Balance beam of crane travelling mechanism

By designing suspension, reinforcement, and buffer mechanisms in the crane's traveling mechanism, the deformation and wear problems of the balance beam under complex working conditions were solved, thereby improving structural stability and buffering effect, extending service life, and enhancing the crane's operational reliability.

CN224147569UActive Publication Date: 2026-04-21CHANGSHA MINGYANG MASCH MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGSHA MINGYANG MASCH MFG CO LTD
Filing Date
2025-05-26
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

The balance beam of the existing crane traveling mechanism is prone to deformation and cracking under complex working conditions, and lacks a buffer mechanism, resulting in reduced structural strength and increased wear, which affects the stability and safety of the crane.

Method used

A balance beam comprising suspension, reinforcement, and buffering mechanisms was designed. The suspension mechanism achieves position adjustment via handwheel and lead screw. The reinforcement mechanism forms a stable triangular structure through reinforcement rods and diagonal braces. The buffering mechanism absorbs vibration and impact through damping plates, shock absorbers, and buffer rubber pads.

Benefits of technology

It enhances the structural stability and wear resistance of the balance beam, optimizes the buffering and shock absorption performance, extends the service life of the bearings, improves the smoothness and reliability of the crane's operation, and reduces maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a balance beam of a crane travelling mechanism, which comprises the balance beam of the crane travelling mechanism, a suspension mechanism is arranged in the balance beam, the upper surface of the balance beam is fixedly connected with a reinforcing mechanism, and a buffer mechanism is fixedly arranged on the bottom surface of the balance beam. The suspension mechanism comprises hand wheels arranged at the two ends of the balance beam, the interiors of the hand wheels are fixedly connected with lead screws, the lead screws are located in the balance beam, and sliding blocks are movably installed on the surfaces of the lead screws. According to the utility model, the buffering mechanism comprises a damping plate, a shock absorber, a damping spring, a buffering rubber pad, a buffering base and the like, so that vibration and impact force generated in the travelling process of the crane can be absorbed and buffered in a multi-layer and all-directional manner. The structure of the balance beam is protected, the service life of the balance beam is prolonged, the influence of vibration on other parts of the crane is reduced, and the running stability and reliability of the crane are improved.
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Description

Technical Field

[0001] This utility model relates to the field of crane technology, specifically a balance beam for a crane traveling mechanism. Background Technology

[0002] Cranes, as important lifting equipment, are widely used in industrial production, construction, and other fields. The traveling mechanism is an important component of a crane, and the balance beam plays a crucial role in the traveling mechanism, ensuring that the crane remains stable and distributes the load evenly during travel.

[0003] The balance beams of crane traveling mechanisms currently on the market generally have the following problems:

[0004] On the one hand, because cranes often face complex working conditions such as heavy loads, vibrations, and impacts, the balance beam is prone to deformation and cracking under the long-term stress of these external forces, affecting its structural strength and service life. Once the balance beam is damaged, it will not only cause the crane to malfunction, but may also lead to safety accidents.

[0005] On the other hand, during the crane's travel, it is inevitable to encounter uneven road surfaces and other situations. At this time, the balance beam will be subjected to a large impact force. Without the protection of a buffer mechanism, these impact forces will directly act on the crane's traveling mechanism and other components, accelerating the wear of components, reducing the crane's reliability and stability, and also affecting the crane's operating comfort.

[0006] To address the above issues, this invention provides a novel balance beam design for a crane traveling mechanism, which offers improved wear resistance, lubrication, and sealing performance, thereby effectively extending the service life of the bearings and reducing maintenance costs. Utility Model Content

[0007] In view of the above-mentioned shortcomings in the existing technology, the purpose of this utility model is to provide a balance beam for a crane traveling mechanism with good wear resistance, good lubrication and good sealing.

[0008] The technical solution adopted by this utility model to achieve the above-mentioned objective is: a balance beam for a crane traveling mechanism, including a balance beam, a suspension mechanism is provided inside the balance beam, a reinforcement mechanism is fixedly connected to the upper surface of the balance beam, and a buffer mechanism is fixedly installed on the bottom surface of the balance beam. The suspension mechanism includes handwheels provided at both ends of the balance beam, and a lead screw is fixedly connected inside the handwheel.

[0009] In the above technical solution, the lead screw is located inside the balance beam, a slider is movably mounted on the surface of the lead screw, a suspension bracket is fixedly connected to both sides of the slider, and a suspension hook is fixedly connected to the lower surface of the suspension bracket.

[0010] In the above technical solution, the reinforcement mechanism includes a reinforcement rod welded to the upper surface of the balance beam, a diagonal brace fixedly connected to one side of the reinforcement rod, and the bottom end of the diagonal brace welded to the upper surface of the balance beam.

[0011] In the above technical solution, a reinforcing block is fixedly installed on the surface of the balance beam, the two ends of the reinforcing block are fixedly connected to the outer surface of the reinforcing rod, and a reinforcing crossbar is fixedly installed on the left side surface of the reinforcing rod. The internal thread of the reinforcing crossbar is connected to a reinforcing screw.

[0012] In the above technical solution, the buffer mechanism includes a damping plate fixedly installed on the lower surface of the balance beam, a stabilizing block fixedly installed on the upper surface of the damping plate, and a shock absorber fixedly connected to the bottom of the damping plate.

[0013] In the above technical solution, a damping spring is sleeved on the surface of the shock absorber, a buffer rubber pad is fixedly installed on the bottom surface of the shock absorber, and a buffer base is fixedly installed on the bottom of the buffer rubber pad.

[0014] The beneficial effects of this utility model are:

[0015] 1. Enhanced Structural Stability: The reinforcing rods, diagonal braces, reinforcing blocks, reinforcing crossbeams, and reinforcing screws in the reinforcement mechanism work together to form a stable triangular structure and pre-tensioning system, significantly enhancing the structural strength and stability of the balance beam. During crane movement and lifting of heavy objects, this effectively prevents deformation or damage to the balance beam, ensuring the safety of the entire crane system.

[0016] 2. Optimized buffering and shock absorption performance: The buffering mechanism includes components such as damping plates, shock absorbers, damping springs, buffer rubber pads, and buffer bases, which can absorb and buffer the vibration and impact forces generated during crane movement in a multi-layered and all-round manner. This not only protects the structure of the balance beam itself and extends its service life, but also reduces the impact of vibration on other components of the crane, improving the smoothness and reliability of crane operation.

[0017] In summary, the balance beam of the crane traveling mechanism of this utility model has excellent wear resistance, good lubrication performance and sealing performance, and a reasonable structural design, which can effectively improve the working efficiency and service life of the bearing and provide a strong guarantee for the long-term stable operation of the vehicle. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the balance beam of this utility model;

[0019] Figure 2 This is a three-dimensional schematic diagram of the suspension mechanism of this utility model;

[0020] Figure 3 This is a three-dimensional schematic diagram of the reinforcement mechanism of this utility model;

[0021] Figure 4 This is a three-dimensional schematic diagram of the buffer mechanism of this utility model.

[0022] In the diagram: 1. Balance beam; 2. Suspension mechanism; 21. Handwheel; 22. Lead screw; 23. Slider; 24. Suspension frame; 25. Suspension hook; 3. Reinforcing mechanism; 31. Reinforcing rod; 32. Diagonal brace; 33. Reinforcing block; 34. Reinforcing crossbar; 35. Reinforcing screw; 4. Buffer mechanism; 41. Damping plate; 42. Shock absorber; 43. Damping spring; 44. Buffer rubber pad; 45. Buffer base. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4 A balance beam for a crane traveling mechanism includes a balance beam 1, a suspension mechanism 2 inside the balance beam 1, a reinforcing mechanism 3 fixedly connected to the upper surface of the balance beam 1, and a buffer mechanism 4 fixedly installed on the bottom surface of the balance beam 1. The suspension mechanism 2 includes handwheels 21 at both ends of the balance beam 1, a lead screw 22 fixedly connected inside the handwheels 21, the lead screw 22 being located inside the balance beam 1, a slider 23 movably mounted on the surface of the lead screw 22, suspension frames 24 fixedly connected to both sides of the slider 23, and a suspension hook 25 fixedly connected to the lower surface of the suspension frame 24. In actual use, rotating the handwheels 21 can drive the lead screw 22 to rotate, thereby moving the slider 23 on the surface of the lead screw 22, and thus adjusting the position of the suspension hook 25 to meet different suspension requirements.

[0025] In the above technical solution, the reinforcement mechanism 3 includes a reinforcement rod 31 welded to the upper surface of the balance beam 1. A diagonal brace 32 is fixedly connected to one side of the reinforcement rod 31. The bottom end of the diagonal brace 32 is welded to the upper surface of the balance beam 1. A reinforcement block 33 is fixedly installed on the surface of the balance beam 1. The two ends of the reinforcement block 33 are fixedly connected to the outer surface of the reinforcement rod 31. A reinforcement crossbeam 34 is fixedly installed on the left side surface of the reinforcement rod 31. A reinforcement screw 35 is threadedly connected to the inside of the reinforcement crossbeam 34. The reinforcing rod 31 is securely fixed to the upper surface of the balance beam by welding or high-strength bolts. One end of the diagonal brace 32 is welded to one side surface of the reinforcing rod 31, and the other end is connected to the upper surface of the balance beam 1, ensuring a stable triangular structure is formed between the diagonal brace, the reinforcing rod, and the balance beam to enhance the reinforcement effect. Reinforcing blocks 33 are installed on the surface of the balance beam 1, with both ends tightly fitted to the outer surface of the reinforcing rod 31, and fixed by welding or bolting to further improve the connection strength between the reinforcing rod and the balance beam. A reinforcing crossbeam 34 is installed on the left side surface of the reinforcing rod 31, ensuring the horizontality and positional accuracy of the crossbeam. Then, a reinforcing screw 35 is threaded into the interior of the reinforcing crossbeam 34. By tightening the reinforcing screw, the reinforcing crossbeam and the entire reinforcement mechanism are pre-tightened, improving the stability of the structure.

[0026] In the above technical solution, the buffer mechanism 4 includes a damping plate 41 fixedly installed on the lower surface of the balance beam 1, a stabilizing block fixedly installed on the upper surface of the damping plate 41, a shock absorber 42 fixedly connected to the bottom of the damping plate 41, a damping spring 43 sleeved on the surface of the shock absorber 42, a buffer rubber pad 44 fixedly installed on the bottom surface of the shock absorber 42, a buffer base 45 fixedly installed on the bottom of the buffer rubber pad 44, and a stabilizing block fixedly installed on the upper surface of the damping plate 41 to enhance the stability of the damping plate 41. The shock absorber 42 and the damping spring 43 are used to absorb and buffer the vibration generated during the movement of the crane, and the buffer rubber pad 44 is used to further enhance the buffering effect and protect the structural safety of the balance beam and the crane.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims. Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This method of description is merely for clarity, and those skilled in the art should consider the specification as a whole. The technical solutions in the various embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A balance beam of a walking mechanism of a crane, comprising a balance beam (1), characterized in that: The balance beam (1) is provided with a suspension mechanism (2), the upper surface of the balance beam (1) is fixedly connected with a reinforcement mechanism (3), and a buffer mechanism (4) is fixedly installed on the bottom surface of the balance beam (1). The suspension mechanism (2) includes handwheels (21) at both ends of the balance beam (1), and a lead screw (22) is fixedly connected inside the handwheels (21).

2. A counterweight beam for a walking mechanism of a crane according to claim 1, characterized in that: The lead screw (22) is located inside the balance beam (1). A slider (23) is movably mounted on the surface of the lead screw (22). A suspension bracket (24) is fixedly connected to both sides of the slider (23). A suspension hook (25) is fixedly connected to the lower surface of the suspension bracket (24).

3. A counterweight beam for a walking mechanism of a crane according to claim 1, characterized in that: The reinforcement mechanism (3) includes a reinforcement rod (31) welded to the upper surface of the balance beam (1), and a diagonal brace (32) is fixedly connected to one side of the reinforcement rod (31). The bottom end of the diagonal brace (32) is welded to the upper surface of the balance beam (1).

4. A counterweight beam for a walking mechanism of a crane according to claim 3, characterized in that: A reinforcing block (33) is fixedly installed on the surface of the balance beam (1). The two ends of the reinforcing block (33) are fixedly connected to the outer surface of the reinforcing rod (31), and a reinforcing crossbeam (34) is fixedly installed on the left side surface of the reinforcing rod (31). A reinforcing screw (35) is threadedly connected to the inside of the reinforcing crossbeam (34).

5. A counterweight beam for a walking mechanism of a crane according to claim 1, characterized in that: The buffer mechanism (4) includes a damping plate (41) fixedly installed on the lower surface of the balance beam (1), a stabilizing block fixedly installed on the upper surface of the damping plate (41), and a shock absorber (42) fixedly connected to the bottom of the damping plate (41).

6. A counterweight beam for a walking mechanism of a crane according to claim 5, characterized in that: The surface of the shock absorber (42) is fitted with a damping spring (43), and a buffer rubber pad (44) is fixedly installed on the bottom surface of the shock absorber (42). A buffer base (45) is fixedly installed on the bottom of the buffer rubber pad (44).