Lifting balance beam for double-crane lifting
By designing a lifting balance beam for dual-machine lifting, the problems of asynchronous crane operation and horizontal forces on the lifted load were solved, thereby improving the stability and safety of the equipment and avoiding equipment damage and construction safety hazards.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA CHEM ENG SECOND CONSTR
- Filing Date
- 2025-04-30
- Publication Date
- 2026-04-28
AI Technical Summary
When hoisting heavy equipment, existing technologies often result in two cranes hoisting at the same time but becoming out of sync, leading to equipment deformation and damage. Furthermore, when the hoisting capacity of a single crane is insufficient, the load is affected by horizontal forces, posing a safety hazard.
Design a lifting balance beam for dual-machine lifting, adopting a box beam structure, setting symmetrical wire rope hanging points and lifting points, improving rigidity through limit plates and reinforcing ribs, rationally distributing loads, reducing horizontal pressure, and ensuring equipment stability.
It effectively reduces horizontal pressure during equipment lifting, improves lifting stability and safety, avoids equipment damage, shortens sling height, and enhances construction safety.
Smart Images
Figure CN224172305U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of equipment hoisting technology, specifically a hoisting balance beam for dual-machine lifting. Background Technology
[0002] With industrial development, the weight of various equipment is increasing, and the requirements for hoisting are becoming more stringent. Sometimes, due to factors such as the hoisting environment, crane conditions, or economic factors, some equipment is hoisted using two cranes or two overhead cranes for synchronous hoisting. However, in the actual hoisting process, it is very easy for the two hoisting devices to become out of sync, which can lead to serious accidents such as crane tipping over, deformation of the hoisted object, tipping over, or collision.
[0003] Furthermore, during hoisting operations within the existing factory buildings, the lifting capacity of a single overhead crane is insufficient. If two overhead cranes are used for lifting, the crane hooks cannot be perfectly aligned with the center of the hoisting point. Especially during the hoisting process, due to asynchronous crane operation and swaying of the hoisted object, one crane is prone to overloading. Moreover, because the wire rope is not perpendicular to the hoisting point, the hoisted object will be subjected to a certain horizontal force. In cases where the equipment is particularly heavy, this horizontal force may cause deformation or damage to the hoisted object, ultimately resulting in serious economic losses. Summary of the Invention
[0004] The purpose of this utility model is to solve the problems existing in the prior art and to provide a lifting balance beam for dual-machine lifting.
[0005] This utility model is achieved through the following technical solution:
[0006] A lifting balance beam for dual-machine lifting includes a crossbeam body. A middle section wire rope attachment point is fixed at the middle position of the top of the crossbeam body. Left and right wire rope attachment points are fixed on both sides of the middle section wire rope attachment point at the top of the crossbeam body, respectively. Left and right gantry crane lifting points are fixed at the two ends of the top of the crossbeam body, respectively. The left and right wire rope attachment points, as well as the left and right gantry crane lifting points, are symmetrically arranged with respect to the midpoint of the crossbeam body.
[0007] Furthermore, the middle section of the wire rope hanging point includes two first limiting plates on the left and right. Both first limiting plates are vertically fixed to the top surface of the crossbeam and are symmetrically arranged with respect to the midpoint of the crossbeam.
[0008] Furthermore, the left and right wire rope hanging points have the same structure, including two second limiting plates, one on the left and one on the right. Both second limiting plates are vertically fixed to the top surface of the crossbeam. A horizontal support plate is fixed between the lower parts of the two second limiting plates, and a vertical support plate is vertically fixed between the bottom of the horizontal support plate and the top surface of the crossbeam.
[0009] Furthermore, the left and right crane lifting points have the same structure, including two third limiting plates, one in front and one in back. Both third limiting plates are vertically fixed to the top surface of the crossbeam. The two third limiting plates are symmetrically arranged with respect to the center line of the crossbeam in the left and right directions. Each third limiting plate has two pin holes, one on the left and one on the right, at the top, and a positioning pin is inserted into the pin hole.
[0010] Furthermore, the crossbeam adopts a box-beam structure with internal reinforcing ribs.
[0011] Furthermore, a reinforcing rib is fixed between the first limiting plate and the top surface of the crossbeam.
[0012] Furthermore, a reinforcing rib is fixed between the second limiting plate and the top surface of the crossbeam.
[0013] Furthermore, a reinforcing rib is fixed between the third limiting plate and the top surface of the crossbeam.
[0014] Furthermore, a downward protrusion is provided at the middle position of the bottom of the crossbeam.
[0015] Furthermore, the left and right sides of the convex portion are smoothly connected to the bottom surface of the crossbeam via inclined surfaces.
[0016] This utility model's lifting balance beam features a scientific design, reasonable structure, simple manufacturing, and convenient use. It can rationally distribute and balance the load at each lifting point, thereby reducing the horizontal pressure on the equipment during lifting, ensuring its stability, preventing damage, and effectively protecting the equipment. Simultaneously, it can shorten the height of the slings and reduce the lifting height of the pulleys, thus improving the safety of lifting operations. Attached Figure Description
[0017] The accompanying drawings are provided to further illustrate the present invention and form part of this application. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention.
[0018] Figure 1 This is a front view of the present invention.
[0019] Figure 2 This is a cross-sectional view of the present invention.
[0020] Figure 3 for Figure 1 Sectional view of AA.
[0021] Figure 4 This is a schematic diagram illustrating the method of hoisting objects using a mid-section lifting point, as described in this utility model.
[0022] Figure 5 This is a schematic diagram illustrating how the present invention uses two-end lifting points to hoist an object.
[0023] In the diagram: 1-Crossbeam, 2-Middle section wire rope hanging point, 3-Left side wire rope hanging point, 4-Right side wire rope hanging point, 5-Left side crane lifting point, 6-Right side crane lifting point, 7-Reinforcing rib plate, 8-Lower protruding part, 9-First limiting plate, 10-Second limiting plate, 11-Third limiting plate, 12-Reinforcing rib plate, 13-Lifted object, 14-Auxiliary hook, 15-Lifting wire rope, 16-Horizontal support plate, 17-Vertical support plate, 18-Pin hole, 19-Positioning pin, 20-Hook of crane #1, 21-Hook of crane #2. Detailed Implementation
[0024] To enable those skilled in the art to better understand this utility model, the present utility model will be further described clearly and completely below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0025] In the description of this embodiment, it should be understood that the terms "bottom", "top", "left", "right", "middle", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this embodiment and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0026] like Figures 1 to 5 As shown, this embodiment provides a lifting balance beam for dual-machine lifting, including a crossbeam 1. A middle section wire rope attachment point 2 is fixed at the middle position of the top of the crossbeam 1. A left wire rope attachment point 3 and a right wire rope attachment point 4 are fixed on both sides of the middle section wire rope attachment point 2 at the top of the crossbeam 1, respectively. A left crane lifting point 5 and a right crane lifting point 6 are fixed at the two ends of the top of the crossbeam 1, respectively. The left wire rope attachment point 3 and the right wire rope attachment point 4, as well as the left crane lifting point 5 and the right crane lifting point 6, are all symmetrically arranged with respect to the midpoint of the crossbeam 1.
[0027] The crossbeam 1 adopts a box girder structure with internal reinforcing ribs 7. The structural design of the box girder structure with reinforcing ribs 7 greatly improves the rigidity and strength of the crossbeam 1, ensuring the stability and safety of hoisting. A downward protruding part 8 is provided at the middle of the bottom of the crossbeam 1. The left and right sides of the downward protruding part 8 are smoothly connected to the bottom surface of the crossbeam 1 by inclined surfaces. The downward protruding part 8 at the bottom of the crossbeam 1 smoothly shifts the center of gravity of the entire crossbeam 1 downward, making it more stable during hoisting.
[0028] The middle section wire rope suspension point 2 includes two first limiting plates 9 on the left and right. Both first limiting plates 9 are vertically and fixedly connected to the top surface of the crossbeam 1. Reinforcing ribs 12 are fixed between the two first limiting plates 9 and the top surface of the crossbeam 1. The two first limiting plates 9 are symmetrically arranged at the midpoint of the crossbeam 1. The two first limiting plates 9 on the left and right form the middle section wire rope suspension point 2. When the object 13 is hoisted using the middle section suspension point method, an auxiliary hook 14 is provided. The auxiliary hook 14 is first connected between the two first limiting plates 9 at the middle section wire rope suspension point 2 by a steel cable. Then, the auxiliary hook 14 is simultaneously connected to the hoisting wire ropes 15 connected to the left and right sides of the object 13. Finally, the hoisting construction can be carried out.
[0029] The left wire rope hanging point 3 and the right wire rope hanging point 4 have the same structure, including two first limiting plates 10 on the left and right. Both first limiting plates 10 are vertically fixed to the top surface of the crossbeam 1. Reinforcing ribs 12 are fixed between the two first limiting plates 10 and the top surface of the crossbeam 1. A horizontal support plate 16 is fixed between the lower parts of the two first limiting plates 10. A vertical support plate 17 is vertically fixed between the bottom of the horizontal support plate 16 and the top surface of the crossbeam 1. The setting of the horizontal support plate 16 and the vertical support plate 17 makes the rigidity and strength of the two first limiting plates 10 higher. The left wire rope attachment point 3 and the right wire rope attachment point 4 are used to lift the object 13 using the two-end lifting points. The lifting wire rope 15 connected to the left side of the object 13 is clamped on the horizontal support plate 16 between the two first limit plates 10 of the left wire rope attachment point 3, and the lifting wire rope 15 connected to the right side of the object 13 is clamped on the horizontal support plate 16 between the two first limit plates 10 of the right wire rope attachment point 4. Finally, the lifting construction can be carried out.
[0030] The left crane lifting point 5 and the right crane lifting point 6 have the same structure, including two third limiting plates 11, one in front and one in back. Both third limiting plates 11 are vertically fixed to the top surface of the crossbeam 1. Reinforcing ribs 12 are fixed between the two third limiting plates 11 and the top surface of the crossbeam 1. The two third limiting plates 11 are symmetrically arranged about the center line of the crossbeam 1 in the left and right directions. Each third limiting plate 11 has two pin holes 18 on the upper part, one on the left and one on the right. A positioning pin 19 is inserted into the pin hole 18. Two overhead cranes are used to lift the crossbeam 1. The hook 20 of the first overhead crane is positioned between the two third limit plates 11 of the lifting point 5 of the left overhead crane, and the hook 20 of the first overhead crane is fixed in place by the two positioning pins 19 on the lifting point 5 of the left overhead crane. The hook 21 of the second overhead crane is positioned between the two third limit plates 11 of the lifting point 6 of the right overhead crane, and the hook 21 of the second overhead crane is fixed in place by the two positioning pins 19 on the lifting point 6 of the right overhead crane. Finally, the two overhead cranes lift the crossbeam 1 simultaneously.
[0031] In practical implementation, the length of the hoisting balance beam of this utility model can be adjusted according to the hoisting needs and the weight of the object 13 being hoisted, as long as the dimensions meet the requirements for hoisting strength and rigidity. The hoisting balance beam can be made of materials such as steel, stainless steel, aluminum, copper, and alloy steel, which are convenient for material sourcing and manufacturing.
[0032] The embodiments described above only illustrate the preferred implementation of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.
Claims
1. A lifting balance beam for dual-machine lifting, characterized in that: The system includes a crossbeam, with a middle section wire rope attachment point fixed at the top center of the crossbeam; left and right wire rope attachment points are fixed on either side of the middle section wire rope attachment point at the top of the crossbeam; left and right crane lifting points are fixed at the two ends of the top of the crossbeam; the left and right wire rope attachment points, as well as the left and right crane lifting points, are symmetrically arranged with respect to the midpoint of the crossbeam.
2. The lifting balance beam for dual-machine lifting according to claim 1, characterized in that: The middle section of the wire rope hanging point includes two first limiting plates on the left and right. Both first limiting plates are vertically fixed to the top surface of the crossbeam and are symmetrically arranged with respect to the midpoint of the crossbeam.
3. The lifting balance beam for dual-machine lifting according to claim 1, characterized in that: The left and right wire rope hanging points have the same structure, including two second limiting plates, one on the left and one on the right. Both second limiting plates are vertically fixed to the top surface of the crossbeam. A horizontal support plate is fixed between the lower parts of the two second limiting plates, and a vertical support plate is vertically fixed between the bottom of the horizontal support plate and the top surface of the crossbeam.
4. The lifting balance beam for dual-machine lifting according to claim 1, characterized in that: The left and right crane lifting points have the same structure, including two third limiting plates, one in front and one in back. Both third limiting plates are vertically fixed to the top surface of the crossbeam. The two third limiting plates are symmetrically arranged with respect to the center line of the crossbeam in the left and right directions. Each third limiting plate has two pin holes, one on the left and one on the right, on its upper part, and a positioning pin is inserted into the pin hole.
5. The lifting balance beam for dual-machine lifting according to claim 1, characterized in that: The crossbeam adopts a box-type beam structure, and its interior is equipped with reinforcing ribs.
6. The lifting balance beam for dual-machine lifting according to claim 2, characterized in that: A reinforcing rib is fixed between the first limiting plate and the top surface of the crossbeam.
7. The lifting balance beam for dual-machine lifting according to claim 3, characterized in that: A reinforcing rib is fixed between the second limiting plate and the top surface of the crossbeam.
8. The lifting balance beam for dual-machine lifting according to claim 4, characterized in that: A reinforcing rib is fixed between the third limiting plate and the top surface of the crossbeam.
9. The lifting balance beam for dual-machine lifting according to claim 5, characterized in that: A downward protrusion is provided at the middle position of the bottom of the crossbeam.
10. The lifting balance beam for dual-machine lifting according to claim 9, characterized in that: The left and right sides of the convex portion are smoothly connected to the bottom surface of the crossbeam by a sloping surface.