Lifting appliance for production of overhead working truck assembly

Abstract

The invention relates to the technical field of lifting equipment, in particular to a lifting appliance for production of an overhead working truck assembly, which comprises a lifting appliance main body and a triangular cone-shaped leveling lifting mechanism fixedly mounted at the bottom of the lifting appliance main body, a triangular multi-point fixing mechanism and a synchronous adjusting mechanism which are used for fixing and adjusting a lifting arm of the operation vehicle are fixedly installed at the bottom of the triangular-cone-shaped abutting-against lifting mechanism, and the triangular-cone-shaped abutting-against lifting mechanism comprises a lifting assembly and an abutting-against assembly. The triangular multi-point fixing mechanism comprises two multi-point clamping mortise lock assemblies and a pulling assembly, wherein the two multi-point clamping mortise lock assemblies are symmetrical in the front-back direction, and the pulling assembly is used for pulling the multi-point clamping mortise lock assemblies. The arc-shaped clamping plates and the inserting rods are used for clamping a second hydraulic cylinder on a lifting arm of the working vehicle and inserting the second hydraulic cylinder into a round hole in a hinge seat on the lifting arm of the working vehicle to form a multi-point type triangular lifting structure, a plurality of stress points exist in the lifting process, the stress points are evenly distributed in the whole triangular structure, and stress is effectively dispersed.

Description

Technical Field

[0001] The invention relates to the technical field of hoisting equipment, and more specifically, to a hoisting sling for producing aerial work vehicle components. Background Art

[0002] Aerial work vehicle, also known as aerial lifting platform or aerial work platform, is a special mechanical equipment used to lift personnel and tools to high altitudes for installation, maintenance, cleaning and other work. The boom assembly of the aerial work vehicle is one of the core components for realizing aerial work. It is responsible for lifting the work platform to the required height and can perform precise position adjustments. When installing the boom assembly of the aerial work vehicle, a sling is generally used for auxiliary installation.

[0003] At present, when the boom assembly of the aerial work vehicle is being hoisted and installed, the electric winch is generally used to control the lifting rope or wire rope to lower the hook to the top of the boom of the work vehicle, and then the worker fixes the boom of the work vehicle through a fixing fixture (claw or strap), and then lifts the boom to the required installation position for installation. However, this hoisting and installation method still has certain defects: 1. When the boom of the work vehicle is fixed by a fixing fixture for hoisting, there are usually only a single or a few fixing points, and there is a lack of mutual connection between the fixing points, resulting in the overall hoisting instability. 1. The stability is poor, and the boom is prone to shaking due to inertia during the lifting process, and when it is moved to the installation position for installation, the shaking boom is not easy to align and install; 2. Due to the lack of angle adjustment function, the boom of the work vehicle generally needs to be adjusted by winding and lowering the wire rope or manual assistance during the installation process for alignment and installation, which not only reduces the alignment and installation efficiency, but also increases the operation risk; 3. After the boom is lifted, the weight distribution of the boom is uneven, which causes the hoisting frame to tilt slightly, affecting the stability of the lifting and is not easy to align during installation. Summary of the invention

[0004] In order to solve the above-mentioned technical problems, the present invention provides a lifting sling for the production of aerial work vehicle components, including a lifting sling main body and a triangular cone-shaped leveling lifting mechanism fixedly installed at the bottom of the lifting sling main body, a triangular multi-point fixing mechanism and a synchronous adjustment mechanism for fixing and adjusting the work vehicle boom are fixedly installed at the bottom of the triangular cone-shaped leveling lifting mechanism, the triangular cone-shaped leveling lifting mechanism includes a lifting assembly and a leveling assembly, the triangular multi-point fixing mechanism includes two multi-point clamping latch assemblies that are symmetrical front and back and a pulling assembly for pulling the multi-point clamping latch assemblies, the synchronous adjustment mechanism includes two rotation adjustment assemblies that are symmetrical front and back and a driving assembly for driving the rotation adjustment assembly, and two lifting plates that are symmetrical front and back are fixedly installed at the bottom of the lifting assembly.

[0005] The rotation adjustment assembly includes an adjustment plate installed at one end of a rotating shaft and a rotating shaft that is symmetrical in front and behind. The multi-point clamping and latching assembly includes a plurality of limit rods that slide forward and backward and penetrate the hanging plate. The rotating shaft is located between the front and rear hanging plates. A movable plate is commonly installed at one end of the limit rods that is close to the rotating shaft. The rotating shaft is rotatably installed on the side of the movable plate away from the limit rod. An insertion rod and two arc-shaped clamping plates that are symmetrical in left and right are fixedly installed on one side of the front and rear adjustment plates that are close to each other. The arc-shaped clamping plate is located above the insertion rod.

[0006] The pulling assembly drives the moving plates on the front and rear sides to approach each other, driving the arc-shaped clamping plates and the inserting rods on the front and rear sides to clamp and fix the boom of the working vehicle.

[0007] Furthermore, the synchronous adjustment mechanism also includes an annular groove formed on one side of the movable plate close to the adjustment plate, and a plurality of sliding rods slidably connected to the annular groove and distributed in a circle are fixedly mounted on the side of the adjustment plate close to the movable plate.

[0008] Furthermore, the driving assembly includes a spline shaft rotatably installed between two lifting plates, two driving pulleys are provided with a sliding sleeve on the outer side of the spline shaft, and driven pulleys are fixedly provided at one end of the two rotating shafts away from each other, and a belt is commonly connected to the driving pulley and the corresponding driven pulley for transmission, and a reduction motor with an output shaft fixedly installed on the front side of the front lifting plate and fixedly connected to the spline shaft, and connecting sleeves are fixedly installed on the top of the two movable plates, the connecting sleeve sliding sleeve is arranged on the outer side of the spline shaft, and the diameter of the center hole of the connecting sleeve is larger than the diameter of the spline shaft, and the connecting sleeve is rotatably connected to the driving pulley on the same side.

[0009] Furthermore, the lifting device body includes two front-to-back symmetrical beams, two left-right symmetrical Y-axis sports cars are installed on the bottom of the two beams, a lifting platform is installed on the top of the two beams through the X-axis sports car, two left-right symmetrical wire drums are rotatably installed on the top of the lifting platform, a number of steel wire ropes are wound around the outside of the steel wire drums, and a hook is installed on the bottom of the several steel wire ropes.

[0010] Furthermore, the lifting assembly includes a mounting plate fixedly mounted on the lifting hook and four lifting ropes fixedly mounted on the bottom of the mounting plate and distributed in a rectangular shape. A lifting frame is commonly mounted at the bottom ends of the four lifting ropes. A triangular cone is formed between the lifting frame, the lifting ropes and the mounting plate. The lifting plate is fixedly mounted on the bottom of the lifting frame.

[0011] Furthermore, the leveling assembly includes a hydraulic cylinder 1 fixedly mounted on the bottom of the mounting plate and a lower pressure plate fixedly mounted on the output end of the hydraulic cylinder 1, and an abutment plate located directly below the lower pressure plate and cooperating with the lower pressure plate is fixedly mounted on the hanging frame.

[0012] Furthermore, the work vehicle boom includes a fixed arm and a telescopic arm slidably installed in the fixed arm and composed of multiple segments. Two hydraulic cylinders 2 are fixedly installed on the top of the telescopic arm, which are symmetrical front and back. The two hydraulic cylinders 2 respectively drive the two segments of the telescopic arm. A hydraulic cylinder 4 for driving the rightmost telescopic arm is fixedly installed inside the fixed arm, and an articulated seat is fixedly installed on the bottom of the fixed arm.

[0013] Furthermore, the pulling assembly includes two driving plates fixedly installed on the top of the front moving plate and two fixed pulleys fixedly installed on the bottom of the lifting frame, and two follower plates fixedly installed on the top of the rear moving plate. The driving plate, follower plate and fixed pulley are all symmetrically arranged. A pull rope is wound around the outside of the fixed pulley, and the two ends of the pull rope are respectively fixedly connected to the driving plate and follower plate on the same side.

[0014] Furthermore, a hydraulic cylinder three is fixedly installed on the front side of the front hanging plate, and the output end of the hydraulic cylinder three slides through the front hanging plate and is fixedly connected to the front moving plate.

[0015] Furthermore, a plurality of return springs are fixedly installed on the rear side of the rear lifting plate. The number of return springs corresponds to the limit rods and they are covered on the outside of the corresponding limit rods. A circular plate fixedly connected to the limit rod is fixedly installed at the rear end of the return spring.

[0016] The beneficial effects of the present invention are: 1. The present invention clamps the hydraulic cylinder 2 on the work vehicle boom and inserts the circular hole on the hinged seat on the work vehicle boom through the arc-shaped clamping plate and the insertion rod, thereby forming a multi-point triangular hoisting structure. There are multiple stress points during the hoisting process, and the stress points are evenly distributed in the entire triangular structure, which effectively disperses the stress and avoids the situation where there is only a single stress point during the hoisting process and possible stress concentration, thereby reducing the risk of damage to the sling. At the same time, the triangular structure has high overall rigidity and can effectively resist external vibration and impact, maintain the stability of the hoisting process, and can be more stable when the work vehicle boom is hoisted to the installation position for alignment and installation, so that there is no need for staff to assist in stabilizing the work vehicle boom for alignment and installation, thereby greatly improving the alignment and installation efficiency while reducing the risk of operation.

[0017] 2. The present invention achieves fine adjustment of the angle of the work vehicle boom by rotating the adjustment component. By fine-tuning the position, the work vehicle boom can be accurately aligned to the required installation position during the installation process, avoiding installation errors caused by inaccurate position, and there is no need to adjust the work vehicle boom for alignment installation by winding or lowering the wire rope or manual assistance, thereby further improving the alignment and installation efficiency and reducing the risk of operation.

[0018] 3. The present invention forms a multiple protection mechanism through the dual fixation of the arc-shaped clamping plate and the plug rod. Even if one of the fixing points fails, the other fixing points can still continue to function to ensure that the boom will not fall suddenly, thereby greatly improving the safety during the lifting process.

[0019] 4. The present invention can ensure that the lifting frame always remains in a horizontal state by pressing the lower pressure plate against the abutment plate, thereby ensuring that each fixed point on the work vehicle boom is evenly stressed, avoiding damage or instability of the sling due to excessive force on a certain fixed point, and making the center of gravity of the work vehicle boom more stable, thereby further avoiding the boom from shaking back and forth during the lifting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the lifting arm of the lifting operation vehicle of the present invention.

[0021] Figure 2 It is a partial three-dimensional structural schematic diagram of the hook, the lifting rope, the mounting plate and the lifting frame of the present invention.

[0022] Figure 3 It is a partial three-dimensional structural schematic diagram of the triangular multi-point fixing mechanism and the synchronous adjustment mechanism of the present invention.

[0023] Figure 4 It is a partial three-dimensional structural schematic diagram of the return spring, circular plate, pull rope, drive plate and follower plate of the present invention.

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of the hanging plate, the moving plate, the adjusting plate and the rotating shaft part of the present invention.

[0025] Figure 6 It is a three-dimensional structural schematic diagram of the spline shaft, reduction motor, driving pulley, driven pulley and belt part of the present invention.

[0026] Figure 7 It is an exploded view of the hydraulic cylinder 3, the driving plate, the limiting rod and the moving plate structure of the present invention.

[0027] Figure 8 It is a schematic diagram of the three-dimensional structure of the fixed arm, telescopic arm, hydraulic cylinder and articulated seat of the present invention.

[0028] In the figure: 1. main body of the sling; 101. crossbeam; 102. Y-axis sports car; 103. X-axis sports car; 104. lifting platform; 105. wire drum; 106. wire rope; 107. hook; 2. triangular cone-shaped leveling lifting mechanism; 201. lifting assembly; 202. leveling assembly; 2011. mounting plate; 2012. lifting rope; 2013. lifting frame; 2021. hydraulic cylinder 1; 2022. abutment plate; 2023. lower pressure plate; 3. work vehicle boom; 301. fixed arm; 302. telescopic arm; 303. hydraulic cylinder 2; 304. articulated seat; 4. triangular multi-point fixing mechanism; 5. synchronous adjustment mechanism; 6. lifting plate; 401. multi-point Clamping and latching assembly; 402, pulling assembly; 4011, arc-shaped clamping plate; 4012, inserting rod; 4013, moving plate; 4014, limiting rod; 4021, hydraulic cylinder three; 4022, fixed pulley; 4023, pulling rope; 4024, driving plate; 4025, following plate; 4026, reset spring; 4027, circular plate; 501, rotating adjustment assembly; 502, driving assembly; 5011, rotating shaft; 5012, adjusting plate; 5013, sliding rod; 5014, annular groove; 5021, spline shaft; 5022, driving pulley; 5023, driven pulley; 5024, belt; 5025, reduction motor; 5026, connecting sleeve. DETAILED DESCRIPTION

[0029] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that the discussion of these embodiments is to enable those skilled in the art to better understand and implement the subject matter described herein. The functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the present specification. Various examples may omit, replace or add various processes or components as needed. In addition, the features described relative to some examples may also be combined in other examples.

[0030] See also Figure 1 , Figure 2 and Figure 3 In this embodiment, a lifting sling for aerial work vehicle component production is proposed, including a sling body 1 and a triangular cone-shaped leveling lifting mechanism 2 fixedly installed at the bottom of the sling body 1, a triangular multi-point fixing mechanism 4 and a synchronous adjustment mechanism 5 for fixing and adjusting the work vehicle boom 3 are fixedly installed at the bottom of the triangular cone-shaped leveling lifting mechanism 2, the triangular cone-shaped leveling lifting mechanism 2 includes a lifting component 201 and a leveling component 202, the triangular multi-point fixing mechanism 4 includes two multi-point clamping and locking components 401 that are symmetrical in front and back and a pulling component 402 for pulling the multi-point clamping and locking components 401, and the synchronous adjustment mechanism 5 includes two rotation adjustment components 501 that are symmetrical in front and back and a driving component 502 for driving the rotation adjustment component 501.

[0031] See also Figure 1 , Figure 2 and Figure 8 The work vehicle boom 3 includes a fixed arm 301 and a telescopic arm 302 slidably installed in the fixed arm 301 and composed of multiple segments. Two hydraulic cylinders 303 symmetrically installed front and back are fixedly installed on the top of the telescopic arm 302. The two hydraulic cylinders 303 drive the two segments of the telescopic arm 302 respectively. A hydraulic cylinder 4 (not shown in the figure) connected to the rightmost end of the telescopic arm 302 is fixedly installed inside the fixed arm 301, and an articulated seat 304 is fixedly installed at the bottom of the fixed arm 301.

[0032] See also Figure 1 The sling body 1 includes two front-to-back symmetrical crossbeams 101, and two left-right symmetrical Y-axis sports cars 102 are installed at the bottom of the two crossbeams 101. The Y-axis sports car 102 is connected to the external track. A lifting platform 104 is installed at the top of the two crossbeams 101 through an X-axis sports car 103. Two left-right symmetrical wire drums 105 are rotatably installed on the top of the lifting platform 104. A plurality of steel wire ropes 106 are wound around the outside of the steel wire drums 105, and a hook 107 is installed at the bottom of the plurality of steel wire ropes 106.

[0033] See also Figure 1 , Figure 2 and Figure 3 The hoisting assembly 201 includes a mounting plate 2011 fixedly mounted on the hook 107 and four hoisting ropes 2012 fixedly mounted on the bottom of the mounting plate 2011 and distributed in a rectangular shape. A hoisting frame 2013 is commonly installed at the bottom ends of the four hoisting ropes 2012. A triangular cone is formed between the hoisting frame 2013, the hoisting ropes 2012 and the mounting plate 2011. Two front-to-back symmetrical hoisting plates 6 are fixedly mounted at the bottom of the hoisting frame 2013.

[0034] See also Figure 1 , Figure 2 and Figure 3 The leveling component 202 includes a hydraulic cylinder 2021 fixedly mounted on the bottom of the mounting plate 2011 and a lower pressure plate 2023 fixedly mounted on the output end of the hydraulic cylinder 2021. A contact plate 2022 located directly below the lower pressure plate 2023 and cooperating with the lower pressure plate 2023 is fixedly mounted on the hanging frame 2013.

[0035] When in use, the X-axis sports car 103 and the Y-axis sports car 102 are controlled to move to drive the wire drum 105 to move, thereby driving the hook 107 to move, and then driving the hoisting frame 2013 to move to the position of the boom 3 of the work vehicle to be hoisted. Then, the wire drum 105 is controlled to lower the wire rope 106, driving the hook 107 to move downward, thereby driving the hoisting frame 2013 to move downward, and then driving the hoisting frame 2013 and the two hoisting plates 6 to be erected on the outside of the boom 3 of the work vehicle to be hoisted, and then the front and rear multi-point clamping latch assemblies 401 are controlled to move closer to each other through the pulling assembly 402, clamping the two hydraulic cylinders 303 and inserting the hinge It is installed in the circular hole on the socket 304 to form a multi-point triangular lifting structure, forming multiple stress points and the stress points are evenly distributed in the entire triangular lifting structure, which effectively disperses the stress and avoids the situation where there is only a single stress point during the lifting process and possible stress concentration, thereby reducing the risk of damage to the sling; at the same time, the overall rigidity of the triangular lifting structure is high, which can effectively resist external vibration and impact, maintain the stability of the lifting process, and double-fix the boom 3 of the work vehicle, forming a multiple protection mechanism. Even if one of the fixing points fails, the other fixing points can still continue to function to ensure that the boom will not fall suddenly.

[0036] After fixing the work vehicle boom 3, control the wire drum 105 to reel in the wire rope 106, drive the hook 107 to move upward, thereby drive the lifting frame 2013 to move upward, and then drive the fixed work vehicle boom 3 to move upward and lift through the lifting frame 2013 and two lifting plates 6. After the work vehicle boom 3 is lifted, a triangular cone with good anti-torsion ability is formed between the lifting frame 2013, the lifting rope 2012 and the mounting plate 2011. At the same time, the center of gravity of the lifting frame 2013 and the boom is more stable, which can effectively prevent the lifting rope 2012 from twisting or swinging back and forth during the lifting process, causing the work vehicle boom 3 to shake, thereby further improving the stability of the work vehicle boom 3 during the lifting process.

[0037] After the boom 3 of the work vehicle is lifted, the lifting frame 2013 may tilt slightly due to the uneven weight distribution of the boom. Therefore, the hydraulic cylinder 2021 is started at this time. The output end of the hydraulic cylinder 2021 pushes the lower pressure plate 2023 to move downward until it contacts the abutment plate 2022. Then, as the lower pressure plate 2023 continues to move downward, it will squeeze the abutment plate 2022. By moving the lower pressure plate 2023 downward and squeezing the abutment plate 2022, it can be ensured that the lifting frame 2013 always remains in a horizontal state. The horizontal lifting frame 2013 can ensure that each fixed point on the work vehicle boom 3 is evenly stressed, avoiding damage or instability due to excessive force on a certain fixed point. In addition, the horizontal lifting frame 2013 makes the center of gravity of the work vehicle boom 3 more stable, thereby further avoiding the boom from shaking back and forth during the lifting process.

[0038] After the lower pressure plate 2023 is pressed against the abutment plate 2022, the X-axis sports car 103 and the Y-axis sports car 102 are controlled to move to drive the wire drum 105 to move, thereby driving the hook 107 to move, and then the lifted work vehicle boom 3 is driven to move to the installation position through the lifting frame 2013 and the lifting plate 6 for installation. During the installation process, the work vehicle boom 3 is controlled to rotate slightly by the rotation adjustment component 501 to fine-tune the angle of the work vehicle boom 3. The fine-tuning function enables the work vehicle boom 3 to be accurately aligned to the required installation position during the installation process, reducing installation errors caused by inaccurate position, and there is no need to adjust the work vehicle boom 3 for alignment and installation by winding and lowering the wire rope 106 or manual assistance, thereby greatly improving the alignment and installation efficiency while reducing the risk of the operation. After the installation is completed, the work vehicle boom 3 is released, and then the above steps are repeated to perform a cyclic production and installation operation.

[0039] See also Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 The rotation adjustment component 501 includes a rotating shaft 5011 and an adjustment plate 5012 installed at one end close to the front and rear symmetrical rotating shafts 5011. The multi-point clamping latch component 401 includes a plurality of limit rods 4014 that slide forward and backward and penetrate the hanging plate 6. The rotating shaft 5011 is located between the front and rear hanging plates 6. A movable plate 4013 is commonly installed at one end of the plurality of limit rods 4014 close to the rotating shaft 5011. The rotating shaft 5011 is rotatably installed on a side of the movable plate 4013 away from the corresponding limit rod 4014. An insertion rod 4012 and two left-right symmetrical arc-shaped clamping plates 4011 are fixedly installed on one side close to the front and rear adjustment plates 5012. The arc-shaped clamping plates 4011 are located above the insertion rod 4012.

[0040] See also Figure 2 , Figure 3 , Figure 4 and Figure 5 The pulling assembly 402 includes two driving plates 4024 fixedly mounted on the top of the front moving plate 4013 and two fixed pulleys 4022 fixedly mounted on the bottom of the hanging frame 2013. Two follower plates 4025 are fixedly mounted on the top of the rear moving plate 4013. The driving plate 4024, the follower plate 4025 and the fixed pulley 4022 are all arranged symmetrically on the left and right. A pull rope 4023 is wound around the outer side of the fixed pulley 4022. The two ends of the pull rope 4023 are respectively fixedly connected to the driving plate 4024 and the follower plate 4025 on the same side.

[0041] See also Figure 3 , Figure 4 , Figure 5 , Figure 6and Figure 7 A hydraulic cylinder three 4021 is fixedly installed on the front side of the front hanging plate 6, and the output end of the hydraulic cylinder three 4021 slides through the front hanging plate 6 and is fixedly connected to the front moving plate 4013.

[0042] See also Figure 2-Figure 8 A plurality of return springs 4026 are fixedly installed on the rear side of the rear hanging plate 6. The number of return springs 4026 corresponds to the number of the limit rods 4014 and is covered on the outside of the corresponding limit rods 4014. A circular plate 4027 fixedly connected to the limit rod 4014 is fixedly installed at the rear end of the return spring 4026.

[0043] When in use, when the hoisting frame 2013 and the two hoisting plates 6 are set up outside the boom 3 of the work vehicle to be hoisted, the hydraulic cylinder 3 4021 is started, and the output end of the hydraulic cylinder 3 4021 pushes the front moving plate 4013 to move backward, thereby driving the driving plate 4024 to move backward, and then pulling the front end of the pull rope 4023 backward. At the same time, the direction of the backward pulling force is converted into a forward pulling force under the action of the fixed pulley 4022, thereby pulling the follower plate 4025 on the rear side to move forward, thereby driving the rear moving plate 4013 to move forward and causing the circular plate 4027 to compress the return spring 4026, so that the moving plates on the front and rear sides are moved forward. The movable plates 4013 move toward each other synchronously, driving the arc-shaped clamping plates 4011 and the insert rods 4012 on the front and rear sides to move toward each other, so that the front arc-shaped clamping plate 4011 clamps the front hydraulic cylinder 2 303, and the rear arc-shaped clamping plate 4011 clamps the rear hydraulic cylinder 2 303, and at the same time, the front and rear insert rods 4012 are simultaneously inserted into the circular holes on the articulated seat 304, thereby completing the locking installation of the work vehicle boom 3 and forming a multi-point triangular lifting structure for the work vehicle boom 3 (the contact points between the multi-point fixed position arc-shaped clamping plate 4011 and the hydraulic cylinder 2 303 and the contact points between the insert rod 4012 and the articulated seat 304).

[0044] After the locking and installation of the work vehicle boom 3 is completed, the output end of the hydraulic cylinder three 4021 contracts, driving the movable plate 4013 on the front side to move forward, thereby driving the driving plate 4024 to move forward. As the driving plate 4024 moves forward, the pressure on the reset spring 4026 gradually decreases and resets, thereby driving the circular plate 4027 to move backward, and synchronously driving the movable plate 4013 on the rear side to move backward and reset. When the output end of the hydraulic cylinder three 4021 is completely contracted, the two movable plates 4013 are reset. Then, the wire drum 105 is controlled to reel in the wire rope 106, driving the hook 107 to move upward, thereby driving the lifting frame 2013 to move upward, so that the lifting plate 6 moves upward and leaves the outside of the work vehicle boom 3, and then the cyclic production and installation operation is carried out.

[0045] See also Figure 3 , Figure 4 , Figure 5, Figure 6 and Figure 7 The synchronous adjustment mechanism 5 also includes an annular groove 5014 opened on the side of the moving plate 4013 close to the adjustment plate 5012, and a plurality of sliding rods 5013 are fixedly installed on the side of the adjustment plate 5012 close to the moving plate 4013, which are slidably connected to the annular groove 5014 and distributed in a circle.

[0046] See also Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 The driving assembly 502 includes a spline shaft 5021 rotatably mounted between two hanging plates 6, two driving pulleys 5022 are slidingly sleeved on the outer side of the spline shaft 5021, and two rotating shafts 5011 are fixedly sleeved with driven pulleys 5023 at one end away from each other, and the driving pulleys 5022 and the corresponding driven pulleys 5023 are jointly connected with a belt 5024 for transmission, and a reduction motor 5025 whose output shaft is fixedly mounted on the front side of the front hanging plate 6 and is fixedly connected with the spline shaft 5021, and a connecting sleeve 5026 is fixedly mounted on the top of the two movable plates 4013, and the connecting sleeve 5026 is slidingly sleeved on the outer side of the spline shaft 5021, and the diameter of the center hole of the connecting sleeve 5026 is larger than the diameter of the spline shaft 5021, and the connecting sleeve 5026 is rotatably connected to the driving pulley 5022 on the same side.

[0047] During specific use, when the work vehicle boom 3 is moved to the installation position for installation, the reduction motor 5025 is started during the installation process, and the output shaft of the reduction motor 5025 rotates through the spline shaft 5021 to drive the two driving pulleys 5022 to rotate, and the driving pulley 5022 rotates through the belt 5024 to drive the driven pulley 5023 to rotate, thereby driving the two rotating shafts 5011 to rotate, and then driving the two adjustment plates 5012 to rotate, so that the clamped work vehicle boom 3 is rotated slightly, so as to align the work vehicle boom 3 with the installation position, thereby improving the production and installation efficiency of the work vehicle boom 3.

[0048] When the movable plates 4013 on the front and rear sides synchronously approach each other, the two front and rear connecting sleeves 5026 will also synchronously drive the two driving pulleys 5022 to move closer to each other along the spline shaft 5021 to adapt to the movement of the driven pulley 5023.

[0049] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A lifting sling for the production of aerial work vehicle components, characterized in that: include: A sling body (1) and a triangular cone-shaped leveling lifting mechanism (2) fixedly mounted on the bottom of the sling body (1); a triangular multi-point fixing mechanism (4) and a synchronous adjustment mechanism (5) for fixing and adjusting a work vehicle boom (3) are fixedly mounted on the bottom of the triangular cone-shaped leveling lifting mechanism (2); The triangular cone-shaped leveling hoisting mechanism (2) comprises a hoisting component (201) and a leveling component (202); the triangular multi-point fixing mechanism (4) comprises two front-to-back symmetrical multi-point clamping latch components (401) and a pulling component (402) for pulling the multi-point clamping latch components (401); the synchronous adjustment mechanism (5) comprises two front-to-back symmetrical rotation adjustment components (501) and a driving component (502) for driving the rotation adjustment components (501); and two front-to-back symmetrical hoisting plates (6) are fixedly mounted on the bottom of the hoisting component (201); The rotation adjustment component (501) comprises a rotation axis (5011) and an adjustment plate (5012) installed at one end close to the rotation axis (5011) which is symmetrical in front and back. The multi-point clamping latch component (401) comprises a plurality of limit rods (4014) which slide forward and backward and penetrate the hanging plate (6). The rotation axis (5011) is located between the front and rear hanging plates (6). The ends of the plurality of limit rods (4014) close to the rotation axis (5011) are jointly installed with a moving plate (4013). The rotation axis (5011) is rotatably installed on a side of the moving plate (4013) away from the limit rod (4014). The sides close to the front and rear adjustment plates (5012) are both fixedly installed with the insertion rod (4012) and two arc-shaped clamping plates (4011) which are symmetrical in left and right. The pulling assembly (402) drives the movable plates (4013) on the front and rear sides to approach each other, thereby driving the arc-shaped clamping plates (4011) and the inserting rods (4012) on the front and rear sides to clamp and fix the boom (3) of the working vehicle.

2. The hoisting sling for aerial work vehicle component production according to claim 1, characterized in that: The arc-shaped clamping plate (4011) is located above the insertion rod (4012), and the synchronous adjustment mechanism (5) further comprises an annular groove (5014) provided on a side of the movable plate (4013) close to the adjustment plate (5012), and a plurality of sliding rods (5013) slidably connected to the annular groove (5014) and distributed in a circumference are fixedly mounted on a side of the adjustment plate (5012) close to the movable plate (4013).

3. The hoisting sling for aerial work vehicle component production according to claim 1, characterized in that: The driving assembly (502) comprises a spline shaft (5021) rotatably mounted between two hanging plates (6); two driving pulleys (5022) are provided on the sliding sleeve outside the spline shaft (5021); two rotating shafts (5011) are fixedly provided with driven pulleys (5023) at one end away from each other; a belt (5024) is commonly connected to the driving pulleys (5022) and the corresponding driven pulleys (5023); a reduction motor (5025) whose output shaft is fixedly connected to the spline shaft (5021) is fixedly mounted on the front side of the front hanging plate (6); a connecting sleeve (5026) is fixedly mounted on the top of the two moving plates (4013); the connecting sleeve (5026) is slidingly mounted on the outside of the spline shaft (5021); the diameter of the center hole of the connecting sleeve (5026) is larger than the diameter of the spline shaft (5021); and the connecting sleeve (5026) is rotatably connected to the driving pulley (5022) on the same side.

4. The hoisting sling for aerial work vehicle component production according to claim 1, characterized in that: The lifting device body (1) comprises two front-to-back symmetrical cross beams (101), two Y-axis running wheels (102) being installed on the bottom of the two cross beams (101) in a common manner, a lifting platform (104) being installed on the top of the two cross beams (101) via an X-axis running wheel (103), two left-to-right symmetrical steel wire drums (105) being rotatably installed on the top of the lifting platform (104), a plurality of steel wire ropes (106) being wound around the outside of the steel wire drums (105), and a lifting hook (107) being installed on the bottom ends of the plurality of steel wire ropes (106).

5. The hoisting sling for aerial work vehicle component production according to claim 4, characterized in that: The hoisting assembly (201) comprises a mounting plate (2011) fixedly mounted on a hook (107) and four hoisting ropes (2012) fixedly mounted on the bottom of the mounting plate (2011) and distributed in a rectangular shape; a hoisting frame (2013) is commonly mounted at the bottom ends of the four hoisting ropes (2012); a triangular cone shape is formed between the hoisting frame (2013), the hoisting ropes (2012) and the mounting plate (2011); and the hoisting plate (6) is fixedly mounted on the bottom of the hoisting frame (2013).

6. A lifting sling for aerial work vehicle component production according to claim 5, characterized in that: The leveling assembly (202) comprises a hydraulic cylinder (2021) fixedly mounted on the bottom of the mounting plate (211) and a lower pressure plate (2023) fixedly mounted on the output end of the hydraulic cylinder (2021); and an abutment plate (2022) located directly below the lower pressure plate (2023) and cooperating with the lower pressure plate (2023) is fixedly mounted on the hanging frame (2013).

7. The hoisting sling for aerial work vehicle component production according to claim 1, characterized in that: The work vehicle boom (3) comprises a fixed arm (301) and a telescopic arm (302) slidably mounted inside the fixed arm (301) and composed of a plurality of segments; two hydraulic cylinders (303) are fixedly mounted on the top of the telescopic arm (302) and are symmetrical in front and rear; the two hydraulic cylinders (303) respectively drive two segments of the telescopic arm (302); a hydraulic cylinder (4) for driving the rightmost telescopic arm (302) is fixedly mounted inside the fixed arm (301); and a hinge seat (304) is fixedly mounted on the bottom of the fixed arm (301).

8. The hoisting sling for aerial work vehicle component production according to claim 5, characterized in that: The pulling assembly (402) comprises two driving plates (4024) fixedly mounted on the top of the front moving plate (4013) and two fixed pulleys (4022) fixedly mounted on the bottom of the hanging frame (2013); two follower plates (4025) are fixedly mounted on the top of the rear moving plate (4013); the driving plates (4024), the follower plates (4025) and the fixed pulleys (4022) are all arranged symmetrically; a pull rope (4023) is wound around the outside of the fixed pulley (4022); and two ends of the pull rope (4023) are respectively fixedly connected to the driving plate (4024) and the follower plate (4025) on the same side.

9. The hoisting sling for aerial work vehicle component production according to claim 1, characterized in that: A hydraulic cylinder three (4021) is fixedly installed on the front side of the front hanging plate (6), and the output end of the hydraulic cylinder three (4021) slides through the front hanging plate (6) and is fixedly connected to the front moving plate (4013).

10. The hoisting sling for aerial work vehicle component production according to claim 1, characterized in that: A plurality of return springs (4026) are fixedly mounted on the rear side of the rear hanging plate (6). The return springs (4026) correspond in number to the limit rods (4014) and are covered on the outside of the corresponding limit rods (4014). A circular plate (4027) fixedly connected to the limit rods (4014) is fixedly mounted on the rear end of the return spring (4026).

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