Movable hydraulic lifting mechanism

Abstract

The invention discloses a movable hydraulic lifting mechanism which comprises at least two groups of travelling crane girders, each group of travelling crane girders comprises two travelling crane girders which are arranged in parallel, each group of travelling crane girders is provided with at least one movable carrier, and the movable carriers are in rolling connection with the travelling crane girders through rollers. Each movable carrier is provided with at least one hydraulic lifting device, the hydraulic lifting devices are connected with the balance beams through connecting pieces, and lifting hooks are arranged below the balance beams.

Description

Technical Field

[0001] The invention relates to a mobile hydraulic lifting mechanism. Background Art

[0002] With the continuous development and application of hydraulic technology, hydraulic lifting devices have been widely used in many fields such as heavy machinery, aerospace, and shipbuilding due to their advantages of large tonnage, high precision, and easy control. However, combining hydraulic technology with mobile platforms to achieve flexible handling and precise lifting of goods is a relatively new technical challenge.

[0003] As a commonly used lifting and transporting mechanism in factories, the crane has an upper lifting limit. When the lifting limit is higher than the current crane, it cannot be used. At this time, the only option is to replace the crane mechanism. However, replacing the crane mechanism is time-consuming, labor-intensive, and costly, and it is not suitable for emergencies. Therefore, a mechanism is needed to modify the original crane mechanism so that the original crane mechanism can lift objects that are higher than its own lifting limit. Summary of the invention

[0004] The purpose of the present invention is to solve the above deficiencies in the prior art and provide a mobile hydraulic lifting mechanism.

[0005] A mobile hydraulic lifting mechanism includes at least two groups of crane main beams, each group of crane main beams includes two parallel crane main beams, each group of crane main beams is provided with at least one mobile carrier, the mobile carrier is connected to the crane main beams through rollers, each mobile carrier is provided with at least one hydraulic lifting device, the hydraulic lifting device is connected to the balance beam through a connecting piece, and a hook is provided under the balance beam.

[0006] Furthermore, the connecting member is a steel cable, and the steel cable is connected to the balance beam through a driving hook head or a connecting head.

[0007] Furthermore, the mobile vehicle includes two parallel main beams, a plurality of parallel and spaced connecting cross beams are provided between the two main beams, at least two parallel and spaced connecting vertical beams are provided on the lower end surfaces of the connecting cross beams at both ends, a supporting beam is connected between the bottom ends of adjacent connecting vertical beams, a plurality of rolling assemblies are provided on the two main beams, the rolling assemblies include mounting seats and rollers, the rollers are rotatably connected to the mounting seats, the mounting seats are installed on the lower end surfaces of the main beams by bolts, and the main beams are provided with a plurality of groups of threaded holes for connecting the mounting seats.

[0008] Furthermore, the hydraulic lifting device is a hydraulic jack, which is placed on the support beam. The hydraulic jack is connected to one end of a steel cable, and the steel cable passes through the gap between the support beams.

[0009] Furthermore, the balance beam comprises a crossbeam body, both ends of the crossbeam body are provided with connecting mechanisms, and the connecting mechanisms are used to connect the driving hook head or the connecting head.

[0010] Furthermore, the connecting mechanism includes two parallel spaced lining plates and a pin shaft. The lining plates are perpendicular to the beam body. The bottom ends of the lining plates are welded to the beam body. The surfaces of the lining plates are provided with through holes, and nuts are welded in the through holes. The outer surface of the pin shaft is provided with threads, and the pin shaft is threadedly connected in the through holes of the lining plates.

[0011] Furthermore, a hand wheel is provided at one end of the pin shaft.

[0012] Furthermore, the connecting head includes a mounting plate, a connecting plate, and a connecting shaft. Both ends of the mounting plate are respectively connected to one end of a connecting plate. The connecting plate is perpendicular to the mounting plate. A through hole is provided on the surface of the connecting plate. Both ends of the connecting shaft are respectively inserted into the through holes. The connecting head is connected to the pin shaft through a hanging ear plate. A first connecting hole and a second connecting hole are provided on the surface of the hanging ear plate. The first connecting hole is connected to the connecting shaft, and the second connecting hole is connected to the pin shaft.

[0013] Beneficial effects: Compared with the prior art, the present invention has the following advantages:

[0014] Modularity and flexibility: The lifting beam and hydraulic lifting trolley adopt a modular design, especially the wheelbase of the mobile carrier is adjustable, so that it can adapt to the main beams of different widths (such as 5600mm in Changzhou to 4200mm in Binhai). This greatly improves the versatility and flexibility of the equipment and reduces the redesign and customization costs caused by site differences.

[0015] High load-bearing capacity: Both the lifting beam and the hydraulic lifting trolley are designed for high load-bearing capacity. In particular, each hydraulic lifting trolley carries a 200t hydraulic jack, which can meet the lifting needs of heavy equipment and ensure safety and stability during the lifting process.

[0016] Precise docking and hoisting: The pinned lifting points designed at both ends of the top of the lifting beam cooperate with the hydraulic lifting cable lugs to ensure precise docking during the hoisting process, improving the hoisting efficiency and accuracy. At the same time, the pin can also match the 130t hook head of the crane, further expanding the choice of hoisting methods.

[0017] Structural optimization and interference avoidance: The hydraulic jack is hung under the main beam of the trolley to avoid collision between the jack and the steel cable and the steel truss on the roof. This optimizes the spatial layout, reduces potential safety hazards, and ensures the smooth operation of the equipment.

[0018] Easy to maintain: The modular design of the hydraulic lifting trolley makes the replacement and maintenance of various components more convenient and quick, reducing maintenance costs and time.

[0019] Strong adaptability: The overall design fully considers the needs of different application scenarios, such as the weight of the lifting equipment, the limitation of the lifting space, etc., so that the solution can be widely used in the lifting operations of various heavy equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of a mobile vehicle;

[0021] Figure 2 It is the main view of the mobile vehicle;

[0022] Figure 3 It is the main view of the balance beam;

[0023] In the figure, 1, main beam, 2, connecting beam, 3, connecting vertical beam, 4, supporting beam, 5, roller, 6, beam body, 7, lining plate, 8, pin shaft, 9, handwheel. DETAILED DESCRIPTION

[0024] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0025] like Figure 1-3 As shown, main beam 1, connecting cross beam 2, connecting vertical beam 3, supporting beam 4, roller 5, cross beam body 6, lining plate 7, pin shaft 8, hand wheel 9;

[0026] A mobile hydraulic lifting mechanism is constructed based on two sets of precisely configured traveling main beams, each set of which contains two precisely parallel traveling main beams, as the basic supporting structure of the entire lifting mechanism. On these main beams 1, movable carrier platforms are integrated, which achieve smooth and stable rolling contact with the main beams 1 through precise roller 5 mechanisms, ensuring precise position control and movement flexibility during operation.

[0027] Each carrier platform is equipped with an advanced hydraulic lifting device, hydraulic jacks, which are carefully placed in a stable frame composed of multiple connecting beams 2 and reinforced support beams 4, ensuring the uniform distribution and effective transmission of the lifting force. The key component connecting the jack and the upper balance beam is the high-strength steel cable, which cleverly passes through the gap between the support beams 4 and is closely connected to the standardized driving hook head or directly to the special connection mechanism on the balance beam, achieving an efficient and reliable connection.

[0028] In the construction of the mobile vehicle, a scientific double main beam 1 design is adopted, supplemented by multiple parallel and spaced connecting cross beams 2, and carefully arranged connecting vertical beams 3 and support beams 4, which together form a strong and flexible support structure. The roller 5 assembly is fixed under the main beam 1 through a precise bolt connection system, ensuring the smooth rolling and precise positioning of the roller 5 on the main beam 1. In addition, the multiple sets of threaded holes preset on the main beam 1 provide flexible and diverse options for the installation and adjustment of the roller 5 assembly, meeting the precise requirements under different working conditions.

[0029] As the key load-bearing component of the entire lifting system, the design of the balance beam fully reflects the combination of scientificity and practicality. The two ends of the crossbeam body 6 are equipped with a precise connection mechanism, which consists of parallel spaced lining plates 7, threaded pins 8 and other components. Through welding and threaded connection technology, it realizes a stable connection with the crane hook or connector. The hand wheel 9 set on the pin 8 is convenient for the operator to make precise adjustments and tightening, further improving the reliability and safety of the system.

[0030] Instructions for use: Place two mobile carriers on the main beam of the crane. The mobile carrier is used as a temporary tool. It is driven by the original carrier set on the main beam of the crane. When in use, the movement of the original carrier is controlled by the control mechanism on the crane mechanism, thereby controlling the movement of the temporary mobile carrier. The lifting and lowering of the balance beam is controlled by manipulating the hydraulic jack on the mobile carrier to extend and retract the steel cable.

[0031] Working principle: The weight is lifted by the balance beam, and the middle pin 8 is connected to the lug plate and the connector, and the connector is connected to the hydraulic jack through a steel cable. The hydraulic jack moves on the main beam of the crane through a mobile carrier. There are multiple groups of threaded holes on the main beam 1. The mounting seat where the roller 5 is located can adjust the installation position as needed, so as to adjust the rules to adapt to the main beams 1 with different spacing distances. The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A mobile hydraulic lifting mechanism, characterized in that: It comprises at least two groups of crane main beams, each group of crane main beams comprises two parallel arranged crane main beams, each group of crane main beams is provided with at least one mobile carrier, the mobile carrier is connected to the crane main beams by rollers, each mobile carrier is provided with at least one hydraulic lifting device, the hydraulic lifting device is connected to the balance beam by a connecting piece, and a hook is provided under the balance beam.

2. A mobile hydraulic lifting mechanism according to claim 1, characterized in that: The connecting piece is a steel cable, and the steel cable is connected to the balance beam through a driving hook head or a connecting head.

3. A mobile hydraulic lifting mechanism according to claim 2, characterized in that: The mobile carrier includes two parallel main beams, a plurality of parallel and spaced connecting cross beams are provided between the two main beams, at least two parallel and spaced connecting vertical beams are provided on the lower end surfaces of the connecting cross beams at both ends, a supporting beam is connected between the bottom ends of adjacent connecting vertical beams, a plurality of rolling assemblies are provided on the two main beams, the rolling assemblies include mounting seats and rollers, the rollers are rotatably connected to the mounting seats, the mounting seats are installed on the lower end surfaces of the main beams by bolts, and a plurality of groups of threaded holes for connecting the mounting seats are provided on the main beams.

4. A mobile hydraulic lifting mechanism according to claim 3, characterized in that: The hydraulic lifting device is a hydraulic jack, which is placed on the support beam. The hydraulic jack is connected to one end of a steel cable, and the steel cable passes through the gap between the support beams.

5. A mobile hydraulic lifting mechanism according to claim 4, characterized in that: The balance beam comprises a crossbeam body, both ends of which are provided with connecting mechanisms, and the connecting mechanisms are used to connect a driving hook head or a connecting head.

6. A mobile hydraulic lifting mechanism according to claim 5, characterized in that: The connecting mechanism includes two parallel spaced lining plates and a pin shaft. The lining plates are perpendicular to the beam body. The bottom ends of the lining plates are welded to the beam body. The surfaces of the lining plates are provided with through holes, and nuts are welded in the through holes. The outer surface of the pin shaft is provided with threads, and the pin shaft is threadedly connected in the through holes of the lining plates.

7. A mobile hydraulic lifting mechanism according to claim 6, characterized in that: One end of the pin shaft is provided with a hand wheel.

8. The mobile hydraulic lifting mechanism according to claim 7, characterized in that: The connecting head includes a mounting plate, a connecting plate, and a connecting shaft. The two ends of the mounting plate are respectively connected to one end of a connecting plate. The connecting plate is perpendicular to the mounting plate. A through hole is provided on the surface of the connecting plate. The two ends of the connecting shaft are respectively inserted into the through holes. The connecting head is connected to the pin shaft through a hanging ear plate. The surface of the hanging ear plate is provided with a first connecting hole and a second connecting hole. The first connecting hole is connected to the connecting shaft, and the second connecting hole is connected to the pin shaft.

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