Method for installing a hoisting device and hoisting device

Abstract

The present disclosure relates to a kind of hoisting equipment installation method and hoisting equipment, hoisting equipment installation method includes: the arm tail of main arm (1) is connected with rotating platform (21), and main arm luffing mechanism (22) is installed in the rotating platform;When the main arm (1) is located at first working position, the arm tail of first tower arm support (31) and the arm tail of second tower arm support (32) are connected with the arm head of the main arm (1) respectively, and first luffing device (5) is installed between the arm head of the main arm (1), the arm head of the first tower arm support (31) and the arm head of the second tower arm support (32);The main arm (1) is luffed by the main arm luffing mechanism (22);When the main arm (1) is located at second working position, the arm tail of tower arm (4) is connected with the arm head of the main arm (1);Wherein, in the luffing plane of the main arm (1), the included angle between the main arm (1) and ground between the second working position is greater than the included angle between the main arm (1) and ground between the first working position.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the field of hoisting equipment, and in particular to a hoisting equipment installation method and hoisting equipment. BACKGROUND

[0002] A crawler crane is a truss boom structure crane with a crawler chassis, which can perform material hoisting and other operations. The crawler crane cannot travel on the highway, and long-distance transfer requires disassembly and transportation. After arriving at the construction site, it needs to be reassembled.

[0003] The crawler crane in the related art adopts a truss boom structure, which needs to be assembled flatly one section at a time during assembly. After assembly, the boom is pulled up by using the luffing system itself, so a large assembly site is required. The longer the boom system, the larger the assembly site required, and the adaptability to narrow construction sites is poor. SUMMARY

[0004] Therefore, the present disclosure provides a hoisting equipment installation method and hoisting equipment, which can help to reduce the space requirement of the boom disassembly and assembly operation.

[0005] In one aspect of the present disclosure, a hoisting equipment installation method is provided, comprising:

[0006] connecting the tail of the main arm to the turntable, and installing a main arm luffing mechanism on the turntable;

[0007] when the main arm is located at the first working position, connecting the tail of the first tower arm support and the tail of the second tower arm support to the head of the main arm respectively, and installing a first luffing device between the main arm, the head of the first tower arm support and the head of the second tower arm support;

[0008] luffing the main arm by the main arm luffing mechanism;

[0009] when the main arm is located at the second working position, connecting the tail of the tower arm to the head of the main arm;

[0010] wherein, in the luffing plane of the main arm, the included angle between the main arm at the second working position and the ground is greater than the included angle between the main arm at the first working position and the ground.

[0011] In some embodiments, during the process of luffing the main arm to the second working position by the main arm luffing mechanism or after luffing to the second working position, further comprising:

[0012] adjusting the included angle between the first tower arm support and the second tower arm support and the main arm in the luffing plane of the main arm by the first luffing device.

[0013] In some embodiments, the first tower arm support and the second tower arm support are positioned between the main arm and the tower arm in the luffing plane of the main arm, and the first tower arm support is positioned between the main arm and the second tower arm support.

[0014] In some embodiments, the operation of connecting the arm tail of the tower arm to the arm head of the main arm when the main arm is in the second working position specifically comprises:

[0015] sequentially assembling the arm segments of the tower arm to form the complete tower arm;

[0016] hoisting the assembled tower arm and connecting the arm tail of the tower arm to the arm head of the main arm in the second working position.

[0017] In some embodiments, the operation of connecting the arm tail of the tower arm to the arm head of the main arm when the main arm is in the second working position specifically comprises:

[0018] installing a second luffing device at the arm head of the second tower arm support;

[0019] installing a first puller between the second luffing device and the arm head of the tower arm;

[0020] adjusting the included angle between the tower arm and the second tower arm support in the luffing plane by the second luffing device.

[0021] In some embodiments, the step of sequentially assembling the arm segments of the tower arm to form the complete tower arm comprises:

[0022] suspending part of the arm segments of the tower arm by the second luffing device so as to sequentially assemble other arm segments of the tower arm.

[0023] In some embodiments, the position of at least one of the main arm, the first tower arm support and the second tower arm support in the luffing plane of the main arm is adjusted during the assembling process.

[0024] In some embodiments, the operation of connecting the arm tail of the tower arm to the arm head of the main arm when the main arm is in the second working position specifically comprises:

[0025] installing a second luffing device at the arm head of the second tower arm support;

[0026] In some embodiments, the operation of connecting the arm tail of the tower arm to the arm head of the main arm when the main arm is in the second working position specifically comprises:

[0027] suspending and lifting the arm tail of the tower arm by the second luffing device so as to connect the arm tail of the tower arm to the arm head of the main arm.

[0028] In some embodiments, the operation of installing the second luffing device at the arm head of the second tower arm support specifically comprises:

[0029] installing a first pulley at the arm head of the second tower arm support and winding a second luffing wire on the first pulley, and installing a second pulley by the second luffing wire to form a luffing pulley block.

[0030] In some embodiments, the operation of suspending the part of the tower arm by the second luffing device specifically comprises:

[0031] By adjusting the second luffing wire, the second pulley is lowered so as to suspend the part of the tower arm by the second pulley.

[0032] In another aspect of the present disclosure, a crane apparatus to which any of the crane installation methods described above is applied is provided, comprising:

[0033] A turntable;

[0034] A main arm configured to be connected to the turntable;

[0035] A bracket assembly comprising a first tower arm bracket and a second tower arm bracket, an arm tail of the first tower arm bracket and an arm tail of the second tower arm bracket are respectively detachably connected to an arm head of the main arm;

[0036] A tower arm, an arm tail of the tower arm is detachably connected to the arm head of the main arm;

[0037] Wherein, the connection positions of the second tower arm bracket and the tower arm to the arm head of the main arm do not coincide.

[0038] In some embodiments, the arm head of the main arm comprises:

[0039] A mounting rack, the first tower arm bracket and the second tower arm bracket are respectively connected to the mounting rack; and

[0040] A connecting device connected to the mounting rack, the arm tail of the tower arm is connected to the connecting device.

[0041] In some embodiments, the connecting device is triangular, a first side of the connecting device is connected to the mounting rack, and a first vertex of the connecting device opposite to the first side is connected to the arm tail of the tower arm.

[0042] In some embodiments, the mounting rack is quadrilateral, having a first connection position, a second connection position and a third connection position, the first connection position and the second connection position are respectively located at two adjacent vertices of the quadrilateral, the third connection position is located at a side adjacent to the second connection position, and the second connection position is located between the first connection position and the third connection position.

[0043] Wherein, the first tower arm bracket is connected to the first connection position, the second tower arm bracket is connected to the second connection position, and the connecting device is connected to the third connection position.

[0044] In some embodiments, further comprising:

[0045] A first luffing device connected between the main arm, the first tower arm bracket and the second tower arm bracket, configured to adjust the included angles of the first tower arm bracket and the second tower arm bracket with the main arm in a luffing plane of the main arm, respectively.

[0046] In some embodiments, the first amplitude changing device comprises:

[0047] The first wire rope is capable of adjusting the included angle between the main arm and the first tower arm support and / or the included angle between the main arm and the second tower arm support.

[0048] In some embodiments, further comprising:

[0049] The second amplitude changing device has one end connected to the head of the second tower arm support, and the other end is detachably connected to the head of the tower arm through the first pulling member.

[0050] In some embodiments, the second amplitude changing device comprises:

[0051] The second amplitude changing pulley block comprises a first pulley and a second pulley closer to the ground relative to the first pulley;

[0052] The second amplitude changing wire rope is wound between the first pulley and the second pulley so as to adjust the distance between the first pulley and the second pulley.

[0053] In some embodiments, the first tower arm support and the second tower arm support are located between the main arm and the tower arm, and the first tower arm support is located between the main arm and the second tower arm support.

[0054] In some embodiments, further comprising:

[0055] The chassis, on which the turntable is rotatably arranged;

[0056] The main arm amplitude changing mechanism is connected to the turntable and is configured to change the amplitude of the main arm.

[0057] Therefore, according to the embodiments of the present disclosure, the tower arm does not need to be assembled with the main arm at the same time, and the main arm, the main arm amplitude changing mechanism, the first tower arm support and the second tower arm support are installed first, the main arm is changed in amplitude by the main arm amplitude changing mechanism, and after the main arm is raised to the second working position to leave enough installation space for the tower arm, the tower arm is installed with the main arm, and the tower arm does not need to be installed with the main arm one section after another, thereby greatly reducing the space requirement of the hoisting equipment for the installation site, and making the jib system have good adaptability to the disassembly and assembly sites in different application scenarios. BRIEF DESCRIPTION OF DRAWINGS

[0058] The accompanying drawings, which form a part of the specification, illustrate embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0059] The present disclosure can be more clearly understood and appreciated from the following detailed description, taken in conjunction with the following drawings, in which:

[0060] Figure 1is a flowchart of some embodiments of a method of installing a hoisting apparatus according to the present disclosure;

[0061] Figure 2 is a structural schematic of some embodiments of a hoisting apparatus according to the present disclosure;

[0062] Figure 3 is a partial structural schematic of some embodiments of a hoisting apparatus according to the present disclosure;

[0063] Figure 4 is a structural schematic of some embodiments of a method of installing a hoisting apparatus according to the present disclosure installing a main boom;

[0064] Figure 5 is a structural schematic of some embodiments of a method of installing a hoisting apparatus according to the present disclosure adjusting an angle of a main boom;

[0065] Figure 6 is a structural schematic of some embodiments of a method of installing a hoisting apparatus according to the present disclosure adjusting a first luffing device;

[0066] Figure 7A is a structural schematic of some embodiments of a method of installing a hoisting apparatus according to the present disclosure assembling a tower boom;

[0067] Figure 7B is a structural schematic of some embodiments of a method of installing a hoisting apparatus according to the present disclosure assembling a tower boom;

[0068] Figure 7C is a structural schematic of some embodiments of a method of installing a hoisting apparatus according to the present disclosure assembling a tower boom;

[0069] Figure 8A is a structural schematic of some embodiments of a method of installing a hoisting apparatus according to the present disclosure adjusting a connection position of a first luffing device to a tower boom;

[0070] Figure 8B is a structural schematic of some embodiments of a method of installing a hoisting apparatus according to the present disclosure hoisting a tower boom;

[0071] Figure 8C is a structural schematic of some embodiments of a method of installing a hoisting apparatus according to the present disclosure hoisting a tower boom;

[0072] Figure 9A is a structural schematic of some embodiments of a method of installing a hoisting apparatus according to the present disclosure installing a first pulling member;

[0073] Figure 9B is a structural schematic of some embodiments of a method of installing a hoisting apparatus according to the present disclosure straightening a first pulling member;

[0074] Figure 9Cis a structural schematic diagram of adjusting a tower arm angle according to some embodiments of the crane installation method of the present disclosure.

[0075] It should be understood that the dimensions of the various portions shown in the drawings are not drawn to scale. In addition, the same or similar reference numerals are used to represent the same or similar components. DETAILED DESCRIPTION

[0076] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative in nature and is in no way intended to limit the disclosure, its application or uses. The disclosure can be implemented in numerous different forms, not just the embodiments described herein. These embodiments are provided so that this disclosure will be thorough and complete, and fully convey the scope of the disclosure to those skilled in the art. It should be noted that the relative arrangement of components and steps set forth in these embodiments, the components of the materials, numerical expressions, and numerical values are to be interpreted as merely exemplary, unless specifically stated otherwise.

[0077] The terms "first", "second", and similar terms used in the present disclosure do not denote any order, quantity, or importance, but are used to distinguish different parts. The terms "comprise", "include" or "contain" and similar terms mean that the elements before the term encompass the elements listed after the term, and do not exclude the possibility of also encompassing other elements. "Up", "down", "left", "right", and the like are used only to indicate relative positional relationships, and when the absolute position of the described object changes, the relative positional relationship can also change accordingly.

[0078] In the present disclosure, when it is described that a specific device is located between a first device and a second device, there can be an intervening device between the specific device and the first device or the second device, or there can be no intervening device. When it is described that a specific device is connected to other devices, the specific device can be directly connected to the other devices without an intervening device, or can not be directly connected to the other devices with an intervening device.

[0079] All terms used in the present disclosure, including technical terms or scientific terms, have the same meanings as those understood by a person of ordinary skill in the art to which the present disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in a generally used dictionary should be interpreted to have meanings consistent with the meanings in the context of the relevant technology, and should not be interpreted in an idealized or overly formalized sense, unless otherwise explicitly defined herein.

[0080] Techniques, methods, and devices known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered as part of the specification where appropriate.

[0081] The crawler crane cannot run on the highway, and long-distance transfer needs to be disassembled and transported. After arriving at the construction site, it needs to be reassembled. Due to the heavy weight of the parts, auxiliary cranes are needed to assist in lifting during the assembly process. The larger the tonnage of the assembled crawler crane, the larger the tonnage of the auxiliary crane required, and the higher the cost generated. The crawler crane adopts a truss type boom structure, and the boom sections of the main arm need to be assembled one by one during the assembly process. The tower arm of the tower type sub-arm also needs to be opened and assembled one by one, so a large assembly site is required. The longer the boom system, the larger the assembly site required, and the poorer the adaptability to narrow construction sites.

[0082] The related art usually designs a tower type sub-arm (referred to as a tower arm), a tower arm rear support (referred to as a rear support), and a tower arm arranged at different hinge points on the head of the main arm. The tower arm front support (referred to as the front support) is arranged at the lower part of the tower arm bottom section arm. The front and rear supports of the small tonnage tower arm working condition can also be placed at the lower part of the tower arm bottom section arm. The tower arm and the front support are connected through a tower arm front pull plate (referred to as the front pull plate), and the three form a triangle structure with a fixed angle. The front and rear supports are wound with a tower arm luffing wire rope, and the angle of the tower arm is changed by winding and unwinding the tower arm luffing wire rope on the tower arm luffing mechanism. The change of the angle of the main arm is realized by winding and unwinding the main luffing system wire rope.

[0083] When the tower arm working condition is assembled, all the arm sections are sequentially assembled one by one, which requires a large assembly site and poor adaptability to narrow construction sites. The arm sections of the main arm and the tower arm need to be assisted by auxiliary cranes during the assembly process. The auxiliary crane station needs a certain space, and the use of the auxiliary crane will increase the cost.

[0084] Therefore, in one aspect of the embodiments of the present disclosure, a hoisting equipment installation method is provided. Figure 1 is a flowchart of some embodiments of the hoisting equipment installation method according to the present disclosure, Figure 2 is a structural schematic diagram of some embodiments of the hoisting equipment according to the present disclosure, Figure 3 is a partial structural schematic diagram of some embodiments of the hoisting equipment according to the present disclosure, with reference to Figures 1-3 The hoisting equipment installation method includes steps S1 to S4.

[0085] In step S1, the arm tail of the main arm 1 is connected with the rotary table 21, and the main arm luffing mechanism 22 is installed on the rotary table 21, so as to provide installation space for the tower arm 4 by subsequently luffing the main arm 1.

[0086] In step S2, when the main arm 1 is in the first working position, the arm tail of the first tower arm support 31 and the arm tail of the second tower arm support 32 are connected with the arm head of the main arm 1 respectively, and the first luffing device 5 is installed between the main arm 1, the arm head of the first tower arm support 31 and the arm head of the second tower arm support 32.

[0087] In step S3, the main arm 1 is luffed by the main arm luffing mechanism 22, so that the main arm 1 is gradually raised and the included angle between the main arm 1 and the ground is increased.

[0088] In step S4, when the main arm 1 is in the second working position, the arm tail of the tower arm 4 is connected with the arm head of the main arm 1, so that the installation of the tower arm 4 is completed.

[0089] In the luffing plane of the main arm 1, the included angle between the main arm 1 and the ground in the second working position is greater than the included angle between the main arm 1 and the ground in the first working position, which includes but is not limited to the state of being parallel to the ground or having a small included angle with the ground, and the main arm 1 can be assembled in sections at this time. The second working position can be multiple, and the main arm 1 in the second working position includes but is not limited to an included angle of 70-90° with the ground, which can provide sufficient space for the assembly and installation of the tower arm 4.

[0090] In this embodiment, the tower arm 4 and the second tower arm support 32 do not need to be assembled with the main arm 1 at the same time. The main arm 1, the main arm luffing mechanism 22, the first tower arm support 31 and the second tower arm support 32 are installed first, the main arm 1 is luffed by the main arm luffing mechanism 22, and when the main arm 1 is raised to the second working position, sufficient installation space is provided for the tower arm 4, and then the tower arm 4 is installed with the main arm 1. The tower arm 4 does not need to be installed with the main arm 1 in sections, so that the space requirement of the hoisting equipment for the installation site can be greatly reduced, and the jib system has good adaptability to the disassembly and assembly sites in different application scenarios.

[0091] Figure 4 is a structural schematic diagram of installing the main arm according to some embodiments of the hoisting equipment installation method of the present disclosure, Figure 5 is a structural schematic diagram of adjusting the angle of the main arm according to some embodiments of the hoisting equipment installation method of the present disclosure, Figure 6 is a structural schematic diagram of adjusting the first luffing device according to some embodiments of the hoisting equipment installation method of the present disclosure, referring to Figures 2-6 , Figure 4 In some embodiments, in the process of luffing the main arm 1 to the second working position by the main arm luffing mechanism 22 or after luffing to the second working position, the hoisting equipment installation method further includes adjusting the included angle between the first tower arm support 31 and the second tower arm support 32 and the main arm 1 in the luffing plane of the main arm 1 by the first luffing device 5.

[0092] In the embodiment, the first luffing device 5 can be used to adjust the included angle between the main arm 1 and the first tower arm support 31 and the second tower arm support 32 during the luffing of the main arm 1 to the second working position or after the luffing of the main arm 1 to the second working position, so as to improve the hoisting capacity of the main arm 1 and the first tower arm support 31 and the second tower arm support 32 and facilitate the subsequent hoisting of the tower arm 4.

[0093] Reference is made to Figure 2 In some embodiments, the first tower arm support 31 and the second tower arm support 32 are located between the main arm 1 and the tower arm 4 in the luffing plane of the main arm 1, and the first tower arm support 31 is located between the main arm 1 and the second tower arm support 32. In the embodiment, the first tower arm support 31 and the second tower arm support 32 of the hoisting device are located between the main arm 1 and the tower arm 4, and the first tower arm support 31 is located close to one side of the main arm 1.

[0094] Figure 7A FIG. 1 is a structural schematic diagram of assembling a tower arm according to some embodiments of the hoisting device installation method of the present disclosure, Figure 7B FIG. 2 is a structural schematic diagram of assembling a tower arm according to other embodiments of the hoisting device installation method of the present disclosure, Figure 7C FIG. 3 is a structural schematic diagram of assembling a tower arm according to still other embodiments of the hoisting device installation method of the present disclosure, reference is made to Figures 7A-7C In some embodiments, when the main arm 1 is located at the second working position, the operation of connecting the arm tail of the tower arm 4 with the arm head of the main arm 1 specifically includes: assembling the arm sections of the tower arm 4 in sequence to form the complete tower arm 4; and hoisting the assembled tower arm 4 and connecting the arm tail of the tower arm 4 with the arm head of the main arm 1 located at the second working position.

[0095] In the embodiment, the arm head of the second tower arm support 32 can hoist the arm sections of the tower arm 4 through the auxiliary hoisting device or the luffing device of the hoisting device itself, and after the assembly of all the arm sections is completed, the tower arm 4 is hoisted to be connected with the arm head of the main arm 1. The space occupied by the disassembly process is reduced from the sum of the lengths of the main arm 1 and the tower arm 4 in the related art to the length of the longer one of the main arm 1 and the tower arm 4, so that the disassembly can be flexibly performed in a narrow space and the operation demand of large lifting height can be met.

[0096] Figure 8A FIG. 5 is a structural schematic diagram of adjusting the connection position of the first luffing device with the tower arm according to some embodiments of the hoisting device installation method of the present disclosure, Figure 8B FIG. 6 is a structural schematic diagram of hoisting a tower arm according to some embodiments of the hoisting device installation method of the present disclosure, Figure 8C FIG. 7 is a structural schematic diagram of hoisting a tower arm according to other embodiments of the hoisting device installation method of the present disclosure, Figure 9A FIG. 8 is a structural schematic diagram of installing the first pulling member according to some embodiments of the hoisting device installation method of the present disclosure, Figure 9BThis is a structural schematic diagram of the straightening first tensioning member according to some embodiments of the lifting equipment installation method disclosed herein. Figure 9C This is a schematic diagram of the structure for adjusting the tower boom angle according to some embodiments of the lifting equipment installation method disclosed herein, with reference to... Figures 8A-9C In some embodiments, the lifting equipment installation method further includes: installing a second luffing device 6 at the boom head of the second tower boom support 32; installing a first traction member 63 between the second luffing device 6 and the boom head of the tower boom 4; and adjusting the angle between the tower boom 4 and the second tower boom support 32 in the luffing plane by means of the second luffing device 6.

[0097] In this embodiment, a second luffing device 6 and a first traction member 63 are installed between the second tower arm support 32 and the boom head of the tower arm 4. After the tower arm 4 is installed, the luffing of the tower arm 4 can be achieved through the second luffing device 6 and the first traction member 63 so as to switch the tower arm 4 to the working state.

[0098] refer to Figures 7A-7C In some embodiments, the step of sequentially assembling the boom sections of the tower arm 4 to form a complete tower arm 4 includes suspending some boom sections of the tower arm 4 via the second luffing device 6 in order to sequentially assemble the other boom sections of the tower arm 4.

[0099] Figure 7A When the main boom 1 is in the second working position, when assembling the boom 4, some boom sections of the boom 4 can be suspended at a position close to the ground through the second luffing device 6. Then, the remaining boom sections are assembled based on the suspended boom sections. During the assembly process, the connection position between the second luffing device 6 and the boom 4 can be adjusted accordingly to improve the safety and stability of the assembly.

[0100] In this embodiment, a second luffing device 6 can be installed at the boom head of the second tower boom support 32, so that the second luffing device 6 can be used to hang and lift the tower boom 4 during disassembly and assembly. This eliminates the cost of crane-assisted installation and the space required for auxiliary crane positions in related technologies, making the disassembly and assembly process of the boom system simpler and more efficient.

[0101] refer to Figures 7A-7C In some embodiments, during the assembly process, the position of at least one of the main boom 1, the first tower boom support 31, and the second tower boom support 32 within the luffing plane of the main boom 1 is adjusted.

[0102] In this embodiment, during the assembly of the tower arm 4, the connection position between the second luffing device 6 and the tower arm 4 on the tower arm 4 can be continuously adjusted, as well as the position of at least one of the main boom 1, the first tower arm support 31 and the second tower arm support 32 in the luffing plane of the main boom 1, so as to ensure the load-bearing capacity of the main boom 1, the first tower arm support 31 and the second tower arm support 32 on the tower arm 44 during the assembly process.

[0103] refer toFigures 8A-8C In some embodiments, the method further comprises installing the second luffing device 6 at the arm head of the second tower arm support 32. The operation of hoisting the assembled tower arm 4 and connecting the arm tail of the tower arm 4 with the arm head of the main arm 1 located at the second working position specifically comprises: hoisting and lifting the arm tail of the tower arm 4 through the second luffing device 6 so as to connect the arm tail of the tower arm 4 with the arm head of the main arm 1.

[0104] In the embodiment, after each arm section of the tower arm 4 is assembled, the second luffing device 6 is connected with the side of the tower arm 4 close to the tail, and the tail of the tower arm 4 is hoisted to the arm head of the main arm 1 through the second luffing device 6 to realize the connection of the tower arm 4 with the arm head of the main arm 1. The tower arm 4 can be self-disassembled during hoisting through the mast support of the hoisting device, which saves the assistance of the crane and eliminates the need to consider the stationing of the crane, thereby optimizing the installation process and saving the disassembly cost.

[0105] Reference Figure 4 In some embodiments, the operation of installing the second luffing device 6 at the arm head of the second tower arm support 32 specifically comprises: installing the first pulley 611 at the arm head of the second tower arm support 32, winding the second luffing wire rope 62 on the first pulley 611, and installing the second pulley 612 through the second luffing wire rope 62 to form the luffing pulley set 61. In the embodiment, the second luffing device 6 comprises the second luffing pulley set 61 and the second luffing wire rope 62. The second luffing pulley set 61 comprises the first pulley 611 and the second pulley 612 closer to the ground relative to the first pulley 611, and the second luffing wire rope 62 is wound between the first pulley 611 and the second pulley 612 to adjust the distance between the first pulley 611 and the second pulley 612.

[0106] Reference Figures 5-7C In some embodiments, the operation of hoisting the part of the arm sections of the tower arm 4 through the second luffing device 6 specifically comprises: lowering the second pulley 612 through the adjustment of the second luffing wire rope 62 to hoist the part of the arm sections of the tower arm 4 through the second pulley 612.

[0107] In the embodiment, the distance between the first pulley 611 and the second pulley 612 can be adjusted through the winding and unwinding of the second luffing wire rope 62, so that the second pulley 612 is lowered to a position close to the ground during the assembly operation of the tower arm 4, thereby improving the convenience and safety of the assembly operation of the tower arm 4 and realizing efficient and reliable assembly.

[0108] Reference Figures 1-9C The installation process of the hoisting device is as follows:

[0109] Reference Figure 4, the main arm 1, the first tower arm support 31 and the second tower arm support 32 are assembled, the second pulling member 91 and the second pulley assembly 61 are installed, and the first steel wire rope 51 and the second steel wire rope 62 are wound. A partial pulling member can be arranged between the second luffing device 5 and the second tower arm support 32; the first pulling member 63 and the second pulling member 91 include but are not limited to the form of a pull plate and / or a pull cable.

[0110] Referring to Figure 5 The main arm 1 is pulled up, and the first steel wire rope 51 and the second steel wire rope 62 are continuously released, so that the included angle between the first tower arm support 31 and the second tower arm support 32 is increased. Before the main arm 1 is pulled up, the lifting steel wire rope can be fixed to avoid passive retraction;

[0111] Referring to Figure 6 When the main arm 1 is pulled up to a first angle with the ground, the second steel wire rope 62 is released to fall below the second pulley 612 in the second pulley assembly 61 to be close to the plane where the turntable 21 or the ground is located, so that the self-disassembly and assembly of the tower arm 4 is performed by using the second pulley assembly 61 and the second steel wire rope 62 as a self-disassembly and assembly hoisting pulley set;

[0112] Referring to Figures 7A-7C The second luffing device 6 is used as a self-disassembly and assembly hoisting pulley set of the arm support of the tower arm 4 to assemble the tower arm 4 arm sections until all the arm supports of the tower arm 4 are assembled into a complete tower arm 4 whole, and the whole machine station can be adjusted according to the arm length of the main arm 1 and the actual situation on site for convenient hoisting, including but not limited to Figures 7A-7C The whole machine and the tower arm 4 can be vertically positioned to ensure the lifting capacity of the main arm 1;

[0113] Referring to Figures 8A-8C After all the arm supports of the tower arm 4 are assembled into a whole, the luffing pulley of the second luffing device 6 is connected to the side of the tower arm 4 whole close to the main arm 1, the connection position can be determined according to the luffing angle of the main arm 1, the arm length of the tower arm 4 and the center of gravity, the second steel wire rope 62 is recovered to lift the end of the tower arm 4 close to the main arm 1, the second steel wire rope 62 is continuously recovered while the whole machine is moved to keep the second steel wire rope 62 in a vertical state, so that the hoisting process is not resistant to the rod, and the safety risk of external pulling and oblique pulling of the second steel wire rope 62 is reduced, until the side of the tower arm 4 close to the main arm 1 reaches the third connection position 51, and the main arm 1 and the tower arm 4 are connected by a pin shaft;

[0114] Referring to Figures 9A-9C The second steel wire rope 62 is released to be connected with the first pulling member 63, and after the connection is completed, the second steel wire rope 62 is recovered until the whole first pulling member 63 is in a straight state, and then the second steel wire rope 62 and / or the first steel wire rope 51 is recovered to pull up the tower arm 4 to a working state.

[0115] The dismounting procedure of the boom system is similar to the mounting procedure.

[0116] Reference Figures 2-9C In another aspect of the embodiments of the present disclosure, a crane is provided, which is applied to the crane mounting method of any of the above. The crane includes but is not limited to a crawler crane.

[0117] The crane includes a main boom 1, a turret 21, a support assembly 3, and a tower boom 4. The turret 21 is arranged on a chassis 23, a luffing system 22 is connected to the turret 21, and the main boom 1 of the boom system is connected to the turret 21.

[0118] The support assembly 3 includes a first tower boom support 31 and a second tower boom support 32. The boom tail of the first tower boom support 31 and the boom tail of the second tower boom support 32 are respectively detachably connected to the boom head of the main boom 1. The boom tail of the tower boom 4 is detachably connected to the boom head of the main boom 1. The connection positions of the first tower boom support 31, the second tower boom support 32, and the tower boom 4 to the boom head of the main boom 1 do not coincide.

[0119] In the embodiments, the first tower boom support 31, the second tower boom support 32, and the tower boom 4 are respectively and independently detachably connected to different positions of the boom head of the main boom 1. There is sufficient movement space between the connection positions of the first tower boom support 31, the second tower boom support 32, and the tower boom 4 to the boom head of the main boom 1, which allows the angle between the second tower boom support 32 and the tower boom 4 to be adjusted during the dismounting and mounting processes, and facilitates the overall lifting of the tower boom 4 after the assembly of the tower boom 4 is completed. During the assembly, the first tower boom support 31 and the second tower boom support 32 can be connected to the main boom 1 first. The main boom 1 is raised to a certain angle through luffing operation of the main boom 1, and sufficient installation space is left for the tower boom 4. Then, the tower boom 4 is mounted to the main boom 1. Therefore, the tower boom 4 does not need to be installed in a flat manner section by section to the main boom 1, which can greatly reduce the space requirement for the installation site, and make the boom system have good adaptability to the dismounting and mounting sites in different application scenarios.

[0120] Reference Figure 2 And Figure 3 In some embodiments, the boom head of the main boom 1 includes a mounting rack 10 and a connecting device 7. The first tower boom support 31 and the second tower boom support 32 are respectively connected to the mounting rack 10. The connecting device 7 is connected to the mounting rack 10. The boom tail of the tower boom 4 is connected to the connecting device 7.

[0121] In the embodiments, the main boom 1 can include the mounting rack 10 for respectively connecting the first tower boom support 31 and the second tower boom support 32, and the connecting device 7 connected to the mounting rack 10 and used for mounting the tower boom 4. The arrangement of the connecting device 7 allows the second tower boom support 32 and the tower boom 4 to be respectively mounted to the main boom 1 without being fixedly connected to the second tower boom support 32. The connecting device 7 can also improve the connection stability of the tower boom 4.

[0122] ReferenceFigure 2 and Figure 3 In some embodiments, the connecting device 7 is triangular, the first side 71 of the connecting device 7 is connected with the mounting frame 10, and the first vertex 72 opposite to the first side 71 of the connecting device 7 is connected with the arm tail of the tower arm 4.

[0123] In this embodiment, the connecting device 7 includes but is not limited to a triangle, the connecting device 7 is hinged with the main arm 1 through one side and is hinged with the tower arm 4 through the corresponding vertex of the side, which, under the premise of ensuring the reliable connection between the tower arm 4 and the main arm 1, makes the arm head position of the main arm 1 have sufficient space for the first tower arm support 31, the second tower arm support 32 and the posture adjustment of the tower arm 4, so as to facilitate the installation of the tower arm 4.

[0124] Referring to Figure 2 and Figure 3 In some embodiments, the mounting frame 10 is quadrilateral, has a first connecting position 11, a second connecting position 12 and a third connecting position 13, the first connecting position 11 and the second connecting position 12 are respectively located at two adjacent vertices of the quadrilateral, and the third connecting position 13 is located at the side adjacent to the second connecting position 12, and the second connecting position 12 is located between the first connecting position and the third connecting position 13. The first tower arm support 31 is connected with the first connecting position 11, the second tower arm support 32 is connected with the second connecting position 12, and the connecting device 7 is connected with the third connecting position 13.

[0125] In this embodiment, the first tower arm support 31, the second tower arm support 32 and the connecting device 7 are respectively connected with different connecting positions on the mounting frame 10, the tower arm 4 and the second tower arm support 32 can be independently connected with the main arm 1, the angle between the tower arm 4 and the second tower arm support 32 can be adjusted, the space between the connecting positions of the arms on the arm head of the main arm 1 is increased, the tower arm 4 can be conveniently assembled and integrated with the main arm 1 after the main arm 1 is completely assembled, the space occupied in the disassembly process is reduced from the sum of the lengths of the main arm 1 and the tower arm 4 in the prior art to the length of the longer one of the main arm 1 and the tower arm 4, the disassembly and assembly can be flexibly performed in a narrow space, and the operation demand of large lifting height can be met.

[0126] Referring to Figure 2 In some embodiments, the hoisting equipment further comprises a first luffing device 5 connected between the main arm 1, the first tower arm support 31 and the second tower arm support 32 and configured to adjust the angle between the first tower arm support 31 and the second tower arm support 32 and the main arm 1 in the luffing plane of the main arm 1.

[0127] The main arm 1 has a first working position and a second working position, and the included angle between the main arm 1 and the ground in the second working position is greater than the included angle between the main arm 1 and the ground in the first working position. When the main arm 1 is in the first working position, it is parallel to the ground or has a small included angle with the ground, and at this time, the main arm 1 can be assembled in sections. The second working position can be one or more, and when the main arm 1 is in the second working position, it includes but is not limited to an included angle of 70-90° with the ground, and at this time, sufficient space can be provided for the tower arm 4 to be assembled and installed.

[0128] In this embodiment, the first amplitude changing device 5 can adjust the included angle between the main arm 1 and the first tower arm support 31 and the included angle between the main arm 1 and the second tower arm support 32 during or after the main arm 1 is amplitude changed to the second working position, so as to improve the hanging capacity of the main arm 1 and the first tower arm support 31 and the second tower arm support 32, and facilitate the hoisting operation of the tower arm 4.

[0129] Reference Figure 2 In some embodiments, the first amplitude changing device 5 includes a first wire rope 51, which can adjust the included angle between the main arm 1 and the first tower arm support 31 and / or the included angle between the main arm 1 and the second tower arm support 32. In this embodiment, by winding and unwinding the first wire rope 51, the amplitude of the main arm 1 can be changed, so as to adjust the posture of the main arm 1 and switch the main arm 1 between the first working state and the second working state.

[0130] Reference Figure 2 In some embodiments, the hoisting device further includes a second amplitude changing device 6, one end of the second amplitude changing device 6 is connected with the arm head of the second tower arm support 32, and the other end of the second amplitude changing device 6 is detachably connected with the arm head of the tower arm 4 through a first pulling member 63.

[0131] In this embodiment, the angle between the second tower arm support 32 and the tower arm 4 can be changed by adjusting the second amplitude changing device 6, so as to facilitate the hanging installation of the arm section of the tower arm 4 during the installation of the tower arm 4 and the pulling up of the tower arm 4 after the assembly of the tower arm 4 is completed, so as to connect the assembled tower arm 4 with the arm head of the main arm 1.

[0132] Reference Figure 2 In some embodiments, the second amplitude changing device 6 includes a second amplitude changing pulley block 61 and a second amplitude changing wire rope 62. The second amplitude changing pulley block 61 includes a first pulley 611 and a second pulley 612 closer to the ground relative to the first pulley 611. The second amplitude changing wire rope 62 is wound between the first pulley 611 and the second pulley 612, so as to adjust the distance between the first pulley 611 and the second pulley 612.

[0133] The second pulley 612 is detachably connected to the tail of the tower arm 4, so as to pull up the tail of the tower arm 4 to the head of the main arm 1 by adjusting the distance between the first pulley 611 and the second pulley 612.

[0134] In this embodiment, the position of the second pulley 612 can be adjusted by adjusting the length of the second amplitude wire rope 62, so that the second pulley 612 can be connected to different positions of the tower arm 4, and the tower arm 4 can be pulled up and lifted.

[0135] Reference Figure 2 In some embodiments, the first tower arm support 31 and the second tower arm support 32 are located between the main arm 1 and the tower arm 4, and the first tower arm support 31 is located between the main arm 1 and the second tower arm support 32. In this embodiment, the first tower arm support 31 and the second tower arm support 32 of the hoisting device are located between the main arm 1 and the tower arm 4, and the first tower arm support 31 is located close to one side of the main arm 1.

[0136] Reference Figure 2 In some embodiments, the hoisting device further comprises a chassis 23 and a main arm luffing mechanism 22. The turntable 21 is rotatably arranged on the chassis 23, and the main arm luffing mechanism 22 is connected to the turntable 21 and is configured to luff the main arm 1.

[0137] In this embodiment, the main arm 1 is luffed by the main arm luffing mechanism 22, and after the main arm 1 is raised to the second working position and enough installation space is left for the tower arm 4, the tower arm 4 is installed with the main arm 1. The tower arm 4 does not need to be installed with the main arm 1 section by section, so that the space requirement of the hoisting device for the installation site can be greatly reduced, and the boom system has good adaptability to the disassembly and assembly sites in different application scenarios.

[0138] Reference Figure 2 In some embodiments, the boom system further comprises a second pulling member 91 and a third pulling member 92. The second pulling member 91 is connected between the main arm 1 and the first tower arm support 31, and the third pulling member 92 is arranged between the luffing system 22 of the hoisting device and the head of the main arm 1. The first pulling member 63, the second pulling member 91 and the third pulling member 92 include but are not limited to the form of a pull plate and / or a pull cable. In this embodiment, by arranging the second pulling member 91 and the third pulling member 92, the lifting capacity of the boom system can be increased, and the deformation of the boom can be reduced.

[0139] So far, the embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein according to the above description.

[0140] Although some specific embodiments of the present disclosure have been described in detail by way of example with reference to the drawings, it is to be understood that the above examples are intended to be illustrative only and are not intended to limit the scope of the present disclosure. It is to be understood that modifications or equivalent arrangements of the above embodiments can be made by those skilled in the art without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.

Claims

1. A method of installing a hoisting apparatus, characterized by, The method comprises: connecting the tail of the main arm (1) with a turntable (21), and installing a main arm luffing mechanism (22) on the turntable (21); when the main arm (1) is located at a first working position, connecting the tail of a first tower arm support (31) and the tail of a second tower arm support (32) with the head of the main arm (1) respectively, and installing a first luffing device (5) among the head of the main arm (1), the head of the first tower arm support (31) and the head of the second tower arm support (32); luffing the main arm (1) through the main arm luffing mechanism (22); when the main arm (1) is located at a second working position, connecting the tail of a tower arm (4) with the head of the main arm (1); installing a second luffing device (6) on the head of the second tower arm support (32); installing a first pulling member (63) between the second luffing device (6) and the head of the tower arm (4); adjusting the included angle between the tower arm (4) and the second tower arm support (32) in the luffing plane through the second luffing device (6); wherein, in the luffing plane of the main arm (1), the included angle between the main arm (1) and the ground in the second working position is greater than the included angle between the main arm (1) and the ground in the first working position; when the main arm (1) is located at the second working position, connecting the tail of the tower arm (4) with the head of the main arm (1) specifically comprises: sequentially assembling the arm sections of the tower arm (4) to form the complete tower arm (4); hoisting the assembled tower arm (4) and connecting the tail of the tower arm (4) with the head of the main arm (1) located at the second working position; wherein, the step of sequentially assembling the arm sections of the tower arm (4) to form the complete tower arm (4) comprises: hoisting part of the arm sections of the tower arm (4) through the second luffing device (6) so as to sequentially assemble the other arm sections of the tower arm (4).

2. The hoisting equipment installation method according to claim 1, characterized by, In the process of luffing the main arm (1) to the second working position through the main arm luffing mechanism (22) or after luffing the main arm (1) to the second working position, the method further comprises: adjusting the included angle between the first tower arm support (31) and the second tower arm support (32) and the main arm (1) in the luffing plane of the main arm (1) through the first luffing device (5) respectively.

3. The hoisting equipment installation method according to claim 2, characterized by, In the luffing plane of the main arm (1), the first tower arm support (31) and the second tower arm support (32) are located between the main arm (1) and the tower arm (4), and the first tower arm support (31) is located between the main arm (1) and the second tower arm support (32).

4. The hoisting equipment installation method according to claim 1, characterized by, Adjusting the position of at least one of the main arm (1), the first tower arm support (31) and the second tower arm support (32) in the luffing plane of the main arm (1) during the assembly process.

5. The hoisting equipment installation method according to claim 1, characterized by, hoisting the assembled tower arm (4) and connecting the tail of the tower arm (4) with the head of the main arm (1) located at the second working position; The boom tail of the tower arm (4) is hung and lifted by the second luffing device (6) so as to connect the boom tail of the tower arm (4) with the boom head of the main arm (1).

6. The hoisting equipment installation method according to claim 1, characterized by, The operation of installing the second luffing device (6) at the boom head of the second tower arm support (32) specifically comprises: The first pulley (611) is installed at the boom head of the second tower arm support (32), and the second luffing wire rope (62) is wound on the first pulley (611), and the second pulley (612) is installed on the second luffing wire rope (62) to form a luffing pulley block (61).

7. The hoisting equipment installation method according to claim 6, characterized by, The operation of hanging the partial boom section of the tower arm (4) by the second luffing device (6) specifically comprises: The second pulley (612) is lowered by adjusting the second luffing wire rope (62) so as to hang the partial boom section of the tower arm (4) by the second pulley (612).

8. The hoisting equipment installation method according to claim 1, characterized by, The connection position of the second tower arm support (32) and the tower arm (4) with the boom head of the main arm (1) does not coincide.

9. The hoisting equipment installation method according to claim 1, characterized by, The boom head of the main arm (1) comprises: A mounting frame (10), the first tower arm support (31) and the second tower arm support (32) are connected with the mounting frame (10) respectively; and A connecting device (7) connected with the mounting frame (10), the boom tail of the tower arm (4) is connected with the connecting device (7).

10. The hoisting equipment installation method according to claim 9, characterized by, The connecting device (7) is triangular, the first side (71) of the connecting device (7) is connected with the mounting frame (10), and the first vertex (72) opposite to the first side (71) of the connecting device (7) is connected with the boom tail of the tower arm (4).

11. The hoisting equipment installation method according to claim 9, characterized by, The mounting frame (10) is quadrilateral, has a first connection position (11), a second connection position (12) and a third connection position (13), the first connection position (11) and the second connection position (12) are respectively located at two adjacent vertices of the quadrilateral, and the third connection position (13) is located at a side adjacent to the second connection position (12), and the second connection position (12) is located between the first connection position and the third connection position (13). The first tower arm support (31) is connected with the first connection position (11), the second tower arm support (32) is connected with the second connection position (12), and the connecting device (7) is connected with the third connection position (13).

12. The hoisting equipment installation method of claim 1, wherein The first luffing device (5) comprises: The first wire rope (51) can adjust the included angle between the main arm (1) and the first tower arm support (31) and / or the included angle between the main arm (1) and the second tower arm support (32).

13. The hoisting equipment installation method of claim 1, wherein The other end of the second luffing device (6) is detachably connected with the boom head of the tower arm (4) through the first pulling member (63).

14. The hoisting equipment installation method of claim 1, wherein The hoisting device further comprises: A chassis (23), and the rotating platform (21) is rotatably arranged on the chassis (23).

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