CN215711302U

CN215711302U - Super rope lifting wheel mounting system and crane

Info

Publication number: CN215711302U
Application number: CN202121316230.0U
Authority: CN
Inventors: 邵吉吉; 石丽君; 贾壮军
Original assignee: Sany Automobile Hoisting Machinery Co Ltd
Current assignee: Sany Automobile Hoisting Machinery Co Ltd
Priority date: 2021-06-11
Filing date: 2021-06-11
Publication date: 2022-02-01
Anticipated expiration: 2031-06-11

Abstract

The utility model provides a super rope lifting wheel mounting system and a crane, wherein the crane comprises a super rope lifting wheel and a main hoisting system, the super rope lifting wheel mounting system comprises a rope passing assembly, the rope passing assembly is arranged on a main arm or an auxiliary arm of the crane, and the rope passing assembly is used for a first rope of the main hoisting system to be in winding connection; the first rope is suitable for being connected with the super rope lifting wheel after being wound on the rope passing assembly. In the utility model, when the super rope lifting wheel needs to be assembled or disassembled, the first rope tool is connected with the super rope lifting wheel after being wound on the rope passing assembly, and the super rope lifting wheel is driven to move to an installation position or a winding and unwinding position when the first rope tool is wound and unwound.

Description

Super rope lifting wheel mounting system and crane

Technical Field

The utility model relates to the technical field of cranes, in particular to a super rope lifting wheel mounting system and a crane.

Background

At present, in cranes, for example, the main jib of a large tonnage crane is equipped with a superlift device. The super lifting rope wheel is an important component for connecting the super lifting device and the main arm or the auxiliary arm, and is connected with the main arm or the auxiliary arm through a hinged point on the main arm or the auxiliary arm. Under the general condition, the super-lifting rope wheel needs to be assembled by adopting auxiliary lifting equipment, so that a loading and unloading site which is large enough for the auxiliary lifting equipment to operate is needed, the super-lifting rope wheel is inconvenient to load and unload when site conditions do not allow, and the auxiliary lifting equipment needs to adjust the position when the super-lifting rope wheel is lifted and transported, so that the assembly efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model solves the problem of how to facilitate the disassembly and the assembly of the super rope lifting wheel and improve the disassembly and assembly efficiency.

In order to solve the above problems, the present invention provides a super rope lifting wheel mounting system for a crane, wherein the crane comprises a super rope lifting wheel and a main hoisting system, the super rope lifting wheel mounting system comprises a rope passing assembly, the rope passing assembly is arranged on a main arm or an auxiliary arm of the crane, and the rope passing assembly is used for a first rope of the main hoisting system to be in winding connection; the first rope is suitable for being connected with the super rope lifting wheel after being wound on the rope passing assembly.

Optionally, the rope passing assembly is disposed at a position close to the super rope sheave on the main arm or the auxiliary arm.

Optionally, the super-lifting sheave mounting system further comprises a connecting device adapted to be disposed on the first rope, the first rope being adapted to connect the super-lifting sheave through the connecting device.

Optionally, the rope passing assembly comprises a bracket and a pulley, the bracket is suitable for being arranged on the main arm or the auxiliary arm, the pulley is rotatably arranged on the bracket, and the first rope is suitable for being wound on the pulley.

Optionally, the super-lifting wheel mounting system further comprises a supporting seat, wherein the supporting seat is suitable for being arranged between the support and the main arm or the auxiliary arm so as to connect the support and the main arm or the auxiliary arm.

Optionally, this surpass rope sheave mounting system still includes first fastener and second fastener, be equipped with draw-in groove and first fixed orifices on the supporting seat, the supporting seat is suitable for through the draw-in groove with the fly jib joint, be equipped with second fixed orifices and first mounting hole on the support, first fastener is suitable for to pass first fixed orifices with the second fixed orifices is in order to connect the supporting seat with the support, the pulley is equipped with the second mounting hole, the second fastener is suitable for to pass first mounting hole with the second mounting hole is in order to connect the support with the pulley.

Optionally, the rope passing assembly further comprises a rope blocking wheel, the rope blocking wheel is rotatably arranged on the support, the pulley and the two rope blocking wheels are arranged along the length direction of the support, and the pulley is located between the two rope blocking wheels.

Optionally, the support includes first support body and second support body, first support body with the second support body interval set up in on the supporting seat, the pulley set up in first support body with between the second support body.

The utility model also provides a crane comprising the super rope lifting wheel mounting system.

Optionally, the crane further comprises a main arm and a super-lifting device arranged on the main arm, wherein the super-lifting device comprises a super-lifting rope wheel and a retractable second rope device, and the second rope device is wound on the super-lifting rope wheel.

Compared with the prior art, the utility model has the beneficial effects that: the rope passing assembly is arranged on a main arm or an auxiliary arm of the crane and is used for winding and connecting a first rope of the main hoisting system; when needs assembly or dismantlement surpass the rope sheave, first rope tackle is connected with surpassing the rope sheave after around connecting in crossing rope subassembly, drive when first rope tackle receive and releases surpass the rope sheave and remove to the mounted position or receive and release the position, compare in adopting supplementary hoisting apparatus to assist and surpass the assembly of rope sheave, it does not need extra place, be convenient for surpass the dismouting of rope sheave, simultaneously, under the guide of crossing rope subassembly, first rope tackle can will surpass the quick guide of rope sheave to assigned position, whole dismouting efficiency has been improved.

Drawings

Fig. 1 is a state view of the super-lift sheave mounting system of the present invention;

fig. 2 is another state view of the present invention of the super take-up sheave mounting system;

FIG. 3 is an assembly view of one embodiment of the fly-rope assembly and the secondary arm of the present invention;

FIG. 4 is a schematic structural view of one embodiment of a tether passing assembly of the present invention;

FIG. 5 is a schematic view of a perspective view of a tether assembly of the present invention

FIG. 6 is a cross-sectional view taken along A-A of FIG. 5;

FIG. 7 is a schematic structural view of an embodiment of a support base according to the present invention;

fig. 8 is a diagram of a using state of the rope passing assembly in the utility model.

Description of reference numerals:

1. a rope passing assembly; 11. a pulley; 12. a support; 121. a first frame body; 122. a second frame body; 13. a second fixing hole; 14. a rope blocking wheel; 2. a main hoisting system; 21. a main hoist; 22. a first rigging; 3. a connecting device; 4. a super lift device; 41. a rope lifting wheel is surpassed; 42. a second rigging; 43. a super-lift winch; 44. erecting a frame; 5. a main arm; 6. an auxiliary arm; 7. a supporting seat; 71. a first plate body; 72. a second plate body; 73. connecting columns; 74. a first fixing hole; 75. a card slot; 8. and (5) pulling the plate.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In a large-tonnage crane, the super-lift device 4 plays a role of stable lifting, and generally includes a vertical frame 44, a super-lift hoist 43, a second rope 42, and a super-lift sheave 41, wherein the vertical frame 44 is provided on the main arm 5 of the crane, the super-lift hoist 43 is provided on the vertical frame 44, and the super-lift sheave 41 is connected to the super-lift hoist 43 through the second rope 42 to realize a rope retracting action and a rope releasing action of the second rope 42, whereby the super-lift hoist 43 can lift the super-lift sheave 41 through the second rope 42, and after the super-lift sheave 41 is mounted on the super-lift sheave mounting position of the main arm 5 or the sub-arm 6, the super-lift hoist 43 tightens the second rope 42 to provide a pulling force to the main arm 5 or the sub-arm 6. In the process of loading and unloading the super lifting rope wheel 41, auxiliary lifting equipment is mostly adopted to lift the super lifting rope wheel 41 to a specified position at present, the auxiliary lifting equipment needs a large enough field, the cost is high, space limitation is realized, the auxiliary lifting equipment cannot be conveniently loaded and unloaded when working in the field, and the super lifting rope wheel 41 is not aligned well in the lifting process, so that the loading and unloading efficiency is low.

As shown in fig. 1, 2 and 3, an embodiment of the present invention provides a super lifting sheave mounting system for a crane, the crane includes a super lifting sheave 41 and a main hoisting system 2, and includes a rope passing assembly 1, the rope passing assembly 1 is disposed on a main arm 5 or an auxiliary arm 6 of the crane, and the rope passing assembly 1 is used for a first rope 22 of the main hoisting system 2 to be wound; the first rope element 22 is adapted to be connected to the super take-up sheave 41 after being looped around the rope passing assembly 1.

The main hoisting system 2 comprises a main hoisting machine 21, and the main hoisting machine 21 can drive the first rope tool 22 to perform rope reeling or rope unreeling. After the super rope lifting wheel installation system is adopted, the rope passing assembly 1 is arranged on a main arm 5 or an auxiliary arm 6 of the crane and is used for winding and connecting a first rope tool 22 of the main hoisting system 2; when the super lifting rope wheel 41 needs to be assembled or disassembled, the first rope tool 22 is connected with the super lifting rope wheel 41 after being wound on the rope passing assembly 1, and the super lifting rope wheel 41 is driven to move to an installation position or a storage position when the first rope tool 22 is stored.

When the rising sheave 41 is in the retracted position, it is locked by a latch. When the super lifting rope wheel 41 is installed, the first rope tool 22 is wound around the rope assembly 1 and connected with the super lifting rope wheel 41, then the bolt of the super lifting rope wheel 41 at the storage position is pulled out, the limitation on the super lifting rope wheel 41 is removed, the first rope tool 22 performs rope collecting action, the second rope tool 42 of the super lifting device 4 performs rope releasing action, the super lifting rope wheel 41 is driven to move towards the rope passing assembly 1, and when the proper super lifting rope wheel installation position is reached according to actual requirements, the super lifting rope wheel 41 is locked through the bolt. When the super lifting rope wheel 41 is detached, the bolt of the super lifting rope wheel 41 at the mounting position of the super lifting rope wheel is pulled out, the limitation on the super lifting rope wheel 41 is removed, the first rope tool 22 performs rope releasing action, the second rope tool 42 of the super lifting device 4 performs rope collecting action, the super lifting rope wheel 41 is driven to move towards the stand 44 of the super lifting device 4 until the super lifting rope wheel 41 moves to the releasing position of the super lifting rope wheel 41, and then the super lifting rope wheel 41 is locked through a pin shaft. Compare in adopting supplementary hoisting equipment to help and surpass the assembly of rope sheave 41, it does not need extra place, is convenient for surpass the dismouting of rope sheave 41, simultaneously, under the guide of crossing rope subassembly 1, first rope tackle 22 can be with surpassing the quick guide of rope sheave 41 to the assigned position, has improved holistic dismouting efficiency.

Optionally, the rope passing assembly 1 is arranged at a position close to the rope lifting wheel on the main arm 5 or the auxiliary arm 6.

In this embodiment, the rope passing assembly 1 is disposed at a position close to the overrun sheave on the main arm 5 or the sub-arm 6, that is, along the length direction of the boom of the crane, and the rope passing assembly 1 is disposed near the overrun sheave, for example, it may be disposed below the overrun sheave mounting position where the overrun sheave 41 is to be mounted, or disposed on a side of the overrun sheave mounting position where the overrun sheave 41 is to be mounted toward the head of the arm, or disposed on a side of the overrun sheave mounting position where the overrun sheave 41 is to be mounted away from the head of the arm. As shown in fig. 1 and 2, a super rope lifting wheel mounting position is arranged on the pulling plate 8 of the auxiliary arm 6, the rope passing assembly 1 is arranged on one side of the super rope lifting wheel mounting position far away from the arm head, or the rope passing assembly 1 is arranged between the pulling plate 8 and the super lifting device 4.

With this arrangement, the super rising sheave 41 can be quickly guided to the vicinity of the super rising sheave mounting position where the super rising sheave 41 is to be mounted, thereby facilitating the assembly of the super rising sheave 41.

Optionally, the super-lifting wheel mounting system further comprises a connecting device 3, wherein the connecting device 3 is arranged on the first rope appliance 22, and the first rope appliance 22 is suitable for connecting the super-lifting wheel 41 through the connecting device 3.

In this embodiment, as shown in fig. 1 and 2, the connecting device 3 is a rope end hinge or a rope end connecting buckle, and both ends of the connecting device 3 are respectively connected to the rising rope pulley 41 and the first rope 22. Normally, the connecting device 3 is first fixedly connected to the first rope 22, and then the first rope 22 is hooked to the rising sheave 41.

With this arrangement, the first rope 22 and the super lifting sheave 41 can be quickly attached and detached by the connecting device 3, and the efficiency of attaching and detaching the super lifting sheave 41 as a whole can be improved.

Optionally, the rope passing assembly 1 comprises a bracket 12 and a pulley 11, the bracket 12 is adapted to be disposed on the primary arm 5 or the secondary arm 6, the pulley 11 is rotatably disposed on the bracket 12, and the first rope 22 is adapted to be wound around the pulley 11.

In this embodiment, as shown in fig. 4 and 5, the rope passing assembly 1 includes a bracket 12 and a pulley 11, the bracket 12 is adapted to be disposed on the main arm 5 or the auxiliary arm 6, and the two may be one of clamping, bonding and welding; the pulley 11 is rotatably arranged on the bracket 12, in one embodiment, an axle hole is arranged on the bracket 12, a pin shaft matched with the axle hole is arranged at the central position of the pulley 11, and the pulley 11 is rotatably arranged on the bracket 12 through the axle hole and the pin shaft; in another embodiment, a pin shaft is arranged on the bracket 12, a pin hole matched with the pin shaft is arranged at the center of the pulley 11, and the pulley 11 is rotatably arranged on the bracket 12 through the shaft hole and the pin shaft. The first rope 22 is adapted to be looped around the pulley 11, and specifically, the first rope 22 is looped around the pulley 11 from the pulley 11 toward the side of the main arm 5 or the sub arm 6 toward the pulley 11 toward the side of the main arm 5 or the sub arm 6 away from the side of the main arm 5 or the sub arm 6.

So set up, cross rope assembly 1 simple structure, not only be convenient for manufacture, low cost moreover, simultaneously, pulley 11 rotates and sets up on support 12, does when receiving rope action or putting the rope action at first rigging 22, and pulley 11 follows the rotation and can reduce the wearing and tearing of first rigging 22.

Optionally, the super lifting wheel mounting system further comprises a supporting seat 7, wherein the supporting seat 7 is arranged between the support 12 and the main arm 5 or the auxiliary arm 6 to connect the support 12 and the main arm 5 or the auxiliary arm 6.

In this embodiment, as shown in fig. 3, the supporting seat 7 is disposed between the support 12 and the main arm 5 or the auxiliary arm 6, that is, the support 12 is supported on the main arm 5 or the auxiliary arm 6 through the supporting seat 7; the support seat 7 is connected with the support 12 and the main arm 5 or the auxiliary arm 6, specifically, the support seat 7 is fixedly connected with the support 12, and the support seat 7 is detachably connected with the main arm 5 or the auxiliary arm 6.

In this arrangement, since the support base 7 connects the bracket 12 to the main arm 5 or the sub-arm 6, the bracket 12 can be fixed to the main arm 5 or the sub-arm 6 relatively stably.

Optionally, the super rope lifting wheel mounting system further comprises a first fastener and a second fastener, a clamping groove 75 and a first fixing hole 74 are formed in the supporting seat 7, the supporting seat 7 is suitable for being clamped with the auxiliary arm 6 through the clamping groove 75, a second fixing hole 13 and a first mounting hole are formed in the support 12, the first fastener is suitable for penetrating through the first fixing hole 74 and the second fixing hole 13 to connect the supporting seat 7 and the support 12, the pulley 11 is provided with a second mounting hole, and the second fastener is suitable for penetrating through the first mounting hole and the second mounting hole to connect the support 12 and the pulley 11.

In this embodiment, the first fastening member is a connecting shaft. As shown in fig. 7, the supporting seat 7 includes a first plate 71, a second plate 72, and a connecting post 73 connecting the first plate 71 and the second plate 72, the first plate 71 and the second plate 72 are disposed at an interval, the connecting post 73 is disposed between the first plate 71 and the second plate 72, a locking groove 75 is disposed below the first plate 71 and the second plate 72, and the first plate 71 and the second plate 72 are locked to the frame rod of the sub-arm 6 through the locking groove 75. As shown in fig. 4 and 7, the first mounting plate and the second mounting plate are further provided with a first fixing hole 74, the bracket 12 is provided with a second fixing hole 13, after the bracket 12 extends between the first mounting plate and the second mounting plate, the first fixing hole 74 and the second fixing hole 13 are aligned, and then the connecting shaft is inserted between the first fixing hole 74 and the second fixing hole 13, so that the support base 7 and the bracket 12 are connected; meanwhile, a first mounting hole is further formed in the support 12, a second mounting hole is formed in the pulley 11, and a second fastener is suitable for penetrating through the first mounting hole and the second mounting hole to connect the support 12 and the pulley 11. Specifically, the pulley is provided with a second mounting hole which penetrates through along the axis, and after the first mounting hole is aligned with the second mounting hole, the second fastener penetrates through the first mounting hole and the second mounting hole.

So set up, supporting seat 7 is convenient for be connected with support 12 and main arm 5 or fly jib 6, and because several are dismantlement formula structures, thereby be convenient for change reduction cost of maintenance after damaging.

Optionally, the rope passing assembly 1 further includes a rope blocking wheel 14, the rope blocking wheel 14 is rotatably disposed on the bracket 12, the pulley 11 and two rope blocking wheels 14 are disposed along the length direction of the bracket 12, and the pulley 11 is located between the two rope blocking wheels 14.

In this embodiment, as shown in fig. 5 and 6, there are two rope blocking wheels 14, and the two rope blocking wheels 14 are rotatably disposed on the bracket 12, in one embodiment, a shaft hole is disposed on the bracket 12, a pin shaft matched with the shaft hole is disposed at a central position of the rope blocking wheel 14, and the rope blocking wheel 14 is rotatably disposed on the bracket 12 through the shaft hole and the pin shaft; in another embodiment, a pin shaft is arranged on the support 12, a pin hole matched with the pin shaft is arranged in the center of the rope blocking wheel 14, the rope blocking wheel 14 is rotatably arranged on the support 12 through the shaft hole and the pin shaft, two rope blocking wheels 14 are respectively arranged on two sides of the pulley 11 along the length direction (the direction of the Z axis) of the support 12, a rope passing space is arranged between each rope blocking wheel 14 and the pulley 11, and the two rope blocking wheels 14 and the pulley 11 rotate on the same horizontal plane.

So set up, can effectively avoid first rope tackle 22 to appear "rope skipping" phenomenon when wearing around from the upper and lower position of pulley 11, as shown in fig. 8, this pulley 11 can realize that first rope tackle 22 passes the effect that plays first rope tackle 22 of jacking alone from below fender rope pulley 14 and pulley 11 centre, avoids first rope tackle 22 to hang down and contact with main arm 5 or sub-arm 6 because of self quality, appears grinding rope phenomenon. When the sheave 11 is not detached from the overtravel sheave 41, the first rope 22 can be passed through the middle between the upper sheave 14 and the sheave 11 alone to lower the wire rope, thereby avoiding interference between the wire rope and other members.

Optionally, the bracket 12 includes a first bracket body 121 and a second bracket body 122, the first bracket body 121 and the second bracket body 122 are disposed on the supporting seat 7 at intervals, and the pulley 11 is disposed between the first bracket body 121 and the second bracket body 122.

In this embodiment, as shown in fig. 5, the support 12 includes a first support body 121 and a second support body 122, the first support body 121 and the second support body 122 are disposed on the support base 7 at an interval, specifically, the first support body 121 and the second support body 122 are both provided with a first fixing hole 74, the support base 7 is provided with a second fixing hole 13, and the first fixing hole 74 and the second fixing hole 13 are fixed by inserting a connecting shaft. The pulley 11 is disposed between the first frame body 121 and the second frame body 122, and two end surfaces of the pulley 11 facing the first frame body 121 and the second frame body 122 are rotatably connected with the first frame body 121 and the second frame body 122, respectively.

So set up, when pulley 11 follows first rope tackle 22 and rotates, because it rotates with first support body 121 and second support body 122 respectively and is connected, be convenient for pulley 11 stably sets up in support 12 to make it not influence the motion of first rope tackle 22.

Another embodiment of the utility model provides a crane comprising a super-lift sheave mounting system as described above.

After the crane of the embodiment is adopted, the rope passing assembly 1 is arranged on the main arm 5 or the auxiliary arm 6 of the crane and is used for winding and connecting the first rope 22 of the main hoisting system 2; when the super lifting rope wheel 41 needs to be assembled or disassembled, the first rope tool 22 is connected with the super lifting rope wheel 41 after being wound on the rope passing assembly 1, and the super lifting rope wheel 41 is driven to move to an installation position or a storage position when the first rope tool 22 is stored. The assembling problem of different positions of the super rope lifting wheel 41 and the main arm 5 or the auxiliary arm 6 can be well solved, other auxiliary hoisting equipment except a crane is not needed, the problem of operation site puzzlement required by additional auxiliary hoisting equipment is further solved, and labor and material cost derived from renting the auxiliary hoisting equipment, the site and the like is saved. Meanwhile, the rope passing assembly 1 and the main arm 5 or the auxiliary arm 6 are of a detachable structure, can be assembled in use and disassembled after use, and can be used in a plurality of different main arms 5 or auxiliary arms 6 along with the change of the connection position of the rope exceeding rope pulley 41. And finally, the pulley 11 of the rope passing assembly 1 can be used as a transition pulley 11, and the distance between the jacking steel wire rope and the main arm 5 or the auxiliary arm 6 is reduced. Thereby solving the problem that the partial deflection is too large and the main arm 5 or the auxiliary arm 6 generates rope grinding due to the large length of the auxiliary arm 6, the long rope releasing length and the heavy weight of the main hoisting steel wire rope

Optionally, the crane further comprises a main arm 5 and a super lifting device 4 arranged on the main arm 5, wherein the super lifting device 4 comprises a super lifting rope wheel 41 and a retractable second rope device 42, and the second rope device 42 is wound on the super lifting rope wheel 41.

When the overtaking rope wheel 41 is installed, the first rope tool 22 is wound around the pulley 11 and connected with the overtaking rope wheel 41, then the bolt of the overtaking rope wheel 41 at the storage position is pulled out, the limitation of the overtaking rope wheel 41 is released, the first rope tool 22 performs rope collecting action, the second rope tool 42 of the overtaking device 4 performs rope releasing action, thereby driving the overtaking rope wheel 41 to move towards the rope passing assembly 1, and when the overtaking rope wheel 41 reaches the proper overtaking rope wheel installation position of the main arm 5 or the auxiliary arm 6, the overtaking rope wheel 41 is locked through the bolt. When the super lifting rope wheel 41 is detached, the bolt of the super lifting rope wheel 41 at the mounting position of the super lifting rope wheel is pulled out, the limitation on the super lifting rope wheel 41 is removed, the first rope tool 22 performs rope releasing action, the second rope tool 42 of the super lifting device 4 performs rope collecting action, the super lifting rope wheel 41 is driven to move towards the stand 44 of the super lifting device 4 until the super lifting rope wheel 41 moves to the releasing position of the super lifting rope wheel 41, and then the super lifting rope wheel 41 is locked through a pin shaft.

Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the spirit and scope of the present disclosure, and these changes and modifications are intended to be within the scope of the present disclosure.

Claims

1. A super rope lifting wheel mounting system is used for a crane, the crane comprises a super rope lifting wheel and a main hoisting system, and the super rope lifting wheel mounting system is characterized by comprising a rope passing assembly, the rope passing assembly is suitable for being arranged on a main arm or an auxiliary arm of the crane, and the rope passing assembly is used for a first rope tool of the main hoisting system to be in winding connection; the first rope is suitable for being connected with the super rope lifting wheel after being wound on the rope passing assembly.

2. The super scoop pulley mounting system as defined in claim 1, wherein the rope passing assembly is disposed proximate to the super scoop pulley on the primary or secondary arm.

3. The super take-up sheave mounting system of claim 1, further comprising a connecting device adapted to be disposed on the first rope, the first rope adapted to connect the super take-up sheave through the connecting device.

4. The super take-up sheave mounting system of claim 1 wherein the rope passing assembly comprises a bracket adapted to be disposed on the primary arm or the secondary arm and a pulley rotatably disposed on the bracket, the first rope adapted to be looped around the pulley.

5. The rope sheave mounting system of claim 4, further comprising a bearing seat adapted to be disposed between the bracket and the primary arm or the secondary arm to connect the bracket to the primary arm or the secondary arm.

6. The rope sheave mounting system of claim 5, further comprising a first fastener and a second fastener, wherein the support base is provided with a slot and a first hole, the support base is adapted to be clamped with the secondary arm through the slot, the bracket is provided with a second hole and a first hole, the first fastener is adapted to pass through the first hole and the second hole to connect the support base and the bracket, the pulley is provided with a second hole, and the second fastener is adapted to pass through the first hole and the second hole to connect the bracket and the pulley.

7. The rope sheave mounting system of claim 5, wherein the bracket comprises a first bracket body and a second bracket body, the first bracket body and the second bracket body are spaced apart from each other on the support base, and the pulley is disposed between the first bracket body and the second bracket body.

8. The rope sheave mounting system of claim 4, wherein the rope passing assembly further comprises a rope blocking wheel rotatably disposed on the bracket, the pulley and the two rope blocking wheels are disposed along a length of the bracket, and the pulley is disposed between the two rope blocking wheels.

9. A crane comprising the superlift sheave mounting system of any of claims 1-8.

10. The crane of claim 9, further comprising a main arm and a super lift device disposed on the main arm, the super lift device comprising a super lift sheave and a second rope, the second rope being looped around the super lift sheave.