Electric loading system for truck-mounted crane

Abstract

This invention relates to an electric superstructure system for a truck-mounted crane, comprising a crane frame structure. The crane frame structure includes a boom, a first guide roller, a second guide roller, a connecting platform, a lifting rope, and a hook. The upper ends of the boom are each rotatably connected to a first guide roller via a first bracket. A connecting platform is located on the lower side of one end of the boom, and the other end of the boom is rotatably connected to a second guide roller via a second bracket. Reduced usage and maintenance costs: A single electric drive system, such as a winding motor and a servo motor, replaces the traditional dual-system design of hydraulic and electric motors. This reduces the number of high-power devices, simplifies the structure, lowers energy consumption and maintenance difficulty, and avoids the leakage, contamination, and temperature sensitivity issues of hydraulic systems.

Description

Technical Field

[0001] This invention belongs to the field of electric superstructure for truck-mounted cranes, specifically an electric superstructure system for truck-mounted cranes. Background Technology

[0002] Truck-mounted cranes, as lifting equipment integrated into vehicles, are widely used in logistics, construction sites, and emergency rescue for cargo lifting and handling. Traditional truck-mounted cranes often rely on a dual-power mechanism: a hydraulic system to drive the boom lifting and an electric motor to drive the rope winding. While functional, this approach suffers from complex structures, high maintenance costs, and high energy consumption. Furthermore, the hydraulic system's susceptibility to leakage, poor pollution resistance, and the need for continuous engine operation further limit its application in efficient and environmentally friendly scenarios. With advancements in electrification technology, modern truck-mounted crane designs are shifting towards integrated electric systems, incorporating slow-release and locking mechanisms to simplify the power source and improve stability and flexibility. This truck-mounted crane electric superstructure system addresses the pain points of traditional solutions through innovative electric drive and intelligent locking, driving the development of truck-mounted cranes towards lower costs and higher efficiency. Summary of the Invention

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0004] Given the following technical problems in the existing technology: Traditional truck-mounted cranes usually use two independent power units, namely a hydraulic system to drive the boom lifting and an electric motor system to drive the rope winding, which leads to complex structure, high operating energy consumption and increased maintenance costs; at the same time, the hydraulic system also has disadvantages such as poor pollution resistance, temperature sensitivity, easy leakage, high manufacturing difficulty and the need to keep the engine running, which further increases the overall use and maintenance costs.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an electric superstructure system for truck-mounted cranes, comprising,

[0006] The hanger structure includes a boom, a guide roller 1, a guide roller 2, a connecting platform, a lifting rope, and a hook. The upper two ends of the boom are rotatably connected to a guide roller 1 via a bracket 1. A connecting platform is provided on the lower side of one end of the boom. The other end of the boom is rotatably connected to a guide roller 2 via a bracket 2. The lifting rope is wrapped around the outside of the guide roller 1 and the guide roller 2, and a hook is provided at one end of the lifting rope.

[0007] The base frame structure includes a support plate, a cylindrical base, a frustum, a base frame, a load-bearing frame, a winding motor, and a winding drum. The top of the support plate is equipped with a cylindrical base, which is rotatably connected to the frustum. The top of the frustum is equipped with the base frame. A load-bearing frame is equipped on one side of the base frame, which is rotatably connected to the winding drum. The winding motor is mounted on the load-bearing frame, and the power output end of the winding motor is fixedly connected to the winding drum. The lifting rope is wound around the winding drum.

[0008] The boom is equipped with a slow-release mechanism, and the top of the boom is equipped with a locking component;

[0009] By integrating an electric-driven winding motor and a rope winding system with a locking component, the boom lifting and hook raising are coordinated and controlled, replacing the traditional hydraulic and electric dual system, simplifying the structure and reducing energy consumption and maintenance costs.

[0010] As a preferred technical solution for an electric superstructure system for a truck-mounted crane, the slow-release mechanism includes a movable frame, a movable block, a limiting short shaft, a limiting ring, and a gas spring. The crane structure also includes a limiting groove and a limiting slot. A limiting groove is provided on the front and back of the boom, and a limiting slot is provided on the vertical surface of the limiting groove. The movable frame is movably connected to the boom. A movable block is provided on each of the two sides of the inner side of the movable frame. The movable block corresponds to the limiting groove and is slidably connected to the corresponding limiting groove. A limiting short shaft is provided on the front and back of the movable frame. The limiting short shaft is sleeved with a limiting ring. The limiting ring is connected to the movable end of a gas spring. The fixed end of the gas spring is rotatably connected to the base frame.

[0011] The sliding engagement between the gas spring and the movable block in the limiting groove restricts the boom from swinging down unnecessarily, improves lifting stability, and avoids common hydraulic system problems such as leakage and contamination.

[0012] As a preferred technical solution for an electric superstructure system for a truck-mounted crane, the slow-release mechanism also includes a roller. The end of the movable block away from the movable frame is rotatably connected to the roller, the roller is located in the limiting groove, and the roller is movably connected to the upper side of the limiting groove.

[0013] The movable connection of the roller in the limiting groove reduces sliding friction, improves the smoothness of the sliding block in the limiting groove, enhances the stability of the slow-release mechanism, and reduces maintenance requirements.

[0014] As a preferred technical solution for an electric superstructure system for truck-mounted cranes, the underframe structure also includes a rotary motor. The rotary motor is installed inside the cylindrical base, and the power output end of the rotary motor is connected to the frustum.

[0015] A rotary motor drives the frustum to rotate, enabling angle adjustment of the base frame structure, enhancing the flexibility of hoisting direction, replacing the complex rotating mechanism driven by hydraulics, and reducing manufacturing and maintenance costs.

[0016] As a preferred technical solution for an electric superstructure system for truck-mounted cranes, both ends of the support plate are equipped with mounting plates, and the mounting plates are equipped with mounting and fixing holes.

[0017] The mounting plate and fixing hole design facilitates quick fixation of the support plate to the vehicle, simplifies the installation process, improves system adaptability, and reduces the complexity of installing traditional hydraulic systems.

[0018] As a preferred technical solution for an electric superstructure system for truck-mounted cranes, the locking assembly includes a support platform, a steering wheel, and a center roller. The support platform has a sliding shaft that rotates inside. A center roller is located in the middle of the sliding shaft, and a clamping ring and a locking ring are respectively fitted at both ends. Several locking ribs are arranged in a ring on both the side of the clamping ring facing the locking ring and the side of the locking ring facing the clamping ring. The locking ribs are triangular prisms. The locking ribs on the clamping ring and the locking ring located on the same side of the center roller can lock each other.

[0019] The support platform is also rotatably connected to two directional wheels. The directional wheels and the central roller are arranged in an inverted triangular shape. The hoisting rope passes through one directional wheel, then through the central roller, and finally through the other directional wheel. The hoisting rope passes through more than three-quarters of the circumference of the clamping ring.

[0020] The locking assembly reliably clamps the sling through the clamping ring and the locking ribs of the locking ring, simplifying the locking operation, replacing the hydraulic locking device, and improving operational efficiency and safety.

[0021] As a preferred technical solution for the electric superstructure system of truck-mounted crane, several magnets are arranged in a ring array on both sides of the center roller, and several magnets are arranged in a ring array on the locking ring. The magnets repel each other.

[0022] The repulsion design between magnet two and magnet one enhances the positioning accuracy of the locking ring and the center roller, prevents accidental loosening, improves the stability of the suspension rope lock, and reduces the maintenance frequency.

[0023] As a preferred technical solution for an electric superstructure system for truck-mounted cranes, the locking assembly also includes a recovery pit, a movable plate, a linkage frame, and a fulcrum frame. A recovery pit is provided on each of the two sides of the inner side of the support platform, and a locking ring is movably inserted into the recovery pit. A movable plate is movably connected to each of the two sides of the support platform, and a connecting rod is provided on the movable plate. The connecting rod passes through the support platform and is fixedly connected to the locking ring. The connecting rod is movably connected to the support platform. A constraint groove is provided on the linkage frame, and a connecting column is movably connected in the constraint groove. The connecting column is set on the movable plate. The linkage frame is movably connected to the pressing mechanism. A fulcrum frame is provided on the support platform, and the fulcrum frame is hinged to the middle of the linkage frame.

[0024] The hinged design of the linkage frame and the movable plate, through the compression mechanism, precisely controls the movement of the locking ring, enabling the rapid locking and releasing of the suspension rope, simplifying operation and reducing energy consumption.

[0025] As a preferred technical solution for an electric superstructure system for truck-mounted cranes, the locking component also includes clamping columns, and the clamping ring is provided with several clamping columns in a circular array, with the clamping columns being movably connected to the lifting rope;

[0026] The ring array design of the clamping columns increases the contact area between the clamping rings and the lifting rope, improves the locking force, reduces the risk of rope slippage, and enhances lifting safety, making it superior to traditional hydraulic clamping devices.

[0027] As a preferred technical solution for an electric superstructure system for truck-mounted cranes, the extrusion mechanism includes a servo motor, a movable plate, a threaded rod, an extrusion table, and a limiting post. The servo motor and the limiting post are mounted on the support platform. The power output end of the servo motor is connected to the threaded rod, which is threadedly connected to the extrusion table. A movable plate is mounted at the bottom of the extrusion table. The movable plate is inserted into the limiting post and is movably connected to the limiting post. The linkage frame is J-shaped and is movably connected to the outer side of the extrusion table.

[0028] Servo motors drive the threaded rod and extrusion table to achieve precise movement of the linkage frame. Combined with elastic constraint arc plates to clamp the lifting rope, it provides an efficient electric locking mechanism, replacing the hydraulic system and reducing energy consumption and maintenance costs.

[0029] The beneficial effects of the electric superstructure system for truck-mounted cranes of the present invention are as follows: reduced use and maintenance costs: the use of a single electric drive system, such as a winding motor and a servo motor, replaces the traditional dual-system design of hydraulic and electric motor, reducing the number of high-power devices, simplifying the structure, reducing energy consumption and maintenance difficulty, and avoiding leakage, pollution and temperature sensitivity problems of hydraulic systems.

[0030] Enhance operational flexibility and efficiency: The locking mechanism between the locking components and the lifting ropes enables seamless switching between two lifting modes: direct lifting mode of the hook and lifting mode of the boom. This allows for flexible adjustments based on different scenarios, such as cargo height or position, thereby improving lifting efficiency.

[0031] Enhanced stability and safety: The gas spring and movable block in the slow-release mechanism work together with the limiting groove to limit the boom from swinging down unnecessarily; the clamping ring and locking ring of the locking assembly achieve reliable locking of the lifting rope through the locking ribs to prevent accidental slippage and ensure stability during the lifting process;

[0032] Structural optimization and adaptability: The rotating design of the underframe structure (combined with the mounting plate of the frustum-shaped support plate) facilitates vehicle fixation; the overall electrification design improves the system's response speed and accuracy, making it suitable for various truck-mounted crane scenarios. Attached Figure Description

[0033] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0034] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0035] Figure 2 This is a cross-sectional view of the front of the present invention;

[0036] Figure 3 This is a schematic cross-sectional view of the side of the present invention;

[0037] Figure 4 For the present invention Figure 1 A magnified schematic diagram of part A in the middle section;

[0038] Figure 5 For the present invention Figure 2 A partially enlarged structural diagram of section B;

[0039] Figure 6 This is a schematic diagram showing the positional relationship between the central roller and the elastic constraint arc plate of the present invention.

[0040] Reference numerals: 100, Hanger structure; 101, Lifting arm; 102, Guide roller one; 103, Guide roller two; 104, Limiting groove; 105, Limiting slot; 106, Connecting platform; 107, Lifting rope; 108, Lifting hook; 200, Slow-release mechanism; 201, Movable frame; 202, Movable block; 203, Limiting short shaft; 204, Limiting ring; 205, Gas spring; 206, Roller; 300, Base frame structure; 301, Support plate; 302, Cylindrical base; 303, Frustum; 304, Base frame; 305, Bearing frame; 306, Rewinding motor; 3 07. Rewind drum; 308. Rotary motor; 400. Locking assembly; 401. Support platform; 402. Limiting post; 403. Extrusion table; 404. Threaded rod; 405. Servo motor; 406. Linkage frame; 407. Pivot frame; 408. Clamping ring; 409. Locking ring; 410. Center roller; 411. Movable disc; 412. Movable plate; 413. Locking rib; 414. Rewind pit; 415. Directional wheel; 416. Magnet one; 417. Magnet two; 418. Constraint groove; 419. Clamping post; 420. Elastic constraint arc plate. Detailed Implementation

[0041] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0042] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0043] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0044] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0045] like Figures 1-6 As shown, this invention proposes an electric superstructure system for truck-mounted cranes, comprising:

[0046] The hanger structure 100 includes a boom 101, a guide roller 102, a guide roller 2 103, a connecting platform 106, a lifting rope 107, and a hook 108. The upper two ends of the boom 101 are rotatably connected to a guide roller 102 via a bracket 1. A connecting platform 106 is provided on the lower side of one end of the boom 101. The other end of the boom 101 is rotatably connected to a guide roller 2 103 via a bracket 2. The lifting rope 107 is wrapped around the outside of the guide roller 102 and the guide roller 2 103. A hook 108 is provided on one end of the lifting rope 107.

[0047] The base frame structure 300 includes a support plate 301, a cylindrical seat 302, a frustum 303, a base frame 304, a support frame 305, a winding motor 306, and a winding drum 307. The top of the support plate 301 is provided with a cylindrical seat 302, and the frustum 303 is rotatably connected to the cylindrical seat 302. The top of the frustum 303 is provided with the base frame 304. The support frame 305 is provided on one side of the base frame 304, and the winding drum 307 is rotatably connected to the support frame 305. The winding motor 306 is provided on the support frame 305, and the power output end of the winding motor 306 is fixedly connected to the winding drum 307. The lifting rope 107 is wound around the winding drum 307.

[0048] A slow-release mechanism 200 is provided on the boom 101, and a locking component 400 is provided at the top of the boom 101;

[0049] By integrating an electric-driven winding motor 306 with the rope winding system 107, and combining it with a locking component 400, the lifting of the boom 101 and the raising and lowering of the hook 108 are coordinated and controlled, replacing the traditional hydraulic and electric dual system, simplifying the structure and reducing energy consumption and maintenance costs.

[0050] The slow-release mechanism 200 includes a movable frame 201, a movable block 202, a limiting short shaft 203, a limiting ring 204, and a gas spring 205. The hanger structure 100 also includes a limiting groove 104 and a limiting slot 105. A limiting groove 104 is provided on the front and back of the boom 101, and a limiting slot 105 is provided on the vertical surface of the limiting groove 104. The movable frame 201 is movably connected to the boom 101. A movable block 202 is provided on both sides of the inner side of the movable frame 201. The movable block 202 corresponds to the limiting groove 104 and is slidably connected to the corresponding limiting groove 104. A limiting short shaft 203 is provided on the front and back of the movable frame 201. The limiting short shaft 203 is sleeved with a limiting ring 204. The limiting ring 204 is connected to the movable end of a gas spring 205. The fixed end of the gas spring 205 is rotatably connected to the base frame 304.

[0051] The sliding engagement between the gas spring 205 and the movable block 202 in the limiting groove 104 restricts the boom 101 from swinging down without end, improves lifting stability, and avoids common hydraulic system leakage and contamination problems.

[0052] The slow-release mechanism 200 also includes a roller 206. The end of the movable block 202 away from the movable frame 201 is rotatably connected to the roller 206. The roller 206 is located in the limiting groove 105 and is movably connected to the upper side of the limiting groove 105.

[0053] The movable connection of the roller 206 in the limiting groove 105 reduces sliding friction, improves the smoothness of sliding of the movable block 202 in the limiting groove 104, enhances the stability of the slow-release mechanism 200, and reduces maintenance requirements.

[0054] As a preferred technical solution for an electric superstructure system for truck-mounted cranes, the underframe structure 300 also includes a rotary motor 308. The rotary motor 308 is installed on the inner side of the cylindrical base 302, and the power output end of the rotary motor 308 is connected to the frustum 303.

[0055] The rotary motor 308 drives the frustum 303 to rotate, enabling the angle adjustment of the base frame structure 300, enhancing the flexibility of the hoisting direction, replacing the complex rotating mechanism driven by hydraulics, and reducing manufacturing and maintenance costs.

[0056] Both ends of the support plate 301 are provided with mounting plates, and each mounting plate is provided with mounting and fixing holes;

[0057] The mounting plate and fixing hole design facilitates the quick fixing of the support plate 301 to the vehicle, simplifies the installation process, improves system adaptability, and reduces the complexity of traditional hydraulic system installation.

[0058] The locking assembly 400 includes a support platform 401, a steering wheel 415, and a center roller 410. The support platform 401 has a sliding shaft rotatably mounted inside. The center roller 410 is located in the middle of the sliding shaft, and a clamping ring 408 and a locking ring 409 are respectively sleeved at both ends. Several locking ribs 413 are arranged in a ring on both the side of the clamping ring 408 facing the locking ring 409 and the side of the locking ring 409 facing the clamping ring 408. The locking ribs 413 are triangular prisms. The locking ribs 413 on the clamping ring 408 and the locking ring 409 located on the same side of the center roller 410 can lock each other.

[0059] The support platform 401 is also rotatably connected to two directional wheels 415. The directional wheels 415 and the center roller 410 are arranged in an inverted triangular shape. The suspension rope 107 passes through one directional wheel 415, then through the center roller 410, and finally through the other directional wheel 415. The suspension rope 107 passes through more than three-quarters of the circumference of the clamping ring 408.

[0060] The locking assembly 400 reliably clamps the lifting rope 107 through the locking ribs 413 of the clamping ring 408 and the locking ring 409, simplifying the locking operation, replacing the hydraulic locking device, and improving operating efficiency and safety.

[0061] Several magnets 417 arranged in a ring array are provided on both sides of the central roller 410, and several magnets 416 arranged in a ring array are also provided on the locking ring 409. The magnets 417 and magnets 416 repel each other.

[0062] The repulsion design between magnet 2 417 and magnet 1 416 enhances the positioning accuracy of locking ring 409 and center roller 410, prevents accidental loosening, improves the stability of locking rope 107, and reduces maintenance frequency.

[0063] The locking assembly 400 also includes a recycling pit 414, a movable plate 411, a linkage frame 406, and a fulcrum frame 407. A recycling pit 414 is provided on each of the two sides of the inner side of the support platform 401. A locking ring 409 is movably inserted into the recycling pit 414. A movable plate 411 is movably connected to each of the two sides of the support platform 401. A connecting rod is provided on the movable plate 411. The connecting rod passes through the support platform 401 and is fixedly connected to the locking ring 409. The connecting rod is movably connected to the support platform 401. A constraint groove 418 is provided on the linkage frame 406. A connecting column is movably connected in the constraint groove 418. The connecting column is provided on the movable plate 411. The linkage frame 406 is movably connected to the extrusion mechanism. A fulcrum frame 407 is provided on the support platform 401. The fulcrum frame 407 is hinged to the middle of the linkage frame 406.

[0064] The hinged design of the linkage frame 406 and the movable plate 411, through the compression mechanism, precisely controls the movement of the locking ring 409, realizing the rapid locking and releasing of the suspension rope 107, simplifying operation and reducing energy consumption.

[0065] The locking assembly 400 also includes clamping posts 419. Several clamping posts 419 are arranged in a circular array on the clamping ring 408. The clamping posts 419 are movably connected to the suspension rope 107.

[0066] The ring array design of the clamping column 419 increases the contact area between the clamping ring 408 and the lifting rope 107, improves the locking force, reduces the risk of rope slippage, and enhances the safety of lifting, which is superior to traditional hydraulic clamping devices.

[0067] The extrusion mechanism includes a servo motor 405, a movable plate 412, a threaded rod 404, an extrusion table 403, and a limiting post 402. The servo motor 405 and the limiting post 402 are mounted on the support table 401. The power output end of the servo motor 405 is connected to the threaded rod 404. The threaded rod 404 is threadedly connected to the extrusion table 403. The bottom of the extrusion table 403 is provided with a movable plate 412. The movable plate 412 is inserted into the limiting post 402. The movable plate 412 and the limiting post 402 are movably connected. The linkage frame 406 is J-shaped and is movably connected to the outer side of the extrusion table 403.

[0068] Servo motor 405 drives threaded rod 404 and pressing table 403 to achieve precise movement of linkage frame 406. In conjunction with elastic constraint arc plate 420, it clamps lifting rope 107, providing an efficient electric locking mechanism that replaces hydraulic system and reduces energy consumption and maintenance costs.

[0069] The locking ring 409 is movably connected to the outer ring of the center roller 410.

[0070] When the gas spring 205 in the slow-release mechanism 200 is in its shortest position, the boom 101 remains horizontal. The movable block 202 abuts against one end of the limiting groove 104, which can limit the downward swing of the boom 101 and prevent the boom 101 from swinging down without reason.

[0071] The number of clamping posts 419 is twice the number of elastic constraint arc plates 420.

[0072] Two sets of constraint mechanisms are provided on the central roller 410. Each set of constraint mechanisms consists of several elastic constraint arc plates 420. The elastic constraint arc plates 420 are arranged in a ring on the central roller 410. The material of the elastic constraint arc plates 420 is 3J60 elastic alloy.

[0073] The specific implementation method is as follows: fix the support plate 301 to the vehicle, weld or connect it to the vehicle by passing bolts through the mounting holes, start the winding motor 306 to drive the winding drum 307 to rotate, so that the lifting rope 107 is wound up, so that the hook 108 rises, and the object hooked by the hook 108 also rises with it.

[0074] The servo motor 405 starts and controls the threaded rod 404 to rotate. The threaded rod 404 controls the extrusion table 403 to rise. The extrusion table 403 extrudes the two connecting frames 406 to separate. The connecting frames 406 swing and extrudes the movable disc 411 to bring them closer together. The movable disc 411 extrudes the locking ring 409 to overcome the repulsive force between magnet 1 416 and magnet 2 417, causing the locking ring 409 to come into contact with and extrude the clamping ring 408. This causes the locking ribs 413 on the clamping ring 408 and the locking ring 409, located on the same side of the central roller 410, to lock each other, preventing the clamping ring 408 from rotating. The clamping posts 419 on the different locking rings 409 bring them closer together. 9 can directly clamp the lifting rope 107, or clamp the lifting rope 107 by squeezing the elastic constraint arc plate 420, so that the lifting rope 107 is locked relative to the locking component 400 and even to the boom 101. When the winding drum 307 continues to wind the lifting rope 107, it will pull the boom 101 to swing upward around the connection point between the connecting platform 106 and the base frame 304. Through the cooperation of the base frame structure 300 and the locking component 400, two modes can be switched. In one mode, the locking component 400 is not locked to the lifting rope 107, and the winding drum 307 winds the lifting rope 107, so that the lifting rope 107 continuously shuttles on the guide roller 2 103 and the guide roller 1 102, directly causing the hook 108 to move upward.

[0075] Another mode is: the locking component 400 is locked to the lifting rope 107, and the winding drum 307 raises the boom 101 by pulling the lifting rope 107, so as to further lift the hook 108 and the goods on the hook 108.

[0076] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0077] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A truck-mounted crane electric loading system, characterized by: include, The hanger structure (100) includes a boom (101), a guide roller 1 (102), a guide roller 2 (103), a connecting platform (106), a lifting rope (107), and a hook (108). The upper two ends of the boom (101) are respectively rotatably connected to a guide roller 1 (102) through a bracket 1. A connecting platform (106) is provided on the lower side of one end of the boom (101). The other end of the boom (101) is rotatably connected to a guide roller 2 (103) through a bracket 2. The lifting rope (107) is wrapped around the outside of the guide roller 1 (102) and the guide roller 2 (103). A hook (108) is provided on one end of the lifting rope (107). The base frame structure (300) includes a support plate (301), a cylindrical seat (302), a frustum (303), a base frame (304), a support frame (305), a winding motor (306), and a winding drum (307). The top of the support plate (301) is provided with a cylindrical seat (302), which is rotatably connected to a frustum (303). The top of the frustum (303) is provided with a base frame (304), and a support frame (305) is provided on one side of the base frame (304). The support frame (305) is rotatably connected to a winding drum (307), and a winding motor (306) is provided on the support frame (305). The power output end of the winding motor (306) is fixedly connected to the winding drum (307), and the lifting rope (107) is wound around the winding drum (307). The boom (101) is provided with a slow-release mechanism (200), and the top of the boom (101) is provided with a locking component (400). The locking assembly (400) includes a support platform (401), a steering wheel (415), and a center roller (410). The support platform (401) has a sliding shaft internally rotatably mounted. A center roller (410) is located in the middle of the sliding shaft, and a clamping ring (408) and a locking ring (409) are respectively fitted to both ends. A number of rings are arranged in a ring array on both the side of the clamping ring (408) facing the locking ring (409) and the side of the locking ring (409) facing the clamping ring (408). A locking prism (413) is a triangular prism; two directional wheels (415) are rotatably connected inside the support platform (401). The directional wheels (415) and the center roller (410) are arranged in an inverted triangular shape. The suspension rope (107) passes through one directional wheel (415), then through the center roller (410), and finally through the other directional wheel (415). The suspension rope (107) passes through more than three-quarters of the circumference of the clamping ring (408). The extrusion mechanism includes a servo motor (405), a movable plate (412), a threaded rod (404), an extrusion table (403), and a limiting post (402). The servo motor (405) and the limiting post (402) are provided on the support platform (401). The power output end of the servo motor (405) is connected to the threaded rod (404). The threaded rod (404) is threadedly connected to the extrusion table (403). The bottom of the extrusion table (403) is provided with a movable plate (412). The movable plate (412) is inserted into the limiting post (402). The movable plate (412) and the limiting post (402) are movably connected. The linkage frame (406) is J-shaped and is movably connected to the outside of the extrusion table (403).

2. The electric superstructure system for a truck-mounted crane according to claim 1, characterized in that: The slow-release mechanism (200) includes a movable frame (201), a movable block (202), a limiting short shaft (203), a limiting ring (204), and a gas spring (205). The hanger structure (100) also includes a limiting groove (104) and a limiting slot (105). A limiting groove (104) is provided on the front and back of the boom (101), and a limiting slot (105) is provided on the vertical surface of the limiting groove (104). The movable frame (201) is movably connected to the boom (101). On the inner side, there is a movable block (202) on each side. The movable block (202) corresponds to the limiting groove (104). The movable block (202) is slidably connected to the corresponding limiting groove (104). The front and back of the movable frame (201) are respectively provided with a limiting short shaft (203). The limiting short shaft (203) is sleeved with a limiting ring (204). The limiting ring (204) is connected to the movable end of a gas spring (205). The fixed end of the gas spring (205) is rotatably connected to the base frame (304).

3. The electric superstructure system for a truck-mounted crane according to claim 2, characterized in that: The slow-release mechanism (200) also includes a roller (206). The roller (206) is rotatably connected to one end of the movable block (202) away from the movable frame (201). The roller (206) is located in the limiting groove (105). The roller (206) is movably connected to the upper side of the limiting groove (105).

4. The electric superstructure system for a truck-mounted crane according to claim 1, characterized in that: The base frame structure (300) also includes a rotary motor (308), and the rotary motor (308) is provided on the inner side of the cylindrical base (302). The power output end of the rotary motor (308) is connected to the frustum (303).

5. The electric superstructure system for a truck-mounted crane according to claim 1, characterized in that: The support plate (301) has mounting plates at both ends, and mounting plates have mounting holes.

6. The electric superstructure system for a truck-mounted crane according to claim 1, characterized in that: Several magnets (417) in a ring array are arranged on both sides of the central roller (410), and several magnets (416) in a ring array are also arranged on the locking ring (409). Magnets (417) and magnets (416) repel each other.

7. The electric superstructure system for a truck-mounted crane according to claim 1, characterized in that: The locking assembly (400) also includes a retrieval pit (414), a movable plate (411), a linkage frame (406), and a fulcrum frame (407). A retrieval pit (414) is provided on each of the two inner sides of the support platform (401). A locking ring (409) is movably inserted into each retrieval pit (414). A movable plate (411) is movably connected to each of the two sides of the support platform (401). A connecting rod is provided on the movable plate (411), and the connecting rod passes through the support platform (407). 401) is fixedly connected to the locking ring (409), the connecting rod is movably connected to the support platform (401), the linkage frame (406) is provided with a constraint groove (418), a connecting column is movably connected in the constraint groove (418), the connecting column is set on the movable plate (411), the linkage frame (406) is movably connected to the extrusion mechanism, the support platform (401) is provided with a fulcrum frame (407), and the fulcrum frame (407) is hinged to the middle of the linkage frame (406).

8. The electric superstructure system for a truck-mounted crane according to claim 1, characterized in that: The locking assembly (400) also includes clamping posts (419), and the clamping ring (408) is provided with several clamping posts (419) arranged in a circular array, and the clamping posts (419) are movably connected to the suspension rope (107).

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