Box girder hoisting equipment capable of conveniently adjusting section postures and fastening clamp device

Abstract

The invention discloses box girder hoisting equipment and a fastening hoop device capable of conveniently adjusting segment postures, and relates to the technical field of box girder hoisting, the box girder hoisting equipment comprises two fastening assemblies, the two fastening assemblies are fixedly connected with the two sides of a crane main body correspondingly and used for limiting the crane main body and a bridge segment, the crane main body comprises a hoisting frame, and the hoisting frame is fixedly connected with the two fastening assemblies. A crane is fixedly mounted at one end of the hoisting frame and is connected with the docking mechanism through a cable; the other end of the lifting frame is provided with an adjusting assembly used for horizontally adjusting the posture of the mooring rope. According to the device, the adjusting assembly is arranged, horizontal pushing and shifting of the cables are achieved through horizontal sliding operation of the transverse moving direction adjusting frames, the multiple transverse moving direction adjusting frames are matched with synchronous pushing operation to drive all sets of cables to shift synchronously, and overall horizontal displacement operation of the box girder sections is automatically achieved; troubles caused by manual horizontal pushing operation are avoided, and then the working efficiency of box girder hoisting construction is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of box girder hoisting, and specifically to a box girder hoisting device and a fastening clamp device that are convenient for adjusting the attitude of segments. Background Technique

[0002] The steel box girder hoisting device is a professional device used to hoist the manufactured steel box girder as a whole above the bridge pier. The steel box girder hoisting device usually consists of key components such as a lifting tool, a crane, and a control system.

[0003] The working principle of the steel box girder hoisting device is relatively simple but requires precision. Before hoisting, the operator needs to ensure that the connection between the lifting tool and the steel box girder is firm and reliable. Then, the steel box girder is slowly lifted to a predetermined height by the crane, and then translated above the bridge pier to ensure that the steel box girder is smoothly placed on the bridge pier.

[0004] Due to the limitations of bridge design or architectural structure, the butt joints between some box girders are inclined, that is, the steel box girder needs to be adjusted in a certain attitude during hoisting to meet the installation requirements and achieve accurate butt joint installation. However, the existing adjustment methods generally use the adjustment of the lifting distance of the lifting rope to adjust the inclined state of the box girder segment, which is difficult to achieve the adjustment of the box girder segment in the horizontal direction; at the same time, construction workers are also required to be configured on the bridge section for auxiliary traction and displacement, and finally the position of the box girder is fixed. Due to the large self-weight of the box girder segment, this adjustment method is time-consuming and laborious, has a certain degree of danger, and the overall hoisting construction efficiency is not high. Summary of the Invention

[0005] The purpose of the present invention is to provide a box girder hoisting device and a fastening clamp device that are convenient for adjusting the attitude of segments, so as to solve the problem in the above-mentioned background technique that the prior art is difficult to adjust the box girder segment in the horizontal direction.

[0006] To achieve the above purpose, the present invention provides the following technical solutions: A fastening clamp device for a box girder hoisting device, including two symmetrically arranged fastening components, the two fastening components are respectively fixedly connected to both sides of the crane main body, and are used for limiting between the crane main body and the bridge section; the two fastening components include a frame, a transverse movement oil cylinder is fixedly installed on one side of the frame, the output end of the transverse movement oil cylinder is fixedly connected to a side frame, a fastening oil cylinder is fixedly installed on the inner wall of the side frame, a fastening frame is arranged at the output end of the fastening oil cylinder, and one side of the fastening frame is set as an inclined surface.

[0007] As a further scheme of the present invention: a movable cavity is opened in the middle of the fastening frame, several supporting rollers are rotatably installed on the top inner wall of the movable cavity, a lifting plate is arranged inside the movable cavity, and the center of the top of the lifting plate is fixedly connected to the output end of the fastening oil cylinder.

[0008] As a further solution of the present invention: a displacement motor is fixedly installed in the middle of the side frame, an output end of the displacement motor is fixedly connected with a displacement gear, a tooth groove is formed in a bottom of an inner wall of the movable cavity, and a bottom of the displacement gear is meshed and connected with the tooth groove.

[0009] A box girder hoisting device for facilitating adjustment of segment postures includes a crane main body arranged on a bridge section and a docking mechanism arranged on a segment. The fastening clamp devices are arranged on both sides of the crane main body. The crane main body includes a hoisting frame, a crane is fixedly installed at one end of the hoisting frame, and the crane is connected with the docking mechanism through a cable; a regulating component for horizontally regulating the posture of the cable is arranged at the other end of the hoisting frame.

[0010] As a further solution of the present invention: the regulating component includes a mounting frame, a plurality of lifting frames are fixedly connected to a top of the mounting frame, a transverse movement and orientation adjusting frame is slidably installed in an inner wall of the lifting frame, a receiving roller is rotatably connected inside the transverse movement and orientation adjusting frame, and a changing guide wheel is arranged above the transverse movement and orientation adjusting frame.

[0011] As a further solution of the present invention: a plurality of driving rollers are rotatably installed on both upper and lower sides of the transverse movement and orientation adjusting frame, bottom through grooves are formed on both sides of a bottom of the lifting frame, and side through grooves are formed at both ends of the lifting frame.

[0012] As a further solution of the present invention: a plurality of driving rollers located below the transverse movement and orientation adjusting frame are arranged between two bottom through grooves, and a distance between the plurality of driving rollers located below the transverse movement and orientation adjusting frame is greater than a distance between the plurality of driving rollers located above the transverse movement and orientation adjusting frame.

[0013] As a further solution of the present invention: the docking mechanism includes a docking cover plate, a plurality of docking lifting lugs are arranged below the docking cover plate, bottoms of the plurality of docking lifting lugs are fixedly connected with the segment, lifting installation rings are arranged in middles of the plurality of docking lifting lugs, and a docking insertion rod is slidably connected to one end of the docking cover plate, and one end of the docking insertion rod sequentially passes through the plurality of lifting installation rings and the docking lifting lugs.

[0014] As a further solution of the present invention: an adjusting oil cylinder is fixedly installed on a top inner wall of the docking cover plate, a clamping component for limiting the cable is arranged at an output end of the adjusting oil cylinder, and the clamping component includes a clamping disc, and a clamping groove is formed in an inner wall of the clamping disc.

[0015] As a further solution of the present invention, a supporting plate is slidably connected to one side of the clamping disc, one side of the supporting plate is rotatably connected to an output end of the adjusting oil cylinder, and a locking bolt is threadedly connected to an edge of the supporting plate.

[0016] As a further solution of the present invention: A number of limiting blocks are snap-connected to the inner wall of the clamping groove, and arc-shaped grooves are formed on both sides of the number of limiting blocks.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: By setting the adjustment assembly, the horizontal sliding operation of the horizontal displacement and orientation adjustment frame is utilized to achieve the horizontal pushing and offset of the cable. With the synchronous pushing operation of a number of horizontal displacement and orientation adjustment frames, each group of cables is driven to shift synchronously, automatically realizing the overall horizontal displacement operation of the box girder segment, avoiding the trouble caused by manual horizontal pushing operation, and thus improving the working efficiency of the box girder hoisting construction. The docking mechanism of the present invention is arranged on the segment. It drives the clamping disc to expand and contract through the adjustment oil cylinder, changes the posture of the traction cable, and assists in realizing the fine adjustment of the box girder posture; through the mutual sliding of the supporting plate and the clamping disc, the adjustment of the pushing direction of the clamping disc is realized, and the limiting block is snap-connected to different positions of the arc-shaped groove, changing the limiting position of the cable, so that the pushing distance and pushing angle of the adjustment oil cylinder on the clamping assembly are variable, that is, the flexible adjustment of the cable pushing direction is realized, improving the ability to adjust and correct the posture of the box girder. A fastening clamp device provided by the present invention drives the fastening frame to rise and fall through the fastening oil cylinder, and presses against the bridge section from below the edge of the bridge section, thereby improving the installation stability of the crane main body; at the same time, the side frame is driven to move horizontally through the horizontal displacement oil cylinder, changing the distance between the two side frames, and realizing the stable clamping and adaptation of bridge sections of different widths. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a perspective view of the present invention; Figure 2 is the working state of the adjustment assembly of the present invention Figure 1 ; Figure 3 is the working state of the adjustment assembly of the present invention Figure 2 ; Figure 4 is a sectional view of the docking mechanism of the present invention; Figure 5 is a top view of the clamping assembly of the present invention; Figure 6 is a sectional view of the fastening assembly of the present invention; Figure 7 is a schematic diagram of the position structure of the shifting gear of the present invention; Figure 8 is a schematic diagram of the position layout of the bridge section and the segment of the present invention.

[0019] In the figure: 1, bridge section; 2, segment; 3, crane body; 4, adjustment assembly; 401, lifting frame; 402, lateral shifting frame; 403, driving roller; 404, bottom slot; 405, receiving roller; 406, reversing guide wheel; 407, cable; 408, lifting installation ring; 409, side slot; 410, guide roller; 5, docking mechanism; 501, docking cover plate; 502, docking lifting ear; 503, docking plug rod; 5 04. Snap-on cover plate; 505. Adjusting cylinder; 506. Snap-on assembly; 5061. Snap-on plate; 5062. Limiting block; 5063. Arc groove; 5064. Support plate; 6. Fastening assembly; 601. Frame; 602. Transverse cylinder; 605. Side frame; 606. Fastening cylinder; 607. Lifting plate; 608. Fastening frame; 609. Friction pad; 610. Support roller; 611. Tooth groove; 612. Shift gear. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] See also Figure 8 The embodiment of the present invention provides a box girder hoisting device that is convenient for adjusting the segment posture, which is used to solve the installation and hoisting problem between the steel box girder segment 2 and the concrete pier segment 2 structure during the construction of the steel-concrete bridge; that is, Figure 8 The bridge sections 1 are arranged on the piers, and the adjacent bridge sections 1 are connected by multiple segments 2; due to the design requirements of the bridge, each bridge section 1 often adopts an arch structure. Due to the influence of the curvature of the arch structure, when the segment 2 is hoisted and assembled between the bridge section 1, it is often necessary to maintain a certain angle of inclination to meet the installation and connection requirements between it and the bridge section 1; that is, a simple lifting and translation type hoisting method is difficult to meet the installation requirements of the segment 2, and it is necessary to have a certain ability to adjust the posture of the segment 2.

[0022] See also Figure 1, the box girder hoisting equipment of the present application includes a crane main body 3 arranged on the bridge section 1 and a docking mechanism 5 arranged on the segment 2. The crane main body 3 includes a hoisting frame. One end of the hoisting frame is fixedly installed with a crane, and the crane is connected to the docking mechanism 5 through a cable 407. The other end of the hoisting frame is provided with an adjusting assembly 4 for horizontally adjusting the attitude of the cable 407. The existing method for adjusting the attitude of the box girder often relies on setting two sets of lifting ropes on the box girder and adjusting the lifting distances of the two sets of lifting ropes to achieve the adjustment of the inclination state of the box girder segment 2. Due to the large self-weight of the box girder, during actual use, a large crane is required for hoisting operations. However, when using a large crane to control the two sets of lifting ropes to drive the box girder for inclination adjustment, its control accuracy often fails to meet the requirements, and thus a team of construction workers needs to enter the end position of the bridge section 1 for manual assistance. At the same time, this adjustment method cannot achieve the horizontal displacement adjustment of the box girder segment 2. Therefore, when the segment 2 needs to be horizontally offset due to factors such as bridge design or lateral crosswind, it can only rely entirely on manual pushing for adjustment, which is rather inconvenient. Therefore, the present application proposes an adjusting assembly 4 that can assist in realizing the horizontal displacement of the box girder.

[0023] Specifically, please refer to Figure 3 , the adjusting assembly 4 includes a mounting frame. The top of the mounting frame is fixedly connected with a plurality of lifting frames 401. The inner walls of the plurality of lifting frames 401 are all slidably installed with a horizontal displacement and orientation adjustment frame 402. Both ends of the inner wall of the horizontal displacement and orientation adjustment frame 402 are rotatably connected with a receiving roller 405. The outer wall of the receiving roller 405 is provided with a receiving groove for accommodating the cable 407. The top of the inner wall of the lifting frame 401 is rotatably installed with a guide pulley 406 for changing the direction of the cable 407. When the cable 407 enters the lifting frame 401, it is along the direction of the hoisting frame and changes to downward after passing through the guide pulley 406, which is convenient for it to pass through the through grooves at different positions. To support the cable 407 and assist in adjusting its direction change, a guiding roller 410 is arranged below the guide pulley 406.

[0024] The adjusting assembly 4 of the present application has two usage states. When horizontal horizontal displacement and orientation adjustment are required, its state is as shown in Figure 3 . At this time, the cable 407 is limited by the receiving groove on the receiving roller 405, and in cooperation with the horizontal sliding operation of the horizontal displacement and orientation adjustment frame 402, the cable 407 is pushed horizontally. Through the synchronous pushing operations of a plurality of horizontal displacement and orientation adjustment frames 402, the groups of cables 407 are driven to be synchronously offset, and then the overall horizontal offset operation of the box girder segment 2 connected thereto is driven.

[0025] When performing horizontal translation, the cable 407 will tilt after being horizontally pushed by the receiving roller 405 and is sent out from both sides of the lifting frame 401. To realize the sending out of the cables 407 on both sides, through holes for the horizontal translation and steering frame 402 to pass through are opened at both ends of the lifting frame 401, and side through grooves 409 are opened above the through holes. The width of the side through groove 409 is slightly larger than the width of the cable 407.

[0026] In one embodiment, to realize the automatic horizontal translation operation of the horizontal translation and steering frame 402, a plurality of driving rollers 403 are rotatably installed on both the upper and lower sides of the horizontal translation and steering frame 402. By setting the driving rollers 403 on both sides, the clamping and limiting of the horizontal translation and steering frame 402 are realized, and the stability of the horizontal translation and steering frame 402 during horizontal movement is improved. Through the rotation of the driving rollers 403, the horizontal translation and steering frame 402 is pushed and driven to move by using the frictional force between the driving rollers 403 and the horizontal translation and steering frame 402. To increase the pushing frictional force, an anti-slip pad is fixedly connected to the outer wall of the driving roller 403; specifically, a meshing structure of gear teeth 611 can also be provided between the outer wall of the driving roller 403 and the horizontal translation and steering frame 402.

[0027] Bottom through grooves 404 are opened on both sides of the bottom of the lifting frame 401. When horizontal adjustment is not required, after the cable 407 enters the lifting frame 401 and is redirected by the redirecting guide wheel 406, the cable 407 is led out through the bottom through grooves 404. This state is as Figure 2 shown. To reduce the resistance of the cable 407 during movement; in this application, the receiving roller 405 and the driving roller 403 are used to limit and support the cable 407. Specifically, a plurality of driving rollers 403 below the horizontal translation and steering frame 402 in this application are arranged between the two bottom through grooves 404, and the distance between a plurality of driving rollers 403 below the horizontal translation and steering frame 402 is greater than the distance between a plurality of driving rollers 403 above the horizontal translation and steering frame 402. The distance between the two receiving rollers 405 is greater than the distance between the two bottom through grooves 404. In this way, in the usage state where the cable 407 is led out through the bottom through grooves 404, the cable 407 can bypass the edges of the two groups of driving rollers 403 and pass out through the bottom through grooves 404.

[0028] In one embodiment, please refer to Figure 4, to achieve the installation connection between the docking mechanism 5 and the box girder segment 2, the docking mechanism 5 includes a docking cover plate 501. Two groups of docking lifting lugs 502 are arranged below the docking cover plate 501. The bottom of each group of docking lifting lugs 502 is fixedly connected to the box girder segment 2. Each group of docking lifting lugs 502 includes two that are arranged in parallel, and a gap for accommodating the lifting installation ring 408 is arranged in the middle of the two docking lifting lugs 502 in the same group. The width of the gap matches the thickness of the lifting installation ring 408, so that the lifting installation ring 408 can lift and slide in the gap, thus facilitating the alignment and installation operation of the lifting installation ring 408 and the insertion interface; the top of the lifting installation ring 408 is fixedly connected to the bottom end of the cable 407. One end of the docking cover plate 501 is provided with an insertion interface, and the position of the insertion interface corresponds to the position of the ear hole of the docking lifting lug 502. A docking insertion rod 503 is slidably connected to the insertion interface. To improve the stability during the lifting process, the inner diameter of the insertion interface matches the diameter of the docking insertion rod 503. One end of the docking insertion rod 503 sequentially passes through several lifting installation rings 408 and docking lifting lugs 502 and is snap-fitted and docked with the other end of the docking cover plate 501. The other end of the docking insertion rod 503 is fixedly connected to a snap-fitting cover plate 504. The snap-fitting cover plate 504 is snap-fitted with the inner wall of the insertion interface, and a pull handle is fixedly connected to one side of the snap-fitting cover plate 504.

[0029] In one embodiment, a regulating oil cylinder 505 is fixedly installed at the top of the inner wall of the docking cover plate 501. A clamping component 506 for limiting the cable 407 is arranged at the output end of the regulating oil cylinder 505. Please refer to Figure 5 , the clamping component 506 includes a clamping disc 5061. A clamping groove is arranged on the inner wall of the clamping disc 5061. The width of the clamping groove meets the movement requirement of the cable 407 inside it; the clamping disc 5061 is driven by the regulating oil cylinder 505 to stretch and move, pulling the cable 407 to change its posture, and assisting in realizing the fine adjustment of the posture of the box girder segment 2.

[0030] In one embodiment, to achieve the inclined push of the posture of the cable 407 and improve the posture adjustment ability of the box girder, a supporting plate 5064 is slidably connected to one side of the clamping disc 5061. One side of the supporting plate 5064 is rotatably connected to the output end of the regulating oil cylinder 505. A locking bolt is threadedly connected to the edge of the supporting plate 5064. By the mutual sliding of the supporting plate 5064 and the clamping disc 5061, the adjustment of the pushing direction of the clamping disc 5061 is realized. Further, the supporting plate 5064 is fixed by the locking bolt to ensure the stable position between the clamping disc 5061 and the supporting plate 5064 during the pushing process.

[0031] In one embodiment, the clamping groove is arranged in an arc shape, and a plurality of limiting blocks 5062 are clamped and connected to the inner wall of the clamping groove. Arc-shaped grooves 5063 are formed on both sides of the plurality of limiting blocks 5062. The arc-shaped grooves 5063 on two adjacent limiting blocks 5062 enclose each other to form a limiting cavity for the cable 407 to pass through. By clamping and connecting the limiting blocks 5062 at different positions in the arc-shaped grooves 5063, the position of the cable 407 is changed, so that the pushing distance and pushing angle of the adjusting oil cylinder 505 on the clamping assembly 506 can be flexibly adjusted.

[0032] In one embodiment, please refer to Figure 1 and Figure 6 This application provides a fastening assembly 6 for assisting in the installation and connection of the crane main body 3 and the bridge section 1. Specifically, two fastening assemblies 6 are symmetrically arranged on both sides of the lifting frame and are fixedly connected to the bottom of both sides of the lifting frame; the fastening assembly 6 includes a frame 601. A transverse movement oil cylinder 602 is fixedly installed on one side of the two frames 601. The output end of the transverse movement oil cylinder 602 is fixedly connected to a side frame 605. A fastening oil cylinder 606 is fixedly installed on the inner wall of the side frame 605. The output end of the fastening oil cylinder 606 is provided with a fastening frame 608. One side of the fastening frame 608 is provided as an inclined surface, and a friction cushion plate 609 is fixedly installed in the middle of the inclined surface; by driving the side frame 605 to move transversely through the transverse movement oil cylinder 602, the distance between the two side frames 605 is changed to achieve stable clamping and adaptation to bridge sections 1 of different widths. By driving the fastening frame 608 to move up and down through the fastening oil cylinder 606, the bridge section 1 is tightened from below the edge of the bridge section 1, thereby improving the installation stability of the crane main body 3.

[0033] In one embodiment, a movable cavity is formed in the middle of the fastening frame 608. A plurality of supporting rollers 610 are rotatably installed on the top inner wall of the movable cavity. A lifting plate 607 is arranged inside the movable cavity. The center of the top of the lifting plate 607 is fixedly connected to the output end of the fastening oil cylinder 606, which is convenient for adjusting the position of the fastening frame 608 in a sliding manner, thereby changing the stress state of the lifting equipment and improving the position stability of the lifting equipment during the lifting process.

[0034] In one embodiment, please refer to Figure 1 and Figure 7 To realize the automatic adjustment of the position of the fastening frame 608, a displacement motor is fixedly installed in the middle of the side frame 605. The position of the displacement motor is arranged in a dislocation manner with respect to the fastening oil cylinder 606. The output end of the displacement motor is fixedly connected to a displacement gear 612. A tooth groove 611 is formed on the bottom inner wall of the movable cavity. The bottom of the displacement gear 612 is meshed with the tooth groove 611. By driving the displacement gear 612 to rotate through the moving motor, the fastening frame 608 is driven to perform a translation operation along the length direction of the bridge section 1.

[0035] When the present invention is in use, first install the hoisting device at the end position of the bridge section 1, then drive the shifting gear 612 to rotate by the shifting motor, thereby driving the fastening frame 608 to move along the length direction of the bridge section 1. Then, drive the side frame 605 to retract by the transverse movement oil cylinder 602 to contact and press tightly against both sides of the bridge section 1. Then, start the fastening oil cylinder 606 to drive the fastening frame 608 to rise, so that the inclined surface on the fastening frame 608 is in tight contact with the bottom edge of the bridge section 1, realizing the connection between the fastening assembly 6 and the bridge section 1. Utilize the contact between the fastening frame 608 and the bridge section 1 to disperse and bear the pulling force on the hoisting device during the hoisting process; Then perform the hoisting operation, specifically: first start the crane to drive the cable 407 and the docking cover plate 501 to move down to the position where the box girder is located, and cooperate with manual movement of the docking cover plate 501 to move the lifting installation ring 408 to the middle of the docking lifting lug 502. Then, pull up the docking insertion rod 503 by pulling the handle and insert it through the insertion opening, and sequentially pass through the docking lifting lug 502 and the lifting installation ring 408, so that when the lifting installation ring 408 is lifted, it can drive the docking lifting lug 502 and the box girder connected thereto as a whole to perform the lifting and hoisting operation; After the docking insertion rod 503 is installed, start the crane, wind up and pull the lifting installation ring 408 by the cable 407, drive the box girder segment 2 to rise through the docking insertion rod 503 and the docking lifting lug 502, so that the box girder segment 2 is initially aligned with the bridge section 1. Then, adjust the lengths of the two cables 407 to drive the box girder to tilt; if a small adjustment of the box girder tilt is required, start the adjustment oil cylinder 505 to pull or push the clamping assembly 506 to move, drive the cable 407 to tilt and twist, and then drive the box girder to tilt to achieve a small adjustment; When horizontal adjustment is required, use the supporting rollers 405 to support and limit the cable 407. The passing state of the cable 407 in the adjustment assembly 4 is as Figure 5 shown. Rotate a plurality of driving rollers 403 to drive the transverse movement and orientation frame 402 to move transversely. Drive the cable 407 to move transversely through the pushing of the supporting rollers 405. The transverse movement and orientation frames 402 in a plurality of lifting frames 401 move transversely synchronously, drive a plurality of cables 407 to move transversely synchronously, and then drive the box girder hung by it to move horizontally transversely.

[0036] The above is only a preferred embodiment of the present invention, and it does not impose any form of limitation on the present invention. Although the present invention has been disclosed above with a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments by using the disclosed technical content within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A fastening clamp device for a box girder hoisting equipment, characterized in that The invention comprises two symmetrically arranged fastening assemblies (6), wherein the two fastening assemblies (6) comprise a frame (601), a lateral displacement cylinder (602) being fixedly mounted on one side of the frame (601), an output end of the lateral displacement cylinder (602) being fixedly connected to a side frame (605), a fastening cylinder (606) being fixedly mounted on the inner wall of the side frame (605), and a fastening frame (608) being arranged at the output end of the fastening cylinder (606).

2. The fastening clamp device of a box girder hoisting device according to claim 1, characterized in that, A movable cavity is provided in the middle of the fastening frame (608), a plurality of supporting rollers (610) are rotatably mounted on the top of the inner wall of the movable cavity, a lifting plate (607) is provided inside the movable cavity, and the top center of the lifting plate (607) is fixedly connected to the output end of the fastening oil cylinder (606).

3. The fastening clamp device of a box girder hoisting device according to claim 2, characterized in that, A shift motor is fixedly mounted in the middle of the side frame (605), and a shift gear (612) is fixedly connected to the output end of the shift motor. A tooth groove (611) is provided at the bottom of the inner wall of the movable cavity, and the bottom of the shift gear (612) is meshedly connected to the tooth groove (611).

4. A box girder hoisting device facilitating the adjustment of the segment attitude, characterized in that, The invention comprises a crane body (3) arranged on a bridge section (1) and a docking mechanism (5) arranged on a segment (2), wherein both sides of the crane body (3) are provided with a fastening clamp device as described in any one of claims 1 to 3, and the crane body (3) comprises a hoisting frame, a crane is fixedly mounted on one end of the hoisting frame, and the crane is connected to the docking mechanism (5) via a cable (407); and an adjustment component (4) for horizontally adjusting the posture of the cable (407) is arranged at the other end of the hoisting frame.

5. The box girder hoisting device for facilitating the adjustment of the segment attitude according to claim 4, characterized in that, The adjustment assembly (4) comprises a mounting frame, the top of which is fixedly connected to a plurality of lifting frames (401), the inner wall of the lifting frame (401) is slidably mounted with a transverse shifting and adjusting frame (402), the interior of the transverse shifting and adjusting frame (402) is rotatably connected to a receiving roller (405), and a reversing guide wheel (406) is arranged above the transverse shifting and adjusting frame (402).

6. The box girder hoisting equipment for facilitating the adjustment of the segment attitude according to claim 5, wherein, A plurality of driving rollers (403) are rotatably mounted on both upper and lower sides of the transverse shifting and steering frame (402), bottom through grooves (404) are provided on both sides of the bottom of the lifting frame (401), and side through grooves (409) are provided at both ends of the lifting frame (401).

7. A box girder hoisting device for facilitating the adjustment of the segment attitude according to claim 6, characterized in that A plurality of driving rollers (403) located below the transverse shifting and steering frame (402) are arranged between two bottom through slots (404), and a spacing between the plurality of driving rollers (403) located below the transverse shifting and steering frame (402) is greater than a spacing between the plurality of driving rollers (403) located above the transverse shifting and steering frame (402).

8. A box girder hoisting device for facilitating the adjustment of segment postures according to claim 4, characterized in that The docking mechanism (5) includes a docking cover plate (501). A number of docking lugs (502) are arranged below the docking cover plate (501). The bottoms of the number of docking lugs (502) are fixedly connected to the segment (2). Lifting installation rings (408) are arranged in the middles of the number of docking lugs (502). One end of the docking cover plate (501) is slidably connected with a docking plug rod (503). One end of the docking plug rod (503) sequentially passes through the number of lifting installation rings (408) and docking lugs (502).

9. The box girder hoisting equipment for facilitating the adjustment of the segment attitude according to claim 8, characterized in that, A regulating oil cylinder (505) is fixedly installed at the top of the inner wall of the docking cover plate (501). A clamping component (506) for limiting the cable (407) is arranged at the output end of the regulating oil cylinder (505). The clamping component (506) includes a clamping disc (5061). A clamping groove is formed in the inner wall of the clamping disc (5061).

10. A box girder hoisting device for facilitating the adjustment of the segment attitude according to claim 9, characterized in that, A number of limiting blocks (5062) are snap-fitted to the inner wall of the clamping groove. Arc-shaped grooves (5063) are formed on both sides of the number of limiting blocks (5062).

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