Multifunctional electric hoisting transfer trolley and application method

Abstract

The invention discloses a multifunctional electric hoisting transfer trolley and an application method. The multifunctional electric hoisting transfer trolley comprises a transport trolley body, a cantilever crane and a clamping device. The transportation vehicle body comprises a vehicle frame, a driving walking structure and a shell, the driving walking structure is installed on the vehicle frame and drives the transportation vehicle body to walk, and the shell is fixedly installed on the vehicle frame and provides a supporting platform for the cantilever crane and the clamping device; the cantilever crane comprises a suspension arm assembly, a driving rotation structure and a suspension assembly, the driving rotation structure is fixedly installed on the shell and used for driving the suspension arm assembly to achieve bidirectional rotation, and the suspension assembly is installed on the suspension arm; the clamping device comprises a clamping base and a plurality of telescopic clamping arms installed on the clamping base, and the clamping device is installed on the shell. The device has the advantages that the production efficiency of ship corollary equipment can be improved, the device can be suitable for loading and transferring of various complex curved surface parts, and meanwhile the device has the hoisting and remote control functions.

Description

Technical Field

[0001] The invention relates to the technical field of ship supporting equipment manufacturing, and in particular to a multifunctional electric lifting and transfer vehicle and an application method thereof. Background Art

[0002] my country's shipbuilding capacity ranks among the best in the world, and the shipbuilding industry and its supporting industries are developing particularly rapidly. As human beings continue to deepen their research on the ocean, ship equipment technology is constantly updated, the speed of ships is constantly increasing, and the size of ships is also increasing. The shape of ships and their supporting equipment has undergone tremendous changes. Since the curvature of the hull plates of various types is very different, the supporting equipment of ships also needs to be designed into corresponding curved shapes. The complex curved shapes make the use of conventional clamping tooling limited, so higher requirements are placed on the adaptability and safety of production equipment. The curved shapes of ship supporting equipment are becoming more and more complex, making the safe lifting and safe transportation of its parts a difficult problem that needs to be solved urgently in the production process of enterprises.

[0003] Ship supporting equipment manufacturing companies mainly use two methods to lift and transport various complex curved parts: one is to directly use forklifts to transport parts. The contact area between the forklift arm and the parts is small, and there are no fixed measures. This operation method is highly dangerous; the other is to make special transfer tooling and cooperate with cranes and forklifts for transportation. This method is relatively safe, but it requires more manpower and material resources, and the work efficiency needs to be improved. Safety production is the foundation of enterprise development, and the use of reliable production tooling is a key measure to ensure the safety of all links in production. Therefore, in order to ensure the safety and convenience of lifting and transporting curved parts between various links in the production process, it is particularly important to design a multifunctional lifting and transfer vehicle. Summary of the invention

[0004] In view of the deficiencies of the above-mentioned prior art, the technical problem to be solved by this patent application is how to provide a multifunctional electric lifting and transfer vehicle and application method that can improve the production efficiency of ship supporting equipment, can be suitable for the loading and transfer of various complex curved parts, and has lifting and remote control functions. The present invention adopts electric drive and hydraulic drive, which is energy-saving and environmentally friendly, with compact size, stable and reliable performance; it also has a remote control function, and only one person is needed to complete the lifting, transfer, unloading and other processes of curved parts, which greatly shortens the transfer time of curved parts, can achieve multiple uses of one machine, and effectively improves the safety of operations.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A multifunctional electric lifting and transfer vehicle and application method, comprising a transport vehicle body, a cantilever crane and a clamping device;

[0007] The transport vehicle body includes a frame, a driving walking structure and a shell. The driving walking structure is installed on the frame and drives the transport vehicle body to move. The shell is fixedly installed on the frame and provides a support platform for the cantilever crane and the clamping device; the cantilever crane includes a boom assembly, a driving rotating structure and a suspension assembly. The driving rotating structure is fixedly installed on the shell and is used to drive the boom assembly to achieve bidirectional rotation. The suspension assembly is installed on the boom; the clamping device includes a clamping base and a plurality of telescopic clamping arms installed on the clamping base, and the clamping device is installed on the shell.

[0008] Among them, the driving walking structure includes a battery compartment, a belt drive, a motor, a battery, a transmission shaft, a gear box and two driving wheels; the belt drive, the motor and the battery are installed in the battery compartment, the battery is connected to the motor, the motor transmits power to the transmission shaft and the gear box through the belt drive, and drives the two driving wheels to move through the gear box; a control box is installed on the frame, a controller is installed in the control box, and the motor is connected to the controller.

[0009] Among them, front wheel telescopic cylinders are hinged on both sides of the front end of the frame, and front wheel arms are hinged on the front end of the frame. The front wheel arms are rotatably mounted with the front wheels. The cylinder rods of the front wheel telescopic cylinders are hinged to the front wheel arms. Two hydraulic support legs are fixedly mounted on the front end of the frame, and the action ends of the hydraulic support legs are downwardly arranged and fixed with a bottom plate. A hydraulic oil tank is fixedly mounted on the frame, and the hydraulic oil tank is connected to the front wheel telescopic cylinder and the hydraulic support legs through pipelines. A hydraulic pump and a control valve are installed on the pipelines, and the hydraulic pump and the control valve are connected to a controller.

[0010] Wherein, a trailer frame is fixedly mounted on one end of the frame away from the driving wheel.

[0011] Wherein, a plurality of hooks are respectively fixed on both sides of the shell.

[0012] The boom assembly includes a crane vertical frame, a crane crossbeam fixedly connected to the upper end of the crane vertical frame, a crane telescopic arm slidably matched with the crane crossbeam, and a sliding assembly for driving the crane telescopic arm to slide; the crane crossbeam and the crane telescopic arm are both hollow square tube structures; the sliding assembly includes a crane telescopic oil cylinder fixedly mounted on the crane crossbeam, the cylinder rod end of the crane telescopic oil cylinder is fixedly connected to the crane telescopic arm, and the crane telescopic arm is fixed with a boom head;

[0013] The suspension assembly includes a winch fixedly mounted on the crane vertical frame, a steel rope connected to the winch, a main pulley mounted on the crane crossbeam, a secondary pulley mounted on the boom head, and a crane secondary hook mounted on the boom head, the steel rope passing through the main pulley and the secondary pulley and connected to the hook pulley and then fixedly connected to the crane secondary hook, and the hook pulley is fixedly mounted with a hook;

[0014] The rotary drive structure includes a rotary gearbox and a rotary hydraulic motor, wherein the rotary gearbox is fixedly mounted on a housing, the rotary hydraulic motor is fixedly mounted on the rotary gearbox, and an output shaft of the rotary hydraulic motor is fixedly connected to an output shaft of the rotary gearbox; a base is fixedly mounted on the lower end of the crane vertical frame, the base is rotatably connected to the rotary gearbox via a bearing, and the base is fixedly connected to the output shaft of the rotary gearbox.

[0015] Wherein, the telescopic clamping arm comprises a clamping auxiliary arm, a bushing, a clamping main arm, a threaded seat, a locking bolt, a clamping cylinder, a cylinder seat, a fixing pin, a cylinder bracket and a ball head seat;

[0016] The clamping main arm is welded and connected to the threaded seat, the threaded seat is provided with a threaded hole, the locking bolt is connected to the threaded hole, the clamping main arm is provided with a bushing and a clamping auxiliary arm, the clamping main arm is provided with an auxiliary arm slide groove that slides with the clamping auxiliary arm, a cylinder seat is welded on the bushing, a clamping cylinder is fixedly installed on the cylinder seat, a cylinder bracket is fixed on the clamping auxiliary arm, the cylinder rod of the clamping cylinder is rotatably connected to the cylinder bracket through a fixing pin, and a ball head seat is installed at the end of the clamping auxiliary arm.

[0017] Wherein, guide grooves are fixed on both sides of the clamping base, and clearance holes for allowing locking bolts to pass through are provided opposite to the clamping base and the shell.

[0018] Wherein, a tire clearance hole is opened on the shell, and warning words are arranged on the shell.

[0019] The application method comprises the following steps:

[0020] S1: The transport vehicle is connected to a remote controller or operated through a control box of the transport vehicle to realize forward, backward and steering of the transport vehicle;

[0021] S2: The rotary hydraulic motor moves and cooperates with the crane telescopic cylinder to adjust the working space;

[0022] S3: The telescopic clamping arm can adjust the height to meet the clamping requirements of parts with different curved shapes and sizes;

[0023] S4: During clamping, start the winch to adjust the length of the steel rope, use the sling to fix the parts on the hook, the winch reels the steel rope to lift the parts, place the parts on the telescopic clamping arm, and use the ball head seat to support the parts.

[0024] In summary, the multifunctional electric lifting and transfer vehicle and application method have the following beneficial effects:

[0025] 1. The frame structure is more compact and reasonable, and the rear-drive structure can improve the maneuverability of the transfer vehicle, improve the climbing ability of the transfer vehicle, and enhance the terrain adaptability of the transfer vehicle.

[0026] 2. With remote control function, it can realize independent remote control of each execution component, improve the intelligence and operation efficiency of the transfer vehicle, and effectively improve the safety of curved parts transfer operations.

[0027] 3. The present invention adopts electric drive and hydraulic drive to achieve energy saving and emission reduction, greatly reducing the use cost of the transfer vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the multifunctional electric lifting and transfer vehicle of the present invention and the application method.

[0029] Figure 2 It is a structural schematic diagram of the transport vehicle body of the present invention.

[0030] Figure 3 It is a structural schematic diagram of the cantilever crane of the present invention.

[0031] Figure 4 It is a structural schematic diagram of the clamping device of the present invention.

[0032] Figure 5 It is a structural schematic diagram of the telescopic clamping arm of the present invention.

[0033] Figure 6 It is a structural schematic diagram of the housing of the present invention.

[0034] Figure 7 It is a control principle diagram of the telescopic clamping arm of the present invention. DETAILED DESCRIPTION

[0035] The present invention is further described in detail below in conjunction with the accompanying drawings. In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "upper, lower" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the devices or components referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0036] like Figure 1-7 As shown, a multifunctional electric lifting and transfer vehicle and an application method include a transport vehicle body 1, a cantilever crane 2 and a clamping device 3; the energy source of the whole machine is an on-board battery, and the actuators are all hydraulically driven. The whole machine is optimized in strength and lightness so that it can meet the lifting and transfer operations of medium and large curved parts, and each component has a good service life.

[0037] The transport vehicle body 1 is a large assembly, including a frame 104, a driving walking structure 107 and a shell 109. The driving walking structure is installed on the frame 104 and drives the transport vehicle body 1 to move. The shell 109 is fixedly installed on the frame 104 and provides a support platform for the cantilever crane 2 and the clamping device 3, providing a reliable support platform for the lifting and transportation of curved parts; the transport vehicle body 1 has a remote control function, and its upper surface is paved with a whole steel plate, which can maximize the use of the upper surface of the vehicle body for load-bearing and transportation operations; the cantilever crane 2 includes a boom assembly, a driving rotating Structure and suspension components, the driving rotation structure is fixedly mounted on the shell and is used to drive the boom component to achieve bidirectional rotation, the suspension component is mounted on the boom and has three-way movement capabilities, can achieve multi-directional and multi-angle lifting operations, expand the application scenarios of the cantilever crane, and improve the operational adaptability of the transfer vehicle; the clamping device includes a clamping base 301 and a plurality of telescopic clamping arms 302 mounted on the clamping base 301, the clamping device is mounted on the shell, and the telescopic support arm has a two-way adjustment function, which can adapt to the clamping operations of parts with different curved shapes and different sizes.

[0038] The present invention optimizes the design of the lifting transfer vehicle so that it has multiple functions such as lifting, clamping, and remote control. It not only improves the use scenarios and operating efficiency of the transfer vehicle, but also improves the safety of each production link and reduces production costs, thus having a high promotion significance.

[0039] Specifically, the driving travel structure 107 includes a battery compartment 1071, a belt drive 1072, a motor 1073, a battery 1074, a transmission shaft 1075, a gear box 1076 and two driving wheels; the frame 104 is a large welded part, which is the main load-bearing component of the vehicle body. A mounting hole for the driving travel structure 107 is reserved in the middle of the frame 104, a mounting position for the hydraulic oil tank 105 is reserved at the front end of the frame 104, and a mounting position for the axle and control box 108 is reserved at the rear end of the frame 104. The belt drive 1072, motor 1073, and battery 1074 are installed in the battery compartment 1071, and the battery compartment 1071 serves as a supporting base. The battery 1074 is connected to the motor 1073, and the motor 1073 transmits power to the transmission shaft 1075 and the gear box 1076 through the belt drive 1072, and drives the two driving wheels through the gear box 1076; a control box 108 is installed on the frame 104, and a controller is installed in the control box 108, and the motor 1073 is connected to the controller.

[0040] Specifically, the front ends of the frame 104 are respectively hinged with front wheel telescopic cylinders 101, the front ends of the frame 104 are hinged with front wheel arms, the front wheel arms are rotatably mounted with front wheels 102, the cylinder rods of the front wheel telescopic cylinders 104 are hinged with the front wheel arms, the front ends of the frame 104 are fixedly mounted with two hydraulic support legs 103, the action ends of the hydraulic support legs 103 are downwardly arranged and fixed with a bottom plate; the frame 104 is fixedly mounted with a hydraulic oil tank 105, the hydraulic oil tank 105 is connected to the front wheel telescopic cylinder and the hydraulic support legs through pipelines, a hydraulic pump 106 and a control valve are installed on the pipelines, and the hydraulic pump and the control valve are connected to the controller. This can make the body stability of the hoisting and transporting vehicle better when performing large-scale hoisting operations. The working states of the two can be controlled by a remote controller, and different matching methods can be selected according to the actual use conditions, so that the body stability of the hoisting and transporting vehicle is better when performing large-scale hoisting operations.

[0041] The transport vehicle body is a rear-drive structure, with the drive device arranged in the middle of the chassis, the hydraulic oil tank arranged at the front of the vehicle, and the control device arranged at the rear of the vehicle. The drive device is electrically driven and includes components such as the motor, transmission system, battery, and battery compartment, and is the energy source for the multifunctional lifting and transport vehicle. The hydraulic drive components include the crane rotation motor, telescopic arm cylinder, support frame cylinder, front wheel retractable cylinder, outrigger cylinder, etc., which can provide stable and reliable driving force for each actuator.

[0042] Specifically, a trailer frame is fixedly mounted on one end of the vehicle frame 104 away from the driving wheel, so that the present invention has a traction function and can meet the cross-regional operation requirements of the transfer vehicle.

[0043] Specifically, a plurality of hooks 1095 are fixed on both sides of the housing 109 to fix curved parts and ensure that the parts will not loosen during transportation.

[0044] Specifically, the boom assembly 2 includes a crane vertical frame 203, a crane crossbeam 206 fixedly connected to the upper end of the crane vertical frame 203, a crane telescopic arm 208 slidably matched with the crane crossbeam 206, and a sliding assembly for driving the crane telescopic arm 208 to slide; the crane crossbeam 206 and the crane telescopic arm 208 are both hollow square tube structures; the sliding assembly includes a crane telescopic oil cylinder 211 fixedly installed on the crane crossbeam 206, the cylinder rod end of the crane telescopic oil cylinder 211 is fixedly connected to the crane telescopic arm 208, one end of the crane telescopic arm 208 is welded with a wear-resistant slider, and the other end is welded with a boom head, and the boom head is provided with a mounting hole for a secondary pulley 209. The crane telescopic oil cylinder 211 is a driving component for realizing the retraction and extension of the crane telescopic arm 208, which can expand the operating range of the crane; the winch 204 has an anti-fall locking function and a manual retraction and extension function, and can provide a variety of operating modes.

[0045] The crane vertical frame 203 shown is welded by a mounting base and square steel. The bottom of the mounting base is provided with gear and bearing mounting positions. The gears form a transmission relationship with the rotating gear box 201 to realize the bidirectional rotation function of the crane.

[0046] The suspension assembly includes a winch 204 fixedly mounted on the crane vertical frame, a steel rope 205 connected to the winch 204, a main pulley 207 mounted on the crane crossbeam 206, an auxiliary pulley 209 mounted on the boom head, and a crane auxiliary hook 210 mounted on the boom head. The steel rope passes through the main pulley and the auxiliary pulley and is connected to the hook pulley 212 and then fixedly connected to the crane auxiliary hook. The hook pulley is fixedly mounted with a hook 213.

[0047] The rotary drive structure includes a rotary gearbox 201 and a rotary hydraulic motor 202, wherein the rotary gearbox is fixedly mounted on the housing, the rotary hydraulic motor is fixedly mounted on the rotary gearbox, and the output shaft of the rotary hydraulic motor is fixedly connected to the output shaft of the rotary gearbox; a base is fixedly mounted on the lower end of the crane vertical frame, the base is rotatably connected to the rotary gearbox via a bearing, and the base is fixedly connected to the output shaft of the rotary gearbox.

[0048] Specifically, the telescopic clamping arm 302 includes a clamping auxiliary arm 30201, a bushing 30202, a clamping main arm 30203, a threaded seat 30204, a locking bolt 30205, a clamping cylinder 30206, a cylinder seat 30207, a fixing pin 30208, a cylinder bracket 30209 and a ball head seat 30210; the ball head seat 30210 has an adaptive function, which can increase the contact area between the curved parts and the transfer vehicle, thereby ensuring safe and reliable transfer operations.

[0049] The clamping main arm 30203 is welded to the threaded seat 30204, the threaded seat 30204 is provided with an M60x3 threaded hole, the locking bolt 30205 is connected to the threaded hole, the clamping main arm 30203 is provided with a bushing 30202 and a clamping auxiliary arm 30201, the clamping main arm 30203 is provided with an auxiliary arm slideway that slides with the clamping auxiliary arm, the bushing 30202 is welded with a cylinder seat 30207, the cylinder seat 30207 is fixedly installed with a clamping oil cylinder 30206, and the clamping auxiliary arm 30201 is driven to slide in the clamping main arm 30203 by the clamping oil cylinder 30206 to achieve the adjustment of different working strokes. The clamping auxiliary arm 30201 is fixed with an oil cylinder bracket, the cylinder rod of the clamping oil cylinder is rotatably connected with the oil cylinder bracket through a fixing pin, and a ball head seat is installed at the end of the clamping auxiliary arm. Adaptive support for different surfaces can be achieved.

[0050] Specifically, guide grooves are fixed on both sides of the clamping base, and the clamping base and the housing are provided with clearance holes 1094 for allowing the locking bolts to pass through. Locking bolt adjustment holes 1091 are also provided on both sides of the housing.

[0051] Specifically, a tire clearance hole 1093 is provided on the shell 109, and a warning word 1092 is provided on the shell 109. The shell 109 is welded by a top plate and a surrounding plate, wherein the top plate is a high-strength steel plate, which can provide stable support for the cantilever crane 2 and the clamping device 3, and the shell surrounding plate is made of thin steel plate sheet metal, and each hole is cut out when cutting, and then formed by sheet metal.

[0052] Specifically, the transport vehicle body 1 can be controlled by a handheld remote controller or a vehicle-mounted control box to control the forward movement, backward movement and steering of the vehicle body, respectively, and the operation is simple and convenient.

[0053] Specifically, when the present invention performs a hoisting operation, the rotary hydraulic motor 202 and the crane telescopic cylinder 211 can be used in conjunction with each other to cover a larger diameter working space.

[0054] Specifically, during the clamping operation, the four telescopic clamping arms 302 can coordinately adjust the height, and can also independently adjust the extension length of the clamping auxiliary arms 30201.

[0055] Specifically, the transmission system includes components such as a belt drive 1072, a transmission shaft 1075 and a gear box 1076, and transmits the power output by the motor 1073 to the driving wheel through the belt drive and the gear drive in sequence.

[0056] Specifically, the telescopic legs 103 can be independently retracted. After the telescopic legs 103 are in contact with the bottom surface, the front wheel telescopic cylinder 101 can lift the front wheel backwards, thereby improving the stability of the entire vehicle during large-scale lifting operations of the transfer vehicle and increasing the service life of the transfer vehicle's drive system.

[0057] Specifically, the clamping device 3 can be separated from the transport vehicle body 1, so that the present invention can be converted into a flatbed crane, which can transport large flatbed parts and realize multiple uses of one machine.

[0058] Specifically, when performing the hoisting operation, the present invention starts the winch 204 to adjust the length of the steel cable 205, uses a sling or other hoisting device to fix the curved surface component on the hook 213, and then completes the hoisting action by operating the hoisting button. Before the curved surface component contacts the clamping device 3, it is necessary to pre-judge the size of the component and pre-adjust the height of the telescopic clamping arm 302 to prevent the component from tipping over.

[0059] Specifically, the application method includes the following steps:

[0060] S1: The transport vehicle is connected to a remote controller or operated through a control box of the transport vehicle to realize forward, backward and steering of the transport vehicle;

[0061] S2: The rotary hydraulic motor moves and cooperates with the crane telescopic cylinder to adjust the working space;

[0062] S3: The telescopic clamping arm can adjust the height to meet the clamping requirements of parts with different curved shapes and sizes;

[0063] S4: During clamping, start the winch to adjust the length of the steel rope, use the sling to fix the parts on the hook, the winch reels the steel rope to lift the parts, place the parts on the telescopic clamping arm, and use the ball head seat to support the parts.

[0064] Finally, it should be noted that those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A multifunctional electric lifting and transfer vehicle and application method, characterized in that: It includes a transport vehicle body, a cantilever crane and a clamping device; The transport vehicle body includes a frame, a driving walking structure and a shell. The driving walking structure is installed on the frame and drives the transport vehicle body to move. The shell is fixedly installed on the frame and provides a support platform for the cantilever crane and the clamping device; the cantilever crane includes a boom assembly, a driving rotating structure and a suspension assembly. The driving rotating structure is fixedly installed on the shell and is used to drive the boom assembly to achieve bidirectional rotation. The suspension assembly is installed on the boom; the clamping device includes a clamping base and a plurality of telescopic clamping arms installed on the clamping base, and the clamping device is installed on the shell.

2. A multifunctional electric lifting and transfer vehicle and application method according to claim 1, characterized in that: The driving walking structure includes a battery compartment, a belt drive, a motor, a battery, a transmission shaft, a gear box and two driving wheels; the belt drive, the motor and the battery are installed in the battery compartment, the battery is connected to the motor, the motor transmits power to the transmission shaft and the gear box through the belt drive, and the two driving wheels are driven by the gear box; a control box is installed on the frame, a controller is installed in the control box, and the motor is connected to the controller.

3. A multifunctional electric lifting and transfer vehicle and application method according to claim 1, characterized in that: Front wheel telescopic cylinders are hinged on both sides of the front end of the frame, and front wheel arms are hinged on the front end of the frame. The front wheel arms are rotatably mounted with the front wheels. The cylinder rods of the front wheel telescopic cylinders are hinged to the front wheel arms. Two hydraulic support legs are fixedly mounted on the front end of the frame, and the action ends of the hydraulic support legs are downwardly arranged and fixed with a bottom plate. A hydraulic oil tank is fixedly mounted on the frame, and the hydraulic oil tank is connected to the front wheel telescopic cylinder and the hydraulic support legs through pipelines. A hydraulic pump and a control valve are installed on the pipelines, and the hydraulic pump and the control valve are connected to a controller.

4. A multifunctional electric lifting and transfer vehicle and application method according to claim 1, characterized in that: A trailer frame is fixedly mounted on one end of the frame away from the driving wheel.

5. The multifunctional electric lifting and transfer vehicle and application method according to claim 1, characterized in that: A plurality of hooks are respectively fixed on both sides of the shell.

6. The multifunctional electric lifting and transfer vehicle and application method according to claim 1, characterized in that: The boom assembly includes a crane vertical frame, a crane crossbeam fixedly connected to the upper end of the crane vertical frame, a crane telescopic arm slidably matched with the crane crossbeam, and a sliding assembly for driving the crane telescopic arm to slide; the crane crossbeam and the crane telescopic arm are both hollow square tube structures; the sliding assembly includes a crane telescopic oil cylinder fixedly mounted on the crane crossbeam, the cylinder rod end of the crane telescopic oil cylinder is fixedly connected to the crane telescopic arm, and the crane telescopic arm is fixed with a boom head; The suspension assembly includes a winch fixedly mounted on the crane vertical frame, a steel rope connected to the winch, a main pulley mounted on the crane crossbeam, a secondary pulley mounted on the boom head, and a crane secondary hook mounted on the boom head, the steel rope passing through the main pulley and the secondary pulley and connected to the hook pulley and then fixedly connected to the crane secondary hook, and the hook pulley is fixedly mounted with a hook; The rotary drive structure includes a rotary gearbox and a rotary hydraulic motor, wherein the rotary gearbox is fixedly mounted on a housing, the rotary hydraulic motor is fixedly mounted on the rotary gearbox, and an output shaft of the rotary hydraulic motor is fixedly connected to an output shaft of the rotary gearbox; a base is fixedly mounted on the lower end of the crane vertical frame, the base is rotatably connected to the rotary gearbox via a bearing, and the base is fixedly connected to the output shaft of the rotary gearbox.

7. A multifunctional electric lifting and transfer vehicle and application method according to claim 2, characterized in that: The telescopic clamping arm comprises a clamping auxiliary arm, a bushing, a clamping main arm, a threaded seat, a locking bolt, a clamping cylinder, a cylinder seat, a fixing pin, a cylinder bracket and a ball head seat; The clamping main arm is welded and connected to the threaded seat, the threaded seat is provided with a threaded hole, the locking bolt is connected to the threaded hole, the clamping main arm is provided with a bushing and a clamping auxiliary arm, the clamping main arm is provided with an auxiliary arm slide groove that slides with the clamping auxiliary arm, a cylinder seat is welded on the bushing, a clamping cylinder is fixedly installed on the cylinder seat, a cylinder bracket is fixed on the clamping auxiliary arm, the cylinder rod of the clamping cylinder is rotatably connected to the cylinder bracket through a fixing pin, and a ball head seat is installed at the end of the clamping auxiliary arm.

8. The multifunctional electric lifting and transfer vehicle and application method according to claim 1, characterized in that: Guide grooves are fixed on both sides of the clamping base, and clearance holes for allowing locking bolts to pass through are provided opposite to the clamping base and the shell.

9. The multifunctional electric lifting and transfer vehicle and application method according to claim 1, characterized in that: The shell body is provided with a tire clearance hole, and the shell body is provided with warning words.

10. A multifunctional electric lifting and transfer vehicle and application method according to claim 1, characterized in that: The application method comprises the following steps: S1: The transport vehicle is connected to a remote controller or operated through a control box of the transport vehicle to realize forward, backward and steering of the transport vehicle; S2: The rotary hydraulic motor moves and cooperates with the crane telescopic cylinder to adjust the working space; S3: The telescopic clamping arm can adjust the height to meet the clamping requirements of parts with different curved shapes and sizes; S4: During clamping, start the winch to adjust the length of the steel rope, use the sling to fix the parts on the hook, the winch reels the steel rope to lift the parts, place the parts on the telescopic clamping arm, and use the ball head seat to support the parts.

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