Balance arm device of cross beam lifting appliance
By installing a limiting device in the counterweight boom of the beam spreader, the problem of the counterweight boom being easily entangled by the wire rope is solved, ensuring the stability and safety of the spreader during the lifting process and reducing equipment damage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-29
- Publication Date
- 2026-03-31
AI Technical Summary
The counterweight boom of existing beam spreaders is prone to getting tangled in wire ropes during use, leading to equipment damage and safety hazards.
Design a counterweight arm device for a beam lifting device, including a counterweight arm, a fixing component, and a limiting component. The fixing component is rotatably connected to the beam body, and the limiting component is set between the wire rope and the counterweight arm to limit the rotation range of the counterweight arm and prevent it from touching the wire rope when there is no tension.
It effectively prevents the counterweight boom from rotating and touching the wire rope when there is no tension, reduces entanglement and collision, improves the stability and safety of the lifting device, and extends the service life of the equipment.
Smart Images
Figure CN224062264U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of auxiliary steel transportation in steel mills, and more particularly to a counterbalance arm device for a beam lifting device. Background Technology
[0002] In lifting equipment, beam spreaders are widely used in industry, construction, and logistics for lifting and moving heavy objects. However, the stability of the counterweight boom is crucial during the use of beam spreaders, especially during lifting operations. Tilting of the counterweight boom not only affects lifting efficiency but can also lead to serious safety accidents. In existing technologies, the counterweight boom devices of beam spreaders are often tilted during wire rope laying. At this time, the wire rope may sometimes wrap around to the opposite side of the counterweight boom, easily becoming entangled during lifting, causing damage to both the wire rope and the counterweight boom, potentially leading to significant safety hazards and accidents. Therefore, this invention provides a counterweight boom device for beam spreaders to solve the technical problem of wire rope entanglement in existing beam spreader counterweight boom devices, which affects operational safety. Utility Model Content
[0003] The main purpose of this utility model is to provide a counterweight boom device for beam lifting equipment to solve the technical problem that the counterweight boom device of beam lifting equipment in the prior art is easily entangled by wire rope, which affects the safety of operation.
[0004] To achieve the above objectives, this utility model provides a counterweight arm device for a beam lifting device, comprising: a counterweight arm, a fixing component, and two limiting components.
[0005] The counterweight arm is connected to the fixing component to ensure the stability of the beam spreader during lifting.
[0006] The fixing component is located below the balance arm and includes a crossbeam body, a steel wire rope, and a fixing rod; wherein, the balance arm is rotatably connected to the crossbeam body through the fixing rod, and the steel wire rope is located on both sides of the fixing rod along the rotation direction of the balance arm and is fixed to the crossbeam body.
[0007] Both limiting members are located on the rotation path of the balance arm and are respectively set between the corresponding steel wire rope and the balance arm to prevent the balance arm from touching the steel wire rope when it rotates back and forth without tension.
[0008] In some embodiments, the limiting member is a crossbar; wherein the crossbar is located on the rotation path of the balance arm and is disposed between the corresponding wire rope and the balance arm; both ends of the crossbar are connected to the crossbeam body.
[0009] In some embodiments, the limiting member includes a horizontal bar and two vertical bars; wherein the horizontal bar is located on the rotation path of the balance arm and is disposed between the corresponding wire rope and the balance arm; the two vertical bars are respectively connected to both ends of the horizontal bar, and the other end is connected to the crossbeam body for supporting the horizontal bar.
[0010] In some embodiments, the rotation amplitude of the two crossbars on the rotation path of the balance arm is 0 to 30°.
[0011] In some embodiments, the distance between the two ends of the crossbar is greater than or equal to the width of the crossbeam body, in order to prevent the counterweight arm from rotating back and forth and touching the wire rope when there is no tension.
[0012] In some embodiments, the crossbar and vertical bar are connected in a fixed or detachable manner.
[0013] In some embodiments, the outer periphery of the crossbeam body is further provided with an air sleeve, which is located on both ends of the crossbar and below the vertical bar.
[0014] In some embodiments, the vertical rod is fixed to the crossbeam body; or the crossbeam body has holes that cooperate with the vertical rod, and the vertical rod is set on the crossbeam body by bolts.
[0015] In some embodiments, the wire ropes are arranged in two rows, respectively on both sides of the fixed rod along the rotation direction of the balance arm, and located on the crossbeam body; wherein each row has at least one wire rope.
[0016] In some embodiments, the counterweight arm includes a connecting plate that is rotatably connected to the fixed rod for normal operation of the counterweight arm of the beam spreader.
[0017] Compared with the prior art, the beneficial effects of this utility model are:
[0018] The aforementioned utility model provides a counterweight boom device for a beam lifting device. It includes a counterweight boom, a fixing member, and two limiting members. The counterweight boom is connected to the fixing member to ensure the stability of the lifting device during lifting. The fixing member is located below the counterweight boom, and the counterweight boom is rotatably connected to the beam body via a fixing rod, allowing the counterweight boom to rotate within a limited range, thereby achieving balance adjustment of the lifting device. Furthermore, two limiting members are set along the rotation path of the counterweight boom, respectively positioned between the corresponding wire rope and the counterweight boom, to prevent the counterweight boom from touching the wire rope when rotating back and forth without tension, thus reducing malfunctions and accidents caused by wire rope entanglement. This utility model has a simple design and is easy to operate, solving the technical problems in the prior art where the counterweight boom device of a beam lifting device is easily entangled by wire rope, the counterweight boom tilts during wire rope laying, and damage to the wire rope and counterweight boom affects operational safety. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0020] Figure 1 This is a front view of the counterweight arm device of the beam hanger of this utility model;
[0021] Figure 2 This is a side view of the counterweight arm device of the beam lifting device of this utility model.
[0022] The attached figures are labeled as follows: 11, counterweight arm; 12, fixing component; 13, limiting component; 21, crossbeam body; 22, wire rope; 23, fixing rod; 31, horizontal bar; 32, vertical bar; 41, air jacket; 42, connecting plate.
[0023] The implementation, functional features, and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0025] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.
[0026] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0027] This utility model provides a counterweight boom device for a beam lifting device, which solves the technical problems of the counterweight boom device of the beam lifting device being easily entangled by wire rope, and the damage to the wire rope and counterweight boom affecting the safety of operation.
[0028] See Figure 1 The front view of the counterweight boom assembly of the beam spreader shown. Figure 2 The diagram shows a side view of the counterweight arm device of the beam lifting device. The counterweight arm device of the beam lifting device of this utility model includes: a counterweight arm 11, a fixing member 12, and two limiting members 13.
[0029] The counterweight arm 11 is connected to the fixing member 12 to ensure that the beam lifting device remains stable during the lifting process.
[0030] In some implementations, the counterweight arm is connected to a fixed component, providing the main support structure to ensure the stability and strength of the beam spreader during lifting, preventing the load from tilting or swaying, and effectively improving the safety and efficiency of lifting.
[0031] The fixing component 12 is located below the counterweight arm 11 and includes a crossbeam body 21, a steel wire rope 22, and a fixing rod 23. The counterweight arm 11 is rotatably connected to the crossbeam body 21 through the fixing rod 23. The steel wire rope 22 is located on both sides of the fixing rod 23 along the rotation direction of the counterweight arm 11 and is fixed to the crossbeam body 21.
[0032] See Figure 1 In some embodiments, a fixing member is positioned below the counterweight arm and mounted on the crossbeam body, providing a stable support point for the counterweight arm. The counterweight arm is connected to the fixing member via a fixing rod, which, if rigid, secures the counterweight arm to the fixing member while allowing the counterweight arm to rotate within the range around which the crossbeam body surrounds, thereby achieving balance adjustment of the lifting device.
[0033] To determine the location of the wire rope, see [link / reference]. Figure 1 The wire ropes are positioned on both sides of the fixed rod along the rotation direction of the counterweight arm and are fixed to the crossbeam body. The wire ropes connect the crossbeam body and the load, providing the necessary tension to ensure stable lifting. The wire ropes are typically secured using wedge sleeves, bolts, or pins to prevent loosening during lifting. This design effectively distributes and balances the forces on the lifting equipment, ensuring its stability. Simultaneously, the wire ropes on both sides effectively prevent the load from tilting or swaying during lifting. This double-fixing design of the fixed rod and wire ropes ensures the robustness and reliability of the lifting equipment during lifting, reducing safety hazards caused by loose connections.
[0034] To prevent the counterweight arm from tangling with the wire rope when rotating without tension, in some embodiments, both limiting members 13 are located on the rotation path of the counterweight arm 11 and are respectively positioned between the corresponding wire rope 22 and the counterweight arm 11. By properly placing the limiting members, the rotation range of the counterweight arm on its rotation path when without tension can be effectively limited, preventing the counterweight arm 11 from rotating back and forth and touching the wire rope 22. Simultaneously, this reduces friction between the wire rope and the counterweight arm, minimizing equipment damage and safety accidents caused by collisions, and extending the service life of the equipment.
[0035] The aforementioned utility model provides a counterweight arm device for a beam lifting device. It includes a counterweight arm, a fixing member, and two limiting members. The counterweight arm is connected to the fixing member to ensure the stability of the lifting device during lifting. The fixing member is located below the counterweight arm, and the counterweight arm is rotatably connected to the beam body via a fixing rod, allowing the counterweight arm to rotate within a limited range, thereby achieving balance adjustment of the lifting device. Furthermore, two limiting members are provided along the rotation path of the counterweight arm, respectively positioned between the corresponding wire rope and the counterweight arm, to prevent the counterweight arm from touching the wire rope when rotating back and forth without tension, thus reducing malfunctions and accidents caused by wire rope entanglement.
[0036] See Figure 1 In some embodiments, the limiting member 13 is a crossbar 31; wherein, the crossbar 31 is located on the rotation path of the balance arm 11 and is disposed between the corresponding wire rope 22 and the balance arm 11; both ends of the crossbar 31 are connected to the crossbeam body 21. There are two crossbars, used to limit the rotation range of the balance arm and to support the balance arm from tipping over during wire rope laying, thus preventing the balance arm from touching the wire rope when rotating back and forth without tension, thereby reducing malfunctions and accidents caused by wire rope entanglement.
[0037] In some implementations, the stop bar is made of high-strength steel or alloy materials to ensure it can withstand various forces generated by the lifting device during operation. The two ends of the crossbar are connected to the crossbeam body by welding or by an adjustable connection. That is, holes are provided on the crossbeam body corresponding to the two ends of the crossbar. The size and shape of the holes are not specifically required, as long as they fit the crossbar. The two ends of the crossbar are fixed to the crossbeam body with bolts to ensure its firmness and stability. By adjusting the position of the bolts, the position of the crossbar can be fine-tuned to ensure that the crossbar position does not affect the normal operation of the counterweight arm while effectively limiting the rotation path of the counterweight arm.
[0038] To protect the crossbeam body from damage, in some embodiments, the limiting member 13 includes a horizontal bar 31 and two vertical bars 32; wherein, the horizontal bar 31 is located on the rotation path of the balance arm 11 and is disposed between the corresponding wire rope 22 and the balance arm 11; the two vertical bars 32 are respectively connected to both ends of the horizontal bar 31, and the other end is connected to the crossbeam body 21 to support the horizontal bar 31, so as to ensure that the balance arm has a suitable rotation range on the rotation path.
[0039] To ensure the rotation range of the counterweight boom, in some embodiments, the two crossbars 31 limit the rotation range of the counterweight boom 11 along its rotation path to 10–30°. A rotation range of 10° is suitable for applications requiring a smaller rotation range, ensuring the lifting device remains highly stable during lifting. A rotation range of 30° represents the maximum limited rotation range, suitable for applications requiring a larger rotation range, ensuring the lifting device still maintains a certain degree of flexibility during lifting.
[0040] The crossbar is used to prevent the balance arm from tipping over when there is no tension. See [link / reference] Figure 1 In some embodiments, the distance between the two ends of the crossbar 31 is greater than or equal to the width of the crossbeam body 21, in order to prevent the counterweight arm 11 from rotating back and forth and touching the wire rope 22 when there is no tension.
[0041] Because the connection method of the crossbars varies, the dimensions of the crossbars are not specifically limited. In some embodiments, the crossbars are connected to the crossbeam body, or the crossbars are supported by the vertical bars, and the vertical bars are connected to the crossbeam body. Therefore, the distance between the two ends of the crossbars is not specifically limited, but should be greater than or equal to the width of the crossbeam body, so that the balance arm does not touch the wire rope when rotating back and forth without tension, and that the rotation amplitude of the balance arm along its rotation path is 0 to 30°.
[0042] Depending on the application, there are various ways to connect the horizontal and vertical bars. In some embodiments, the horizontal bar 31 and the vertical bar 32 are connected in a fixed or detachable manner. The fixed method involves connecting the horizontal and vertical bars by welding or other non-detachable means. This method offers high stability and strength, suitable for applications where frequent disassembly is not required. The detachable connection involves connecting the horizontal and vertical bars with bolts, nuts, or other detachable fasteners. This method allows for quick installation and disassembly of the horizontal and vertical bars by adjusting the tightness of the bolts, offering high flexibility and suitable for applications requiring frequent adjustments or disassembly.
[0043] To effectively protect the crossbeam body from the influence of the external environment, in some embodiments, an air sleeve 41 is also provided on the outer periphery of the crossbeam body 21. The air sleeve 41 is located on both ends of the crossbar 31 and below the vertical bar 32. This also provides additional support and protection for the vertical bar, improving equipment safety.
[0044] The connection between the vertical rod and the crossbeam body can be selected according to actual needs. In some embodiments, the vertical rod 32 is fixed to the crossbeam body 21; or the crossbeam body 21 has holes that mate with the vertical rod 32, and the vertical rod 32 is bolted to the crossbeam body 21. Alternatively, the vertical rod can be directly fixed to the crossbeam body by welding or other non-removable methods. This is suitable for scenarios where frequent adjustment or disassembly of the vertical rod is not required, and offers high stability and strength. The vertical rod can also be connected to the crossbeam body using detachable fasteners. This is suitable for scenarios requiring frequent adjustment or disassembly, offering high flexibility and facilitating installation and disassembly.
[0045] To ensure sufficient support and stability of the wire ropes, in some embodiments, the wire ropes 22 are arranged in two rows, respectively positioned on both sides of the fixed rod 23 along the rotation direction of the counterweight arm 11, and located on the crossbeam body 21; each row has at least one wire rope 22. When the counterweight arm rotates, the wire ropes remain stable, without displacement, and provide uniform support, ensuring the stability of the lifting equipment during lifting. The wire ropes can be fixed to the crossbeam body using wedge sleeves to ensure a firm and reliable connection. Alternatively, they can be fixed to the crossbeam body using bolts and nuts, providing an adjustable fixing method for easy installation and disassembly. By rationally arranging the position of the wire ropes, it is possible to prevent the counterweight arm from rotating back and forth and touching the wire ropes when there is no tension, reducing equipment damage and safety accidents caused by collisions, and improving the safety and efficiency of lifting operations.
[0046] To enable the operation of the counterweight boom, in some embodiments, the counterweight boom 11 includes a connecting plate 42, which is rotatably connected to the fixed rod 23, for normal operation of the counterweight boom 11 of the beam spreader. The counterweight boom includes a connecting plate, which is rotatably connected to the fixed rod, for normal operation of the counterweight boom of the beam spreader, thereby achieving balance adjustment of the spreader. The connecting plate is connected to the fixed rod via a bearing, allowing the counterweight boom to rotate freely on the fixed rod, providing an adjustable connection method for easy installation and disassembly. The connecting plate also enhances the stability of the counterweight boom, ensuring the stability and safety of the spreader during lifting.
[0047] The aforementioned utility model provides a counterweight boom device for a beam lifting device. It includes a counterweight boom, a fixing member, and two limiting members. The counterweight boom is connected to the fixing member to ensure the stability of the lifting device during lifting. The fixing member is located below the counterweight boom, and the counterweight boom is rotatably connected to the beam body via a fixing rod, allowing the counterweight boom to rotate within a limited range, thereby achieving balance adjustment of the lifting device. Furthermore, two limiting members are set along the rotation path of the counterweight boom, respectively positioned between the corresponding wire rope and the counterweight boom, to prevent the counterweight boom from touching the wire rope when rotating back and forth without tension, thus reducing malfunctions and accidents caused by wire rope entanglement. This utility model has a simple design and is easy to operate, solving the technical problems in the prior art where the counterweight boom device of a beam lifting device is easily entangled by wire rope, the counterweight boom tilts during wire rope laying, and damage to the wire rope and counterweight boom affects operational safety.
[0048] The above technical solutions of this utility model are merely preferred embodiments and do not limit the patent scope of this utility model. All equivalent structural transformations made under the technical concept of this utility model using the contents of this utility model specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of this utility model.
Claims
1. A spreader beam of a spreader beam device, characterized in that, The utility model relates to a kind of beam hanger, including: Balancing arm (11), with fixed part (12) connection, for ensuring that crossbeam spreader keeps stable during hoisting process; Fixed part (12), located below the balancing arm (11), including crossbeam body (21), wire rope (22) and fixed rod (23);Wherein, the balancing arm (11) is rotatably connected with the crossbeam body (21) by the fixed rod (23), the wire rope (22) is located on both sides of fixed rod (23) along the rotating direction of the balancing arm (11), and is fixed on the crossbeam body (21); Two limiters (13) are located on the rotating path of the balancing arm (11), and are respectively arranged between the wire rope (22) and the balancing arm (11), to avoid the balancing arm (11) from rotating forward and backward to touch the wire rope (22) when there is no tension.
2. The spreader of claim 1, wherein, The limiter (13) is a horizontal rod (31);Wherein, the horizontal rod (31) is located on the rotating path of the balancing arm (11), and is arranged between the wire rope (22) and the balancing arm (11);Both ends of the horizontal rod (31) are connected with the crossbeam body (21).
3. The spreader bar apparatus of claim 1, wherein, The limiter (13) includes a horizontal rod (31) and two vertical rods (32);Wherein, the horizontal rod (31) is located on the rotating path of the balancing arm (11), and is arranged between the wire rope (22) and the balancing arm (11);The two vertical rods (32) are respectively connected with both ends of the horizontal rod (31), and the other end is connected with the crossbeam body (21), for supporting the horizontal rod (31).
4. A spreader bar apparatus according to claim 2 or claim 3, wherein, The two horizontal rods (31) limit the rotating amplitude of the balancing arm (11) on the rotating path to 0-30°.
5. A spreader bar apparatus according to claim 2 or claim 3, wherein, The distance between both ends of the horizontal rod (31) is greater than or equal to the width of the crossbeam body (21), to avoid the balancing arm (11) from rotating forward and backward to touch the wire rope (22) when there is no tension.
6. The spreader bar apparatus of claim 3, wherein, The horizontal rod (31) and the vertical rod (32) are connected by fixed or detachable mode.
7. The spreader bar apparatus of claim 3, wherein, The outer periphery of the crossbeam body (21) is further provided with an air sleeve (41), the air sleeve (41) is located on the side where both ends of the horizontal rod (31) are located, and the air sleeve (41) is located below the vertical rod (32).
8. The spreader bar apparatus of claim 3, wherein, The vertical rod (32) is fixed on the crossbeam body (21);Or the crossbeam body (21) has a hole that cooperates with the vertical rod (32), and the vertical rod (32) is arranged on the crossbeam body (21) by bolts.
9. The spreader bar apparatus of claim 1, wherein, The wire rope (22) has two rows, which are arranged on both sides of the fixed rod (23) along the rotating direction of the balancing arm (11), and are located on the crossbeam body (21);Wherein, each row has at least one wire rope (22).
10. The spreader of claim 1, wherein, The balancing arm (11) includes a connecting plate (42), which is rotatably connected with the fixed rod (23), for normal operation of the balancing arm (11) of the beam hanger.