Low-clearance hydraulic lifting carrying crane

Abstract

A low-clearance hydraulic lifting carrying crane effectively solves the problems that a crane is poor in flexibility and lifted goods are prone to shaking and comprises a main beam, a first supporting leg is fixed to the left end of the main beam, a plurality of first hydraulic cylinders are installed on the first supporting leg, first piston rods vertically slide on the first hydraulic cylinders, and first steel wire ropes are fixed to the first piston rods. A first fixed pulley and a second fixed pulley are installed on the main beam, the first steel wire rope sequentially passes through the first fixed pulley and the second fixed pulley, a second supporting leg is fixed to the right end of the main beam, a plurality of second hydraulic cylinders are installed on the second supporting leg, second piston rods vertically slide on the second hydraulic cylinders, and a second steel wire rope is fixed to the second piston rods. A third fixed pulley and a fourth fixed pulley are installed on the main beam, the second steel wire rope sequentially passes through the third fixed pulley and the fourth fixed pulley, and the other end of the first steel wire rope and the other end of the second steel wire rope are both located below the main beam.

Description

Technical Field

[0001] The utility model belongs to the technical field of cranes, and particularly relates to a low-headroom hydraulic lifting and handling crane. Background Art

[0002] Cranes mainly include a hoisting mechanism, a traveling mechanism, a luffing mechanism, a slewing mechanism, and a metal structure, etc. Their working characteristics are intermittent movements, that is, in a working cycle, the corresponding mechanisms for actions such as material taking, transporting, and unloading work alternately. Cranes are developing and being used more and more widely in the market. When some existing narrow workshops handle goods, they are often restricted, with poor flexibility and unable to effectively handle goods. Moreover, most existing cranes use a single hook for lifting, which is prone to shaking and has poor stability. Content of the Utility Model

[0003] In view of the above situation, to overcome the defects of the prior art, the purpose of the utility model is to provide a low-headroom hydraulic lifting and handling crane, which effectively solves the problems of poor flexibility of the crane and easy shaking of the lifted goods.

[0004] The technical solution for solving the technical problem is: It includes a main beam. A first leg is fixed at the left end of the main beam. A plurality of first hydraulic cylinders are installed on the first leg. A first piston rod slides up and down on the first hydraulic cylinder. A first steel wire rope is fixed on the first piston rod. A first fixed pulley and a second fixed pulley are installed on the main beam. The first steel wire rope passes through the first fixed pulley and the second fixed pulley in sequence. A second leg is fixed at the right end of the main beam. A plurality of second hydraulic cylinders are installed on the second leg. A second piston rod slides up and down on the second hydraulic cylinder. A second steel wire rope is fixed on the second piston rod. A third fixed pulley and a fourth fixed pulley are installed on the main beam. The second steel wire rope passes through the third fixed pulley and the fourth fixed pulley in sequence. The other ends of the first steel wire rope and the second steel wire rope are both located below the main beam.

[0005] Preferably, a plurality of traveling wheels are installed on both the first leg and the second leg.

[0006] Preferably, a first buckle is fixed on the first piston rod, and the first steel wire rope is installed on the first buckle.

[0007] Preferably, a second buckle is fixed on the second piston rod, and the second steel wire rope is installed on the second buckle.

[0008] The utility model has the following advantages compared with traditional equipment: 1) The structure is ingenious. Through the structure of the first leg, the second leg, and the traveling wheels, the crane can walk in a narrow space, with good flexibility and convenient handling; 2) The combination of the first hydraulic cylinder and the second hydraulic cylinder structures cleverly controls the lifting movements of the first steel wire rope and the second steel wire rope, realizes synchronous lifting of multiple hooks, has multiple lifting points, prevents the goods from shaking, and is safe and stable. Description of the Drawings

[0009] Figure 1 is a schematic view of the front view of the present utility model;

[0010] Figure 2 is a schematic view of the top view of the present utility model;

[0011] Figure 3 is a schematic view of the three-dimensional structure of the present utility model;

[0012] Figure 4 is Figure 2 a schematic view of the partial enlargement of A in

[0013] Figure 5 is Figure 2 a schematic view of the partial enlargement of B in.

[0014] Reference Numerals: 1, main beam; 2, first leg; 3, first hydraulic cylinder; 4, first piston rod; 5, first steel wire rope; 6, first fixed pulley; 7, second fixed pulley; 8, second leg; 9, second hydraulic cylinder; 10, second piston rod; 11, second steel wire rope; 12, third fixed pulley; 13, fourth fixed pulley; 14, traveling wheel; 15, first buckle; 16, second buckle. Detailed Description of the Preferred Embodiments

[0015] The following further describes in detail the specific embodiments of the present utility model with reference to the drawings.

[0016] As shown by Figures 1 to 5 , the low headroom hydraulic lifting and handling crane includes a main beam 1. A first leg 2 is fixed to the left end of the main beam 1. A plurality of first hydraulic cylinders 3 are installed on the first leg 2. A first piston rod 4 slides up and down on the first hydraulic cylinders 3. A first steel wire rope 5 is fixed to the first piston rod 4. A first fixed pulley 6 and a second fixed pulley 7 are installed on the main beam 1. The first steel wire rope 5 passes through the first fixed pulley 6 and the second fixed pulley 7 in sequence. A second leg 8 is fixed to the right end of the main beam 1. A plurality of second hydraulic cylinders 9 are installed on the second leg 8. A second piston rod 10 slides up and down on the second hydraulic cylinders 9. A second steel wire rope 11 is fixed to the second piston rod 10. A third fixed pulley 12 and a fourth fixed pulley 13 are installed on the main beam 1. The second steel wire rope 11 passes through the third fixed pulley 12 and the fourth fixed pulley 13 in sequence. The other ends of the first steel wire rope 5 and the second steel wire rope 11 are both located below the main beam 1.

[0017] A plurality of traveling wheels 14 are installed on both the first leg 2 and the second leg 8.

[0018] In order to facilitate the fixing of the first steel wire rope 5 on the first piston rod 4, a first buckle 15 is fixed to the first piston rod 4, and the first steel wire rope 5 is installed on the first buckle 15.

[0019] To facilitate the fixing of the second steel wire rope 11 to the second piston rod 10, a second locking buckle 16 is fixed on the second piston rod 10, and the second steel wire rope 11 is installed on the second locking buckle 16.

[0020] When the utility model is in use, suitable hooks can be installed at the lower ends of the first steel wire rope 5 and the second steel wire rope 11. Under the action of the traveling wheels 14, the main beam 1 is moved to a suitable position, and it can travel in a narrow space with a wide adaptability range. The hook is installed at a suitable position of the goods, and the first hydraulic cylinder 3 and the second hydraulic cylinder 9 are started. The first hydraulic cylinder 3 drives the first piston rod 4 to move downward, and the first piston rod 4 drives the first steel wire rope 5 to move downward. Under the action of the first fixed pulley 6 and the second fixed pulley 7, the first steel wire rope 5 slides leftward on the main beam 1, and the lower end of the first steel wire rope 5 drives the hook and the goods to move upward. At the same time, the second hydraulic cylinder 9 drives the second piston rod 10 to move downward, and the second piston rod 10 drives the second steel wire rope 11 to move downward. Under the action of the third fixed pulley 12 and the fourth fixed pulley 13, the second steel wire rope 11 slides rightward on the main beam 1, and the lower end of the second steel wire rope 11 drives the hook and the goods to move upward. The first steel wire rope 5 and the second steel wire rope 11 are evenly distributed, with multiple lifting points and high lifting safety, suitable for handling large-tonnage goods and having good stability.

[0021] This embodiment does not impose any formal restrictions on the shape, material, structure, etc. of the utility model. Any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the utility model all belong to the protection scope of the technical solution of the utility model.

Claims

1. Low headroom hydraulic lifting and transporting crane, characterized in that: The invention comprises a main beam (1), a first leg (2) being fixed at the left end of the main beam (1), a plurality of first hydraulic cylinders (3) being mounted on the first leg (2), a first piston rod (4) being slidable up and down in the first hydraulic cylinder (3), a first steel wire rope (5) being fixed on the first piston rod (4), a first fixed pulley (6) and a second fixed pulley (7) being mounted on the main beam (1), the first steel wire rope (5) passing through the first fixed pulley (6) and the second fixed pulley (7) in sequence, a second leg (8) being fixed at the right end of the main beam (1), and a first piston rod (4) being mounted on the first hydraulic cylinder (3). A plurality of second hydraulic cylinders (9) are mounted on the two legs (8), a second piston rod (10) is slidably mounted on the second hydraulic cylinder (9), a second steel wire rope (11) is fixed to the second piston rod (10), a third fixed pulley (12) and a fourth fixed pulley (13) are mounted on the main beam (1), the second steel wire rope (11) passes through the third fixed pulley (12) and the fourth fixed pulley (13) in sequence, and the other end of the first steel wire rope (5) and the other end of the second steel wire rope (11) are both located below the main beam (1).

2. The low-headroom hydraulic lifting and transporting crane according to claim 1, characterized in that: The first supporting leg (2) and the second supporting leg (8) are both equipped with a plurality of running wheels (14).

3. The low-headroom hydraulic lifting and transporting crane according to claim 1, characterized in that: A first lock buckle (15) is fixed on the first piston rod (4), and the first steel wire rope (5) is installed on the first lock buckle (15).

4. The low-headroom hydraulic lifting and transporting crane according to claim 1, characterized in that: A second lock buckle (16) is fixed on the second piston rod (10), and the second steel wire rope (11) is installed on the second lock buckle (16).

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