Subway tunnel segment transporting and splicing device and method

Abstract

The invention discloses a subway tunnel segment transporting and splicing device and method.The device comprises a moving table, a rotating mechanism, a splicing mechanism and a segment fixing mechanism which are sequentially connected, the rotating mechanism can move in the segment laying direction and is used for driving the splicing mechanism to rotate, and the segment fixing mechanism is used for fixing segments; the splicing mechanisms are movably connected with the duct piece fixing mechanism, the splicing mechanisms are used for enabling the duct piece fixing mechanism to rotate on two planes perpendicular to each other, and the splicing mechanisms get close to each other and are used for splicing duct pieces; by means of the device, the functions of duct piece conveying, splicing and joint staggering can be achieved at the same time; the structure is simple and the cost is low.

Description

Technical Field

[0001] The present invention relates to the technical field of pipe segment assembly, and in particular to a device and method for transporting and splicing pipe segments of a subway tunnel. Background Art

[0002] Segment assembly is an important part of shield engineering, and its quality directly affects the stress condition of the tunnel and the safety of the overall project. During the assembly process, it usually starts from the standard segment at the bottom, and then the standard segments are installed alternately on the left and right sides, and then the adjacent segments are assembled, and finally the capping segments are installed. During assembly, attention should be paid to tightening the connecting bolts to ensure that the circumferential and axial connections are firm. In the process of simulating shield tunneling, the diameter of the corresponding ring of the segment used in the test is small, and the material quality is greatly reduced. Although the above conditions greatly facilitate the segment assembly work in the experiment, the existing test equipment does not have the functions of segment transportation, splicing, and staggering at the same time.

[0003] For example, a test segment assembly system with patent number CN110939460B includes a sunken test pit, a reaction wall arranged in the test pit, a segment base arranged on the left side of the reaction wall and vertically connected to the reaction wall, a segment ring arranged on the segment base, a segment support frame arranged in the segment ring, a reaction frame arranged on the left side of the segment base and a segment support frame moving device arranged between the segment support frame and the reaction frame; the reaction frame is fixedly connected to the ground of the test pit, the reaction wall is vertically fixedly connected to the bottom of the test pit, one end of the segment support frame moving device is connected to the reaction frame, and the other end of the segment support frame moving device is respectively connected to the segment support frame and the reaction wall.

[0004] It can be seen that the test equipment in the prior art does not have the functions of simultaneously satisfying transportation, splicing and staggering. Summary of the invention

[0005] The purpose of the invention is to provide a subway tunnel segment transportation and splicing device and method, which solves the problem that the prior art does not have the functions of simultaneously satisfying transportation, splicing and staggering.

[0006] The present invention is implemented as follows: a subway tunnel segment transportation and splicing device, which comprises a movable platform, a rotating mechanism, a splicing mechanism and a segment fixing mechanism connected in sequence, wherein the rotating mechanism can move along the segment laying direction, the rotating mechanism is used to drive the splicing mechanism to rotate, the segment fixing mechanism is used to fix the segment, the splicing mechanism is movably connected to the segment fixing mechanism, the splicing mechanism is used to rotate the segment fixing mechanism on two mutually perpendicular planes, and the splicing mechanisms are close to each other for segment splicing.

[0007] In the present invention, the pipe segments are fixed by a pipe segment fixing mechanism, and then the pipe segments can be moved to the position to be laid by a moving platform; then the splicing mechanism drives the pipe segment fixing mechanism to rotate on two mutually perpendicular planes, so that the pipe segments placed on the ground are first rotated upward so that the pipe segments are in a vertical suspended state, and then rotated to both sides so that the openings of the pipe segments are relatively arranged, and finally the pipe segments are spliced ​​by bringing the splicing mechanisms closer to each other to form an annular pipe segment. After the splicing is completed, when staggered connection is required, the splicing mechanism is driven to rotate by the rotating mechanism so that the annular pipe segment on the pipe segment fixing mechanism is rotated, and a staggered installation is formed for the last installed pipe segment; the device in the present invention can simultaneously meet the functions of pipe segment transportation, splicing and staggered installation; the structure is simple and the cost is low.

[0008] A further technical solution of the present invention is that the splicing mechanism is divided into two groups, and the pipe segment fixing mechanism is divided into two groups and corresponds to the splicing mechanism one by one. The one-to-one matching mode of the two groups of splicing mechanisms and the two groups of pipe segment fixing mechanisms makes it easier to operate the splicing of the pipe segments.

[0009] A further technical solution of the present invention is: the splicing mechanism includes a first drive, a second drive, a third drive, a support arm and a movable part, one end of the support arm is movably connected to the pipe segment fixing mechanism through the movable part, the adjacent two sides of the pipe segment fixing mechanism are respectively connected to the output ends of the first drive and the second drive, the first drive is used to rotate the pipe segment fixing mechanism from horizontal to vertical, the second drive is used to rotate the pipe segment fixing mechanism to the outside of the support arm, and the third drive is used to drive the support arms to move closer to or away from each other.

[0010] After the segment fixing mechanism fixes the segment, the first driving action is performed to lift the segment from the ground and put it in a vertical state. At this time, the segment fixing mechanism rotates from horizontal to vertical; the second driving action further moves the segment in the vertical state, so that the segments on the two groups of segment fixing mechanisms are in an open and relative state. At this time, the segment fixing mechanism rotates from a vertical state to the outside of the support arm; then through the third driving action, the segment fixing mechanisms are brought close to each other, and the segments are also relatively close to complete the splicing of the segments to form an annular segment; for the segments that need to be installed with staggered seams, the present invention drives the splicing mechanism to rotate through the rotating mechanism, so that the annular segment on the segment fixing mechanism on the splicing mechanism rotates, so as to achieve staggered seams with the previous annular segment.

[0011] A further technical solution of the present invention is: the first drive includes a first winch and a first rope, one end of the first rope is connected to the first winch, and the other end of the first rope is placed above the movable part and connected to the pipe segment fixing mechanism; the second drive includes a second winch and a second rope, one end of the second rope is connected to the second winch, and the other end of the second rope is connected to the outside of the pipe segment fixing mechanism.

[0012] The segment fixing mechanism is controlled by connecting the first rope to the segment fixing mechanism and the second rope to the segment fixing mechanism, so that the segment is pulled up from the ground to a vertical state and then rotated to both sides until the openings are arranged relative to each other.

[0013] A further technical solution of the present invention is: a mounting seat is slidably provided at one end of the support arm away from the segment fixing mechanism, the third drive is placed on the mounting seat, and the output end of the third drive is connected to the support arm. The third drive is connected to the support arm to bring the two groups of splicing mechanisms closer to each other, so that the support arm slides closer on the mounting seat to complete the splicing of the segment.

[0014] A further technical solution of the present invention is that the pipe segments on a single group of the pipe segment fixing mechanism are semicircular, the pipe segments are first assembled into a semicircular shape, and then installed by the device of the present invention, which is convenient and quick to install.

[0015] A further technical solution of the present invention is: the rotating mechanism includes a pulley cylinder and a connecting piece, the pulley cylinder is divided into two groups and slidably arranged on the upper and lower surfaces of the moving platform respectively, and the two sides of the two groups of pulley cylinders are connected by the connecting piece.

[0016] When the pulley cylinder slides on the moving platform, the position between the annular segments can be adjusted; pulley cylinders are provided on the upper and lower surfaces to ensure stability during the sliding process; when the pulley cylinders are connected by connecting pieces, the pulley cylinders arranged above and below can be driven to move synchronously.

[0017] A further technical solution of the present invention is: a side jack is provided on the moving platform, and an output end of the side jack is connected to the connecting piece.

[0018] The side jack is actuated to make the pulley cylinder connected to the connector slide on the moving platform, thereby completing the position adjustment of the segment in the segment laying direction; in addition, adjustment over a longer distance can be completed by moving the moving platform.

[0019] A further technical solution of the present invention is: the rotating mechanism also includes a control box, in which a driving wheel, a driven wheel and a belt for connecting the driving wheel and the driven wheel are arranged, the driving wheel is provided with a rotating handle passing through the control box, and the driven wheel is connected to the splicing mechanism.

[0020] By turning the handle, the driving wheel rotates, the belt is transmitted to the driven wheel, and the driven wheel drives the splicing mechanism to rotate, so that the pipe segment on the pipe segment fixing part can be rotated to complete the staggered installation.

[0021] A further technical solution of the present invention is: the mobile station comprises a platform extending along the laying direction of the pipe segments, one end of the platform connected to the rotating mechanism is provided with a limiting protrusion, and the other end of the platform is provided with a counterweight block.

[0022] The limiting protrusion can prevent the rotating mechanism from detaching from the moving platform during the sliding process, and the counterweight block effectively ensures the force stability of the entire device to avoid collapse.

[0023] The present invention also provides a method for transporting and assembling subway tunnel segments. The method is based on the device and comprises the following steps:

[0024] S1: Assemble the segments into a semicircular shape, with the opening of the semicircular segment facing upward, and fix the segments with segment fixing pieces;

[0025] S2: the moving platform moves or the rotating mechanism moves along the moving platform to the splicing position, and the splicing mechanism rotates the pipe segment fixing mechanism along two mutually perpendicular planes, so that the openings of the pipe segments are arranged relatively, and the splicing mechanisms are close to each other, and the pipe segments are spliced ​​to form an annular pipe segment;

[0026] S3: The rotating mechanism drives the splicing mechanism to rotate, and the annular segments rotate synchronously to achieve staggered installation.

[0027] The beneficial effects of the present invention are as follows: in the present invention, the pipe segments are fixed by the pipe segment fixing mechanism, and then the pipe segments can be moved to the position to be laid by the moving platform; then the splicing mechanism drives the pipe segment fixing mechanism to rotate on two mutually perpendicular planes, so that the pipe segments placed on the ground are first rotated upward so that the pipe segments are in a vertical suspended state, and then rotated to both sides so that the openings of the pipe segments are relatively arranged, and finally the pipe segments are spliced ​​by bringing the splicing mechanisms closer to each other to form an annular pipe segment, and after the splicing is completed, when staggered connection is required, the splicing mechanism is driven to rotate by the rotating mechanism so that the annular pipe segment on the pipe segment fixing mechanism is rotated, and a staggered installation is formed for the last installed pipe segment; the device in the present invention can simultaneously meet the functions of pipe segment transportation, splicing and staggered installation; the structure is simple and the cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a stereoscopic diagram of a subway tunnel segment transportation and splicing device provided by the present invention;

[0029] Figure 2 It is a structural schematic diagram of the pipe segment fixing mechanism provided by the present invention;

[0030] Figure 3 It is a schematic diagram of the end structure of the pipe segment fixing mechanism provided by the present invention;

[0031] Figure 4It is a structural schematic diagram of the splicing mechanism provided by the present invention;

[0032] Figure 5 The present invention provides Figure 4 A top view of

[0033] Figure 6 It is a structural schematic diagram of the movable part provided by the present invention;

[0034] Figure 7 It is a structural schematic diagram of the rotating mechanism provided by the present invention;

[0035] Figure 8 It is a schematic diagram of the structure inside the control box provided by the present invention;

[0036] Fig. 9 It is a structural schematic diagram of the mobile station provided by the present invention.

[0037] Reference numerals:

[0038] 1. Segment fixing mechanism, 12. Side rope connection end, 13. Upper rope connection end, 14. Fixer control unit, 15. Segment fixer,

[0039] 2. Splicing mechanism, 21. First drive, 22. Second drive, 23. Third drive, 24. Support arm, 25. Movable part, 251. Connecting rod, 252. Bidirectional commutator, 211. First capstan, 212. First rope, 221. Second capstan, 222. Second rope, 26. Mounting seat, 201. Upper stopper, 202. Side stopper, 27. Axle, 213, Block;

[0040] 3. Rotating mechanism, 31. Pulley cylinder, 32. Connector, 33. Control box, 34. Driving wheel, 35. Driven wheel, 36. Belt, 37. Rotating handle,

[0041] 4. Mobile platform, 41. Platform, 42. Side jack, 43. Sliding bracket, 44. Counterweight, 45. Limiting protrusion, 421. Control lever, 46, pulley. DETAILED DESCRIPTION

[0042] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0043] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0044] Embodiment 1:

[0045] Figure 1-9 The present invention shows a subway tunnel segment transport and splicing device, which comprises a movable platform 4, a rotating mechanism 3, a splicing mechanism 2 and a segment fixing mechanism 1 which are connected in sequence. The rotating mechanism 3 can move along the segment laying direction. The rotating mechanism 3 is used to drive the splicing mechanism 2 to rotate. The segment fixing mechanism 1 is used to fix the segments. The splicing mechanism 2 is movably connected to the segment fixing mechanism 1. The splicing mechanism 2 is used to rotate the segment fixing mechanism 1 on two mutually perpendicular planes. The splicing mechanisms 2 are brought close to each other for segment splicing.

[0046] In the present invention, the pipe segments are fixed by a pipe segment fixing mechanism, and then the pipe segments can be moved to the position to be laid by a moving platform; then the splicing mechanism drives the pipe segment fixing mechanism to rotate on two mutually perpendicular planes, so that the pipe segments placed on the ground are first rotated upward so that the pipe segments are in a vertical suspended state, and then rotated to both sides so that the openings of the pipe segments are relatively arranged, and finally the pipe segments are spliced ​​by bringing the splicing mechanisms closer to each other to form an annular pipe segment. After the splicing is completed, when staggered connection is required, the splicing mechanism is driven to rotate by the rotating mechanism so that the annular pipe segment on the pipe segment fixing mechanism is rotated, and a staggered installation is formed for the last installed pipe segment; the device in the present invention can simultaneously meet the functions of pipe segment transportation, splicing and staggered installation; the structure is simple and the cost is low.

[0047] The present invention comprises a segment fixing mechanism, a splicing mechanism, a rotating mechanism and a moving platform; the segment fixing mechanism, the splicing mechanism, the rotating mechanism and the moving platform are connected in sequence to form a subway tunnel segment transportation and splicing test device; the segment fixing mechanism is provided with segment fixers 15 at the top and bottom, and the center is connected with the splicing mechanism 2 through a movable part 25, and the movable part 25 comprises a connecting rod and a two-way commutator connected with the connecting rod; the front end of the splicing mechanism is provided with a limiter, a rope passing through is provided inside, a winch corresponding to the rope is provided in the middle and rear part, and a jack and an axle body capable of controlling the splicing mechanism are provided at the tail; the four roller cylinders of the rotating mechanism symmetrically clamp the moving platform, the rotating mechanism disposed above the moving platform comprises a box body, a rotating mechanism is provided in the box body, and a rotating handle is provided outside the box body; the rear half of the moving platform is provided with a sliding leg with a roller, which can realize reciprocating motion, a counterweight is provided at the rear to maintain balance, and long-arm side jacks are provided on both sides, and the control rods of the side jacks are at the tail.

[0048] The present invention also provides a splicing method based on the subway tunnel segment transportation and splicing test device. In the initial state, the winch on the splicing mechanism is released, and the segment fixing mechanism is in a horizontal state under the influence of gravity. The segment initially assembled into a semicircle is connected to the segment fixing mechanism, and the position of the connected segment is comprehensively controlled by the sliding table and the rotating mechanism. After reaching the target position, the upper winch on the splicing mechanism is first rotated to gradually pull the segment fixing mechanism to a vertical state, and then the side winches on both sides of the splicing mechanism are rotated and the upper winch is controlled to appropriately loosen the upper rope to realize the rotation of the segment fixing mechanism to both sides, and the jack on the splicing mechanism is controlled to advance toward the middle to realize the connection of the two semicircular segments, and the overall rotation of the annular segment on the segment fixing mechanism is realized by rotating the rotating handle behind the rotating mechanism to realize the staggered installation of the segment, and finally the connection of the segment fixing mechanism to the segment is released to complete the segment transportation and assembly process.

[0049] In this embodiment, the moving platform 4 is movable.

[0050] In this embodiment, there are two groups of splicing mechanisms 2, and two groups of pipe segment fixing mechanisms 1, which correspond one to one with the splicing mechanisms 2. The one-to-one matching mode of two groups of splicing mechanisms and two groups of pipe segment fixing mechanisms makes it easier to operate the splicing of pipe segments.

[0051] In this embodiment, the splicing mechanism 2 includes a first drive 21, a second drive 22, a third drive 23, a support arm 24 and a movable part 25. One end of the support arm 24 is movably connected to the pipe segment fixing mechanism 1 through the movable part 25. The adjacent two sides of the pipe segment fixing mechanism 1 are respectively connected to the output ends of the first drive 21 and the second drive 22. The first drive 21 is used to rotate the pipe segment fixing mechanism 1 from horizontal to vertical. The second drive 22 is used to rotate the pipe segment fixing mechanism 1 to the outside of the support arm 24. The third drive 23 is used to drive the support arms 24 to move closer to or away from each other.

[0052] After the segment fixing mechanism fixes the segment, the first driving action is performed to lift the segment from the ground and put it in a vertical state. At this time, the segment fixing mechanism rotates from horizontal to vertical; the second driving action further moves the segment in the vertical state, so that the segments on the two groups of segment fixing mechanisms are in an open and relative state. At this time, the segment fixing mechanism rotates from a vertical state to the outside of the support arm; then through the third driving action, the segment fixing mechanisms are brought close to each other, and the segments are also relatively close to complete the splicing of the segments to form an annular segment; for the segments that need to be installed with staggered seams, the present invention drives the splicing mechanism to rotate through the rotating mechanism, so that the annular segment on the segment fixing mechanism on the splicing mechanism rotates, so as to achieve staggered seams with the previous annular segment.

[0053] In this embodiment, the movable member 25 includes a connecting rod 251 and a bidirectional commutator 252. One end of the connecting rod 251 is welded to the segment fixing mechanism 1, and the other end of the connecting rod 251 is connected to the support arm 24 via the bidirectional commutator 252. The bidirectional commutator 252 is a cross structure.

[0054] In this embodiment, the support arm 24 is provided with an upper stopper 201, a side stopper 202, a side opening and a bottom opening at one end close to the segment fixing mechanism 1. The side opening and the bottom opening are both connected to the movable member 25 to ensure that interference is avoided during the process of the first drive 21 and the second drive 22 driving the movable member 25 to rotate. The upper stopper 201 is used to limit the upper part of the movable member 25, and the side stopper 202 is used to limit one side of the movable member 25. In the process of the first drive 21 being used to lift the segment from the ground to a vertical state, the upper stopper 201 plays a limiting role. In the process of the second drive 22 being used to rotate the segment in a vertical state to a state relative to the opening, the support arm 24 limits the segment. When the second drive 22 is returned to its position, it is limited by the side stopper 202; the accurate splicing of the segment is completed.

[0055] In this embodiment, the side limiter 202 is disposed on a side where the two groups of support arms 24 are relatively close to each other.

[0056] In this embodiment, the first drive 21 includes a first winch 211 and a first rope 212, one end of the first rope 212 is connected to the first winch 211, and the other end of the first rope 212 is placed above the movable part 25 and connected to the pipe segment fixing mechanism 1, and the second drive 22 includes a second winch 221 and a second rope 222, one end of the second rope 222 is connected to the second winch 221, and the other end of the second rope 222 is connected to the outside of the pipe segment fixing mechanism 1.

[0057] The segment fixing mechanism is controlled by connecting the first rope to the segment fixing mechanism and the second rope to the segment fixing mechanism, so that the segment is pulled up from the ground to a vertical state and then rotated to both sides until the openings are arranged relative to each other.

[0058] In this embodiment, concealed grooves for accommodating the first rope 212 and the second rope 222 are provided on the top and the outer side of the support arm 24 .

[0059] In this embodiment, the first capstan 211 is placed above the support arm 24, and the second capstan 221 is placed outside the support arm 24 for easy operation.

[0060] In this embodiment, a side rope connection end 12 is provided on the outer side of the connection between the pipe segment fixing mechanism 1 and the movable part 25, and an upper rope connection end 13 is provided at one end of the connection between the pipe segment fixing mechanism 1 and the movable part 25. The upper rope connection end 13 is connected to the first rope 212, and the side rope connection end 12 is connected to the second rope 222.

[0061] In this embodiment, a mounting seat 26 is slidably provided at one end of the support arm 24 away from the segment fixing mechanism 1, the third drive 23 is placed on the mounting seat 26, and the output end of the third drive 23 is connected to the support arm 24. The third drive is connected to the support arm to bring the two groups of splicing mechanisms closer to each other, so that the support arm slides closer on the mounting seat to complete the splicing of the segments.

[0062] In this embodiment, a shaft 27 connected to the rotating mechanism 3 is provided on a side of the mounting seat 26 away from the supporting arm 24 .

[0063] In this embodiment, a third driver 23 is provided on the mounting seat 26 . The third driver 23 is a jack. The jack is welded to the support arm 24 , and the support arm 24 is restricted inside the mounting seat 26 by a clamping block 213 .

[0064] In this embodiment, the pipe segments on a single group of the pipe segment fixing mechanism 1 are semicircular. The pipe segments are first assembled into a semicircle, and then installed by the device of the present invention, which is convenient and quick to install.

[0065] In this embodiment, the segment fixing mechanism 1 is H-shaped. The middle part of the segment fixing mechanism 1 is connected to the support arm 24 through a movable part 25, and a side rope connecting end 12 is provided in the middle part of the outer side of the segment fixing mechanism 1. With reference to the segment fixing mechanism 1 being in a vertical state, an upper rope connecting end 13 is provided in the upper groove of the segment fixing mechanism 1.

[0066] In this embodiment, a retractable segment fixer 15 is provided at the end of the segment fixing mechanism 1. When the segment needs to be fixed, the segment fixer 15 is extended, and when the segment needs to be detached from the segment fixer 15, it is retracted to ensure the paving of the segment.

[0067] In this embodiment, a fixture control unit 14 is provided at one end of the segment fixer 15. The fixture control unit 14 includes a sleeve rod, a sleeve and a limit handle. One end of the sleeve is fixedly connected to the segment fixer 15 and the other end can slide along the sleeve rod. The limit handle is provided on the sleeve. The segment fixing mechanism 1 is provided with a limit groove that cooperates with the limit handle. When the segment fixing mechanism 1 needs to fix the segment, the limit handle is turned out from the limit groove. At this time, the sleeve can slide along the sleeve rod, thereby driving the segment fixer 15 to extend from the segment fixing mechanism 1 and fix on the positioning part of the segment. Then the sleeve is rotated so that the limit handle is stuck in the limit groove to complete the fixing of the segment. The segment fixer 15 is controlled by the fixture control unit 14 to realize the extension and retraction of the segment fixer 15, thereby achieving the function of fixing the segment.

[0068] In this embodiment, each end of the H-shaped segment fixing mechanism 1 is provided with a segment fixer 15 , which makes the fixation of the segment more firm and stable.

[0069] In this embodiment, the rotating mechanism 3 includes a pulley barrel 31 and a connecting member 32 . The pulley barrel 31 is composed of two groups, which are slidably disposed on the upper and lower surfaces of the moving platform 4 , respectively. Both sides of the two groups of pulley barrels 31 are connected by the connecting member 32 .

[0070] When the pulley cylinder slides on the moving platform, the position between the annular segments can be adjusted; pulley cylinders are provided on the upper and lower surfaces to ensure stability during the sliding process; when the pulley cylinders are connected by connecting pieces, the pulley cylinders arranged above and below can be driven to move synchronously.

[0071] In this embodiment, a side jack 42 is disposed on the moving platform 4 , and an output end of the side jack 42 is connected to the connecting member 32 .

[0072] The side jack is actuated to make the pulley cylinder connected to the connector slide on the moving platform, thereby completing the position adjustment of the segment in the segment laying direction; in addition, adjustment over a longer distance can be completed by moving the moving platform.

[0073] In this embodiment, the rotating mechanism 3 also includes a control box 33, in which a driving wheel 34, a driven wheel 35 and a belt 36 for connecting the driving wheel 34 and the driven wheel 35 are provided. The driving wheel 34 is provided with a rotating handle 37 that passes through the control box 33, and the driven wheel 35 is connected to the splicing mechanism 2.

[0074] By turning the handle, the driving wheel rotates, the belt is transmitted to the driven wheel, and the driven wheel drives the splicing mechanism to rotate, so that the pipe segment on the pipe segment fixing part can be rotated to complete the staggered installation.

[0075] In this embodiment, the shaft 27 is connected to the driven wheel 35 .

[0076] In this embodiment, the splicing device is used in the transportation and splicing test of subway tunnel segments.

[0077] In this embodiment, the movable platform 4 includes a platform 41 extending along the segment laying direction, one end of the platform 41 connected to the rotating mechanism 3 is provided with a limiting protrusion 45, and the other end of the platform 41 is provided with a counterweight block 44.

[0078] The limiting protrusion can prevent the rotating mechanism from detaching from the moving platform during the sliding process, and the counterweight block effectively ensures the force stability of the entire device to avoid collapse.

[0079] In this embodiment, the side jack 42 is controlled by a control rod 421 at the end of the platform 41 , the side jack 42 is welded to the platform 41 , and the output end 42 is connected to the connecting piece 32 of the rotating mechanism 3 .

[0080] In this embodiment, a sliding bracket 43 is provided at the end of the platform 41 , and a pulley 46 is installed below the sliding bracket 43 .

[0081] Embodiment 2:

[0082] A method for transporting and assembling subway tunnel segments, the method being based on the device described in Embodiment 1, the method comprising the following steps:

[0083] S1: Assemble the segments into a semicircular shape, with the opening of the semicircular segment facing upward, and fix the segments by using the segment fixing member 1;

[0084] S2: the moving platform 4 moves or the rotating mechanism 3 moves along the moving platform 4 to the splicing position, and the splicing mechanism 2 rotates the pipe segment fixing mechanism 1 along two mutually perpendicular planes, so that the openings of the pipe segments are arranged relatively, and the splicing mechanisms 2 are close to each other, and the splicing of the pipe segments is completed to form an annular pipe segment;

[0085] S3: The rotating mechanism 3 drives the splicing mechanism 2 to rotate, and the annular segments rotate synchronously to achieve staggered installation.

[0086] In this embodiment, a method for transporting and splicing subway tunnel segments includes the following steps:

[0087] S1: first assemble the segments into a semicircular shape, with the opening of the semicircular segment facing upwards, and in the initial state of the subway tunnel segment transportation and splicing test device, push the fixer control unit 14 to insert the segment fixer 15 on the segment fixing mechanism 1 into the corresponding groove of the segment to complete the segment fixing;

[0088] S2: After the segments are fixed, the subway tunnel segment transport and splicing test device is moved to the splicing position, and the first winch 211 on the splicing mechanism 2 is first rotated to gradually pull the segment fixing mechanism 1 to a vertical state, and then the second winches 221 on both sides of the splicing mechanism 2 are rotated and the first winch 211 is controlled to appropriately loosen the first rope 212 to realize the rotation of the segment fixing mechanism 1 to both sides, and the third drive 23 on the splicing mechanism 2 is controlled to advance toward the middle to realize the connection of the two semicircular segments, and the annular segment on the segment fixing mechanism 1 is rotated by rotating the rotating handle 37 behind the rotating mechanism 3 to realize the staggered installation of the segments;

[0089] S3: After the staggered installation of the pipe segments is completed, the rotating handle 37 is reset, and the fixer control unit 14 is pushed in the reverse direction to disengage the pipe segment fixing mechanism 1 from the groove on the pipe segment, and the second winches 221 on both sides of the splicing mechanism 2 are loosened, and the pipe segment fixing mechanism 1 is pushed straight, and the first winch 211 on the splicing mechanism 2 is loosened. The pipe segment fixing mechanism 1 returns to the horizontal position under the action of gravity, and the subway tunnel pipe segment transportation splicing test device is pushed away from the site.

[0090] In this embodiment, in the initial state, the semicircular segment opening is placed upward, and the segment fixing mechanism 1 rotates downward under the action of gravity until the segment fixing mechanism 1 is horizontal, and the segment fixing piece 15 is extended to be fixed on the segment. The segment fixing mechanism 1 is pulled by the first drive 21, and the segment fixing mechanism 1 is rotated upward to be vertical. At this time, the segment opening is facing the end of the support arm 24. The segment fixing mechanism 1 is pulled by the second drive 22 to continue to move, and the segment fixing mechanism 1 moves toward the outside of the support arm 24. At this time, the segment opening is facing the outside of the support arm 24. The third drive makes the support arms 24 approach each other to complete the splicing of the segments.

[0091] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A subway tunnel segment transport and splicing device, characterized in that: The invention comprises a movable platform (4), a rotating mechanism (3), a splicing mechanism (2) and a pipe segment fixing mechanism (1) which are connected in sequence. The rotating mechanism (3) can move along the pipe segment laying direction. The rotating mechanism (3) is used to drive the splicing mechanism (2) to rotate. The pipe segment fixing mechanism (1) is used to fix the pipe segment. The splicing mechanism (2) is movably connected to the pipe segment fixing mechanism (1). The splicing mechanism (2) is used to rotate the pipe segment fixing mechanism (1) on two mutually perpendicular planes. The splicing mechanisms (2) are close to each other for splicing pipe segments.

2. The subway tunnel segment transport and splicing device according to claim 1, characterized in that: The splicing mechanisms (2) are in two groups, and the pipe segment fixing mechanisms (1) are in two groups and correspond one to one with the splicing mechanisms (2).

3. The subway tunnel segment transport and splicing device according to claim 2 is characterized by: The splicing mechanism (2) comprises a first drive (21), a second drive (22), a third drive (23), a support arm (24) and a movable part (25); one end of the support arm (24) is movably connected to the segment fixing mechanism (1) through the movable part (25); two adjacent sides of the segment fixing mechanism (1) are respectively connected to the output ends of the first drive (21) and the second drive (22); the first drive (21) is used to rotate the segment fixing mechanism (1) from horizontal to vertical; the second drive (22) is used to rotate the segment fixing mechanism (1) to the outside of the support arm (24); and the third drive (23) is used to drive the support arms (24) to move closer to or farther away from each other.

4. The subway tunnel segment transport and splicing device according to claim 3 is characterized by: The first drive (21) comprises a first winch (211) and a first rope (212), one end of the first rope (212) is connected to the first winch (211), and the other end of the first rope (212) is placed above the movable part (25) and connected to the pipe segment fixing mechanism (1), and the second drive (22) comprises a second winch (221) and a second rope (222), one end of the second rope (222) is connected to the second winch (221), and the other end of the second rope (222) is connected to the outside of the pipe segment fixing mechanism (1).

5. The subway tunnel segment transport and splicing device according to claim 3 is characterized by: A mounting seat (26) is slidably provided at one end of the support arm (24) away from the segment fixing mechanism (1); the third drive (23) is placed on the mounting seat (26); and an output end of the third drive (23) is connected to the support arm (24).

6. A subway tunnel segment transport and splicing device according to any one of claims 1 to 5, characterized in that: The rotating mechanism (3) comprises a pulley barrel (31) and a connecting member (32). The pulley barrel (31) is composed of two groups which are slidably arranged on the upper and lower surfaces of the moving platform (4) respectively. The two sides of the two groups of pulley barrels (31) are connected by the connecting member (32).

7. The subway tunnel segment transport and splicing device according to claim 6, characterized in that: The moving platform (4) is provided with a side jack (42), and the output end of the side jack (42) is connected to the connecting member (32).

8. The subway tunnel segment transport and splicing device according to claim 6, characterized in that: The rotating mechanism (3) further comprises a control box (33), wherein a driving wheel (34), a driven wheel (35) and a belt (36) for connecting the driving wheel (34) and the driven wheel (35) are arranged in the control box (33), a rotating handle (37) passing through the control box (33) is arranged on the driving wheel (34), and the driven wheel (35) is connected to the splicing mechanism (2).

9. A subway tunnel segment transport and splicing device according to any one of claims 1 to 5, characterized in that: The movable platform (4) comprises a platform (41) extending along the segment laying direction, one end of the platform (41) connected to the rotating mechanism (3) is provided with a limiting protrusion (45), and the other end of the platform (41) is provided with a counterweight (44).

10. A method for transporting and assembling subway tunnel segments, characterized in that: The method is based on the device according to any one of claims 1 to 9, and the method comprises the following steps: S1: Assemble the pipe segments into a semicircular shape, with the opening of the semicircular pipe segment facing upward, and fix the pipe segments using pipe segment fixing pieces (1); S2: the moving platform (4) moves or the rotating mechanism (3) moves along the moving platform (4) to the splicing position, and the splicing mechanism (2) rotates the pipe segment fixing mechanism (1) along two mutually perpendicular planes, so that the openings of the pipe segments are arranged relative to each other, and the splicing mechanisms (2) are close to each other, so that the pipe segments are spliced ​​and an annular pipe segment is formed; S3: The rotating mechanism (3) drives the splicing mechanism (2) to rotate, and the annular segments rotate synchronously to achieve staggered installation.

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