High-stability crane
By designing a composite beam structure and auxiliary devices, the problem of torsional deformation of the crane when the load deviates from the center was solved, achieving high stability and precise load lifting, and improving safety and operational accuracy.
Patent Information
- Application Number
- CN202520574847.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-31
AI Technical Summary
Traditional cranes have insufficient structural stability, especially when the load deviates from the center, they are prone to torsion and deformation, and lack active stabilization devices, making it difficult to quickly adjust their posture in emergency situations, resulting in a decrease in operational accuracy and safety.
The composite beam structure (main beam reinforced with side beams and triangular support components) is adopted to enhance rigidity. The auxiliary device uses multiple independent motors to control the auxiliary cable to apply reverse tension when the load swings, suppressing lateral swaying. The servo motor drives the pulley block to achieve precise and stable load lifting and lowering.
It improves the structural stability of the crane, reduces flexural deformation under load, and enhances safety and operational accuracy in high-risk environments.
Smart Images
Figure CN223836986U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of crane technology, and more specifically to a high-stability crane. Background Technology
[0002] Traditional cranes generally suffer from insufficient structural stability in practical use, mainly in the following aspects: Conventional cranes often use a single-beam structure for their main beam, which is prone to bending deformation under heavy loads. Especially when the load deviates from the center position, the main beam will experience significant torsional deformation, severely affecting operational accuracy and safety. Most ordinary cranes lack active stabilization devices, making it impossible to quickly adjust their posture in the event of emergencies (such as strong winds or collisions). Although some high-end cranes are equipped with stabilization devices, these are often complex in structure and expensive, hindering widespread application. Utility Model Content
[0003] The purpose of this utility model is to provide a highly stable crane in order to solve the above-mentioned technical problems.
[0004] To achieve the above objectives, this utility model specifically adopts the following technical solution:
[0005] A high-stability crane includes a main beam, reinforcing side beams, support members, a lifting assembly, a secondary beam, and auxiliary devices. The reinforcing side beams are installed on the side ends of the main beam along its length. The support members are welded to the side of the main beam and support the reinforcing side beams at their top ends. The side ends of the main beam are provided with side beams for moving the lifting assembly. The lifting assembly is provided with traveling wheels, and the side beams are provided with wheel rails. The traveling wheels roll along the wheel rails. The bottom end of the secondary beam is locked onto the main beam, and several auxiliary devices are installed on the secondary beam.
[0006] The main and secondary beams are made of Q345B steel (yield strength ≥345MPa). The main beam, as the core load-bearing component, is reinforced with side beams that are welded or bolted together to enhance its lateral bending resistance and prevent torsional deformation under load. Welded to the sides of the main beam and supported at the top, these side beams form a triangular stable structure to distribute stress. QU80 crane-specific rails can be used, with flanged wheels and horizontal guide wheels to prevent derailment. When the secondary beams are bolted to the main beams, high-strength bolts (such as grade 10.9) can be used with pre-tightening to prevent loosening.
[0007] A preferred technical solution: Two auxiliary devices are installed on a single secondary beam, and a total of two secondary beams are installed on the main beam, located at the two ends of the main beam.
[0008] A preferred technical solution: The lifting assembly includes a frame, a servo motor, a sheave, a fixed pulley, a movable pulley, a sling, and a lifting hook. The servo motor is installed on the frame, and the output end of the servo motor is equipped with a sheave. The sling is wound around the sheave and passes through the fixed pulley and the movable pulley. The movable pulley is installed at the top of the lifting hook.
[0009] Fixed pulleys are fixed to the frame and used to change the direction of the slings; movable pulleys move with the lifting hook to form a labor-saving pulley block; slings: the core load-bearing component, can be steel wire rope (wear-resistant) or synthetic fiber slings (corrosion-resistant, suitable for precision lifting).
[0010] A preferred technical solution: The auxiliary device includes an auxiliary motor, a drive wheel, a driven wheel, and a wheel frame. The auxiliary motor is installed on the side of the wheel frame, and the drive wheel is installed on the output end of the auxiliary motor. The drive wheel drives the driven wheel to rotate on the wheel frame.
[0011] A preferred technical solution: The auxiliary device also includes an auxiliary cable, the fixed end of which is connected to the driven wheel, and the movable end of which is connected to the object being lifted on the hook.
[0012] A preferred technical solution: Each auxiliary device is equipped with an independent auxiliary motor.
[0013] The beneficial effects of this utility model are as follows:
[0014] 1. This utility model forms a high-rigidity frame through a composite beam structure (main beam + reinforced side beams + triangular support members), reducing flexural deformation under load. The support members decompose the vertical load into axial force, thereby reducing the local stress in the main beam.
[0015] 2. The auxiliary device in this invention controls the auxiliary cable through multiple independent motors, applying a reverse tension when the load swings to suppress lateral swaying. During outdoor operations, the active tension adjustment of the auxiliary cable effectively controls the overall machine displacement within a certain range, improving safety in high-risk environments. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a structural schematic diagram of the present invention from another angle;
[0018] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;
[0019] Figure 4 This is a schematic diagram of the structure of the object being lifted and hoisted according to this utility model;
[0020] Figure 5 This is a schematic diagram of the auxiliary device.
[0021] Reference numerals in the attached drawings: 1. Main beam; 11. Side beam; 2. Reinforcing side beam; 3. Support component; 4. Lifting assembly; 41. Traveling wheel; 42. Frame; 43. Servo motor; 44. Lifted object; 45. Lifting sling; 46. Lifting hook; 5. Secondary beam; 6. Auxiliary device; 61. Auxiliary motor; 62. Drive wheel; 63. Driven wheel; 64. Wheel frame; 65. Auxiliary cable. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0024] like Figure 1-5 As shown, this embodiment provides a high-stability crane, including a main beam 1, a reinforcing side beam 2, a support member 3, a lifting assembly 4, a secondary beam 5, and auxiliary devices 6. The reinforcing side beam 2 is installed on the side end of the main beam 1 along its length. The support member 3 is welded to the side of the main beam 1 and supports the reinforcing side beam 2 at its top. The side end of the main beam 1 is provided with a side beam 11 for the lifting assembly 4 to move. The lifting assembly 4 is provided with a traveling wheel 41, and the side beam 11 is provided with a wheel rail. The traveling wheel 41 rolls along the wheel rail. The bottom end of the secondary beam 5 is locked onto the main beam 1, and several auxiliary devices 6 are installed on the secondary beam 5.
[0025] Furthermore, two auxiliary devices 6 are installed on each secondary beam 5, and a total of two secondary beams 5 are installed on the main beam 1, located at the two ends of the main beam 1.
[0026] Furthermore, the lifting assembly 4 includes a frame 42, a servo motor 43, a sheave, a fixed pulley, a movable pulley, a sling 45, and a lifting hook 46. The servo motor 43 is mounted on the frame 42. The output end of the servo motor 43 is equipped with a sheave. The sling 45 is wound around the sheave and passes through the fixed pulley and the movable pulley. The movable pulley is installed at the top of the lifting hook 46.
[0027] The fixed pulley is fixed on the frame 42 and is used to change the direction of the sling 45; the movable pulley moves with the lifting hook 46 to form a labor-saving pulley block; sling 45: the core load-bearing component, can be made of steel wire rope (wear-resistant) or synthetic fiber sling (corrosion-resistant, suitable for precision lifting).
[0028] Furthermore, the auxiliary device 6 includes an auxiliary motor 61, a drive wheel 62, a driven wheel 63, and a wheel frame 64. The auxiliary motor 61 is mounted on the side of the wheel frame 64, and the drive wheel 62 is mounted on the output end of the auxiliary motor 61. The drive wheel 62 drives the driven wheel 63 to rotate on the wheel frame 64.
[0029] Furthermore, the auxiliary device 6 also includes an auxiliary cable 65. The fixed end of the auxiliary cable 65 is connected to the driven wheel 63, and the movable end of the auxiliary cable 65 is connected to the load 44 on the lifting hook 46. One end of the auxiliary cable 65 is fixed to the driven wheel 63 and retracts as the wheel rotates. The other end of the auxiliary cable 65 is connected to the load and works in conjunction with the main lifting cable 45. The auxiliary motor 61 drives the drive wheel 62 to rotate, indirectly and synchronously tightening the auxiliary cable 65 to prevent load swaying; the auxiliary cable 65 applies a reverse tension when the load sways, suppressing lateral swaying; during outdoor lifting operations, the auxiliary cable 65 can increase the load's wind resistance (e.g., by maintaining stability through tension control).
[0030] Furthermore, each auxiliary device 6 is equipped with an independent auxiliary motor 61.
[0031] Support component 3 is welded between the main beam 1 and the reinforcing side beam 2, decomposing the vertical load into axial force, reducing local stress in the main beam 1, and increasing the rigidity of the main beam 1 system. The lifting assembly 4 fulfills the crane's lifting requirements. The core principle of the lifting assembly 4 is to use a servo motor 43 to drive a pulley system, converting rotational motion into linear lifting motion, while utilizing the pulley system's labor-saving characteristics to achieve precise and stable load lifting. The core function of the auxiliary device 6 is to enhance the stability of the lifting process. Through the coordinated action of the auxiliary cable 65 and the independent drive wheel 62 system, it achieves anti-swaying, precise positioning, and anti-eccentric loading of the load.
Claims
1. A highly stable crane, characterized in that, The system includes a main beam, reinforcing side beams, support members, a lifting assembly, secondary beams, and auxiliary devices. The reinforcing side beams are installed on the side ends of the main beam along its length. The support members are welded to the side of the main beam and support the reinforcing side beams at their top ends. The side ends of the main beam are provided with side beams for the movement of the lifting assembly. The lifting assembly is equipped with traveling wheels, and the side beams are equipped with wheel rails. The traveling wheels roll along the wheel rails. The bottom ends of the secondary beams are locked onto the main beams, and several auxiliary devices are installed on the secondary beams.
2. The high-stability crane according to claim 1, characterized in that, Two auxiliary devices are provided on a single secondary beam, and a total of two secondary beams are provided on the main beam, located at the two ends of the main beam.
3. The high-stability crane according to claim 1, characterized in that, The lifting assembly includes a frame, a servo motor, a sheave, a fixed pulley, a movable pulley, a sling, and a lifting hook. The servo motor is mounted on the frame, and the output end of the servo motor is equipped with a sheave. The sling is wound around the sheave and passes through the fixed pulley and the movable pulley. The movable pulley is installed at the top of the lifting hook.
4. The high-stability crane according to claim 1, characterized in that, The auxiliary device includes an auxiliary motor, a drive wheel, a driven wheel, and a wheel frame. The auxiliary motor is mounted on the side of the wheel frame, and the drive wheel is mounted on the output end of the auxiliary motor. The drive wheel drives the driven wheel to rotate on the wheel frame.
5. The high-stability crane according to claim 4, characterized in that, The auxiliary device also includes an auxiliary cable, the fixed end of which is connected to the driven wheel, and the movable end of which is connected to the object being lifted on the lifting hook.
6. The high-stability crane according to claim 4, characterized in that, Each of the aforementioned auxiliary devices is equipped with an independent auxiliary motor.