Fully foldable boom crane operated by electrically powered actuators

Abstract

The invention relates to a fully foldable boom crane equipped with electronic actuators, wherein all functional movements of the system are performed using these electronic actuators.

Description

[0001] DESCRIPTION

[0002] FULLY FOLDABLE BOOM CRANE OPERATED BY ELECTRICALLY POWERED ACTUATORS

[0003] Technical Field

[0004] The invention relates to a fully foldable boom crane equipped with electronic actuators, wherein all functional movements of the system are performed using these electronic actuators.

[0005] Prior Art

[0006] Cranes typically perform their movements using hydraulic equipment. The linear movements of cranes are generally carried out by hydraulic cylinders, while rotational movements are usually achieved via hydromotors. In order to provide the necessary driving power for these systems, an electric or internal combustion engine to drive the hydraulic pump, a hydraulic pump itself, and a hydraulic control unit are required. Additionally, hydraulic safety valves are necessary to ensure the safety of the system.

[0007] When examining existing systems, many types of cranes powered by electricity can be found. These products derive their power from electricity, but they still drive a hydraulic system with that power, and the crane continues to operate via hydraulic cylinders.

[0008] When evaluating the known state of the art, it becomes clear that with the developments made on our product, a crane different from existing products emerges. Summary of the Invention

[0009] The invention relates to a fully foldable boom crane that is mounted on a lower chassis with a slewing gear mechanism, consisting of a vertical boom, a main boom, and a knuckle group with infinite rotation capability, along with supporting legs and electric actuators used to maintain the balance of these components.

[0010] Unlike conventional cranes, which operate with hydraulic cylinders, this invention operates with electric actuators, eliminating the need for hydraulic components.

[0011] Since the invention can operate without the need for hydraulic cylinders, it will not cause oil leaks in the event of a malfunction or replacement, and the probability of breakdown is minimized.

[0012] The invention provides a cleaner and easier-to-maintain solution, offering higher precision in applications requiring sensitive control.

[0013] With its electric actuators, the invention allows for precise control of the crane's movement speed, position, and force. Since the product is powered by electrical energy, it offers energy efficiency.

[0014] The invention operates without the need for driving motors, diesel engines, pumps, etc., making it quieter compared to conventional cranes.

[0015] Description of the Figures

[0016] Figure 1 : Complete system

[0017] Explanation of References in the Figures

[0018] 1. Lower Chassis

[0019] 2. Slewing Gear

[0020] 3. Vertical Boom

[0021] 4. Main Boom

[0022] 5. Knuckle Boom

[0023] 6. Extension Boom 7. Leg Extension Boom

[0024] 8. Electric Actuator Providing Linear Movement for Leg Pressing

[0025] 9. Electric Actuator Providing Circular Movement for Tower Rotation

[0026] 10. Electric Actuator Providing Linear Movement for Lifting

[0027] 11. Electric Actuator Providing Linear Movement for Knuckle

[0028] 12. Electric Actuator Providing Linear Movement for Boom Extension

[0029] 13. Electric Actuator Providing Circular Movement for Leg Extension

[0030] Detailed Description of the Invention

[0031] The invention relates to a crane that can be mounted on a truck, featuring a fully foldable boom mechanism due to the foldability of the main boom (4) and the knuckle boom (5), and operates through electric actuators.

[0032] The invention comprises:

[0033] A lower chassis (1) mounted on the truck,

[0034] A slewing gear (2) with infinite rotation capability located on the lower chassis (1),

[0035] An electric actuator (9) providing circular movement for tower rotation between the lower chassis (1) and the vertical boom (3),

[0036] An electric linear actuator (10) providing movement between the vertical boom (3) and the main boom (4) for lifting,

[0037] An electric linear actuator (11) providing movement between the main boom (4) and the knuckle boom (5) for folding,

[0038] An electric linear actuator (12) providing movement between the knuckle boom (5) and the extension boom (6) for boom extension,

[0039] An electric circular actuator (13) providing movement between the lower chassis (1) and the leg extension boom (7) for leg extension,

[0040] An electric linear actuator (8) providing movement for leg pressing to ensure the system's balance or stabilization through ground contact, made possible by the extension movement. The vertical boom (3) is connected to the lower chassis (1) via the slewing gear (2) with infinite rotation capability. The rotational movement between the lower chassis (1) and the vertical boom (3) is provided by the electric circular actuator (9) responsible for tower rotation.

[0041] The vertical boom (3) and the main boom (4) are connected to each other to allow for circular movement. The movement between these two components is achieved by the linear movement provided by the electric lifting actuator (10).

[0042] The main boom (4) and the knuckle boom (5) are connected to each other to allow for circular movement. The movement between these two components is achieved by the linear movement provided by the electric knuckle actuator (11).

[0043] The knuckle boom (5) and the extension boom (6) are connected to each other to allow for linear movement. The movement between these two components is achieved by the linear movement provided by the electric boom extension actuator

[0044] (12).

[0045] The lower chassis (1) and the leg extension boom (7) are connected to each other to allow for linear movement. The movement between these two components is achieved by the circular movement provided by the electric leg extension actuator

[0046] (13).

[0047] The electric linear leg pressing actuator (8) is rigidly connected to the leg extension boom (7). The electric linear leg pressing actuator (8) allows for ground contact by performing linear movement, thereby ensuring the balance or stability of the system.

Claims

Claims1. The invention is a fully foldable boom crane, characterized by: o A lower chassis (1) mounted on a truck, o A slewing gear (2) with infinite rotation capability located on the lower chassis (1), o An electric circular actuator (9) providing rotational movement between the lower chassis (1) and the vertical boom (3), o An electric linear actuator (10) providing movement between the vertical boom (3) and the main boom (4) for lifting, o An electric linear actuator (11) providing movement between the main boom (4) and the knuckle boom (5) for folding, o An electric linear actuator (12) providing movement between the knuckle boom (5) and the extension boom (6) for boom extension, o An electric circular actuator (13) providing movement between the lower chassis (1) and the leg extension boom (7), o An electric linear actuator (8) providing movement for leg pressing, which ensures the balance or stability of the system by making ground contact through the extension movement.

2. The invention, as described in claim 1, is a fully foldable boom crane, characterized by having the mechanical feature of a fully foldable boom due to the foldability of the main boom (4) and the knuckle boom (5), and operating with electric actuators.

3. The invention is a fully foldable boom crane, characterized by the ability to precisely control the speed, position, and force of the crane movements through its electric actuators.

4. The invention is a fully foldable boom crane, characterized by operating with electric power, offering energy efficiency, and working more quietly than conventional cranes as it does not require driving motors, diesel engines, pumps, or similar equipment.

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