Shield tunneling machine translation station-crossing device and using method thereof

Abstract

The invention relates to the technical field of shield tunneling machine corollary equipment, in particular to a shield tunneling machine translation station-crossing device and a using method thereof, and the shield tunneling machine translation station-crossing device comprises two supporting frames, two traction assemblies, a position adjusting screw rod and two first position adjusting assemblies. The traction assembly comprises a winding drum, a spiral winding groove is formed in the outer side wall of the winding drum, the inner wall of one end of the winding groove is connected with one end of the traction rope, a position adjusting drum is arranged on the inner side of the winding drum, and threads are arranged on the inner side wall of the position adjusting drum. The directions of threads on the two sides of the position adjusting screw rod are opposite, and the two position adjusting cylinders are connected to different thread sections of the position adjusting screw rod in a screwed mode respectively. When the device is used, the traction rope can be stored in the winding groove, the position of the traction rope is changed under driving of the first position adjusting assembly, it is guaranteed that the traction rope cannot extrude the inner wall of the supporting frame, and the traction rope can enter the supporting frame at a stable speed. The traction rope and the supporting frame are not prone to being damaged, and the stability of the shield tunneling machine during station passing can be guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of shield machine supporting equipment, and specifically relates to a shield machine translation station device and a method for using the same. Background Art

[0002] "Shield machine passing the station" refers to the process in which the shield machine completes the excavation task of one section and then passes through the built station structure to continue excavating the next section in the construction of underground projects such as subways and tunnels. The existing technology can first fix the shield machine on the placement plate, and then complete the shield machine's station passing operation by pulling. For example, the Chinese invention patent with patent application number "CN202420744032.1" provides a shield machine translation device, in which the shield machine is fixed on the placement plate, and the two ends of the steel cable are respectively connected to the winch and the placement plate. When the spiral column rotates, it will drive the winch to rotate together, so that the winch retracts the steel cable, and the steel cable pulls the placement plate and the shield machine to move together.

[0003] A drawback of this device is that the process of receiving the steel cable in the winch actually involves winding the cable around it. Because the winch is located inside the support column, as the number of turns of the cable increases, the cable will not only squeeze against the inner wall of the support column, but also slow down the speed at which the cable enters the support column. Consequently, this device can easily damage the cable and support column, and reduce the stability of the shield machine during transit. Summary of the Invention

[0004] The present invention aims to provide a shield machine translation transit device and its use method. The traction rope can be stored in a reel-up slot and adjusted in position by a first positioning assembly, ensuring that the traction rope does not collide with the inner wall of a support frame and can enter the interior of the support frame at a stable speed. The traction rope and support frame are not easily damaged, ensuring the stability of the shield machine during transit.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: In the first technical solution, a shield machine translation passing station device includes two support frames, and also includes: two traction assemblies, respectively arranged on the inner sides of the two support frames, the traction assembly including a winding drum, a spiral winding groove is provided on the outer wall of the winding drum, the inner wall of one end of the winding groove is connected to one end of the traction rope, a positioning cylinder is provided on the inner side of the winding drum, and a thread is provided on the inner side wall of the positioning cylinder; an adjusting screw is provided between the two support frames, the threads on both sides of the adjusting screw are in opposite directions, and the two adjusting cylinders are respectively screwed on different thread segments of the adjusting screw; two first adjusting assemblies are both provided between the two support frames, for driving the two winding drums to rotate synchronously.

[0006] In the first technical solution, preferably, a second positioning component is provided inside the positioning cylinder, and the second positioning component includes an insert plate, and a slot is provided on the inner wall of the winding cylinder. When the insert plate is embedded in the slot, the winding cylinder and the positioning cylinder can move synchronously.

[0007] In the first technical solution, preferably, there are a plurality of inserting plates, and the plurality of inserting plates are arranged linearly, and an angle is formed between the arrangement direction and the axial direction of the winding drum.

[0008] In the first technical solution, preferably, a third positioning assembly is provided on the inner side of the support frame, and when the plug-in plate is disengaged from the slot, the third positioning assembly can drive the winding drum away from the positioning drum.

[0009] In the first technical solution, preferably, a fourth positioning assembly is provided between the two support frames, and the fourth positioning assembly can drive the positioning screw to move in a vertical direction.

[0010] In the first technical solution, preferably, the fourth positioning assembly includes a positioning plate, a straight section is provided in the middle of the positioning plate, and curved sections are provided at both ends of the positioning plate. The two ends of the positioning screw are respectively fixedly connected to the two ends of the positioning plate, and the first positioning assembly can slide along the middle of the positioning plate.

[0011] In the first technical solution, preferably, a rope-managing assembly is provided on the support frame, and the position of the rope-managing assembly is lower than the winding drum. The rope-managing assembly includes two arc-shaped partitions, and the two arc-shaped partitions can be combined to form a ring structure. The outer side wall of any one of the arc-shaped partitions is connected to the ring.

[0012] In the second technical solution, a method for using a shield machine translation passing station device, using the shield machine translation passing station device as described in the first technical solution, includes the following steps: step 1, connecting the traction rope to the placement plate, and installing the shield machine on the placement plate; step 2, the first positioning component works, driving the winding drum to rotate on the positioning screw, so that the traction rope gradually enters the winding groove, and the traction rope pulls the placement plate to move along the track, so that the shield machine moves along with the placement plate, and the two winding drums move away from each other while rotating, so that the distance between the traction rope close to the winding drum and the support frame remains unchanged; step 3, the fourth positioning component works, driving the positioning screw to move downward, and the positioning screw drives the winding drum to move downward together, so that the angle between the traction rope and the horizontal plane remains unchanged; step 4, when the shield machine completes the translation passing station, the traction rope is removed from the placement plate.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] (1) When in use, the present invention allows the traction rope to be stored in the reeling slot and to change position under the drive of the first position adjustment component, ensuring that the traction rope does not collide with the inner wall of the support frame and can enter the interior of the support frame at a stable speed. The traction rope and the support frame are not easily damaged, ensuring the stability of the shield machine during transit.

[0015] (2) In the present invention, a second positioning assembly is provided inside the positioning cylinder. This second positioning assembly can change the connection between the take-up cylinder and the positioning cylinder. When the insert plate is inserted into the slot, the take-up cylinder and the positioning cylinder can move synchronously, and the take-up cylinder cannot be separated from the positioning cylinder. When the insert plate is removed from the slot, the take-up cylinder can be separated from the positioning cylinder and can move independently.

[0016] (3) The present invention also includes a fourth positioning assembly that drives the positioning screw downward, which in turn drives the take-up drum and the positioning drum downward. This maintains the angle between the traction rope and the horizontal plane, minimizing unnecessary tension and reducing the burden on the traction assembly, thereby increasing its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 An axonometric view of the present invention at one angle;

[0018] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0019] Figure 3 It is an axonometric drawing of the present invention from another angle;

[0020] Figure 4 This is an axonometric view of the support frame and rope management assembly of the present invention;

[0021] Figure 5 It is an axonometric view of the traction assembly of the present invention;

[0022] Figure 6 This is a front cross-sectional view of the take-up drum in the present invention;

[0023] Figure 7 This is a front sectional view of the positioning tube in the present invention;

[0024] Figure 8 A top view of two second position adjustment components in the present invention;

[0025] Figure 9 This is an axonometric view of the positioning screw in the present invention;

[0026] Figure 10 This is an axonometric view of the first positioning assembly of the present invention;

[0027] Figure 11 This is an axonometric view of the third positioning assembly of the present invention;

[0028] Figure 12 This is an axonometric view of the fourth positioning assembly in the present invention.

[0029] Reference numerals include:

[0030] 1-support frame, 11-storage chamber, 2-traction assembly, 21-rewinding drum, 211-rewinding slot, 212-slot, 213-first convex ring, 214-second convex ring, 22-traction rope, 23-positioning cylinder, 231-avoidance, 24-second positioning assembly, 241-plug plate, 242-driving rod, 243-second motor, 3-positioning screw, 4-first positioning assembly, 41-first gear, 42-second gear Wheel, 43-first motor, 44-cross plate, 45-support rod, 46-limiting collar, 47-moving frame, 5-third adjustment component, 51-first electric telescopic rod, 52-traction plate, 6-fourth adjustment component, 61-adjustment plate, 611-straight section, 612-zigzag section, 62-second electric telescopic rod, 7-rope management component, 71-arc partition, 72-collar, 73-adjustment rotating rod, 8-placement plate, 9-track. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] See also Figure 1-12The present invention provides a technical solution: a shield machine translation station device, comprising two support frames 1, two traction assemblies 2, a positioning screw 3 and two first positioning assemblies 4. The traction assembly 2 comprises a winding drum 21, a traction rope 22 and a positioning drum 23. A winding groove 211 is provided on the outer wall of the winding drum 21, and a thread is provided on the inner wall of the positioning drum 23. The positioning drum 23 is screwed onto the positioning screw 3. The two support frames 1 are connected by a reinforcement plate to enhance the stability of the present invention. A controller is provided on the reinforcement plate to control the various components of the present invention. When the present invention is in use, the two traction ropes 22 are first connected to the placement plate 8, and then the two first positioning assemblies 4 work to drive the two winding drums 21 to rotate synchronously in the forward direction. At this time, the traction rope 22 is gradually received in the spiral winding groove 211, and the traction rope 22 will not protrude from the outer surface of the winding drum 21. Under the pulling force of the two traction ropes 22, the placement plate 8 moves along the track 9 and drives the shield machine to complete the operation of horizontal movement through the station.

[0033] See also Figure 1-9 , the positioning drum 23 can rotate synchronously with the winding drum 21, so the positioning drum 23 will move horizontally along the positioning screw 3 when rotating. The thread directions on both sides of the positioning screw 3 are opposite, so the two positioning drums 23 will move away from each other, thereby driving the two winding drums 21 to move away from each other. Since the traction rope 22 will continue to be wound around the winding drum 21, the winding drum 21 moves in the horizontal direction, which can ensure that the part of the traction rope 22 that has not yet entered the winding groove 211 is always in the middle position inside the support frame 1. There is a gap between the traction rope 22 and the inner wall of the support frame 1, so it will not be squeezed with the support frame 1. The part of the traction rope 22 that has entered the winding groove 211 will move with the winding drum 21. Even if one end of the winding drum 21 moves to the outside of the support frame 1, the traction rope 22 will not be squeezed with the support frame 1. When the present invention is in use, the traction rope 22 can be wound around the winding drum 21 at a stable speed. The traction rope 22 and the support frame 1 are not easily damaged, which can ensure the stability of the shield machine when passing through the station.

[0034] Example 1

[0035] See also Figure 1-10 In this embodiment, the first position adjustment assembly 4 includes a first gear 41, a second gear 42, a first motor 43, a horizontal plate 44, a support rod 45, and a limiting collar 46. The first gear 41 is fixedly mounted on the outer wall of the winding drum 21. The second gear 42 is connected to the output end of the first motor 43. The first motor 43 is fixedly mounted on the horizontal plate 44, and the second gear 42 meshes with the first gear 41 for transmission. The horizontal plate 44 is fixedly connected to the limiting collar 46 via the support rod 45. A first protruding ring 213 is provided on the outer wall of the winding drum 21, and the limiting collar 46 is sleeved on the outer surface of the first protruding ring 213.

[0036] See also Figure 1-10 When the first positioning assembly 4 is operating, the first motor 43 drives the second gear 42 to rotate, which in turn drives the first gear 41 to rotate. The first gear 41 then drives the take-up drum 21 and the positioning drum 23 to rotate synchronously, causing the take-up drum 21 and the positioning drum 23 to move horizontally. When the positioning drum 23 moves, the first protruding ring 213 slides along the inner wall of the limiting collar 46, driving the limiting collar 46 to move horizontally. The limiting collar 46 then drives the cross plate 44 to move along with it via the support rod 45. The cross plate 44 drives the second gear 42 and the first motor 43 to move together, preventing the second gear 42 from disengaging from the first gear 41, thus ensuring the operational stability of the first positioning assembly 4.

[0037] Example 2

[0038] See also Figure 1-10 In this embodiment, a second positioning assembly 24 is installed inside the positioning cylinder 23. The second positioning assembly 24 includes an inserting plate 241. A slot 212 is provided on the inner sidewall of the take-up cylinder 21. The second positioning assembly 24 can change the connection between the take-up cylinder 21 and the positioning cylinder 23. When the inserting plate 241 is inserted into the slot 212, the take-up cylinder 21 and the positioning cylinder 23 can move synchronously, and the take-up cylinder 21 cannot be separated from the positioning cylinder 23. When the inserting plate 241 is removed from the slot 212, the take-up cylinder 21 can be separated from the positioning cylinder 23, and the take-up cylinder 21 can move independently.

[0039] See also Figure 1-10 The second positioning assembly 24 also includes a driving rod 242 and a second motor 243. The driving rod 242 is connected to the output end of the second motor 243. The second motor 243 is fixedly mounted on the side wall inside the positioning cylinder 23, and the insert plate 241 is fixedly mounted on the side wall of the driving rod 242. When the second positioning assembly 24 is working, if the second motor 243 drives the driving rod 242 to rotate forward, the insert plate 241 passes through the avoidance opening 231 on the side wall of the positioning cylinder 23 and is embedded in the slot 212. The insert plate 241 cooperates with the slot 212 to limit the winding drum 21, and the winding drum 21 does not produce relative displacement with the positioning cylinder 23. Therefore, when the winding drum 21 rotates, it can drive the positioning cylinder 23 to rotate together. When the positioning cylinder 23 moves horizontally, it can drive the winding drum 21 to move together.

[0040] See also Figure 1-10If the second motor 243 drives the driving rod 242 to reverse, the insert plate 241 can disengage the slot 212 and the avoidance opening 231 and return to the interior of the positioning cylinder 23, and the winding drum 21 is no longer restricted. The winding drum 21 can rotate independently or move horizontally. When the shield machine completes the translation operation of the station, the second positioning assembly 24 is activated, causing the insert plate 241 to disengage the slot 212. The winding drum 21 can then be controlled to rotate in the opposite direction while sliding along the outer surface of the positioning cylinder 23. The two winding drums 21 will move closer, and the traction rope 22 wrapped around the winding drum 21 will be released and leave the winding slot 211. Because the winding drum 21 and the positioning cylinder 23 are not threaded, the speed of the winding drum 21 when rotating independently is greater than the speed of the winding drum 21 and the positioning cylinder 23 when rotating synchronously. The traction rope 22 can quickly leave the winding drum 21, making it easier to connect the traction rope 22 to the placement plate 8 when it is used next. The two take-up drums 21 will move closer together, ensuring that there is still a gap between the traction rope 22 and the inner wall of the support frame 1. During the release process, the traction rope 22 will not be squeezed against the support frame 1. The traction rope 22 and the take-up drum 21 are detachably connected. After removing the traction rope 22, resetting the take-up drum 21 and the adjustment drum 23, and then reinstalling the traction rope 22, you can wait for the next shield machine translation operation.

[0041] See also Figure 1-10 In this embodiment, two second positioning assemblies 24 are provided, one at the top and one at the bottom of the positioning cylinder 23. There are multiple inserting plates 241, with an angle between adjacent inserting plates 241. This ensures that each inserting plate 24 does not interfere with the inner wall of the positioning cylinder 23 when positioned within it. The two driving rods 242 form an X-shaped structure, and the inserting plates 241 are arranged linearly at an angle to the axis of the take-up drum 21. This creates an arc-shaped slot 212. When the driving rods 242 rotate, inserting plates 241 into slots 212, the take-up drum 21 is subjected to multiple forces, enhancing its stability during rotation and movement.

[0042] See also Figure 1-11In this embodiment, a third positioning assembly 5 is provided on the inner side of the support frame 1. The third positioning assembly 5 includes a first electric telescopic rod 51 and a traction plate 52. The traction plate 52 is connected to the output end of the first electric telescopic rod 51. A second protruding ring 214 is also provided on the outer wall of the winding drum 21. The second protruding ring 214 is located on the side away from the first protruding ring 213. The traction plate 52 has a U-shaped structure. The second protruding ring 214 extends into the inner side of the traction plate 52 and has a gap between it and the inner wall of the traction plate 52. When the insert plate 241 is inserted into the slot 212 and the winding drum 21 and the positioning drum 23 rotate and move together to tighten the traction rope 22, the output end of the first electric telescopic rod 51 shortens, driving the traction plate 52 to move, so that the traction plate 52 and the second protruding ring 214 always maintain a certain distance and do not contact each other. When the insert plate 241 is released from the slot 212 and the take-up drum 21 rotates in the opposite direction, the output end of the first electric telescopic rod 51 extends, driving the traction plate 52 to move. After the traction plate 52 contacts the second protruding ring 214, it pushes the second protruding ring 214 to move, thereby driving the take-up drum 21 to move, ensuring that the traction rope 22 does not squeeze the support frame 1 during the release process. After the traction rope 22 is removed, the output end of the first electric telescopic rod 51 shortens, and the traction plate 52 pulls the second protruding ring 214 and the take-up drum 21 back to align with the positioning drum 23, facilitating the repositioning of the take-up drum 21 and the positioning drum 23.

[0043] Example 3

[0044] See also Figure 1-12 The present invention also includes a fourth positioning assembly 6. During the process of pulling the placement plate 8 with the traction rope 22, the traction rope 22 maintains a 45° angle with the horizontal plane. The fourth positioning assembly 6 drives the positioning screw 3 downward, which in turn drives the take-up drum 21 and the positioning drum 23 downward. Maintaining a constant angle between the traction rope 22 and the horizontal plane minimizes unnecessary tension, reduces the burden on the traction assembly 2, and increases its service life.

[0045] See also Figure 1-12 The fourth positioning assembly 6 includes a positioning plate 61 and a second electric telescopic rod 62. The positioning plate 61 is connected to the output end of the second electric telescopic rod 62, which is fixedly connected to the support frame 1. Extending the output end of the second electric telescopic rod 62 drives the positioning plate 61 upward, while shortening the output end of the second electric telescopic rod 62 drives the positioning plate 61 downward.

[0046] See also Figure 1-12The middle of the positioning plate 61 is provided with a straight section 611, and both ends of the positioning plate 61 are provided with a curved section 612. The first electric telescopic rod 51 is fixedly mounted on the top of the positioning plate 61. The first positioning assembly 4 also includes a movable frame 47, which is fixedly connected to the transverse plate 44 and is sleeved on the straight section 611. When the limiting collar 46 drives the transverse plate 44 to move in the horizontal direction, the movable frame 47 slides along the outer surface of the straight section 611, ensuring that the first positioning assembly 4 can move stably in a straight line. When the winding drum 21 rotates, it will not cause the first positioning assembly 4 to deflect. The curved section 612 has a Z-shaped structure, which not only leaves sufficient installation space for the positioning screw 3, but also leaves sufficient movement space for the winding drum 21 and the positioning drum 23. The winding drum 21 will not interfere with the positioning plate 61.

[0047] Example 4

[0048] See also Figure 1-12 The present invention also includes a rope-managing assembly 7, which includes two arc-shaped partitions 71, a collar 72, and two positioning rods 73. The two positioning rods 73 are both rotatably connected to the support frame 1, and the two arc-shaped partitions 71 are respectively arranged in the middle of the two positioning rods 73, and the collar 72 is arranged on the outer wall of any arc-shaped partition 71. Before the traction rope 22 pulls the placement plate 8 to move, the two positioning rods 73 are rotated to separate the two arc-shaped partitions 71, and the rope-managing assembly 7 will not hinder the movement of the traction rope 22. When the shield machine completes the operation of translating through the station, first remove the end of the traction rope 22 connected to the placement plate 8. Then rotate the two positioning rods 73 so that the two arc-shaped partitions 71 are enclosed to form a ring structure. Ensure that the traction rope 22 is inside the ring structure. A hook is provided at the bottom of the traction rope 22, and the hook is hung on the ring 72. At this time, the two arc-shaped partitions 71 are above the storage cavity 11 at the bottom of the support frame 1.

[0049] See also Figure 1-12 , then the second positioning assembly 24 works, and the winding drum 21 is no longer restricted. Then the first positioning assembly 4 and the third positioning assembly 5 work together to drive the winding drum 21 to rotate in the opposite direction and move laterally, thereby releasing the traction rope 22. After being released, the traction rope 22 will not be thrown away due to the restriction of the arc-shaped partition 71, but will fall smoothly downward and enter the storage chamber 11, where it will be temporarily stored and wait for subsequent operations. The traction rope 22 is provided with a hook. One end of the traction rope is hung on the ring 72, so it will not be buried in the middle of the traction rope 22, ensuring that the traction rope 22 will not be knotted. When the traction rope 22 is completely released and the winding drum 21 and the positioning drum 23 are reset, the hook is removed from the ring 72, and all the traction ropes 22 can be smoothly pulled out from the storage chamber 11, making it convenient to continue the shield machine's translation and passing station operation next time.

[0050] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0051] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A shield machine translation station device, comprising two support frames, characterized in that: Also includes: Two traction assemblies are respectively arranged on the inner sides of the two support frames, and the traction assemblies include a winding drum, a spiral winding groove is provided on the outer wall of the winding drum, the inner wall of one end of the winding groove is connected to one end of the traction rope, and a position adjustment cylinder is provided on the inner side of the winding drum, and a thread is provided on the inner side wall of the position adjustment cylinder; An adjusting screw is provided between the two support frames, the threads on both sides of the adjusting screw are in opposite directions, and the two adjusting cylinders are respectively screwed onto different thread segments of the adjusting screw; The two first position adjustment components are both arranged between the two support frames and are used to drive the two winding drums to rotate synchronously.

2. The shield machine translation passing station device according to claim 1, characterized in that: A second positioning assembly is provided inside the positioning cylinder. The second positioning assembly includes an inserting plate. A slot is provided on the inner side wall of the winding cylinder. When the inserting plate is inserted into the slot, the winding cylinder and the positioning cylinder can move synchronously.

3. The shield machine translation passing station device according to claim 2, characterized in that: There are a plurality of inserting plates, which are arranged linearly, and an angle is formed between the arrangement direction and the axis direction of the winding drum.

4. The shield machine translation passing station device according to claim 2, characterized in that: A third position adjustment component is provided on the inner side of the support frame. When the plug-in plate is disengaged from the slot, the third position adjustment component can drive the winding drum away from the position adjustment drum.

5. The shield machine translation station device according to claim 1, characterized in that: A fourth positioning assembly is provided between the two support frames, and the fourth positioning assembly can drive the positioning screw to move in a vertical direction.

6. The shield machine translation passing station device according to claim 5, characterized in that: The fourth positioning assembly includes a positioning plate, a straight section is provided in the middle of the positioning plate, and curved sections are provided at both ends of the positioning plate. The two ends of the positioning screw are respectively fixedly connected to the two ends of the positioning plate, and the first positioning assembly can slide along the middle of the positioning plate.

7. The shield machine translation station device according to claim 1, characterized in that: The support frame is provided with a rope management assembly, which is located lower than the winding drum. The rope management assembly includes two arc-shaped partitions, which can be combined to form a ring structure. The outer side wall of any one of the arc-shaped partitions is connected to the ring.

8. A method for using a shield machine translation station device, using the shield machine translation station device according to claim 5, characterized in that: The following steps are involved: Step 1: Connect the traction rope to the placement plate and install the shield machine on the placement plate; Step 2: The first positioning assembly works to drive the winding drum to rotate on the positioning screw, so that the traction rope gradually enters the winding groove, and the traction rope pulls the placement plate to move along the track, so that the shield machine moves along with the placement plate. The two winding drums move away from each other while rotating, so that the distance between the end of the traction rope close to the winding drum and the support frame remains unchanged; Step 3: The fourth positioning assembly works to drive the positioning screw to move downward, and the positioning screw drives the winding drum to move downward together, so that the angle between the traction rope and the horizontal plane remains unchanged; Step 4: After the shield machine has completed its translation through the station, the traction rope is removed from the placement plate.

Images