Segment hoisting equipment for shield tunnel

Abstract

The present invention provides a segment hoisting device for shield tunnels, which relates to the technical field of tunnel construction equipment and includes a positioning mechanism and a clamping mechanism; the positioning mechanism includes a cross beam, and the cross beam is formed with a guiding portion extending along the length direction of the cross beam; the clamping mechanism includes a positioning rod, a first elastic member, a second elastic member, a first clamping assembly and a second clamping assembly. The positioning rod is connected to the cross beam along the length direction of the cross beam, and the positioning rod is located within the guiding portion; both the first clamping assembly and the second clamping assembly are slidably arranged on the positioning rod. The first clamping assembly is formed with a first notch, and the second clamping assembly is formed with a second notch. Both the first elastic member and the second elastic member are sleeved on the positioning rod, and the first elastic member is located between one end of the first clamping assembly and the guiding portion, and the second elastic member is located between the other end of the second clamping assembly and the guiding portion, so that the first notch and the second notch are oppositely butted to form a positioning space.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel construction equipment, and in particular to a shield tunnel segment hoisting device. Background Art

[0002] The lifting of shield tunnel segments is an important part of shield construction, which involves the lifting, transportation and installation of segments.

[0003] The existing pipe segment lifting process mostly uses equipment such as suction cup machines, pipe segment lifting devices or soft contact props. For suction cup machines and pipe segment lifting devices, since both equipment need to contact the pipe segment, collisions are easy to occur during the lifting process, resulting in problems such as damage to the pipe segment or damage to the appearance. Soft contact props use the bolt structure on the pipe segment and use a grabbing method to lift the pipe segment, which can reduce the problem of pipe segment damage to a certain extent.

[0004] However, most existing grasping structures adopt a columnar structure. Since the size of the positioning hole needs to be adapted to the bolt, the size is small. When connecting, it is necessary to manually align the grasping structure with the bolt and put the bolt into the positioning hole of the grasping structure, which greatly affects the working efficiency.

[0005] Therefore, there is an urgent need to provide a shield tunnel segment hoisting device to solve the problems existing in the prior art to a certain extent. Summary of the invention

[0006] The purpose of the present invention is to provide a shield tunnel segment lifting device to solve the problem that the bolt connection with the segment in the existing lifting equipment has a small structural size and requires manual assembly, which affects the working efficiency.

[0007] The present invention provides a shield tunnel segment lifting equipment, including a positioning mechanism and a clamping mechanism; the positioning mechanism includes a crossbeam, and the crossbeam is formed with a guide portion extending along the length direction of the crossbeam; the clamping mechanism includes a positioning rod, a first elastic member, a second elastic member, a first clamping assembly and a second clamping assembly, the positioning rod is connected to the crossbeam along the length direction of the crossbeam, and the positioning rod is located in the guide portion; the first clamping assembly and the second clamping assembly are both slidably arranged on the positioning rod, the first clamping assembly is formed with a first notch, and the second clamping assembly is formed with a second notch, the first elastic member and the second elastic member are both sleeved on the positioning rod, and the first elastic member is located between the first clamping assembly and one end of the guide portion, and the second elastic member is located between the second clamping assembly and the other end of the guide portion, so that the first notch and the second notch are connected to form a positioning space.

[0008] As an optional implementation manner, the cross beam includes a beam body, a first connecting arm and a second connecting arm; the guiding portion is formed along the length direction of the beam body, and the first connecting arm and the second connecting arm are oppositely connected to both ends of the beam body for connecting a hoisting device; first through holes and second through holes communicating with the guiding portion are further formed at both ends of the beam body, the clamping mechanism further includes a fastening member, and both ends of the positioning rod respectively pass through the first through hole and the second through hole and are connected to the fastening member.

[0009] As an optional implementation manner, the first clamping assembly includes a first positioning seat, a first movable block and a first clamping block, and the second clamping assembly includes a second positioning seat, a second movable block and a second clamping block; both the first positioning seat and the second positioning seat are U-shaped, both ends of the first movable block are connected to the first positioning seat, and both ends of the second movable block are connected to the second positioning seat; both the first movable block and the second movable block are formed with mating holes, the positioning rod passes through the mating holes, so that the first movable block and the second movable block can slide on the positioning rod in directions approaching or separating from each other; the first clamping block is connected to the first positioning seat, and the first notch is formed on the first clamping block, the second clamping block is connected to the second positioning seat, and the second notch is formed on the second clamping block.

[0010] As an optional implementation manner, a first limiting groove and a second limiting groove are formed on the beam body, the first limiting groove and the second limiting groove are formed on both sides of the guiding portion, and both the first limiting groove and the second limiting groove are waist-shaped grooves; both the first movable block and the second movable block include a main body portion, a first mating portion and a second mating portion, the mating hole is formed on the main body portion, the first mating portion and the second mating portion are oppositely arranged at both ends of the main body portion, and the first mating portion is arranged corresponding to the first limiting groove, and the second mating portion is arranged corresponding to the second limiting groove.

[0011] As an optional implementation manner, the first movable block and the second movable block further include a plurality of rollers, the plurality of rollers are circumferentially distributed along the first mating portion and the second mating portion, and the rollers can roll relative to the first mating portion and the second mating portion.

[0012] As an alternative implementation manner, the first clamping assembly includes a first connecting rod, a first limiting member, a first sleeve and a first link rod, and the second clamping assembly includes a second connecting rod, a second limiting member, a second sleeve and a second link rod; a first alignment hole is formed on the first positioning seat, and a second alignment hole is formed at a position corresponding to the first alignment hole on the first clamping block. A first limiting portion is formed at one end of the first connecting rod, and the diameter of the first limiting portion is larger than the aperture of the first alignment hole; the other end of the first connecting rod passes through the second alignment hole and is connected to the first limiting member, and the diameter of the first limiting member is larger than the diameter of the second alignment hole; one end of the first link rod is rotatably connected to the first limiting portion, and the other end is rotatably connected to the second sleeve. The second sleeve is connected to the second movable block, and the second sleeve can slide on the positioning rod; a third alignment hole is formed on the second positioning seat, and a fourth alignment hole is formed at a position corresponding to the third alignment hole on the second clamping block. A second limiting portion is formed at one end of the second connecting rod, and the diameter of the second limiting portion is larger than the aperture of the third alignment hole; the other end of the second connecting rod passes through the fourth alignment hole and is connected to the second limiting member, and the diameter of the second limiting member is larger than the diameter of the fourth alignment hole; one end of the second link rod is rotatably connected to the second limiting portion, and the other end is rotatably connected to the first sleeve. The first sleeve is connected to the first movable block, and the first sleeve can slide on the positioning rod.

[0013] As an alternative implementation manner, the first clamping assembly further includes a third elastic member, and the second clamping assembly further includes a fourth elastic member; the third elastic member is sleeved on the first connecting rod and is located between the first clamping block and the first limiting member; the fourth elastic member is sleeved on the second connecting rod and is located between the second clamping block and the second limiting member.

[0014] As an alternative implementation manner, the first clamping assembly further includes a first limiting nail, and the second clamping assembly further includes a second limiting nail; the first limiting nail is connected to the first clamping block, and the second limiting nail is connected to the second clamping block. The axis of the first limiting nail is perpendicular to the first clamping block, and the axis of the second limiting nail is perpendicular to the second clamping block; both the first limiting nail and the second limiting nail include a head portion and a guide rod portion. The diameter of the head portion is larger than the diameter of the guide rod portion. A first guide hole and a second guide hole are formed at the bottom of the beam body along the length direction of the beam body. The size of the first guide hole is adapted to the diameter of the head portion, and the size of the second guide hole is adapted to the diameter of the guide rod portion. A first expansion portion and a second expansion portion are formed in the second guide hole. The diameters of both the first expansion portion and the second expansion portion are adapted to the diameter of the head portion.

[0015] As an optional implementation, the side edges of the first clamping block and the second clamping block are both guide bevel edges, and after the first clamping block and the second clamping block are attached, the guide bevel edges of the first clamping block and the second clamping block form a V shape.

[0016] As an optional implementation, a first lifting ear portion is formed at one end of the first connecting arm away from the beam body, and a second lifting ear portion is formed at one end of the second connecting arm away from the beam body.

[0017] Compared with the prior art, the shield tunnel segment hoisting equipment provided by the present invention has the following advantages:

[0018] The shield tunnel segment lifting equipment provided by the present invention includes a positioning mechanism and a clamping mechanism; the positioning mechanism includes a crossbeam, and the crossbeam is formed with a guide portion extending along the length direction of the crossbeam; the clamping mechanism includes a positioning rod, a first elastic member, a second elastic member, a first clamping assembly and a second clamping assembly, the positioning rod is connected to the crossbeam along the length direction of the crossbeam, and the positioning rod is located in the guide portion; the first clamping assembly and the second clamping assembly are both slidably arranged on the positioning rod, the first clamping assembly is formed with a first notch, and the second clamping assembly is formed with a second notch, the first elastic member and the second elastic member are both sleeved on the positioning rod, and the first elastic member is located between the first clamping assembly and one end of the guide portion, and the second elastic member is located between the second clamping assembly and the other end of the guide portion, so that the first notch and the second notch are connected to form a positioning space.

[0019] From this analysis, it can be known that the crossbeam can provide a mounting base for the positioning rod, and the guide portion formed along the length direction of the crossbeam can accommodate and limit the moving trajectory of the first clamping assembly and the second clamping assembly. It can be understood that, since the first elastic member and the second elastic member in the present application are both sleeved on the positioning rod, and the first elastic member is located between the first clamping assembly and one end of the guide portion, and the second elastic member is located between the second clamping assembly and one end of the guide portion, therefore, one end of the first elastic member and one end of the second elastic member can abut against the guide portion, and the other end abuts against the corresponding first clamping assembly and second clamping assembly, so that the first elastic member and the second elastic member can always keep the first clamping assembly and the second clamping assembly in a state of abutting each other.

[0020] Since the first clamping component in the present application is formed with a first notch and the second clamping component is formed with a second notch, when the first clamping component and the second clamping component are in a docked state, a positioning space for accommodating the bolts on the pipe segment can be formed, and under the action of the first elastic member and the second elastic member, when the bolts on the pipe segment enter the positioning space, the bolts can be clamped, thereby achieving clamping, positioning and lifting of the pipe segment.

[0021] It is understandable that during the lifting process, the lifting equipment can be connected to the beam to achieve the lifting and transportation of the pipe segment.

[0022] During actual assembly, after the crossbeam is connected to the lifting device, the lifting device moves the crossbeam in the direction of the bolts close to the pipe segment until it contacts the sides of the first clamping assembly and the second clamping assembly. When the bolts contact the first clamping assembly and the second clamping assembly, as the lifting device continues to move, the bolts can push the first clamping assembly and the second clamping assembly apart, that is, the first clamping assembly and the second clamping assembly can move away from each other, compressing the first elastic member and the second elastic member.

[0023] When the bolt reaches the positioning space formed by the first notch and the second notch, the first elastic member and the second elastic member rebound, causing the first clamping assembly and the second clamping assembly to move toward each other, thereby clamping the bolt on the pipe segment and realizing the assembly of the overall clamping mechanism and the pipe segment.

[0024] Since the connection process between the pipe segment and the clamping mechanism in the present application does not require manual alignment and insertion, the operation efficiency can be greatly improved. In addition, the bolts of the pipe segment are clamped by the first notch and the second notch forming a positioning space, which can also improve the adaptability to pipe segment bolts of different sizes to a certain extent, making the overall equipment more versatile. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A schematic diagram of the connection between the shield tunnel segment hoisting equipment and the segments provided in an embodiment of the present invention;

[0027] Figure 2 A schematic structural diagram of a shield tunnel segment hoisting device from a first perspective provided by an embodiment of the present invention;

[0028] Figure 3Schematic diagram of the cooperation between the clamping mechanism and the cross beam in the segment hoisting equipment provided by the embodiment of the present invention;

[0029] Figure 4 Schematic cross-sectional view of the cross beam in the segment hoisting equipment provided by the embodiment of the present invention;

[0030] Figure 5 Schematic structural diagram of the clamping mechanism in the segment hoisting equipment provided by the embodiment of the present invention;

[0031] Figure 6 Schematic cross-sectional view of the clamping mechanism in the segment hoisting equipment provided by the embodiment of the present invention;

[0032] Figure 7 Schematic structural diagram of the cooperation between the first clamping assembly and the segment in the segment hoisting equipment provided by the embodiment of the present invention;

[0033] Figure 8 Schematic structural diagram of the first clamping assembly in the segment hoisting equipment provided by the embodiment of the present invention;

[0034] Figure 9 Exploded view of the first clamping assembly in the segment hoisting equipment provided by the embodiment of the present invention.

[0035] In the figure: 1 - cross beam; 101 - beam body; 1011 - guiding part; 1012 - first through hole; 1013 - second through hole; 1014 - first limiting groove; 1015 - first guiding hole; 1016 - second guiding hole; 1017 - first expansion part; 1018 - second expansion part; 102 - first connecting arm; 1021 - first lifting ear part; 103 - second connecting arm; 1031 - second lifting ear part; 2 - positioning rod; 201 - fastener; 202 - first elastic part; 203 - second elastic part; 3 - first clamping assembly; 301 - first positioning seat; 3011 - first alignment hole; 302 - first movable block; 3021 - main body part; 3022 - first matching part; 3023 - second matching part; 303 - first clamping block; 3031 - first notch; 3032 - guiding bevel edge; 3033 - second alignment hole; 304 - roller; 305 - first connecting rod; 306 - first limiting part; 307 - first sleeve; 308 - first link; 309 - third elastic part; 310 - first limiting pin; 3101 - end head part; 3102 - guide rod part; 4 - second clamping assembly; 401 - second positioning seat; 402 - second movable block; 403 - second clamping block; 4031 - second notch; 404 - second limiting part; 405 - second sleeve; 406 - second link; 407 - fourth elastic part; 408 - second limiting pin; 5 - segment; 501 - bolt. Detailed implementation manners

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part rather than all of the embodiments of this application. Components of the embodiments of this application generally described and illustrated in the accompanying drawings herein may be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of this application provided in the drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of this application without creative efforts shall fall within the scope of protection of this application.

[0037] In the description of the embodiments of this application, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship in which the inventive product is customarily placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and should not be construed as indicating or implying relative importance.

[0038] In addition, terms such as "horizontal" and "vertical" do not mean that the components are required to be absolutely horizontal or hanging, but may be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but may be slightly inclined.

[0039] In the description of the embodiments of this application, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected to" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the connection inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] As used herein, the term "and / or" includes any one of the listed related items and any combination of any two or more of them.

[0041] For ease of description, spatial relationship terms such as "above", "upper", "below", and "lower" may be used herein to describe the relationship of one element to another as shown in the accompanying drawings. Such spatial relationship terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings.

[0042] The terms used herein are for the purpose of describing various examples only and are not intended to limit the present disclosure. Unless the context clearly dictates otherwise, the singular forms are also intended to include the plural forms. The terms "comprising", "including", and "having" enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof that exist, but do not preclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0043] Due to manufacturing techniques and / or tolerances, variations in the shapes shown in the accompanying drawings may occur. Accordingly, the examples described herein are not limited to the specific shapes shown in the accompanying drawings, but include changes in shape that occur during manufacturing.

[0044] The features of the examples described herein may be combined in various ways that will be apparent after understanding the disclosure of the present application. In addition, although the examples described herein have various configurations, as will be apparent after understanding the disclosure of the present application, other configurations are possible. Additionally, the technical solutions between various embodiments may be combined with each other, but it must be based on the fact that those skilled in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present application.

[0045] As Figures 1-9 shown, the present invention provides a lifting device for a segment 5 of a shield tunnel, including a positioning mechanism and a clamping mechanism; the positioning mechanism includes a cross beam 1, and the cross beam 1 is formed with a guiding portion 1011 extending along the length direction of the cross beam 1; the clamping mechanism includes a positioning rod 2, a first elastic member 202, a second elastic member 203, a first clamping assembly 3, and a second clamping assembly 4. The positioning rod 2 is connected to the cross beam 1 along the length direction of the cross beam 1, and the positioning rod 2 is located within the guiding portion 1011; both the first clamping assembly 3 and the second clamping assembly 4 are slidably disposed on the positioning rod 2. The first clamping assembly 3 is formed with a first notch 3031, and the second clamping assembly 4 is formed with a second notch 4031. Both the first elastic member 202 and the second elastic member 203 are sleeved on the positioning rod 2, and the first elastic member 202 is located between the first clamping assembly 3 and one end of the guiding portion 1011, and the second elastic member 203 is located between the second clamping assembly 4 and the other end of the guiding portion 1011, so that the first notch 3031 and the second notch 4031 are docked with each other to form a positioning space.

[0046] Compared with the prior art, the segment 5 hoisting device provided by the present invention has the following advantages:

[0047] For the segment 5 hoisting device provided by the present invention, the cross beam 1 can provide an installation basis for the positioning rod 2, and the guiding portion 1011 formed along the length direction of the cross beam 1 can accommodate and define the moving trajectories of the first clamping assembly 3 and the second clamping assembly 4. It can be understood that since the first elastic member 202 and the second elastic member 203 in the present application are both sleeved on the positioning rod 2, and the first elastic member 202 is located between one end of the first clamping assembly 3 and the guiding portion 1011, and the second elastic member 203 is located between one end of the second clamping assembly 4 and the guiding portion 1011, therefore, one end of the first elastic member 202 and one end of the second elastic member 203 can abut against the guiding portion 1011, and the other end abuts against the corresponding first clamping assembly 3 and second clamping assembly 4, so that the first clamping assembly 3 and the second clamping assembly 4 can always be kept in a state of abutting against each other by the first elastic member 202 and the second elastic member 203.

[0048] And since the first clamping assembly 3 is formed with a first notch 3031 and the second clamping assembly 4 is formed with a second notch 4031 in the present application, therefore, when the first clamping assembly 3 and the second clamping assembly 4 are in a butting state, a positioning space for accommodating the bolt 501 on the segment 5 can be formed, and under the action of the first elastic member 202 and the second elastic member 203, when the bolt 501 on the segment 5 enters the positioning space, the bolt 501 can be clamped, so as to realize the clamping positioning and hoisting of the segment 5.

[0049] It can be understood that during the hoisting process, the hoisting device can be connected to the cross beam 1, so as to realize the hoisting and transfer of the segment 5.

[0050] During actual assembly, after the cross beam 1 is connected to the hoisting device, the hoisting device moves the cross beam 1 towards the direction close to the bolt 501 on the segment 5 until it contacts the sides of the first clamping assembly 3 and the second clamping assembly 4. When the bolt 501 contacts the first clamping assembly 3 and the second clamping assembly 4, as the hoisting device continues to move, the bolt 501 can push the first clamping assembly 3 and the second clamping assembly 4 away, that is, the first clamping assembly 3 and the second clamping assembly 4 can move in a direction away from each other, compressing the first elastic member 202 and the second elastic member 203.

[0051] After the bolt 501 reaches the positioning space formed by the first notch 3031 and the second notch 4031, the first elastic member 202 and the second elastic member 203 rebound, causing the first clamping assembly 3 and the second clamping assembly 4 to move in a direction close to each other, so as to clamp the bolt 501 on the segment 5 and realize the assembly of the overall clamping mechanism and the segment 5.

[0052] Since the connection process between the segment 5 and the clamping mechanism in this application does not require manual alignment and insertion, the operation efficiency can be greatly improved. Moreover, by using the first notch 3031 and the second notch 4031 to dock and form a positioning space to clamp the bolt 501 of the segment 5, the adaptability to bolts 501 of segments 5 with different sizes can be improved to a certain extent, making the overall equipment more versatile.

[0053] Preferably, as Figures 1-3 shown, the sides of the first clamping block 303 and the second clamping block 403 in this application are both guiding bevels 3032, and after the first clamping block 303 and the second clamping block 403 are fitted together, the guiding bevels 3032 of the first clamping block 303 and the second clamping block 403 form a V shape.

[0054] Since the clamping mechanism provided in this application moves from the side of the bolt 501 of the segment 5 towards the direction close to the bolt 501 during actual operation, by making the sides of the first clamping block 303 and the second clamping block 403 both guiding bevels 3032, a V-shaped guiding structure can be formed after the first clamping block 303 and the second clamping block 403 are docked. Thus, during the approaching process, no matter whether the bolt 501 contacts the first clamping block 303 or the second clamping block 403 first, it can push the first clamping block 303 or the second clamping block 403 to move, thereby opening the positioning space and finally achieving the purpose of clamping the bolt 501 by the first clamping block 303 and the second clamping block 403 in the positioning space.

[0055] It can be understood that the bolt 501 in this application includes an end portion and a rod portion. The diameter of the end portion is larger than that of the rod portion and larger than the diameter of the positioning space. Thus, after clamping, the end portion with a larger diameter can ensure the stable clamping and lifting of the bolt 501 by the first clamping block 303 and the second clamping block 403.

[0056] It should be further noted here that the first clamping block 303 and the second clamping block 403 in this application are approximately triangular structures, and rolling structures such as balls can be further installed on the two bevel edges of the first clamping block 303 and the second clamping block 403. Thus, when contacting the bolt 501, the sliding friction can be converted into rolling friction, making the process of the rod portion of the bolt 501 entering the positioning space smoother.

[0057] It should be further noted here that in this application, both the first elastic member 202 and the second elastic member 203 are compression springs, and the compression springs are always in a compressed state. Therefore, during the actual assembly process, when the rod portion first contacts the first clamping block 303, as the operation progresses, the first clamping block 303 is pushed by the rod portion, further compressing the first elastic member 202. And the space released by the first clamping block 303 will, under the action of the rebound of the second elastic member 203. Therefore, even if there is a misalignment between the bolt 501 and the positioning space during the initial alignment, it does not affect the bolt 501 finally entering the positioning space, thus improving the fault tolerance of the overall equipment connection process to a certain extent.

[0058] As Figure 1 shown, the cross beam 1 in this application includes a beam body 101, a first connecting arm 102, and a second connecting arm 103; a guiding portion 1011 is formed along the length direction of the beam body 101, and the first connecting arm 102 and the second connecting arm 103 are oppositely connected to both ends of the beam body 101 for connecting a lifting device; first through holes 1012 and second through holes 1013 communicating with the guiding portion 1011 are further formed at both ends of the beam body 101, and the clamping mechanism further includes a fastener 201. The two ends of the positioning rod 2 respectively pass through the first through hole 1012 and the second through hole 1013 and are connected to the fastener 201.

[0059] Both ends of the beam body 101 provided in this application can be directly connected to the lifting device, and the connection can be achieved by directly welding lifting lugs at both ends of the beam body 101. And this application further installs the first connecting arm 102 and the second connecting arm 103 at both ends of the beam body 101, which can, to a certain extent, increase the distance between the lifting device and the beam body 101, thereby providing sufficient space for the connection between the lifting device and the cross beam 1 and avoiding interference with the beam body 101.

[0060] The first connecting arm 102 and the second connecting arm 103 can be connected to the beam body 101 by welding, but preferably in this application, flange plates are installed at the ends of the first connecting arm 102 and the second connecting arm 103 and at the ends of the beam body 101. On the one hand, it can increase the contact area, and on the other hand, a plurality of bolt 501 connecting pieces can be arranged circumferentially on the flange plate to achieve the detachable connection between the first connecting arm 102 and the second connecting arm 103 and the beam body 101.

[0061] Optionally, as Figures 1-3As shown, the first clamping assembly 3 in the present application includes a first positioning seat 301, a first movable block 302, and a first clamping block 303, and the second clamping assembly 4 includes a second positioning seat 401, a second movable block 402, and a second clamping block 403; both the first positioning seat 301 and the second positioning seat 401 are U-shaped, both ends of the first movable block 302 are connected to the first positioning seat 301, and both ends of the second movable block 402 are connected to the second positioning seat 401; both the first movable block 302 and the second movable block 402 are formed with mating holes, and the positioning rod 2 passes through the mating holes, enabling the first movable block 302 and the second movable block 402 to slide on the positioning rod 2 in directions approaching or separating from each other; the first clamping block 303 is connected to the first positioning seat 301, and a first notch 3031 is formed on the first clamping block 303, the second clamping block 403 is connected to the second positioning seat 401, and a second notch 4031 is formed on the second clamping block 403.

[0062] Both the first movable block 302 and the second movable block 402 in the present application are of a cylindrical structure, both the first positioning seat 301 and the second positioning seat 401 are U-shaped, and both the first movable block 302 and the second movable block 402 can be connected to the first positioning seat 301 and the second positioning seat 401 through pin shafts.

[0063] Optionally, as Figures 1-4 shown, a first limiting groove 1014 and a second limiting groove are formed on the beam body 101 in the present application. The first limiting groove 1014 and the second limiting groove are formed on both sides of the guiding portion 1011, and both the first limiting groove 1014 and the second limiting groove are waist-shaped grooves; both the first movable block 302 and the second movable block 402 include a main body portion 3021, a first mating portion 3022, and a second mating portion 3023. The mating hole is formed on the main body portion 3021, the first mating portion 3022 and the second mating portion 3023 are oppositely arranged at both ends of the main body portion 3021, and the first mating portion 3022 is arranged corresponding to the first limiting groove 1014, and the second mating portion 3023 is arranged corresponding to the second limiting groove.

[0064] In the present application, the widths of the first limiting groove 1014 and the second limiting groove are greater than the width of the guiding portion 1011, so as to be able to match the sizes of the first mating portion 3022 and the second mating portion 3023 arranged at both ends of the main body portion 3021, and utilize the cooperation between the first mating portion 3022 and the second mating portion 3023 and the first limiting groove 1014 and the second limiting groove to achieve axial limiting of the first movable block 302 and the second movable block 402, and avoid the problem of offset of the first movable block 302 and the second movable block 402 during the movement along the length direction of the beam body 101.

[0065] Optionally, as Figure 5As shown, the first movable block 302 and the second movable block 402 in the present application further include a plurality of rollers 304. The plurality of rollers 304 are circumferentially distributed along the first mating portion 3022 and the second mating portion 3023, and the rollers 304 can roll relative to the first mating portion 3022 and the second mating portion 3023.

[0066] The rollers 304 in the present application can rotate relative to the first mating portion 3022 and the second mating portion 3023. During actual assembly, a rotating shaft can be used to realize the rotational connection between the rollers 304 and the first mating portion 3022 and the second mating portion 3023. A part of the rollers 304 in the present application can protrude beyond the edges of the first mating portion 3022 and the second mating portion 3023, so as to be able to contact the inner walls of the first limiting groove 1014 and the second limiting groove, converting sliding friction into rolling friction, thereby reducing the frictional force and making the movement process between the first clamping assembly 3 and the second clamping assembly 4 smoother.

[0067] Optionally, as Figures 5-9 shown, the first clamping assembly 3 in the present application includes a first connecting rod 305, a first limiting member 306, a first sleeve 307 and a first link 308. The second clamping assembly 4 includes a second connecting rod, a second limiting member 404, a second sleeve 405 and a second link 406. A first alignment hole 3011 is formed on the first positioning seat 301. A second alignment hole 3033 is formed at the position of the first clamping block 303 corresponding to the first alignment hole 3011. A first limiting portion is formed at one end of the first connecting rod 305, and the diameter of the first limiting portion is greater than the aperture of the first alignment hole 3011. The other end of the first connecting rod 305 passes through the second alignment hole 3033 and is connected to the first limiting member 306. The diameter of the first limiting member 306 is greater than the diameter of the second alignment hole 3033. One end of the first link 308 is rotatably connected to the first limiting portion, and the other end is rotatably connected to the second sleeve 405. The second sleeve 405 is connected to the second movable block 402, and the second sleeve 405 can slide on the positioning rod 2. A third alignment hole is formed on the second positioning seat 401. A fourth alignment hole is formed at the position of the second clamping block 403 corresponding to the third alignment hole. A second limiting portion is formed at one end of the second connecting rod, and the diameter of the second limiting portion is greater than the aperture of the third alignment hole. The other end of the second connecting rod passes through the fourth alignment hole and is connected to the second limiting member 404. The diameter of the second limiting member 404 is greater than the diameter of the fourth alignment hole. One end of the second link 406 is rotatably connected to the second limiting portion, and the other end is rotatably connected to the first sleeve 307. The first sleeve 307 is connected to the first movable block 302, and the first sleeve 307 can slide on the positioning rod 2.

[0068] Furthermore, as Figures 6-9As shown, the first clamping assembly 3 in the present application further includes a first limit pin 310, and the second clamping assembly 4 further includes a second limit pin 408; the first limit pin 310 is connected to the first clamping block 303, and the second limit pin 408 is connected to the second clamping block 403, and the axis of the first limit pin 310 is perpendicular to the first clamping block 303, and the axis of the second limit pin 408 is perpendicular to the second clamping block 403; both the first limit pin 310 and the second limit pin 408 include a head part 3101 and a guide rod part 3102, the diameter of the head part 3101 is greater than the diameter of the guide rod part 3102, and a first guide hole 1015 and a second guide hole 1016 are formed at the bottom of the beam body 101 along the length direction of the beam body 101. The size of the first guide hole 1015 is adapted to the diameter of the head part 3101, and the size of the second guide hole 1016 is adapted to the diameter of the guide rod part 3102. A first expansion part 1017 and a second expansion part 1018 are formed in the second guide hole 1016, and the diameters of both the first expansion part 1017 and the second expansion part 1018 are adapted to the diameter of the head part 3101.

[0069] In the present application, abutting parts are formed at the ends of the first connecting rod 305 and the second connecting rod, and the diameter of the abutting part is greater than the diameter of the rod body. After the bolt 501 of the segment 5 enters the positioning space and is lifted, the end of the bolt 501 abuts against the first clamping block 303 and the second clamping block 403, pulling the first clamping block 303 and the second clamping block 403 downward, so that the abutting part of the first connecting rod 305 is embedded into the first alignment hole 3011 of the first positioning seat 301, and the abutting part of the second connecting rod is embedded into the third alignment hole of the second positioning seat 401. The abutting part in the present application can be in a polygonal structure. Correspondingly, the shapes of the first alignment hole 3011 and the third alignment hole are adapted to the abutting part, so as to avoid the damage of the first connecting rod 308 and the second connecting rod 406 caused by the rotation of the first connecting rod 305 and the second connecting rod to a certain extent.

[0070] When the first clamping block 303 and the second clamping block 403 are pulled downward by the bolt 501 of the segment 5, it can drive the first limit pin 310 and the second limit pin 408 to move downward, so that the head part 3101 of the first limit pin 310 can enter the first expansion part 1017, and the head part 3101 of the second limit pin 408 can enter the second expansion part 1018, realizing the limit of the first clamping assembly 3 and the second clamping assembly 4 in the length direction of the beam body 101.

[0071] After the lifting and transportation is in place, the lifting equipment drives the clamping mechanism to move downward. When the first limit piece 306 and the second limit piece 404 contact the pipe segment 5, the abutment portion can be moved upward through the first connecting rod 305 and the second connecting rod. Since one end of the first connecting rod 308 is rotationally connected to the abutment portion of the first connecting rod 305, and the other end is rotationally connected to the second sleeve 405, and one end of the second connecting rod 406 is rotationally connected to the abutment portion of the second connecting rod, the first connecting rod 308 and the second connecting rod 406 can be used to make the first sleeve 307 and the second sleeve 405 move away from each other, thereby making the first clamping assembly 3 and the second clamping assembly 4 move away from each other, releasing the clamping of the bolt 501 of the pipe segment 5, and then using the lifting equipment to pull the clamping mechanism to move horizontally, so that the clamping mechanism is separated from the bolt 501 area of ​​the pipe segment 5, and the lifting and transportation of the pipe segment 5 is completed.

[0072] Preferably, if Figure 6 As shown, the first clamping assembly 3 in the present application also includes a third elastic member 309, and the second clamping assembly 4 also includes a fourth elastic member 407; the third elastic member 309 is sleeved on the first connecting rod 305 and is located between the first clamping block 303 and the first limiting member 306; the fourth elastic member 407 is sleeved on the second connecting rod and is located between the second clamping block 403 and the second limiting member 404.

[0073] When the first limiting member 306 and the second limiting member 404 are in contact with the pipe segment 5, the third elastic member 309 and the fourth elastic member 407 are compressed, thereby pushing the first clamping block 303 and the second clamping block 403 to move upward, thereby driving the first limiting pin 310 and the second limiting pin 408 to move upward, and causing the end portion 3101 of the first limiting pin 310 and the end portion 3101 of the second limiting pin 408 to move upward, disengaging from the first expansion portion 1017 and the second expansion portion 1018, thereby unlocking the positions of the first clamping block 303 and the second clamping block 403.

[0074] More preferably, if Figure 1 As shown, a first lifting ear portion 1021 is formed at one end of the first connecting arm 102 away from the beam body 101 in the present application, and a second lifting ear portion 1031 is formed at one end of the second connecting arm 103 away from the beam body 101 .

[0075] By utilizing the first lifting ear portion 1021 and the second lifting ear portion 1031, a quick and detachable connection between the clamping mechanism and the lifting device can be achieved, thereby facilitating lifting.

[0076] 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, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A shield tunnel segment hoisting device, characterized in that: It includes a positioning mechanism and a clamping mechanism; The positioning mechanism includes a crossbeam, and the crossbeam is formed with a guide portion extending along the length direction of the crossbeam; The clamping mechanism comprises a positioning rod, a first elastic member, a second elastic member, a first clamping assembly and a second clamping assembly, wherein the positioning rod is connected to the cross beam along the length direction of the cross beam, and the positioning rod is located in the guide portion; The first clamping assembly and the second clamping assembly are both slidably disposed on the positioning rod, the first clamping assembly is formed with a first notch, the second clamping assembly is formed with a second notch, the first elastic member and the second elastic member are both sleeved on the positioning rod, and the first elastic member is located between the first clamping assembly and one end of the guide portion, and the second elastic member is located between the second clamping assembly and the other end of the guide portion, so that the first notch and the second notch are connected to form a positioning space; The first clamping assembly includes a first positioning seat, a first movable block and a first clamping block, and the second clamping assembly includes a second positioning seat, a second movable block and a second clamping block; The first positioning seat and the second positioning seat are both U-shaped, and both ends of the first movable block are connected to the first positioning seat, and both ends of the second movable block are connected to the second positioning seat; The first movable block and the second movable block are both formed with matching holes, and the positioning rod passes through the matching holes, so that the first movable block and the second movable block can slide on the positioning rod in a direction of approaching or moving away from each other; The first clamping block is connected to the first positioning seat, and the first notch is formed on the first clamping block, the second clamping block is connected to the second positioning seat, and the second notch is formed on the second clamping block; The side edges of the first clamping block and the second clamping block are both guide bevel edges, and after the first clamping block and the second clamping block are attached, the guide bevel edges of the first clamping block and the second clamping block form a V shape.

2. The shield tunnel segment hoisting equipment according to claim 1, characterized in that: The crossbeam comprises a beam body, a first connecting arm and a second connecting arm; The guide portion is formed along the length direction of the beam body, and the first connecting arm and the second connecting arm are relatively connected to two ends of the beam body for connecting a lifting device; The two ends of the beam body are further formed with a first through hole and a second through hole connected to the guide portion. The clamping mechanism also includes a fastener. The two ends of the positioning rod pass through the first through hole and the second through hole respectively and are connected to the fastener.

3. The shield tunnel segment hoisting equipment according to claim 2 is characterized in that: The beam body is formed with a first limiting groove and a second limiting groove, the first limiting groove and the second limiting groove are formed on both sides of the guide portion, and the first limiting groove and the second limiting groove are waist-shaped grooves; The first movable block and the second movable block both include a main body, a first matching portion and a second matching portion, the matching hole is formed on the main body, the first matching portion and the second matching portion are relatively arranged at two ends of the main body, and the first matching portion is arranged corresponding to the first limiting groove, and the second matching portion is arranged corresponding to the second limiting groove.

4. The shield tunnel segment hoisting equipment according to claim 3 is characterized in that: The first movable block and the second movable block further include a plurality of rollers, the plurality of rollers are distributed along the circumference of the first matching portion and the second matching portion, and the rollers can roll relative to the first matching portion and the second matching portion.

5. The shield tunnel segment hoisting equipment according to claim 2, characterized in that: The first clamping assembly includes a first connecting rod, a first stopper, a first sleeve and a first connecting rod, and the second clamping assembly includes a second connecting rod, a second stopper, a second sleeve and a second connecting rod; A first alignment hole is formed on the first positioning seat, a second alignment hole is formed on the first clamping block at a position corresponding to the first alignment hole, a first limiting portion is formed at one end of the first connecting rod, and a diameter of the first limiting portion is larger than a diameter of the first alignment hole; The other end of the first connecting rod passes through the second alignment hole and is connected to the first limiting member, and the diameter of the first limiting member is larger than the diameter of the second alignment hole; One end of the first connecting rod is rotatably connected to the first limiting portion, and the other end is rotatably connected to the second sleeve, the second sleeve is connected to the second movable block, and the second sleeve can slide on the positioning rod; A third alignment hole is formed on the second positioning seat, a fourth alignment hole is formed on the second clamping block at a position corresponding to the third alignment hole, a second limiting portion is formed at one end of the second connecting rod, and a diameter of the second limiting portion is larger than a diameter of the third alignment hole; The other end of the second connecting rod passes through the fourth alignment hole and is connected to the second limiting member, and the diameter of the second limiting member is larger than the diameter of the fourth alignment hole; One end of the second connecting rod is rotatably connected to the second limiting portion, and the other end is rotatably connected to the first sleeve. The first sleeve is connected to the first movable block, and the first sleeve can slide on the positioning rod.

6. The shield tunnel segment hoisting equipment according to claim 5, characterized in that: The first clamping assembly further includes a third elastic member, and the second clamping assembly further includes a fourth elastic member; The third elastic member is sleeved on the first connecting rod and is located between the first clamping block and the first limiting member; The fourth elastic member is sleeved on the second connecting rod and is located between the second clamping block and the second limiting member.

7. The shield tunnel segment hoisting equipment according to claim 5, characterized in that: The first clamping assembly further includes a first limiting pin, and the second clamping assembly further includes a second limiting pin; The first limiting pin is connected to the first clamping block, the second limiting pin is connected to the second clamping block, and the axis of the first limiting pin is perpendicular to the first clamping block, and the axis of the second limiting pin is perpendicular to the second clamping block; The first limiting nail and the second limiting nail both include an end portion and a guide rod portion, the diameter of the end portion is larger than the diameter of the guide rod portion, a first guide hole and a second guide hole are formed at the bottom of the beam body and along the length direction of the beam body, the size of the first guide hole is adapted to the diameter of the end portion, the size of the second guide hole is adapted to the diameter of the guide rod portion, a first expansion portion and a second expansion portion are formed in the second guide hole, the diameters of the first expansion portion and the second expansion portion are adapted to the diameter of the end portion.

8. The shield tunnel segment hoisting equipment according to claim 2, characterized in that: A first lifting ear is formed at one end of the first connecting arm away from the beam body, and a second lifting ear is formed at one end of the second connecting arm away from the beam body.

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