Segmental reinforcing steel bar lifting appliance

Abstract

The utility model relates to the field of reinforcing steel bar hoisting, and discloses a segmental reinforcing steel bar hoisting tool. The segmental steel bar lifting appliance comprises a supporting frame, an upper lifting rope, a first movable beam, a second movable beam, a first lower lifting piece and a second lower lifting piece, the supporting frame is of a plane symmetrical structure, and an upper lifting piece is arranged at the top of the supporting frame and connected with a lifting machine through the upper lifting rope; the first movable beam is movably arranged on the supporting frame in the first direction. The second movable beam is movably arranged on the supporting frame in the second direction. The first lower hanging piece is movably arranged on the first movable beam in the second direction, the second lower hanging piece is movably arranged on the second movable beam in the first direction, and the section steel bar can be connected with the first lower hanging piece and the second lower hanging piece. The segmental reinforcing steel bar lifting appliance can adaptively adjust the position of the lifted segmental reinforcing steel bar according to the structure of the segmental reinforcing steel bar, so that the applicable range is expanded, the stability of the segmental reinforcing steel bar in the lifting process is ensured, and the safety and the construction efficiency of segmental reinforcing steel bar lifting are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel bar hoisting, and particularly relates to a segment steel bar sling. Background Art

[0002] Segment steel bars are prefabricated parts with a certain length and shape processed by cutting, bending, welding and other processes of steel bars, and are mostly used in the construction of cable towers of cable-stayed bridges and suspension bridges. During the construction of the cable tower, the prefabricated segment assembly method is mostly adopted at present, that is, the cable tower is divided into several segments, the steel bars of each segment are first bound into a shape, and then the steel bars of each segment are hoisted onto the tower and connected.

[0003] According to the construction and design requirements of the bridge, the cable tower is mostly designed into structures such as H-shaped, A-shaped, inverted Y-shaped or diamond-shaped, so that the steel bars of each segment are mostly asymmetric and variable cross-section structures. Therefore, when hoisting the steel bars of each segment, the hanging points of different segment steel bars are different, but the existing slings cannot be adjusted adaptively according to the shape of the segment steel bars to be hoisted; moreover, the phenomenon that the center of the segment steel bars cannot coincide vertically with the center of the hanging points is likely to occur, which not only affects the connection effect of the steel bars of each segment, but also affects the stability of the segment steel bars during hoisting, and there are relatively large safety risks.

[0004] Therefore, there is an urgent need for a segment steel bar sling to solve the above problems. Content of the Utility Model

[0005] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a segment steel bar sling, which can adaptively adjust the position of hoisting the segment steel bars according to the structure of the segment steel bars, not only expands the application range of the segment steel bar sling, but also ensures the stability of the segment steel bars during hoisting, and improves the safety and construction efficiency of segment steel bar hoisting.

[0006] To achieve the above object, the utility model adopts the following technical solutions:

[0007] A segment steel bar sling for hoisting segment steel bars is provided, including:

[0008] A support frame, which is a plane symmetric structure, and a plurality of upper hanging members are arranged at intervals along the circumferential direction of the top of the support frame;

[0009] A plurality of upper suspension ropes, which correspond to the plurality of upper hanging members one by one. One end of the upper suspension rope can be connected to a hoisting machine, and the other end is connected to the corresponding upper hanging member;

[0010] A plurality of first movable beams and a plurality of second movable beams, the plurality of first movable beams are arranged at intervals in a first direction, the first movable beams are movably arranged on a support frame in the first direction and extend in a second direction; the plurality of second movable beams are arranged at intervals in the second direction, the second movable beams are movably arranged on the support frame in the second direction and extend in the first direction;

[0011] A plurality of first lower suspension members and a plurality of second lower suspension members, the plurality of first lower suspension members are arranged at intervals in the second direction, the first lower suspension members are movably arranged on the first movable beams in the second direction, the plurality of second lower suspension members are arranged at intervals in the first direction, the second lower suspension members are movably arranged on the second movable beams in the first direction, and the segment steel bars can be connected to the first lower suspension members and the second lower suspension members, the first direction is the length direction of the segment steel bars, and the second direction is the width direction of the segment steel bars.

[0012] Optionally, both the first movable beam and the second movable beam are placed above the support frame, and a first lead screw and a second lead screw are arranged on the support frame. The first lead screw passes through at least one first movable beam in the first direction and is in sliding fit with the corresponding first movable beam. The second lead screw passes through at least one second movable beam in the second direction and is in sliding fit with the corresponding second movable beam.

[0013] Optionally, first limit members are arranged on both sides of the first movable beam in the first direction. The first limit members are threadedly connected to the first lead screw and can contact the first movable beam; second limit members are arranged on both sides of the second movable beam in the second direction. The second limit members are threadedly connected to the second lead screw and can contact the second movable beam.

[0014] Optionally, a first mounting member and a second mounting member are arranged on the support frame. The first lead screw is threadedly connected to the first mounting member, and the second lead screw is threadedly connected to the second mounting member.

[0015] Optionally, a third lead screw extending along the extending direction of the first movable beam is arranged on the first movable beam. The third lead screw passes through the first lower suspension member and is in sliding fit with the first lower suspension member; a fourth lead screw extending along the extending direction of the second movable beam is arranged on the second movable beam. The fourth lead screw passes through the second lower suspension member and is in sliding fit with the second lower suspension member.

[0016] Optionally, third limit members are arranged on both sides of the first lower suspension member in the second direction. The third limit members are threadedly connected to the third lead screw and can contact the first lower suspension member; fourth limit members are arranged on both sides of the second lower suspension member in the first direction. The fourth limit members are threadedly connected to the fourth lead screw and can contact the second lower suspension member.

[0017] Optionally, a third mounting member is arranged on the first movable beam. The third lead screw is threadedly connected to the third mounting member; a fourth mounting member is arranged on the second movable beam. The fourth lead screw is threadedly connected to the fourth mounting member.

[0018] Optionally, the support frame includes a plurality of frame cross beams and a plurality of frame longitudinal beams. The plurality of frame cross beams are arranged at intervals in the second direction, and the plurality of frame longitudinal beams are arranged at intervals in the first direction. The frame cross beams extend in the first direction, and the frame longitudinal beams extend in the second direction. The frame cross beams are fixedly connected to all the plurality of frame longitudinal beams, and the upper suspension member is arranged at the connection of the frame cross beam and the frame longitudinal beam.

[0019] Optionally, the support frame further includes a first connecting beam and a second connecting beam. The first connecting beam is arranged at the end of the frame cross beam and is fixedly connected to all the plurality of frame cross beams. Two second connecting beams are arranged at the ends of the frame longitudinal beams, and the second connecting beam is fixedly connected to all the plurality of frame longitudinal beams.

[0020] Optionally, a first sliding groove extending along its extending direction is provided on the first movable beam. The first lower suspension member includes a first sliding block, and the first sliding block is slidably engaged with the first sliding groove. A second sliding groove extending along its extending direction is provided on the second movable beam. The second lower suspension member includes a second sliding block, and the second sliding block is slidably engaged with the second sliding groove.

[0021] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0022] The present utility model provides a segment steel bar lifting tool. The support frame is a plane symmetric structure, and the upper suspension members are arranged at intervals along the circumference of the support frame. After the lifting machine is connected to the upper suspension members through the upper suspension ropes, the support frame can receive the lifting force of the lifting machine along its circumference, making the overall force of the support frame uniform, so as to facilitate the vertical coincidence of the center of gravity of the support frame with the center of the hook of the lifting machine and ensure the stability of the support frame during the lifting process. The first movable beam can move along the first direction on the support frame, the first lower suspension member on the first movable beam can move along the second direction, the second movable beam can move along the second direction on the support frame, and the second lower suspension member on the second movable beam can move along the first direction. Furthermore, the first lower suspension member and the second lower suspension member can both move along the first direction and the second direction relative to the support frame, enabling the segment steel bar lifting tool to adaptively adjust the position of lifting the segment steel bar according to the structure of the segment steel bar, making the center of gravity of the segment steel bar vertically coincide with the center of gravity of the support frame, ensuring the stability of the segment steel bar during the lifting process, and improving the safety of lifting the segment steel bar, the connection rate of each segment of steel bar, and the construction efficiency. By adjusting the position where the segment steel bar lifting tool is connected to the segment steel bar, the segment steel bar lifting tool can be applicable to lifting segment steel bars with different structures, facilitating the use at the construction site and expanding the application range of the segment steel bar lifting tool. Description of the Drawings

[0023] Figure 1 It is a plan view of the segment steel bar lifting tool provided by the present utility model;

[0024] Figure 2Plan view of the support frame, the first movable beam and the second movable beam of the segment steel bar sling provided by the present utility model;

[0025] Figure 3 Plan layout diagram of the first lower sling and the second lower sling of the segment steel bar sling provided by the present utility model;

[0026] Figure 4 Schematic plan view of the support frame of the segment steel bar sling provided by the present utility model;

[0027] Figure 5 It is Figure 1 The A-A sectional view in;

[0028] Figure 6 It is Figure 1 The B-B sectional view in (hiding the first movable beam);

[0029] Figure 7 It is Figure 1 The enlarged view at C in;

[0030] Figure 8 It is Figure 5 The enlarged view at D in;

[0031] Figure 9 It is Figure 1 The enlarged view at E in;

[0032] Figure 10 It is Figure 1 The enlarged view at F in;

[0033] Figure 11 Elevation view of the first mounting member of the segment steel bar sling provided by the present utility model;

[0034] Figure 12 Elevation view of the third mounting member of the segment steel bar sling provided by the present utility model;

[0035] Figure 13 It is Figure 1 The enlarged view at G in.

[0036] Wherein:

[0037] 100, segment steel bar;

[0038] 1, support frame; 11, frame cross beam; 111, first connecting portion; 112, first cantilever portion; 12, frame longitudinal beam; 121, second connecting portion; 122, second cantilever portion; 13, stiffening plate; 14, first connecting beam; 15, second connecting beam;

[0039] 2, upper suspension rope;

[0040] 31, first movable beam; 32, second movable beam;

[0041] 41. First lower suspension member; 411. First slider; 42. Second lower suspension member; 421. Sliding part; 422. Second connecting ear plate;

[0042] 5. Upper suspension member; 51. First connecting ear plate; 511. Ear hole; 52. Support plate;

[0043] 61. First lead screw; 62. Second lead screw; 63. Third lead screw; 64. Fourth lead screw;

[0044] 71. First limiting member; 72. Second limiting member; 73. Third limiting member; 74. Fourth limiting member;

[0045] 81. First mounting member; 811. First threaded hole; 82. Second mounting member; 83. First locking nut; 84. Third mounting member; 841. Third threaded hole; 85. Fourth mounting member; 86. Second locking nut;

[0046] 9. Lower suspension rope. Detailed implementation manners

[0047] It should be understood that in the description of the present utility model, the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model 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 thus should not be construed as a limitation to the present utility model.

[0048] It should be noted that in the description of the present utility model, unless otherwise clearly defined and limited, the terms "set", "connected", "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific situations.

[0049] The technical solution of the present utility model will be further described below with reference to the drawings and through specific implementation manners.

[0050] As Figures 1 to 13As shown in the figure, this embodiment provides a segment steel bar sling for hoisting the segment steel bar 100. It can adaptively adjust the position of the hoisted segment steel bar 100 according to the structure of the segment steel bar 100, which not only expands the applicable range of the segment steel bar sling, but also ensures the stability of the segment steel bar 100 during hoisting, and improves the safety and construction efficiency of hoisting the segment steel bar 100.

[0051] Referring to Figure 1 and Figure 3 , the segment steel bar sling includes a support frame 1, a plurality of upper suspension ropes 2, a plurality of first movable beams 31, a plurality of second movable beams 32, a plurality of first lower suspension members 41 and a plurality of second lower suspension members 42. The support frame 1 is a plane symmetric structure, and a plurality of upper suspension members 5 are arranged at intervals along the circumferential direction of the top of the support frame 1; a plurality of upper suspension ropes 2 correspond to the plurality of upper suspension members 5 one by one. One end of the upper suspension rope 2 can be connected to the hoisting machine, and the other end is connected to the corresponding upper suspension member 5; a plurality of first movable beams 31 are arranged at intervals along the first direction. The first movable beam 31 is movably arranged on the support frame 1 along the first direction and extends along the second direction; a plurality of second movable beams 32 are arranged at intervals along the second direction. The second movable beam 32 is movably arranged on the support frame 1 along the second direction and extends along the first direction; a plurality of first lower suspension members 41 are arranged at intervals along the second direction. The first lower suspension member 41 is movably arranged on the first movable beam 31 along the second direction. A plurality of second lower suspension members 42 are arranged at intervals along the first direction. The second lower suspension member 42 is movably arranged on the second movable beam 32 along the first direction. The segment steel bar 100 can be connected to the first lower suspension member 41 and the second lower suspension member 42. The first direction is the length direction of the segment steel bar 100 ( Figure 1 the X direction in Figure 1 ), and the second direction is the width direction of the segment steel bar 100 (

[0052] The segment steel bar sling provided in this embodiment has a support frame 1 with a plane-symmetrical structure. The upper lifting members 5 are arranged at intervals along the circumference of the support frame 1. After the hoisting machinery is connected to the upper lifting members 5 through the upper lifting ropes 2, the support frame 1 can receive the lifting force of the hoisting machinery along its circumference, making the overall force on the support frame 1 uniform, so as to facilitate the vertical coincidence of the center of gravity of the support frame 1 with the center of the hook of the hoisting machinery and ensure the stability of the support frame 1 during the hoisting process. The first movable beam 31 can move along a first direction on the support frame 1, the first lower lifting member 41 on the first movable beam 31 can move along a second direction, the second movable beam 32 can move along the second direction on the support frame 1, and the second lower lifting member 42 on the second movable beam 32 can move along the first direction. Furthermore, both the first lower lifting member 41 and the second lower lifting member 42 can move both along the first direction and along the second direction relative to the support frame 1, enabling the segment steel bar sling to adaptively adjust the position of hoisting the segment steel bar 100 according to the structure of the segment steel bar 100, making the center of gravity of the segment steel bar 100 vertically coincide with the center of gravity of the support frame 1, ensuring the stability of the segment steel bar 100 during the hoisting process, and improving the safety of hoisting the segment steel bar 100, the connection speed of each segment steel bar 100, and the construction efficiency. By adjusting the position where the segment steel bar sling is connected to the segment steel bar 100, it can be applicable to hoist segment steel bars 100 with different structures, facilitating on-site construction use and expanding the applicable range of the segment steel bar sling.

[0053] In this embodiment, referring to Figure 7 and Figure 8 , the upper lifting member 5 includes a first connecting ear plate 51, and an ear hole 511 is provided on the first connecting ear plate 51. After the upper lifting rope 2 passes through the ear hole 511, it is tied to prevent the upper lifting rope 2 from detaching from the first connecting ear plate 51. Specifically, support plates 52 are provided on both sides of the first connecting ear plate 51 along its thickness direction, and a plurality of support plates 52 are arranged at intervals along the extending direction of the first connecting ear plate 51 on each side. The support plates 52 are perpendicular to the first connecting ear plate 51. The support frame 1, the first connecting ear plate 51, and the support plates 52 are all made of steel. The support plates 52 are welded to the first connecting ear plate 51, and both the support plates 52 and the first connecting ear plate 51 are welded to the top surface of the support frame 1. The support plates 52 can not only increase the stiffness of the first connecting ear plate 51 outside the plane and prevent the first connecting ear plate 51 from being damaged, but also increase the connection area between the first connecting ear plate 51 and the support frame 1, enhancing the firmness of the installation of the first connecting ear plate 51 on the support frame 1.

[0054] Exemplarily, the upper lifting rope 2 is selected as a steel wire rope with high tensile strength and can withstand a large tensile force; the hoisting machinery includes a tower crane, and a hook is provided on the tower crane. One end of each of the plurality of upper lifting ropes 2 away from the upper lifting member 5 is connected to the hook.

[0055] Optionally, referring to Figure 1 and Figure 4, the support frame 1 includes a plurality of frame cross beams 11 and a plurality of frame longitudinal beams 12. The plurality of frame cross beams 11 are arranged at intervals in the second direction, and the plurality of frame longitudinal beams 12 are arranged at intervals in the first direction. The frame cross beams 11 extend in the first direction, and the frame longitudinal beams 12 extend in the second direction. The frame cross beams 11 are fixedly connected to all the frame longitudinal beams 12, and the upper suspension member 5 is arranged at the connection of the frame cross beam 11 and the frame longitudinal beam 12. The plurality of frame cross beams 11 and the plurality of frame longitudinal beams 12 can form a planar frame structure and can be symmetrically arranged with respect to both the first direction and the second direction, ensuring the stability of the structure of the support frame 1.

[0056] In this embodiment, referring to Figure 1 and Figure 4 , there are two frame cross beams 11 and two frame longitudinal beams 12. The frame cross beam 11 includes a first connection portion 111 and two first cantilever portions 112, and the frame longitudinal beam 12 includes a second connection portion 121 and two second cantilever portions 122. The two first cantilever portions 112 are respectively arranged at both ends of the first connection portion 111, and the two second cantilever portions 122 are respectively arranged at both ends of the second connection portion 121. The first movable beam 31 is arranged on the first cantilever portion 112, and the second movable beam 32 is arranged on the second cantilever portion 122. The first connection portions 111 of the two frame cross beams 11 and the second connection portions 121 of the two frame longitudinal beams 12 enclose a rectangle. There are four upper suspension members 5 and four upper suspension ropes 2. The four upper suspension members 5 are respectively arranged at the four corners of the rectangle, so that the center of gravity of the support frame 1 can be vertically coincident with the hook of the hoisting machinery.

[0057] Exemplarily, both the frame cross beam 11 and the frame longitudinal beam 12 are made of I-beams, and the connection between the frame cross beam 11 and the frame longitudinal beam 12 can be connected by bolts or welding. A plurality of stiffening plates 13 are arranged at intervals along the length direction of the I-beam. The stiffening plates 13 are welded to the flanges and webs of the I-beam to increase the stiffness of the I-beam and enhance the supporting ability of the support frame 1.

[0058] Optionally, referring to Figure 1 and Figure 4 , the support frame 1 further includes a first tie beam 14 and a second tie beam 15. The first tie beam 14 is arranged on the frame cross beam 11, and the first tie beam 14 is fixedly connected to all the frame cross beams 11. The second tie beam 15 is arranged on the frame longitudinal beam 12, and the second tie beam 15 is fixedly connected to all the frame longitudinal beams 12. The first tie beam 14 can connect the plurality of frame cross beams 11 into a whole, and the second tie beam 15 can connect the plurality of frame longitudinal beams 12 into a whole, enhancing the integrity of the support frame 1.

[0059] In this embodiment, referring to Figure 4, there are two first connecting beams 14 and two second connecting beams 15. The two first connecting beams 14 are respectively arranged at both ends of the frame cross beam 11, and the two second connecting beams 15 are respectively arranged at both ends of the frame longitudinal beam 12; there are also two frame cross beams 11 and two frame longitudinal beams 12. Both ends of the first connecting beam 14 are fixedly connected to the cantilever ends of the two first cantilever parts 112 respectively, and both ends of the second connecting beam 15 are fixedly connected to the cantilever ends of the two second cantilever parts 122 respectively.

[0060] Exemplarily, both the first connecting beam 14 and the second connecting beam 15 are annular structures formed by welding two I-beams. The first connecting beam 14 and the frame cross beam 11, and the second connecting beam 15 and the frame longitudinal beam 12 can be connected by bolts or welding.

[0061] Optionally, refer to Figure 1 and Figure 6 , the first movable beam 31 and the second movable beam 32 are both placed above the support frame 1. The support frame 1 is provided with a first lead screw 61 and a second lead screw 62. The first lead screw 61 passes through at least one first movable beam 31 along a first direction and is slidably matched with the corresponding first movable beam 31. The second lead screw 62 passes through at least one second movable beam 32 along a second direction and is slidably matched with the corresponding second movable beam 32. The first movable beam 31 is placed above the support frame 1 to prevent the support frame 1 from affecting the movement of the first movable beam 31; the sliding fit between the first lead screw 61 and the first movable beam 31 enables the first lead screw 61 not to affect the movement of the first movable beam 31, and the first lead screw 61 can also limit the movement direction of the first movable beam 31, realizing the adjustment of the position of the first movable beam 31 on the support frame 1 along the first direction. The first lead screw 61 passes through at least one first movable beam 31. When the first lead screw 61 passes through multiple first movable beams 31, the first lead screw 61 can connect the multiple first movable beams 31 into a whole, increasing the integrity between the first movable beams 31 and further improving the overall stability of the segmental steel bar lifting tool during the hoisting process. The function of the second lead screw 62 is the same as that of the first lead screw 61, and will not be elaborated here.

[0062] Specifically, the first movable beam 31 is provided with a first through hole, and the first lead screw 61 passes through the first through hole and is in clearance fit with the hole wall of the first through hole to achieve relative sliding; the second movable beam 32 is provided with a second through hole, and the second lead screw 62 passes through the second through hole and is in clearance fit with the hole wall of the second through hole to achieve relative sliding.

[0063] In this embodiment, refer to Figure 1 and Figure 4, a plurality of first lead screws 61 are arranged between two adjacent first cantilever portions 112 to enhance the limiting effect on the first movable beam 31 along the extending direction of the first movable beam 31; one end of the first lead screw 61 is connected to the second connecting portion 121, and the other end is connected to the first connecting beam 14, ensuring the stability of the installation of the first lead screw 61; two first movable beams 31 are arranged between the second connecting portion 121 and the first connecting beam 14, and the first lead screw 61 passes through the two first movable beams 31. A plurality of second lead screws 62 are arranged between two adjacent second cantilever portions 122, one end of the second lead screw 62 is connected to the first connecting portion 111, and the other end is connected to the second connecting beam 15. Two second movable beams 32 are arranged between the first connecting portion 111 and the second connecting beam 15, and the second lead screw 62 passes through the two second movable beams 32.

[0064] Further, the top surface of the first connecting beam 14 is flush with the top surface of the frame cross beam 11 to ensure that the heights of both ends of the first lead screw 61 can be the same. Refer to Figure 6 , the top surface of the second connecting beam 15 is flush with the top surface of the frame longitudinal beam 12 to ensure that the heights of both ends of the second lead screw 62 can be the same.

[0065] Exemplarily, refer to Figure 1 and Figure 4 , two first lead screws 61 are arranged between two adjacent first cantilever portions 112, and two second lead screws 62 are arranged between two adjacent second cantilever portions 122.

[0066] Optionally, refer to Figure 1 、 Figure 3 and Figure 9 , first limit members 71 are arranged on both sides of the first movable beam 31 along the first direction. The first limit members 71 are threadedly connected to the first lead screw 61 and can contact the first movable beam 31; second limit members 72 are arranged on both sides of the second movable beam 32 along the second direction. The second limit members 72 are threadedly connected to the second lead screw 62 and can contact the second movable beam 32. After the first movable beam 31 moves to the required position according to the structure of the segmental steel bar 100, the first limit member 71 is screwed. The first limit member 71 moves on the first lead screw 61 to contact the side wall of the first movable beam 31. The first limit member 71 can effectively limit the sliding of the first movable beam 31 on the first lead screw 61, ensuring the overall stability of the segmental steel bar lifting appliance during the lifting process. The function of the second limit member 72 is the same as that of the first limit member 71, which will not be elaborated here.

[0067] Exemplarily, both the first limiting member 71 and the second limiting member 72 are nuts. By screwing the nuts, the nuts can move along the first lead screw 61 or the second lead screw 62, and the nuts move away from the first movable beam 31 or the second movable beam 32. At this time, the first movable beam 31 can move on the first lead screw 61, and the second movable beam 32 can move on the second lead screw 62, realizing the adjustment of the positions of the first movable beam 31 and the second movable beam 32 on the support frame 1.

[0068] Optionally, referring to Figure 1 , a first mounting member 81 and a second mounting member 82 are provided on the support frame 1. The first lead screw 61 is threadedly connected to the first mounting member 81, and the second lead screw 62 is threadedly connected to the second mounting member 82 to fix the first lead screw 61 and the second lead screw 62 to the support frame 1.

[0069] Specifically, referring to Figure 1 , Figure 10 and Figure 11 , a first threaded hole 811 is provided on the first mounting member 81. The first lead screw 61 passes through the first threaded hole 811 and is threadedly connected to the first threaded hole 811. A second threaded hole is provided on the second mounting member 82. The second lead screw 62 passes through the second threaded hole and is threadedly connected to the second threaded hole. The first mounting member 81 is provided on both the second connecting portion 121 of the frame longitudinal beam 12 and the first connecting beam 14. The cross-sectional shape of the first mounting member 81 is a rectangular ring to reduce the weight of the first mounting member 81 and the load on the support frame 1; the second mounting member 82 is provided on both the first connecting portion 111 of the frame cross beam 11 and the second connecting beam 15. The structure of the second mounting member 82 is the same as that of the first mounting member 81, and will not be described in detail here.

[0070] In this embodiment, both the first mounting member 81 and the second mounting member 82 are composed of two channel steels welded together, and both the first mounting member 81 and the second mounting member 82 are fixed to the top surface of the support frame 1 by welding; in other embodiments, the first mounting member 81 and the second mounting member 82 are made of square steel pipes.

[0071] Further, referring to Figure 1 and Figure 10, on one side of the first mounting member 81 facing away from the first movable beam 31 and on one side of the second mounting member 82 facing away from the second movable beam 32, first locking nuts 83 are provided. The first locking nuts 83 are threadedly connected to the first lead screw 61 or the second lead screw 62. A frictional force can be generated between the first locking nut 83 and the first lead screw 61 or the second lead screw 62. This frictional force can be converted into a fastening torque between the first mounting member 81 and the first lead screw 61 and between the first locking nut 83 and the first lead screw 61 or into a fastening torque between the second mounting member 82 and the second lead screw 62 and between the first locking nut 83 and the second lead screw 62. Then the first lead screw 61 or the second lead screw 62 cannot rotate, thereby preventing the first lead screw 61 from detaching from the first mounting member 81 and the second lead screw 62 from detaching from the second mounting member 82.

[0072] Optionally, referring to Figure 1 and Figure 5 , a third lead screw 63 extending along its extending direction is provided on the first movable beam 31. The third lead screw 63 passes through the first lower suspension member 41 and is in sliding fit with the first lower suspension member 41; a fourth lead screw 64 extending along its extending direction is provided on the second movable beam 32. The fourth lead screw 64 passes through the second lower suspension member 42 and is in sliding fit with the second lower suspension member 42. The sliding fit between the third lead screw 63 and the first lower suspension member 41 enables the third lead screw 63 not to affect the movement of the first lower suspension member 41, and the third lead screw 63 can also limit the movement direction of the first lower suspension member 41, realizing the adjustment of the position of the first lower suspension member 41 on the first movable beam 31 along the second direction. The function of the fourth lead screw 64 is the same as that of the third lead screw 63, which will not be elaborated here.

[0073] Specifically, a third through hole is provided on the first lower suspension member 41. The third lead screw 63 passes through the third through hole and is in clearance fit with the hole wall of the third through hole to achieve relative sliding; a fourth through hole is provided on the second lower suspension member 42. The fourth lead screw 64 passes through the fourth through hole and is in clearance fit with the hole wall of the fourth through hole to achieve relative sliding.

[0074] In this embodiment, the fourth lead screw 64 is located above the second movable beam 32 and is not affected by the lower support frame 1 below. The second lower suspension member 42 includes a sliding portion 421 and a second connecting ear plate 422. The second connecting ear plate 422 is located below the second movable beam 32 and is connected to the segment steel bar 100 through a lower suspension rope 9. The sliding portion 421 is located above the second movable beam 32. The fourth lead screw 64 passes through the sliding portion 421 and is in sliding fit with the sliding portion 421. The arrangement of the third lead screw 63 is the same as that of the fourth lead screw 64, and the structure and arrangement of the first lower suspension member 41 are the same as those of the second lower suspension member 42, which will not be elaborated here. Exemplarily, the lower suspension rope 9 is a steel wire rope.

[0075] Optionally, referring to Figure 1 and Figure 3, on both sides of the first lower suspension member 41 along the second direction, third limiting members 73 are provided. The third limiting members 73 are threadedly connected to the third lead screws 63 and can contact the first lower suspension member 41. On both sides of the second lower suspension member 42 along the first direction, fourth limiting members 74 are provided. The fourth limiting members 74 are threadedly connected to the fourth lead screws 64 and can contact the second lower suspension member 42. After the first lower suspension member 41 moves to the required position according to the structure of the segmental steel bars 100, the third limiting member 73 is screwed. The third limiting member 73 moves on the third lead screw 63 until it contacts the side wall of the first lower suspension member 41. The third limiting member 73 can effectively limit the movement of the first lower suspension member 41 on the third lead screw 63, ensuring the overall stability of the segmental steel bar hoist during the hoisting process. The function of the fourth limiting member 74 is the same as that of the third limiting member 73, which will not be elaborated here.

[0076] Exemplarily, both the third limiting member 73 and the fourth limiting member 74 are nuts. By screwing the nuts, the nuts can move along the third lead screw 63 or the fourth lead screw 64, and the nuts move away from the first lower suspension member 41 or the second lower suspension member 42. At this time, the first lower suspension member 41 can move on the third lead screw 63, and the second lower suspension member 42 can move on the fourth lead screw 64, realizing the adjustment of the positions of the first lower suspension member 41 and the second lower suspension member 42 on the support frame 1.

[0077] Optionally, referring to Figure 1 , Figure 12 and Figure 13 , a third mounting member 84 is provided on the first movable beam 31, and the third lead screw 63 is threadedly connected to the third mounting member 84; a fourth mounting member 85 is provided on the second movable beam 32, and the fourth lead screw 64 is threadedly connected to the fourth mounting member 85 to fix the third lead screw 63 to the first movable beam 31 and the fourth lead screw 64 to the second movable beam 32.

[0078] Specifically, referring to Figure 1 , Figure 12 and Figure 13 , a third threaded hole 841 is provided on the third mounting member 84. The third lead screw 63 passes through the third threaded hole 841 and is threadedly connected to the third threaded hole 841. A fourth threaded hole is provided on the fourth mounting member 85. The fourth lead screw 64 passes through the fourth threaded hole and is threadedly connected to the fourth threaded hole. Third mounting members 84 are provided at both ends of the first movable beam 31. The cross-sectional shape of the third mounting member 84 is a rectangular ring to reduce the weight of the third mounting member 84 and the load on the first movable beam 31 and the support frame 1. Fourth mounting members 85 are provided at both ends of the second movable beam 32. The structure of the fourth mounting member 85 is the same as that of the third mounting member 84, which will not be elaborated here.

[0079] In this embodiment, both the third mounting member 84 and the fourth mounting member 85 are composed of two channel steels welded together and are welded to the top surface of the first movable beam 31 or the top surface of the second movable beam 32. In other embodiments, the third mounting member 84 and the fourth mounting member 85 are made of square steel pipes.

[0080] Further, referring to Figure 1 、 Figure 5 and Figure 13 , on one side of the third mounting member 84 facing away from the first lower suspension member 41 and on one side of the fourth mounting member 85 facing away from the second lower suspension member 42, second locking nuts 86 are provided. The second locking nuts 86 are threadedly connected to the third lead screw 63 or the fourth lead screw 64 to prevent the third lead screw 63 from detaching from the third mounting member 84 and the fourth lead screw 64 from detaching from the fourth mounting member 85.

[0081] Optionally, referring to Figure 1 and Figure 8 , the first movable beam 31 is provided with a first sliding groove extending along its extending direction. The first lower suspension member 41 includes a first sliding block 411, and the first sliding block 411 is slidably engaged with the first sliding groove. The second movable beam 32 is provided with a second sliding groove extending along its extending direction. The second lower suspension member 42 includes a second sliding block, and the second sliding block is slidably engaged with the second sliding groove, so that the first lower suspension member 41 can move on the first movable beam 31 and the second lower suspension member 42 can move on the second movable beam 32.

[0082] The process of hoisting the segmental steel bar 100 using the segmental steel bar hoist provided in this embodiment is as follows:

[0083] S1. Determine the lengths of the respective upper suspension ropes 2 according to the structure of the segmental steel bar 100 to be hoisted, and connect the upper suspension ropes 2 to the upper suspension members 5 and the hook of the hoisting machine, so that the center of the hook can be vertically coincident with the center of gravity of the segmental steel bar 100.

[0084] S2. Determine the quantities of the first lower suspension member 41 and the second lower suspension member 42 according to the structure of the segmental steel bar 100 to be hoisted, and install the first lower suspension member 41 on the first movable beam 31 and the second lower suspension member 42 on the second movable beam 32.

[0085] S3. Determine the position where the segmental steel bar 100 is to be hoisted according to the structure of the segmental steel bar 100 to be hoisted, and move the first lower suspension member 41, the second lower suspension member 42, the first movable beam 31 and the second movable beam 32, so that the first lower suspension member 41 and the second lower suspension member 42 move to be vertically coincident with the position where the segmental steel bar 100 is to be hoisted.

[0086] S4. Connect the first lower suspension member 41 and the second lower suspension member 42 to the segmental steel bar 100 using the lower suspension ropes 9, and adjust the lengths of the lower suspension ropes 9, and readjust the relative position between the hook center and the center of gravity of the segmental steel bar 100.

[0087] S5. Use a hoisting machine to lift the segment steel bars 100 by 5 cm to 10 cm, and confirm whether the segment steel bars 100 are inclined, whether there is looseness between the various parts of the segment steel bar sling, and whether there is looseness between the segment steel bar sling and the segment steel bars 100. If so, make adjustments; if not, continue to lift the segment steel bars 100.

[0088] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that any changes or substitutions that can be easily thought of by any person skilled in the art within the technical scope disclosed by the present invention fall within the protection scope and the disclosure scope of the present invention.

Claims

1. A segment steel bar sling for hoisting segment steel bars (100), characterized in that, Comprising: A support frame (1), which is a plane-symmetrical structure, and a plurality of hanging members (5) arranged at intervals along its circumference are provided at the top of the support frame (1); A plurality of hanging ropes (2), and the plurality of hanging ropes (2) correspond to the plurality of hanging members (5) one by one. One end of the hanging rope (2) can be connected to a hoisting machine, and the other end is connected to the corresponding hanging member (5); A plurality of first movable beams (31) and a plurality of second movable beams (32), the plurality of first movable beams (31) are arranged at intervals in a first direction, the first movable beams (31) are movably arranged on the support frame (1) in the first direction and extend in a second direction; the plurality of second movable beams (32) are arranged at intervals in the second direction, the second movable beams (32) are movably arranged on the support frame (1) in the second direction and extend in the first direction; A plurality of first lower hanging members (41) and a plurality of second lower hanging members (42), the plurality of first lower hanging members (41) are arranged at intervals in the second direction, the first lower hanging members (41) are movably arranged on the first movable beam (31) in the second direction, the plurality of second lower hanging members (42) are arranged at intervals in the first direction, the second lower hanging members (42) are movably arranged on the second movable beam (32) in the first direction, and the segment steel bars (100) can be connected to the first lower hanging members (41) and the second lower hanging members (42). The first direction is the length direction of the segment steel bars (100), and the second direction is the width direction of the segment steel bars (100).

2. The segment steel bar sling according to claim 1, characterized in that, The first movable beam (31) and the second movable beam (32) are both placed above the support frame (1). A first lead screw (61) and a second lead screw (62) are provided on the support frame (1). The first lead screw (61) passes through at least one of the first movable beams (31) in the first direction and is in sliding fit with the corresponding first movable beam (31). The second lead screw (62) passes through at least one of the second movable beams (32) in the second direction and is in sliding fit with the corresponding second movable beam (32).

3. The segment steel bar sling according to claim 2, characterized in that, First limit members (71) are provided on both sides of the first movable beam (31) in the first direction. The first limit members (71) are threadedly connected to the first lead screw (61) and can contact the first movable beam (31); second limit members (72) are provided on both sides of the second movable beam (32) in the second direction. The second limit members (72) are threadedly connected to the second lead screw (62) and can contact the second movable beam (32).

4. The segment steel bar sling according to claim 2, wherein, A first mounting member (81) and a second mounting member (82) are provided on the support frame (1). The first lead screw (61) is threadedly connected to the first mounting member (81), and the second lead screw (62) is threadedly connected to the second mounting member (82).

5. The segment steel bar sling according to claim 1, characterized in that A third lead screw (63) extending along the extending direction thereof is provided on the first movable beam (31), and the third lead screw (63) passes through the first lower suspension member (41) and is in sliding fit with the first lower suspension member (41); a fourth lead screw (64) extending along the extending direction thereof is provided on the second movable beam (32), and the fourth lead screw (64) passes through the second lower suspension member (42) and is in sliding fit with the second lower suspension member (42).

6. The segment steel bar sling according to claim 5, wherein, Third limit members (73) are provided on both sides of the first lower suspension member (41) along the second direction, the third limit members (73) are threadedly connected to the third lead screw (63) and can contact the first lower suspension member (41); fourth limit members (74) are provided on both sides of the second lower suspension member (42) along the first direction, the fourth limit members (74) are threadedly connected to the fourth lead screw (64) and can contact the second lower suspension member (42).

7. The segment steel bar sling according to claim 5, characterized in that, A third mounting member (84) is provided on the first movable beam (31), and the third lead screw (63) is threadedly connected to the third mounting member (84); a fourth mounting member (85) is provided on the second movable beam (32), and the fourth lead screw (64) is threadedly connected to the fourth mounting member (85).

8. The segment steel bar sling according to any one of claims 1-7, characterized in that, The support frame (1) includes a plurality of frame cross beams (11) and a plurality of frame longitudinal beams (12), the plurality of frame cross beams (11) are arranged at intervals along the second direction, the plurality of frame longitudinal beams (12) are arranged at intervals along the first direction, the frame cross beams (11) extend along the first direction, the frame longitudinal beams (12) extend along the second direction, the frame cross beams (11) are fixedly connected to all the plurality of frame longitudinal beams (12), and the upper suspension member (5) is arranged at the connection of the frame cross beam (11) and the frame longitudinal beam (12).

9. The segment steel bar sling according to claim 8, characterized in that, The support frame (1) further includes a first connecting beam (14) and a second connecting beam (15), the first connecting beam (14) is arranged where the frame cross beam (11) is located, the first connecting beam (14) is fixedly connected to all the plurality of frame cross beams (11), the second connecting beam (15) is arranged at the end of the frame longitudinal beam (12), and the second connecting beam (15) is fixedly connected to all the plurality of frame longitudinal beams (12).

10. The segment steel bar sling according to any one of claims 1-7, characterized in that, A first chute extending along the extending direction thereof is provided on the first movable beam (31), the first lower suspension member (41) includes a first slider (411), and the first slider (411) is in sliding fit with the first chute; a second chute extending along the extending direction thereof is provided on the second movable beam (32), the second lower suspension member (42) includes a second slider, and the second slider is in sliding fit with the second chute.

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