A whole vehicle explosion-proof crane integrated device

Abstract

The utility model discloses a whole vehicle explosion -proof crane integrated equipment belongs to the technical improvement scheme of dangerous environment material handling and hoisting field, and this equipment includes frame structure, AGV wheel group and lifting arm subassembly, and frame structure is the design of ladder type, is divided into upper ladder frame and lower ladder frame, and upper ladder frame is equipped with the bearing platform and is embedded with explosion -proof battery group, explosion -proof main control box and AGV wheel control box, and lower ladder frame is configured with multistage telescopic lifting arm and tail support structure, equipment realizes in -place rotation and autonomous navigation movement through AGV wheel group, realizes the three -dimensional extension of hoisting range through the " rotation + pitch + a number of telescopic " composite structure of lifting arm, and the stability of hoisting is improved by the support system being composed of multiple adjustable supporting legs, and the whole vehicle structure adopts the design of explosion -proof structure, is applicable to petrochemical, military industry and dangerous goods storage and the like place, can complete efficient, safe transfer and hoisting operation in the narrow space.

Description

Technical Field

[0001] This utility model relates to the field of hoisting and transportation technology, specifically to an integrated vehicle-mounted crane with explosion-proof features. Background Technology

[0002] In hazardous environments, confined spaces, or warehouses, material handling and loading / unloading operations typically require the combined use of transfer and hoisting equipment. Existing transfer vehicles generally only have transport functions, relying on manual pushing, pulling, or towing methods, and cannot achieve automated operation. In space-constrained areas, traditional towing and transfer methods struggle to achieve flexible maneuvering, and vehicle versatility is poor; a single vehicle type is often only suitable for handling one type of goods, making it unsuitable for transferring different types of goods.

[0003] Existing lifting and hoisting equipment mostly adopts a fixed-track walking structure and is driven by mains electricity. This type of equipment requires pre-embedded track foundations in the work area, resulting in high construction costs and long construction periods, making it difficult to adapt to the needs of rapid deployment and frequent site relocation. Furthermore, the equipment operation is labor-intensive, has low automation levels, and its operational efficiency and flexibility are significantly limited, failing to meet the demands of modern industrial environments for efficient, flexible, and intelligent operations.

[0004] Currently, there is a lack of integrated equipment on the market that can organically combine cargo transfer and lifting functions and operate safely in hazardous locations. The functional separation of existing equipment leads to a series of problems such as redundant investment, complex operation organization, and increased safety risks. Therefore, there is an urgent need to develop a new type of equipment with explosion-proof capabilities, flexible operation in confined spaces, and integrated transfer and lifting operations to improve operational efficiency, safety, and versatility in hazardous environments. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide an integrated explosion-proof vehicle-mounted crane equipment. This equipment integrates transfer and lifting functions, adopts an explosion-proof design for the whole vehicle, has the ability to operate in different locations, and is suitable for special places such as confined spaces and flammable and explosive environments. Through the coordination of multi-stage pitch and telescopic robotic arms and AGV wheel sets, it can achieve efficient, safe and flexible material handling and lifting operations, and can effectively solve the problems in the background technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an integrated explosion-proof vehicle-mounted crane device, comprising a frame structure, AGV wheel set, and lifting arm assembly. The integrated vehicle-mounted crane device is made of special high-strength steel. The frame structure adopts a multi-longitudinal beam variable cross-section structure design, and the overall frame structure is stepped, divided into an upper stepped frame and a lower stepped frame. The upper stepped frame serves as a load-bearing platform, enabling the transportation and transfer of equipment or goods. The load-bearing surface of the platform is covered with a checkered plate for anti-slip purposes. The frame structure is equipped with tie-down and positioning devices on both sides to secure the transferred goods. Anti-collision radar is also designed on both sides, providing functions such as automatic distance measurement, early warning, and automatic stop of transfer operations. Support devices are designed on the front and rear sides of the upper stepped frame, and these support devices have a telescopic function. During lifting and hoisting, the support devices extend to lift the frame for support, meeting the requirements of lifting and hoisting operations. A tail support is designed at the rear end of the lower stepped frame, which works in conjunction with the left and right side supports of the upper stepped frame. The support system jointly supports the frame, ensuring stability during lifting and hoisting operations. The lower step frame is equipped with a lifting arm assembly, which adopts a two-stage tilting arm + four-stage telescopic arm structure. This structure makes the robotic arm more flexible, fully utilizing the warehouse dome height and increasing warehouse utilization. The lifting arm assembly is connected to the lower step frame via a lower slewing support, allowing the robotic arm to rotate 360°, achieving lifting and hoisting operations without blind spots. The lifting arm assembly includes a primary arm, a secondary arm, and a folding telescopic assembly. The lower end of the first-stage boom is equipped with a slewing support, which is fixed to the frame by a mounting flange. One end of the second-stage boom is hinged to the upper end of the first-stage boom. An AGV wheel set is installed on the lower part of the upper-step frame. The AGV wheel set realizes the integrated crane and truck equipment to achieve transportation and transfer functions. An explosion-proof battery pack, an AGV explosion-proof wheel control box, and an explosion-proof main control box are installed inside the upper-step frame. The main control panel is designed at the front end of the upper-step frame, and the power system, hydraulic system, filtration system, and lifting and hoisting main control box are installed at the rear end.

[0007] Furthermore, a pitch cylinder is installed on each side of the first-stage boom. The lower end of the pitch cylinder is hinged to the slewing support, and the upper end of the pitch cylinder is hinged to the second-stage boom, so that the lifting and pitching functions are performed synchronously.

[0008] Furthermore, both the telescopic arm and the folding arm have rectangular cross-sections, with symmetrical inclined surfaces at the top and bottom. This symmetrical structure ensures automatic force alignment during sliding, guaranteeing the safety and reliability of the telescopic structure. It also increases the contact area and structural strength. The first-stage telescopic arm and folding arm utilize guide sliders for sliding cooperation. These guide sliders include a front guide slider and a rear guide slider. The front guide sliders are located on the two inclined surfaces on the upper front end of both the folding and telescopic arms, while the rear guide sliders are located on the two inclined surfaces on the lower rear end of the telescopic arm. During telescopic arm extension and retraction, the cooperation of the guide sliders reduces friction between the arm tubes, extending the service life of the equipment.

[0009] Furthermore, the guide slider is fixed to the inclined surface with screws. The guide slider is designed with a rectangular structure and has wear-resistant strips on its sides. When the guide slider wears to a certain extent, the wear-resistant strips will protect the boom. Only the guide slider and wear-resistant strips need to be replaced, which will not damage the boom. The surface of the guide slider is provided with V-shaped grooves. The V-shaped grooves are arranged in a cross pattern. This design can reduce friction while ensuring the contact area, which is equivalent to increasing the friction points. It also facilitates the flow of gas and reduces resistance.

[0010] Furthermore, a second pitch cylinder is installed in the secondary arm. The secondary pitch arm adopts a single cylinder structure. The second pitch cylinder is installed in the lower middle part of the secondary arm. The extension and retraction end of the second pitch cylinder is hinged with a first hinge plate and a second hinge plate. The lifting and pitching functions are realized by the extension and retraction of the second pitch cylinder. The second pitch cylinder at the transition joint drives the folding extension component to fold, so that the lifting arm component is in a folded state, which facilitates free entry and exit from the warehouse.

[0011] Furthermore, five support devices are provided, four of which are respectively located on both sides of the rear and front ends of the upper stepped frame, and the other support device is located at the rear end of the lower stepped frame. The support device includes a support leg cylinder, a sliding arm, a fixed arm, a support foot, and a support cylinder. The fixed arm is slidably connected to the sliding arm, and a support cylinder is hinged inside the fixed arm. The telescopic end of the support cylinder is hinged to the sliding arm. A support leg cylinder is provided at the outer end of the sliding arm, and a support foot is provided at the lower end of the support leg cylinder. A tail support is provided at the rear end of the lower stepped frame. The tail support includes a support leg cylinder and a support foot, and can also be designed to be telescopic or non-telescopic.

[0012] Furthermore, the folding telescopic assembly also includes telescopic cylinders, the number of which is the same as the telescopic arm.

[0013] Furthermore, the AGV wheel set consists of an explosion-proof drive motor, an explosion-proof steering motor, an explosion-proof braking torque converter, an explosion-proof encoder, an explosion-proof proximity switch, a planetary reducer, an anti-static composite wheel, a mounting bracket, gears, etc. The anti-static composite wheel is mounted on the mounting bracket, and the planetary reducer is installed inside the anti-static wheel hub. The planetary reducer and hub are designed as an integrated structure, joined together using a special process. One end of the planetary reducer is equipped with the explosion-proof drive motor, braking torque converter, and encoder, while the other end is directly mounted on the mounting bracket. The explosion-proof steering motor and explosion-proof proximity switch are vertically mounted on the mounting bracket. A small gear is mounted on the top of the explosion-proof steering motor, which meshes with the gear on the mounting bracket to complete the steering of the entire drive wheel set. An explosion-proof proximity switch and a mechanical limit switch are also installed on the mounting bracket to jointly control the rotation angle of the entire wheel frame.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model significantly improves the operational safety of the equipment in hazardous environments through the explosion-proof design of the entire vehicle; the equipment adopts explosion-proof battery packs, explosion-proof drive and steering motors, explosion-proof main control systems and explosion-proof proximity switches and other components to ensure safe operation in special working places such as flammable and explosive environments, meet the needs of industries such as petrochemical and hazardous materials storage for high-safety-level equipment, and reduce the risk of fire and explosion.

[0016] 2. The equipment integrates the traditionally separate functions of "cargo transfer" and "lifting and hoisting" into one, with high system integration and versatility, covering various application environments such as inside and outside warehouses, fixed points and mobile operation sites; through AGV wheel sets, it achieves omnidirectional movement, on-the-spot rotation and high mobility control, and with the telescopic and tiltable robotic arm structure, the equipment can operate flexibly in confined spaces, effectively solving the problems of existing equipment being unable to turn in limited space and having low collaborative efficiency.

[0017] 3. The lifting arm structure adopts a combination of "two-stage pitch + several-stage telescopic" form, which has a large lifting space coverage and strong flexibility of arm movement; the equipment can adapt to various working height and working radius requirements, and is especially suitable for operation scenarios that need to avoid dome structures or perform high-level stacking; the robotic arm operation process is stable, which significantly improves the work efficiency and space utilization efficiency. Attached Figure Description

[0018] Figure 1 This is an isometric view of the entire utility model;

[0019] Figure 2 This is a schematic diagram of the formal structure of this utility model;

[0020] Figure 3 This is a top view of the structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the vehicle frame structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the lifting arm assembly structure of the present invention;

[0023] Figure 6 This is a schematic diagram of the folding arm structure of the present invention. Figure 1 ;

[0024] Figure 7 This is a schematic diagram of the folding arm structure of the present invention. Figure 2 ;

[0025] Figure 8 This is a schematic diagram of the telescopic arm structure of the present invention;

[0026] Figure 9 This is a schematic diagram of the cross-sectional structure of the folding arm of the present invention;

[0027] Figure 10 This is a front view structural diagram of the lifting arm assembly of the present invention;

[0028] Figure 11 This is a schematic diagram of the first-stage arm structure of the present invention;

[0029] Figure 12 This is a schematic diagram of the rotary joint assembly structure of the present invention;

[0030] Figure 13 This is a schematic diagram of the support device structure of the present invention;

[0031] Figure 14 This is a schematic diagram of the hydraulic cylinder mounting structure of the present invention;

[0032] Figure 15 For the present invention Figure 8 A magnified structural diagram at point A.

[0033] In the diagram: 1. Load-bearing platform; 2. AGV wheel set; 3. Hydraulic system; 4. Upper step frame; 5. Lower step frame; 6. Support device; 7. First-stage boom; 8. Second-stage boom; 9. Telescopic cylinder; 10. Folding boom; 11. Pitch cylinder one; 12. Telescopic boom; 13. Slewing support; 14. Rotary joint assembly; 15. Hinge plate one; 16. Hinge seat; 17. Transition joint; 18. Hinge plate two; 19. Front guide slider; 20. Inclined surface; 21. Rear guide slider; 22. Reinforcing plate; 23. Tail support; 24. Limiting plate; 25. Rotary joint body; 26. Fixed type; 27. Grooved limiting block; 28. Outrigger cylinder; 29. ​​Sliding support arm; 30. Fixed support arm; 31. Support foot; 32. Support cylinder; 33. V-groove; 34. Pitch cylinder two; 35. Wear-resistant strip; 36. Explosion-proof battery pack; 37. Explosion-proof main control box; 38. AGV explosion-proof wheel control box. Detailed Implementation

[0034] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] Please see Figure 1-15 This utility model provides a technical solution: an integrated vehicle-mounted crane with explosion-proof features. The integrated crane includes a frame structure, an AGV wheel set 2, and a lifting arm assembly. The integrated crane is made of special high-strength steel. The frame structure adopts a multi-longitudinal beam variable cross-section design, with an overall stepped structure, divided into an upper stepped frame 4 and a lower stepped frame 5. The upper stepped frame 4 serves as a carrying platform 1 for transporting and transferring equipment or goods. The surface of the carrying platform 1 is covered with a checkered plate to enhance anti-slip properties. The frame structure has tie-down and positioning devices on both sides for securing goods and is equipped with anti-collision radar to achieve automatic distance measurement, early warning, and automatic stop of transfer operations. The upper stepped frame 4 has telescopic support devices 6 at its front and rear for supporting and lifting the frame during lifting operations. The lower stepped frame 5 has a rear end... Support device 6, together maintaining the stability of the frame; the lower step frame 5 is equipped with a lifting arm assembly, which adopts a combination structure of two-stage pitching arm and four-stage telescopic arm, and is connected to the lower step frame 5 through the lower slewing support 13, which can realize 360° rotation operation; the lifting arm assembly includes a first-stage arm 7, a second-stage arm 8 and a folding telescopic assembly, the lower end of the first-stage arm 7 is connected to the slewing support 13, which is fixed to the frame 1 through the mounting flange 23, and one end of the second-stage arm 8 is hinged to the upper end of the first-stage arm 7; the AGV wheel set 2 is installed in the lower part of the upper step frame 4 to realize the autonomous transfer function of the whole vehicle equipment; the upper step frame 4 is equipped with an explosion-proof battery pack 36, an AGV explosion-proof wheel control box 38 and an explosion-proof main control box 37, with a main control panel at the front end and a power system, hydraulic system 3, filtration system and lifting and hoisting main control box at the rear end.

[0036] The equipment utilizes a stepped multi-longitudinal beam frame structure to achieve a rational arrangement of functional modules and load distribution; the AGV wheel set 2 has omnidirectional steering capability and achieves high-precision motion control through electronic control; the robotic arm consists of a two-stage pitching arm and a multi-stage telescopic arm, driven by a hydraulic system and used in conjunction with a 360° rotation device for lifting operations; each pitching and telescopic movement is coordinated by a PLC control system to achieve automated operation; the side support device 6 and the tail support 23 form a three-point or multi-point support structure to improve the overall stability of the vehicle during lifting; the explosion-proof electronic control and battery system ensure inherent safety in flammable and explosive environments; the front and rear control consoles and control boxes are clearly laid out for easy operation and maintenance.

[0037] This implementation integrates material handling and hoisting functions, reducing the number of operating equipment and optimizing logistics organization. The AGV intelligent chassis enhances equipment mobility, adapting to the needs of confined spaces. The rotary robotic arm structure expands the operating radius, and the high degree of freedom in boom pitch and extension adapts to different heights and angles. High-strength materials and anti-slip design improve load-bearing capacity and safety performance. The support structure ensures the equipment does not tip over during hoisting operations, enhancing safety. The explosion-proof design meets the requirements of high-risk industries such as petrochemicals and hazardous materials storage, reducing the risk of fire and explosion.

[0038] The frame structure material can be adjusted according to different operating environments. For example, weathering steel or aluminum alloy can be used in extremely cold or high-temperature areas. The AGV wheel set can be configured with different drive schemes (such as servo motors or pneumatic devices) to adapt to areas with limited power conditions. The telescopic number of the lifting arm can also be adjusted according to the lifting height and radius requirements. A hydraulic slewing device can be selected for the slewing support to improve the lifting response speed. The arrangement and quantity of the support device can also be optimized and adjusted according to site conditions to form a customized support solution. The control system can integrate an Internet of Things module to realize remote monitoring and fault early warning functions, enhancing the intelligence level and maintenance efficiency of the equipment.

[0039] In one possible implementation, pitch cylinders 11 are respectively installed on both sides of the primary boom 7. The lower end of the pitch cylinder 11 is hinged to the slewing support 13, and the upper end is hinged to the secondary boom 8, forming a pitch control structure for the primary boom 7. The pitch cylinder 11 is hydraulically controlled to adjust the pitch angle of the secondary boom 8, thereby cooperating with the attitude adjustment of the overall lifting boom to complete the height and angle positioning requirements in the hoisting operation.

[0040] This embodiment uses pitch cylinders 11 arranged on both sides to form a symmetrical support structure between the primary arm 7 and the secondary arm 8, which can provide stable and reliable power support during the lifting process. The two ends of the pitch cylinders 11 are respectively hinged to the slewing support 13 and the secondary arm 8. Under the control of the hydraulic system, one end of the cylinder advances or retracts, causing the secondary arm to pitch and swing around the connection point with the primary arm, thereby driving the entire lifting arm assembly to achieve pitch movement. This structure can achieve precise angle adjustment, improving the flexibility and positioning accuracy of the lifting operation.

[0041] By symmetrically arranging the pitch cylinders (11), the load balance of the connection structure between the first and second booms is improved, effectively reducing the impact of single-sided cylinder failure on system stability. This design simplifies the control logic and helps improve the synchronization and reliability of lifting actions. When performing complex lifting tasks, the dual-cylinder structure can enhance the stability and accuracy of the lifting process, making it particularly suitable for occasions requiring large-angle pitch adjustments or heavy-load lifting, significantly improving the practicality and safety of the equipment in hazardous environments.

[0042] Alternative or modified implementation methods

[0043] In the alternative, the connection method of the pitch cylinder 11 can be changed from a hinge to a spherical universal joint structure to adapt to angle changes during complex spatial movements; the driving method of the pitch cylinder can be changed from hydraulic drive to electric lead screw drive for applications with special requirements for noise and hydraulic leakage control; in addition, if the lifting load is relatively light, a single cylinder structure can be used and arranged in the center of the first-stage boom, but structural reinforcement is required to ensure lateral stability; at the same time, depending on the differences in the control system, an encoder can also be configured to monitor the cylinder position to achieve closed-loop angle control and improve the level of intelligence.

[0044] In one possible implementation, both the telescopic arm 12 and the folding arm 10 have rectangular cross-sections, with symmetrical inclined surfaces 20 at the upper and lower ends of the cross-sections. The inclined surfaces 20 form a symmetrical structure and provide oblique support during telescopic movement. The first-stage telescopic arm 12 and the folding arm 10 slide together via guide sliders. The guide sliders include a front guide slider 19 and a rear guide slider 21. The front guide slider 19 is located on the upper inclined surface 20 at the front end of the folding arm 10 and the telescopic arm 12, and the rear guide slider 21 is located on the lower inclined surface 20 at the rear end of the telescopic arm 12, achieving low-friction sliding.

[0045] The structure, with its rectangular cross-section and symmetrical inclined plane design, forms a stable guide path during sliding and effectively disperses structural stress. The guide slider is installed on the inclined plane and forms a sliding pair with the arm tube. The telescopic arm 12 is driven by hydraulic or electronic control to slide out or retract in sequence, ensuring the linear accuracy of extension and retraction and structural stability during operation. The slider structure can significantly reduce the coefficient of friction between the arm tubes and extend the service life of the sliding mechanism.

[0046] This structural design not only improves guiding accuracy but also significantly reduces frictional resistance and structural wear, enhancing the smoothness of telescopic movements and structural stability. The symmetrical inclined plane structure improves the centering of the telescopic arm and enhances the overall load-bearing capacity and structural strength, making it particularly suitable for industrial applications involving high-frequency operations and long-stroke telescopic movements.

[0047] Alternative or modified implementation methods

[0048] The guide slider can be made of polytetrafluoroethylene, copper alloy, steel-based plastic-coated composite material or antistatic material; the angle of the symmetrical inclined plane can be optimized according to the cross-sectional size of the arm tube and the load requirements; the slider form can be replaced with a roller guide rail to reduce friction; the guide structure can also be equipped with a lubrication oil circuit to achieve self-lubrication function.

[0049] In one possible implementation, the guide slider is fixed to the inclined surface 20 by screws and is designed as a rectangular structure with wear-resistant strips 35 on its side. The wear-resistant strips 35 provide additional support and protection when the slider is worn, avoiding damage to the telescopic arm body. The slider surface is provided with cross-arranged V-shaped grooves 33, which helps to reduce friction and air resistance while ensuring the contact area.

[0050] When the slider slides on the inclined plane 20, the wear-resistant strip 35 first bears the load and wears out, thus protecting the slider body and the arm tube; the V-groove 33 guides the micro-airflow during the movement, reduces air resistance, and at the same time reduces the friction area by changing the distribution of contact points, which helps to improve sliding efficiency.

[0051] This structure significantly improves the service life and maintenance convenience of the guide slider. The guiding function can be restored simply by replacing the wear strip, reducing maintenance costs. The V-groove design optimizes airflow and contact structure, further improving the performance of the guiding system.

[0052] Alternative or modified implementation methods

[0053] The V-groove depth and cross angle can be adjusted according to different friction coefficients; the guide slider can adopt a modular design for easy and quick replacement; the wear-resistant strip material can be selected from polymer resin, polyurethane, carbon fiber composite material or antistatic material to adapt to high load environment.

[0054] In one possible implementation, a pitch cylinder 34 is provided below the middle of the secondary arm 8. The cylinder is a single cylinder structure, and its extension and retraction ends are respectively hinged to hinge plate 15 and hinge plate 18. When the cylinder 34 is activated, it drives the folding extension and retraction assembly to retract, and the entire lifting arm assembly 5 becomes folded, which facilitates the equipment to enter and exit the warehouse.

[0055] The pitch cylinder 34 is a key driving component. By extending and retracting, it changes the angle of the secondary arm 8 relative to the primary arm, thereby driving the entire folding arm structure to retract and fold. The cylinder is located below the central axis of the secondary arm, providing a symmetrical and stable driving force. Combined with the force transmission path of the hinge structure, it achieves a smooth and safe retraction action.

[0056] The pitch control is achieved using a single hydraulic cylinder, resulting in a compact and lightweight design that is easy to install and maintain. The folding function enhances its spatial adaptability, making it particularly suitable for environments with limited height, such as warehouses and workshops, thereby improving the equipment's adaptability and convenience in various application scenarios.

[0057] Alternative or modified implementation methods

[0058] The pitch cylinder can be driven synchronously by two cylinders to enhance control accuracy; the hinge plate connection method can be a multi-degree-of-freedom spherical connection to adapt to different folding paths; a position sensor can also be introduced into the control system to achieve precise monitoring of the folding angle.

[0059] In one possible implementation, five support devices 6 are provided, four of which are respectively located at the rear end and both sides of the rear end of the upper stepped frame 4, and the other support device 6 is located at the rear end of the lower stepped frame 5. Each support device 6 includes a leg cylinder 28, a sliding arm 29, a fixed arm 30, a support foot 31, and a support cylinder 32. The fixed arm 30 is slidably connected to the sliding arm 29, and the support cylinder 32 is hinged inside the fixed arm 30. The telescopic end of the support cylinder 32 is hinged to the sliding arm 29. The outer end of the sliding arm 29 is provided with the leg cylinder 28, and the lower end of the leg cylinder 28 is provided with the support foot 31. The rear end of the lower stepped frame 5 is also provided with a tail support 23, which includes the leg cylinder 28 and the support foot 31, and can also be designed as a telescopic or non-telescopic structure.

[0060] The support device 6 serves as a stability guarantee mechanism for the entire vehicle during lifting operations. It achieves multi-point ground support through a reasonable layout at the front, rear, left, and right sides of the vehicle frame. The fixed support arm 30 and the sliding support arm 29 form an adjustable support structure. The extension and retraction of the support cylinder 32 drives the sliding support arm 29 to slide within the fixed support arm 30, thereby adjusting the support length. The outrigger cylinder 28 at the end of the sliding support arm 29 further drives the support leg 31 to extend towards the ground, completing the final landing support action. Before performing the lifting task, the system controls the support cylinder and the outrigger cylinder to move in sequence, so that the vehicle body is lifted off the ground and the weight is borne by the five support devices, ensuring that the equipment remains stable and does not shake under high load operations.

[0061] This implementation provides a stable and flexibly deployable ground support system. Through a five-point support arrangement, a highly stable support platform is formed. The sliding connection structure allows the support length to be adjusted as needed to adapt to different terrains and working height requirements. The outrigger cylinder 28 and the support cylinder 32 respectively achieve vertical and horizontal adjustment, enhancing the coordination and precision of the support movements. After the support foot 31 lands, it effectively disperses the load, avoiding ground damage or equipment overturning, and significantly improving operational safety.

[0062] The number of support devices can be increased or decreased appropriately according to the overall vehicle length and lifting range; the outrigger cylinder 28 can be replaced with an electric screw lifting mechanism or a servo hydraulic cylinder to achieve higher control precision; the support foot 31 can adopt a structure with rubber shock-absorbing pads or an adjustable universal base plate to adapt to uneven terrain; the support device 6 can also be adjusted to a front-to-back moving type or a centrally located type according to the lifting center of gravity position; the connection method can be a quick-connect coupling or a modular structure to improve transportation and installation efficiency.

[0063] In one possible implementation, the folding telescopic assembly also includes a number of telescopic cylinders 9 equal to the number of telescopic arms 12; each cylinder is fixed by a hinge, with its fixed end connected to the folding arm 10 and its telescopic end connected to the corresponding telescopic arm 12, for driving the telescopic arms to extend and retract sequentially; the cylinders can be arranged externally or can be set as built-in depending on the specific installation conditions.

[0064] The telescopic cylinder 9 achieves linear displacement through the hydraulic control system, pushing the telescopic arm 12 to slide back and forth along the guide slider path to complete the extension or retraction action; multiple cylinders work in coordination to form a multi-stage sequential propulsion structure, and the movement rhythm is synchronized through the throttle valve or proportional valve to ensure the smoothness and stability of the telescopic arm's movement.

[0065] Multi-cylinder drive enables long-stroke, high-frequency telescopic movements, expanding the lifting range and applicable scenarios; the cylinder arrangement can be selected according to space conditions to adapt to different installation needs, improving the structural compatibility and on-site adaptability of the equipment.

[0066] The hydraulic cylinder can be a servo hydraulic cylinder or an electric telescopic rod to improve control accuracy; the built-in structure is suitable for compact spaces, while the external structure is convenient for maintenance; multi-stage hydraulic cylinders can also introduce a synchronous balancing mechanism to improve work synchronization.

[0067] Working principle: The vehicle adopts a stepped frame structure, consisting of an upper stepped frame 4 and a lower stepped frame 5. The upper stepped frame 4 serves as the load-bearing platform 1 for material transportation. The upper surface of the load-bearing platform is covered with anti-slip patterned plates to improve operational safety. The AGV wheel set 2 is installed on the lower part of the upper stepped frame 4. Through a power system consisting of an explosion-proof drive motor, an explosion-proof steering motor, a planetary reducer, and an encoder, the vehicle can achieve automatic steering and stationary rotation. The wheel set is equipped with anti-static composite wheels and proximity switches. Together with the explosion-proof main control box 37 and the AGV explosion-proof wheel control box 38, it forms a precise navigation control system, enabling the equipment to move autonomously and avoid obstacles in complex environments.

[0068] The lifting arm assembly consists of a primary arm 7, a secondary arm 8, a telescopic arm 12, and a folding arm 10. The primary arm 7 is connected to the lower step frame 5 via a slewing support 13, forming a 360° rotatable base, providing horizontal rotation freedom. Pitch cylinders 11 are installed on both sides of the primary arm to drive the secondary arm 8 for main pitch angle adjustment. A second pitch cylinder 34 is installed inside the secondary arm, which, through linkage with hinge plates 15 and 18, achieves precise angle adjustment, enhancing lifting positioning accuracy. The telescopic arm 12 and the folding arm 10 have symmetrical inclined surfaces 20 on their rectangular cross-sections, on which the front guide slider 19 and the rear guide slider 21 slide and engage. The slider surfaces have cross-shaped V-grooves 33, significantly reducing friction and improving guiding smoothness. To ensure the synchronization, smoothness, and structural strength of the telescopic movements, the equipment is equipped with five support devices 6 to ensure the overall stability of the vehicle during lifting and hoisting. The support devices include outrigger cylinders 28, sliding outriggers 29, fixed outriggers 30, support cylinders 32, and support feet 31. The support cylinders 32 and sliding outriggers 29 are hinged to drive the boom to extend horizontally, while the outrigger cylinders 28 drive the support feet 31 to press vertically downwards to the ground, forming a multi-point support frame. The tail support 23 is installed at the rear of the lower step frame 5 and together with the left and right supports, forms a three-dimensional force-bearing system to prevent the equipment from tipping over or swaying during hoisting. All support movements are controlled by the hydraulic system 3, and the main control system monitors the support status in real time to ensure structural safety and mechanical stability throughout the operation.

[0069] Operating procedures for integrated explosion-proof truck crane equipment:

[0070] Step 1: The device starts the vehicle system and completes the initial self-test.

[0071] The equipment is started via the main control panel, which sequentially wakes up the explosion-proof battery pack 36, the explosion-proof main control box 37, and the AGV explosion-proof wheel control box 38. The system performs status checks on each functional module, including whether the AGV wheel set 2, the lifting arm assembly, and the support device 6 are in the initial reset state, and confirms that the signals of the sensors, hydraulic system 3, and steering module are normal.

[0072] Step 2: The AGV wheel set drives the vehicle to move to the work position.

[0073] The explosion-proof drive motor and steering motor of the AGV wheel set 2 are controlled to guide the vehicle to the designated hoisting area according to the preset path or remote navigation system. During the movement, the explosion-proof proximity switch and the anti-collision radar work together to monitor environmental obstacles in real time and trigger braking or obstacle avoidance operations.

[0074] Step 3: Deploy the support device and stabilize the vehicle body

[0075] The hydraulic control system 3 sequentially drives the support cylinder 32 and the outrigger cylinder 28, the sliding arm 29 extends out from the fixed arm 30, and the support foot 31 presses down to contact the ground; the five sets of support devices 6 complete the triangular or rectangular arrangement to form a stable load-bearing frame, the vehicle body is lifted off the ground, and enters the lifting preparation state.

[0076] Step 4: Deploy and adjust the lifting arm assembly to the working position.

[0077] The first-stage boom 7 is controlled to rotate and align with the lifting target direction via the slewing support 13; the pitch cylinder 11 is activated to raise the angle of the first-stage boom; the pitch cylinder 34 is activated to precisely adjust the pitch angle of the second-stage boom 8; the telescopic cylinder 9 is driven in sequence to control the step-by-step extension of the telescopic boom 12, which, together with the front guide slider 19 and the rear guide slider 21, achieves smooth extension; if it is necessary to change the working height or avoid obstacles, the folding boom 10 can be folded simultaneously to achieve posture optimization.

[0078] Step 5: Perform hoisting operations and complete material handling.

[0079] After the target material is attached or adsorbed at the end of the boom, the boom length and elevation angle are adjusted according to the lifting requirements to complete the lifting, rotation or lateral translation of the material while ensuring stability; it can realize fixed-point stacking, equipment installation or transfer; all actions are coordinated and executed by the main control system to ensure path accuracy and load safety.

[0080] Step 6: Retract the lifting device and support structure

[0081] After completing the operation, the telescopic arm 12, folding arm 10 and pitch angle are retracted in sequence; the first-stage arm 7 is rotated to the storage angle; the outrigger cylinder 28 and support cylinder 32 are retracted to allow the vehicle body to land again; after the support device returns to its initial state, the vehicle can be moved again.

[0082] Step 7: Exit the work area and power off the system.

[0083] AGV wheel set 2 drives the vehicle away from the incident area and returns to the docking point; after the system completes the upload of the operation record data, the overall power-off operation is completed through the main control panel or remote control command, and the equipment enters the standby or shutdown state.

[0084] The foregoing has shown and described the basic principles, main features and advantages of this utility model. Various changes and modifications may be made to this utility model without departing from the spirit and scope thereof, and all such changes and modifications fall within the scope of this utility model as claimed.

Claims

1. A vehicle-mounted explosion-proof crane integrated equipment, comprising a vehicle frame structure, AGV wheel set (2), and lifting arm assembly, characterized in that: The overall frame structure is stepped, and the frame structure is divided into an upper stepped frame (4) and a lower stepped frame (5). The upper stepped frame (4) is set as a load-bearing platform (1). Support devices (6) are designed on the front and rear sides of the upper stepped frame (4). The rear end of the lower stepped frame (5) is designed with a tail support (23). The lower stepped frame (5) is equipped with a lifting arm assembly. The lifting arm assembly (5) includes a first-level arm (7), a second-level arm (8) and a folding telescopic assembly. The lower end of the first-level arm (7) is equipped with a slewing support (13). The slewing support (13) is fixed to the frame (1) by a mounting flange (23). One end of the second-level arm (8) is hinged to the upper end of the first-level arm (7). The lower part of the upper stepped frame (4) is equipped with an AGV wheel set (2). The upper stepped frame (4) is equipped with an explosion-proof battery pack (36), an AGV explosion-proof wheel control box (38), and an explosion-proof main control box (37).

2. The integrated explosion-proof crane device for a vehicle according to claim 1, characterized in that: The first-stage boom (7) is equipped with pitch cylinders (11) on both sides. The lower end of the pitch cylinders (11) is hinged to the slewing support (13), and the upper end of the pitch cylinders (11) is hinged to the second-stage boom (8).

3. The integrated explosion-proof crane device for a vehicle according to claim 1, characterized in that: The cross-sections of the telescopic arm (12) and the folding arm (10) are both set as rectangular structures, and the upper and lower ends of the cross-sections are respectively provided with symmetrical inclined surfaces (20). The first-stage telescopic arm (12) and the folding arm (10) are connected by guide sliders. The guide sliders include a front guide slider (19) and a rear guide slider (21). The front guide slider (19) is respectively set on the two inclined surfaces (20) on the upper side of the front end of the folding arm (10) and the telescopic arm (12), and the rear guide slider (21) is set on the two inclined surfaces (20) on the lower side of the rear end of the telescopic arm (12).

4. The integrated explosion-proof crane device for a vehicle according to claim 1, characterized in that: The second-stage boom (8) is equipped with a second pitch cylinder (34), and the telescopic end of the second pitch cylinder (34) is hinged with a first hinge plate (15) and a second hinge plate (18).

5. The integrated explosion-proof crane device for a vehicle according to claim 1, characterized in that: Five support devices (6) are provided, four of which are respectively located at the rear end and the two sides of the rear end of the upper step frame (4), and the other support device (6) is located at the rear end of the lower step frame (5). The support device (6) includes a support leg cylinder (28), a sliding arm (29), a fixed arm (30), a support foot (31), and a support cylinder (32). The fixed arm (30) is slidably connected to the sliding arm (29). The support cylinder (32) is hinged inside the fixed arm (30). The telescopic end of the support cylinder (32) is hinged to the sliding arm (29). The outer end of the sliding arm (29) is provided with a support leg cylinder (28), and the lower end of the support leg cylinder (28) is provided with a support foot (31).

6. The integrated explosion-proof crane device for a vehicle according to claim 1, characterized in that: The folding telescopic assembly also includes telescopic cylinders (9), the number of which is the same as that of the telescopic arm (12).

Images