Electric multifunctional working vehicle with folding arm crane

Abstract

The invention discloses an electric multifunctional operation vehicle with a folding arm crane. The folding arm crane is fixedly arranged on a chassis girder between a vehicle head and a multifunctional operation compartment; the folding arm crane comprises a bearing base, a slewing bearing, a large arm, a middle arm, a telescopic arm, a large arm oil cylinder, a rotation detection assembly and a control assembly, the bearing base is fixedly arranged on the chassis girder, the large arm is rotationally connected with the top of the bearing base through the slewing bearing, the large arm, the middle arm and the telescopic arm are sequentially connected, and the two ends of the large arm oil cylinder are connected with the large arm and the middle arm respectively; the control assembly is electrically connected with the slewing bearing and the big arm oil cylinder, and drives the folding arm crane to rotate in the horizontal direction and the vertical direction through the slewing bearing and the big arm oil cylinder; the control assembly is further electrically connected with the rotation detection assembly, the telescopic length of the large arm oil cylinder is obtained through the rotation detection assembly, and when the telescopic length is within the safe telescopic range, the slewing bearing is controlled to rotate normally to drive the folding arm crane to act so as to avoid the vehicle head and the multifunctional operation compartment.

Description

Technical Field

[0001] The invention relates to the technical field of special vehicles, in particular to an electric multifunctional working vehicle with a folding arm crane. Background Art

[0002] In recent years, with the substantial increase in the number of electricity users in my country, the speed of power grid construction has been accelerating, and there are more and more power engineering projects. Power grid construction has entered an accelerated period, and the current manpower-based construction method can no longer meet the new construction needs. Promoting full-process mechanized construction can change the current situation of line engineering construction being "manpower-based and machinery-assisted", and realize the transformation of the construction process to a mechanized and automated method. In the power system, the distribution network is an important part of the system, and the quality of its construction is directly related to the safety and stability of the power system operation.

[0003] For a long time, the construction of distribution network projects has required a large amount of manpower, insufficient research and development and investment in construction machinery, and a lack of efficient and specialized construction machinery. With the rapid development of my country's social economy, the fields of information, technology, artificial intelligence, etc. are changing with each passing day, social productivity has greatly improved, and social production capacity has significantly increased. In order to meet the needs of increasing power load and power supply reliability, power grid construction faces new opportunities and challenges.

[0004] Although there is a technical foundation to support it, the demand for electric power construction vehicles is still relatively large. For a long time, the labor input in the construction of distribution network projects has been large, the research and development and investment in construction machinery have been insufficient, and there is a lack of high-efficiency and specialized construction machinery. Often, multiple construction vehicles cooperate with each other to complete a single power operation. On the one hand, there are the current situations of high labor intensity, low efficiency, long construction cycle and high operation risk for operators. On the other hand, with the rapid development of the economy and society, the human resource cost of power grid construction has increased significantly. Therefore, with the increasing shortage of labor resources and the increasingly severe safety situation, traditional labor-intensive construction methods are unsustainable, and it is urgent to develop multifunctional and systematic mechanized electric power construction vehicles. Summary of the invention

[0005] The purpose of the embodiment of the present invention is to provide an electric multifunctional working vehicle with a folding arm crane. By fixing the folding arm crane on the chassis beam between the vehicle head and the multifunctional working compartment, this design makes the overall structure of the vehicle more compact, fully utilizes the limited space, and improves the space utilization rate of the vehicle. At the same time, a rotation angle detection component is provided to monitor the rotation angle of the slewing bearing of the folding arm crane in real time. When the rotation angle is within the safe rotation range, the boom cylinder is controlled to drive the middle arm to move, thereby effectively avoiding the collision of the folding arm crane with the vehicle head and the multifunctional working compartment during operation.

[0006] In order to solve the above technical problems, an embodiment of the present invention provides an electric multifunctional working vehicle with a folding arm crane, comprising: a vehicle head, a chassis, a folding arm crane and a multifunctional working compartment;

[0007] The folding arm is fixedly mounted on the chassis beam between the vehicle head and the multifunctional working compartment;

[0008] The folding arm crane comprises: a load-bearing base, a slewing bearing, a boom, an intermediate arm, a telescopic arm, a boom oil cylinder, a rotation detection component and a control component. The load-bearing base is fixed on the chassis beam, the boom is rotatably connected to the top of the load-bearing base through the slewing bearing, the boom, the intermediate arm and the telescopic arm are connected in sequence, and the two ends of the boom oil cylinder are respectively connected to the boom and the intermediate arm;

[0009] The control assembly is electrically connected to the slewing bearing and the boom oil cylinder, and drives the folding arm crane to rotate in the horizontal direction and the vertical direction through the slewing bearing and the boom oil cylinder;

[0010] The control component is also electrically connected to the rotation detection component, and the telescopic length of the boom cylinder is obtained through the rotation detection component. When the telescopic length is within the safe telescopic range, the slewing bearing is controlled to rotate normally to drive the folding arm crane to move, so as to avoid the vehicle head and the multi-functional working compartment.

[0011] Further, the rotation detection assembly includes a travel switch, and the travel switch is arranged at the piston of the boom cylinder;

[0012] The rotation detection component receives the detection signal of the travel switch and sends it to the control component;

[0013] The control component determines that the telescopic length is within the safe telescopic range based on the received detection signal, and controls the slewing bearing to rotate normally to drive the folding arm crane to move.

[0014] Furthermore, the telescopic arm includes a plurality of telescopically connected single arms.

[0015] Furthermore, the folding arm crane further comprises: a support leg;

[0016] The supporting legs are telescopically connected to the load-bearing base;

[0017] When the legs are unfolded, they first move horizontally in a direction away from the load-bearing base, and then move downward to abut against the ground.

[0018] Furthermore, the electric multifunctional working vehicle with a folding arm crane further comprises: a left skirt, a left skirt operating door, a right skirt and a right skirt operating door;

[0019] The left side skirt and the right side skirt are respectively arranged at the lower parts of both sides of the multifunctional working compartment, the left side skirt operating door is arranged on a side wall of the left side skirt away from the chassis, and the right side skirt operating door is arranged on a side wall of the right side skirt away from the chassis.

[0020] Furthermore, the electric multifunctional working vehicle with a folding arm crane further comprises: a rolling door;

[0021] The multifunctional work compartment is a frame structure, and the rolling shutter doors are arranged on both sides of the multifunctional work compartment.

[0022] Furthermore, the electric multifunctional working vehicle with a folding arm crane further comprises: a lighting gantry lamp;

[0023] The lighting platform lamp is fixed on the top of the vehicle head.

[0024] Furthermore, the electric multifunctional working vehicle including the knuckle boom crane further comprises: a forklift mast;

[0025] The forklift door frame is fixedly arranged on the outer side of the side wall of the multifunctional working compartment away from the vehicle head.

[0026] Furthermore, the electric multifunctional working vehicle including the knuckle boom crane further comprises: a cable reel;

[0027] The cable reel is fixedly arranged in the middle of the multifunctional working compartment.

[0028] Furthermore, the electric multifunctional work vehicle with a knuckle boom crane also includes: an aluminum alloy shelf and a tool box;

[0029] The aluminum alloy shelf is fixedly mounted on one end of the multifunctional working compartment close to the vehicle head;

[0030] The tool box is fixedly arranged at one end of the multifunctional working compartment away from the vehicle head.

[0031] Furthermore, the electric multifunctional working vehicle including the knuckle boom crane further comprises: a generator assembly;

[0032] The generator assembly includes: a generator and a sliding support, the generator is fixed on the top of the sliding support, the sliding support is slidably connected to the bottom of the multifunctional working compartment through a slide, and the generator can move horizontally along the slide driven by an external force.

[0033] The above technical solution of the embodiment of the present invention has the following beneficial technical effects:

[0034] 1. The knuckle boom crane is fixed on the chassis beam between the front of the vehicle and the multi-functional working compartment, which makes full use of the existing structural space of the vehicle and makes the vehicle structure more compact. Without increasing the overall length and width of the vehicle, the knuckle boom crane is reasonably placed, which improves the space utilization rate and provides more available space for other equipment and operations;

[0035] 2. The rotation angle detection component is set up to accurately monitor the rotation angle of the slewing bearing of the knuckle boom crane. When the rotation angle is detected to be within the safe rotation range, the boom cylinder is controlled to drive the middle arm to move, effectively avoiding the risk of collision between the knuckle boom crane and the vehicle head and the multi-functional working compartment during operation, greatly improving the safety of the operation, reducing the possibility of equipment damage and casualties, and providing reliable safety protection for operators;

[0036] 3. Through precise detection and control of the rotation angle, repeated adjustment operations due to concerns about collision are reduced, making the operation of the folding arm crane smoother and more efficient. Operators can focus more on the task itself without being distracted by the risk of collision, thereby improving overall operating efficiency, shortening operating time, and providing strong support for the rapid development of power operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a left side view of the electric multifunctional working vehicle with a folding arm crane of the present invention with the door not opened;

[0038] Figure 2 It is a front view of the electric multifunctional working vehicle with a folding arm crane of the present invention;

[0039] Figure 3 It is a left side view of the electric multifunctional working vehicle with a folding arm crane of the present invention with the door opened;

[0040] Figure 4 It is a right side view of the electric multifunctional working vehicle with a folding arm crane of the present invention with the door opened;

[0041] Figure 5 The utility model is a front view of a folding arm crane of an electric multifunctional working vehicle including a folding arm crane of the present invention.

[0042] Figure 6 It is a right isometric view of a mast of an electric multifunctional working vehicle forklift with a knuckle boom crane according to the present invention;

[0043] Figure 7 It is a left view of the mast of the electric multifunctional working vehicle forklift with a knuckle boom crane of the present invention;

[0044] Figure 8 It is a front view of the mast of the electric multifunctional working vehicle forklift with a knuckle boom crane of the present invention;

[0045] Fig. 9It is a right isometric view of a cable reel of an electric multifunctional working vehicle with a folding arm crane according to the present invention;

[0046] Fig.10 It is a cross-sectional view of a cable reel of an electric multifunctional working vehicle including a folding arm crane according to the present invention;

[0047] Fig.11 It is a right isometric view of the aluminum alloy shelf of the electric multifunctional working vehicle with a folding arm crane of the present invention;

[0048] Fig.12 It is a positive isometric view of a tool box of an electric multifunctional working vehicle with a folding arm crane according to the present invention.

[0049] Reference numerals:

[0050] 1. Chassis, 2. Lighting PTZ lamp, 3. Multifunctional work box, 4. Tool box, 5. Forklift door, 6. Aluminum alloy shelf, 7. Cable reel, 8. Rolling door, 9. Left skirt, 10. Left skirt operating door, 11. Fender, 12. Right skirt, 13. Right skirt operating door, 14. Hydraulic oil tank, 15. Multi-way valve group and its protective cover, 16. Hydraulic winch, 17. Switching valve, 18. Grounding reel, 19. Generator, 20. Spare tire, 21. Knuckle boom crane, 401. Tool box body, 402. Tool box door, 403. Tool box door lock, 404. Tool box hinge, 501. Fork tine mobile frame, 502. Fork tine, 503. Fork tine locking device, 504. Lifting cylinder, 505. Chain, 506, door frame reinforcement plate, 507, cable guide device, 508, tilt cylinder, 509, tilt cylinder mounting frame, 510, mounting shaft, 511, fork tooth shaft, 601, aluminum alloy profile, 602, shelf bottom plate, 603, aluminum alloy angle fittings, 604, shelf side baffle, 701, reel outer plate, 702, reel reinforcement rib, 703, reel inner plate, 704, chain, 705, main shaft, 706, bearing seat, 707, reel mounting frame, 708, small sprocket, 709, large sprocket, 2101, outrigger, 2102, load-bearing base, 2103, slewing bearing, 2104, boom, 2105, intermediate arm, 2106, telescopic arm, 2107, boom cylinder. DETAILED DESCRIPTION

[0051] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0052] Please refer to Figure 1-Figure 5The embodiment of the present invention provides an electric multifunctional working vehicle including a folding arm crane 21, comprising: a vehicle head, a chassis 1, a folding arm crane 21 and a multifunctional working compartment 3; the folding arm crane 21 is fixedly mounted on the chassis 1 beam between the vehicle head and the multifunctional working compartment 3; the folding arm crane 21 comprises: a load-bearing base 2102, a slewing bearing 2103, a boom 2104, an intermediate arm 2105, a telescopic arm 2106, a boom oil cylinder 2107, a rotation detection component and a control component, the load-bearing base 2102 is fixedly mounted on the chassis 1 beam, the boom 2104 is rotatably connected to the top of the load-bearing base 2102 through the slewing bearing 2103, and the boom 2104 , the middle arm 2105 and the telescopic arm 2106 are connected in sequence, and the two ends of the boom cylinder 2107 are respectively connected to the boom 2104 and the middle arm 2105; the control component is electrically connected to the slewing bearing 2103 and the boom cylinder 2107, and drives the folding arm crane 21 to rotate in the horizontal and vertical directions through the slewing bearing 2103 and the boom cylinder 2107; the control component is also electrically connected to the rotation detection component, and obtains the telescopic length of the boom cylinder 2107 through the rotation detection component. When the telescopic length is within the safe telescopic range, the slewing bearing 2103 is controlled to rotate normally to drive the folding arm crane to move, so as to avoid the front of the vehicle and the multi-functional working compartment 3.

[0053] The above technical solution fixes the folding arm crane on the chassis beam between the front of the vehicle and the multifunctional working compartment. This design makes the overall structure of the vehicle more compact, fully utilizes the limited space, and improves the space utilization rate of the vehicle. At the same time, a rotation angle detection component is set to monitor the rotation angle of the slewing bearing of the folding arm crane in real time. When the rotation angle is within the safe rotation range, the boom cylinder is controlled to drive the middle arm to move, thereby effectively avoiding the collision of the folding arm crane with the front of the vehicle and the multifunctional working compartment during operation.

[0054] Furthermore, the rotation detection component includes a travel switch, which is arranged at the piston of the boom cylinder 2107; the rotation detection component receives the detection signal of the travel switch and sends it to the control component; the control component determines that the telescopic length of the boom cylinder 2107 is within the safe telescopic range based on the received detection signal, and controls the normal rotation of the slewing bearing 2103 to drive the folding arm crane to move.

[0055] In addition, the setting position of the travel switch on the boom cylinder 2107 is related to the position of the vehicle chassis and the front of the vehicle. When the boom cylinder 2107 is not extended or the extended angle is not enough (that is, the folding arm crane is at risk of colliding with the front of the vehicle and the multi-functional working compartment), the travel switch does not work and the slewing bearing 2103 of the folding arm crane cannot rotate.

[0056] The telescopic length of the boom cylinder 2107 directly determines the relative position and posture of the boom, middle arm and telescopic arm of the folding arm crane, which in turn affects the overall rotation angle of the folding arm crane. The travel switch is set at the piston, which can accurately detect the change in the telescopic length of the boom cylinder 2107. Through real-time monitoring of the telescopic length, the current rotation angle of the folding arm crane can be accurately inferred, providing key parameter information for the control component. This direct detection method avoids the errors that may be caused by estimating the angle through indirect calculation or other complex methods, and can more truly and accurately reflect the posture changes of the folding arm crane in actual operation, so that the control component can make reasonable control decisions based on precise angle information, effectively improving the safety and stability of the folding arm crane operation.

[0057] In various operating scenarios of electric multi-purpose work vehicles, the folding arm crane needs to cope with different work requirements and space limitations, and its rotation angle and the telescopic length of the boom cylinder 2107 will change frequently. The travel switch can closely follow the movement of the boom cylinder 2107. Whether the folding arm crane is performing delicate fine-tuning operations or large-scale extension and contraction movements, it can detect the position changes of the piston in a timely and accurate manner, thereby accurately calculating the corresponding folding arm crane rotation angle. For example, when operating in a narrow working space, the precise control of the angle is required to be higher. The travel switch can ensure that the angle change is still accurately detected in this case to avoid the folding arm crane from colliding with the front of the vehicle or the carriage, and adapt to the strict requirements for the safe angle detection of the folding arm crane under various complex working conditions.

[0058] In addition, after the travel switch detects a change in the piston position, the rotation detection component can quickly receive its detection signal and send the signal to the control component in a timely manner. This fast signal transmission mechanism ensures that the control component can obtain information about the telescopic length of the boom cylinder 2107 in the shortest time, thereby determining in real time whether the rotation angle of the folding arm crane is within a safe range. Compared with traditional detection methods, the travel switch has a faster response speed and can greatly reduce the delay in signal transmission, allowing the control component to make corresponding control actions in a timely manner. For example, when it is detected that the angle is close to the boundary of the safe range, the control component can immediately activate the early warning mechanism or adjust the rotation speed of the slewing bearing 2103 to avoid collision accidents caused by too fast angle changes in the folding arm crane.

[0059] Furthermore, the telescopic arm 2106 includes a plurality of telescopically connected single arms, which can realize a multi-stage telescopic function.

[0060] Furthermore, the folding arm crane 21 also includes: a leg 2101; the leg 2101 is telescopically connected to the load-bearing base 2102; when the leg 2101 is unfolded, it first moves horizontally in a direction away from the load-bearing base 2102, and then abuts against the ground downward. Specifically, the leg 2101 is connected to the weighing base through high-strength steel, and when in use, the leg 2101 can be horizontally extended to a certain span to provide reliable support for the lifting operation.

[0061] The installation position of the folding arm crane 21 is between the front of the vehicle and the multifunctional working compartment 3, and can realize a full rotation of 360°; the folding arm crane 21 has a one-key leveling function for the outriggers 2101, which can realize the one-key extension and resetting of the outriggers 2101; the folding arm crane 21 has a stroke self-locking function. When the folding arm crane 21 is not rotated to the side of the vehicle body, the boom cannot be extended. This function is a safety protection function, which can prevent the user from damaging the front of the vehicle and the multifunctional working compartment 3 due to misoperation; the folding arm crane 21 has a lifting overload torque limitation and a limit protection function. When the lifting range of the whole vehicle exceeds the limit or the lifting torque exceeds the set value, the folding arm crane 21 will automatically lock the extension function to ensure that the operation of the whole vehicle is safer.

[0062] Before using the vehicle, it is necessary to check the vehicle route and the road conditions at the bottom of the station position. If conditions permit, a ground pressure resistance test can be carried out. The test results should meet the national standard values ​​for the hardness of the road surface of mobile cranes. If the hardness of the road surface does not meet the requirements, backfilling and compaction are required until the lifting requirements are met. Drive the vehicle to the side of the object to be hoisted and determine the station position. Before hoisting, it is necessary to ensure that the vehicle hydraulic oil pump is running. The hydraulic oil pump inputs high-pressure oil into the folding arm crane 21 through the hydraulic oil pipe to drive the slewing bearing 2103 and the boom cylinder 2107 to move. First, start the one-button leveling function of the outrigger to support the outrigger 2101 in place, and strictly check the outrigger 2101 to ensure that it is firmly in contact with the ground and there is no false leg phenomenon. Start the operating handle, first extend the middle arm 2105, so that the middle arm 2105 forms an angle of 45°-78° with the horizontal ground, then extend the telescopic arm 2106, so that the hook is directly above the object to be hoisted, start the operating handle, and slowly drop the hook until it contacts the object to be hoisted, use the binding belt to firmly bind the object to be hoisted, and hang the binding belt on the hook, slowly start the operating handle, retract the hook, and lift the object to be hoisted off the ground. At this point, the lifting operation of the heavy object is completed.

[0063] Furthermore, the electric multifunctional working vehicle including the folding arm crane 21 also includes: a left skirt 9, a left skirt operating door 10, a right skirt 12 and a right skirt operating door 13; the left skirt 9 and the right skirt 12 are respectively arranged on the lower parts of both sides of the multifunctional working compartment 3, the left skirt operating door 10 is arranged on the side wall of the left skirt 9 away from the chassis 1, and the right skirt operating door 13 is arranged on the side wall of the right skirt 12 away from the chassis 1.

[0064] The left skirt 9, the left skirt operating door 10, the fender 11, the right skirt 12 and the right skirt operating door 13 are installed under the second-class chassis 1 by welding; the left skirt 9 and the right skirt 12 provide side protection for the vehicle; the left skirt operating door 10 and the right skirt operating door 13 are reserved operating doors, which are convenient for the subsequent maintenance of the second-class chassis 1; the fender 11 is installed behind the rear axle of the second-class chassis 1 to provide protection for the rear line of the vehicle. The left skirt 9 and the right skirt 12 can provide a certain side protection capability for the vehicle body, protect all parts of the second-class chassis 1 from external damage, and make the overall appearance more beautiful. The main function of the left skirt operating door 10 and the right skirt operating door 13 is to provide a reserved operating space for the vehicle itself to add fuel, urea and parts maintenance. The fender 11 is made of stainless steel and rubber soft leather, which mainly prevents splashes from damaging the rear line and parts of the vehicle body when the vehicle is driving in rainy and snowy weather and muddy roads.

[0065] Furthermore, the electric multifunctional working vehicle including the folding arm crane 21 also includes: a rolling door 8; the multifunctional working compartment 3 is a frame structure, and the rolling doors 8 are arranged on both sides of the multifunctional working compartment 3.

[0066] Specifically, the rolling shutter door 8 is installed on both sides of the multifunctional working compartment 3 to provide protection for the internal functions of the vehicle. The rolling shutter door 8 is an up and down opening type, which will not affect the opening and closing of the vehicle door in some narrow working spaces, and has stronger spatial adaptability; it can also be designed as a hinged opening and closing door according to usage requirements.

[0067] Furthermore, the electric multifunctional working vehicle including the folding arm crane 21 also includes: a lighting pan-tilt lamp 2; the lighting pan-tilt lamp 2 is fixedly arranged on the top of the vehicle head.

[0068] Specifically, the lighting pan-tilt lamp 2 is fixed on the top of the vehicle by bolts. The lighting pan-tilt lamp 2 is powered by the battery provided by the chassis 1. The mounting base of the lighting pan-tilt lamp 2 has a built-in rotation function, which can enable the lamp to rotate 360° without dead angles. It has two operation modes: remote control and wired control, providing powerful lighting for night construction.

[0069] Please refer to Figure 6-Figure 8 The electric multifunctional working vehicle including the folding arm crane 21 further comprises: a forklift gantry 5; the forklift gantry 5 is fixedly arranged on the outer side of the side wall of the multifunctional working compartment 3 away from the vehicle head.

[0070] The forklift mast 5 includes a fork tine moving frame 501, fork tine 502, a fork tine locking device 503, a lifting cylinder 504, a chain 505, a mast reinforcement plate 506, a cable guide device 507, a tilt cylinder 508, a tilt cylinder mounting frame 5090, a mounting shaft 510, and a fork tine rotating shaft 511; the fork tine 502 can rotate 90° counterclockwise around the fork tine rotating shaft 511 and remain parallel to the ground.

[0071] When lifting the transformer, the transformer needs to be placed on a hard road surface, and the supporting channel steel at the bottom of the transformer must not sink into the ground. When lifting the transformer with a fork, drive the entire vehicle to the front of the transformer, first rotate the fork tine 502 around the fork tine shaft 511 to be parallel to the ground, and adjust the extension length of the lifting cylinder 504, lower the fork tine 502 to fit the ground, then adjust the extension length of the tilting cylinder 508, and tilt the forklift mast 5 forward as a whole around the installation axis 510, so that the front end of the fork tine 502 is close to the ground. Next, start the vehicle and reverse slowly until the fork tine 502 is completely deep into the supporting channel steel at the bottom of the transformer. Then adjust the extension length of the tilting cylinder, and tilt the forklift mast 5 as a whole toward the multifunctional work compartment 3 to ensure that the transformer is stably stressed and there is no risk of slipping. Finally, adjust the extension length of the lifting cylinder 504, lift the transformer to the specified installation height, and complete the installation of the transformer.

[0072] Please refer to Figure 9-10 The electric multifunctional working vehicle including the folding arm crane 21 also includes: a cable reel 7; the cable reel 7 is fixedly arranged in the middle of the multifunctional working compartment 3.

[0073] The cable reel 7 includes a reel outer plate 701, a reel reinforcement rib 702, a reel inner plate 703, a chain 704, a main shaft 705, a bearing seat 706, a reel mounting frame 707, a small sprocket 708 and a large sprocket 709; the small sprocket, the large sprocket and the chain are meshed with each other; the large sprocket and the main shaft are circumferentially positioned by keyways and flat keys to achieve common rotation; after the main shaft passes through the bearing seat, it is fixedly connected to the reel outer plate, the reel reinforcement rib and the reel inner plate to achieve synchronous rotation; the bearing seat is fixed to the upper surface of the reel mounting frame by bolts to provide rotation support for the main shaft; the small sprocket is driven by an electric motor or a hydraulic motor to provide power for the cable reel 7 to reel in and out the cable; the cable reel 7 is fixedly installed in the multi-functional working compartment 3 through the reel mounting frame. The outer plate of the cable reel 7 adopts a lightweight design to reasonably reduce its own weight while ensuring its carrying capacity. The cable reel 7 can provide convenience for work scenarios such as outdoor cable laying, overhead line tensioning, recycling of new and old cables, and recycling of traction ropes. The outer plate of the reel is a detachable structure, which is convenient for the recycling of the entire reel of cables.

[0074] The specific operation mode of cable retracting and releasing operation is as follows: the vehicle hydraulic pump inputs high-pressure oil into the hydraulic motor through the hydraulic oil pipe, drives the hydraulic motor to rotate, and the output shaft of the hydraulic motor is connected to the small sprocket 708, which can drive the small sprocket 708 to rotate. The small sprocket 708 drives the large sprocket 709 to rotate through the chain 704, and the large sprocket 709 drives the inner plate 703 of the reel, the reel reinforcement rib 702 and the outer plate 701 of the reel to rotate together through the main shaft 705. When in use, the cable traction rope is wound in the traction groove of the outer plate 701 of the reel, and then the hydraulic motor is started to drive the cable reel 7 to rotate, so as to wind the cable on the cable reel 7. After the cable is wound, the cable can be tied firmly through the traction groove of the outer plate 701 and the inner plate 703 of the reel with a strapping belt, and then the outer plate 701 of the reel is removed, and the cable reel can be removed. The bottom of the reel mounting frame 707 is fixed to the vehicle body by bolts, and can be moved with the vehicle, with high mobility.

[0075] Please refer to Fig.11 and Fig.12 The electric multifunctional working vehicle including the folding arm crane 21 further includes: an aluminum alloy shelf 6 and a tool box 4; the aluminum alloy shelf 6 is fixedly arranged at one end of the multifunctional working compartment 3 close to the front of the vehicle; the tool box 4 is fixedly arranged at one end of the multifunctional working compartment 3 away from the front of the vehicle.

[0076] The aluminum alloy shelf 6 includes an aluminum alloy profile 601, a shelf bottom plate 602, an aluminum alloy corner piece 603 and a shelf side baffle 604; the aluminum alloy shelf 6 is fixedly installed in the multifunctional work compartment 3 by bolts; the aluminum alloy profile is spliced ​​into the main frame of the aluminum alloy shelf 6 by the aluminum alloy corner pieces and bolts; the shelf bottom plate can be used as a storage base for the cargo on the vehicle. The aluminum alloy frame is spliced ​​by aluminum alloy profiles, aluminum alloy corner pieces and steel plates, and adopts a lightweight design as a whole, and has a strong load-bearing capacity. It divides the interior space of the vehicle into multiple levels, and the space utilization is more reasonable.

[0077] The toolbox 4 includes a toolbox body 401, a toolbox door 402, a toolbox door 402 lock, and a toolbox 4 hinge; the toolbox body 401 is embedded in the multifunctional work compartment 3 by welding; the toolbox door 402 is fixedly installed on the outer surface of the multifunctional work compartment 3 by the toolbox 4 hinge, and the toolbox door 402 can be flexibly rotated; the toolbox body 401 and the work compartment door are locked by the toolbox door 402 lock. The toolbox 4 reasonably utilizes the space on both sides of the vehicle body, and the toolbox door 402 and the toolbox body 401 are sealed with rubber, which has good waterproof performance and can provide on-board tools for outdoor emergency rescue or power construction.

[0078] Furthermore, the electric multifunctional work vehicle including the folding arm crane 21 also includes: a generator 19 assembly; the generator 19 assembly includes: a generator 19 and a sliding support, the generator 19 is fixedly mounted on the top of the sliding support, the sliding support is slidably connected to the bottom of the multifunctional work compartment 3 through a slide, and the generator 19 can move horizontally along the slide driven by an external force.

[0079] In addition, the electric multifunctional working vehicle including the folding arm crane 21 also includes: a hydraulic oil tank 14, a multi-way valve group and its protective cover 15, a hydraulic winch 16, a switching valve 17, a grounding reel 18 and a spare tire 20, all of which are installed inside the multifunctional working compartment 3; the hydraulic oil tank 14 is fixed inside the multifunctional working compartment 3 by bolts to provide hydraulic oil for the hydraulic system of the whole vehicle; the multi-way valve group and its protective cover 15 are fixed inside the multifunctional working compartment 3 by rivets to complete the operation of the hydraulic system of the whole vehicle; the hydraulic winch 16 is fixed inside the multifunctional working compartment 3 by bolts, which can provide 2 tons of pulling force, mainly used for equipment towing or emergency rescue work; the switching valve 17 is fixed inside the multifunctional working compartment 3 by bolts, which is mainly used for switching of hydraulic oil circuits; the grounding reel 18 is fixed inside the multifunctional working compartment 3 by bolts to ensure safe grounding of the whole vehicle in the working state; the generator 19 is fixed inside the multifunctional working compartment 3 by bolts, and a tray is provided at the bottom of the generator 19. When in use, the generator 19 can be pulled out of the vehicle to prevent oil smoke from polluting other functions in the multifunctional working compartment 3; the spare tire 20 is fixed on the bottom plate of the shelf by bolts.

[0080] The embodiment of the present invention is intended to protect an electric multifunctional working vehicle including a folding arm crane, comprising: a vehicle head, a chassis, a folding arm crane and a multifunctional working compartment; the folding arm crane is fixedly mounted on the chassis beam between the vehicle head and the multifunctional working compartment; the folding arm crane comprises: a load-bearing base, a slewing bearing, a boom, an intermediate arm, a telescopic arm, a boom cylinder, a rotation detection component and a control component, the load-bearing base is fixedly mounted on the chassis beam, the boom is rotatably connected to the top of the load-bearing base through a slewing bearing, the boom, the intermediate arm and the telescopic arm are connected in sequence, and the two ends of the boom cylinder are respectively connected to the boom and the intermediate arm; the control component is electrically connected to the slewing bearing and the boom cylinder, and the folding arm crane is driven to rotate in the horizontal and vertical directions through the slewing bearing and the boom cylinder; the control component is also electrically connected to the rotation detection component, and the telescopic length of the boom cylinder is obtained through the rotation detection component. When the telescopic length is within the safe telescopic range, the slewing bearing is controlled to rotate normally to drive the folding arm crane to move, so as to avoid the vehicle head and the multifunctional working compartment. The above technical scheme has the following effects:

[0081] 1. The knuckle boom crane is fixed on the chassis beam between the front of the vehicle and the multi-functional working compartment, which makes full use of the existing structural space of the vehicle and makes the vehicle structure more compact. Without increasing the overall length and width of the vehicle, the knuckle boom crane is reasonably placed, which improves the space utilization rate and provides more available space for other equipment and operations;

[0082] 2. The rotation angle detection component is set up to accurately monitor the rotation angle of the slewing bearing of the knuckle boom crane. When the rotation angle is detected to be within the safe rotation range, the boom cylinder is controlled to drive the middle arm to move, effectively avoiding the risk of collision between the knuckle boom crane and the vehicle head and the multi-functional working compartment during operation, greatly improving the safety of the operation, reducing the possibility of equipment damage and casualties, and providing reliable safety protection for operators;

[0083] 3. Through precise detection and control of the rotation angle, repeated adjustment operations due to concerns about collision are reduced, making the operation of the folding arm crane smoother and more efficient. Operators can focus more on the task itself without being distracted by the risk of collision, thereby improving overall operating efficiency, shortening operating time, and providing strong support for the rapid development of power operations.

[0084] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the appended claims of the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the appended claims, or the equivalent forms of such scope and boundaries.

Claims

1. An electric multifunctional working vehicle with a folding arm crane, characterized in that: include: A vehicle head, a chassis (1), a folding arm crane (21) and a multifunctional working compartment (3); The folding arm crane (21) is fixedly mounted on a chassis (1) beam between the vehicle head and the multifunctional working compartment (3); The folding arm crane (21) comprises: a load-bearing base (2102), a slewing bearing (2103), a boom (2104), an intermediate arm (2105), a telescopic arm (2106), a boom oil cylinder (2107), a rotation detection component and a control component. The load-bearing base (2102) is fixedly arranged on the main beam of the chassis (1); the boom (2104) is rotatably connected to the top of the load-bearing base (2102) through the slewing bearing (2103); the boom (2104), the intermediate arm (2105) and the telescopic arm (2106) are connected in sequence; and the two ends of the boom oil cylinder (2107) are respectively connected to the boom (2104) and the intermediate arm (2105); The control component is electrically connected to the slewing bearing (2103) and the boom oil cylinder (2107), and drives the folding arm crane (21) to rotate in the horizontal direction and the vertical direction through the slewing bearing (2103) and the boom oil cylinder (2107); The control component is also electrically connected to the rotation detection component, and the telescopic length of the boom cylinder (2107) is obtained through the rotation detection component. When the telescopic length is within the safe telescopic range, the slewing bearing (2103) is controlled to rotate normally to drive the folding arm crane to move, so as to avoid the vehicle head and the multifunctional working compartment (3).

2. The electric multifunctional working vehicle with a folding arm crane according to claim 1, characterized in that: The rotation detection assembly comprises a travel switch, and the travel switch is arranged at the piston of the boom cylinder (2107); The rotation detection component receives the detection signal of the travel switch and sends it to the control component; The control component determines that the telescopic length is within the safe telescopic range based on the received detection signal, and controls the slewing bearing to rotate normally to drive the folding arm crane to move.

3. The electric multifunctional working vehicle with a folding arm crane according to claim 1, characterized in that: The telescopic arm (2106) includes a plurality of telescopically connected single arms.

4. The electric multifunctional working vehicle with a folding arm crane according to claim 1, characterized in that: The folding arm crane (21) further comprises: a supporting leg (2101); The supporting legs (2101) are telescopically connected to the load-bearing base (2102); When unfolded, the supporting legs (2101) first move horizontally in a direction away from the load-bearing base (2102), and then move downward to abut against the ground.

5. The electric multifunctional working vehicle with a folding arm crane according to any one of claims 1 to 4, characterized in that: Also includes: A left side skirt (9), a left side skirt operating door (10), a right side skirt (12) and a right side skirt operating door (13); The left side skirt (9) and the right side skirt (12) are respectively arranged at the lower parts of both sides of the multifunctional working compartment (3); the left side skirt operating door (10) is arranged on a side wall of the left side skirt (9) away from the chassis (1); and the right side skirt operating door (13) is arranged on a side wall of the right side skirt (12) away from the chassis (1).

6. The electric multifunctional working vehicle with a folding arm crane according to claim 5, characterized in that: Also includes: Lighting PTZ lamp (2); The lighting platform lamp (2) is fixedly arranged on the top of the vehicle head.

7. The electric multifunctional working vehicle with a folding arm crane according to claim 6, characterized in that: Also includes: Forklift mast (5); The forklift door frame (5) is fixedly arranged on the outer side of the side wall of the multifunctional working compartment (3) away from the vehicle head.

8. The electric multifunctional working vehicle with a folding arm crane according to claim 7, characterized in that: Also includes: Cable reel (7); The cable reel (7) is fixedly arranged in the middle of the multifunctional working compartment (3).

9. The electric multifunctional working vehicle with a folding arm crane according to claim 8, characterized in that: Also includes: Aluminum alloy shelves (6) and tool boxes (4); The aluminum alloy shelf (6) is fixedly mounted on one end of the multifunctional working compartment (3) close to the vehicle head; The tool box (4) is fixedly arranged at one end of the multifunctional working compartment (3) away from the vehicle head.

10. The electric multifunctional working vehicle with a folding arm crane according to claim 9, characterized in that: Also includes: Generator components; The motor assembly comprises: a generator (19) and a sliding support, wherein the generator (19) is fixedly mounted on the top of the sliding support, the sliding support is slidably connected to the bottom of the multifunctional working compartment (3) via a slideway, and the generator (19) can move horizontally along the slideway under the drive of an external force.

Images