CN209872178U

CN209872178U - Crane with a movable crane

Info

Publication number: CN209872178U
Application number: CN201920457492.5U
Authority: CN
Inventors: 周玉龙; 孟进军; 赵江平; 韩雷
Original assignee: Construction Machinery Branch of XCMG
Current assignee: Construction Machinery Branch of XCMG
Priority date: 2019-04-08
Filing date: 2019-04-08
Publication date: 2019-12-31
Anticipated expiration: 2029-04-08

Abstract

The utility model discloses a crane, crane includes: the stand is directly placed on the ground and comprises a platform; the first end of the main arm is hinged to the front end of the platform; the counterweight is placed at the rear end of the platform; the amplitude changing device is connected with the second end of the main arm and the counterweight and is used for changing the amplitude of the main arm; the lifting appliance is used for lifting a heavy object; the lifting device comprises a rope, one end of the rope is connected with the lifting appliance and is lapped on the end part of the main arm, and the lifting appliance is lifted through the rope; and the power system is positioned on the platform and used for providing power for the actions of the amplitude variation device and the lifting device. The utility model discloses a hoist directly places frame subaerial through setting up, can lay reliably and steadily and carry out work subaerial, and is with low costs, simultaneously because the platform does not fix subaerial, the hoist convenient that changes.

Description

Crane with a movable crane

Technical Field

The utility model relates to an engineering machine tool field, in particular to hoist.

Background

The crane is mainly used for hoisting large-scale heavy objects, the construction of large-scale bridges, docks and ports is frequently repeated along with the rapid development of industrial technology, a large amount of goods are arranged on the ports and the docks every day to wait for shipment and discharge, and a large amount of cranes are needed for operation. Many of the current cranes known to the inventor are carried on a base platform fixed to the ground, which is inconvenient to transfer (transfer site), or the crane is disposed on the chassis of a moving vehicle, which is costly.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a base is directly placed subaerial hoist.

The utility model discloses a crane, include:

a base, placed directly on the ground, comprising a platform;

the first end of the main arm is hinged to the front end of the platform;

a counterweight disposed at a rear end of the platform;

the amplitude changing device is connected with the second end of the main arm and the counterweight and is used for changing the amplitude of the main arm;

the lifting appliance is used for lifting a heavy object;

a hoisting device including a rope having one end connected to the spreader and carried at a second end of the main arm, the spreader being hoisted by the rope;

and the power system is positioned on the platform and used for providing power for the actions of the amplitude variation device and the lifting device.

In some embodiments, the distance between the front end and the back end of the platform is adjustable.

In some embodiments, the platform comprises:

a front platform hinged to the first end of the main arm;

the rear platform is borne below the balance weight;

a middle tie beam connected between the front platform and the rear platform, the length of the middle tie beam being adjustable to adjust the distance between the front end and the rear end of the platforms.

In some embodiments, the middle connecting beam comprises a plurality of single-section beams detachably connected end to end, and the length of the middle connecting beam is adjusted by changing the number and/or specification of the single-section beams.

In some embodiments of the present invention, the,

the platform includes:

a left platform;

the right platform is arranged in parallel with the left platform and is detachably connected with the left platform;

the main arm includes:

a first arm, a first end of which is hinged at the front end of the left platform;

the first end of the second arm is hinged to the front end of the right platform, and the second arm is arranged in parallel with the first arm and is detachably and fixedly connected with the first arm;

the amplitude variation device comprises:

the first amplitude changing mechanism is connected between the second end of the first arm and the counterweight and is used for changing the amplitude of the first arm;

the second amplitude changing mechanism is connected between the second end of the second arm and the counterweight and is used for changing the amplitude of the second arm;

the hoisting device comprises:

a first lifting mechanism comprising a first rope connected at one end to the spreader and carried on a second end of the first arm;

the second hoisting mechanism is arranged corresponding to the second arm and comprises a second rope, one end of the second rope is connected with the lifting appliance, and the second rope is loaded on the second end of the second arm;

the power system comprises:

the first power system is positioned on the left platform and used for providing power for the first luffing mechanism and the first lifting mechanism;

and the second power system is separable from the first power system, is positioned on the right platform and is used for providing power for the second amplitude transformer mechanism and the second hoisting mechanism.

In some embodiments, the crane further comprises a superlift device comprising a superlift mast having one end removably hinged to the end of the platform.

In some embodiments, the base includes an under space disposed between the bottom of the platform and the ground for a transport vehicle to travel into.

In some embodiments, the base includes a plurality of spaced apart pads, the platform is disposed on the plurality of pads, and the bottom space is defined by the platform and the plurality of pads.

Based on the utility model provides a crane directly places subaerial base through setting up, can lay work subaerial reliably and stably, and is with low costs, simultaneously because the platform does not fix subaerial, the crane convenient that changes.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:

fig. 1 is a schematic structural diagram of a crane according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of the platform of the crane shown in FIG. 1;

fig. 3 is a schematic structural view of a crane according to another embodiment of the present invention under a single-vehicle working condition;

FIG. 4 is a schematic structural view of a crane according to another embodiment of the present invention under a super-lift condition;

fig. 5 is a schematic structural diagram of a crane according to another embodiment of the present invention;

FIG. 6 is a schematic structural view of part A of the crane shown in FIG. 5;

FIG. 7 is a schematic structural view of the B part of the crane shown in FIG. 5;

fig. 8 is a schematic structural diagram of a crane according to another embodiment of the present invention;

FIG. 9 is a schematic structural view of the C portion of the crane shown in FIG. 8;

fig. 10 is a schematic structural view of a D portion of the crane shown in fig. 8.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The "front" in the following embodiments refers to the direction of the main arm 2 with respect to the counterweight 4, i.e., the main arm 2 is located in front of the counterweight 4, and the "rear" is opposite to the "front". "left" means that the left hand of the observer is located in the left direction of the crane, and "right" is opposite to "left", when the observer views from the rear of the crane to the front of the crane.

As shown in fig. 1 to 5, the crane includes a base, a main arm 2, a counterweight 4, a luffing device 5, a spreader 1, a hoisting device 6, and a power system. The base is intended to be placed directly on the ground and comprises a platform 3. The first end of the main arm 2 is hinged to the front end of the platform 3; the balance weight 4 is placed at the rear end of the platform 3; the amplitude variation device 5 is connected with the second end of the main arm 2 and the counterweight 4 and is used for amplitude variation of the main arm 2; the lifting appliance 1 is used for lifting a heavy object; the hoisting device 6 comprises a rope, one end of which is connected with the lifting appliance 1 and is loaded at the second end of the main arm 2, and the lifting appliance 1 is hoisted through the rope; and the power system is positioned on the platform and used for providing power for the actions of the amplitude changing device 5 and the lifting device 6.

As shown in fig. 1 to 5, the counterweight 4 of the crane is a container type counterweight, and the counterweight 4 can be added or reduced according to the working requirement. The amplitude variation device 5 comprises an amplitude variation pulley block and an amplitude variation winch, an amplitude variation steel wire rope is wound between the amplitude variation pulley blocks and connected with the amplitude variation winch positioned on the platform, and the amplitude variation winch can rotate the main arm 2 around the front end of the platform 3 by winding and unwinding the amplitude variation steel wire rope on the amplitude variation pulley block, so that the angle between the main arm 2 and the platform 3 can be changed, the operation radius or the hoisting capacity of the crane can be changed, and the like. Two ends of the variable-amplitude pulley block can be respectively connected with the second end of the main arm 2 and the counterweight through devices such as a pulling plate or a steel wire rope.

As shown in fig. 1 to 5, the spreader 1 is a device for connecting with a heavy object to lift the heavy object, the conventional spreader 1 is a hook type spreader as shown in the figure, and the spreader 1 may not have a hook as long as it can be used for hanging the heavy object. The hoisting device 6 comprises a hoisting winch and a hoisting rope, as shown in the figure, the hoisting winch is arranged on the platform, one end of the hoisting rope is connected with the hoisting winch, and the other end of the hoisting rope is connected with the lifting appliance 1 and is borne at the second end of the main arm 2 far away from the platform. The bearing at the second end of the main arm 2 means that a hoisting rope connected to the spreader 1 can be passed around and provided at the second end of the main arm 2 so that the main arm 2 acts as a fulcrum when the spreader 1 is hoisted by the hoisting rope, or the hoisting rope can also be passed through the second end of the main arm 2 and provided at the end of the main arm 2 already acting as a bearing fulcrum. In the figure, the hoisting rope is passed over the end of the main arm 2 by passing over a pulley provided on the main arm 2.

The hoist of this embodiment, through setting up the base of directly placing on subaerial, compare in the setting through setting up the chassis, can place work subaerial steadily and reliably, ground connection specific pressure is little, and is with low costs. Compared with a crane arranged on a fixed rail, the crane is more convenient to transition because the base is not fixed on the ground, and does not need to be pre-fabricated on the ground to install a foundation, so that the foundation treatment cost is reduced.

In some embodiments, as shown in fig. 1-5 and 8, the distance between the front and rear ends of the platform 3 is adjustable. After the distance between the front end and the rear end of the platform 3 is adjustable, the distance between the counterweight 4 arranged at the rear end of the platform 3 and the hinged part of the main arm 2 on the platform 3 can be conveniently adjusted, and the size of the front and rear directions of the crane can be conveniently changed to adapt to different operating spaces. Meanwhile, the stress angle of the pulling plate or the rope of the amplitude variation device 5 can be adjusted by changing the angle between the pulling plate or the rope and the platform of the amplitude variation device 5 connected between the counterweight 4 and the main arm 2, and the lifting capacity of the crane can be adjusted.

In some embodiments, as shown in fig. 1-5, the platform 3 includes a front platform, a rear platform, and a central connecting beam. The front platform is hinged with the first end of the main arm 2; the rear part is horizontally loaded below the counterweight 4; the middle connecting beam is adjustable in length and is removably connected between the front and rear platforms. This setting is through the length of adjusting the middle part tie-beam, can conveniently adjust the distance between the front end of platform 3 and the rear end.

In some embodiments, as shown in fig. 1 and 2, the intermediate connecting beam comprises a plurality of single-section beams detachably connected end to end. The middle connecting beam is formed by modularizing and assembling single-section beams, and the length of the middle connecting beam can be conveniently and reliably adjusted. The length of the middle connecting beam can be conveniently adjusted by changing the number and/or specification of the single-section beams.

In some embodiments, the crane comprises a system and a device that can be independently disassembled, as shown in fig. 1 and 2, the platform 3 comprises a left platform and a right platform, and the right platform is juxtaposed with the left platform and detachably connected with the left platform. As shown in fig. 1, the main arm 2 comprises a first arm 21 and a second arm 22, a first end of the first arm 21 is hinged at the front end of the left platform; the first end of the second arm 22 is hinged at the front end of the right platform, is arranged in parallel with the first arm 21 and is detachably and fixedly connected with the first arm 21, the first arm 21 and the second arm 22 are connected through a transverse connecting beam in the figure, and the first arm 21 and the second arm 22 can be separated by removing the transverse connecting beam. By arranging the two arms connected in parallel, the load capacity of the crane can be increased, for example, the wind resistance of the main arm of the crane can be improved.

The luffing device 5 comprises a first luffing mechanism 51 and a second luffing mechanism 52, the first luffing mechanism 51 being connected between the second end of the first jib 21 and the counterweight 4 for luffing the first jib 21; a second horn 52 is connected between the second end of the second boom 22 and the counterweight 4 for horn the second boom 22; as shown, the first luffing mechanism 51 comprises a corresponding first luffing pulley block and a first luffing winch 53 connected thereto, as well as a rope or a pulling plate connected to the end of the first boom 21 and a rope or a pulling plate connected to the counterweight 4 at both ends of the first luffing pulley block. The second luffing mechanism 52 comprises a corresponding second luffing pulley block and a second luffing winch 54 connected thereto, as well as a rope or a pulling plate connected to the end of the second arm 22 and a rope or a pulling plate connected to the counterweight 4 at both ends of the second luffing pulley block. This arrangement allows the first horn 51 and the second horn 52 to independently control the luffing of the first horn 21 and the second horn 22, respectively, when the first horn 21 and the second horn 22 are separated.

The hoisting device 6 comprises a first hoisting mechanism 61 and a second hoisting mechanism 62, the first hoisting mechanism 61 is arranged corresponding to the first arm 21 and comprises a first hoisting winch 63 and a first rope, one end of the first rope is connected with the hoisting tool 1 and is lapped on the end part of the first arm 21, and the first hoisting winch 6 arranged on the left platform is connected with the first rope; the second hoisting mechanism 62 is arranged corresponding to the second arm 22, and includes a second hoisting winch 64 arranged on the right platform and a second rope having one end connected to the spreader 1 and overlapping the end of the second arm 22, and the second hoisting winch 64 is connected to the second rope.

The power system comprises a first power system and a second power system. A first power system is located on the left platform for powering the first horn 51 and the first lifting mechanism 61; a second power system, separate from the first power system, is located on the right platform for powering the second horn 52 and the second hoist mechanism 62. The first power system and the second power system can be devices such as a diesel engine and a motor, and can respectively and independently provide power for the corresponding amplitude-changing mechanism and the lifting mechanism.

The crane of this embodiment, through carrying out independent split with platform 3, main arm 2, change width of cloth device 5, play to rise device 6, driving system, counter weight etc. of crane to can become the crane of a plurality of little load capacity with the crane split, form the bicycle operating mode, through assembling not split, make each device of crane and a plurality of sub-device and the subsystem of system work in coordination, can make the crane keep big load capacity, form the multi-car operating mode, thereby help making the operating capacity of crane adapt to under different operational environment.

In some embodiments, as shown in fig. 4, the crane further comprises a superlift device comprising a superlift mast 9 having one end detachably hinged to the end of the platform 3. The setting can also make the hoist have the super lifting condition of super lifting device and do not have the super lifting condition of super lifting device and switch mutually between.

In some embodiments, the platform 3 comprises a plurality of modular sub-beams. For example, as shown in fig. 2, the platform 3 includes a left front main beam 331, a front connection beam 332, a right front main beam 333, a left middle connection beam 338, a right middle main beam 334, a left rear main beam 337, a rear connection beam 336, and a right rear connection beam 335. The front platform is formed by the left front main beam 331, the front connecting beam 332 and the right front main beam 333 being connected. The rear platform is formed by connecting the left rear main beam 337, the rear connecting beam 336 and the right rear connecting beam 335. The left platform is formed by connecting the left front main beam 331, the left middle connecting beam 338 and the left rear main beam 337. The right platform is formed by connecting the right front main beam 333, the right middle connecting beam 334 and the right rear main beam 335. Due to the modular design, the size and the structure of the platform of the crane can be adjusted more conveniently.

In some embodiments, the base comprises an under space provided between the bottom of the platform 3 and the ground for the carriage 8 to drive into. As shown in fig. 5 to 10, a bottom space capable of accommodating the transport vehicle 8 is provided between the bottom of the platform 3 of the crane and the ground, and the transport vehicle 8 can be used for carrying and transporting the platform by sending the transport vehicle into the bottom space below the platform 3 of the crane, so that the short-distance transition of the crane can be realized, and the crane is convenient and simple.

In some embodiments, the base comprises a plurality of spaced apart spacers, the platform 3 rests on the plurality of spacers 7, and the bottom space is enclosed by the platform and the plurality of spacers 7. Through setting up cushion 7, can make to have the bottom space between platform 3 and the ground, make things convenient for the entering of transport vechicle. The cushion block can be a separate cushion block separated from the bottom of the platform, and can also be a cushion block fixedly connected with the bottom of the platform 3. As shown in the figure, the cushion block 7 can be a roadbed box, and after the transport vehicle 8 transports the crane in a transition mode, the cushion block 7 can be removed, so that the contact area between the platform 3 and the ground is increased when the crane works, the ground pressure is reduced, and the crane works more stably and reliably.

In some embodiments, the transport vehicle is an axis vehicle, which is more suitable for turning into the bottom of the platform 3 to transport the crane.

In some embodiments, a transfer method of the crane is further disclosed, and the transfer method comprises the following steps: step b, driving the transport vehicle into the bottom space; c, lifting the bearing surface of the transport vehicle to bear the platform; and d, enabling the transport vehicle to move to integrally transport the platform 3 and the crane component arranged on the platform 3.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.

Claims

1. A crane, comprising:

a base, placed directly on the ground, comprising a platform (3);

the first end of the main arm (2) is hinged to the front end of the platform (3);

a counterweight (4) placed at the rear end of the platform (3);

the amplitude changing device (5) is connected with the second end of the main arm (2) and the counterweight (4) and is used for changing the amplitude of the main arm (2);

the lifting appliance (1) is used for lifting a heavy object;

a hoisting device (6) comprising a rope having one end connected to the spreader (1) and carried at the second end of the main arm (2), by means of which rope the spreader (1) is hoisted;

and the power system is positioned on the platform (3) and used for providing power for the actions of the amplitude variation device (5) and the lifting device (6).

2. A crane as claimed in claim 1, characterized in that the distance between the front end and the rear end of the platform (3) is adjustable.

3. A crane as claimed in claim 2, characterized in that said platform (3) comprises:

the front platform is hinged with the first end of the main arm (2);

the rear platform is borne below the counterweight (4);

a middle tie beam connected between the front platform and the rear platform, the length of the middle tie beam being adjustable to adjust the distance between the front end and the rear end of the platform (3).

4. The crane according to claim 3, wherein the middle connecting beam comprises a plurality of single-section beams detachably connected end to end, and the length of the middle connecting beam is adjusted by changing the number and/or specification of the single-section beams.

5. A crane according to any one of claims 1 to 4,

the platform (3) comprises:

a left platform;

the main arm (2) comprises:

a first arm (21) having a first end hinged to the front end of the left platform;

the first end of the second arm (22) is hinged to the front end of the right platform, and the second arm is arranged in parallel with the first arm (21) and detachably and fixedly connected with the first arm (21);

the amplitude variation device (5) comprises:

a first luffing mechanism (51) connected between the second end of the first jib (21) and the counterweight (4) for luffing the first jib (21);

a second horn (52) connected between the second end of the second boom (22) and the counterweight (4) for horn the second boom (22);

the hoisting device (6) comprises:

-a first hoisting mechanism (61) comprising a first rope connected at one end to the spreader (1) and carried on a second end of the first arm (21);

a second hoisting mechanism (62) arranged in correspondence with the second arm (22) and comprising a second rope having one end connected to the spreader (1) and carried on a second end of the second arm (22);

the power system comprises:

a first power system on the left platform for powering the first horn (51) and the first hoist (61);

a second power system, separable from the first power system, is located on the right platform for powering the second horn (52) and the second hoist mechanism (62).

6. A crane as claimed in claim 1, characterized in that it further comprises a superlift device comprising a superlift mast (9) having one end detachably hinged to the end of the platform (3).

7. A crane as claimed in any one of claims 1 to 4, characterized in that the foundation comprises a bottom space arranged between the bottom of the platform (3) and the ground, into which a transport vehicle (8) travels.

8. A crane as claimed in claim 7, characterized in that the base comprises a plurality of spacers (7) distributed at intervals, the platform (3) being placed on the plurality of spacers (7), and the bottom space being enclosed by the platform and the plurality of spacers (7).