CN109160413B - Double-base closed type triangular hoisting device for energy-saving prefabricated member and use method - Google Patents

Double-base closed type triangular hoisting device for energy-saving prefabricated member and use method Download PDF

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Publication number
CN109160413B
CN109160413B CN201811353346.4A CN201811353346A CN109160413B CN 109160413 B CN109160413 B CN 109160413B CN 201811353346 A CN201811353346 A CN 201811353346A CN 109160413 B CN109160413 B CN 109160413B
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China
Prior art keywords
hoisting
energy
lifting
prefabricated member
saving prefabricated
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CN109160413A (en
Inventor
杨小明
董明利
赵元楷
芦冬来
付林林
段志华
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Henan Zhong'an Zhengxin Construction Technology Co ltd
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Henan Zhong'an Zhengxin Construction Technology Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/12Slings comprising chains, wires, ropes, or bands; Nets
    • B66C1/18Band-type slings
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B50/00Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Abstract

The invention provides a double-base closed type triangular hoisting device for an energy-saving prefabricated member and a use method thereof, wherein the double-base closed type triangular hoisting device comprises triangular hoisting bases and hoisting shafts arranged on the hoisting bases, the hoisting shafts are parallel and spaced from each other, one end of a sling is connected with the hoisting device, the other end of the sling sequentially bypasses the two hoisting shafts and the energy-saving prefabricated member and then is fixed on the other hoisting shaft, and one outer side wall of the hoisting base is abutted against the outer side wall of the energy-saving prefabricated member, so that the energy-saving prefabricated member is hoisted; the device can effectively fill a triangular cavity formed by the upper part of the energy-saving prefabricated member and the sling, ensure the stability of hoisting and prolong the service life of the sling; the anti-slip grooves are formed in the three connecting edges, the anti-slip grooves are pressed on the energy-saving prefabricated member during hoisting operation, friction force is increased, sliding falling of the energy-saving prefabricated member is avoided, the safety of hoisting operation is greatly improved, and the anti-slip groove has important significance for hoisting operation of the energy-saving prefabricated member.

Description

Double-base closed type triangular hoisting device for energy-saving prefabricated member and use method
Technical Field
The invention belongs to the field of equipment hoisting, and particularly relates to a double-base closed type triangular hoisting device for an energy-saving prefabricated member and a use method.
Background
When a single lifting hook is used for lifting a short bundle or a single piece of rod-shaped material, a single steel wire rope with an 8-shaped head or a nylon lifting belt with an 8-shaped head is generally adopted for lifting, one end of the lifting belt is sleeved into a rope sleeve at the other end in the lifting process, so that a rope loop is formed, the middle part of a rod is fixed by the rope loop, and lifting operation is further carried out; when the overlong bar is hoisted, two hoisting belts are adopted, and the two ends of the bar are respectively fixed by the two hoisting belts for hoisting. In the actual hoisting process, the steel wire rope or the nylon hoisting belt can form a triangular cavity area right above the bar in the bar locking process. If the cavity is too large, the bar cannot be locked, so that the bar slides and falls off, and the high-altitude falling object is damaged, so that the bar is very dangerous; if the cavity is too small, the steel wire rope can suddenly slide at the intersection point in the hoisting process, so that the steel wire rope suddenly rebounds, the bar can violently shake in the air, the stability of the energy-saving prefabricated member is not facilitated, the breakage of the steel wire rope can be caused when serious, the bar cannot violently shake in the hoisting process by adopting the nylon hoisting belt, but the joint of the hoisting belt can slowly slide, the frequent hoisting bar can cause local violent abrasion, the service life of the hoisting belt is reduced, and the safe operation in the hoisting process is not facilitated. When the open type lifting device is used for lifting heavy and extra-heavy energy-saving prefabricated members, deformation guide slings are generated due to insufficient bearing force of the lifting shaft to fall off, and accordingly the energy-saving prefabricated members fall off and other risks are generated.
Therefore, it is desirable to provide a double-base closed type triangular hoisting device for energy-saving prefabricated members, which aims at overcoming the defects in the prior art.
Disclosure of Invention
The invention aims to provide a double-base closed type triangular hoisting device for an energy-saving prefabricated member, which at least solves the problems that the energy-saving prefabricated member cannot be locked to cause sliding falling of a bar in the prior hoisting operation, the energy-saving prefabricated member is severely vibrated due to rebound of a hoisting steel wire rope, the joint of a nylon hoisting belt is severely worn, the service life is low, the hoisting is heavy, the extra-heavy energy-saving prefabricated member is easy to fall and the like.
In order to achieve the above object, the present invention provides the following technical solutions:
an energy-saving double-base closed type triangular hoisting device for prefabricated members, comprising:
the lifting bases are in a flat plate shape and are used for bearing lifting shafts, and the number of the lifting bases is not less than two;
the hoisting shafts are assembled on the hoisting bases, the hoisting shafts are perpendicular to the plane where the hoisting bases are located, the two adjacent hoisting bases are parallel to each other, the hoisting shafts are used for bearing and guiding slings, and a plurality of hoisting shafts are arranged; one end of the sling is connected with the lifting device, the other end of the sling sequentially bypasses the two adjacent lifting shafts and the energy-saving prefabricated member and then is fixed on other mounting shafts, and one outer side wall of the lifting base is abutted against the outer side wall of the energy-saving prefabricated member, so that the energy-saving prefabricated member is lifted.
The double-base closed type triangular lifting device for the energy-saving prefabricated part, as described above, preferably, the lifting base comprises a first connecting edge, a second connecting edge and a bottom connecting edge, and the first connecting edge, the second connecting edge and the bottom connecting edge are connected end to end, so that the lifting base is in a triangular structure; the first connecting edge and the second connecting edge are respectively positioned at the left side and the right side of the triangular lifting base, and the bottom connecting edge is positioned at the bottom edge of the lifting base.
The double-base closed triangular hoisting device for the energy-saving prefabricated member is characterized in that the outer side wall of the connecting edge of the bottom is provided with an anti-slip groove;
preferably, the outer side walls of the first connecting edge, the second connecting edge and the bottom connecting edge are all provided with anti-slip grooves.
In the double-base closed type triangular hoisting device for the energy-saving prefabricated member, preferably, the lengths of the first connecting edge and the second connecting edge are the same, the length of the bottom connecting edge is not smaller than that of the first connecting edge, and the first connecting edge, the second connecting edge and the bottom connecting edge form an isosceles triangle hoisting base;
preferably, the lengths of the first connecting edge, the second connecting edge and the bottom connecting edge are the same, and the first connecting edge, the second connecting edge and the bottom connecting edge form an equilateral triangle lifting base.
According to the double-base closed type triangular hoisting device for the energy-saving prefabricated member, preferably, the connecting parts among the first connecting edge, the second connecting edge and the bottom connecting edge are all provided with the mounting holes, so that the hoisting shaft can be conveniently mounted.
The double-base closed type triangular hoisting device for the energy-saving prefabricated member as described above, preferably, the hoisting shaft includes:
the mounting parts are positioned at two ends of the hoisting shaft and are cylindrical, are assembled with the mounting holes and are used for connecting the hoisting shaft with the hoisting base;
the working part is positioned at the middle part of the hoisting shaft, two ends of the working part are connected with mounting parts, and the working part is cylindrical and is used for bearing and guiding the sling; the diameter of the working part is larger than that of the mounting part, and a positioning shaft shoulder is formed between the working part and the mounting part;
the installation part and the working part are of a coaxial integrated structure.
The double-base closed type triangular hoisting device for the energy-saving prefabricated member is preferably an integrally formed casting piece.
The double-base closed type triangular hoisting device for the energy-saving prefabricated member is characterized in that preferably, two hoisting shafts are respectively assembled in two groups of mounting holes corresponding to two parallel corresponding hoisting bases, and the other group of mounting holes are provided with movable pin shafts.
The double-base closed type triangular hoisting device for the energy-saving prefabricated member preferably further comprises a spacing sleeve, wherein the hoisting shafts are cylindrical, the two hoisting shafts are respectively assembled in corresponding mounting holes of a plurality of parallel corresponding hoisting bases, the hoisting bases are separated through the spacing sleeve sleeved on the hoisting shafts, and the other group of mounting holes are provided with movable pin shafts;
preferably, the outer diameter of the spacer sleeve is provided with a pulley structure, so as to reduce wear of the slings.
The method for using the double-base closed type triangular hoisting device for the energy-saving prefabricated member according to any one of the above claims, preferably, the method for using the double-base closed type triangular hoisting device comprises the following steps:
s1, one end of a sling is connected with a lifting device, the other end of the sling sequentially bypasses the inner sides of two lifting shafts and the energy-saving prefabricated member through the space between two parallel lifting bases, and the other end of the sling is sleeved on the lifting shaft on the same side as the connecting edge of the bottom;
s2, slowly lifting the sling to tighten the sling;
s3, hoisting the energy-saving prefabricated member;
s4, lifting is completed, the sling is lowered, the triangular lifting device is loosened, and lifting operation of the next energy-saving prefabricated member is performed.
Compared with the closest prior art, the technical scheme provided by the invention has the following excellent effects:
1. the invention adopts the closed structure of the triangular double-base assembly hoisting shaft, can effectively fill the triangular cavity formed by the upper part of the energy-saving prefabricated member and the sling in the hoisting process, and enables the connecting edge provided with the anti-skid groove to be abutted against the energy-saving prefabricated member to generate friction force, thereby avoiding the sliding and falling of the energy-saving prefabricated member and greatly improving the safety of hoisting operation; meanwhile, the contact length between the sling and the energy-saving prefabricated member is effectively increased by the hoisting shaft in the hoisting process; the design of the closed structure can control the sling, ensure the stability of the sling, avoid frequent sliding of the sling, effectively improve the service life of the sling, and further ensure the safety and stability of the hoisting process;
2. the pin shaft is adopted to replace one fixed hoisting shaft, so that the hoisting shaft can be quickly assembled and disassembled during hoisting operation, the time is saved, the working efficiency is greatly improved, and the hoisting device has important significance for hoisting operation of large-diameter or bundled bars;
3. the fixed hoisting shaft is matched with the triangular base and can be used as a hoisting point expander, so that a plurality of energy-saving prefabricated members can be hoisted at one time, and the hoisting range is greatly expanded;
4. the pulley structure is arranged on the hoisting shaft, so that the abrasion of the sling is greatly reduced, the service life of the sling is prolonged, and the safety of hoisting operation is improved; by arranging the pulley structure, the triangular hoisting device can be used as a pulley block, so that the application range of the triangular hoisting device is expanded, and the multipurpose of one object is realized;
5. the plurality of hoisting bases are arranged in parallel, so that a plurality of slings can be used for winding respectively during hoisting, and the hoisting weight and the hoisting stability of the hoisting device are greatly increased; has important significance for the hoisting operation of heavy and extra-heavy energy-saving prefabricated members.
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 specification, illustrate embodiments of the invention and together with the description serve to explain the invention. Wherein:
FIG. 1 is a schematic diagram of a double-base closed type triangular hoisting device for an energy-saving prefabricated member in an embodiment of the invention;
fig. 2 is a schematic structural diagram of a lifting base a according to an embodiment of the present invention;
FIG. 3 is a schematic view of a hoisting shaft according to an embodiment of the present invention;
FIG. 4 is a schematic view of a use state of a lifting device according to an embodiment of the present invention;
FIG. 5 is a flow chart of a lifting device according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of an integrated hoisting method according to an embodiment of the present invention;
FIG. 7 is a schematic view of a special hoisting method according to an embodiment of the invention;
fig. 8 is a schematic structural diagram of a double-base closed type triangular hoisting device for an energy-saving prefabricated member in embodiment 2 of the present invention;
fig. 9 is a schematic view showing a pulley structure in embodiment 3 of the present invention;
fig. 10 is a schematic diagram of a hoisting method of a pulley block in embodiment 3 of the present invention;
fig. 11 is a schematic structural diagram of a multi-base closed type triangular lifting device in embodiment 4 of the present invention.
In the figure: 1. hoisting the base A; 11. a first connecting edge; 12. a second connecting edge; 13. a bottom connecting edge; 2. hoisting the base B; 31. a first hoisting shaft; 32 a second hoisting shaft; 33. a third hoisting shaft; 311. a mounting part; 312. positioning a shaft shoulder; 313. a working section; 4. an anti-slip groove; 5. a bolt; 6. a spacer sleeve; 7. a pulley; 8. a sling; 9. energy-saving prefabricated member.
Detailed Description
The invention will be described in detail below with reference to the drawings in connection with embodiments. It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other.
In the description of the present invention, the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", etc. refer to the orientation or positional relationship based on that shown in the drawings, merely for convenience of description of the present invention and do not require that the present invention must be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. The terms "coupled" and "connected" as used herein are to be construed broadly and may be, for example, fixedly coupled or detachably coupled; either directly or indirectly through intermediate components, the specific meaning of the terms being understood by those of ordinary skill in the art as the case may be.
Example 1
According to an embodiment of the present invention, as shown in fig. 1 to 7, the present invention is an energy-saving double-base closed type triangle hoisting device for prefabricated members, comprising:
the lifting base is cut into a triangle by adopting a thick steel plate and is used for bearing a lifting shaft, and comprises a lifting base A1 and a lifting base B2, wherein the lifting base A1 and the lifting base B2 are identical, and the lifting base A1 is taken as an example for describing the structure; as shown in fig. 2, the lifting base A1 comprises a connecting edge, a mounting hole and a weight-reducing triangular hole, and in order to avoid stress concentration, round chamfers are arranged at corners of the weight-reducing triangular hole and the lifting base A1; the connecting edges of the lifting base A1 comprise a first connecting edge 11, a second connecting edge 12 and a bottom connecting edge 13, the first connecting edge 11 and the second connecting edge 12 are respectively positioned at the left side and the right side of the triangular lifting base A1, and the bottom connecting edge 13 is positioned at the bottom edge of the triangular lifting base A1 and used for contacting the energy-saving prefabricated member 9 to prevent the energy-saving prefabricated member 9 from slipping; the lengths of the first connecting edge 11, the second connecting edge 12 and the bottom connecting edge 13 are the same, so that the lifting base A1 is in an equilateral triangle shape, the design of the equilateral triangle shape can ensure that the triangular lifting device can be well pressed on the outer surface of the energy-saving prefabricated member 9, meanwhile, as three connecting edges are not different, one connecting edge can be randomly selected to be in contact with the energy-saving prefabricated member 9 when the triangular lifting device is used, the abrasion loss of three lifting shafts is the same after the triangular lifting device is used for a long time, and the service life of the triangular lifting device can be effectively prolonged. The mounting hole is positioned at the joint of the three connecting sides of the equilateral triangle. The anti-slip grooves 4 are formed in the outer side surfaces of the first connecting edge 11, the second connecting edge 12 and the bottom connecting edge 13, so that when the lifting device is lifted, the anti-slip grooves 4 are pressed on the contact part of the energy-saving prefabricated member 9, a better anti-slip effect can be achieved, meanwhile, the anti-slip grooves 4 are formed in the three connecting edges, three lifting shafts can be used indiscriminately when being lifted, the abrasion condition of each lifting shaft is consistent with that of the connecting edge, the service life of the lifting device is prolonged, and the use difficulty is reduced.
The hoisting shafts are respectively assembled in corresponding mounting holes of the hoisting bases A1 and B2, and are perpendicular to the plane where the hoisting bases are positioned, so that the hoisting bases are parallel to each other and used for bearing and guiding the slings 8; the hoisting shafts are provided with three hoisting shafts, namely a first hoisting shaft 31, a second hoisting shaft 32 and a third hoisting shaft 33; as shown in fig. 3, the hoist shaft includes:
the mounting parts 311 are positioned at two ends of the hoisting shaft and are cylindrical, are assembled with the mounting holes and are used for connecting the hoisting shaft with the hoisting base;
the working part 313, the working part 313 is positioned at the middle part of the hoisting shaft, and two ends of the working part 313 are connected with the mounting part 311 and are cylindrical and used for bearing and guiding the sling 8; the diameter of the working part 313 is larger than that of the mounting part 311, and a positioning shaft shoulder 312 is formed between the working part 313 and the mounting part 311;
the mounting portion 311 and the working portion 313 are a coaxial integrated structure.
Because the weight of the energy-saving prefabricated member 9 is generally large in hoisting work, the hoisting safety is prevented from being influenced by the falling of a hoisting shaft; the hoisting shaft is tightly matched with the mounting hole, and meanwhile, the joint of the hoisting shaft and the hoisting base is welded, so that the fixation and reliability of the hoisting shaft and the mounting hole are ensured. When the production batch is large, the triangular lifting device can be integrally cast for saving cost and reducing manufacturing difficulty.
As shown in fig. 4, during the hoisting operation, one end of the sling 8 is connected with the hoisting device, the other end of the sling 8 sequentially bypasses the first hoisting shaft 31, the second hoisting shaft 32 and the energy-saving prefabricated member 9, and is fixed on the third hoisting shaft 33, and the outer side wall of the bottom connecting edge 13 of the hoisting base abuts against the outer surface of the energy-saving prefabricated member 9, so that the energy-saving prefabricated member 9 is hoisted.
As shown in fig. 5, the embodiment of the invention further provides a use method of the double-base closed type triangular hoisting device for the energy-saving prefabricated member, which comprises the following steps:
s1, one end of a sling 8 is connected with a lifting device, the other end sequentially bypasses the inner sides of two lifting shafts and an energy-saving prefabricated member 9 through between two parallel lifting bases, and the other end of the sling 8 is sleeved on the lifting shaft on the same side on a bottom connecting edge 13;
s2, slowly lifting the sling 8 to tighten the sling 8;
s3, hoisting the energy-saving prefabricated member 9;
s4, lifting is completed, the sling 8 is lowered, the triangular lifting device is loosened, and the next energy-saving prefabricated member 9 is lifted.
As shown in fig. 6 and 7, the embodiment of the invention can also be used as a hoisting point expander during hoisting operation to finish integrated hoisting, realize hoisting a plurality of energy-saving prefabricated members 9 at a time and greatly improve hoisting efficiency; the invention can also be used as a connecting wire of the slings 8, and when needed, the two slings 8 are respectively connected to the two hoisting shafts, thereby realizing the transmission of the pulling force.
In this embodiment, the lifting base is an equilateral triangle, and the lifting shafts are the same, so that the lifting shafts and the connecting sides can be replaced arbitrarily, for example, the other end of the sling 8 is connected to the third lifting shaft 33, and also can be connected to the first lifting shaft 31 or the second lifting shaft 32, which is not limited herein.
Example 2
As shown in fig. 8, in this embodiment, in order to simplify the winding of the sling 8 during the use of the triangular hoisting device and improve the efficiency, one of the hoisting shafts is changed into a bolt 5 or a pin shaft, during the hoisting, the bolt 5 is removed, one end of the sling 8 is connected with the hoisting device, the other end bypasses the bottom of the energy-saving prefabricated member 9 from the left side to the right side of the energy-saving prefabricated member 9, the left sling 8 is sleeved into the triangular hoisting device through the open ends of the two hoisting bases without the hoisting shaft, the 8-shaped rope loop at the head of the sling 8 is placed in the mounting hole between the two hoisting bases, and the bolt 5 or the pin shaft passes through the mounting hole, so that one end of the sling 8 is fixed; after the belt hoisting operation is completed, the bolt 5 or the pin shaft is removed, so that the sling 8 can be conveniently loosened.
By arranging one of the hoisting shafts as the movable bolt 5 or pin shaft, the installation of the triangular hoisting device during hoisting operation is greatly facilitated, the installation and disassembly time is shortened, the operation flow is simplified, the production efficiency is improved,
other implementation steps are the same as those of embodiment 1, and will not be repeated here.
Example 3
As shown in fig. 9, in this embodiment, in order to further reduce the wear of the sling 8, a pulley 7 structure with a U-shaped groove is provided on the outer diameter of the working parts 313 of the two fixed hoisting shafts of the triangular hoisting device, and in the hoisting process, the sling 8 is located in the U-shaped groove of the pulley 7, so that the friction between the hoisting shaft and the sling 8 is reduced to the minimum, and the wear of the sling 8 is further reduced; as shown in fig. 10, by adding the pulley 7 structure, the triangular hoisting device can be used as a pulley, so that the application range of the triangular hoisting device is greatly expanded, and the hoisting shafts of the two pulley 7 structures are matched with fixed pulleys arranged above to form a pulley block, so that the heavier energy-saving prefabricated member 9 can be lifted by using a smaller driving force.
The pulley 7 structure with the V-shaped groove or the U-shaped groove is arranged on the outer diameter of the working part 313 of the hoisting shaft, so that the abrasion loss of the sling 8 is reduced during hoisting, the application range of the hoisting device is further enlarged, and the stability and the flexibility of the work are greatly improved; other implementation steps are the same as those of embodiment 2, and will not be described here again.
Example 4
As shown in fig. 11, in this embodiment, the two hoisting shafts are integrally cylindrical, the plurality of hoisting bases are fixed into a group of whole bodies through the spacer sleeve 6, and the other group of corresponding mounting holes penetrate through the bolts 5 or the pins, so that the hoisting steps are simplified, the optimization is further performed, the pulley 7 structure can be arranged on the outer wall of the spacer sleeve 6, when the heavy and extra-heavy energy-saving prefabricated member 9 is hoisted, a group of slings 8 cannot bear, the corresponding hoisting shafts and the energy-saving prefabricated member 9 are respectively bypassed through the plurality of slings 8, and the heads of the slings 8 are fixed on the hoisting device through the bolts 5 or the pins, so that the extra-heavy energy-saving prefabricated member 9 is hoisted stably. Other implementation steps are the same as those of embodiment 2, and will not be described here again.
In summary, the double-base closed type triangular hoisting device for the energy-saving prefabricated member can effectively fill the triangular cavity formed by the sling above the energy-saving prefabricated member in the hoisting process, and the connecting edge provided with the anti-slip groove is pressed on the energy-saving prefabricated member to generate friction force, so that the sliding and falling of the energy-saving prefabricated member are avoided, the cavity is eliminated, the pressure above the energy-saving prefabricated member is formed, the hoisting is simpler and more convenient, and the safety of hoisting operation is greatly improved; meanwhile, the contact length between the sling and the energy-saving prefabricated member is effectively increased by the hoisting shaft in the hoisting process, so that the energy-saving prefabricated member can be ensured to be more stable, the sling can be effectively controlled, the stability of the sling is ensured, and the service life of the sling is effectively prolonged; the detachable design of the lifting shaft can realize the quick installation and the disassembly of the lifting appliance during the lifting operation, thereby saving the time and greatly improving the working efficiency; through the arrangement of the pulleys, a plurality of purposes of one device are ensured, and the device has important significance for hoisting operation of large-diameter bundled bars or heavier and extra-heavy energy-saving prefabricated members.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides an energy-saving double-base closed triangle hoisting accessory for prefab, its characterized in that, triangle hoisting accessory includes:
the lifting bases are in a flat plate shape and are used for bearing lifting shafts, and the number of the lifting bases is not less than two;
the hoisting shafts are assembled on the hoisting bases, the hoisting shafts are perpendicular to the plane where the hoisting bases are located, the two adjacent hoisting bases are parallel to each other, the hoisting shafts are used for bearing and guiding slings, and a plurality of hoisting shafts are arranged; one end of the sling is connected with the lifting device, the other end of the sling sequentially bypasses the two adjacent lifting shafts and the energy-saving prefabricated member and then is fixed on other lifting shafts, and one outer side wall of the lifting base is abutted against the outer side wall of the energy-saving prefabricated member, so that the energy-saving prefabricated member is lifted;
the lifting base comprises a first connecting edge, a second connecting edge and a bottom connecting edge, and the first connecting edge, the second connecting edge and the bottom connecting edge are connected end to end so that the lifting base is of a triangle structure; the first connecting edge and the second connecting edge are respectively positioned at the left side and the right side of the triangular hoisting base, and the bottom connecting edge is positioned at the bottom edge of the hoisting base;
the triangular lifting device is an integrally formed casting piece.
2. The double-base closed type triangular hoisting device for the energy-saving prefabricated member as claimed in claim 1, wherein the outer side wall of the bottom connecting side is provided with an anti-slip groove.
3. The double-base closed type triangular hoisting device for the energy-saving prefabricated member as claimed in claim 2, wherein the outer side walls of the first connecting side, the second connecting side and the bottom connecting side are provided with anti-slip grooves.
4. The double-base closed type triangular hoisting device for the energy-saving prefabricated member according to claim 1, wherein the lengths of the first connecting edge and the second connecting edge are the same, the length of the bottom connecting edge is not smaller than that of the first connecting edge, and the first connecting edge, the second connecting edge and the bottom connecting edge form an isosceles triangle hoisting base.
5. The double-base closed type triangular hoisting device for the energy-saving prefabricated member as claimed in claim 4, wherein the lengths of the first connecting side, the second connecting side and the bottom connecting side are the same, and the first connecting side, the second connecting side and the bottom connecting side form an equilateral triangle hoisting base.
6. The double-base closed type triangular hoisting device for the energy-saving prefabricated member, as claimed in claim 1, wherein the connection parts among the first connection edge, the second connection edge and the bottom connection edge are provided with mounting holes, so that the hoisting shaft can be conveniently mounted.
7. The double-base closed type triangular hoisting device for energy-saving prefabricated parts as claimed in claim 6, wherein the hoisting shaft comprises:
the mounting parts are positioned at two ends of the hoisting shaft and are cylindrical, are assembled with the mounting holes and are used for connecting the hoisting shaft with the hoisting base;
the working part is positioned at the middle part of the hoisting shaft, two ends of the working part are connected with mounting parts, and the working part is cylindrical and is used for bearing and guiding the sling; the diameter of the working part is larger than that of the mounting part, and a positioning shaft shoulder is formed between the working part and the mounting part;
the installation part and the working part are of a coaxial integrated structure.
8. The double-base closed type triangular hoisting device for the energy-saving prefabricated member according to claim 7, wherein the two hoisting shafts are respectively assembled in two groups of mounting holes corresponding to the two parallel corresponding hoisting bases, and the other group of mounting holes are provided with movable pin shafts.
9. The double-base closed type triangular hoisting device for the energy-saving prefabricated member, as claimed in claim 6, is characterized in that the triangular hoisting device further comprises a spacing sleeve, the hoisting shafts are cylindrical, the two hoisting shafts are respectively assembled in corresponding mounting holes of a plurality of parallel corresponding hoisting bases, the plurality of hoisting bases are separated through the spacing sleeve sleeved on the hoisting shafts, and the other group of mounting holes are provided with movable pin shafts;
the outer diameter of the interval sleeve is provided with a pulley structure, so that the abrasion of the sling is reduced conveniently.
10. Use of the double-base closed delta hoisting device for energy-saving preforms according to any one of claims 1 to 9, characterized in that it comprises the following steps:
s1, one end of a sling is connected with a lifting device, the other end of the sling sequentially bypasses the inner sides of two lifting shafts and the energy-saving prefabricated member through the space between two parallel lifting bases, and the other end of the sling is sleeved on the lifting shaft on the same side as the connecting edge of the bottom;
s2, slowly lifting the sling to tighten the sling;
s3, hoisting the energy-saving prefabricated member;
s4, lifting is completed, the sling is lowered, the triangular lifting device is loosened, and the next lifting operation of the energy-saving prefabricated member is performed.
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CN113338382A (en) * 2021-06-24 2021-09-03 上海三一重机股份有限公司 Hoisting structure and excavator with same

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GB755438A (en) * 1954-02-16 1956-08-22 British Electrical Repairs Ltd Improvements relating to lifting slings
EP0353325A1 (en) * 1987-07-03 1990-02-07 Udo Dolezych Device for shortening and/or mounting flat webbing bands or belts
CN202063634U (en) * 2011-05-04 2011-12-07 河北二十冶工程技术有限公司 Tong type pipe mounting hanger
CN203237917U (en) * 2013-03-26 2013-10-16 蚌埠凯盛工程技术有限公司 Triangular flat glass hanger
CN209098022U (en) * 2018-11-14 2019-07-12 河南中安征信建筑科技有限公司 The energy-saving closed triangle boom hoisting of prefabricated component dual bed

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB755438A (en) * 1954-02-16 1956-08-22 British Electrical Repairs Ltd Improvements relating to lifting slings
EP0353325A1 (en) * 1987-07-03 1990-02-07 Udo Dolezych Device for shortening and/or mounting flat webbing bands or belts
CN202063634U (en) * 2011-05-04 2011-12-07 河北二十冶工程技术有限公司 Tong type pipe mounting hanger
CN203237917U (en) * 2013-03-26 2013-10-16 蚌埠凯盛工程技术有限公司 Triangular flat glass hanger
CN209098022U (en) * 2018-11-14 2019-07-12 河南中安征信建筑科技有限公司 The energy-saving closed triangle boom hoisting of prefabricated component dual bed

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