Lifting appliance and lifting system
By designing suspenders for hanging beams, connectors, telescopic units and matching units, the problems of lifting adaptation and leveling of prefabricated components of different specifications are solved, and efficient lifting and construction leveling effects are achieved.
Patent Information
- Application Number
- CN202422345126.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-09-25
AI Technical Summary
The prior art is difficult to adapt to prefabricated components of different specifications for lifting, and it is difficult to ensure the level of prefabricated components during the lifting process, which affects subsequent construction.
A spreader is designed, including a hanging beam, a connecting piece, a telescopic unit and a mating unit. Through the combination of multiple hanging point groups and a telescopic unit, it can adapt to suspended items of different specifications, reduce the length of the wire rope and lifting height, and adjust the deflection angle of the hanging beam to level the suspended items.
The adaptation of prefabricated components of different specifications is achieved, the height requirements for lifting equipment is reduced, the difficulty of selecting lifting equipment is reduced, and the leveling can be achieved when the items are inclined, improving construction efficiency.
Smart Images
Figure CN223047110U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hoisting, in particular to a lifting tool and a hoisting system. Background Art
[0002] In large-scale construction projects (such as dock assembly), sometimes it is necessary to hoist precast components to the required assembly position by a crane. The hoisting method sometimes is to set a lifting tool at the hoisting rope of the crane, and connect the lifting points on the lifting tool with the lifting points on the precast components through steel wires.
[0003] At present, due to different construction conditions, precast components include various specifications, such as long and narrow precast parts, short and wide precast parts. When hoisting precast components of different specifications, it is difficult to adapt to different specifications of precast components, and it is difficult to ensure a reasonable stress angle of the steel wire rope during hoisting. A longer steel wire rope is required, and thus a larger hoisting height is needed. The precast components will tilt after being lifted, and it is not easy to ensure horizontal, which is not conducive to subsequent construction. Summary of the Utility Model
[0004] The purpose of the utility model is to overcome the technical problems in the prior art that it is difficult to hoist and adapt precast components of different specifications, and it is difficult to ensure that the tilt angle of the precast components will not affect subsequent construction during hoisting, and to provide a lifting tool and a hoisting system.
[0005] In a first aspect, the utility model provides a lifting tool, including:
[0006] A lifting beam, which has a plurality of lifting point groups along its length direction;
[0007] A connecting member, the end of which is rotatably connected to the middle beam section along the length direction of the lifting beam;
[0008] A telescopic unit, which is located on one side of the connecting member along the length direction of the lifting beam, and both ends of the telescopic unit are respectively hinged to the lifting beam and the connecting member, and is used to drive the lifting beam and the connecting member to rotate;
[0009] A matching unit, which is located on the other side of the connecting member along the length direction of the lifting beam, and the matching unit is connected to the lifting beam.
[0010] When suspending the suspended item, for suspended items of different specifications, appropriate suspension methods can be selected through multiple suspension point groups of the suspension beam, thereby reducing the required lifting height, lowering the requirements for the height of the lifting equipment, and facilitating the selection of the lifting equipment. Through the setting of the telescopic unit, the deflection angle of the suspension beam relative to the connecting piece can be adjusted. When the suspended item is tilted, the deflection angle of the suspension beam can be adjusted by the telescopic movement of the telescopic unit, thereby leveling the suspended item and facilitating subsequent construction. The cooperation unit and the telescopic unit are respectively located on both sides of the connecting piece, enabling the suspension beam to achieve a certain degree of balance and reducing the deflection of the lifting tool caused by the center of gravity offset.
[0011] Preferably, the suspension point group includes two suspension points, and the two suspension points are symmetrically arranged relative to the suspension beam along the width direction of the suspension beam. This reduces the deflection of the lifting tool.
[0012] Preferably, the suspension point is provided with a lifting lug. The suspension of the suspended item is achieved through the lifting lug.
[0013] Preferably, the axis of rotation of the connecting piece and the suspension beam is the rotation axis, and multiple suspension point groups are symmetrically arranged relative to the rotation axis. This maximally improves the balance of the lifting tool and the suspended item during the suspension process and reduces the deflection of the lifting tool.
[0014] Preferably, there are at least four groups of suspension point groups; two of the suspension point groups are the first suspension point groups, and the two first suspension point groups are respectively located at both ends of the suspension beam. The opening direction of the lifting lug provided at the suspension point of the first suspension point group is perpendicular to the length direction of the suspension beam; the remaining multiple suspension point groups are the second suspension point groups, and the multiple second suspension point groups are arranged on the middle beam section of the suspension beam. The opening direction of the lifting lug provided at the suspension point of the first suspension point group is parallel to the length direction of the suspension beam.
[0015] Preferably, the connecting piece and the suspension beam are rotationally connected through a suspension shaft, and the axis of the suspension shaft is perpendicular to the length direction of the suspension beam.
[0016] Preferably, the axis of rotation of the connecting piece and the suspension beam is the rotation axis, and the rotation axis is located at the exact middle of the suspension beam along its length direction. This reduces the deflection of the lifting tool.
[0017] Preferably, the telescopic unit is a hydraulic telescopic rod.
[0018] Preferably, the cooperation unit is a hydraulic power unit, and the hydraulic power unit is used to provide hydraulic power for the hydraulic telescopic rod.
[0019] In a second aspect, the present utility model provides a hoisting system, comprising a hoisting device and a sling as described in any of the above solutions; a pulley block is provided at the top of the connecting member of the sling; the hoisting device is connected to the pulley block through a hoisting rope.
[0020] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0021] 1. A sling provided by the present utility model, through the settings of a suspension beam, a connecting member, a telescopic unit, and a matching unit, can be adapted to suspended items with different specifications, and at the same time, reduce the length of the steel wire rope required during suspension, thereby reducing the required hoisting height, lowering the requirements for the height of the hoisting device, and facilitating the selection of the hoisting device. At the same time, it reduces the skew generated by the suspended item, and can adjust the skew angle of the suspension beam when the suspended item is tilted, thereby leveling the suspended item and facilitating subsequent construction.
[0022] 2. A hoisting system provided by the present utility model, by using the corresponding sling in the hoisting system, can reduce the required hoisting height, lower the requirements for the height of the hoisting device. At the same time, during the construction process, it reduces the skew generated by the suspended item, and can adjust the skew angle of the suspension beam when the suspended item is tilted, thereby leveling the suspended item and facilitating subsequent construction. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a front view schematic diagram of Embodiment 1 of the present utility model.
[0024] Figure 2 It is a left side view schematic diagram of Embodiment 1 of the present utility model.
[0025] Figure 3 It is a top view schematic diagram of the suspension beam of Embodiment 1 of the present utility model.
[0026] Figure 4 It is a hinge connection schematic diagram of the suspension beam and the connecting member of Embodiment 1 of the present utility model.
[0027] Markings in the figure:
[0028] 1 - suspension beam; 2 - suspension shaft; 3 - connecting member; 4 - hydraulic telescopic rod; 51 - first suspension point group; 52 - second suspension point group; 53 - suspension ear; 6 - hydraulic power unit; 7 - pulley block. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0029] The present utility model will be further described in detail below with reference to specific embodiments. However, this should not be construed as limiting the scope of the above-mentioned subject matter of the present utility model to the following embodiments. All technologies implemented based on the content of the present utility model fall within the scope of the present utility model.
[0030] Unless otherwise specified, in the description of the specific embodiments of the present utility model, the expression terms indicating the orientation or positional relationship such as "upper", "lower", "left", "right", "center", "inner", "outer", etc. are all based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product / device / equipment of the present utility model is habitually used. These terms of orientation or positional relationship are only for the convenience of describing the solution of the present utility model or simplifying the description in the specific embodiments, so as to facilitate technicians to quickly understand the solution, rather than indicating or implying that a specific device / component / element must have a specific orientation or be constructed and operated in a specific positional relationship. Therefore, it should not be construed as a limitation to the present utility model.
[0031] In addition, when terms such as "horizontal", "vertical", "hanging", "parallel" appear, it does not mean that the corresponding device / component / element is required to be absolutely horizontal or vertical or hanging or parallel, but can be slightly inclined or have a deviation. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined. Or, it can be simply understood that the corresponding device / component / element is arranged in the directions of "horizontal", "vertical", "hanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the solution of the present utility model.
[0032] In addition, when expressions such as "first", "second", "third", etc. appear in the terms, they are only used to distinguish the description of the same or similar components, and should not be understood as emphasizing or implying the relative importance of a specific component.
[0033] In addition, in the description of the embodiments of the present utility model, "several", "multiple", "a plurality of" represent at least 2. It can be any situation such as 2, 3, 4, 5, 6, 7, 8, 9, etc., and can even be more than 9.
[0034] In addition, in the description of the technical solution of the present utility model, unless otherwise clearly specified / defined / limited, where terms such as "set", "installed", "connected", "connected to", "provided with", "laid", "arranged" appear, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be connection means commonly used in the art such as welding, riveting, bolting, and threaded connection. Such a connection can be a mechanical connection, an electrical connection or a communication connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two components.
[0035] Example 1
[0036] As Figure 1 shown, a lifting tool includes a lifting beam 1, a connecting member 3, a telescopic unit, and a matching unit.
[0037] The connecting member 3 is used to connect the lifting tool to the hoisting equipment. For example, a pulley block 7 can be provided at the top end of the connecting member 3, and a lifting rope can be provided at the hoisting part of the hoisting equipment. The connection between the lifting tool and the hoisting equipment is achieved through the cooperation of the lifting rope and the pulley block 7.
[0038] Among them, the connecting member 3 can be a rod-shaped structure.
[0039] The lifting beam 1 is rotatably connected to the bottom end of the connecting member 3. The part of the lifting beam 1 for connecting with the connecting member 3 is the middle beam section along its length direction. Among them, the middle beam section refers to the part of the beam section located between the two end parts of the lifting beam 1. At this time, as Figure 1 shown, the connection mode between the connecting member 3 and the lifting beam 1 can be similar to an inverted "T" - shaped structure. Through the rotational connection between the lifting tool and the lifting beam 1, the deflection angle of the lifting beam 1 can be adjusted based on the on-site working conditions.
[0040] Among them, as Figure 1 , 2 , 4 shown, the axis of rotation for the rotational connection between the connecting member 3 and the lifting beam 1 is the rotation axis. It can be such that the connecting member 3 and the lifting beam 1 are rotatably connected through a lifting shaft 2. At this time, the axis of the lifting shaft 2 is the rotation axis, and the rotation axis is perpendicular to the length direction of the lifting beam 1.
[0041] The lifting beam 1 has multiple lifting point groups along its length direction. Among them, each lifting point group includes at least one lifting point. The lifting point refers to the point on the lifting beam 1 that can suspend the suspended item. It can be suspended through a lifting lug 53 provided on the lifting beam 1, or it can be suspended through a lifting hole opened on the lifting beam 1. Correspondingly, the point on the suspended item for cooperating with the lifting point of the lifting beam 1 to achieve suspension is the suspended point. It can be suspended through a lifting ring provided on the suspended item, or it can be suspended through a lifting hole provided on the suspended item. In fact, the connection mode between the lifting point and the suspended point can be through a steel wire rope for connection.
[0042] The telescopic unit is located on one side of the connecting member 3 along the length direction of the lifting beam 1. The two ends of the telescopic unit are respectively hinged to the lifting beam 1 and the connecting member 3, and are used to drive the lifting beam 1 and the connecting member 3 to rotate;
[0043] The cooperating unit is located on the other side of the connecting member 3 along the length direction of the hanging beam 1. The cooperating unit is connected to the hanging beam 1. Among them, the distance of the cooperating unit from the rotation axis is determined based on the pressure exerted by the telescopic unit on the hanging beam 1, the point where the telescopic unit is hinged to the hanging beam 1, and the weight of the cooperating unit itself, so that the torques of the cooperating unit and the telescopic unit relative to the rotation axis are relatively balanced.
[0044] By arranging multiple hanging point groups at intervals along the length direction of the hanging beam 1 on the hanging beam 1, the hanging beam 1 can have multiple suspension methods and can be adapted to suspended items with different specifications. For example, when the suspended item is a long and narrow precast member, the hanging points at both ends of the hanging beam 1 can be connected to the two hanging points at both ends of the long and narrow precast member through steel wire ropes. Or, when the suspended item is a short and wide precast member, the four hanging points along the length direction of the hanging beam 1 can be connected to the four hanging points of the short and wide precast member through steel wire ropes. Thus, it is convenient to suspend suspended items with different specifications, and at the same time, the length of the steel wire ropes required for suspension is reduced, thereby reducing the required hoisting height, lowering the requirements for the height of the hoisting equipment, and facilitating the selection of hoisting equipment.
[0045] Considering that when the suspended item is suspended by the hanging points of different hanging point groups, the hanging beam 1 may be deflected to varying degrees, and then the suspended item may be tilted, which is not conducive to subsequent construction. Therefore, through the setting of the telescopic unit, the deflection angle of the hanging beam 1 relative to the connecting member 3 can be adjusted. When the suspended item is tilted, the deflection angle of the hanging beam 1 can be adjusted by the telescopic movement of the telescopic unit, and then the suspended item can be leveled, which is convenient for subsequent construction.
[0046] Considering that the telescopic unit itself has a certain weight, its weight may drive the entire lifting tool to deflect, affecting the leveling of the suspended item. Through the setting of the cooperating unit, and by making the cooperating unit and the telescopic unit on both sides of the connecting member 3, a certain degree of balance is achieved between the cooperating unit and the telescopic unit on both sides of the connecting member 3 along the length direction of the hanging beam 1, reducing the deflection of the lifting tool caused by the offset of the center of gravity.
[0047] In summary, this lifting tool can be adapted to suspended items with different specifications, and at the same time, the length of the steel wire ropes required for suspension is reduced, thereby reducing the required hoisting height, lowering the requirements for the height of the hoisting equipment, and facilitating the selection of hoisting equipment. At the same time, the deflection of the suspended item is reduced, and when the suspended item is tilted, the deflection angle of the hanging beam 1 can be adjusted, and then the suspended item can be leveled, which is convenient for subsequent construction.
[0048] The number of hanging points in each hanging point group can be 1, 2, 3, or even more.
[0049] In an alternative embodiment, each suspension point group includes two suspension points, and the two suspension points are symmetrically arranged relative to the suspension beam 1 along the width direction of the suspension beam 1. The two symmetrically arranged suspension points in each suspension point group can improve the load-bearing capacity of the suspended item and, at the same time, improve the stability when suspending the suspended item, making the two suspension points have a certain degree of balance on both sides along the width direction of the suspension beam 1 and reducing the skew of the lifting device.
[0050] In an alternative embodiment, as Figure 2 shown, the suspension point is provided with a suspension lug 53. The suspension of the suspended item is achieved through the suspension lug 53.
[0051] In an alternative embodiment, as Figure 2 , 3 shown, multiple suspension point groups are symmetrically arranged relative to the rotation axis. When suspending suspended items of different specifications, several symmetrically arranged suspension point groups relative to the rotation axis can be used to suspend the suspended item, thereby making the torque transmitted by the suspended item to several suspension points more balanced, maximizing the balance of the lifting device and the suspended item during the suspension process, and reducing the skew of the lifting device.
[0052] The number of the suspension point groups can be 3, 4, 5, or even more.
[0053] In an alternative embodiment, as Figure 3 shown, there are at least four groups in the suspension point group; two of the suspension point groups are the first suspension point groups 51, and the two first suspension point groups 51 are respectively located at both ends of the suspension beam 1. The opening direction of the suspension lug 53 provided at the suspension point of the first suspension point group 51 is perpendicular to the length direction of the suspension beam 1; the suspension lugs 53 of each suspension point in the first suspension point group 51 facilitate the effective suspension of the two ends of the suspended item corresponding to the length direction of the suspension beam 1. At this time, when the suspended item is a long and narrow prefabricated part, the first suspension point group 51 can perform more stable lifting of the suspended item. During this suspension process, the tension received by the suspension lug 53 is mainly distributed along the length direction of the suspension beam 1. At this time, the suspension lugs 53 of the first suspension point group 51 have higher load-bearing capacity.
[0054] The remaining multiple suspension point groups are the second suspension point groups 52. The multiple second suspension point groups 52 are arranged on the middle beam section of the suspension beam 1. The opening directions of the lifting lugs 53 arranged at the suspension points of the first suspension point group 51 are parallel to the length direction of the suspension beam 1. The lifting lugs 53 of each suspension point in the second suspension point group 52 are convenient for effectively suspending both sides of the suspended item corresponding to the width direction of the suspension beam 1. At this time, when the suspended item is a short and wide precast member, the second suspension point group 52 can perform more stable hoisting on the suspended item. During this suspension process, the tension received by the lifting lug 53 is mainly distributed along the width direction of the suspension beam 1. At this time, the lifting lugs 53 of the second suspension point group 52 have higher bearing capacity.
[0055] Thus, through the cooperation of the structures of the lifting lugs 53 in different suspension point groups, the hoisting of suspended items of different specifications can be carried out stably.
[0056] It should be noted that the above-mentioned first suspension point group 51 hoisting the long and narrow precast member and the second suspension point group 52 hoisting the short and wide precast member do not limit the functions of the first suspension point group 51 and the second suspension point group 52, but only to illustrate the beneficial effects of the first suspension point group 51 and the second suspension point group 52.
[0057] In an optional implementation manner, the rotation axis is located exactly in the middle of the suspension beam 1 along its length direction. Thus, the suspension beam 1 is relatively balanced during the suspension process, reducing the skew of the lifting appliance.
[0058] The telescopic unit can be any mechanical system that can be adjusted in length, such as a cylinder, a telescopic rod, etc.
[0059] In an optional implementation manner, as Figure 1 shown, the telescopic unit can be a hydraulic telescopic rod 4. The two ends of the hydraulic telescopic rod 4 are respectively hinged to the suspension beam 1 and the connecting member 3, and the axes of the hydraulic telescopic rod 4, the suspension beam 1 and the connecting member 3 are distributed in a triangle. By the telescopic movement of the hydraulic telescopic rod 4, the relative rotation of the suspension beam 1 and the connecting member 3 is driven, and then the skew angle of the suspension beam 1 is adjusted, and then the suspended item is leveled, which is convenient for subsequent construction.
[0060] On this basis, the matching unit can be a hydraulic power unit 6 for providing hydraulic power for the hydraulic telescopic rod 4. The hydraulic power unit at least includes a hydraulic pump. At this time, the hydraulic telescopic rod 4 and the hydraulic power unit 6 arranged on both sides of the connecting member 3 make reasonable use of the space on the suspension beam 1.
[0061] Embodiment 2
[0062] A hoisting system includes a hoisting device and a sling as described in any of the solutions of Embodiment 1; a pulley block 7 is provided at the top of the connecting member 3 of the sling; the hoisting device is connected to the pulley block 7 through a hoisting rope.
[0063] By using the corresponding sling in the hoisting system, the required hoisting height can be reduced, the requirement for the height of the hoisting device can be lowered. At the same time, during the construction process, the skew generated by the suspended item can be reduced, and when the suspended item is tilted, the skew angle of the hanging beam 1 can be adjusted, thereby leveling the suspended item and facilitating subsequent construction.
[0064] Among them, the hoisting device can be a crane. The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.
Claims
1. A sling, characterized in that: include: A hanging beam (1), wherein the hanging beam (1) has a plurality of hanging point groups along its length direction; A connecting member (3), the end of which is rotatably connected to the middle beam section of the suspension beam (1) along its length direction; a telescopic unit, the telescopic unit being located on one side of the connecting member (3) along the length direction of the hanging beam (1), and the two ends of the telescopic unit being respectively hinged to the hanging beam (1) and the connecting member (3), and being used for driving the hanging beam (1) and the connecting member (3) to rotate; A matching unit, wherein the matching unit is located on the other side of the connecting piece (3) along the length direction of the suspension beam (1), and the matching unit is connected to the suspension beam (1).
2. A sling according to claim 1, characterized in that: The suspension point group comprises two suspension points, and the two suspension points are symmetrically arranged relative to the suspension beam (1) along the width direction of the suspension beam (1).
3. A sling according to claim 2, characterized in that: The lifting point is provided with a lifting lug (53).
4. A sling according to claim 3, characterized in that: The axis of rotational connection between the connecting member (3) and the suspension beam (1) is the rotation axis, and the plurality of suspension point groups are symmetrically arranged relative to the rotation axis.
5. A sling according to claim 3, characterized in that: There are at least four groups of suspension point groups; Two of the suspension point groups are first suspension point groups (51), the two first suspension point groups (51) are respectively located at two ends of the suspension beam (1), and the opening direction of the suspension ears (53) arranged at the suspension points of the first suspension point groups (51) is perpendicular to the length direction of the suspension beam (1); The remaining plurality of the suspension point groups are second suspension point groups (52), and the plurality of the second suspension point groups (52) are arranged in the middle beam section of the suspension beam (1), and the opening direction of the suspension ears (53) arranged at the suspension points of the first suspension point group (51) is parallel to the length direction of the suspension beam (1).
6. A sling according to any one of claims 1 to 5, characterized in that: The connecting member (3) is rotatably connected to the suspension beam (1) via a suspension shaft (2), and the axis of the suspension shaft (2) is perpendicular to the length direction of the suspension beam (1).
7. A sling according to any one of claims 1 to 5, characterized in that: The axis of rotation of the connecting member (3) and the suspension beam (1) is the rotation axis, and the rotation axis is located in the middle of the suspension beam (1) along its length direction.
8. A sling according to any one of claims 1 to 5, characterized in that: The telescopic unit is a hydraulic telescopic rod (4).
9. A sling according to claim 8, characterized in that: The matching unit is a hydraulic power unit (6), and the hydraulic power unit (6) is used to provide hydraulic power for the hydraulic telescopic rod (4).
10. A hoisting system, characterized in that: Comprising a lifting device and a lifting device as described in any one of claims 1 to 9; A pulley block (7) is provided on the top of the connecting member (3) of the sling; The hoisting equipment is connected to the pulley block (7) via a hoisting rope.