A device for launching, receiving, translating, rotating and turning large shield machines

Abstract

The present invention discloses a device for launching, receiving, translating, and rotating a shield machine, comprising an upper bracket, a lower bracket, a slewing support mechanism, and a slewing drive mechanism. The upper bracket, slewing support mechanism, and lower bracket are arranged in sequence from top to bottom. The first end of the slewing support mechanism is connected to the upper bracket, and the second end of the slewing support mechanism is connected to the lower bracket. The upper bracket and the lower bracket can rotate relative to each other. A slewing drive mechanism is provided on at least one side of the lower bracket. Under the pushing action of the slewing drive mechanism, the upper bracket can rotate and turn relative to the lower bracket. A ratchet-type welded support is fixedly mounted on the upper bracket, and the slewing drive mechanism drives the upper bracket to rotate integrally by driving the ratchet-type welded support. The upper bracket can bear the weight of a shield mounted on the upper bracket and can also push the upper bracket through a slewing drive cylinder to achieve slewing and turning of the shield machine.

Description

Technical Field

[0001] The invention belongs to the technical field of shield construction, and in particular relates to equipment used for starting, receiving, translating, rotating and turning around a shield machine. Background Art

[0002] Modern large-scale shield machines typically use reinforced concrete as their mounting base for launch and exit. The base is set to a fixed height and slope based on the launch or exit requirements. However, in actual operation, the height and slope of the shield machine launch and exit may not fully meet the design requirements. The shield machine can only meet the requirements by adjusting the shield body's posture after launch or before exit. Furthermore, the removal of the reinforced concrete shield machine mounting base after use is a very labor-intensive task, generating a large amount of industrial waste and being uneconomical.

[0003] Furthermore, most modern shield tunneling machines operate on two lines. Simultaneous construction would require two large shield machines, which would be prohibitively expensive. Using a single shield machine would require extensive work such as dismantling, hoisting, transporting, and reinstalling the machine when switching lines, resulting in lengthy construction cycles and high costs. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems existing in the above-mentioned prior art and to provide a device for starting, receiving, translating, rotating and turning large shield machines. The device is divided into two major parts, upper and lower, which are connected in the middle by a large rotary support mechanism. It can not only bear the weight of the shield placed on the upper bracket, but also push the upper bracket through the rotary drive cylinder to realize the rotation and turning of the shield machine.

[0005] To achieve the above-mentioned objectives, the present invention adopts the following technical solutions: a device for starting, receiving, translating, rotating and turning large shield machines, comprising an upper bracket, a lower bracket, a slewing support mechanism and a slewing drive mechanism; the upper bracket, slewing support mechanism and lower bracket are arranged in sequence from top to bottom, the first end of the slewing support mechanism is connected to the upper bracket, the second end of the slewing support mechanism is connected to the lower bracket, the upper bracket and the lower bracket can rotate relative to each other, a slewing drive mechanism is provided on at least one side of the lower bracket, and the upper bracket can rotate and turn relative to the lower bracket under the pushing action of the slewing drive mechanism; a ratchet-type welding support is fixedly installed on the upper bracket, and the slewing drive mechanism drives the upper bracket to rotate as a whole by driving the ratchet-type welding support.

[0006] As a preferred solution, the rotary drive mechanism includes a rotary drive cylinder and a cylinder mounting seat. The cylinder mounting seat is fixedly arranged on both sides of the lower bracket. The base end of the rotary drive cylinder is rotatably connected to the cylinder mounting seat. The ratchet type welding support is circumferentially provided with a circle of external teeth that cooperate with the pushing end of the rotary drive cylinder. The rotary drive cylinder intermittently drives the ratchet type welding support and the upper bracket to rotate and adjust as a whole through the telescopic action of the pushing end.

[0007] As a preferred solution, the slewing support mechanism includes an upper bearing seat, a lower bearing seat, a tapered roller and a retaining frame. The upper bearing seat and the lower bearing seat are opposite to each other up and down and are both arranged in sections. Both bearing seats are surrounded by multiple arc segments and have an overall circular structure. The tapered roller is installed in the raceway of the lower bearing seat through the retaining frame. The upper bearing seat is rotatably connected to the lower bearing seat through the tapered roller. The upper bearing seat is fixedly connected to the upper bracket, and the lower bearing seat is fixedly connected to the lower bracket.

[0008] As a preferred solution, the upper bracket includes an upper support beam, two upper support beams are arranged in parallel, and the two upper support beams are fixedly connected by a first connecting beam to form an upper bracket body. A center pin sleeve is formed in the center of the first connecting beam, and auxiliary support seats are symmetrically arranged on both sides near the middle of the upper end surface of the upper bracket body. A support plate with an inner side inclined downward is formed on the top of the auxiliary support seat, and shield support rails are symmetrically arranged on both sides of the upper bracket body. The shield support rails include a lifting arm plate and a support rail arranged on the top of the lifting arm plate.

[0009] As a preferred solution, the lower bracket includes a lower support beam, two of which are arranged in parallel. The two lower support beams are fixedly connected by a second connecting beam to form a lower bracket body. A mounting seat plate and a guide hole for fixing the running device are also formed on the lower bracket body. A center pin shaft corresponding to the position of the center pin sleeve of the upper bracket is provided on the upper end surface of the lower bracket body; the center pin shaft is inserted in the center pin sleeve to realize alignment and guiding between the upper bracket and the lower bracket.

[0010] As a preferred solution, connecting wing plates are symmetrically arranged on both side edges of the upper bracket, and the connecting wing plates are used to install the trolley support frame. The trolley support frame includes a trolley bracket and a trolley support box beam. The trolley bracket includes a first support frame and a second support frame connected at both ends. The first support frame is vertically arranged on the upper support beam and located on the outside of the connecting wing plate, and the second support frame is inclined from the outside to the inside and is arranged on the connecting wing plate. The connection between the first support frame and the second support frame forms an acute angle, and the trolley support box beam is fixedly mounted on the second support frame for contacting the bottom roller of the trolley.

[0011] As a preferred solution, a row of lifting hydraulic cylinders are respectively provided at the front and rear ends of the lower bracket. The front and rear rows of lifting hydraulic cylinders can be raised synchronously to complete the adjustment of the starting center height and the receiving center height of the shield machine, or raised to different heights in steps to achieve the adjustment of the starting slope and the receiving slope of the lower bracket.

[0012] As a preferred solution, it also includes a running device, which is installed on the lower bracket. Under the push of the lifting hydraulic cylinder, the running device can be separated from the ground, thereby realizing a 90° adjustment of the travel direction of the running device. The running device includes a turn pin, a fastening nut, a roller frame, a roller and a bearing. The roller is rotatably installed in the roller frame through the bearing. The lower end of the turn pin is fixedly connected to the roller frame. A buffer pad in contact with the mounting seat plate is provided on the upper end surface of the roller frame. The upper end of the turn pin passes through the guide hole of the lower bracket and is fixed by a fastening nut.

[0013] As a preferred embodiment, it also includes a pushing mechanism, which includes a longitudinal pushing cylinder and a transverse pushing cylinder. The longitudinal pushing cylinder is connected to the front of the lower bracket, and the longitudinal pushing cylinder is telescopically pushed along a first moving direction. The transverse pushing cylinder is arranged on one side of the middle part of the lower bracket, and the transverse pushing cylinder is telescopically pushed along a second moving direction. The first moving direction is the forward and backward moving direction of the lower bracket, and the second moving direction is perpendicular to the first moving direction.

[0014] The present invention has at least the following beneficial effects:

[0015] First, this scheme is divided into several major parts, including the upper bracket, the lower bracket, the slewing support mechanism and the slewing drive mechanism. Among them, the upper bracket and the lower bracket are supported and connected by the slewing support mechanism, which can not only bear the weight of the shield body placed on the upper bracket, but also push the ratchet-type welded support at the bottom of the upper bracket through the slewing drive cylinder to realize the rotation and turning of the shield machine.

[0016] Second, in this solution, the ratchet welding support cooperates with a rotary drive cylinder. The piston rod of the rotary drive cylinder extends and retracts, pushing the outer teeth of the welding support to rotate around the center of the support, thereby achieving relative rotation between the upper and lower brackets. The rotary drive cylinders on both sides of the lower bracket extend simultaneously, applying force evenly to the welding support and ensuring smooth rotation of the upper bracket.

[0017] Third, the slewing support mechanism includes an upper bearing seat, a lower bearing seat and a tapered roller. The upper bearing seat, the lower bearing seat and the tapered roller are detachably installed so that after the upper bracket and the lower bracket are combined, the upper bracket and the lower bracket can be rotated relative to each other. After the upper bracket and the lower bracket are disassembled and assembled, each component is easy to lift.

[0018] Fourthly, the upper end face of the upper bracket is provided with a supporting structure that cooperates with the shield machine, a center pin sleeve is formed in the center of the upper bracket, a mounting seat and a guide hole for installing a running device are provided on the lower bracket, and a center pin shaft is provided at the position corresponding to the center pin sleeve of the lower bracket. The coordinated guidance of the center pin shaft and the center pin sleeve can realize the alignment and guidance of the upper bracket and the lower bracket.

[0019] Fifth, the trolley support frame consists of a trolley bracket and a supporting box beam. The trolley bracket is mounted on the connecting wing plates on both sides of the upper bracket, and the supporting box beam is mounted on the trolley bracket. The shield machine's No. 1 trolley's splayed wheels rest on the two supporting box beams, completing the assembly and guidance of the No. 1 trolley.

[0020] Sixth, the lifting hydraulic cylinders are located at the front and rear ends of the lower bracket. The two rows of lifting hydraulic cylinders can be raised synchronously or in steps to adjust the starting or receiving slope of the shield machine. For example, the synchronous raising of the lifting hydraulic cylinders at both ends can adjust the height of the starting or receiving center of the shield machine. The lifting of the lifting hydraulic cylinders at different heights at both ends can keep the lower bracket at a certain slope with the ground, thereby adjusting the starting or receiving slope of the shield machine.

[0021] Seventh, the lifting hydraulic cylinder of this scheme can separate the traveling device from the ground by lifting. In this case, the traveling device can be manually adjusted 90° to adjust the direction of travel. Through the cooperation of two groups of longitudinal pushing cylinders and lateral pushing cylinders in different directions of the pushing mechanism, the entire equipment can be moved in different directions as needed. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 The structure of the general assembly structure of the special equipment for starting, receiving, translating, rotating and turning Figure 1 ;

[0024] Figure 2 The structure of the general assembly structure of the special equipment for starting, receiving, translating, rotating and turning Figure 2 ;

[0025] Figure 3 Schematic diagram of the upper bracket structure Figure 1 ;

[0026] Figure 4 Schematic diagram of the upper bracket structure Figure 2 ;

[0027] Figure 5 Schematic diagram of the lower bracket structure Figure 1 ;

[0028] Figure 6 Schematic diagram of the lower bracket structure Figure 2 ;

[0029] Figure 7 This is the installation structure diagram of the rotary drive mechanism;

[0030] Figure 8 This is the installation diagram of the slewing drive mechanism and the slewing support mechanism;

[0031] Figure 9 for Figure 8 Cross-sectional view at AA in the middle;

[0032] Figure 10 This is the coordination diagram between the shield and the rotary transfer equipment;

[0033] Figure 11 It is the structural diagram of the slewing support mechanism;

[0034] Figure 12 is a cross-sectional view of the slewing support mechanism;

[0035] Figure 13 Schematic diagram of the running gear structure Figure 1 ;

[0036] Figure 14 Schematic diagram of the running gear structure Figure 2 ;

[0037] Markings in the figure: 1. Upper bracket, 11. Upper support beam, 12. First connecting beam, 13. Auxiliary support seat, 14. Shield support rail, 15. Center pin sleeve, 16. Connecting wing plate, 2. Lower bracket, 21. Lower support beam, 22. Second connecting beam, 23. Center pin shaft, 24. Lifting hydraulic cylinder, 25. Guide hole, 3. Rotary support mechanism, 31. Upper bearing seat, 32. Lower bearing seat, 33. Tapered roller, 34. Retaining frame, 4. Running device, 41. Mounting pin, 42. Fastening nut, 43. Roller frame, 44. Roller, 45. Bearing, 46. Rubber buffer pad, 47. Pin, 5. Trolley support frame, 51. Trolley bracket, 52. Trolley support box beam, 6. Sliding mechanism, 61. Longitudinal sliding cylinder, 62. Transverse sliding cylinder, 7. Rotary drive mechanism, 71. Rotary drive cylinder, 72. Cylinder mounting seat, 8. Base. DETAILED DESCRIPTION

[0038] The present invention is described in detail below by way of exemplary embodiments. However, it should be understood that elements, structures, and features in one embodiment may also be beneficially combined in other embodiments without further description.

[0039] It should be noted that: unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by persons having ordinary skills in the field to which the invention belongs. The words "one", "an" or "the" and the like used in the patent application specification and claims of the present invention do not express a quantitative limitation, but rather indicate the presence of at least one. Words such as "include" or "comprise" indicate that the elements or objects appearing before "include" or "comprises" include the elements or objects listed after "include" or "comprises" and their equivalents, but do not exclude other elements or objects with the same function.

[0040] like Figure 1 As shown, this embodiment provides a device for launching, receiving, translating, rotating and turning around a large shield machine, including an upper bracket 1, a slewing support mechanism 3, a lower bracket 2 and a slewing drive mechanism 7, wherein the upper bracket 1 and the lower bracket 2 are arranged correspondingly up and down, and the upper bracket 1, the slewing support mechanism 3 and the lower bracket 2 are arranged in sequence from top to bottom. The upper bracket 1 is used to directly support the shield machine, so it is located at the top, and the lower bracket 2 serves as a base for contacting the ground, wherein the slewing support mechanism 3 is installed between the upper bracket 1 and the lower bracket 2, and is used to enable the upper bracket 1 and the lower bracket 2 to rotate relative to each other. Slewing drive mechanisms 7 are also provided on both sides of the lower bracket 2. The function of the slewing drive mechanism 7 is to promote the rotation and turning of the upper bracket 1, thereby realizing the turning operation of the shield machine.

[0041] In this embodiment, the upper bracket 1 includes upper support beams 11 arranged in parallel on both sides. The two upper support beams 11 are fixedly connected by a first connecting beam 12. The first connecting beam 12 includes an intermediate longitudinal beam and transverse support arms located on both sides of the intermediate longitudinal beam. The transverse support arms are perpendicular to the intermediate longitudinal beam. The upper support beam 11 is connected to the outer ends of the transverse support arms, thereby forming the upper bracket body. A center pin sleeve 15 is formed in the middle of the first connecting beam 12. Auxiliary support seats 13 are symmetrically arranged on both sides near the middle of the upper end surface of the upper bracket body. The top of the auxiliary support seat 13 is formed with a support plate with an inner side tilted downward. Shield support rails 14 are symmetrically arranged on both sides of the upper bracket body. The shield support rails 14 include a lifting arm plate and a support rail 14 arranged on the top of the lifting arm plate. The shield support rails 14 are used for rolling or sliding contact with the outer wall of the shield body. The auxiliary support seat 13 is located in the middle of the shield support rails 14 and can further provide auxiliary support for the shield body from below.

[0042] In this solution, a connecting wing plate 16 is provided above the upper support beam of the upper bracket 1. The trolley bracket is mounted on the connecting wing plates 16 on both sides of the upper bracket. The trolley support frame 5 is composed of a trolley bracket 51 and a supporting box beam 52. The supporting box beam 51 is mounted on the trolley bracket 52. The shield machine's No. 1 trolley's splayed wheels fall on the two supporting box beams 52, which can complete the assembly and guidance of the No. 1 trolley. Figure 10 The trolley bracket 51 can adopt the following structure: for example, the trolley bracket 51 includes a first support frame and a second support frame connected at both ends, the first support frame is vertically arranged on the upper support beam 11 and is located on the outside of the connecting wing plate 16, and the second support frame is inclined from the outside to the inside on the connecting wing plate 16. The connection between the first support frame and the second support frame forms an acute angle, and the trolley support box beam 52 is fixedly mounted on the second support frame.

[0043] In this embodiment, the lower bracket 2 includes two parallel lower support beams 21, which are fixedly connected by a second connecting beam 22 to form the lower bracket body. The structure of the second connecting beam 22 is similar to that of the first connecting beam 12 described above and will not be described here. The lower bracket body also includes a mounting plate and guide holes 25 for securing the running gear 4. A center pin 23 is provided on the upper end surface of the lower bracket body, corresponding to the center pin sleeve 15 of the upper bracket 1. The center pin 23 is inserted into the center pin sleeve 15 to provide alignment and guidance for the upper and lower brackets 1 and 2 during installation and docking.

[0044] Reference Figure 11 and 12 The function of the slewing support mechanism 3 is to realize the relative rotation of the upper bracket 1 and the lower bracket 2. The slewing support mechanism 3 includes an upper bearing seat 31, a lower bearing seat 32, a tapered roller 33 and a retaining frame 34. The upper bearing seat 31 is installed at the bottom of the upper bracket 1, and the lower bearing seat 32 is installed at the upper part of the lower bracket 2. The upper bearing seat 31 and the lower bearing seat 32 are opposite to each other up and down and are both divided into 24 sections. The tapered roller 33 is installed in the raceway of the lower bearing seat 32 through the retaining frame 34. The upper bearing seat 31 is rotatably connected to the lower bearing seat 32 through the tapered roller 33.

[0045] In this solution, a row of hydraulic lift cylinders 24 is installed at each of the front and rear ends of the lower bracket 2. The two sets of hydraulic lift cylinders 24 can be raised synchronously to adjust the starting center height of the shield machine, or raised in steps to adjust the slope of the lower bracket 2, thereby adjusting the receiving slope of the shield machine. One end of the hydraulic lift cylinder 24 is connected to the flange plate of the lower bracket 2, and the other end is supported on the ground. There are six hydraulic lift cylinders 24 at each end of the lower bracket 2, for a total of 12 hydraulic cylinders at both ends. Each row of hydraulic lift cylinders 24 is controlled by a solenoid valve, and each hydraulic lift cylinder 24 is equipped with a hydraulic lock.

[0046] like Figure 13 and 14 As shown, the running gear 4 includes rollers 44, a swivel pin 41, a self-lubricating bearing 45, a roller frame 43, a rubber buffer pad 46, a positioning ring, a clamping plate, a fastening nut 42, and a pin 47. The running gear 4 is mounted on the lower bracket 2. Driven by the lifting hydraulic cylinder 24, the running gear 4 can be disengaged from the ground, thereby achieving 90° adjustment of the travel direction of the running gear 4. The rollers 44 are rotatably mounted in the roller frame 43 via the self-lubricating bearing 45 and the pin 47. The lower end of the swivel pin 41 is fixedly connected to the roller frame 43. The upper end surface of the roller frame 43 is provided with a buffer pad 46 that contacts the seat plate. The buffer pad 46 balances the pressure between each roller 44 and adapts to unevenness in the running line, ensuring that the rollers 44 achieve basic load and pressure uniformity. The upper end of the swivel pin 41 passes through the guide hole 23 of the lower bracket 2 and is secured by a fastening nut 42.

[0047] In this embodiment, not shown in the accompanying drawings, the running device 4 can also be configured as follows: the running device 4 includes a roller 44, a rotating pin 41, a self-lubricating bearing 45, and a roller frame 43. A mounting block for mounting the running device 4 is provided on the frame of the lower bracket 2. The mounting block is provided with a vertical axial hole. A cylindrical cavity is formed in the middle of the axial hole. The axial hole and the cavity are connected to form a structure with narrow ends and a thick center. A locking block is formed in the middle of the rotating pin 41, which conforms to the shape of the cavity. Four sockets are evenly distributed around the circumference of the locking block. The four sockets are arranged in a group of two opposing sockets. Locking holes corresponding to the sockets are provided on both sides of the mounting block. The rotating pin 41 has two positions. In the first position, the two opposing sockets correspond to one of the socket groups and are locked by a locking mechanism. This prevents the rollers from twisting during movement and ensures the consistent travel direction of the rollers. When the roller needs to be reversing 90 degrees as a whole, the locking cylinder of the locking mechanism drives the locking block out of the socket to release the lock, and the driving linkage mechanism drives the rotating pin 41 to rotate, thereby driving the rotating pin 41 to rotate 90 degrees to the second position. The locking mechanism enters the locking hole again and is inserted into the socket to lock the rotating pin 41. The driving linkage mechanism includes a reversing cylinder fixedly mounted on the lower bracket 2 and a push rod vertically arranged at the piston end of the reversing cylinder. The push rod is correspondingly provided with a plurality of pins, and the pins are connected to the corresponding rotating pins 41 through a connecting rod mechanism. The connecting rod mechanism is formed by two connecting rods hinged together, one end of the connecting rod mechanism is hinged at the pin, and the other end of the connecting rod mechanism is fixedly connected to the upper end of the rotating pin 41. The reversing cylinder pushes the push plate to move, and all rollers on one side are synchronously reversing and adjusted, thereby improving the reversing efficiency of the rollers.

[0048] The function of the pushing mechanism 6 is to realize the horizontal adjustment of the entire equipment by pushing the horizontal movement of the lower bracket 1 in two directions. The pushing mechanism 6 includes a longitudinal pushing cylinder 61 and a transverse pushing cylinder 62. There are two longitudinal pushing cylinders 61 and two transverse pushing cylinders 62. Among them, the two ends of the longitudinal pushing cylinder 61 are respectively connected to the base 8 and the front of the lower bracket 2, and the longitudinal pushing cylinder 61 is telescopically pushed along the first moving direction, thereby cooperating with the running device 4 to move in the front and rear directions of the entire equipment. The transverse pushing cylinder 62 is arranged on one side of the middle of the lower bracket 2, and the two ends of the transverse pushing cylinder 62 are respectively connected to the base 8 and the middle side of the lower bracket 2. The base 8 is fixed, and the transverse pushing cylinder 62 is telescopically pushed along the second moving direction, thereby cooperating with the running device 4 to move in the transverse direction of the entire equipment. The first moving direction is the front and rear moving direction along the lower bracket 2, and the second moving direction is perpendicular to the first moving direction.

[0049] In this solution, a hydraulic system is provided, which has two hydraulic workstations. One hydraulic workstation controls the operation of twelve lifting hydraulic cylinders 24, and the other hydraulic workstation controls the operation of the longitudinal push cylinder 61, the lateral push cylinder 62 and the two rotary drive cylinders 24 respectively.

[0050] This solution also provides a construction method for launching, receiving, translating, and rotating equipment for a large shield machine, which specifically includes the following steps:

[0051] S1. When the rotary turning equipment is installed in the well, the lower support beam 21 and the second connecting beam 22 of the lower bracket 2 are respectively hoisted down the working well and installed;

[0052] S2. After the lower bracket 2 is installed, the tapered roller 33 and the retainer 34 are installed on the raceway of the lower bearing seat 32 on the upper end surface of the lower bracket body;

[0053] S3. Assemble the upper support beam 11 and the first connecting beam 12 of the upper bracket 1 on the working pit. Hang the whole thing down and align it with the positioning pin 23 of the lower bracket 2 through the center pin sleeve 15 to ensure that the upper bearing seat 31 at the bottom of the upper bracket 1 just falls on the tapered roller 33.

[0054] S4. After the trolley bracket 51 is installed on both sides of the upper bracket 1 and connected to the wing plates 16, the trolley support box beam 52 is lowered into the well and installed on the trolley bracket 51;

[0055] S5. Using the lifting hydraulic cylinders 24 in the front and rear rows of the lower bracket 2, the starting center height of the shield machine can be adjusted by synchronous lifting. For example, by extending the lifting hydraulic cylinders 24, the shield machine can be raised as a whole, and by contracting the lifting hydraulic cylinders, the shield machine can be lowered as a whole.

[0056] Or the shield machine receiving slope can be adjusted by adjusting the different heights of the two rows of lifting hydraulic cylinders 24; for example, when the lifting hydraulic cylinder 24 on one side is telescopically adjusted to a first height, the lifting hydraulic cylinder 24 on the other side is adjusted to a second height. When the heights of the two sides are different, there will be a certain degree of angle between the lower bracket 2 and the ground. The entire equipment can be adjusted by adjusting the lower bracket 2 to adjust to a suitable slope when the shield machine is receiving.

[0057] S6. The piston rod of the rotary drive cylinder 71 pushes the outer teeth of the ratchet welding support 5. After pushing for a certain distance, the piston rod of the rotary drive cylinder 71 is recovered. This cycle is repeated to complete the rotation and turning of the shield machine on the upper bracket 1 in multiple steps.

[0058] S7. The longitudinal push cylinder 61 pushes the lower bracket 2 to move along the longitudinal direction of the front and rear travel of the lower bracket 2, or, after reversing the travel direction of the running device, the transverse push cylinder 62 pushes the lower bracket 2 to move along the transverse direction perpendicular to the front and rear travel direction of the lower bracket 2, thereby cooperating with the running device 4 to achieve adjustment of the horizontal position of the entire equipment.

[0059] In order to further improve the use effect, when receiving the shield machine, the front and rear two sets of lifting hydraulics are used to achieve different heights of lifting, and the overall bracket will form a certain tilt angle, and the shield body will descend along the slope. Since the shield body is bulky and large, in order to better control the receiving posture of the shield machine when it exits the hole, the shield body support track can be set to the following structure: the shield body support track includes a track frame, a track groove is formed on the upper end face of the track frame, and wing plates are formed on both sides of the track groove. The inner sides of the two wing plates are vertically fixedly connected to the two ends of the support shaft, and a track wheel and a bearing are provided in the middle section of the support shaft. The track wheel is rotatably connected to the support shaft through the bearing, and there are also mounting shafts on both sides of the track wheel on the mounting shaft. Friction plates, gaskets, butterfly springs and nuts are separately provided. The friction plates, gaskets, butterfly springs and nuts are sequentially passed through the mounting shaft from the track wheel to the two ends of the mounting shaft. An external thread cooperating with the nut is provided near the end of the mounting shaft. By adjusting the screwing position of the nut, the force applied by the nut to the friction plate is adjusted by the butterfly spring and gasket. The degree of fit and compression between the end face of the friction plate and the end face of the track wheel can be adjusted, which can effectively offset part of the downward force generated when the shield machine descends the slope, better ensure the safety of construction and the stability of the shield machine's posture. In addition, an elastic anti-skid layer in contact with the shield machine is provided on the wheel surface of the track wheel to form an effective protection for the shield body.

[0060] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with the present profession can make some changes or modifications to equivalent embodiments of equivalent changes using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A device for launching, receiving, translating, rotating and turning large shield machines, characterized by: The swivel drive mechanism comprises an upper bracket, a lower bracket, a swivel support mechanism and a swivel drive mechanism; the upper bracket, the swivel support mechanism and the lower bracket are arranged in sequence from top to bottom, the first end of the swivel support mechanism is connected to the upper bracket, the second end of the swivel support mechanism is connected to the lower bracket, the upper bracket and the lower bracket can swivel relative to each other, a swivel drive mechanism is provided on at least one side of the lower bracket, and the upper bracket can swivel and turn relative to the lower bracket under the pushing action of the swivel drive mechanism; a ratchet-type welding support is fixedly installed on the upper bracket, and the swivel drive mechanism drives the upper bracket to rotate integrally by driving the ratchet-type welding support; The rotary drive mechanism includes a rotary drive cylinder and a cylinder mounting seat. The cylinder mounting seat is fixedly arranged on both sides of the lower bracket. The base end of the rotary drive cylinder is rotatably connected to the cylinder mounting seat. The ratchet welding support is circumferentially provided with a circle of external teeth that cooperate with the pushing end of the rotary drive cylinder. The rotary drive cylinder intermittently drives the ratchet welding support and the upper bracket to rotate and adjust as a whole through the telescopic action of the pushing end; the rotary drive cylinders on both sides of the lower bracket are extended at the same time to make the welding support evenly stressed and ensure smooth rotation of the upper bracket.

2. The device for launching, receiving, translating, rotating and turning a large shield machine according to claim 1, characterized in that: The slewing support mechanism includes an upper bearing seat, a lower bearing seat, a tapered roller and a retaining frame. The upper bearing seat and the lower bearing seat are opposite to each other and are both arranged in sections. Both bearing seats are surrounded by multiple arc segments and have an overall circular structure. The tapered roller is installed in the raceway of the lower bearing seat through the retaining frame. The upper bearing seat is rotatably connected to the lower bearing seat through the tapered roller. The upper bearing seat is fixedly connected to the upper bracket, and the lower bearing seat is fixedly connected to the lower bracket.

3. The device for launching, receiving, translating, rotating and turning large shield machines according to claim 2, characterized in that: The upper bracket includes an upper support beam, two upper support beams are arranged in parallel, and the two upper support beams are fixedly connected by a first connecting beam to form an upper bracket body, a center pin sleeve is formed in the middle of the first connecting beam, and auxiliary support seats are symmetrically arranged on both sides near the middle of the upper end surface of the upper bracket body, and a support plate with an inner side inclined downward is formed on the top of the auxiliary support seat, and shield support rails are symmetrically arranged on both sides of the upper bracket body, and the shield support rails include a lifting arm plate and a support rail arranged on the top of the lifting arm plate.

4. The device for launching, receiving, translating, rotating and turning a large shield machine according to claim 3, characterized in that: The lower bracket includes a lower support beam, two of which are arranged in parallel. The two lower support beams are fixedly connected by a second connecting beam to form a lower bracket body. A mounting seat plate and a guide hole for fixing the running device are also formed on the lower bracket body. A center pin shaft corresponding to the position of the center pin sleeve of the upper bracket is provided on the upper end surface of the lower bracket body; the center pin shaft is inserted in the center pin sleeve to realize alignment and guiding between the upper bracket and the lower bracket.

5. The device for launching, receiving, translating, rotating and turning large shield machines according to claim 4, characterized in that: Connecting wing plates are symmetrically arranged on both side edges of the upper bracket, and the connecting wing plates are used to install the trolley support frame. The trolley support frame includes a trolley bracket and a trolley support box beam. The trolley bracket includes a first support frame and a second support frame connected at both ends. The first support frame is vertically arranged on the upper support beam and located on the outside of the connecting wing plate, and the second support frame is inclined from the outside to the inside and is arranged on the connecting wing plate. The connection between the first support frame and the second support frame forms an acute angle, and the trolley support box beam is fixedly mounted on the second support frame for contacting the bottom roller of the trolley.

6. The device for launching, receiving, translating, rotating and turning a large shield machine according to claim 1, characterized in that: A row of lifting hydraulic cylinders is respectively provided at the front and rear ends of the lower bracket. The front and rear rows of lifting hydraulic cylinders can be raised synchronously to complete the adjustment of the starting center height and the receiving center height of the shield machine, or raised to different heights in steps to realize the adjustment of the starting slope and the receiving slope of the lower bracket.

7. The device for launching, receiving, translating, rotating and turning a large shield machine according to claim 1, characterized in that: It also includes a running device, which is installed on the lower bracket. Under the push of the lifting hydraulic cylinder, the running device can be separated from the ground, thereby realizing a 90° adjustment of the travel direction of the running device. The running device includes a turn pin, a fastening nut, a roller frame, a roller and a bearing. The roller is rotatably installed in the roller frame through the bearing. The lower end of the turn pin is fixedly connected to the roller frame. A buffer pad in contact with the mounting seat plate is provided on the upper end surface of the roller frame. The upper end of the turn pin passes through the guide hole of the lower bracket and is fixed by a fastening nut.

8. The device for launching, receiving, translating, rotating and turning a large shield machine according to claim 1, characterized in that: It also includes a pushing mechanism, which includes a longitudinal pushing cylinder and a transverse pushing cylinder. The longitudinal pushing cylinder is connected to the front of the lower bracket, and the longitudinal pushing cylinder is telescopically pushed along a first moving direction. The transverse pushing cylinder is arranged on one side of the middle part of the lower bracket, and the transverse pushing cylinder is telescopically pushed along a second moving direction. The first moving direction is the front and rear moving direction of the lower bracket, and the second moving direction is perpendicular to the first moving direction.

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