Crane vehicle

CN122957751APending Publication Date: 2026-10-23ELGIN ENGINEERING MACHINERY IMPORT & EXPORT TRADING CO LTD
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Patent Information

Application Number
CN202510807146.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-17
Publication Date
2026-10-23

AI Technical Summary

Technical Problem

就起重机便携性而言,尤其地在狭窄空间中或在诸如隧道之类的障碍物周围仍然存在高度问题

Benefits of technology

[0023]为了最好地理解本发明的结构及其与附加元件一起的优点,其需要与下面所描述的附图一起进行评估。

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Abstract

The invention is a crane vehicle (10) developed for use in various industries such as construction sites, building sites, factory assembly, power plants, etc., wherein the crane vehicle (10) comprises: a cabin (11) manufactured as a whole with the crane tower (12), the cabin (11) can be rotated 180 degrees around the vertical axis so that the operator can see and control both the carrier vehicle and the crane tower (12); a crane tower (12) performing the lifting function of the crane vehicle (10) and working with the operator's cabin (11), the crane tower (12) is manufactured as a whole for carrying loads; a chassis (16) carrying all the structural components of the crane vehicle (10); a modular engine compartment (15) connected to the side of the chassis (16) in a detachable manner for the installation of the engine.
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Description

Technical Field

[0001] This invention relates to a rubber-wheeled self-propelled articulated boom crane vehicle, which features an integrated crane and load-bearing structure, a low-profile chassis, thereby providing high mobility, allowing control of travel and crane operation from a single compartment, and is particularly suitable for working in confined spaces. It is equipped with an electro-hydraulic locking mechanism for increased safety and improved stability. Background Technology

[0002] Today's knuckle boom crane systems are typically mounted on standard carrier vehicles. For example, truck-mounted knuckle boom cranes are used by different manufacturers, thus requiring carrier vehicles manufactured to certain standards. These types of crane systems are usually mounted on 3-axle or 4-axle trucks, and have limited mobility depending on the carrier vehicle's design. In particular, when working in confined spaces, the carrier vehicle's mobility is limited due to its wide turning diameter, making it difficult to use in narrow spaces such as factory work areas, tunnels, and mines.

[0003] Furthermore, because the crane and the carrier vehicle are designed as separate units in the current system, crane adaptation must be performed according to different truck models and manufacturers. This requires additional engineering work and assembly adjustments for crane manufacturers, increasing costs and assembly time. At the same time, the integration specifically tailored to each crane and carrier vehicle model complicates maintenance and repair processes and makes access difficult in the event of potential failures or maintenance.

[0004] Another significant problem with current crane systems is that the cabs providing crane operation and the vehicle's movement are located separately. This structure limits the operator's field of vision and reduces work efficiency. Although some crane systems have rotating cab mechanisms, the locking systems for these mechanisms are typically provided only by hydraulic braking mechanisms. However, leaks or sudden shocks that can occur in the hydraulic system can cause undesirable movement of the cab and ring gear. This situation poses a risk to the occupational safety of both the operator and the surrounding area.

[0005] In addition, stability is also a significant issue in current crane systems. Stabilizer systems used to ensure balance during operation typically operate at a specific angle, and may experience a loss of lifting capacity in certain directions during crane movement.

[0006] Finally, because the crane's drive system and engine compartment are typically integrated into the carrier vehicle, it may be necessary to disassemble the entire crane or the associated carrier vehicle for engine maintenance and repair. This prolongs the repair and maintenance process and reduces operational efficiency.

[0007] To address issues such as difficulty in maneuvering and imbalance experienced in current crane systems during load-bearing periods, research has been conducted on the integration between the carrier vehicle and the crane, ease of maneuvering, and designs suitable for road load-bearing limitations. One such research is the invention described in patent application number US3664516(A) entitled "KnuckleBoom Crane." This crane can be mounted on a carrier vehicle with a folding boom and hook. This design is evenly distributed across the front and rear of the vehicle to provide high mobility. A truck-mounted, fully folding boom for material handling and similar work carries at least 100 feet of cantilever and hook within reasonable road limits when in the load-bearing position. While this patent allows for a more compact crane boom during transport through folding, it does not address mobility when working in confined spaces. The patent only improves stability in the transport position and provides a limited solution for increasing mobility. The patent focuses only on the portability of the folding boom and does not provide solutions such as full integration with the carrier vehicle or designing the carrier vehicle chassis as a single unit with the crane. There is also no solution for the height of the crane design. Regarding the portability of cranes, height remains a significant issue, especially in confined spaces or around obstacles such as tunnels.

[0008] For these reasons, a new crane carrying system is needed that provides high mobility in confined spaces, optimizes the integration of the carrying vehicle and the crane, increases operator safety, and facilitates the maintenance process. Therefore, the demand for rubber-tired self-propelled articulated boom crane vehicles that overcome the shortcomings of current technologies and the deficiencies of existing solutions necessitates the development of related technological fields. Summary of the Invention

[0009] This invention relates to a rubber-wheeled self-propelled articulated boom crane vehicle, which has an integrated crane and load-bearing structure, a low-profile chassis, thereby providing high mobility, allowing control of travel and crane operation from a single compartment, and is particularly suitable for working in confined spaces. It is equipped with an electro-hydraulic locking mechanism to increase safety and has improved stability, thereby meeting the aforementioned requirements, eliminating all disadvantages and bringing some additional advantages.

[0010] Based on known existing technology, the object of the present invention is to design the crane and the carrying vehicle as a whole, to perform safe and efficient operation using special hydraulic and mechanical systems, to develop a compact and highly maneuverable crane vehicle that can be used in areas such as buildings, construction sites, factory assembly plants and power plants, even in confined spaces, and to operate effectively and safely even in difficult terrain conditions.

[0011] The purpose of this invention is to provide the ability to operate in areas inaccessible to ordinary truck-mounted cranes, and even in difficult terrain conditions, using a 4x4 rubber-tired self-propelled folding boom crane.

[0012] Another object of the present invention is to provide effective use in limited areas by means of its compact structure, which provides the ability to be easily manipulated in narrow spaces.

[0013] Another objective of this invention is to achieve a more compact and durable structure by manufacturing the crane and the load-bearing components as a single unit, thereby ensuring that the load-bearing components and the crane system operate harmoniously and safely.

[0014] Another object of the invention is to provide high maneuverability in confined spaces by means of steering on the front and rear axles, thereby allowing operations to be performed quickly and without disrupting the environment.

[0015] Another objective of the invention is to achieve a lower structure compared to conventional truck-mounted cranes by means of its specially designed chassis and crane section, thereby ensuring easy passage through areas with high obstacles.

[0016] Another object of the invention is to increase operator safety by providing maximum visibility during travel and crane operation through a cabin that can rotate 180 degrees.

[0017] Another object of the present invention is to increase the turning ability of the vehicle during travel and to prevent possible accidents, especially to prevent greater safety risks in the event of possible hydraulic leakage or impact, by means of securing the ring gear and crane of the compartment with a locking mechanism.

[0018] Another object of the present invention is to ensure safe integration between the crane and the cabin and to perform more precise operations by using a hydraulic system to move the cabin and the ring gear.

[0019] Another object of the present invention is to prevent undesirable situations during operation and to provide additional safety measures by means of a physical locking system that ensures safety even in the event of possible leaks or shocks in the hydraulic system.

[0020] Another objective of this invention is to create a stable and safe working environment from all angles during crane operation by providing 360-degree capability with the help of its specially designed chassis and six stabilizers.

[0021] Another object of the present invention is to ensure quick and easy access to the engine during production as well as during maintenance, repair and repair operations, by means of a special design of a system driven by a diesel engine, which can be externally mounted and subsequently installed on the machine.

[0022] The structural and characteristic features of the invention, and all its advantages, will become clearer with the aid of the accompanying drawings and the detailed description written with reference to these drawings; therefore, an evaluation is necessary by considering these drawings and the detailed description. Attached Figure Description

[0023] To best understand the structure of the invention and its advantages together with the additional elements, it is necessary to refer to the appendix described below. Figure 1 An evaluation will be conducted.

[0024] Figure 1 This is a schematic overall view of the crane vehicle as seen from the side.

[0025] Figure 2 This is a schematic overall view of the crane vehicle as seen from the front.

[0026] Figure 3 This is a schematic overall view of the crane vehicle as seen from the rear.

[0027] Figure 4 This is a 3D view of the left front of the crane vehicle.

[0028] Figure 5 This is a schematic overall view of the tower locking pins on the chassis.

[0029] Figure 6 This is a schematic overall view of the chassis, including the compartment locking pins and the engine compartment.

[0030] Figure 7 This is a schematic overall view of the chassis as seen from above.

[0031] Figure 8 This is a schematic overall view of the crane vehicle in its working position.

[0032] Figure 9 This is a schematic overall view of the cabin rotation mechanism.

[0033] Figure Labels

[0034] 10. Crane vehicles

[0035] 11. Cabin

[0036] 12. Crane tower

[0037] 13. Tower locking pin

[0038] 14. Cabin locking pin

[0039] 15. Engine compartment

[0040] 16. Chassis

[0041] 17. Cabin rotation mechanism Detailed Implementation

[0042] In this detailed description, the rubber-wheeled self-propelled folding boom crane vehicle 10, which is the subject of the invention and has an integrated crane tower 12 and a low-profile chassis 16, provides high mobility, allows control of travel and crane operation from a single compartment 11, is particularly suitable for working in confined spaces, is equipped with an electro-hydraulic locking mechanism for increased safety, and has improved stability capabilities. It is described by way of example only for better understanding of the subject matter and does not constitute any limiting effect.

[0043] Figure 1 The invention shown is a 4x4 rubber-tired, self-propelled, and articulated boom crane vehicle 10. The crane vehicle 10 is designed for use in various industries such as construction sites, building sites, factory assembly plants, and power plants. The crane vehicle 10's ability to operate in particularly difficult terrain conditions makes it superior to current truck-mounted cranes. Thanks to the compact structure of the invention, it provides easy mobility in confined spaces. Furthermore, the crane tower 12 and chassis 16 are manufactured as... Figure 2 The overall design shown makes its use more effective.

[0044] Figure 3 The crane vehicle 10 shown includes: a compartment 11 that can rotate 180 degrees about a vertical axis to allow the operator to control both the carrier vehicle and the crane tower 12, thereby providing a safe and efficient work area; a crane tower 12 that performs the lifting function of the crane vehicle 10 and works in conjunction with the operator compartment 11 to transport the load; an engine compartment 15 that has a modular structure that facilitates engine assembly and speeds up maintenance operations, and supports the efficient operation of the crane vehicle 10 by being fixed to a chassis 16; and a chassis 16 that carries all structural components of the crane vehicle 10 and ensures the stability of the entire system. Figure 4The shown compartment 11 is a crucial element allowing the operator to control the vehicle and crane. The compartment 11 is designed to rotate 180 degrees about a vertical axis. This feature allows the operator easy visibility of both the load-bearing section and the crane tower 12 section. The compartment 11 is mounted on the crane tower 12 and is movable during operation. A compartment rotation mechanism 17 is also present, enabling the compartment 11 to rotate. The compartment rotation mechanism 17 allows the compartment 11 to rotate smoothly and allows the operator easy visibility of the entire area. The crane tower 12 allows the crane vehicle 10 to have a lower structure compared to current systems. In this way, the crane vehicle 10 can operate easily without any height-related obstacles. The crane tower 12 has a structure on which the compartment 11 is mounted. The lower design of the crane tower 12 allows for easier movement of the crane tower 12 in confined spaces. Figure 5 The tower locking pin 13 shown is an important safety mechanism to prevent the crane tower 12 from moving during travel. The tower locking pin 13 locks the crane tower 12 and prevents the crane tower 12 from turning right / left during turns. Similarly, Figure 6 The shown compartment locking pin 14 secures the compartment 11 during travel and prevents it from moving when turning. The tower locking pin 13 and compartment locking pin 14 ensure safety by increasing the stability of the crane vehicle 10 during travel. Figure 7 The engine compartment 15 shown is a specially designed and modular component. The engine compartment 15 is connected to the side of the chassis 16 by means of connecting elements. The engine compartment 15 facilitates easy engine installation and maintenance when necessary. Assembly of the engine to the chassis 16 is very easy thanks to the specially designed cavity. Furthermore, the ability to mount the engine compartment 15 externally allows for quick and practical maintenance and repair operations. The chassis 16 is the most important structural component of the load-bearing section of the crane vehicle 10. The chassis 16 is specifically designed with cavities for easy engine installation. Additionally, the chassis 16 has a very robust structure, allowing the crane tower 12 to operate without any loss of capacity. The chassis 16, thanks to its rigid structure, can be used even in the most difficult terrain conditions during operation. The chassis 16 is the main platform providing the fixation for all components and is therefore crucial for the safety and efficiency of the crane vehicle 10.

[0045] The crane vehicle 10 is characterized in that it is a single unit, wherein the cabin 11 and the crane tower 12 are integrated into a carrier portion comprising a chassis 16. This integrity must be maintained for the proper operation of the crane vehicle 10. The cabin 11 can rotate 180 degrees about a vertical axis. Therefore, both the carrier and the crane tower 12 can be controlled from the cabin 11. Figure 8The crane tower 12 shown is in the working position, with the cabin 11 rotated 180 degrees. The crane tower 12 is designed to be lower than usual. This allows the crane vehicle 10 to have a ground clearance of approximately 3 to 4 meters when in the road position. This ensures that the crane vehicle 10 has a lower structure compared to similar machines. The cabin 11 system is also mounted on the crane tower 12. Figure 9 The shown compartment rotation mechanism 17 is mounted on the crane tower 12. If necessary, the engine compartment 15 can be separated from the crane vehicle 10.

Claims

1. A crane vehicle (10) developed for use in various industries such as construction sites, building sites, factory assembly, and power plants, characterized in that, The crane vehicle (10) includes: Cabin (11), which is integrally manufactured with crane tower (12), is capable of rotating 180 degrees around a vertical axis, so that the operator can see and control both the carrying vehicle and the crane tower (12); Crane tower (12), which performs the lifting function of the crane vehicle (10) and works in conjunction with the operator's cabin (11), the crane tower (12) being manufactured as a single unit for transporting loads; The chassis (16) carries all structural components of the crane vehicle (10); A modular engine compartment (15) is detachably connected to the side of the chassis (16) for mounting the engine.

2. The crane vehicle (10) according to claim 1, characterized in that, The crane vehicle (10) includes a cabin rotation mechanism (17) mounted on the crane tower (12) to rotate the cabin (11) so that the operator can easily see the entire area.

3. The crane vehicle (10) according to claim 1, characterized in that, The crane vehicle (10) includes a tower locking pin (13) that locks the crane tower (12) in order to fix the crane tower (12) during travel and to prevent the crane tower (12) from turning to the right or left when turning.

4. The crane vehicle (10) according to claim 1, characterized in that, The crane vehicle (10) includes a cabin locking pin (14) that locks the cabin (11) in order to fix the cabin (11) during travel and to prevent the cabin (11) from moving when turning.

5. The crane vehicle (10) according to claim 1, characterized in that, The crane vehicle (10) includes a cavity formed on the side of the chassis (16) for mounting the engine.

6. The crane vehicle (10) according to claim 1, characterized in that: The crane vehicle (10) is a 4x4 rubber-wheeled, self-propelled crane with a folding boom.