Device and method for reducing swing degree of crane

Abstract

The invention discloses a device for reducing the swing degree of a crane, and relates to the technical field of cranes, the device comprises a bridge frame, a cart running mechanism, a trolley running mechanism, a lifting mechanism and electrical equipment, the bridge frame is composed of a main beam, an end beam, a walking board and a guardrail, the cart running mechanism is composed of a frame and a handrail, and the trolley running mechanism is composed of a lifting mechanism and a lifting mechanism. The lifting mechanism comprises a large-tonnage lifting mechanism and a small-tonnage lifting mechanism, materials move stably in the operation process of the crane, the swing degree of the materials is reduced, and the stabilizer can provide acting force with the corresponding size and opposite directions according to the movement direction and the weight of the materials in the operation process of the crane. The swing degree in the material lifting process is counteracted and slowed down, and the anti-unhooking device can completely isolate steel wire ropes of a large-tonnage lifting mechanism and a small-tonnage lifting mechanism.

Description

Technical Field

[0001] The invention relates to the technical field of cranes, and in particular to a device and a method for reducing the sway degree of a crane. Background Art

[0002] Cranes are widely used in industrial production due to their excellent maneuverability and superior lifting capacity, especially cranes with both large and small trolley structures. They can choose the appropriate large or small trolley according to the weight of the material, thereby improving work efficiency, so they are widely used. The lifting mechanism of the crane is used to realize the vertical lifting of materials and is the most important and basic mechanism of the crane. The operating mechanism realizes the horizontal transportation of materials through the operation of the crane or the lifting trolley. However, in production practice, it is found that during the operation of the materials on the spreader, due to the start, stop, acceleration or deceleration of the crane during operation, or the operation error of the moving direction, the rapid change of the moving direction will cause the lifting spreader to swing greatly, which greatly reduces the work efficiency of the crane. The swing of the material also poses a hidden danger to the material itself, the surrounding goods and the personal safety of the on-site workers. And the swing of the material causes the steel wire rope of the large tonnage lifting mechanism and the small tonnage lifting mechanism of the crane to be entangled, causing safety accidents. In addition, the upper limit length of the large and small cranes of the crane is slightly longer. When the large crane is recovered to the upper limit, there is a problem that the steel wire rope of the small crane is entangled with the steel wire rope of the large crane during the operation of the crane.

[0003] Therefore, developing a device and method for reducing the sway degree of a crane is of great significance for reducing accidental injuries, improving crane operating efficiency, and accelerating production rhythm. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a device and method for reducing the sway degree of a crane. The device has a simple layout, convenient design, and easy implementation, and has great significance in practical application.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device for reducing the sway degree of a crane, comprising a bridge frame, a trolley running mechanism, a car running mechanism, a lifting mechanism and electrical equipment, the bridge frame is composed of a main beam, an end beam, a walkway and a guardrail, the trolley running mechanism is composed of a frame and a railing, the trolley running mechanism and the lifting mechanism include a large-tonnage lifting mechanism and a small-tonnage lifting mechanism.

[0006] Preferably, the large-tonnage lifting mechanism and the small-tonnage lifting mechanism are both equipped with hooks, slings and steel ropes.

[0007] Preferably, stabilizers are installed in the large-tonnage lifting mechanism, the small-tonnage lifting mechanism and the sling.

[0008] Preferably, the stabilizer provides forces of corresponding magnitude and opposite directions according to the weight of the suspended material and the direction of movement of the material, thereby reducing the degree of swaying of the material.

[0009] Preferably, the large-tonnage lifting mechanism, the small-tonnage lifting mechanism and the sling are equipped with anti-unhooking devices to separate the steel wire ropes of the large-tonnage lifting mechanism and the small-tonnage lifting mechanism to prevent them from being entangled with each other during operation.

[0010] Preferably, the upper limit length of the steel wire rope of the large-tonnage lifting mechanism and the small-tonnage lifting mechanism is 700 mm.

[0011] Preferably, the crane can significantly reduce the degree of material swaying during the process of lifting materials, avoid accidents, and improve the working efficiency of the crane.

[0012] A method for reducing the sway degree of a crane comprises the following steps:

[0013] S1: When the crane is lifting materials weighing no more than 10 tons, the small-tonnage lifting mechanism is used for lifting operations, and the large-tonnage lifting mechanism is at the upper limit position at this time to avoid the entanglement of the wire ropes of the large-tonnage lifting mechanism and the small-tonnage lifting mechanism;

[0014] S2: When the crane is lifting materials weighing more than 10 tons but not more than 25 tons, the large-tonnage lifting mechanism is used for lifting operations, and the small-tonnage lifting mechanism is at the upper limit position at this time to avoid the entanglement of the wire ropes of the large-tonnage lifting mechanism and the small-tonnage lifting mechanism. Stabilizers are installed inside the lifting devices of the large-tonnage lifting mechanism and the small-tonnage lifting mechanism;

[0015] S3: During the movement of the crane, especially when the trolley operating mechanism is moving, when the stabilizer detects that the material is swinging sharply, it provides a force of corresponding magnitude and opposite direction according to the weight of the hoisted material and the direction of material movement, thereby reducing the degree of material swing and avoiding potential safety accidents. The present invention significantly reduces the degree of crane swing during the process of lifting materials and improves the working efficiency of the crane.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The crane of the present invention can move materials smoothly during operation and reduce the swaying degree of materials. The stabilizer can provide a force of corresponding size and opposite direction according to the movement direction and weight of materials during operation of the crane, so as to offset and reduce the swaying degree of materials during lifting. The anti-unhooking device can completely isolate the steel wire ropes of the large-tonnage lifting mechanism and the small-tonnage lifting mechanism, and the upper limit length of the lifting mechanism is slightly shorter than that of the conventional crane, so as to avoid the steel wire ropes of the large-tonnage lifting mechanism and the small-tonnage lifting mechanism of the crane from being entangled with each other during operation due to the swaying of materials, and solves the problem of large swaying amplitude of materials in the process of lifting materials by conventional cranes, effectively improves the operation efficiency of the crane, and avoids the occurrence of potential safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view of the present invention;

[0019] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0020] Figure 3 It is a partial display diagram of the anti-unhooking device of the present invention.

[0021] Numbers in the figure: 1. Bridge; 2. Carriage running mechanism; 3. Trolley running mechanism; 4. Lifting mechanism; 5. Electrical equipment; 4-1. Large-tonnage lifting mechanism; 4-2. Small-tonnage lifting mechanism; 4-3. Hook; 4-4. Lifting gear; 4-5. Wire rope; 4-7. Stabilizer; 4-8. Anti-unhooking device. DETAILED DESCRIPTION

[0022] See also Figures 1-3 The present invention provides a technical solution: a device for reducing the swing degree of a crane, comprising a bridge frame 1, a trolley running mechanism 2, a trolley running mechanism 3, a lifting mechanism 4 and an electrical device 5, wherein the bridge frame 1 is composed of a main beam, an end beam, a walkway and a guardrail, the trolley running mechanism 2 is composed of a frame and a railing, the trolley running mechanism 3, and the lifting mechanism 4 includes a large-tonnage lifting mechanism 4-1 and a small-tonnage lifting mechanism 4-2, and the large-tonnage lifting mechanism 4-1 and the small-tonnage lifting mechanism 4-2 are both equipped with a hook 4-3, a sling 4-4 ​​and a wire rope 4-5, and the large-tonnage lifting mechanism 4-1, the small-tonnage lifting mechanism 4-2 and the sling 4-4 ​​are equipped with a stabilizer 4-7;

[0023] The stabilizer 4-7 provides a force of corresponding magnitude and opposite direction according to the weight of the hoisted material and the direction of material movement to reduce the degree of material swaying. The large-tonnage lifting mechanism 4-1, the small-tonnage lifting mechanism 4-2 and the sling 4-4 ​​are equipped with an anti-unhooking device 4-8 to separate the steel wire ropes 4-5 of the large-tonnage lifting mechanism 4-1 and the small-tonnage lifting mechanism 4-2 to avoid mutual entanglement during operation. The upper limit length of the steel wire ropes 4-5 of the large-tonnage lifting mechanism 4-1 and the small-tonnage lifting mechanism 4-2 is 700mm. The crane can significantly reduce the degree of material swaying during the process of lifting materials, avoid accidents and improve the working efficiency of the crane.

[0024] A method for reducing the sway degree of a crane comprises the following steps:

[0025] S1: When the crane is lifting materials weighing no more than 10 tons, the small-tonnage lifting mechanism 4-2 is used for lifting operations, and the large-tonnage lifting mechanism 4-1 is at the upper limit position at this time to prevent the steel wire rope 4-5 of the large-tonnage lifting mechanism 4-1 from being entangled with the small-tonnage lifting mechanism 4-2;

[0026] S2: When the crane is lifting materials weighing more than 10 tons but not more than 25 tons, the large-tonnage lifting mechanism 4-1 is used for lifting operations, and the small-tonnage lifting mechanism 4-2 is at the upper limit position at this time to prevent the steel wire rope 4-5 of the large-tonnage lifting mechanism 4-1 from being entangled with the small-tonnage lifting mechanism 4-2, and the slings 4-4 of the large-tonnage lifting mechanism 4-1 and the small-tonnage lifting mechanism 4-2 are both equipped with stabilizers 4-7;

[0027] S3: During the movement of the crane, especially when the trolley operating mechanism 2 is moving, when the stabilizer 4-7 detects that the material is swinging sharply, it provides a force of corresponding magnitude and opposite direction according to the weight of the hoisted material and the direction of movement of the material, thereby reducing the degree of material swing and avoiding potential safety accidents. The present invention significantly reduces the degree of crane swing during the process of lifting materials and improves the working efficiency of the crane.

[0028] Working principle: When the crane is lifting materials weighing no more than 10 tons, the small-tonnage lifting mechanism 4-2 is used for lifting operations, and the large-tonnage lifting mechanism 4-1 is at the upper limit position at this time to avoid the large-tonnage lifting mechanism 4-1 and the small-tonnage lifting mechanism 4-2 The wire rope 4-5 is entangled. When the crane is lifting materials weighing more than 10 tons but not more than 25 tons, the large-tonnage lifting mechanism 4-1 is used for lifting operations, and the small-tonnage lifting mechanism 4-2 is at the upper limit position at this time to avoid the large-tonnage lifting mechanism 4-1 and the small-tonnage lifting mechanism 4- 2, and the hangers 4-4 of the large-tonnage lifting mechanism 4-1 and the small-tonnage lifting mechanism 4-2 are both equipped with stabilizers 4-7. During the movement of the crane, especially when the trolley running mechanism 2 moves, when the stabilizer 4-7 detects that the material sways greatly, it provides a force of corresponding size and opposite direction according to the weight of the hoisted material and the direction of material movement, so as to reduce the degree of material sway and avoid potential safety accidents. The present invention significantly reduces the degree of sway of the crane in the process of lifting materials and improves the working efficiency of the crane.

Claims

1. A device for reducing the sway degree of a crane, comprising a bridge (1), a trolley running mechanism (2), a trolley running mechanism (3), a lifting mechanism (4) and electrical equipment (5), characterized in that: The bridge frame (1) is composed of a main beam, an end beam, a walkway, and a guardrail; the trolley running mechanism (2) is composed of a frame and a guardrail; the trolley running mechanism (3) and the lifting mechanism (4) include a large-tonnage lifting mechanism (4-1) and a small-tonnage lifting mechanism (4-2).

2. A device for reducing the sway of a crane according to claim 1, characterized in that: The large-tonnage lifting mechanism (4-1) and the small-tonnage lifting mechanism (4-2) are both equipped with a hook (4-3), a lifting device (4-4) and a steel wire rope (4-5).

3. The device for reducing the sway degree of a crane according to claim 1, characterized in that: The large-tonnage lifting mechanism (4-1), the small-tonnage lifting mechanism (4-2) and the sling (4-4) are equipped with stabilizers (4-7).

4. The device for reducing the sway degree of a crane according to claim 3, characterized in that: The stabilizer (4-7) provides a force of corresponding magnitude and opposite direction according to the weight of the suspended material and the direction of movement of the material, thereby reducing the degree of swaying of the material.

5. The device for reducing the sway degree of a crane according to claim 1, characterized in that: The large-tonnage lifting mechanism (4-1), the small-tonnage lifting mechanism (4-2) and the sling (4-4) are equipped with an anti-unhooking device (4-8) to separate the steel wire ropes (4-5) of the large-tonnage lifting mechanism (4-1) and the small-tonnage lifting mechanism (4-2) to prevent the two from being entangled with each other during operation.

6. The device for reducing the sway degree of a crane according to claim 1, characterized in that: The upper limit length of the steel wire rope (4-5) of the large-tonnage lifting mechanism (4-1) and the small-tonnage lifting mechanism (4-2) is 700 mm.

7. The device for reducing the sway degree of a crane according to claim 1, characterized in that: The crane can significantly reduce the degree of material swaying during the process of lifting materials, avoid accidents, and improve the working efficiency of the crane.

8. A method for reducing the sway degree of a crane according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1: When the crane is lifting materials weighing no more than 10 tons, the small-tonnage lifting mechanism (4-2) is used for lifting operations, and the large-tonnage lifting mechanism (4-1) is at the upper limit position at this time to prevent the steel wire rope (4-5) of the large-tonnage lifting mechanism (4-1) from being entangled with the small-tonnage lifting mechanism (4-2); S2: When the crane is lifting materials weighing more than 10 tons but not more than 25 tons, the large-tonnage lifting mechanism (4-1) is used for lifting operations, and the small-tonnage lifting mechanism (4-2) is at the upper limit position at this time to prevent the steel wire ropes (4-5) of the large-tonnage lifting mechanism (4-1) and the small-tonnage lifting mechanism (4-2) from being entangled, and the slings (4-4) of the large-tonnage lifting mechanism (4-1) and the small-tonnage lifting mechanism (4-2) are both installed with stabilizers (4-7); S3: During the movement of the crane, especially when the trolley operating mechanism (2) is moving, when the stabilizer (4-7) detects that the material is swinging significantly, it provides a force of corresponding magnitude and opposite direction according to the weight of the hoisted material and the direction of movement of the material, thereby reducing the degree of material swing and avoiding potential safety accidents. The present invention significantly reduces the degree of crane swing during the process of lifting materials and improves the working efficiency of the crane.

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