Electric loading system of truck-mounted crane

Abstract

The invention relates to a truck-mounted crane electric loading system which comprises a hanging bracket structure, the hanging bracket structure comprises a hanging arm, first guide rollers, second guide rollers, a connecting table, a hanging rope and a hanging hook, the two ends of the upper side of the hanging arm are each rotationally connected with one first guide roller through a first support, and the connecting table is arranged on the lower side of one end of the hanging arm; and the other end of the suspension arm is rotationally connected with a guide roller II through a bracket II. A single electric driving system, such as a winding motor and a servo motor, is adopted to replace the traditional double-system design of hydraulic and motor, so that the number of high-power devices is reduced, the structure is simplified, the energy consumption and the maintenance difficulty are reduced, and the problems of leakage, pollution and temperature sensitivity of a hydraulic system are avoided.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of electric loading of truck-mounted cranes, and particularly relates to an electric loading system of a truck-mounted crane. BACKGROUND

[0002] As a kind of integrated lifting equipment in vehicle, truck-mounted crane is widely used in logistics transportation, construction site and emergency rescue, etc., for cargo hoisting and handling. Traditional truck-mounted crane relies on hydraulic system to drive lifting arm lifting and motor to drive rope winding, which has double power mechanism. Although the function is realized, it has problems of complex structure, high maintenance cost and large energy consumption. In addition, the hydraulic system has characteristics of easy leakage, poor anti-pollution and continuous engine operation, which further limits its application in efficient and environmentally friendly scenarios. With the progress of electric technology, modern truck-mounted crane design starts to integrate electric system and introduces buffer and locking mechanism to simplify power source, improve stability and flexibility. The electric loading system of truck-mounted crane solves the pain points of traditional scheme through electric drive and intelligent locking innovation, promotes the development of truck-mounted crane to low cost and high efficiency, and thus proposes an electric loading system of truck-mounted crane. SUMMARY

[0003] This section is intended to summarize some aspects of the embodiments of the present application and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of the specification of the present application to avoid obscuring the purpose of this section, abstract and title, and such simplifications or omissions cannot be used to limit the scope of the present application.

[0004] In view of the following technical problems in the prior art: traditional truck-mounted crane usually adopts two independent power devices of hydraulic system to drive lifting arm lifting and motor system to drive rope winding, resulting in complex structure, high operating energy consumption and increased maintenance cost. At the same time, the hydraulic system also has disadvantages of poor anti-pollution ability, temperature sensitivity, easy leakage, high manufacturing difficulty and the need to keep the engine running, which further increases the overall use and maintenance cost.

[0005] To solve the above technical problems, the present application provides the following technical scheme: an electric loading system of a truck-mounted crane, comprising,

[0006] The lifting frame structure comprises a lifting arm, a guide roller one, a guide roller two, a connecting table, a lifting rope and a lifting hook. Two ends of the upper side of the lifting arm are rotatably connected with one guide roller one through a support one respectively. The lower side of one end of the lifting arm is provided with a connecting table. The other end of the lifting arm is rotatably connected with a guide roller two through a support two. The lifting rope is wound around the outer side of the guide roller one and the guide roller two. One end of the lifting rope is provided with a lifting hook.

[0007] The chassis structure comprises a support plate, a cylindrical seat, a circular table, a chassis, a bearing frame, a winding motor and a winding drum, the top end of the support plate is provided with the cylindrical seat, the cylindrical seat is rotationally connected with the circular table, the top end of the circular table is provided with the chassis, one side of the chassis is provided with the bearing frame, the bearing frame is rotationally connected with the winding drum, the bearing frame is provided with the winding motor, the power output end of the winding motor is fixedly connected with the winding drum, and the lifting rope is wound around the winding drum;

[0008] The hoisting arm is provided with a slow-release mechanism, and the top end of the hoisting arm is provided with a locking assembly.

[0009] The winding motor and the lifting rope winding system are integrated with electric drive, the locking assembly is combined to realize the cooperative control of the hoisting arm lifting and the lifting hook lifting, the traditional hydraulic and motor double systems are replaced, the structure is simplified, and the energy consumption and maintenance cost are reduced.

[0010] As a preferred technical scheme of the electric loading system of the truck crane, the slow-release mechanism comprises a movable frame, a movable block, a limiting short shaft, a limiting ring and an air spring, the hoisting frame structure further comprises a limiting groove and a limiting slot, one limiting groove is formed in the front face and the back face of the hoisting arm respectively, one limiting slot is formed in the vertical face of the limiting groove, the movable frame is movably connected with the hoisting arm, two movable blocks are arranged on the inner side of the movable frame respectively, the movable blocks correspond to the limiting grooves, the movable blocks are movably connected with the corresponding limiting grooves, one limiting short shaft is arranged on the front face and the back face of the movable frame respectively, the limiting short shaft is sleeved with the limiting ring, the limiting ring is connected with the movable end of one air spring respectively, and the fixed end of the air spring is rotationally connected with the chassis.

[0011] The air spring and the movable block are movably matched in the limiting groove, the hoisting arm is prevented from swinging downward, the hoisting stability is improved, and the leakage and pollution problems of the hydraulic system are avoided.

[0012] As a preferred technical scheme of the electric loading system of the truck crane, the slow-release mechanism further comprises a roller, the roller is rotationally connected with one end of the movable block away from the movable frame, the roller is located in the limiting slot, and the roller is movably connected with the upper side of the limiting slot.

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

[0014] As a preferred technical scheme of the electric loading system of the truck crane, the chassis structure further comprises a rotary motor, the inner side of the cylindrical seat is provided with the rotary motor, and the power output end of the rotary motor is connected with the circular table.

[0015] The rotary motor drives the circular table to rotate, the angle of the chassis structure is adjusted, the flexibility of the hoisting direction is enhanced, the complex rotary mechanism driven by the hydraulic pressure is replaced, and the manufacturing and maintenance costs are reduced.

[0016] As a kind of preferred technical scheme of electric loading system of truck-mounted crane, the both ends of the support plate are provided with mounting plates, and the mounting plates are provided with mounting fixing holes;

[0017] The mounting plate and the fixing hole are designed to facilitate the quick fixing of the support plate and the vehicle, simplify the installation process, improve the system adaptability, and reduce the complexity of the traditional hydraulic system installation.

[0018] As a kind of preferred technical scheme of electric loading system of truck-mounted crane, the locking assembly includes a support table, a steering wheel and a center roller, a sliding shaft is rotatably arranged in the support table, the center roller is arranged in the middle of the sliding shaft, one clamping ring and one locking ring are respectively sleeved at both ends of the sliding shaft, a plurality of locking ribs are annularly arranged on one side of the clamping ring facing the locking ring and one side of the locking ring facing the clamping ring, the locking ribs are triangular prisms, and the locking ribs on the clamping ring and the locking ring on the same side of the center roller can be clamped to each other.

[0019] Two steering wheels are also rotatably connected in the support table, the steering wheels and the center roller are in inverted V shape, the lifting rope passes through one steering wheel, then passes through the center roller, and finally passes through the other steering wheel, and the lifting rope passes through more than three quarters of the circumferential surface of the clamping ring.

[0020] The locking assembly realizes reliable clamping of the lifting rope through the locking ribs of the clamping ring and the locking ring, simplifies the locking operation, replaces the hydraulic locking device, and improves the operation efficiency and safety.

[0021] As a kind of preferred technical scheme of electric loading system of truck-mounted crane, a plurality of annularly arranged magnet two are arranged on both sides of the center roller, and a plurality of annularly arranged magnet one are arranged on the locking ring, and the magnet two and the magnet one repel each other.

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

[0023] As a kind of preferred technical scheme of electric loading system of truck-mounted crane, the locking assembly further includes a recovery pit, a movable disc, a linkage frame and a fulcrum frame, one recovery pit is respectively formed on both sides of the inner side of the support table, the locking ring is movably inserted into the recovery pit, one movable disc is movably connected to each side of the support table, the connecting rod is arranged on the movable disc, the connecting rod is fixedly connected with the locking ring through the support table, the connecting rod is movably connected with the support table, the linkage frame is provided with a constraint groove, the connecting column is movably connected in the constraint groove, the connecting column is arranged on the movable disc, the linkage frame is movably connected with the extrusion mechanism, the fulcrum frame is arranged on the support table, and the fulcrum frame is hinged to the middle part of the linkage frame.

[0024] The hinge design of the linkage frame and the movable disc accurately controls the movement of the locking ring through the extrusion mechanism, realizes the quick locking and releasing of the lifting rope, simplifies the operation, and reduces the energy consumption.

[0025] As a preferred technical solution of the electric loading system of the truck-mounted crane, the locking assembly further comprises clamping columns, the clamping ring is provided with an annular array of clamping columns, and the clamping columns are movably connected with the hoisting rope.

[0026] The annular array design of the clamping columns increases the contact area between the clamping ring and the hoisting rope, improves the locking force, reduces the risk of hoisting rope sliding, enhances the hoisting safety, and is superior to the traditional hydraulic clamping device.

[0027] As a preferred technical solution of the electric loading system of the truck-mounted crane, the extrusion mechanism comprises a servo motor, a movable flat plate, a threaded rod, an extrusion table and a limiting column, the supporting table is provided with the servo motor and the limiting column, the power output end of the servo motor is connected with the threaded rod, the threaded rod is threadedly connected with the extrusion table, the bottom of the extrusion table is provided with the movable flat plate, the movable flat plate is inserted with the limiting column, the movable flat plate is movably connected with the limiting column, the connecting frame is J-shaped, and the connecting frame is movably connected with the outer side of the extrusion table.

[0028] The servo motor drives the threaded rod and the extrusion table to realize the precise movement of the connecting frame, cooperates with the elastic constraint arc plate to clamp the hoisting rope, provides an efficient electric locking mechanism, replaces the hydraulic system, and reduces energy consumption and maintenance cost.

[0029] The electric loading system of the truck-mounted crane has the advantages of reducing use and maintenance cost: a single electric drive system, such as a winding motor and a servo motor, is adopted to replace the traditional double-system design of hydraulic plus motor, the number of high-power devices is reduced, the structure is simplified, the energy consumption and maintenance difficulty are reduced, and the leakage, pollution and temperature sensitivity problems of the hydraulic system are avoided.

[0030] The operation flexibility and efficiency are improved: through the locking mechanism of the locking assembly and the hoisting rope, seamless switching between two hoisting modes, direct lifting mode of the hook and lifting mode of the lifting arm, is realized, which is convenient for flexible adjustment according to different scenes such as cargo height or position, and improves the hoisting efficiency.

[0031] The stability and safety are enhanced: the cooperation of the gas spring and the movable block in the slow-release mechanism with the limiting groove limits the lifting arm from swinging downward; the clamping ring and the locking ring of the locking assembly realize reliable locking of the hoisting rope through the locking ribs, prevent accidental sliding, and ensure the stability during hoisting.

[0032] Structural optimization and adaptability: the rotary design of the chassis structure and the mounting plate of the support plate facilitate vehicle fixation; the overall electrification design improves the response speed and accuracy of the system, and is suitable for various truck-mounted crane scenes. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor. Among them:

[0034] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0035] Figure 2 It is a schematic diagram of the cross-sectional structure of the front of the present application;

[0036] Figure 3 It is a schematic diagram of the cross-sectional structure of the side of the present application;

[0037] Figure 4 It is a schematic diagram of the cross-sectional structure of the side of the present application; Figure 1

[0038] Figure 5 It is a schematic diagram of the cross-sectional structure of the side of the present application; Figure 2

[0039] Figure 6 It is a schematic diagram of the position relationship structure of the center roller and the elastic constraint arc plate of the present application.

[0040] The drawings are as follows: 100, hanger structure; 101, hanger arm; 102, guide roller one; 103, guide roller two; 104, limiting groove; 105, limiting groove; 106, connecting table; 107, hanger rope; 108, hanger 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 structure; 301, support plate; 302, cylindrical seat; 303, circular table; 304, base; 305, bearing frame; 306, winding motor; 307, winding drum; 308, rotary motor; 400, locking assembly; 401, support table; 402, limiting column; 403, extrusion table; 404, threaded rod; 405, servo motor; 406, linkage frame; 407, fulcrum frame; 408, clamping ring; 409, locking ring; 410, center roller; 411, movable disc; 412, movable flat plate; 413, locking rib; 414, recovery pit; 415, steering wheel; 416, magnet one; 417, magnet two; 418, constraint groove; 419, clamping column; 420, elastic constraint arc plate. DETAILED DESCRIPTION

[0041] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings.​​

[0042] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be appreciated that the present application can be practiced in a variety of ways beyond the specific details set forth herein, having regard to the content of the finished product, and that the present application resides only in the claims hereinafter drawn.

[0043] Secondly, the "one embodiment" or "embodiment" referred to herein means a specific feature, structure, or characteristic under at least one implementation of the present application. "In one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an embodiment that is separate or alternative to other embodiments.

[0044] Thirdly, the present application is described in detail in conjunction with the schematic diagram, and in the detailed description of the embodiments of the present application, the cross-sectional view of the device structure is partially enlarged without regard to the general proportion for the convenience of illustration, and the schematic diagram is only an example, which should not limit the scope of protection of the present application herein. In addition, the three-dimensional spatial dimensions of length, width and depth should be included in actual production.

[0045] As shown in Figures 1-6 The present application proposes an electric loading system of a truck-mounted crane, which comprises,

[0046] The hanger structure 100 comprises a hanger arm 101, a guide roller one 102, a guide roller two 103, a connecting table 106, a lifting rope 107, and a lifting hook 108. The two ends of the upper side of the hanger arm 101 are respectively rotatably connected with a guide roller one 102 through a support one. The lower side of one end of the hanger arm 101 is provided with a connecting table 106. The other end of the hanger arm 101 is rotatably connected with a guide roller two 103 through a support two. The lifting rope 107 is wound around the outside of the guide roller one 102 and the guide roller two 103. One end of the lifting rope 107 is provided with a lifting hook 108.

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

[0048] The hanger arm 101 is provided with a slow-release mechanism 200. The top end of the hanger arm 101 is provided with a locking assembly 400.

[0049] By integrating the electrically driven winding motor 306 with the sling rope 107 winding system, combined with the locking assembly 400, the coordinated control of the lifting arm 101 lifting and the lifting hook 108 lifting is realized, replacing the traditional hydraulic plus motor double system, simplifying the structure, reducing the energy consumption and maintenance cost.

[0050] The slow-release mechanism 200 comprises a movable frame 201, movable blocks 202, limiting short shafts 203, limiting rings 204 and gas springs 205, the lifting frame structure 100 further comprises limiting grooves 104 and limiting grooves 105, the front and back of the lifting arm 101 are respectively provided with a limiting groove 104, a limiting groove 105 is provided on the vertical surface of the limiting groove 104, the movable frame 201 is movably connected with the lifting arm 101, two movable blocks 202 are respectively arranged on the inner side of the movable frame 201, the movable blocks 202 correspond to the limiting grooves 104, the movable blocks 202 are slidably connected with the corresponding limiting grooves 104, a limiting short shaft 203 is arranged 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 movably connected with the movable end of a gas spring 205, and the fixed end of the gas spring 205 is rotatably connected with the base frame 304.

[0051] The gas spring 205 and the movable block 202 are slidably connected in the limiting groove 104, so that the lifting arm 101 is prevented from swinging, the lifting stability is improved, and the common leakage and pollution problems of the hydraulic system are avoided.

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

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

[0054] As a preferred technical scheme of the electric on-board crane system, the base frame structure 300 further comprises a rotary motor 308, the inner side of the cylindrical seat 302 is provided with the rotary motor 308, and the power output end of the rotary motor 308 is connected with the circular table 303.

[0055] The rotary motor 308 drives the circular table 303 to rotate, so that the angle of the base frame structure 300 is adjusted, the flexibility of the lifting direction is enhanced, the complex rotary mechanism driven by the hydraulic pressure is replaced, and the manufacturing and maintenance costs are reduced.

[0056] Both ends of the supporting plate 301 are provided with mounting plates, and mounting fixing holes are arranged on the mounting plates.

[0057] The mounting plate and the fixing hole are designed to facilitate the quick fixing of the support plate 301 to the vehicle, simplify the installation process, improve the system adaptability, and reduce the complexity of the installation of the traditional hydraulic system.

[0058] The locking assembly 400 comprises a support table 401, a direction adjusting wheel 415, and a center roller 410. The inside of the support table 401 is rotatably provided with a sliding shaft, the middle of the sliding shaft is provided with the center roller 410, and the two ends of the sliding shaft are respectively sleeved with a clamping ring 408 and a locking ring 409. 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 are both annularly arrayed with a plurality of locking ribs 413. The locking ribs 413 are triangular prisms, and the locking ribs 413 on the clamping ring 408 and the locking ring 409 on the same side of the center roller 410 can be clamped to each other.

[0059] The support table 401 is also rotatably connected with two direction adjusting wheels 415, which are distributed in an inverted V shape with the center roller 410. The side of the lifting rope 107 passes through one direction adjusting wheel 415, then passes through the center roller 410, and finally passes through the other direction adjusting wheel 415. The lifting rope 107 passes through more than three-quarters of the circumferential surface of the clamping ring 408.

[0060] The locking assembly 400 realizes reliable clamping of the lifting rope 107 through the locking ribs 413 of the clamping ring 408 and the locking ring 409, simplifies the locking operation, replaces the hydraulic locking device, and improves the operation efficiency and safety.

[0061] The two sides of the center roller 410 are provided with a plurality of annularly arrayed magnet iiis 417, and the locking ring 409 is also annularly arrayed with a plurality of magnet iis 416. The magnet iiis 417 and the magnet iis 416 repel each other.

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

[0063] The locking assembly 400 further comprises a recovery pit 414, a movable disc 411, a linkage frame 406, and a fulcrum frame 407. The inside of the support table 401 is provided with two recovery pits 414, one on each side. The locking ring 409 is movably inserted into the recovery pit 414. The support table 401 is movably connected with a movable disc 411 on each side. The movable disc 411 is provided with a connecting rod, which is fixedly connected with the locking ring 409 through the support table 401. The connecting rod is movably connected with the support table 401. The linkage frame 406 is provided with a restraint groove 418. The restraint groove 418 is movably connected with a connecting column, which is arranged on the movable disc 411. The linkage frame 406 is movably connected with the extrusion mechanism. The support table 401 is provided with a fulcrum frame 407, which is hingedly connected with the middle part of the linkage frame 406.

[0064] The hinge design of the linkage frame 406 and the movable disc 411 precisely controls the movement of the locking ring 409 through the extrusion mechanism, realizes the quick locking and releasing of the hoisting rope 107, simplifies the operation, and reduces the energy consumption.

[0065] The locking assembly 400 further comprises clamping columns 419, and the clamping ring 408 is provided with an annular array of a plurality of clamping columns 419, which are movably connected with the hoisting rope 107.

[0066] The annular array design of the clamping columns 419 increases the contact area between the clamping ring 408 and the hoisting rope 107, improves the locking force, reduces the risk of hoisting rope sliding, enhances the hoisting safety, and is superior to the traditional hydraulic clamping device.

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

[0068] The servo motor 405 drives the threaded rod 404 and the extrusion table 403 to realize the precise movement of the linkage frame 406, clamps the hoisting rope 107 in cooperation with the elastic constraint arc plate 420, provides an efficient electric locking mechanism, replaces the hydraulic system, and reduces the energy consumption and maintenance cost.

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

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

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

[0072] The center roller 410 is provided with two groups of constraint mechanisms. Each group of constraint mechanisms is composed of a plurality of elastic constraint arc plates 420. The elastic constraint arc plates 420 are arranged in an annular array on the center roller 410. The material of the elastic constraint arc plates 420 is 3J60 elastic alloy.

[0073] The embodiment is specifically: the support plate 301 is fixed on the vehicle, welded or bolted through the mounting hole, the winding motor 306 is started to drive the winding drum 307 to rotate, the lifting rope 107 is wound, the lifting hook 108 is lifted, and the object hooked by the lifting hook 108 is also lifted;

[0074] The servo motor 405 starts to control the threaded rod 404 to rotate, the threaded rod 404 controls the extrusion table 403 to rise, the extrusion table 403 extrudes the two linkage frames 406 to separate, the linkage frames 406 swing, the linkage frames 406 extrude the movable discs 411 to approach each other, the movable discs 411 extrude the locking rings 409 to overcome the repulsive force between the magnet one 416 and the magnet two 417, so that the locking rings 409 abut and extrude the clamping rings 408, the locking ridges 413 on the clamping rings 408 and the locking rings 409 on the same side of the central roller 410 are clamped to each other, the clamping rings 408 cannot rotate, the clamping columns 419 on different locking rings 409 approach each other, the clamping columns 419 can directly clamp the lifting rope 107, or clamp the lifting rope 107 through extruding the elastic constraint arc plates 420, so that the lifting rope 107 is locked relative to the locking assembly 400 and even the lifting arm 101, when the winding drum 307 continues to wind the lifting rope 107, the lifting arm 101 is swung upward around the connecting point of the connecting table 106 and the base frame 304, through the cooperation of the base frame structure 300 and the locking assembly 400, the switching between two modes can be realized, one mode: the locking assembly 400 is not locked with the lifting rope 107, the winding drum 307 winds the lifting rope 107, so that the lifting rope 107 continuously shuttles on the guide roller two 103 and the guide roller one 102, directly making the lifting hook 108 go up;

[0075] The other mode is: the locking assembly 400 is locked with the lifting rope 107, the winding drum 307 pulls the lifting rope 107 to make the lifting arm 101 lift, so as to further lift the lifting hook 108 and the goods on the lifting hook 108.

[0076] It should be understood that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions can be made. Such development efforts might be complex and time-consuming, but would nevertheless be a routine undertaking for those of ordinary skill in the art having the benefit of this disclosure, without undue experimentation.

[0077] It should be noted that the above examples are only used to illustrate the technical solutions of the present application and not to limit it, although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, which should be covered in the scope of the claims of the present application.

Claims

1. A truck-mounted crane electric superstructure system, characterized in that: 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 the frustum (303). 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), which is rotatably connected to the winding drum (307). 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). 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).

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) and 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), which 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).

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: The locking assembly (400) includes a support platform (401), a steering wheel (415), and a center roller (410). The support platform (401) is rotatably equipped with a sliding shaft. 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 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 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).

7. The electric superstructure system for a truck-mounted crane according to claim 6, 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.

8. The electric superstructure system for a truck-mounted crane according to claim 6, 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).

9. 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 ring array, and the clamping posts (419) are movably connected to the suspension rope (107).

10. The electric superstructure system for a truck-mounted crane according to claim 6, characterized in that: 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).

Images