Method of hoisting a cable crane

Abstract

The present application relates to the technical field of bridge construction, and provide a kind of hoisting method and hoisting system of cable crane, the hoisting method of cable crane includes: by two the trolley respectively two running mechanisms are moved to the upper of main cable using lifting point conversion mode, two running mechanisms are connected to the set position of main cable;By two trolley respectively two main girder section is moved to the upper of running mechanism using lifting point conversion mode, two main girder sections are connected to running mechanism respectively;By two trolley cooperation, intermediate truss girder is lifted to between two main girder sections, and two ends of intermediate truss girder are connected to main girder section respectively;Two cable winding machines are lifted to corresponding running mechanism respectively, and two cable winding machines are connected to corresponding running mechanism;The present application can be applicable to the portal frame with smaller structure and without sliding system in the early design stage, increase the application range and versatility of hoisting system.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bridge construction, in particular to a hoisting method of a cable crane. BACKGROUND

[0002] Generally, due to large span and high height, a special crane such as a cable crane of a suspension bridge (hereinafter referred to as a cable crane) is arranged on the main cable to complete the installation and maintenance of the suspension cable, the tower, the steel beam and other large components. The cable crane mainly includes a running mechanism, a main beam section, an intermediate truss beam, a cable crane winch, a winding disc and a guide frame.

[0003] In the related art, the cable crane is hoisted in the following manner, for example, a hoisting system is installed on the top of the tower of the suspension bridge, the hoisting system mainly includes a portal frame and a sliding system, the portal frame is installed on the top of the tower, and the sliding system includes a cylinder assembly and a trolley set, the cylinder assembly and the trolley set are installed on the portal frame, the lower part of the trolley set is provided with a lifting appliance, and the cylinder assembly drives the trolley set to move horizontally on the portal frame to hoist each component of the cable crane in sequence to the portal frame through the lifting appliance, and then each component is transferred to the main cable for assembly to form the cable crane.

[0004] Since each component of the cable crane needs to be transferred between the portal frame and the main cable by cooperation of the cylinder assembly and the trolley set, the design width of the portal frame in the transverse direction of the bridge is large, and a corresponding sliding system needs to be configured. However, the portal frame designed in the early stage usually has a small width and cannot be used for hoisting the cable crane by the above-mentioned hoisting system, so that the adaptability of the hoisting method for hoisting the cable crane is weak. SUMMARY

[0005] The problem to be solved by the present application is how to hoist each component of the cable crane on a portal frame with a small structure in the early stage of design and assemble them.

[0006] To solve the above-mentioned problem, the present application provides a hoisting method of a cable crane, which is suitable for a hoisting system, the hoisting system includes a portal frame, two hoisting distribution beams and two trolley parts, the top of the portal frame is respectively provided with the hoisting distribution beams at both ends in the width direction, and each hoisting distribution beam is respectively provided with a trolley part; the trolley part includes a plurality of trolley structures, and the plurality of trolley structures are installed on the hoisting distribution beam in the width direction; the cable crane includes an intermediate truss beam, two running mechanisms, two main beam sections and two cable crane winches.

[0007] The hoisting method of the cable crane includes the following steps:

[0008] The two traveling mechanisms are respectively moved to the upper side of the main cable by the two pulley parts in a lifting point conversion mode, and the two traveling mechanisms are connected to the set positions of the main cable;

[0009] The two main beam segments are respectively moved to the upper side of the corresponding traveling mechanism by the two pulley parts in a lifting point conversion mode, and the two main beam segments are respectively connected to the corresponding traveling mechanism;

[0010] The intermediate truss beam is lifted between the two main beam segments by the cooperation of the two pulley parts, and the two ends of the intermediate truss beam are respectively connected to the two main beam segments;

[0011] The two cable load winches are respectively lifted to the corresponding traveling mechanism, and the two cable load winches are respectively connected to the corresponding traveling mechanism.

[0012] Optionally, the plurality of pulley structures from the outer side of the two pulley parts to the intermediate position are respectively defined as the first pulley structure and the third pulley structure;

[0013] The two traveling mechanisms are respectively moved to the upper side of the main cable by the two pulley parts in a lifting point conversion mode, and the two traveling mechanisms are connected to the set positions of the main cable;

[0014] The traveling mechanism is vertically lifted by the third pulley structure of the pulley part, and the bottom of the traveling mechanism is higher than the top of the main cable, at this time the traveling mechanism is in the region between the two main cables;

[0015] The traveling mechanism is transferred from the lifting point of the third pulley structure to the lifting point of the first pulley structure to realize the lifting point conversion of the traveling mechanism between the third pulley structure and the first pulley structure, so as to move the traveling mechanism to the main cable;

[0016] The first pulley structure lowers the traveling mechanism to the main cable to connect the traveling mechanism to the set position of the main cable.

[0017] Optionally, the third pulley structure transfers the traveling mechanism to the first pulley structure includes:

[0018] The hook of the first pulley structure and the hook of the third pulley structure share a shack;

[0019] The third pulley structure is gradually unhooked, the first pulley structure is gradually hooked and pulled, and the walking mechanism is moved to the top of the main cable; when the first pulley structure is fully stressed, the connection between the hook of the third pulley structure and the shackle is released.

[0020] Optionally, the third pulley structure further comprises:

[0021] After the connection between the hook of the third pulley structure and the shackle is released, a twist prevention device is connected between the portal frame and the walking mechanism;

[0022] A pulling device is installed on the hook of the first pulley structure to adjust the first pin shaft hole of the walking mechanism to be in line with the center of the hoisting distribution beam.

[0023] Optionally, the pulley part comprises three pulley structures spaced along the width direction, and the three pulley structures are defined as the first pulley structure, the second pulley structure and the third pulley structure from the outside to the middle position of the two pulley parts.

[0024] The main beam segment at the corresponding position is moved to the top of the walking mechanism by the two pulley parts in a lifting point conversion manner, so that the main beam segment is connected to the walking mechanism.

[0025] The main beam segment is vertically lifted by the third pulley structure of one pulley part, and the height of the main beam segment is matched with the height of the catwalk below the main cable.

[0026] The main beam segment is transferred from the lifting point of the third pulley structure to the lifting point of the second pulley structure to realize the lifting point conversion of the main beam segment between the third pulley structure and the second pulley structure, so as to move the main beam segment to the walking mechanism.

[0027] The main beam segment and the walking mechanism on the corresponding side are connected through the first pin shaft structure.

[0028] Optionally, the third pulley structure further comprises:

[0029] The hook of the second pulley structure shares the shackle with the hook of the third pulley structure.

[0030] The third pulley structure is gradually unhooked, the second pulley structure is gradually hooked and pulled, and the main beam segment is moved to the top of the walking mechanism.

[0031] The second pin shaft hole of the main beam segment is aligned with the first pin shaft hole of the walking mechanism.

[0032] Optionally, the hoisting of each of the cable hoist to each of the traveling mechanism, so that the cable hoist is connected to the traveling mechanism comprises:

[0033] hoisting two cable hoists to the top of the traveling mechanism by a tower crane respectively;

[0034] The cable hoist is connected to the traveling mechanism by a bolt fastener.

[0035] Optionally, the cable crane further comprises two wire reels and two guide frames;

[0036] The hoisting method of the cable crane further comprises:

[0037] cooperating with the trolley part by a tower crane to hoist two wire reels to the intermediate truss beam respectively;

[0038] cooperating with the trolley part by a tower crane to hoist two wire reels to the intermediate truss beam respectively;

[0039] Optionally, the trolley part comprises three trolley structures spaced along the width direction, and the three trolley structures are defined as the first trolley structure, the second trolley structure and the third trolley structure from the outside of the two trolley parts to the middle position respectively;

[0040] The hoisting of each of the cable hoist to each of the traveling mechanism, so that the cable hoist is connected to the traveling mechanism comprises:

[0041] removing two cross rod connection systems in the intermediate truss beam;

[0042] hoisting two wire reels to the top of the intermediate truss beam by the tower crane respectively;

[0043] The second trolley structure cooperates with the third trolley structure to adopt the hoisting point conversion mode to move the wire reel to the inside of the intermediate truss beam, and the wire reel is installed in the inside of the intermediate truss beam.

[0044] Compared with the prior art, the present application can hoist and assemble the components of the cable crane in the following manner: for example, two trolley parts arranged along the width direction of the portal can hoist running mechanisms at different positions respectively (in other words, one trolley part hoists the running mechanism on the corresponding side), the running mechanisms are respectively moved above the main cables on the corresponding side by using the lifting point conversion mode, and then the running mechanisms are connected with the set positions of the main cables to realize the installation of the two running mechanisms on the two main cables; two trolley parts can hoist main beam segments at different positions respectively, and then the two main beam segments are respectively moved above the running mechanisms on the corresponding side by using the lifting point conversion mode, and then the main beam segments are connected with the running mechanisms to realize the installation of the two main beam segments on the two running mechanisms; the intermediate truss beam is hoisted between the two main beam segments by two trolley parts cooperating with each other, and then the two ends of the intermediate truss beam in the extension direction are connected with the main beam segments respectively to realize the fixation of the intermediate truss beam between the two main beam segments; and the two cable hoists are hoisted to the running mechanisms at the corresponding positions respectively, and then the cable hoists are connected with the running mechanisms to realize the fixation of the cable hoists on the running mechanisms.

[0045] Briefly, the lifting point conversion mode in the hoisting method (that is, the lifting points of the multiple trolley structures in the trolley part are converted to cooperate with each other) can hoist and move the components of the cable crane to the vicinity of the main cables, and then the components are assembled and connected after being hoisted in place. Since the trolley structures do not displace on the portal during the hoisting of the components of the cable crane, the hoisting system can be applied to the portal with a small structure and without a sliding system at the design initial stage, thereby increasing the application range and universality of the hoisting system. Moreover, the portal structure required by the hoisting method does not need to be large, which reduces the materials of the portal and improves the economy.

[0046] The present application also provides a hoisting system of a cable crane, which comprises a portal, two hoisting distribution beams and two trolley parts, the two ends of the top of the portal along the width direction are respectively provided with the two hoisting distribution beams, and one trolley part is arranged on each hoisting distribution beam.

[0047] Since the hoisting system of the cable crane is hoisted by using the hoisting method of the cable crane, the hoisting system of the cable crane at least has all the technical effects of the hoisting method of the cable crane, which will not be described herein. BRIEF DESCRIPTION OF DRAWINGS

[0048] Figure 1 The flowchart of the hoisting method of the cable crane in the embodiments of the present application;

[0049] Figure 2This is one of the schematic diagrams of the state structure of the hoisting traveling mechanism in an embodiment of the present invention;

[0050] Figure 3 This is the second schematic diagram of the state structure of the hoisting traveling mechanism in an embodiment of the present invention;

[0051] Figure 4 This is the third schematic diagram of the state structure of the hoisting traveling mechanism in this embodiment of the invention;

[0052] Figure 5 This is the fourth schematic diagram of the state structure of the hoisting traveling mechanism in this embodiment of the invention;

[0053] Figure 6 This is a schematic diagram of the connection between the traveling mechanism and the main cable in an embodiment of the present invention;

[0054] Figure 7 This is one of the schematic diagrams of the segmented state structure of the hoisting main beam in an embodiment of the present invention;

[0055] Figure 8 This is the second schematic diagram of the segmented state structure of the hoisting main beam in an embodiment of the present invention;

[0056] Figure 9 This is the third schematic diagram of the segmented state structure of the hoisting main beam in this embodiment of the invention;

[0057] Figure 10 This is the fourth schematic diagram of the segmented state structure of the hoisting main beam in this embodiment of the invention;

[0058] Figure 11 This is the fifth schematic diagram of the structural state of the main beam segment during hoisting in this embodiment of the invention;

[0059] Figure 12 This is the sixth schematic diagram of the segmented state structure of the hoisting main beam in this embodiment of the invention;

[0060] Figure 13 This is a schematic diagram of the state structure of the hoisting intermediate truss beam in an embodiment of the present invention;

[0061] Figure 14 This is a schematic diagram of the segmented connection between the intermediate truss beam and the main beam in an embodiment of the present invention;

[0062] Figure 15 This is a schematic diagram of the state structure of the hoisting cable-carrying winch in an embodiment of the present invention;

[0063] Figure 16 This is one of the schematic diagrams of the state structure of the hoisting reel in an embodiment of the present invention;

[0064] Figure 17 This is the second schematic diagram of the state structure of the hoisting reel in an embodiment of the present invention;

[0065] Figure 18 Figure 3 is a schematic diagram of the state structure of hoisting a winding drum in an embodiment of the present application;

[0066] Figure 19 Figure 4 is a schematic diagram of the state structure of hoisting a guide frame in an embodiment of the present application;

[0067] Figure 20 Figure 5 is a schematic diagram of the structure of a hoisting system of a cable crane in an embodiment of the present application.

[0068] Explanation of reference signs:

[0069] 1 - portal; 2 - hoisting distribution beam; 3 - trolley part; 31 - first trolley structure; 32 - second trolley structure; 33 - third trolley structure; 34 - shackle; 4 - anti-twist device; 5 - towing device; 6 - transmission device; 7 - adjusting pull rod; 8 - tower crane; 91 - running gear; 92 - main beam section; 93 - intermediate truss beam; 931 - crossbar connection system; 94 - cable crane; 95 - winding drum; 96 - guide frame; 10 - main cable; 11 - catwalk. DETAILED DESCRIPTION

[0070] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0071] It should be noted that in the coordinate system XYZ provided herein, the right direction is represented by the positive direction of the X axis, the left direction is represented by the negative direction of the X axis, the front direction is represented by the positive direction of the Y axis, the rear direction is represented by the negative direction of the Y axis, the upward direction is represented by the positive direction of the Z axis, and the downward direction is represented by the negative direction of the Z axis. At the same time, it should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0072] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances.

[0073] In the description of the present specification, the description referring to the terms "embodiment", "one embodiment", and "one implementation" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or implementation are included in at least one embodiment or implementation of the present application. In the present specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or implementation. Also, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or implementations in a suitable manner.

[0074] To solve the above technical problems, the present application provides a hoisting method of a cable crane, which is suitable for a hoisting system, and combines Figure 20 As shown in the figure, the hoisting system includes a portal 1, two hoisting distribution beams 2 and two trolley parts 3, the top of the portal 1 is respectively provided with the hoisting distribution beam 2 at both ends in the width direction, and each hoisting distribution beam 2 is respectively provided with the trolley part 3; the trolley part 3 includes a plurality of trolley structures, and the plurality of trolley structures are installed on the hoisting distribution beam 2 in the width direction; the cable crane includes an intermediate truss beam 93, two traveling mechanisms 91, two main beam sections 92 and two cable hoists 94;

[0075] As shown in the figure, the hoisting method of the cable crane includes the following steps: Figure 1

[0076] S1, by means of the two trolley parts 3, the two traveling mechanisms 91 are respectively moved to the upper side of the main cable 10 in a hoisting point conversion mode, and the two traveling mechanisms 91 are connected to the set position of the main cable 10;

[0077] S2, by means of the two trolley parts 3, the two main beam sections 92 are respectively moved to the upper side of the corresponding traveling mechanism 91 in a hoisting point conversion mode, and the two main beam sections 92 are respectively connected to the corresponding traveling mechanism 91;

[0078] S3, by means of the two trolley parts 3, the intermediate truss beam 93 is hoisted to the position between the two main beam sections 92, and the two ends of the intermediate truss beam 93 are respectively connected to the two main beam sections 92;

[0079] S4, the two cable hoists 94 are respectively hoisted to the corresponding traveling mechanism 91, and the two cable hoists 94 are respectively connected to the corresponding traveling mechanism 91.

[0080] ​It should be noted that the cable crane mainly includes the intermediate truss beam 93, the two traveling mechanisms 91, the two main beam segments 92 and the two cable crane winches 94, so the hoisting method of the cable crane is mainly used for hoisting each component respectively, and after hoisting in place, assembling and connecting are performed to assemble the cable crane. The hoisting in the embodiment includes but is not limited to the process of hoisting and installing.

[0081] The hoisting point conversion mode refers to cooperation of the trolley structures at different positions in the trolley part 3 to hoist different components of the cable crane.

[0082] The set position of the main cable 10 can be selected according to the area in which the cable crane is used for related construction work in the construction process of the suspension bridge, for example, the set position of the main cable 10 can be the position of the cable clamp of the main cable 10.

[0083] Among them, the suspension bridge has two main cables 10, and the upper part of each main cable 10 can be installed with a traveling mechanism 91, each traveling mechanism 91 can be installed with a main beam segment 92, and the intermediate truss beam 93 can be installed on the two main beam segments 92, and a cable crane winch 94 can be installed on each traveling mechanism 91.

[0084] The width direction of the top of the portal frame 1 refers to the width direction of the portal frame 1, which matches the arrangement direction of the two hoisting distribution beams 2, the arrangement direction of the two trolley parts 3 and the arrangement direction of the plurality of trolley structures in each trolley part 3, and the width direction of the portal frame 1 is perpendicular to the extension direction (i.e. the length direction) of the main cable 10.

[0085] In the embodiment, the components of the cable crane can be hoisted and assembled in the following manner. For example, in step S1, two trolley parts 3 arranged along the width direction of the portal 1 can be used to hoist the running mechanisms 91 at different positions, respectively, and the running mechanisms 91 can be moved to the upper side of the corresponding main cable 10 by using the lifting point conversion mode, and then the running mechanisms 91 can be connected to the set positions of the main cable 10, so as to install the two running mechanisms 91 on the two main cables 10. In step S2, two trolley parts 3 can be used to hoist the main beam segments 92 at different positions, respectively, and the main beam segments 92 can be moved to the upper side of the corresponding running mechanism 91 by using the lifting point conversion mode, and then the main beam segments 92 can be connected to the running mechanism 91, so as to install the two main beam segments 92 on the two running mechanisms 91. In step S3, two trolley parts 3 can be used to hoist the intermediate truss beam 93 between the two main beam segments 92, and then the two ends of the intermediate truss beam 93 in the extension direction can be connected to the main beam segments 92, so as to fix the intermediate truss beam 93 between the two main beam segments 92. In step S4, two cable hoists 94 can be hoisted to the corresponding running mechanisms 91, and then the cable hoists 94 can be connected to the running mechanisms 91, so as to fix the cable hoists 94 on the running mechanisms 91.

[0086] In short, by using the lifting point conversion mode in the lifting method (i.e., the lifting points of the multiple trolley structures in the trolley part 3 are converted to cooperate with each other), the components of the cable crane can be hoisted and moved to the vicinity of the main cable 10, and then assembled and connected after being hoisted in place. Since the trolley structures do not displace on the portal 1 during the hoisting of the components of the cable crane, the portal 1 with a small structure and without a sliding system at the design stage can be applied, thereby increasing the application range and versatility of the hoisting system. Moreover, the portal 1 structure required by the hoisting method does not need to be large, which is equivalent to reducing the materials of the portal 1 and improving the economy.

[0087] In an embodiment of the present application, the multiple trolley structures are defined as the first trolley structure 31 and the third trolley structure 33 from the outside of the two trolley parts 3 to the intermediate position.

[0088] S1, the two trolley parts 3 are used to move the running mechanisms 91 at the corresponding positions to the upper side of the main cable 10 by using the lifting point conversion mode, so that the running mechanisms 91 are connected to the set positions of the main cable 10.

[0089] S11, vertically hoisting the walking mechanism 91 through the third pulley structure 33 of one of the pulley parts 3, and making the bottom of the walking mechanism 91 higher than the top of the main cable 10, at this time the walking mechanism 91 is in the region between the two main cables 10;

[0090] S12, transferring the walking mechanism 91 from the lifting point of the third pulley structure 33 to the lifting point of the first pulley structure 31, to realize the lifting point conversion of the walking mechanism 91 between the third pulley structure 33 and the first pulley structure 31, and to transfer the walking mechanism 91 to the main cable 10;

[0091] S13, lowering the walking mechanism 91 to the main cable 10 by the first pulley structure 31, to connect the walking mechanism 91 to the set position of the main cable 10.

[0092] It should be noted that in the hoisting of a single walking mechanism 91, two pulley structures in the pulley part 3 are needed to cooperate, and the directions of the two pulley structures from the outer side to the middle position of the two pulley parts 3 can be defined as the first pulley structure 31 and the third pulley structure 33 respectively. The catwalk 11 is arranged below each main cable 10, which is a linear temporary construction access way suspended below and parallel to the main cable 10 during the construction of the suspension bridge.

[0093] In combination with FIGS. 1-3, Figure 2 and Figure 3 As shown in the above step S11, the corresponding side walking mechanism 91 can be vertically hoisted by the third pulley structure 33 in the two pulley parts 3, and during the hoisting process, since the walking mechanism 91 is in the region between the two main cables 10, the bottom of the walking mechanism 91 needs to be higher than the top of the main cable 10, so that the walking mechanism 91 avoids the catwalk 11 and the main cable 10, to reserve sufficient transfer space for the walking mechanism 91 in the subsequent step of transferring to the exact above of the main cable 10, to avoid collision.

[0094] Since the first pulley structure 31 is basically above the main cable 10, and the two third pulley structures 33 are in the region between the two first pulley structures 31; in step S12, after the bottom of the walking mechanism 91 is higher than the top of the main cable 10, the lifting point conversion mode can be used to transfer the walking mechanism 91 to the first pulley structure 31 by the third pulley structure 33, at this time the walking mechanism 91 can be basically above the main cable 10.

[0095] In step S13, the walking mechanism 91 is lowered to the main cable 10 by the first pulley structure 31, so as to be installed on the main cable 10. The set position can be a cable clamp or a position adjacent to the cable clamp on the main cable 10.

[0096] In an embodiment of the present application, S12, the third pulley structure 33 transfers the walking mechanism 91 to the first pulley structure 31, comprising:

[0097] S121, the hooks of the first pulley structure 31 and the hooks of the third pulley structure 33 share a shackle 34;

[0098] S122, the third pulley structure 33 is gradually unhooked, the first pulley structure 31 is gradually hooked to drag, and the walking mechanism 91 is moved to the top of the main cable 10; when the first pulley structure 31 is fully stressed, the connection between the hooks of the third pulley structure 33 and the shackle 34 is released.

[0099] It should be noted that the shackle 34 refers to a buckle used to connect the hooks of the first pulley structure 31 and the third pulley structure 33 together; in step S121, when the walking mechanism 91 is vertically lifted by the third pulley structure 33 to be higher than the main cable 10, the hooks of the first pulley structure 31 and the hooks of the third pulley structure 33 are connected by a shackle 34 (see Figure 3 illustrated), thereby preparing for the subsequent action of moving the walking mechanism 91 in the oblique upper side of the main cable 10 to the top of the main cable 10.

[0100] In step S122, while the hooks of the third pulley structure 33 are gradually loosened, the hooks of the first pulley structure 31 are gradually tightened to drag the walking mechanism 91, and the speed is kept stable during the loosening and tightening of the hooks of the two pulley structures, so as to avoid the walking mechanism 91 from being moved too much or from being tilted, and then the walking mechanism 91 can be moved to the top of the main cable 10 (see Figure 5 illustrated), and when the walking mechanism 91 is stable, the connection between the hooks of the third pulley structure 33 and the shackle 34 can be released.

[0101] Among them, the moving process of the walking mechanism 91 refers to the process of moving the walking mechanism 91 from mainly relying on the third pulley structure 33 to lift the gravity of the walking mechanism 91 in step S121 to moving the walking mechanism 91 to the top of the main cable 10 under the cooperation of the loosening of the third pulley structure 33 and the loosening of the first pulley structure 31 in step S122.

[0102] In an embodiment of the present application, the third pulley structure 33 transfers the walking mechanism 91 to the first pulley structure 31, further comprising:

[0103] S123, after the connection between the hooks of the third pulley structure 33 and the shackle 34 is released, a twist prevention device 4 is connected between the portal frame 1 and the walking mechanism 91;

[0104] S124, install the towing device 5 on the hook of the first pulley structure 31 to adjust the first pin shaft hole of the walking mechanism 91 to be in line with the center of the hoisting distribution beam 2.

[0105] It should be noted that generally, the suspension bridge is in the air, and after the walking mechanism 91 is hoisted to the top of the main cable 10, the walking mechanism 91 may sway under the action of wind, thereby affecting the assembly and connection work of the walking mechanism 91 and the main cable 10; therefore, in step S123, after the connection between the hook of the third pulley structure 33 and the shackle 34 is released, the gravity of the whole walking mechanism 91 is borne by the first pulley structure 31, at this time, the anti-twist device 4 can be connected between the portal frame 1 and the walking mechanism 91 to fix the walking mechanism 91 below the first pulley structure 31, thereby reducing the problem of twisting caused by the action of wind. Specifically, as shown in the figure, two anti-twist devices 4 can be used for one walking mechanism 91, and the anti-twist device 4 can be a first chain hoist, for example, the upper ends of two first chain hoists are connected to the portal frame 1, and the other ends of the two first chain hoists are connected to the front end and the rear end of the walking mechanism 91 respectively, in other words, one first chain hoist is used to fix the front end of the walking mechanism 91, and the other first chain hoist is used to fix the rear end of the walking mechanism 91, so as to effectively prevent the walking mechanism 91 from twisting. Figure 6

[0106] When the walking mechanism 91 is moved to the top of the main cable 10, the center lines of the walking mechanism 91, the main cable 10 and the hoisting distribution beam 2 may not be on the same vertical line, thereby causing inconvenience to the assembly and connection of the walking mechanism 91 and the main cable 10. The center line of the hoisting distribution beam 2 is on the same vertical line as the center line of the main cable 10, or in other words, the vertical center lines of the two coincide, and since the center line of the main cable 10 is not intuitive due to the position factor, whether the center line of the hoisting distribution beam 2 coincides with the first pin shaft hole of the walking mechanism 91 can be used as a criterion for judging whether the walking mechanism 91 is on the top of the main cable 10. Therefore, in step S124, the towing device 5 can be installed on the hook of the first pulley structure 31, for example, the towing device 5 can be a second chain hoist, one end of the second chain hoist is connected to the portal frame 1, and the other end of the second chain hoist is connected to the hook of the first pulley structure 31, so as to exert a pulling force on the hook of the first pulley structure 31 by manually operating the second chain hoist, thereby adjusting the position of the walking mechanism 91, so that the first pin shaft hole of the walking mechanism 91 is in line with the center of the hoisting distribution beam 2, thereby facilitating the subsequent assembly and connection work of the walking mechanism 91 and the main cable 10.

[0107] In an embodiment of the present application, S13, lowering the walking mechanism 91 to the main cable 10 by the first pulley structure 31 to connect the walking mechanism 91 to the main cable 10 comprises: ​

[0108] S131, lowering the walking mechanism 91 to the main cable 10 through the first pulley structure 31;

[0109] S132, when the first pin hole of the walking mechanism 91 is in the same straight line with the center line of the first pulley structure 31, the bottom end pressure block of the walking mechanism 91 is tightly embraced to the main cable 10;

[0110] S133, the walking mechanism 91 is moved to the position of the cable clamp on the main cable 10 through the transmission device 6.

[0111] It should be noted that in step S131, the walking mechanism 91 is lowered to the main cable 10 through the first pulley structure 31, so that the walking mechanism 91 is fully in contact with the main cable 10. Then, in step S132, when the first pin hole of the walking mechanism 91 is in the same straight line with the center line of the first pulley structure 31, the bottom end pressure block of the walking mechanism 91 is tightly embraced to the main cable 10 to achieve the assembly connection of the walking mechanism 91 and the main cable 10, wherein the pressure block is a component at the bottom end of the walking mechanism 91 for connecting the main cable 10.

[0112] In step S133, in some cases, when the walking mechanism 91 is in the same straight line with the center line of the first pulley structure 31, the connection position of the walking mechanism 91 and the main cable 10 may not be the set position, at this time, the transmission device 6 (see Figure 6 ) can be arranged on the main cable 10, which can be connected with the walking mechanism 91 to move the walking mechanism 91 to the position close to the cable clamp on the main cable 10, so that the set position of the main cable 10 is the cable clamp or the position adjacent to the cable clamp on the main cable 10.

[0113] The transmission device 6 can adopt the following structure, the transmission device 6 includes an upper cover plate, a lower cover plate and a plurality of bolt fasteners, the upper cover plate and the lower cover plate can be connected and fastened by the bolt fasteners, the transmission device 6 can be installed between the walking mechanism 91 and the cable clamp to transmit the downward sliding force of the walking mechanism 91 from the pressure block to the cable clamp.

[0114] In an embodiment of the present application, the pulley part 3 includes three pulley structures spaced along the width direction, and the three pulley structures are defined as the first pulley structure 31, the second pulley structure 32 and the third pulley structure 33 from the outer side to the middle position of the two pulley parts 3, respectively;

[0115] S2, the main girder segments 92 at the corresponding positions are moved to the upper side of the walking mechanism 91 through the two pulley parts 3 in a hoisting point conversion mode, so that the main girder segments 92 are connected to the walking mechanism 91, including:

[0116] S21, vertically hoisting the girder segment 92 through the third trolley structure 33 of the trolley part 3, and matching the height of the girder segment 92 with the catwalk 11 below the main cable 10;

[0117] S22, transferring the girder segment 92 from the lifting point of the third trolley structure 33 to the lifting point of the second trolley structure 32, so as to realize the lifting point conversion of the girder segment 92 between the third trolley structure 33 and the second trolley structure 32, and to transfer the girder segment 92 to the walking mechanism 91;

[0118] S23, connecting the girder segment 92 and the walking mechanism 91 of the corresponding side through the first pin shaft structure.

[0119] It should be noted that three trolley structures can be installed on each hoisting distribution beam 2; in hoisting a single girder segment 92, two trolley structures in the trolley part 3 are needed, because the lower hoisting walking mechanism 91 of the first trolley structure 31 is not unhooked, so the other two trolley structures are needed at this time, and therefore the three trolley structures are defined as the first trolley structure 31, the second trolley structure 32 and the third trolley structure 33 from the outside to the middle position of the two trolley parts 3.

[0120] In the above step S21, the third trolley structure 33 in the two trolley parts 3 can vertically hoist the girder segment 92 of the corresponding side respectively, and in the hoisting process, the height of the girder segment 92 is matched with the catwalk 11 below the main cable 10, so as to facilitate the subsequent workers to connect the hook of the second trolley structure 32 to the hook of the third trolley structure 33 through the shackle 34 while standing on the catwalk 11.

[0121] In step S22, when the height of the girder segment 92 is matched with the catwalk 11, the lifting point conversion mode can be used to transfer the walking mechanism 91 of the third trolley structure 33 to the second trolley structure 32, so as to facilitate the cooperation of the two trolley structures to transfer the girder segment 92 to the walking mechanism 91. Wherein, the lifting point can be understood as the hook below the trolley structure 33.

[0122] In step S33, the first pin shaft structure can be used to connect the girder segment 92 and the walking mechanism 91 of the corresponding side, so as to realize the installation of the girder segment 92 on the walking mechanism 91.

[0123] In an embodiment of the present application, S22, the third trolley structure 33 transfers the girder segment 92 to the second trolley structure 32, comprising:

[0124] S221, making the hook of the second trolley structure 32 share the shackle 34 with the hook of the third trolley structure 33;

[0125] S222, gradually unhooking the third pulley structure 33, gradually hooking the second pulley structure 32 to drag the main beam segment 92 to the top of the walking mechanism 91;

[0126] S223, aligning the second pin hole of the main beam segment 92 with the first pin hole of the walking mechanism 91.

[0127] It should be noted that, in combination with Figure 8 , the shackle 34 is used to connect the hooks of the second pulley structure 32 and the third pulley structure 33 together; in step S221, when the main beam segment 92 is vertically lifted by the third pulley structure 33 to match the height of the catwalk 11, the worker can connect the hook of the second pulley structure 32 with the hook of the third pulley structure 33 on the catwalk 11 through another shackle 34 (see Figure 8 ), thereby preparing for the action of moving the main beam segment 92 on the catwalk 11 to the top of the walking mechanism 91 in the subsequent steps.

[0128] In step S222, while the third pulley structure 33 is gradually unhooked, the hook of the second pulley structure 32 is gradually tightened to drag the main beam segment 92, and the speed is kept stable during the unhooking and hooking of the two pulley structures to avoid the main beam segment 92 from moving too much or from turning over; and during the lifting process, the main beam segment 92 avoids touching the catwalk 11, and is vertically lifted by the second pulley structure 32 to a certain height (see Figure 9 ) and moved to the top of the walking mechanism 91.

[0129] In step S223, in combination with Figure 10 and Figure 11 , the second pin hole of the main beam segment 92 is aligned with the first pin hole of the walking mechanism 91, thereby preparing for the subsequent assembly and connection of the main beam segment 92 and the walking mechanism 91.

[0130] Among them, the moving process of the walking mechanism 91 refers to the process of moving the main beam segment 92 to the top of the walking mechanism 91 from mainly relying on the third pulley structure 33 to lift the gravity of the main beam segment 92 in step S221 to the cooperation of the unhooking of the third pulley structure 33 and the unhooking of the second pulley structure 32.

[0131] In step S23, the first pin structure is inserted into the second pin hole of the main beam segment 92 and the first pin hole of the walking mechanism 91 to realize the pre-connection of the two.

[0132] The main girder segment 92 in the corresponding position is lifted to the upper side of the walking mechanism 91 by the two pulley parts 3, and the main girder segment 92 is connected to the walking mechanism 91, which comprises the following steps:

[0133] S24, adjusting the posture of the main girder segment 92.

[0134] For example, S24, the posture of the main girder segment 92 comprises:

[0135] S241, installing a leveling device (which can be a third chain hoist) at the third pulley structure 33 to adjust the main girder segment 92 to be flat.

[0136] S242, releasing the anti-twist device 4 of the walking mechanism 91, and fine-tuning the main girder segment 92 by using the leveling device, so that the upper and lower surfaces of the main girder segment 92 are flat, and the adjusting rod 7 is installed between the main girder segment 92 and the walking mechanism 91 (as shown in Figure 12 ), to fix the angle of the main girder segment 92, at which time the leveling device is retained, the hooks of the second pulley structure 32 and the steel wire rope are not released.

[0137] In step S3, the intermediate truss girder 93 is lifted between the two main girder segments 92 by the two pulley parts 3, and the two ends of the intermediate truss girder 93 are connected to the main girder segments 92, which comprises the following steps:

[0138] Step S31, in combination with Figure 13 , the intermediate truss girder 93 is lifted vertically by the third pulley structure 33 in the two pulley parts 3; during the lifting process, the deflection angle of the intermediate truss girder 93 is controlled to be not more than a set angle, for example 1 degree, that is, the upstream and downstream height difference is not more than a set height difference, for example 50 cm.

[0139] Step S32, in combination with Figure 14 , when the intermediate truss girder 93 is lifted into position, the two ends of the intermediate truss girder 93 are connected to the main girder segments 92 on the corresponding side by two groups of second pin shaft structures.

[0140] In step S32, the intermediate truss girder 93 is lifted into position, the end of the intermediate truss girder 93 is aligned with the shaft hole of the main girder segment 92 by the chamfering device, at which time the end of the intermediate truss girder 93 can be connected to the main girder segment 92 on the corresponding side by installing multiple second pin shaft structures; then the steel wire rope of the third pulley structure 33, the second chain hoist and the second pulley structure 32 is not under stress by releasing the hooks, and after the structure and the cable clamp on the main cable 10 are static for a few minutes, the steel wire rope of the third pulley structure 33 is removed, and the main girder segment 92, the third chain hoist and the lifting steel wire rope are retained.

[0141] In one embodiment of the present application, S4, the process of hoisting each of the cable hoist 94 to the corresponding traveling mechanism 91 respectively, and connecting the cable hoist 94 to the traveling mechanism 91, comprises:

[0142] S41, hoisting two cable hoists 94 to the top of the traveling mechanism 91 respectively by the tower crane 8;

[0143] S42, connecting the cable hoist 94 to the traveling mechanism 91 by bolt fasteners.

[0144] It should be noted that in step S41, as shown in FIG. Figure 15 A cable hoist 94 can be hoisted to the traveling mechanism 91 on the upstream side by a tower crane 8, such as a T600 tower crane 8; another cable hoist 94 can be hoisted to the traveling mechanism 91 on the downstream side by another tower crane 8, such as a TC7527 tower crane 8.

[0145] In step S42, the cable hoist 94 can be fixedly connected to the traveling mechanism 91 at the corresponding position by bolt fasteners, so as to realize the fixed installation of the cable hoist 94 on the traveling mechanism 91.

[0146] In one embodiment of the present application, the cable crane further comprises two wire reels 95 and two guide frames 96;

[0147] The hoisting method of the cable crane further comprises:

[0148] S5, cooperating with the trolley part 3 by the tower crane 8 to hoist two wire reels 95 to the intermediate truss beam 93 respectively;

[0149] S6, cooperating with the trolley part 3 by the tower crane 8 to hoist two guide frames 96 to the main beam section 92 respectively.

[0150] It should be noted that in step S5, two wire reels 95 are hoisted to the intermediate truss beam 93 respectively by the tower crane 8 cooperating with the trolley part 3, and the wire reel 95 can be assembled with the cable hoist 94. One tower crane 8 and one trolley part 3 can hoist one wire reel 95, and another tower crane 8 and another trolley part 3 can hoist another wire reel 95.

[0151] In step S6, two guide frames 96 can be hoisted to the main beam section 92 respectively by the tower crane 8 cooperating with the trolley part 3.

[0152] One tower crane 8 and one trolley part 3 can hoist one guide frame 96, and another tower crane 8 and another trolley part 3 can hoist another guide frame 96.

[0153] In one embodiment of the present application, the trolley part 3 comprises three trolley structures spaced along the width direction, which are defined as the first trolley structure 31, the second trolley structure 32 and the third trolley structure 33 from the outside to the middle position of the two trolley parts 3 respectively;

[0154] S5, the cooperation of the tower crane 8 with the trolley part 3 to hoist the two wire reels 95 to the middle truss beam 93 respectively comprises:

[0155] S51, disassembling two horizontal rod connection systems 931 in the middle truss beam 93;

[0156] S52, hoisting the two wire reels 95 to the top of the middle truss beam 93 respectively by the tower crane 8;

[0157] S53, the second trolley structure 32 cooperates with the third trolley structure 33 to move to the inside of the middle truss beam 93 by the lifting point conversion mode, and installs the wire reel 95 inside the middle truss beam 93.

[0158] It should be noted that in the above step S51, in combination with Figure 13 As shown, disassembling two horizontal rod connection systems 931 in the middle truss beam 93, so as to avoid the interference of the horizontal rod connection system 931 with the installation of the wire reel 95 inside the middle truss beam 93.

[0159] In the above step S52, in combination with Figure 16 As shown, the tower crane 8 can be used to hoist the wire reel 95 to the top of the middle truss beam 93, and at this time the wire reel 95 on the middle truss beam 93 will not interfere with the space of the portal frame 1.

[0160] In the above step S53, in combination with Figure 17 And Figure 18 As shown, the wire reel 95 can be dragged to the third trolley structure 33 by the third trolley structure 33, and then the second trolley structure 32 and the third trolley structure 33 can be cooperated, that is, they share a shack first, and then the action of loosening the hook and collecting the hook is alternated, so as to move the wire reel 95 inside the middle truss beam 93, and finally install the wire reel 95 inside the middle truss beam 93.

[0161] Among them, for the hoisting of the guide frame 96, the hoisting steps of the above wire reel 95 can be used, but the guide frame 96 can be installed on the main beam segment 92 by bolt fasteners; wherein the number of guide frames 96 can be two, that is, each guide frame 96 is installed on the corresponding side of the main beam segment 92.

[0162] In combination withFigure 20 As shown in the drawings, another embodiment of the present application provides a hoisting system of a cable crane, which can be hoisted by the hoisting method of the cable crane as described above, and comprises a portal 1, two hoisting distribution beams 2 and two trolley parts 3, the two ends of the top of the portal 1 along the width direction are respectively provided with the hoisting distribution beams 2, and each of the hoisting distribution beams 2 is provided with the trolley part 3; the trolley part 3 comprises a plurality of trolley structures, and the plurality of trolley structures are spaced apart and arranged on the hoisting distribution beam 2 along the width direction.

[0163] It should be noted that, in the above description, Figure 20 the width direction can be understood as the direction perpendicular to the length direction of the suspension bridge, the two hoisting distribution beams 2 can be spaced apart and arranged on the portal 1 along the width direction, each of the hoisting distribution beams 2 can be provided with the trolley part 3, each of the trolley parts 3 can comprise a plurality of, for example, three trolley structures, and the plurality of trolley structures are spaced apart and arranged on the hoisting distribution beam 2 along the width direction. In the coordinate system, the width direction is parallel to the X-axis direction, the main cable 10 can be arranged below the first trolley structure 31 which is the outermost trolley structure in each of the trolley parts 3, and the catwalk 11 is arranged below the main cable 10. Figure 20

[0164] Although the present application is disclosed as above, the protection scope of the present application is not limited to this. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present application, and these changes and modifications shall fall within the protection scope of the present application.​

Claims

1. A method of hoisting for a cable hoist, suitable for a hoisting system, characterized in that, The hoisting system comprises a portal (1), two hoisting distribution beams (2) and two trolley parts (3), the top of the portal (1) is respectively provided with the hoisting distribution beam (2) at both ends in the width direction, and one trolley part (3) is respectively arranged on each hoisting distribution beam (2); the trolley part (3) comprises a plurality of trolley structures, and the plurality of trolley structures are arranged on the hoisting distribution beam (2) in the width direction; the cable crane comprises a middle truss beam (93), two traveling mechanisms (91), two main beam segments (92) and two cable winches (94); the direction from the outside of the two trolley parts (3) to the middle position is defined as the first trolley structure (31), the second trolley structure (32) and the third trolley structure (33) respectively; The hoisting method of the cable crane comprises the following steps: The two traveling mechanisms (91) are respectively moved to the upper side of the main cable (10) by the two trolley parts (3) in the point switching mode, and the two traveling mechanisms (91) are connected to the set position of the main cable (10), comprising the following steps: the traveling mechanism (91) is vertically lifted by the third trolley structure (33) of one trolley part (3), and the bottom of the traveling mechanism (91) is higher than the top of the main cable (10), at this time, the traveling mechanism (91) is in the region between the two main cables (10); the traveling mechanism (91) is transferred from the lifting point of the third trolley structure (33) to the lifting point of the first trolley structure (31), the hook of the first trolley structure (31) and the hook of the third trolley structure (33) share the shackle (34), so as to realize the point switching of the traveling mechanism (91) between the third trolley structure (33) and the first trolley structure (31), so as to move the traveling mechanism (91) to the main cable (10); when the first trolley structure (31) is completely stressed, the connection between the hook of the third trolley structure (33) and the shackle (34) is released; the first trolley structure (31) lowers the traveling mechanism (91) to the main cable (10), so as to connect the traveling mechanism (91) to the set position of the main cable (10); The two main beam segments (92) are respectively moved to the upper side of the corresponding traveling mechanism (91) by the two trolley parts (3) in the point switching mode, and the two main beam segments (92) are respectively connected to the corresponding traveling mechanism (91); The middle truss beam (93) is lifted to the position between the two main beam segments (92) by the cooperation of the two trolley parts (3), and the two ends of the middle truss beam (93) are respectively connected to the two main beam segments (92); The two cable winches (94) are respectively lifted to the corresponding traveling mechanism (91), and the two cable winches (94) are respectively connected to the corresponding traveling mechanism (91).

2. The hoisting method of a cable hoist according to claim 1, characterized in that, The third trolley structure (33) transfers the walking mechanism (91) to the first trolley structure (31) includes: The third trolley structure (33) is gradually unhooked, the first trolley structure (31) is gradually hooked and dragged, and the walking mechanism (91) is shifted to the top of the main cable (10).

3. The hoisting method of a cable hoist according to claim 2, characterized in that, The third trolley structure (33) transfers the walking mechanism (91) to the first trolley structure (31) further includes: After the connection between the third trolley structure (33) and the shackle (34) is released, a twist prevention device (4) is connected between the portal frame (1) and the walking mechanism (91); A dragging device (5) is installed on the hook of the first trolley structure (31) to adjust the first pin hole of the walking mechanism (91) to be in line with the center of the lifting distribution beam (2).

4. The hoisting method of a cable hoist according to claim 1, characterized in that, The trolley part (3) includes three trolley structures spaced along the width direction, and the three trolley structures are defined as the first trolley structure (31), the second trolley structure (32) and the third trolley structure (33) from the outside to the middle position of the two trolley parts (3); The main beam segment (92) at the corresponding position is shifted to the top of the walking mechanism (91) by the two trolley parts (3) in a lifting point conversion manner, and the main beam segment (92) is connected to the walking mechanism (91) includes: The main beam segment (92) is vertically lifted by the third trolley structure (33) of one trolley part (3), and the height of the main beam segment (92) is matched with the catwalk (11) below the main cable (10); The main beam segment (92) is transferred from the lifting point of the third trolley structure (33) to the lifting point of the second trolley structure (32) to realize the lifting point conversion of the main beam segment (92) between the third trolley structure (33) and the second trolley structure (32), so as to shift the main beam segment (92) to the walking mechanism (91); The main beam segment (92) and the walking mechanism (91) on the corresponding side are connected by a first pin structure.

5. The hoisting method of a cable hoist according to claim 4, characterized in that, The third trolley structure (33) transfers the main beam segment (92) to the second trolley structure (32) includes: The hook of the second trolley structure (32) and the hook of the third trolley structure (33) share a shackle (34); The third trolley structure (33) is gradually unhooked, the second trolley structure (32) is gradually hooked and dragged, and the main beam segment (92) is shifted to the top of the walking mechanism (91); The second pin hole of the main beam segment (92) is aligned with the first pin hole of the walking mechanism (91).

6. The hoisting method of a cable hoist according to claim 1, characterized in that, The cable hoist (94) is lifted to the walking mechanism (91) to connect the cable hoist (94) to the walking mechanism (91) includes: Two cable hoists (94) are respectively lifted to the top of the walking mechanism (91) by a tower crane (8); The cable hoist (94) is connected to the traveling mechanism (91) by bolt fasteners.

7. The hoisting method of a cable hoist according to claim 1, characterized in that, The cable crane further comprises two wire reels (95) and two guide frames (96); The hoisting method of the cable crane further comprises: The two wire reels (95) are hoisted to the intermediate truss beam (93) by the tower crane (8) in cooperation with the trolley part (3); The two guide frames (96) are hoisted to the main beam section (92) by the tower crane (8) in cooperation with the trolley part (3).

8. The hoisting method of a cable hoist according to claim 7, characterized in that, The trolley part (3) comprises three trolley structures spaced along the width direction, which are defined as a first trolley structure (31), a second trolley structure (32) and a third trolley structure (33) from the outside to the middle position of the two trolley parts (3); The hoisting of the two wire reels (95) to the intermediate truss beam (93) by the tower crane (8) in cooperation with the trolley part (3) comprises: Two cross rod connection systems (931) in the intermediate truss beam (93) are removed; The two wire reels (95) are hoisted to the top of the intermediate truss beam (93) by the tower crane (8); The second trolley structure (32) and the third trolley structure (33) cooperate to move the wire reel (95) to the inside of the intermediate truss beam (93) by the lifting point conversion mode, and the wire reel (95) is installed in the inside of the intermediate truss beam (93).

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