Continuous propulsion and segment installation structure of shield tunneling machine

Abstract

The invention relates to the technical field of tunnel excavation, and particularly discloses a shield tunneling machine continuous propelling and duct piece mounting structure which comprises a shield body, a continuous driving mechanism used for continuous excavation is arranged on the shield body, and an assembling mechanism used for mounting duct pieces is arranged behind the continuous driving mechanism; the continuous driving mechanism comprises a front driving assembly and a rear driving assembly, the front driving assembly is connected with the shield body, and the rear driving assembly is located between the front driving assembly and the splicing mechanism; the front driving assembly comprises a first fixing ring, the first fixing ring is fixedly connected to the shield body, and a plurality of sets of first hydraulic cylinders are arranged on the first fixing ring; the rear drive assembly comprises a second fixing ring, the multiple sets of first hydraulic cylinders are fixedly connected to the second fixing ring, and a supporting assembly used for enabling the rear drive assembly to be evenly stressed is arranged in the second fixing ring. The technical problems that a shield tunneling machine cannot excavate a soil body and install a duct piece at the same time, time cannot be reasonably utilized, and the efficiency of tunnel excavation is affected are solved.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel excavation, and specifically discloses a shield machine continuous advancement and segment installation structure. Background Art

[0002] A shield machine is a large-scale machine used to dig underground tunnels. It integrates optical, mechanical, electrical, hydraulic, sensor and information technologies and contains a variety of advanced technologies. When digging, the shield machine has the advantages of not hindering traffic, not making noise and not requiring large-scale demolition. The shield machine is divided into two parts, one is for digging soil and the other is for installing segments. A cutter head is installed at the front end of the shield and a propulsion system is installed at the rear of the shield to complete the excavation and construction of the tunnel, which increases the efficiency of tunnel digging by 8-10 times compared to traditional methods.

[0003] For example, the invention patent with application number 2021105714987 discloses a fully automated shield machine propulsion device, including: a shield support, a rotating excavation structure and a propulsion structure are installed in the shield support, and an excavation structure is installed on the rotating excavation structure; the rotating excavation structure includes: a concave rotating box, a rotating inner ring clamp, a rotating drive machine, a rotating drive gear, a concave rotating limit outer box, a plurality of rotating ring slideways with the same structure, and a plurality of rotating arc sliders with the same structure; the existing shield machine cannot excavate the soil and install the pipe segments at the same time, which results in the shield machine having to stop moving when installing the pipe segments, thereby wasting time and affecting the efficiency of tunnel excavation. Summary of the invention

[0004] In view of this, the purpose of the present invention is to provide a shield machine continuous advancement and segment installation structure to solve the technical problem that the shield machine cannot excavate soil and install segments at the same time, cannot reasonably utilize time, and affects the efficiency of tunnel excavation.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a shield machine continuous propulsion and segment installation structure, comprising a shield body, a continuous driving mechanism for continuous excavation is arranged on the shield body, and an assembly mechanism for installing segments is arranged behind the continuous driving mechanism; the continuous driving mechanism comprises a front drive assembly and a rear drive assembly, the front drive assembly is connected to the shield body, and the rear drive assembly is located between the front drive assembly and the assembly mechanism; the front drive assembly comprises a first fixing ring, the first fixing ring is fixedly connected to the shield body, and a plurality of groups of first hydraulic cylinders are arranged on the first fixing ring; the rear drive assembly comprises a second fixing ring, and a plurality of groups of the first hydraulic cylinders are fixedly connected to the second fixing ring, and a support assembly for making the rear drive assembly evenly stressed is arranged in the second fixing ring. The shield body is moved by the continuous driving mechanism, so that the shield body can install segments while excavating, thereby improving the efficiency of tunnel construction.

[0006] Further, the rear drive assembly includes several groups of second hydraulic cylinders and several groups of third hydraulic cylinders, several groups of the second hydraulic cylinders and several groups of the third hydraulic cylinders are staggered with each other, several groups of the second hydraulic cylinders are provided with first matching blocks, and several groups of the third hydraulic cylinders are provided with second matching blocks; the cross-sections of the first matching blocks and the second matching blocks are both "convex" shaped, and several groups of the first matching blocks and several groups of the second matching blocks are staggered with each other to form a complete ring; several groups of the first matching blocks and several groups of the second matching blocks are in contact with the pipe segment. Through the rear drive assembly, the shield can be pushed to move.

[0007] Furthermore, the support assembly includes a third fixed ring, on which a plurality of groups of first connecting rods are arranged, and the plurality of groups of first connecting rods are fixedly connected to the second fixed ring, on which a rotatable outer tooth ring is arranged, and on which a rotatable inner tooth ring is arranged, and on which a movable frame is fixedly connected, a connecting frame is arranged on the movable frame, and one end of the connecting frame is slidably mounted on the third fixed frame; a sliding groove is provided on the movable frame, and a support block is slidably mounted in the sliding groove, and a scissor-type lifting device is arranged at the bottom of the sliding groove, and the other end of the scissor-type lifting device is fixedly connected to the support block. Through the cooperation of the first matching block, the second matching block and the support assembly, it is possible to ensure that the force on the rear drive assembly is always uniform when installing the pipe segment, and to prevent the shield body from shifting in the moving direction due to uneven force.

[0008] Furthermore, the second fixing ring is provided with four sets of fixing platforms, each of which is provided with a driving motor, and each of which is provided with a first gear at the output end of the four sets of driving motors; two sets of the first gears are meshed with the inner gear ring, and the other two sets of the first gears are meshed with the outer gear ring. The outer gear ring and the inner gear ring are driven to rotate by the driving motor, and the outer gear ring and the inner gear ring respectively drive the corresponding supporting components to move, so that when installing the pipe segment at any position, the force of the rear drive component can be uniform.

[0009] Furthermore, the assembly mechanism includes a support beam, on which a pipe segment rotating device and a pipe segment moving device are arranged, the pipe segment rotating device can only rotate on the support beam, and the pipe segment moving device can rotate and move on the support beam; the pipe segment moving device and the pipe segment rotating device are both provided with two groups of connecting grooves, wherein two groups of connecting grooves are slidably mounted with connecting blocks, the two groups of connecting blocks are respectively located in the pipe segment moving device and the pipe segment rotating device, and the connecting blocks are provided with connecting components; the connecting blocks are provided with a lifting cylinder, and the lifting cylinder is provided with a vacuum suction cup. The assembly mechanism moves the pipe segment to a designated position through the pipe segment moving device, the lifting cylinder and the vacuum suction cup, and then the staff installs the pipe segment, and at the same time, the two groups of vacuum suction cups cooperate with each other, so that the pipe segment can be installed while being adsorbed, which saves the time for installing the pipe segment and improves the efficiency of installing the pipe segment.

[0010] Furthermore, the connection assembly includes a second gear, on which two groups of racks are meshed, the two groups of racks are parallel, and the two groups of racks are respectively provided with a first fixed block and a second fixed block, and the other ends of the first fixed block and the second fixed block are provided with a limit block, and the two groups of limit blocks are respectively located at the two ends of the connection block, and a fifth hydraulic cylinder is fixedly connected in the connection block, and the telescopic end of the fifth hydraulic cylinder is fixedly connected to the first fixed block; the first gear is rotatably connected to the connection block, and the two groups of racks, the first fixed block, the second fixed block and the two groups of limit blocks are respectively slidably clamped in the connection block. The connection assembly can control whether the connection block is connected to the fourth hydraulic cylinder or to the pipe segment rotating device, and the connection assembly plays a role of preliminary fixing, so that the two groups of vacuum suction cups can perform their respective functions and cooperate with each other to achieve the purpose of saving time.

[0011] Furthermore, two groups of rotating hydraulic cylinders are provided in the segment moving device, and the two groups of rotating hydraulic cylinders are provided with second connecting rods and clamping blocks. Two groups of clamping slots are provided in the segment moving device, and the two groups of clamping slots are respectively connected with the two groups of connecting slots, and the two groups of clamping blocks are respectively slidably clamped in the two groups of clamping slots; one group of clamping blocks is located in the connecting slot, and the other group of clamping blocks is completely separated from the connecting slot; the two side walls of the two groups of connecting slots are provided with third limiting slots, and the two groups of limiting blocks are respectively clamped in the two corresponding third limiting slots. The clamping blocks can fix the connecting blocks on the segment rotating device, thereby tightly fixing the vacuum suction cup with the segment to the segment rotating device, which is convenient for the staff to install the segment later.

[0012] Furthermore, the segment rotating device is provided with two groups of fourth hydraulic cylinders, and the telescopic ends of the two groups of fourth hydraulic cylinders are respectively installed in the two groups of connecting grooves; the telescopic ends of the fourth hydraulic cylinders are provided with two groups of second limiting grooves, and the two groups of limiting blocks are respectively clamped in the two groups of second limiting grooves. After the connecting block is fixedly connected to the fourth hydraulic cylinder through the connecting assembly, the fourth hydraulic cylinder can drive the connecting block, the lifting cylinder and the vacuum suction cup to move, so as to achieve the purpose of quickly installing the segment on the segment moving device, and at the same time, the vacuum suction cup without the segment is moved to the segment rotating device, and another group of segments is adsorbed on the vacuum suction cup.

[0013] The working principle and beneficial effects of this solution are: When in use, the staff first drives the shield body forward to dig through the rear drive assembly. When a space capable of installing a ring of segments is excavated, the rear drive assembly is stopped, and the shield body is driven forward to dig through the front drive assembly. Then, the second hydraulic cylinder and the third hydraulic cylinder where the segments need to be installed are retracted to vacate the position where the segments need to be installed. At this time, two groups of first matching blocks are separated from the corresponding two groups of second matching blocks. Then, the staff places a support block between the first matching block and the second matching block through the support assembly to prevent uneven force on the rear drive assembly when the front drive assembly pushes the shield body, thereby causing deviation in the excavation direction. Then the staff uses the assembly mechanism to install the segments. After a ring of segments is installed, the staff controls the front drive component to retract, and at the same time makes the rear drive component drive the shield to move. It is necessary to ensure that the moving speed of the shield remains unchanged at all times, so that the installation of segments and tunnel excavation can be carried out at the same time, and the moving speed and direction of the shield can be controlled at all times, so that the quality of excavation will not be affected by the installation of segments, thereby improving the excavation efficiency.

[0014] When workers use the assembly mechanism to install the segments, they can install one set of segments at the specified position while adsorbing another set of segments on another set of vacuum suction cups, thereby saving a certain amount of time and improving the efficiency of installing the segments, so that the efficiency of segment installation can match the efficiency of tunnel excavation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of an embodiment; Figure 2 is a side view of an embodiment; Figure 3 It is a structural schematic diagram of the continuous driving mechanism in the embodiment; Figure 4 It is a structural schematic diagram of the assembling mechanism in the embodiment; Figure 5 This is an enlarged schematic diagram of region A in the embodiment; Figure 6It is a structural schematic diagram of the support assembly in the embodiment; Figure 7 is a side view of a support assembly in an embodiment; Figure 8 It is a structural schematic diagram of the connection component in the embodiment; Fig. 9 This is an enlarged schematic diagram of region B in the embodiment; Fig.10 Schematic diagram of the internal structure of the movable frame in the embodiment; Fig.11 It is a schematic diagram of the structure when the support assembly in the embodiment is used.

[0016] The markings in the accompanying drawings are as follows: shield body 1, tube segment 4; A first fixing ring 201, a first hydraulic cylinder 202, a second fixing ring 203, a second hydraulic cylinder 204, a third hydraulic cylinder 205, a first matching block 206, and a second matching block 207; Inner gear ring 301, outer gear ring 302, third fixed ring 303, first connecting rod 304, driving motor 305, first gear 306, fixed platform 307, movable frame 308, connecting frame 309, first limiting groove 310, first limiting block 311; Support beam 501, segment rotating device 502, segment moving device 503, vacuum suction cup 504, lifting cylinder 505, connecting block 506, connecting groove 507, fourth hydraulic cylinder 508, second limiting groove 509, clamping block 510, second connecting rod 511, rotating hydraulic cylinder 512, clamping groove 513, third limiting groove 514; A second gear 601, a rack 602, a first fixing block 603, a second fixing block 604, a second limiting block 605, a fixing hole 606, and a fifth hydraulic cylinder 607; Sliding groove 701 , scissor-type lifting device 702 , and supporting block 703 . DETAILED DESCRIPTION

[0017] The following is further described in detail through specific implementation methods: Example like Figures 1 to 11 As shown, a shield machine continuous propulsion and segment installation structure is disclosed, including a shield body 1, on which a continuous drive mechanism is arranged, the continuous drive mechanism includes a front drive assembly and a rear drive assembly, the front drive assembly is fixedly connected to the rear drive assembly, and the front drive assembly is fixedly connected to the shield body 1.

[0018] The front drive assembly includes a first fixed ring 201, on which a plurality of groups of first hydraulic cylinders 202 are arranged, and the plurality of groups of first hydraulic cylinders 202 are evenly distributed in a ring shape on the first fixed ring 201; The rear drive assembly includes a second fixed ring 203, and the telescopic ends of several groups of first hydraulic cylinders 202 are fixedly connected to the second fixed connection. Several groups of second hydraulic cylinders 204 and several groups of third hydraulic cylinders 205 are arranged on the second fixed ring 203. Several groups of second hydraulic cylinders 204 and several groups of third hydraulic cylinders 205 are distributed in an annular shape on the second fixed ring 203. Several groups of second hydraulic cylinders 204 and several groups of third hydraulic cylinders 205 are staggered. Several groups of second hydraulic cylinders 204 telescopic ends are all provided with first matching blocks 206, and several groups of third hydraulic cylinders 205 telescopic ends are all provided with second matching blocks 207. , the cross-sections of the first matching block 206 and the second matching block 207 are similar to the shape of a "convex" character, several groups of first matching blocks 206 and several groups of second matching blocks 207 are arc-shaped, the size of the first matching block 206 is larger than the size of the second matching block 207, several groups of first matching blocks 206 and several groups of second matching blocks 207 can form a complete ring, the second matching block 207 can prevent the first matching block 206 from moving away from the second fixing ring 203, and the first matching block 206 can prevent the second matching block 207 from moving toward the second fixing ring 203; as Figures 1 to 3 shown.

[0019] A support assembly is arranged in the second fixed ring 203, and the support assembly includes a third fixed ring 303, on which a plurality of groups of first connecting rods 304 are arranged, and the plurality of groups of first connecting rods 304 are fixedly connected to the second fixed ring 203, and a rotatable inner tooth ring 301 is arranged on the second fixed ring 203, and the inner tooth ring 301 is slidably mounted on the second fixed ring 203, and a rotatable outer tooth ring 302 is arranged on the third fixed ring 303, and the outer tooth ring 302 is slidably mounted on the third fixed ring 303, and a movable frame 308 is fixedly connected to the inner tooth ring 301 and the outer tooth ring 302, and a sliding groove 701 is provided in the movable frame 308, and a support block 703 is slidably mounted in the sliding groove 701, and a scissor-type lifting device is arranged between the support block 703 and the bottom end of the sliding groove 701 Device 702, one end of the scissor-type lifting device 702 is fixedly connected to the bottom end of the sliding groove 701, and the other end is fixedly connected to the support block 703; two groups of first gears 306 are meshed on the outer gear ring 302 and the inner gear ring 301, and the four groups of first gears 306 are provided with a driving motor 305, and the output shaft of the driving motor 305 is fixedly connected to the first gear 306, and the second fixed ring 203 is fixedly connected with four groups of fixed platforms 307, and the four groups of driving motors 305 are respectively fixedly connected to the four groups of fixed platforms 307 by bolts, and the two groups of movable frames 308 are provided with a connecting frame 309, and the connecting frame 309 is provided with a first limiting groove 310, and the third inner gear ring 301 is provided with a first limiting block 311, and the two groups of first limiting grooves 310 are slidably mounted on the first limiting block 311, such as Figure 6 and Figure 7As shown; wherein the scissor-type lifting device 702 is used to move the position of the support block 703, the scissor-type lifting device 702 is a technical means commonly used by technicians in the field, and its structure, connection method and use method are all well known to those skilled in the art.

[0020] An assembling mechanism for installing the pipe segment 4 is arranged behind the second fixing ring 203, and the assembling mechanism includes a support beam 501, on which a pipe segment rotating device 502 and a pipe segment moving device 503 are arranged, the pipe segment rotating device 502 includes a rotating frame, and the pipe segment moving device 503 includes a rotating frame and a moving frame, and two groups of connecting grooves 507 are opened on the pipe segment rotating device 502 and the pipe segment moving device 503, wherein connecting blocks 506 are slidably mounted in the two groups of connecting grooves 507, and a lifting cylinder 505 is arranged on the connecting block 506, and a vacuum suction cup 504 is arranged on the lifting cylinder 505; Figure 4 As shown, the support beam 501, the rotating frame, the mobile frame, the lifting cylinder 505 and the vacuum suction cup 504 are all technical means commonly used by technicians in this field, and their structures, connection methods and usage methods are all technologies well known to technicians in this field.

[0021] A connecting assembly is provided in the connecting block 506, and the connecting assembly includes a second gear 601, and the second gear 601 is rotatably connected to the connecting block 506. Racks 602 are provided on both sides of the second gear 601. The two sets of racks 602 are meshed with the second gear 601. The two sets of racks 602 are parallel. The two sets of racks 602 are respectively provided with a first fixed block 603 and a second fixed block 604. The first fixed block 603 and the second fixed block 604 are both provided with a second limit block 605. The two sets of second limit blocks 605 are parallel and located at the same level. In the plane, the two groups of second limit blocks 605 are respectively located at both ends of the connecting block 506, a fixing hole 606 is opened on the connecting block 506, the two groups of second limit blocks 605 are respectively located at both ends of the fixing hole 606, the two groups of racks 602, the first fixing block 603, the second fixing block 604 and the two groups of second limit blocks 605 are all slidably mounted in the connecting block 506, and a fifth hydraulic cylinder 607 is arranged in the connecting block 506, the fixed end of the fifth hydraulic cylinder 607 is fixedly connected to the connecting block 506, and the telescopic end is fixedly connected to the first fixing block 603, such as Figure 5 and Fig. 9 shown.

[0022] The segment rotating device 502 is provided with two groups of fourth hydraulic cylinders 508, and the telescopic ends of the two groups of fourth hydraulic cylinders 508 are respectively installed in the two groups of connecting grooves 507. Two groups of second limiting grooves 509 are opened on the telescopic ends of the fourth hydraulic cylinders 508. The fourth hydraulic cylinders 508 can be telescopically moved in the fixing holes 606 on one group of connecting blocks 506, and one end of the corresponding two groups of second limiting blocks 605 is respectively clamped in the two groups of second limiting grooves 509. Figure 4As shown; the inner walls of the two groups of connecting grooves 507 on the pipe segment moving device 503 are provided with two groups of third limiting grooves 514, and one end of the corresponding two groups of second limiting blocks 605 is respectively clamped in the two groups of third limiting grooves 514, and the pipe segment moving device 503 is provided with two groups of rotating hydraulic cylinders 512, and the two groups of rotating hydraulic cylinders 512 are fixedly connected to the pipe segment moving device 503. The rotating ends of the rotating hydraulic cylinders 512 are provided with second connecting rods 511, and the second connecting rods 511 are provided with clamping blocks 510. The pipe segment moving device 503 is provided with two groups of clamping grooves 513, and the two groups of clamping blocks 510 are respectively slidably clamped in the two groups of clamping grooves 513, and the two groups of clamping grooves 513 are respectively connected with the two groups of connecting grooves 507, as shown in FIG. Figure 8 shown.

[0023] When implementing: The staff first starts the rear drive assembly to drive the shield body 1 to dig forward. When the rear drive assembly reaches the stroke limit, the front drive assembly is started to drive the shield body 1 to dig forward. At this time, the excavated length can be used to install a ring of segments 4. At the same time, the staff uses the assembly mechanism to install the segments 4. After the installation of the segments 4 is completed, the rear drive assembly is started and the front drive assembly is retracted. At this time, the extension speed of the rear drive assembly minus the contraction speed of the front drive assembly is equal to the speed at which the shield body 1 is driven by the front drive assembly until the front drive assembly is completely retracted. At this time, the extension speed of the rear drive assembly is reduced. When the front drive assembly and the rear drive assembly push the shield body 1 to move, the moving speed of the shield body 1 remains unchanged. While the segments 4 are installed, the shield body 1 continues to dig, and the moving speed of the shield body 1 remains unchanged. The installation of the segments 4 will not cause the moving speed of the shield body 1 to change, thereby affecting the quality of excavation, saving time for tunnel excavation and improving excavation efficiency.

[0024] When the front drive assembly is used to drive the shield body 1 to move, several groups of first hydraulic cylinders 202 are started at the same time, and several groups of first hydraulic cylinders 202 are extended to drive the shield body 1 to move forward. When the rear drive assembly is used to drive the shield body 1 to move, several groups of second hydraulic cylinders 204 and several groups of third hydraulic cylinders 205 are started at the same time, and several groups of second hydraulic cylinders 204 and several groups of third hydraulic cylinders 205 are extended to drive the shield body 1 and the front drive assembly to move forward. When it is necessary to install the pipe segment 4, first start the two groups of second hydraulic cylinders 204 and the third hydraulic cylinder 205 at the position where the pipe segment 4 needs to be installed. The two groups of second hydraulic cylinders 204 and the third hydraulic cylinders 205 shrink at the same time, and the two groups of second hydraulic cylinders 204 drive the first matching block 206 to separate from one of the adjacent groups of second matching blocks 207. The other side of the two groups of first matching blocks 206 is still in contact with the second matching block 207 on the third hydraulic cylinder 205. Then start the four groups of driving motors 305 at the same time. The four groups of driving motors 305 drive the inner gear ring 301 and the outer gear ring 302 to rotate respectively through the first gear 306. The inner gear ring 301 rotates on the second fixed ring 203, and the outer gear ring 302 rotates on the third fixed ring 303. When the inner gear ring 301 and the outer gear ring 302 rotate, they respectively drive the corresponding movable frame 308 to move. The moving trajectory of the movable frame 308 is circular, and the sliding groove 701 is always facing the center of the inner gear ring 301. When the two groups of movable frames 308 move respectively When the two groups of first matching blocks 206 are separated from the corresponding two groups of second matching blocks 207, the driving motor 305 is stopped. Although the first matching block 206 is separated from the corresponding second matching block 207 at this time, part of the first matching block 206 is aligned with part of the second matching block 207. Then the staff starts the scissor-type lifting device 702, and the scissor-type lifting device 702 drives the support block 703 to move until the support block 703 is moved between the first matching block 206 and the second matching block 207. At this time, one end of the support block 703 contacts the corresponding second matching block 207. Then the two groups of second hydraulic cylinders 204 and the third hydraulic cylinder 205 are extended to drive the two groups of first matching blocks 206 and the second matching blocks 207 to move until the two groups of first matching blocks 206 are respectively in contact with the corresponding support blocks 703. At this time, the force exerted on the first matching block 206 can be transmitted to the corresponding second matching block 207 through the support block 703. At this time, the state of the continuous driving mechanism is as follows: Fig.11 As shown; when the front drive assembly drives the shield body 1 to move forward, the reaction force is applied to the rear drive assembly. Since the two groups of the retracted second hydraulic cylinders 204 and the third hydraulic cylinders 205 need to install the pipe segment 4, there is no support point at the two groups of the first matching blocks 206 and the second matching blocks 207. By placing a support block 703 between the first matching block 206 and the corresponding second matching block 207, support is added to the two groups of the first matching blocks 206 and the second matching blocks 207 to prevent the unbalanced force of the rear drive assembly during the installation of the pipe segment 4, resulting in the shield body 1 tilting when the front drive assembly drives the shield body 1 to move, thereby causing the tunnel to bend.

[0025] Then the staff controls the assembling mechanism to install the pipe segment 4. When installing the pipe segment 4, the staff first sucks the pipe segment 4 to be installed with the vacuum suction cup 504 located on the pipe segment rotating device 502, and then the staff moves the pipe segment moving device 503 until the pipe segment moving device 503 contacts the pipe segment rotating device 502. At this time, the two groups of connecting grooves 507 on the pipe segment rotating device 502 are respectively aligned with the two groups of connecting grooves 507 on the pipe segment moving device 503. At this time, the vacuum suction cup 504 that is not connected to the pipe segment 4 is located above the vacuum suction cup 504 connected to the pipe segment 4. Then the staff moves the connecting block 506 located in the pipe segment moving device 503 into the pipe segment rotating device 502, and also moves the connecting block 506 located in the pipe segment rotating device 502 The connecting block 506 moves to the segment moving device 503; then the staff controls the segment moving device 503 and the lifting cylinder 505 to move the segment 4 to the specified position and install the segment 4. At the same time, the staff moves the segment rotating device 502 180 degrees to make the vacuum suction cup 504 vertically downward, and then adsorbs another group of segments 4 to be installed on the vacuum suction cup 504. When the installation of the segment 4 is completed, the staff moves the segment moving device 503 to contact the segment rotating device 502. At this time, the vacuum suction cup 504 on the segment moving device 503 is located above. In this reciprocating manner, the staff can adsorb another group of segments 4 while installing the segment 4, thereby saving time for installing the segment 4 and improving the efficiency of tunnel construction.

[0026] When the staff moves the connecting block 506 located in the pipe segment moving device 503 to the pipe segment rotating device 502, the staff first starts the rotating hydraulic cylinder 512, and the rotating hydraulic cylinder 512 drives the second connecting rod 511 and the clamping block 510 to rotate, and the clamping block 510 rotates in the clamping groove 513 until the clamping block 510 is completely separated from the connecting groove 507. Then the staff controls the fourth hydraulic cylinder 508 located above to extend so that the second limit groove 509 is aligned with the two groups of limit blocks respectively. Then the staff controls the connecting component located above, and the connecting component controls the limit block to separate from the third limit groove 514 and be clamped in the second limit groove 509, so that the connecting block 506 is separated from the pipe segment moving device 503 and fixedly connected to the corresponding fourth connecting cylinder. Then the fourth hydraulic cylinder 508 contracts, driving the corresponding connecting block 506, lifting cylinder 505 and vacuum suction cup 504 to move until the connecting block 506 moves from the pipe segment moving device 503 to the pipe segment rotating device 502.

[0027] When the staff moves the connection block 506 located in the segment rotating device 502 to the segment moving device 503, they first control the fourth hydraulic cylinder 508 located below to extend, and the telescopic end of the fourth hydraulic cylinder 508 drives the corresponding connection block 506, the lifting cylinder 505, the vacuum suction cup 504 and the segment 4 to move, so that the connection block 506 slides in the connection groove 507, first separates from the segment rotating device 502, and then moves to the segment moving device 503 until the fourth hydraulic cylinder 508 is fully extended. At this time, the connection block 506 is removed from the segment rotating device 502. The segment rotating device 502 moves into the segment moving device 503, and then the staff controls the connecting assembly located below to release the fixation between the connecting block 506 and the corresponding fourth hydraulic cylinder 508, and at the same time fixes it to the segment moving device 503. Then the staff starts the rotating hydraulic cylinder 512 located below, and the rotating hydraulic cylinder 512 drives the second connecting rod 511 and the clamping block 510 to rotate, so that the clamping block 510 is located in the connecting groove 507, and the connecting block 506 is fixed in the connecting groove 507 through the clamping block 510.

[0028] When it is necessary to use a connecting assembly to connect the connecting block 506 with the fourth hydraulic cylinder 508, the fifth hydraulic cylinder 607 is started, and the telescopic end of the fifth hydraulic cylinder 607 extends, driving the first fixed block 603 and the corresponding rack 602 and the second limit block 605 to move, and the rack 602 drives another set of racks 602 to move through the second gear 601, and the other set of gears drives the second fixed block 604 and the corresponding second limit block 605 to move. At this time, the two sets of racks 602 move at the same speed and move in opposite directions, and at the same time, the two sets of second limit blocks 605 move at the same speed and move in opposite directions. At this time, the two sets of second limit blocks 605 both move toward the fourth hydraulic cylinder 508. At this time, the distance between the two sets of second limit blocks 605 becomes closer and closer until the two sets of second limit blocks 605 are closer and closer. One end of each group of second limit blocks 605 is clamped in the second limit groove 509 on the fourth hydraulic cylinder 508. At this time, the connecting block 506 is connected to the corresponding fourth hydraulic cylinder 508 through a connecting assembly; when the connecting assembly is needed to connect the connecting block 506 to the pipe segment moving device 503, the staff contracts the fifth hydraulic cylinder 607, and the fifth hydraulic cylinder 607 drives the two groups of second limit blocks 605 to move through the first fixed block 603, two groups of racks 602, the second gear 601 and the second fixed block 604. At this time, the distance between the two groups of second limit blocks 605 becomes farther and farther, until the two groups of second limit blocks 605 are respectively clamped in the two groups of third limit grooves 514. At this time, the connecting block 506 is connected to the pipe segment moving device 503 through the connecting assembly.

[0029] The above is only an embodiment of the present invention, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the present invention.

Claims

1. A shield machine continuous advancement and segment installation structure, characterized in that: It comprises a shield body, on which a continuous driving mechanism for continuous excavation is arranged, and behind which an assembly mechanism for installing pipe segments is arranged; The continuous drive mechanism comprises a front drive assembly and a rear drive assembly, wherein the front drive assembly is connected to the shield body, and the rear drive assembly is located between the front drive assembly and the assembly mechanism; The front drive assembly comprises a first fixing ring, the first fixing ring is fixedly connected to the shield body, and a plurality of groups of first hydraulic cylinders are arranged on the first fixing ring; The rear drive assembly includes a second fixed ring, and a plurality of groups of the first hydraulic cylinders are fixedly connected to the second fixed ring. A support assembly for evenly applying force to the rear drive assembly is arranged in the second fixed ring.

2. The shield machine continuous advancement and segment installation structure according to claim 1 is characterized in that: The rear drive assembly includes a plurality of groups of second hydraulic cylinders and a plurality of groups of third hydraulic cylinders, wherein the plurality of groups of the second hydraulic cylinders and the plurality of groups of the third hydraulic cylinders are interlaced with each other, a plurality of groups of the second hydraulic cylinders are each provided with a first matching block, and a plurality of groups of the third hydraulic cylinders are each provided with a second matching block; The cross-sections of the first matching blocks and the second matching blocks are both in a "convex" shape, and several groups of the first matching blocks and several groups of the second matching blocks are interlaced with each other to form a complete circular ring; Several groups of first matching blocks and several groups of second matching blocks are in contact with the pipe segments.

3. The shield machine continuous advancement and segment installation structure according to claim 2 is characterized in that: The support assembly includes a third fixed ring, a plurality of groups of first connecting rods are arranged on the third fixed ring, the plurality of groups of first connecting rods are fixedly connected to the second fixed ring, a rotatable outer tooth ring is arranged on the third fixed ring, a rotatable inner tooth ring is arranged on the second fixed ring, and a movable frame is fixedly connected to the inner tooth ring and the outer tooth ring. The movable frame is provided with a connecting frame, and one end of the connecting frame is slidably mounted on the third fixed frame; The movable frame is provided with a sliding groove, a support block is slidably mounted in the sliding groove, a scissor-type lifting device is arranged at the bottom end of the sliding groove, and the other end of the scissor-type lifting device is fixedly connected to the support block.

4. The shield machine continuous advancement and segment installation structure according to claim 3 is characterized in that: Four sets of fixing platforms are arranged on the second fixing ring, and driving motors are arranged on the four sets of fixing platforms, and first gears are arranged on the output ends of the four sets of driving motors; Two groups of the first gears are meshed on the inner gear ring, and the other two groups of the first gears are meshed on the outer gear ring.

5. The shield machine continuous advancement and segment installation structure according to claim 4 is characterized in that: The assembly mechanism includes a joist, on which a pipe segment rotating device and a pipe segment moving device are arranged, wherein the pipe segment rotating device can only rotate on the joist, and the pipe segment moving device can rotate and move on the joist; The segment moving device and the segment rotating device are both provided with two groups of connecting grooves, wherein connecting blocks are slidably mounted in the two groups of connecting grooves, the two groups of connecting blocks are respectively located in the segment moving device and the segment rotating device, and connecting components are arranged in the connecting blocks; The connection block is provided with a lifting cylinder, and the lifting cylinder is provided with a vacuum suction cup.

6. The shield machine continuous advancement and segment installation structure according to claim 5 is characterized in that: The connecting assembly includes a second gear, two sets of racks are meshed on the second gear, the two sets of racks are parallel, a first fixed block and a second fixed block are respectively provided on the two sets of racks, the other ends of the first fixed block and the second fixed block are both provided with limit blocks, the two sets of limit blocks are respectively located at both ends of the connecting block, a fifth hydraulic cylinder is fixedly connected in the connecting block, and the telescopic end of the fifth hydraulic cylinder is fixedly connected to the first fixed block; The first gear is rotatably connected to the connecting block, and the two groups of racks, the first fixing block, the second fixing block and the two groups of limit blocks are respectively slidably mounted in the connecting block.

7. The shield machine continuous advancement and segment installation structure according to claim 6 is characterized in that: Two groups of rotating hydraulic cylinders are arranged in the segment moving device, and second connecting rods and clamping blocks are arranged on the two groups of rotating hydraulic cylinders. Two groups of clamping slots are opened in the segment moving device, and the two groups of clamping slots are respectively connected with the two groups of connecting slots, and the two groups of clamping blocks are respectively slidably clamped in the two groups of clamping slots; One group of the card blocks is located in the connecting groove, and the other group of the card blocks is completely separated from the connecting groove; The two side walls of the two groups of connecting grooves are both provided with third limiting grooves, and the two groups of limiting blocks are respectively clamped in two corresponding groups of the third limiting grooves.

8. The shield machine continuous advancement and segment installation structure according to claim 7 is characterized in that: Two groups of fourth hydraulic cylinders are arranged on the segment rotating device, and the telescopic ends of the two groups of fourth hydraulic cylinders are respectively installed in the two groups of connecting grooves; The telescopic end of the fourth hydraulic cylinder is provided with two groups of second limiting grooves, and the two groups of limiting blocks are respectively clamped in the two groups of the second limiting grooves.

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