CN111591906B

CN111591906B - Anti-swing tower crane with guide cover

Info

Publication number: CN111591906B
Application number: CN202010439827.8A
Authority: CN
Inventors: 周命端; 谢正双; 周乐皆; 刘芳
Original assignee: Beijing University of Civil Engineering and Architecture
Current assignee: Jianhu Pengsheng Machinery Co ltd
Priority date: 2018-06-12
Filing date: 2018-06-12
Publication date: 2021-09-28
Anticipated expiration: 2038-06-12
Also published as: CN108408605B; CN108408605A; CN111591906A

Abstract

The invention relates to an anti-sway tower crane with a guide cover, comprising: a bracket provided with a tower arm; a mobile trolley; a hanging mechanism comprising a first rope segment, a movable pulley, a second rope segment, a hook and a guide rod; The control unit; the guide rod is arranged between the first rope segments, the first end is connected with the moving trolley, the second end is connected with the movable pulley, and can be telescopically moved along the vertical direction; the first driving unit is arranged on the guide rod, and is connected with the control unit The unit is electrically connected, and a guide cover is arranged outside the second rope segment; the guide cover has a fixed end and a free end, the fixed end is connected with the movable pulley, and the free end can be telescopically moved along the vertical direction; wherein, the second rope segment and the guide cover A buffer device with a connecting end and a contacting end is arranged therebetween, the connecting end is fixedly connected with the guide cover, the contact end is in contact with the second rope segment, and the contact end is used for buffering the second rope segment close to the guide cover. The invention can effectively prevent the large swing of the movable pulley and the hook, and improve the use safety of the crane.

Description

Anti-swing tower crane with guide cover

The application is a divisional application of an invention patent application with the application number of 201810602869.1 and the invention name of 'a swing-proof building construction tower crane' filed on 12.6.2018.

Technical Field

The invention relates to the technical field of building construction, in particular to an anti-swing building construction tower crane.

Background

In the process of operation of the tower crane, in order to accurately complete the lifting operation, the lifting hook needs to be accurately moved to a working position and kept in a stable posture at the working position, so that the cargo can be accurately lifted. However, in the actual working process, because the rope section connected with the lifting hook is flexible, in the process of high-altitude operation, the rope section is easily influenced by wind power to swing, and then the lifting hook is driven to move and swing, so that the lifting hook can not accurately lift the goods. On the other hand, when the rope section and the hook swing greatly after the hook lifts the goods, the lifted goods may be thrown off the hook or collide with surrounding objects, which is likely to cause safety accidents. Meanwhile, when the rope section is close to the support of the crane, the swinging of the lifting hook and the rope section can cause the collision of the goods with the support, and the tower crane is damaged or even inclined to collapse.

The above information disclosed in the background section is only for enhancement of understanding of the background of the invention and therefore it may contain information that does not form the prior art that is known to a person of ordinary skill in the art.

Disclosure of Invention

In view of the above, it is desirable to provide a tower crane for anti-sway building construction, which solves or alleviates the technical problems in the prior art and provides at least one useful choice.

The technical scheme of the embodiment of the invention is realized as follows:

according to an embodiment of the present invention, there is provided a swing-proof construction tower crane including:

the device comprises a support, a lifting mechanism and a lifting mechanism, wherein a tower arm is arranged on the support, and a moving trolley is connected on the tower arm in a sliding manner;

the hanging mechanism is connected with the moving trolley and comprises a first rope section, a movable pulley and a lifting hook; the movable pulley is connected with the movable trolley through the first rope sections positioned on two sides of the movable pulley, and the first rope sections are used for driving the movable pulley to perform lifting motion; the lifting hook is connected with the movable pulley;

the control unit is used for controlling the first rope segment to drive the movable pulley and the lifting height of the lifting hook;

the hanging mechanism further comprises a guide rod, and the guide rod is arranged between the first rope sections on the two sides of the movable pulley and used for limiting the swinging motion of the movable pulley; the first end of the guide rod is connected with the movable trolley, the second end of the guide rod is connected with the movable pulley, and the second end can stretch and move in the vertical direction and is used for adjusting the length of the guide rod according to the length of the first rope section.

In some embodiments, the guide rod comprises a plurality of sequentially connected branch rod bodies, and the adjacent branch rod bodies are connected in a sliding manner.

In some embodiments, the guide rod is a telescopic cylinder structure, and includes a cylinder body and a telescopic rod that performs telescopic motion relative to the cylinder body, where the cylinder body includes the first end, and the telescopic rod includes the second end.

In some embodiments, a first driving unit is arranged on the guide rod, and the first driving unit is electrically connected with the control unit and is used for driving the movable pulley to lift according to the first rope segment so as to adjust the length of the guide rod in real time.

In some embodiments, the second end of the guide bar is hinged to the movable pulley by a rotating mechanism.

In some embodiments, the second end of the guide bar is flexibly connected to the movable pulley by an elastic mechanism.

In some embodiments, the hanging mechanism further comprises a second rope segment, and the hook is connected with the movable pulley through the second rope segment.

In some embodiments, a guide housing is disposed outside the second rope segment; the guide cover is provided with a fixed end and a free end, the fixed end is connected with the movable pulley, and the free end can stretch and move along the vertical direction and is used for adjusting the length of the guide cover according to the length of the second rope section; the guide cover is used for limiting the swinging motion of the second rope segment.

In some embodiments, a second driving unit is arranged on the guide cover, and the second driving unit is electrically connected with the control unit and is used for adjusting the length of the guide cover in real time according to the length of the second rope section; the guide cover comprises a plurality of sections of sub cover bodies which are connected in sequence, and the adjacent sub cover bodies are in sliding connection.

Due to the adoption of the technical scheme, the embodiment of the invention has the following advantages: according to the crane provided by the embodiment of the invention, the first telescopic guide rod is arranged between the first rope sections on two sides of the movable pulley, so that the telescopic adjustment can be carried out at any time along with the length of the first rope section, the purpose of preventing the first rope section from driving the movable pulley and the lifting hook to swing is achieved, and the overall use safety of the crane is improved.

The foregoing summary is provided for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will be readily apparent by reference to the drawings and following detailed description.

Drawings

In the drawings, like reference numerals refer to the same or similar parts or elements throughout the several views unless otherwise specified. The figures are not necessarily to scale. It is appreciated that these drawings depict only some embodiments in accordance with the disclosure and are therefore not to be considered limiting of its scope.

Fig. 1 is a schematic view of the overall structure of a crane according to an embodiment of the present invention.

Fig. 2 is a schematic view showing the connection of the guide bar with the movable pulley by the rotating mechanism according to the embodiment of the present invention.

Fig. 3 is a schematic view showing the connection of the guide bar with the movable pulley by the elastic mechanism according to the embodiment of the present invention.

Fig. 4 is a schematic view of the overall structure of a crane according to another embodiment of the present invention.

Fig. 5 is an installation diagram of the buffering device according to the embodiment of the present invention.

Detailed Description

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.

An embodiment of the present invention provides an anti-swing tower crane, as shown in fig. 1, including:

the support 1, the tower arm 2 of setting on support 1, sliding connection has travelling car 3 on tower arm 2.

And the hanging mechanism 4 is connected with the moving trolley 3. The hanging mechanism 4 at least comprises a first rope segment 5, a movable pulley 7 and a lifting hook 8. The movable pulley 7 is connected with the movable trolley 3 through the first rope sections 5 positioned on two sides of the movable pulley, and the first rope sections 5 are used for driving the movable pulley 7 to move up and down. The lifting hook 8 is connected with the movable pulley 7.

And a control unit (not shown in the figure) for controlling the lifting height of the first rope segment 5 driving the movable pulley 7 and the lifting hook 8.

The hanging mechanism 4 further comprises a guide rod 9, and the guide rod 9 is arranged between the first rope segments 5 on two sides of the movable pulley 7 and used for limiting the swinging motion of the movable pulley 7 and the first rope segments 5. The first end 91 of the guide bar 9 is connected with the travelling car 3, the second end 92 of the guide bar 9 is connected with the movable pulley 7, and the second end 92 can move telescopically in the vertical direction for adjusting the length of the guide bar 9 according to the length of the first rope segment 5. The length of the first rope portion 5 can be understood as the straight length of the first rope portion 5 between the movable pulley 7 and the travelling car 3. When the first rope portion 5 is shortened, the guide rod 9 is shortened, and when the first rope portion 5 is lengthened, the guide rod 9 is lengthened. Wherein the first end 91 is disposed opposite the second end 92.

In one embodiment, the number of the first rope portions 5 may be one, and after the first rope portions 5 are wound on the movable pulley 7, both ends of the first rope portions 5 are respectively connected with the movable trolley 3, so that the first rope portions 5 are located at both sides of the movable pulley 7.

In one embodiment, the guide rod 9 is a telescopic cylinder structure (not shown), which includes a cylinder body and a telescopic rod. The telescopic rod is inserted in the cylinder body and can perform telescopic motion relative to the cylinder body. The cylinder includes a first end 91 and the telescoping rod includes a second end 92.

In an alternative embodiment, the guide rod 9 comprises a plurality of segments of successively connected sub-rods 93, adjacent sub-rods 93 being slidably connected. The guide rod 9 can be made of any material in the prior art, as long as the strength of each sub-rod 93 is enough, and the weight of each sub-rod 93 does not affect the overall gravity center of the crane.

In order to adjust the length of the guide rod 9 in real time according to the lifting height of the movable pulley 7, a first driving unit (not shown in the figure) may be disposed on the guide rod 9, the first driving unit is electrically connected with the control unit, and the length of the guide rod 9 is adjusted according to the length change of the first rope segment 5 controlled by the control unit.

In one embodiment, as shown in fig. 2, the second end 92 of the guide bar 9 may be hinged to the movable pulley 7 by a rotating mechanism 10. The second end 92 of the guide rod 9 can rotate relative to the movable pulley 7, and the two ends (the first end 91 and the second end 92) of the guide rod 9 are prevented from being rigidly connected and broken. The hinge pretightening force between the second end 92 and the movable pulley 7 is adjustable, so that the movable pulley 7 can slightly swing relative to the guide rod 9 without interfering with the overall anti-swing effect of the guide rod 9 on the hanging mechanism 4.

In an alternative embodiment, as shown in fig. 3, the second end 92 of the guide rod 9 is flexibly connected to the movable pulley 7 by means of an elastic means 11. The second end 92 of the guide rod 9 can swing relative to the movable pulley 7, and the two ends (the first end 91 and the second end 92) of the guide rod 9 are prevented from being rigidly connected and broken. The swing amplitude between the second end 92 and the movable pulley 7 can be adjusted according to the bending strength of the elastic mechanism, so that the movable pulley 7 can slightly swing relative to the guide rod 9, and the whole anti-swing effect of the guide rod 9 on the hanging mechanism 4 is not hindered.

In one embodiment, as shown in fig. 1, the hanging mechanism 4 further comprises a second rope segment 6, and the hook 8 is connected with the movable pulley 7 through the second rope segment 6.

In one embodiment, as shown in fig. 4, the hanging mechanism 4 further comprises a guide housing 12, and the second guide housing 12 is disposed outside the second rope portion 6 for limiting the swing motion of the second rope portion 6. The guide housing 12 has a fixed end 121 connected to the movable pulley 7 and a free end 122 telescopically movable in the vertical direction for adjusting the telescopic length of the guide housing 12 according to the length of the second rope portion 6. Owing to be provided with guide bar 9 on first rope segment 5, be provided with guide housing 12 on second rope segment 6, consequently make the better realization of hoist hang mechanism 4 prevent rocking pendulum for lifting hook 8 is more stable at the during operation, is difficult for producing after the operating position that reachs the goods of lifting by crane and rocks, the more accurate quick goods of lifting by crane. Meanwhile, the overall safety performance of the crane is improved.

In one embodiment, the guide housing 12 includes a plurality of sub-housing bodies 123 connected in series, with adjacent sub-housing bodies 123 being slidably connected.

In one embodiment, the guide housing 12 is provided with a second fixing mechanism (not shown) for fixing the second rope portion 6 so that the second rope portion 6 is fixed relative to the second guide housing 12.

In one embodiment, a second driving unit (not shown) is disposed on the guiding hood 12, and the second driving unit is electrically connected to the control unit for adjusting the length of the guiding hood 12 in real time according to the length of the second rope segment 6.

As shown in fig. 5, a buffer device 13 is provided between the second rope portion 6 and the guide housing 12, and the buffer device 13 has a connection end 131 and a contact end 132. The connecting end 131 is fixedly connected with the guide housing 12, the contact end 132 is in contact with the second rope portion 6, and the contact end 132 is used for buffering the second rope portion 6 close to the guide housing 12, so that the second rope portion 6 is prevented from colliding with the guide housing 12, and the second rope portion 6 or the guide housing 12 is prevented from being damaged. The contact end 132 may be made of a flexible material to better absorb the impact force of the second cord segment 6.

The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive various changes or substitutions within the technical scope of the present invention, and these should be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. An anti-sway tower crane with a guide cover, characterized in that, comprising:

a bracket, a tower arm is arranged on the bracket, and a mobile trolley is slidably connected to the tower arm;

A hanging mechanism is connected to the mobile trolley, and the hanging mechanism includes a first rope segment, a movable pulley and a hook; the movable pulley is connected to the mobile trolley through the first rope segments located on both sides of the movable pulley. The first rope segment is used to drive the movable pulley to move up and down; the hook is connected to the movable pulley;

a control unit for controlling the lifting height of the movable pulley and the hook driven by the first rope segment;

The hanging mechanism further includes a guide rod, which is arranged between the first rope segments on both sides of the movable pulley to limit the swinging motion of the movable pulley; the first end of the guide rod is connected to the The moving trolley is connected, and the second end of the guide rod is connected with the movable pulley, and the second end can be telescopically moved along the vertical direction, and is used to adjust the length of the guide rod according to the length of the first rope segment. length;

A first drive unit, which is arranged on the guide rod, is electrically connected to the control unit, and is used to adjust the telescopic extension of the guide rod in real time according to the first rope segment driving the movable pulley to raise the height. length,

Wherein, the hanging mechanism further includes a second rope segment, and the hook is connected to the movable pulley through the second rope segment,

A guide cover is provided outside the second rope segment; the guide cover has a fixed end and a free end, the fixed end is connected with the movable pulley, and the free end can be telescopically moved in the vertical direction, and is used for The length of the second rope segment adjusts the length of the guide cover; the guide cover is used for restricting the swinging motion of the second rope segment, wherein between the second rope segment and the guide cover a A buffer device, the buffer device has a connection end and a contact end, the connection end is fixedly connected with the guide cover, the contact end is in contact with the second rope segment, and the contact end is used for pairing close to the guide The second cord segment of the hood is cushioned.

2. The crane according to claim 1, wherein the guide rod adopts a telescopic cylinder structure, comprising a cylinder body and a telescopic rod for telescopic movement relative to the cylinder body, the cylinder body including the first end , the telescopic rod includes the second end.

3 . The crane according to claim 1 , wherein the guide rod comprises a plurality of sub-rod bodies connected in sequence, and the adjacent sub-rod bodies are slidably connected. 4 .

4. The crane of claim 1, wherein the second end of the guide rod is hinged with the movable pulley through a rotating mechanism.

5 . The crane according to claim 1 , wherein a second driving unit is provided on the guide cover, and the second driving unit is electrically connected with the control unit, and is used for according to the second rope section. 6 . The length of the guide cover is adjusted in real time; the guide cover includes a plurality of sub-cover bodies connected in sequence, and the adjacent sub-cover bodies are slidably connected.