw 32 and a connecting block 33, with one side of the connecting block 33 welded to the drive block 31. The drive screw 32 passes vertically through the connecting block 33 and is rotatably connected to the pallet body around its own axis. The drive screw 32 is threadedly connected to the connecting block 33; rotating the drive screw 32 can move the connecting block 33, which in turn moves the drive block 31. The movement of the drive block 31 can cause one end of the push cylinder 22 to rise or fall, thereby changing the state of the push cylinder 22.

[0057] Reference Figure 3 and Figure 4A guide assembly 4 is provided within the receiving groove 14 to guide one end of the push cylinder 22 to move outward from the receiving groove 14. The guide assembly 4 includes a guide plate 41, and a guide groove 47 is formed on the side wall of the receiving groove 14. The guide plate 41 is slidably connected to the guide groove 47 in the horizontal direction, and the guide plate 41 is located below the push cylinder 22. Sliding the guide plate 41 allows it to be positioned directly below the push cylinder 22. A guide surface 48 is provided on the side of the guide plate 41 near the push cylinder 22, and the guide surface 48 extends vertically downward outward from the receiving groove 14. When the drive block 31 drives the steering component 21 to move downward, the end of the push cylinder 22 near the guide plate 41 abuts against the guide surface 48. Under the action of the guide surface 48, the end of the push cylinder 22 away from the steering component 21 automatically rotates to the outside of the receiving groove 14, thereby automatically changing the push cylinder 22 from a vertical state to a horizontal state. When the end of the push cylinder 22 away from the steering component 21 is outside the receiving groove 14, the guide plate 41 can be controlled to move into the guide groove 47.

[0058] Reference Figure 3 and Figure 4 The guide assembly 4 also includes a connecting rod 43 and a rotating rod 42. One end of the rotating rod 42 is rotatably connected to the support leg 13, and the axis of rotation of the rotating rod 42 is perpendicular to the direction of movement of the guide plate 41. One end of the connecting rod 43 is rotatably connected to the rotating rod 42, and the other end is rotatably connected to the guide plate 41. Rotating the rotating rod 42 can drive the guide plate 41 to move, thereby adjusting the guide plate 41.

[0059] Reference Figure 3 and Figure 4 The guide assembly 4 also includes a connecting shaft 44 and a rocker arm 45. The connecting shaft 44 is rotatably connected to the bracket body 1, and the rotating rod 42 is welded to the connecting shaft 44, realizing the rotatable connection between the rotating rod 42 and the bracket body 1. One end of the rocker arm 45 is welded to the connecting shaft 44, and the other end extends away from the connecting shaft 44 in a direction perpendicular to the axis of the connecting shaft 44. Rotating the rocker arm 45 can drive the rotating rod 42 to rotate, thereby adjusting the position of the guide plate 41.

[0060] Reference Figure 3 and Figure 4 The rotating rod 42 and the connecting shaft 44 are covered with protective shells to reduce damage to the rotating rod 42 or the connecting shaft 44.

[0061] Reference Figure 3 and Figure 4The guide assembly 4 also includes a locking member 46, which limits the rotation of the rocker arm 45. In this embodiment, the locking member 46 is a limiting screw. When the guide plate 41 is in its extreme position (i.e., the guide plate 41 is in its extreme position far from or close to the push cylinder 22), the rocker arm 45 is parallel to the plane of the support leg 13 where the rotating rod 42 is located. A limiting hole is provided through the rocker arm 45 in a direction perpendicular to the rocker arm 45. Two threaded holes are provided on the support leg 13, and the two threaded holes correspond to the positions of the limiting holes on the rocker arm 45 when the guide plate 41 is in the two extreme positions. The locking screw passes through the limiting hole and is then threaded into the threaded hole to limit the rocker arm 45 and improve the stability of the guide plate 41 during use or when idle.

[0062] The implementation principle of the shield tunneling machine head translation and turning device and method in this application embodiment is as follows: When the jacking cylinder 22 changes from a vertical state to a horizontal state, firstly, the rocker arm 45 is rotated, causing the rocker arm 45 to drive the rotating rod 42 to rotate, thereby causing the guide plate 41 to be located below the jacking cylinder 22, that is, at the position where the jacking cylinder 22 can abut against the guide plate 41 during the downward movement. Then, a limit screw is used to pass through the limit hole and threaded into the threaded hole to limit the rotation of the rocker arm 45. At this time, the drive screw 32 is rotated, causing the drive screw 32 to drive the drive block 31 to move downward. During the downward movement of the jacking cylinder 22, the end of the jacking cylinder 22 abuts against the guide plate 41. Under the action of the guide plate 41, the end of the jacking cylinder 22 away from the turning component 21 rotates towards the outside of the receiving groove 14, thereby enabling the jacking cylinder 22 to automatically turn to a horizontal state. At this point, a fixed base 51 is installed on the steel plate to support the jacking cylinder 22, so that when the jacking cylinder 22 extends or retracts, it can drive the bracket body 1 to move or rotate, realizing the movement or turning of the tunnel boring machine. Moreover, there is no need to disassemble the jacking cylinder 22, reducing the workload of the workers and improving construction efficiency.

[0063] This application also discloses a method for translating and turning the head of a tunnel boring machine.

[0064] A method for tunnel boring machine to translate and turn includes:

[0065] S100: Laying and fixing of steel plates

[0066] The steps for laying and fixing the steel plates include:

[0067] S110: The bottom plate of the working shaft (the working shaft here refers to the site where the tunnel boring machine turns around) is leveled with yellow sand or mortar.

[0068] S120: Laying steel plates; the steel plates are staggered, that is, the sides of two adjacent steel plates parallel to their own thickness are staggered on a horizontal square. And the overall height difference of the spliced ​​steel plates is no more than 5mm, so as to facilitate the movement of the bracket body 1.

[0069] S130: Drill holes in the steel plate and the concrete base slab, insert reinforcing bars, and then weld the reinforcing bars to the steel plate.

[0070] S200: Receiver at the tunnel boring machine head.

[0071] The receiving of the tunnel boring machine head includes the following steps:

[0072] S210: The bracket body 1 is hoisted into the working shaft. At this time, the jacking cylinder 22 is in a vertical position. The hydraulic control system controls the extension and retraction of multiple jacking cylinders 22 to change the height of the bracket body 1, so as to facilitate the reception of the tunnel boring machine head.

[0073] S220: After the tunnel boring machine receives the shield, control the jacking cylinder 22 to retract, so that the rolling device at the bottom of the bracket body 1 contacts the steel plate.

[0074] S300: Movement of the tunnel boring machine.

[0075] The movement of the tunnel boring machine includes:

[0076] S310: Change the state of the push cylinder 22 so that the push cylinder 22 is parallel to the ground;

[0077] The steps to change the state of the push cylinder 22 are as follows:

[0078] S311: Adjusting the position of the guide plate 41; rotate the rocker arm 45 so that the rocker arm 45 moves the guide plate 41 out of the guide groove 47 and positions the guide plate 41 below the push cylinder 22. Then, use a limiting screw to pass through the limiting hole on the rocker arm 45 and thread it into the threaded hole on the support leg 13 to limit the rotation of the rocker arm 45 and improve the stability of the guide plate 41 during use.

[0079] S312: Rotating the drive screw 32 controls the drive block 31 to move downwards. The downward movement of the drive block 31 causes the steering component 21 to move downwards, which in turn causes the push cylinder 22 to move downwards. After the push cylinder 22 moves downwards, it abuts against the guide plate 41. Under the action of the guide plate 41, the end of the push cylinder 22 away from the steering component 21 moves outwards from the receiving groove 14. As the drive component continues to move downwards, the push cylinder 22 eventually transitions to a horizontal state.

[0080] S320: Installation of the steering support assembly; weld the mounting base 51 to the steel plate at the position corresponding to the push cylinder 22, and then insert the end of the push cylinder 22 away from the steering component 21 into the rotating housing 52.

[0081] S330: The hydraulic control system controls the extension and retraction of the piston rods of multiple jacking cylinders 22, thereby driving the bracket body 1 and the tunnel boring machine to move.

[0082] S340: Control the retraction rods of the two diagonally opposite push cylinders 22 to retract, then disassemble the rotating support assembly 5, and change the position of the fixed seat 51 to weld it again.

[0083] S350: Repeat steps S320, S330 and S340 until the tunnel boring machine rotates to the designated position.

[0084] S400: Rotation of the tunnel boring machine;

[0085] The rotation of the tunnel boring machine includes the following steps:

[0086] S410: Referring to steps S301, S302 and S303, change the two push cylinders 22 located diagonally from the vertical state to the horizontal state.

[0087] S420: The piston rods of two diagonally opposite push cylinders 22 are extended and retracted by the hydraulic system. The two push cylinders 22 apply opposite forces to the bracket body 1 from both ends of the bracket, thereby driving the bracket body 1 to rotate.

[0088] S430: Control the retraction rods of the two diagonally opposite push cylinders 22 to retract, then disassemble the rotating support assembly 5 and change the position of the fixed seat 51.

[0089] S440: Repeat steps S420 and S430 until the tunnel boring machine rotates to the designated position.

[0090] The implementation principle of the shield machine head translation and turning method in this embodiment is as follows: Rotate the rocker arm 45 to position the guide plate 41 below the jacking cylinder 22, and then control the drive block 31 to move downwards. During the downward movement of the jacking cylinder 22, the end of the jacking cylinder 22 abuts against the guide plate 41. Under the action of the guide plate 41, the end of the jacking cylinder 22 away from the steering component 21 moves towards the outside of the receiving groove 14. As the drive component continues to move downwards, the jacking cylinder 22 changes from a vertical state to a horizontal state. When it is necessary to move the shield machine, the state of the jacking cylinder 22 on one side of the bracket body 1 can be adjusted. Then, a rotating support assembly 5 is installed on the steel plate corresponding to the jacking cylinder 22, and the extension and retraction of the jacking cylinder 22 is controlled to move the bracket body 1. When it is necessary to rotate the shield machine, the jacking cylinder 22 in the diagonal position is controlled to switch to a horizontal state, and then the two jacking cylinders 22 apply opposite forces to the bracket body 1, realizing the rotation and turning of the shield machine.

[0091] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A shield tunneling machine head translation and turning device, comprising a bracket body (1) and multiple jacking cylinders (22), wherein the multiple jacking cylinders (22) are arranged in two groups on both sides of the bracket body (1), characterized in that: It also includes a steering component (21), which is provided in multiple ways corresponding to the push cylinder (22). The steering component (21) is a spherical structure. The steering component (21) is installed on the bracket body (1) and can rotate arbitrarily. One end of the push cylinder (22) is connected to the steering component (21). Rotating the steering component (21) can make the push cylinder (22) be in a vertical or horizontal state. The bracket body (1) has a receiving groove (14) corresponding to the push cylinder (22). The steering component (21) is located in the receiving groove (14). The two parallel side walls of the receiving groove (14) have slots (23). The steering component (21) rotates with the two slots (23). The side of the slot (23) is an arc surface. The axis of the arc surface is perpendicular to the ground. The steering component (21) can slide vertically in the slot (23). The side of the receiving groove (14) away from the ground has a fitting groove (24). The side of the steering component (21) can fit with the side of the fitting groove (24). A drive assembly (3) is provided in the receiving groove (14). The drive assembly (3) includes a drive block (31). The drive block (31) is slidably connected to the side wall of the receiving groove (14) in the vertical direction. A rotating groove (34) is provided on the side wall of the drive block (31) near the steering component (21). The steering component (21) and the rotating groove (34) are rotatably engaged. The drive assembly (3) further includes a drive screw (32), which is rotatably connected to the bracket body (1) about its own axis, and the drive screw (32) is threadedly connected to the drive block (31).

2. The shield tunneling machine head translation and turning device according to claim 1, characterized in that: A guide assembly (4) is provided in the receiving groove (14). The guide assembly (4) includes a guide plate (41). The guide plate (41) is located below the push cylinder (22). A guide groove (47) is provided on the side wall of the receiving groove (14). The guide plate (41) is slidably connected in the guide groove (47) along a horizontal square. Sliding the guide groove (47) can make the guide plate (41) move closer to the push cylinder (22). A guide surface (48) is provided on the guide plate (41). After the push cylinder (22) abuts against the guide surface (48), the guide surface (48) can guide the push cylinder (22) to rotate out of the receiving groove (14).

3. The shield tunneling machine head translation and turning device according to claim 2, characterized in that: The guide assembly (4) further includes a rotating rod (42) and a connecting rod (43). The rotating rod (42) is disposed on one side of the guide plate (41) along the sliding direction of the guide plate (41). The rotating rod (42) is rotatably connected to the bracket body (1), and the rotation axis of the rotating rod (42) is perpendicular to the moving direction of the guide plate (41). One end of the connecting rod (43) is rotatably connected to the rotating rod (42), and the other end is rotatably connected to the guide plate (41).

4. A method for translating and turning a tunnel boring machine (TBM) using the TBM head translation and turning device according to any one of claims 1-3, comprising laying and fixing steel plates; and receiving the TBM; characterized in that: Also includes: Change the state of the jacking cylinder (22) so that the jacking cylinder (22) is parallel to the ground; Connect the push cylinder (22) to the ground / well wall to provide support for the push cylinder (22); Control the extension and retraction of the piston rod of the jacking cylinder (22) until the tunnel boring machine moves / rotates to the designated position.

5. The method according to claim 4, characterized in that, Changing the state of the push cylinder includes the following steps: Adjust the position of the guide plate (41) so that the guide plate (41) is directly below the push cylinder (22); Rotate the drive screw (32) to control the drive block (31) to move down.

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