High-altitude operation construction vehicle with hoisting and cross arm auxiliary functions

Abstract

A high-altitude operation construction vehicle with hoisting and cross arm assisting functions comprises a crane system, a caterpillar band chassis, a swing mechanism, a telescopic arm, a fly arm, a quick change device, a working platform and a cross arm assisting tool, the swing mechanism is installed on the caterpillar band chassis, the fixed end of the telescopic arm is hinged to the swing mechanism, the crane system is installed on the telescopic arm, and the fly arm is installed on the cross arm assisting tool. The flying arm is installed on the telescopic arm through a conversion device, the flying arm can be converted between a storage state and a working state through the conversion device, the flying arm is fixed to the fixed end of the telescopic arm in the storage state, the flying arm is fixed to the telescopic end of the telescopic arm in the working state, and the working platform is detachably connected with the flying arm through a quick change device. The cross arm auxiliary tool is installed on the working platform. The crane can be used as a crane and can also be connected with the working platform through the fly jib, and the cross arm is mounted through the cross arm auxiliary tool on the working platform, so that the operation intensity and risk of workers are greatly reduced, and the construction cost is reduced.

Description

Technical Field

[0001] The invention relates to the field of aerial work construction vehicles, in particular to an aerial work construction vehicle with hoisting and cross arm auxiliary functions. Background Art

[0002] Distribution transformers, poles, cross arms and hardware are important components in the erection of pole towers. Cross arms are installed on the upper part of the pole tower to support overhead lines. They are an important part of the pole tower. Their function is to install insulators and hardware to support conductors and lightning conductors and keep them at a certain safety distance as required. The full name of distribution transformer is distribution transformer, which is an electrical appliance that transforms AC voltage and current in the distribution system to transmit AC power. Distribution transformers are generally installed on poles. At present, the main way to install cross arms on pole towers is to climb the poles manually or use cranes or aerial work platforms as lifting mechanisms to lift the cross arms to the installation height for installation. However, due to the high installation position of the cross arms, the labor intensity of manual climbing is high and the risk is high. The installation of poles and distribution transformers must be equipped with cranes. Therefore, if only one A crane is not specially designed for installing crossarms, and the crane needs to be additionally equipped with lifting equipment to lift the crossarms. Installation and disassembly are very troublesome, with low work efficiency and high cost. If a crane and an aerial work platform are used, although the safety and efficiency of workers' construction can be greatly improved, the cost of calling two devices is high, which greatly increases the construction cost. In addition, the application environment of existing electric poles is generally in rural areas or remote locations, and for these locations in the south, there are generally many mountains and hills. The ground conditions in these places are mostly muddy, soft soil, steep slopes, ridges and steps, etc. The existing conventional cranes or aerial work platforms have low driving speeds and poor passability. It is very difficult to reach these places, and many places cannot be reached, further increasing the difficulty of erecting and installing distribution transformers and crossarms in these areas. Summary of the invention

[0003] The present invention solves the deficiencies of the prior art and provides an aerial work construction vehicle with lifting and cross-arm auxiliary functions that can be used as a crane and can be connected to a work platform through a flying arm. The installation of the cross-arm is achieved through the cross-arm auxiliary tooling on the work platform, which greatly reduces the work intensity and risk of workers and reduces the construction cost.

[0004] To achieve the above-mentioned purpose, the present invention first proposes an aerial work construction vehicle with hoisting and cross-arm auxiliary functions, including a crane system, a crawler chassis, a slewing mechanism, a telescopic arm, a flying arm, a quick-change device, a working platform and a cross-arm auxiliary tooling. The crawler chassis is equipped with a slewing mechanism, the fixed end of the telescopic arm is hinged on the slewing mechanism, and the telescopic arm is equipped with a crane system.

[0005] The flying arm is installed on the telescopic arm through a conversion device, and the flying arm can be converted between a storage state and a working state through the conversion device. When the flying arm is in the storage state, it is fixed on the fixed end of the telescopic arm. When it is in the working state, the flying arm is fixed on the telescopic end of the telescopic arm. The working platform is detachably connected to the flying arm through a quick-change device, and the cross-arm auxiliary tooling is installed on the working platform. The cross-arm auxiliary tooling includes a linear moving mechanism and a slide rail. The linear moving mechanism is installed on the working platform in a vertical direction. The movable end of the linear moving mechanism is arranged on the outside of the working platform and moves in a vertical direction. Two horizontally arranged slide rails are installed on the movable end of the linear moving mechanism. The two slide rails are arranged parallel to each other. The spacing between the two slide rails is greater than the outer diameter of the pole, and a sliding member for supporting the cross arm is slidably installed on each slide rail.

[0006] By adopting the above structure, the present invention enables the flying arm to be converted between a storage state and a working state through a conversion device. When the flying arm is in the storage state, the whole machine is in a hoisting state, and the hoisting and installation of distribution network equipment such as poles and distribution transformers can be realized; when the flying arm is in the working state, the whole machine is in a cross-arm installation state, and the working platform is detachably connected to the flying arm through a quick-change device. During the construction process, the telescopic arm is used to lift the working platform, so that the working platform can reach a high place; the flying arm can maintain the level of the working platform during the lifting and working process, and the cross-arm auxiliary tooling on the working platform can be used The action of putting the cross arm on the pole, and during the whole installation process of the cross arm, the construction workers only need to stand on the working platform to operate, which greatly improves the safety of the construction; during the installation of the cross arm, the cross arm can be placed flat on the sliding part of the slide rail, and then the linear moving mechanism and the slide rail are used to successively complete the actions of lifting the cross arm over the top of the pole, pushing it to the pole, and lowering it to the installation position of the pole. These actions are completed mechanically without manual lifting, which reduces the work intensity of workers, and at the same time improves the stability of the cross arm installation, minimizing the occurrence of accidents;

[0007] At the same time, the whole vehicle of the present invention is equipped with a crawler chassis, which greatly improves the obstacle crossing performance of the whole vehicle and ensures its pass rate in mountainous and hilly terrains such as muddy, soft soil, steep slopes, ridges and steps. The working platform can be quickly installed on the flying arm or quickly separated from the flying arm through a quick-change device, so that according to the actual construction situation, it can be selected whether to connect the working platform to the whole vehicle first and then drive to the construction area, or not to connect the working platform first. In this way, the obstacle crossing performance of the whole vehicle will be higher. After reaching the construction area later, the telescopic arm and the flying arm are used to connect to the working platform, thereby improving the controllability of the entire construction and improving the construction efficiency.

[0008] In the above embodiment, the sliding member includes two limit blocks, the spacing between the two limit blocks matches the spacing between the two cross beams on the cross arm, the top of the limit block extends out of the slide rail in the vertical direction to form a clamping end for connecting to the cross arm, and a clamping groove is provided on the clamping end of the limit block, and the width of the clamping groove matches the thickness of the wing plate at the bottom of the cross arm beam.

[0009] Since the crossbeams of the crossarm are generally made of L-shaped steel or I-shaped steel, when the crossarm is placed on the limit blocks, the wing plates at the bottom of the two crossbeams of the crossarm are respectively clamped in the slots of the four limit blocks, thereby stably supporting the crossarm horizontally on the slide rail. In this way, the crossarm can be moved in the vertical direction through the linear moving mechanism, so that the crossarm can be lowered from the top of the pole to the pole installation position, and the crossarm can realize horizontal movement along the slide rail through the limit blocks, thereby facilitating the adjustment of the distance between the crossarm and the pole, and further facilitating the installation of the crossarm.

[0010] As a first embodiment of the linear motion mechanism, the linear motion mechanism includes an upper slider group, a connecting frame, a guide rail, a lower slider group, a connecting rod and a worm gear lifter. A hollow area for installing a cross arm auxiliary tooling is provided on the front railing of the working platform to form an installation area. Two guide rails are fixed on both sides of the installation area of ​​the working platform in the vertical direction. The worm gear lifter is installed at the bottom of the installation area. An upper slider group and a lower slider group are slidably installed on the guide rails. The upper slider group is arranged above the lower slider group. A connecting frame and a stop rod are arranged between the two guide rails. The two upper slider groups are connected by the connecting frame to achieve linkage, and the two lower slider groups are connected by the stop rod to achieve linkage. The worm gear lifter is provided with two movable ends with opposite movement directions. The two movable ends of the worm gear lifter are respectively fixedly connected to the connecting frame and the stop rod. Two cross arm seats are respectively hinged on the two upper slider groups. The spacing between the two cross arm seats is greater than the outer diameter of the pole. The slide rail is fixed on the cross arm seat. One end of the connecting rod is hinged on the lower slider group and the other end is hinged below the cross arm seat.

[0011] By adopting the above structure, the upper slider group and the lower slider group can be synchronously approached and moved away from each other through the operation of the worm gear elevator, thereby realizing the conversion of the cross arm seat between the expanded state and the stored state. In the expanded state, the two connecting frames are away from each other and the distance between them is the largest. At this time, the cross arm seat is horizontally arranged. In the stored state, the two connecting frames are close to each other and the distance between them is the smallest, and the cross arm seat is vertically arranged. In this way, when the flying arm lifts the working platform, the slide rail can be folded and stored to prevent interference with other equipment during the lifting process. During installation, the slide rail can be unfolded again, which further improves the reliability of construction.

[0012] As a second embodiment of the linear motion mechanism, the linear motion mechanism includes an upper slider group, a connecting frame, a guide rail, a lower slider group, a connecting rod and a worm gear lift. A hollow area for installing a cross arm auxiliary tooling is provided on the front railing of the working platform to form an installation area. Two guide rails are fixed on both sides of the installation area of ​​the working platform in the vertical direction. The worm gear lift is installed at the bottom of the installation area. An upper slider group and a lower slider group are slidably installed on the guide rail. The upper slider group is arranged above the lower slider group. A connecting frame and a stop rod are arranged between the two guide rails. The two upper slider groups are connected through the connecting frame to achieve linkage. The two lower slider groups are connected through the stop rod to achieve linkage. Two cross arm seats are respectively hinged on the two upper slider groups. The distance between the two cross arm seats is greater than the outer diameter of the pole. The slide rail is fixed on the cross arm seat. One end of the connecting rod The worm gear lift comprises a worm gear transmission mechanism and a lead screw, the lead screw is arranged between the two guide rails in a vertical direction, the worm gear transmission mechanism is fixed to the bottom of the installation area, the lead screw is driven to rotate by the worm gear transmission mechanism, the worm gear transmission mechanism is driven by a motor or by a rotating handle, the lead screw is threadedly connected with a first nut and a second nut to form two movable ends, the second nut is fixed on the connecting frame, the first nut and the stop rod are detachably connected, a plurality of second limiting holes are arranged on both sides of the installation area and along the length direction of the guide rail, the lower slider group is provided with a second pin hole matching the limiting hole, and the lower slider group realizes locking of the position of the lower slider group on the guide rail by means of an indexing pin inserted in the second limiting hole and the second pin hole.

[0013] In the above embodiment, the first nut is provided with a first pin hole, and the stop rod is provided with a first limiting hole matching the first nut. The first nut realizes linkage with the stop rod by means of a pin inserted in the first pin hole and the first limiting hole.

[0014] With the above structure, when the height of the slide rail needs to be moved as a whole, the limit indexing pin is pulled out, and the first nut is connected and fixed to the stop rod through the latch pin. At this time, the worm gear transmission mechanism is driven, and the connecting frame and the stop rod move upward or downward at the same time. Compared with the previous embodiment, the overall height of the slide rail is adjustable, which further increases the range of height adjustment of the cross arm during installation, and improves the adaptability and accuracy of installation.

[0015] At the same time, this embodiment can also realize the expansion or storage of the slide rail. It only needs to fix the lower sliding block group on both sides of the installation area through the limit indexing pins, and pull out the pin between the first nut and the stop rod. Under the drive of the worm gear elevator, only the connecting frame moves up or down, and the stop rod does not move, and the slide rail can also be expanded or stored.

[0016] In this embodiment, the telescopic arm includes a basic arm and a plurality of arm sections mounted on the basic arm and slidingly sleeved together. The conversion device includes connecting ear seats mounted on both sides of the endmost arm section and a supporting locking frame mounted on the basic arm and close to one end of the arm section for supporting the flying arm. The flying arm is detachably connected to the endmost arm section through a connecting bracket, so that the flying arm has a working state and a storage state.

[0017] When in working state, the two sides of the connecting bracket are detachably hinged to the connecting ear seats on both sides of the last arm section.

[0018] When in the storage state, first remove the connecting ear seat and the connecting bracket on one side, rotate the connecting bracket around the hinge point on the other side, and rotate and fold the flying arm to a state close to the basic arm and parallel to the basic arm. At this time, the flying arm is placed above the supporting locking frame, and the flying arm is supported by the supporting locking frame. The flying arm is fixed on the supporting locking frame, and then the connecting ear seat and the connecting bracket on the other side are removed. The flying arm is completely separated from the end arm section, and the flying arm is fixed on the basic arm of the telescopic arm.

[0019] Furthermore, the connecting ear seat is a double-ear seat, and the connecting bracket includes a flying arm connecting frame and a telescopic arm connecting plate connected to the flying arm connecting frame as a whole. The flying arm is hinged on the flying arm connecting frame, and two telescopic arm connecting plates form a group. The two groups of telescopic arm connecting plates are symmetrically fixed on both sides of the flying arm connecting frame. One end of the telescopic arm connecting plate extends out of the flying arm connecting frame to form a single ear plate for connecting with the two ear seats of the connecting ear seat, and the two single ear plates on the same group of telescopic arm connecting plates form a group, and a group of single ear plates respectively matches the positions of the two ear seats on the connecting ear seat, and the spacing between the two groups of single ear plates matches the spacing of the connecting ear seats on both sides of the most terminal arm section.

[0020] When the flying boom is in working state, two sets of single ear plates on the connecting bracket are respectively hinged with two ear seats of the connecting ear seats on both sides of the last boom section through locking shafts, so that the flying boom is connected with the telescopic boom, and the telescopic boom is used to realize the telescopic movement of the flying boom;

[0021] When the flying boom is in the storage state, one set of single ear plates and the locking shafts on the connecting ear seat are removed, so that the connecting bracket can rotate around the locking shafts on the other set of single ear plates, and the flying boom is pushed to rotate around the locking shaft on this side until it is parallel to the basic arm, so that the flying boom is placed above the supporting locking frame, and the flying boom is supported by the supporting locking frame. Fixing bolt holes are provided on the connecting sides of the flying boom and the supporting locking frame corresponding to each other, and the relative positions of the flying boom and the supporting locking frame are fixed by bolts installed in the fixing bolt holes, and then the other set of single ear plates and the locking shafts on the connecting ear seat are removed, so that the flying boom is fixed on the basic arm, and the flying boom is completely separated from the last arm section.

[0022] In this embodiment, the crane system includes a pulley block, a hook, a wire rope and a hydraulic winch. The hook is installed on the movable pulley of the pulley block, the fixed pulley of the pulley block is installed on the end arm section, and the hydraulic winch is installed on the end of the basic arm away from the hook. The wire rope connects the hydraulic winch to the pulley block, and the hydraulic winch realizes the lifting and lowering of the hook by the forward and reverse rotation of the wire rope.

[0023] In this embodiment, the crawler chassis includes hydraulic legs and a chassis lower body, and four hydraulic legs are symmetrically installed on the front and rear sides of the chassis lower body. The chassis lower body includes crawlers, a frame, a driving wheel, a plurality of crawler wheels, a rocker arm suspension, a supporting wheel, a tensioning cylinder, a tensioning wheel and a buffer. Two groups of rocker arm suspensions are symmetrically hinged at the positions on the two outer sides of the frame and near the middle. The two groups of rocker arm suspensions on the same side are at the same horizontal height and are symmetrically arranged with the length center of the frame as the symmetry axis. Supporting wheels are also installed on the frame and between the two groups of rocker arm suspensions on the same side. Each group of rocker arm suspensions is installed with a Two track wheels, the front and rear ends of the two outer sides of the frame are symmetrically equipped with driving wheels and tensioning wheels respectively, the rotating shaft of the tensioning wheel is hinged to the frame through a swing arm, the cylinder end of the tensioning cylinder is fixed to the frame, and the piston rod end is hinged to the tensioning wheel swing arm, and the tensioning wheel swing arm is swung by the extension and contraction of the tensioning cylinder to tension the track; the driving wheel, track wheel, supporting wheel and tensioning wheel on the same side are equipped with tracks, and the tracks are driven to rotate by the driving wheel, and the driving wheel is driven by a hydraulic system, and the tensioning cylinder is connected to the hydraulic system through a buffer, and the hydraulic system is powered by a power system.

[0024] In this embodiment, the middle part of the rocker arm suspension is hinged on the frame through a rotating shaft. The rocker arm suspension is symmetrically installed with two track wheels around the rotating shaft. The two track wheels and the rotating shaft form a tripod structure. The track wheels swing around the rotating shaft through the rocker arm suspension.

[0025] With the above structure, the middle part of the rocker suspension is hinged on the two outer sides of the frame through a rotating shaft, and the rocker suspension is symmetrically equipped with two track wheels with the rotating shaft as the center, so that the two track wheels and the rotating shaft form a tripod structure, and the track wheels swing around the rotating shaft through the rocker suspension. On the one hand, since the track wheels installed on the rocker suspension are placed on the two outer sides of the frame, the crawler tracks finally formed are also located on the outer sides of the frame, so that the frame will not limit the size of the track wheels. By assembling large-diameter track wheels and adopting the form of rocker suspension, the purpose of adaptively adapting to complex road conditions such as ups and downs and increasing the passability is achieved. On the other hand, the frame is placed in the crawler tracks as a load-bearing frame, and then connected to the sub-frame. The sub-frame is used to install the unit equipment, which is also convenient for subsequent disassembly and maintenance. In addition, by equipping with hydraulic outriggers, when the whole machine arrives at the construction position, the whole machine is in place, and the entire walking chassis can be propped up by unfolding the hydraulic outriggers to keep the whole vehicle level, thereby improving the stability of the whole vehicle during the construction process.

[0026] The buffer is used to store the impact energy of the tensioning cylinder and play a buffering role to increase the service life of the chassis. The track is driven to rotate by the driving wheel, and the driving wheel is driven by the hydraulic system, and the hydraulic system is powered by the power system.

[0027] When the whole machine arrives at the construction site, the whole machine is in place, the hydraulic legs are unfolded, the entire crawler chassis is propped up, and the whole vehicle is kept level, thereby improving the stability of the whole vehicle during the construction process.

[0028] In this embodiment, a sub-frame is fixed above the frame, and a second inclination sensor and a leg articulated seat are installed on the sub-frame. A leg articulated seat is arranged on each of the four corners of the sub-frame. The hydraulic leg comprises a swivel seat, a travel switch, a leg, a leg cylinder, a support seat and a pressure sensor. The swivel seat is rotatably connected to the sub-frame through a pin shaft vertically installed on the sub-frame, one end of the leg is hinged to the lower end of the swivel seat through a horizontally arranged tenth axis, and the other end of the leg is hinged to the support seat through an eleventh axis. One end of the leg cylinder is hinged to the upper end of the swivel seat, and the other end is rotatably installed on the eleventh axis. The leg is hinged to the leg articulated seat of the sub-frame through the swivel seat. A travel switch for detecting the rotation of the leg to a limit angle in a supporting state is also installed on the swivel seat. A pressure sensor for detecting the pressure in the leg cylinder is also installed on the leg cylinder. The second inclination sensor, the pressure sensor and the travel switch are all connected to the control system.

[0029] When in use, the construction workers first push the hydraulic outrigger, and the hydraulic outrigger rotates to the working position along the horizontal plane on the outrigger articulated seat, then lock the horizontal position of the hydraulic outrigger, and then start the outrigger cylinder to drive the outrigger and the support seat to flip downward. The four hydraulic outriggers are uniformly controlled by the hydraulic system and the automatic leveling system. The control system controls the extension and retraction amount of each outrigger cylinder to level the subframe according to the inclination signal feedback from the second inclination sensor and the feedback signal from the pressure sensor of the outrigger cylinder. At this time, the pressure sensor of each outrigger feeds back a pressure difference signal, and at the same time lifts the chassis off the ground. Specifically: when the outrigger flips downward with the outrigger cylinder until it collides with the travel switch, this is the maximum height that the chassis can be lifted to in the leveling state. The second inclination sensor is a dual-axis type, which can detect the inclination angle of the vehicle body in the X and Y axis directions, and adjust the extension and retraction amount of the corresponding outrigger cylinder according to the feedback value, driving the hydraulic outrigger on that side of the vehicle body to lift until the vehicle body is in a horizontal state. During this process, if the pressure sensor of each outrigger feeds back a normal signal, the leveling of the whole vehicle is completed; during the leveling process, if the outrigger feedback pressure difference signal is abnormal, it means that the outrigger has not touched the ground or the ground where the outrigger is located has settled, until the outrigger cylinder reaches the maximum stroke, the leveling fails, and the ground where the outrigger is located needs to be manually leveled and compacted.

[0030] After the whole machine is leveled, the telescopic arm is lifted and the luffing is rotated to the required position, and then the telescopic arm is luffed at a negative angle and extended and retracted. At the same time, the flying arm is luffed until the working platform touches the ground and stops moving. Then the crossarm is placed on the crossarm auxiliary tooling, and the mounting hardware is placed on the working platform. When everything is ready, the telescopic arm is lifted and the flying arm is fine-tuned so that the crossarm auxiliary tooling is in the working position. Then the whole machine is locked and the operation of placing the crossarm on the pole begins.

[0031] In this embodiment, a slewing mechanism is also installed on the sub-frame, and the slewing mechanism includes a turntable, a slewing bearing and a variable-length cylinder arm. The fixed end of the slewing bearing is fixed to the sub-frame, and a turntable is installed on the movable end of the slewing bearing. The fixed end of the telescopic arm is hinged on the turntable, one end of the variable-length cylinder arm is hinged on the turntable, and the other end is hinged to the middle part of the telescopic arm.

[0032] In this embodiment, a hydraulic system, a power system and an electronic control system are also installed on the sub-frame, and a hood for protecting the power system is installed outside the power system.

[0033] In the above embodiment, the working platform includes an operating box, casters, a first inclination sensor, a working bucket and a radar. A controller is provided in the operating box, and the controller is used to control the movement of the flying arm. The casters are installed at the bottom of the working bucket for supporting and moving the working bucket on the road surface. Railings are provided around the working bucket. One side of the working bucket is an installation area connected to the crossarm auxiliary tooling, and the other side is a connection area connected to the quick-change device. The first inclination sensor is installed on the working bucket for detecting the inclination value of the working platform. Multiple radars for platform obstacle avoidance are installed around the working bucket. The radar and the first inclination sensor are connected to the controller. The controller receives feedback signals from the radar and the first inclination sensor to control the flying arm to achieve automatic leveling of the working platform.

[0034] By adopting the above structure, the operating box on the working platform can be used as a control center, and the construction personnel can control the descent or lifting of the flying arm on the working platform. At the same time, by using the radar and the first inclination sensor on the working platform and the existing technology, the automatic leveling of the working platform can be achieved. Through the monitoring and alarm of the radar, the collision between the working platform and other equipment during the lifting process can also be reduced.

[0035] In the above embodiment, the quick-change device includes a quick-change frame, a swing cylinder, a quick-change fixing frame, a fourth axis, a quick-change connecting rod and a connecting shaft. The fixed end of the swing cylinder is installed on the quick-change frame, and the movable end is fixedly connected to the quick-change fixing frame. The swing cylinder drives the quick-change fixing frame to swing horizontally. A vertically arranged mounting column is provided on the connecting area of ​​the working platform. The quick-change fixing frame is installed on the mounting column of the working platform. The quick-change frame includes two parallel support plates. A horizontally arranged force transmission shaft for connecting to the flying arm is fixed between the two support plates and on the top thereof. The flying arm is connected to the force transmission shaft through a connecting device.

[0036] With the above structure, the swing cylinder in the quick-change device can realize the horizontal swing of the working platform, which increases the dimension of the working platform's movement, improves its adaptability to the environment, and achieves more obstacle avoidance angles.

[0037] A weighing device is also installed between the quick-change device and the working platform, and the weighing device includes a push rod, a force sensor and a quick-change connecting rod. Two quick-change connecting rods are hinged on both sides of the quick-change fixing frame through a fourth axis, and the two sides of the quick-change fixing frame are hinged to the two sides of the working platform mounting column through the two quick-change connecting rods. A certain distance is provided between the quick-change fixing frame and the mounting column of the working platform. The quick-change fixing frame, the two quick-change connecting rods and the mounting column of the working platform form a parallelogram mechanism. A force sensor is fixed on one side of the quick-change fixing frame, and a horizontally arranged top plate is fixed on the mounting column of the working platform, correspondingly above the force sensor. A vertically arranged push rod is provided on the detection end of the force sensor. When in working state, the top of the push rod abuts against the bottom of the top plate.

[0038] With the above structure, in the initial state, the working platform is placed on the ground, and the quick-change fixing frame moves downward around the quick-change connecting rod relative to the mounting column under the action of its own weight, and the push rod does not contact the top plate, so there is no need to weigh. In the working state, the quick-change device is lifted, and the quick-change fixing frame moves upward relative to the mounting column. At this time, the push rod contacts the top plate and weighing begins. By utilizing the parallelogram mechanism, the load applied to the top rod by the working platform and the load thereon through the top plate is always a vertical force, which is the real load of the working platform, so that the platform can be accurately weighed. The force sensor is connected to the controller, and the flying arm movement is controlled by the controller. The total weight of the working platform is calculated by the weighing device to ensure that the total load is within a limited range. When overloaded, the lifting is stopped to prevent accidents caused by overload.

[0039] The cam is an assembly made of two members, each of which has a first end, a second end, and a second end, and the cam is connected to the second support frame by a pair of parallel rods, the second end of the second end being connected to the support frame by a pair of parallel rods.

[0040] The connecting device is a device used in conjunction with the quick-change device to achieve quick connection. The quick connection and disassembly of the connecting device and the quick-change device can be completed by installing and removing the safety pin, thereby achieving quick connection and disassembly of the flying arm and the working platform.

[0041] In the above embodiment, an L-shaped plate is fixed on the outer side of the second connecting plate, and the guide shaft is fixed between the L-shaped plate and the second connecting plate. The L-shaped plate and the second connecting plate are correspondingly provided with axial holes matching the size of the guide shaft, and both ends of the guide shaft pass through the axial holes and are limited by stop pins.

[0042] The above embodiment further comprises a flying arm, which comprises a connecting bracket, a leveling cylinder, a luffing arm, a flying arm luffing cylinder, a connecting rod mechanism and a connecting device.

[0043] The connecting bracket is used to connect with the telescopic end of the telescopic arm. The upper end of the connecting bracket is hinged with a luffing arm, and the lower end is hinged with a flying arm luffing cylinder. The other end of the flying arm luffing cylinder is hinged with the other end of the luffing arm. The luffing arm realizes luffing movement through the extension and retraction of the flying arm luffing cylinder.

[0044] The connecting rod mechanism includes an inner connecting rod and an outer connecting rod, one end of the inner connecting rod and the outer connecting rod are hinged through a seventh axis, the other end of the inner connecting rod is hinged to the variable amplitude arm, the other end of the outer connecting rod is hinged to the middle part of the first connecting plate of the connecting device connecting frame, the end of the first connecting plate is hinged to the variable amplitude arm, one end of the leveling cylinder is hinged to the variable amplitude arm, and the other end is rotatably connected to the seventh axis of the connecting rod mechanism, the extension and retraction of the leveling cylinder drives the inner connecting rod of the connecting rod mechanism to move, and the inner connecting rod drives the connecting device to rotate around the hinge axis with the variable amplitude arm through the outer connecting rod, so as to realize the up and down swing of the connecting device.

[0045] By adopting the above structure, on the one hand, the up and down swinging of the connecting device can be controlled through the flying arm. When the working platform is placed on the ground, the up and down swinging of the connecting device can realize rapid docking with the quick-change device. On the other hand, the extension and retraction of the flying arm boom cylinder on the flying arm can also realize the boom boom movement, further improving the control accuracy of the working platform.

[0046] With the above structure, the device has the following advantages:

[0047] (1) The present invention uses a conversion device to enable the flying arm to be converted between a storage state and a working state. When the flying arm is in the storage state, the whole machine is in a hoisting state, and the hoisting and installation of distribution network equipment such as poles and distribution transformers can be realized. When the flying arm is in the working state, the whole machine is in a cross-arm installation state. At this time, the working platform is detachably connected to the flying arm through a quick-change device. During the construction process, the telescopic arm is used to lift the working platform so that the working platform can reach a high place; the flying arm can maintain the level of the working platform during the lifting and working process, and the cross-arm auxiliary tooling on the working platform can be used to move the cross-arm to the horizontal position. The action of putting the crossarm onto the pole, and during the entire installation process of the crossarm, the construction workers only need to stand on the work platform to operate, which greatly improves the safety of construction; during the installation of the crossarm, the crossarm can be placed flat on the sliding part of the slide rail, and then the linear moving mechanism and the slide rail are used to cooperate to sequentially complete the actions of lifting the crossarm over the top of the pole, pushing it toward the pole, and lowering it to the installation position of the pole. These actions are all completed mechanically without manual lifting, which reduces the work intensity of workers, while also improving the stability of the crossarm installation and minimizing the occurrence of accidents.

[0048] (2) The vehicle of the present invention is equipped with a crawler chassis, which greatly improves the obstacle crossing performance of the vehicle and ensures its pass rate in mountainous and hilly terrains such as muddy, soft soil, steep slopes, and ridges and steps. The working platform can be quickly installed on the flying arm or quickly separated from the flying arm through a quick-change device, so that according to the actual construction situation, it can be selected whether to connect the working platform to the vehicle first and then drive to the construction area, or not to connect the working platform first. In this way, the obstacle crossing performance of the vehicle will be higher. After reaching the construction area, the telescopic arm and flying arm can be used to connect to the working platform, thereby improving the controllability of the entire construction and improving the construction efficiency.

[0049] (3) The operating box on the working platform can be used as a control center. Construction personnel can control the descent or lift of the flying arm on the working platform. At the same time, by using the radar and the first inclination sensor on the working platform and the existing technology, the automatic leveling of the working platform can be achieved. Through radar monitoring and alarm, the collision between the working platform and other equipment during the lifting process can also be reduced.

[0050] (4) The swing cylinder in the quick-change device can realize the horizontal swing of the working platform, which increases the dimension of the working platform's movement, improves its adaptability to the environment, and can achieve more obstacle avoidance angles.

[0051] (5) The connecting device is a device used in conjunction with the quick-change device to achieve quick connection. The quick connection and disassembly of the connecting device and the quick-change device can be completed by installing and removing the safety pin, thereby achieving quick connection and disassembly of the flying arm and the working platform.

[0052] (6) On the one hand, the flying arm can be used to control the up and down swinging of the connecting device. When the working platform is placed on the ground, the up and down swinging of the connecting device can realize the rapid docking with the quick-change device. On the other hand, the extension and retraction of the flying arm boom cylinder on the flying arm can also realize the boom boom movement, further improving the control accuracy of the working platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 It is a structural schematic diagram of the present invention.

[0054] Figure 2 It is a schematic structural diagram of the crawler chassis of the present invention.

[0055] Figure 3 It is a schematic diagram of the internal structure of the chassis undercarriage of the present invention.

[0056] Figure 4 It is a schematic structural diagram of the auxiliary frame of the present invention.

[0057] Figure 5 It is a structural schematic diagram of the rocker arm suspension of the present invention.

[0058] Figure 6 It is a schematic diagram of the structure of the buffer of the present invention.

[0059] Figure 7 It is a structural schematic diagram of the hydraulic outrigger of the present invention.

[0060] Figure 8 It is a three-dimensional diagram of the hydraulic outrigger of the present invention.

[0061] Fig. 9 It is a structural schematic diagram of the connection between the flying arm and the telescopic arm of the present invention.

[0062] Fig.10 It is a structural schematic diagram of the telescopic arm of the present invention.

[0063] Fig.11 It is a schematic structural diagram of the connecting bracket of the present invention.

[0064] Fig.12 It is a structural schematic diagram of the flying arm of the present invention.

[0065] Fig.13It is a structural schematic diagram of the connection state of the flying arm and the working platform of the present invention.

[0066] Fig.14 It is a structural schematic diagram of the connecting rod mechanism of the present invention.

[0067] Fig.15 It is a schematic structural diagram of the connecting device of the present invention.

[0068] Fig.16 It is a structural schematic diagram of the quick-change device of the present invention.

[0069] Fig.17 This is a state diagram of the connection device and the quick-change device of the present invention when they are ready to be connected.

[0070] Fig.18 It is an exploded view of the connection frame of the present invention when it is connected to the quick-change frame.

[0071] Fig.19 It is a structural schematic diagram of the working platform of the present invention.

[0072] Fig. 20 It is a structural schematic diagram of the cross arm auxiliary tooling of the present invention.

[0073] Fig.21 It is a schematic structural diagram of the worm gear elevator of the present invention.

[0074] Fig. 22 It is a state diagram of the cross arm auxiliary tooling of the present invention in the stored state and the unfolded state.

[0075] Fig.23 It is a schematic diagram of the working platform of the present invention in working state.

[0076] Fig.24 It is a structural schematic diagram of the present invention in a hoisting state.

[0077] Fig.25 It is a schematic diagram of the action adjustment from the initial state to the working state of the present invention.

[0078] In the accompanying drawings, 1, flying arm; 11, connecting bracket; 111, telescopic arm connecting plate; 112, flying arm connecting plate; 113, locking shaft; 12, first shaft; 13, second shaft; 14, leveling cylinder; 15, luffing arm; 16, flying arm luffing cylinder; 17, third shaft; 18, connecting rod mechanism; 181, inner connecting rod; 182, seventh shaft; 183, outer connecting rod; 184, eighth shaft; 185, ninth shaft; 19, connecting device; 191, connecting frame; 192, guide shaft; 193, stop pin; 194, safety latch; 195, first connecting plate; 196, second connecting plate; 197, L-shaped plate; 2, quick-changing device; 21, quick-changing frame; 211, force transmission shaft; 212, support plate; 213, guide groove; 22. Swing cylinder; 23. Quick-change fixing bracket; 24. Fourth axis; 25. Quick-change connecting rod; 26. Push rod; 27. Force sensor; 28. Connecting shaft; 29. ​​Top plate; 3. Working platform; 31. Operation box; 32. Casters; 33. First inclination sensor; 34. Working bucket; 35. Radar; 36. Installation area; 37. Second limit hole; 4. Cross arm auxiliary tooling; 41. Upper slider group; 42. Connecting rod; 43. Guide rail; 44. Lower slider group; 45. Stop rod; 46. Latch; 47. Worm gear lifter; 471. Worm gear transmission mechanism; 472. First nut; 473. Screw rod; 474. Second nut; 48. Indexing pin; 49. Fifth axis; 410. Connecting rod; 411. Sixth axis ;412, limit block;413, slide rail;414, cross arm seat;415, slot;5, conversion device;51, connecting ear seat;52, support locking frame;6, crawler chassis;61, hydraulic outrigger;611, swivel seat;612, travel switch;613, tenth axis;614, outrigger;615, outrigger cylinder;616, eleventh axis;617, support seat;618, pressure sensor;62, second inclination sensor;63, hydraulic system;64, hood;65, subframe;651, outrigger articulated seat;6511, outrigger limit shaft;6512, outrigger swivel shaft;6513, sensor element;652, engine connection seat;653, cargo box;66, power system;67, electronic control system;68 , chassis lower installation; 681, crawler track; 682, frame; 683, driving wheel; 684, crawler wheel; 685, rocker arm suspension; 6851, rocker arm rotating shaft; 686, supporting wheel; 687, tensioning cylinder; 688, tensioning wheel; 689, buffer; 6891, accumulator; 6892, throttle valve; 6893, valve block; 6894, joint; 6895, pressure gauge; 7, slewing mechanism; 71, turntable; 72, twelfth axis; 73, thirteenth axis; 74, slewing bearing; 75, variable-length cylinder arm; 8, telescopic arm; 81, pulley block; 82, hook; 83, reel; 84, wire rope; 85, hose reel; 86, hydraulic winch; 87, the last arm section; 9, cross arm; 10, electric pole. DETAILED DESCRIPTION

[0079] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0080] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0081] like Figures 1 to 25 As shown: an aerial construction vehicle with lifting and cross arm auxiliary functions, including a crane system, a crawler chassis 6, a slewing mechanism 7, a telescopic arm 8, a flying arm 1, a quick change device 2, a working platform 3 and a cross arm auxiliary tooling 4.

[0082] like Figure 1 As shown, a slewing mechanism 7 is installed on the crawler chassis 6, a fixed end of a telescopic arm 8 is hinged on the slewing mechanism 7, a crane system is installed on the telescopic arm 8, and the flying arm 1 is installed on the telescopic arm 8 through a conversion device. The flying arm 1 can be converted between a storage state and a working state through the conversion device. When the flying arm 1 is in the storage state, the whole machine is in a hoisting state and is fixed on the fixed end of the telescopic arm 8. When it is in the working state, the whole machine is in a cross arm installation state, and the flying arm 1 is fixed on the telescopic end of the telescopic arm 8.

[0083] The cross arm auxiliary tooling 4 is installed on the working platform 3. When the whole machine is in the cross arm installation state, the working platform 3 is detachably connected to the flying arm 1 through the quick change device 2. The quick change device 2 is connected to the working platform 3 through a swing cylinder 22 that swings in the horizontal direction. The swing cylinder 22 can drive the working platform 3 to swing;

[0084] like Figures 9 to 11 As shown, the telescopic arm 8 includes a basic arm and a plurality of arm sections mounted on the basic arm and slidingly sleeved together, the outermost arm section is the end arm section 87, the conversion device includes connecting ear seats 51 mounted on both sides of the end arm section 87 and a supporting locking frame 52 mounted on the basic arm and close to one end of the arm section for supporting the flying arm, the flying arm 1 is detachably connected to the end arm section 87 through a connecting bracket 11, so that the flying arm has a working state and a storage state.

[0085] In the working state, the two sides of the connecting bracket 11 are detachably hinged to the connecting ear seats 51 on both sides of the end arm section 87.

[0086] When in the storage state, the connecting ear seat 51 on one side and the connecting bracket 11 are disassembled, and the connecting bracket 11 rotates around the hinge point on the other side, and the flying arm 1 is rotated and folded to a state close to the basic arm and parallel to the basic arm. At this time, the flying arm 1 is placed above the supporting locking frame 52, and the flying arm 1 is supported by the supporting locking frame 52. The connecting sides of the flying arm 1 and the supporting locking frame 52 are provided with fixing bolt holes corresponding to each other. The flying arm 1 can be fixed to the supporting locking frame 52 by bolts installed in the fixing bolt holes, and then the connecting ear seat 51 and the connecting bracket 11 on the other side are removed, and the flying arm 1 is completely separated from the end arm section 87;

[0087] Specifically: the connecting ear seat 51 is a double-ear seat, the connecting bracket 11 includes a flying boom connecting frame 112 and a telescopic boom connecting plate 111 connected to the flying boom connecting frame 112 as a whole, the flying boom connecting frame 112 is installed with a first shaft 12, two telescopic boom connecting plates 111 form a group, and the two groups of telescopic boom connecting plates 111 are symmetrically fixed on both sides of the flying boom connecting frame 112, one end of the telescopic arm connecting plate 111 extends out of the flying boom connecting frame to form a single ear plate for connecting to the connecting ear seat 51, and the two single ear plates on the same group of telescopic arm connecting plates 111 form a group, and a group of single ear plates respectively matches the positions of the two ear seats on the connecting ear seat 51, and the spacing between the two groups of single ear plates matches the spacing of the connecting ear seats 51 on both sides of the most terminal boom section 87.

[0088] When the flying boom is in working state, the two sets of single ear plates on the connecting bracket 11 are respectively hinged with the two ear seats of the connecting ear seats 51 on both sides of the end boom section 87 through the locking shaft 113, so as to realize the connection between the flying boom 1 and the telescopic boom 8, and realize the telescopic movement of the flying boom 1 through the telescopic boom 8;

[0089] When the flying arm is in the storage state, remove the locking shaft 113 on one set of single ear plates and the connecting ear seat 51, so that the connecting bracket 11 can rotate around the locking shaft 113 on the other set of single ear plates, push the flying arm 1 to rotate around the side locking shaft 113 to be parallel to the basic arm, so that the flying arm 1 is placed above the supporting locking frame 52, and the flying arm 1 is supported by the supporting locking frame 52. The relative position of the flying arm 1 and the supporting locking frame 52 is fixed by bolts, and then the side locking shaft 113 is removed. At this time, the flying arm 1 is fixed on the basic arm 83 and is completely separated from the end arm section 87;

[0090] like Fig.10As shown, the crane system 6 includes a pulley block 81, a hook 82, a wire reel 83, a wire rope 84, a hose reel 85, and a hydraulic winch 86. The hook 82 is mounted on the movable pulley of the pulley block 81, the fixed pulley of the pulley block 81 is mounted on the end arm section 87, the hydraulic winch 86 is mounted on the end of the basic arm away from the hook 82, the wire rope 84 drives the hydraulic winch 86 and the pulley block, and the hydraulic winch 86 realizes the lifting and lowering of the hook through the forward and reverse rotation of the wire rope 84. The wire reel 83 and the hose reel 85 are both mounted on the basic arm, and are used for the retraction and release of the cable and the hydraulic pipe respectively.

[0091] like Figures 2 to 12 As shown, the crawler chassis 6 includes hydraulic legs 61 and a chassis lower body 68, and the chassis lower body 68 includes a crawler track 681, a frame 682, a driving wheel 683, a plurality of crawler wheels 684, a rocker arm suspension 685, a supporting wheel 686, a tensioning cylinder 687, a tensioning wheel 688 and a buffer 689. A sub-frame 65 is fixed above the frame 682, and a slewing mechanism 7, a hydraulic system 63, a power system 66 and an electronic control system 67 are installed on the sub-frame 65. A hood 64 for protecting the power system 66 is installed outside the power system 66, and the crawler track 681 is a rubber crawler track;

[0092] Two groups of rocker arm suspensions 685 are symmetrically hinged on the two outer sides and near the middle of the frame 682. The middle part of the rocker arm suspension 685 is hinged on the frame 682 through a rocker arm rotating shaft 6851. The rocker arm suspension 685 is symmetrically installed with two track wheels 684 around the rocker arm rotating shaft 6851. The two track wheels 684 and the rocker arm rotating shaft 6851 form a tripod structure. The two track wheels 684 swing around the rocker arm rotating shaft 6851 through the rocker arm suspension 685. The two groups of rocker arm suspensions 685 on the same side of the frame 682 are at the same horizontal height and are symmetrically arranged with the length center of the frame as the symmetry axis. A supporting wheel 686 is also installed on the frame 682 between the two groups of rocker arm suspensions 685 on the same side.

[0093] A driving wheel 683 and a tensioning wheel 688 are respectively installed at the front and rear ends of the two outer sides of the frame 682, and the tensioning wheel 688 is connected to the frame 682 through a tensioning cylinder 687. Specifically, the rotating shaft of the tensioning wheel 688 is hinged on the frame 682 through a swing arm, the cylinder end of the tensioning cylinder 687 is fixed on the frame 682, and the piston rod end is hinged to the swing arm of the tensioning wheel 688. The swing arm of the tensioning wheel 688 is swung by the extension and retraction of the tensioning cylinder 687 to tension the track 681; the driving wheel 683, the track wheel 684, the supporting wheel 686 and the tensioning wheel 688 on the same side of the frame 682 are installed with the track 681, and the track 681 is driven to rotate by the driving wheel 683, and the driving wheel 683 is driven by the hydraulic system 63. The tensioning cylinder 687 is connected to the hydraulic system 63 through a buffer 689, and the hydraulic system 63 is powered by the power system 66.

[0094] The buffer 689 includes a valve block 6893, to which an accumulator 6891, a throttle valve 6892, a joint 6893 and a pressure gauge 6895 are connected. The tensioning cylinder 687 is connected to the joint 6893 through a hydraulic hose, and the throttle valve 6892 is connected to the hydraulic system 63 through a hydraulic hose. When the track needs to be tensioned, the throttle valve 6892 is opened, and the hydraulic oil of the hydraulic system 63 pushes the tensioning cylinder 687 to operate to tension the track. When the track encounters an obstacle during driving, the impact energy generated is retracted through the tensioning cylinder 687, and the accumulator 689 is compressed in the form of hydraulic oil reflux, so that the impact energy is converted into compression energy, reducing the impact on the vehicle body.

[0095] The sub-frame 65 includes a leg articulation seat 651, an engine connection seat 652 and a cargo box 653. The leg articulation seat is used to install hydraulic legs, and the cargo box is used to store and transport goods such as cross arms and hardware. The power system 66 is installed on the sub-frame 65 through the engine connection seat 652. A leg articulation seat 651 is provided at each of the four corners of the sub-frame 65. The leg articulation seat 651 is provided with an articulation hole. Two limiting holes are provided on the leg articulation seat 651 with the articulation hole as the center. A leg rotating shaft 6512 is inserted into the articulation hole. The leg rotating shaft 6512 is used to articulate the hydraulic leg 61 so that it can rotate in the leg articulation seat 651. The leg limiting shaft 6511 is inserted in the limiting hole. The leg limiting shaft 6511 is used to limit the horizontal rotation angle of the hydraulic leg 61. A sensor element 6513 for detecting whether the leg limiting shaft 6511 is inserted is also provided on the leg articulation seat 651 and in the two limiting holes. The sensor element 6513 is connected to the control system as a judgment on whether the hydraulic leg 61 is extended or retracted, thereby preventing the hydraulic leg 61 from accidentally extending or retracting when not in working state.

[0096] A second inclination sensor 62 is installed on the sub-frame 65. The hydraulic outrigger 61 includes a swivel seat 611, a travel switch 612, an outrigger 614, an outrigger oil cylinder 615, a support seat 617 and a pressure sensor 618. One end of the outrigger 614 is hinged to the lower end of the swivel seat 611 through a horizontally arranged tenth shaft 613, and the other end of the outrigger 614 is hinged to the support seat 617 through a horizontally arranged eleventh shaft 616. One end of the outrigger oil cylinder 615 is hinged to the upper end of the swivel seat 611, and the other end is rotatably installed on the eleventh shaft 616. The swivel seat 611 is provided with an axis hole matching the outrigger rotating shaft 6512 and a pin hole matching the outrigger limiting shaft 6511. The swivel seat 611 is installed in the outrigger articulated seat 651, and is vertically The leg rotating shaft 6512 inserted in the hinge hole and the shaft hole realizes the hinge connection between the swivel seat 611 and the leg hinge seat 651. When the hydraulic leg 61 rotates around the leg rotating shaft 6512, in the working position and the non-working position, the position of the hydraulic leg 61 is locked by the leg limiting shaft 6511 inserted in the limiting hole and the pin hole to ensure the stability of the hydraulic leg 61 in the working and non-working states. The swivel seat 611 is also equipped with a travel switch 612 for detecting the maximum rotation angle of the leg 614 in the working state. The leg cylinder 615 is also equipped with a pressure sensor 618 for detecting the pressure in the leg cylinder 615. The second inclination sensor 62, the pressure sensor 618 and the travel switch 612 are all connected to the control system.

[0097] like Fig.10 As shown, the slewing mechanism 7 includes a turntable 71, a slewing bearing 74 and a luffing cylinder arm 75. The fixed end of the slewing bearing 74 is fixed to the sub-frame 65, and the turntable 71 is installed on the movable end of the slewing bearing 74. The fixed end of the telescopic arm 8 is hinged to the turntable 71 through the twelfth axis 72, and one end of the luffing cylinder arm 75 is hinged to the turntable 71 through the thirteenth axis 73, and the other end is hinged to the middle part of the telescopic arm 8.

[0098] like Fig. 20 As shown, the cross arm auxiliary tooling 4 includes a linear moving mechanism, a limit block 412, a slide rail 413 and a cross arm seat 414. The linear moving mechanism is installed on the working platform 3 in the vertical direction, and the movable end of the linear moving mechanism is arranged on the outside of the working platform 3 and moves in the vertical direction. Two cross arm seats 414 are installed on the movable end of the linear moving mechanism, and the distance between the two cross arm seats 414 is greater than the outer diameter of the pole. A horizontally arranged slide rail 413 is installed on the cross arm seat 414, and the two slide rails 413 are arranged parallel to each other, and the distance between the two slide rails 413 is greater than the outer diameter of the pole.

[0099] Two limit blocks 412 are slidably mounted on each slide rail 413. The spacing between the two limit blocks 412 matches the spacing between the two cross beams on the cross arm. The top of the limit block 412 extends vertically out of the slide rail 413 to form a clamping end for connecting with the cross arm. A clamping groove 415 is provided on the clamping end of the limit block 412. The width of the clamping groove 415 matches the thickness of the wing plate at the bottom of the cross beam of the cross arm. Since the cross beam of the cross arm is generally made of L-shaped steel or I-shaped steel, When the crossarm is placed on the limit block 412, the wing plates at the bottom of the two crossbeams of the crossarm are respectively clamped in the grooves of the four limit blocks 412, so that the crossarm is horizontally supported on the slide rail 413. In this way, the crossarm can be moved in the vertical direction through the linear moving mechanism, so that the crossarm can be lowered from the top of the pole to the pole installation position, and the crossarm can be horizontally moved along the slide rail 413 through the limit block 412, so as to facilitate the adjustment of the distance between the crossarm and the pole, and further facilitate the installation of the crossarm.

[0100] Specifically, in this embodiment, the linear motion mechanism includes an upper slider group 41 , a connecting rod 42 , a guide rail 43 , a lower slider group 44 , a connecting rod 410 and a worm gear elevator 47 .

[0101] The front railing of the working platform 3 is provided with a hollow area for installing the cross arm auxiliary tooling 4 to form an installation area. Two guide rails 43 are fixed on both sides of the installation area of ​​the working platform 3 in the vertical direction. The turbine worm elevator 47 is installed at the bottom of the installation area. An upper slider group 41 and a lower slider group 44 are slidably installed on the guide rail 43. The upper slider group 41 is arranged above the lower slider group 44. A connecting rod 42 and a stop rod 45 are arranged between the two guide rails 43. The two upper slider groups 41 are connected by the connecting rod 42 to achieve linkage, and the two lower slider groups 44 are connected by the stop rod 45 to achieve linkage.

[0102] As an implementation of the turbine worm gear lift 47 of the present device, the turbine worm gear lift 47 is provided with two movable ends with opposite movement directions, and the two movable ends of the turbine worm gear lift 47 are respectively connected to the connecting rod 42 and the stop rod 45, and the cross arm seat 414 is hinged to the upper slider group 41 through the sixth shaft 411, and one end of the connecting rod 410 is hinged to the lower slider group 44 through the fifth shaft 49, and the other end is hinged to the bottom of the cross arm seat 414. With the above structure, the upper slider group 41 and the lower slider group 44 are synchronously approached and moved away from each other through the operation of the turbine worm gear lift 47, thereby realizing the conversion of the cross arm seat 414 between the expanded state and the stored state. In the expanded state, the two connecting rods 42 are away from each other and the distance between them is the largest, and the cross arm seat 414 is horizontally arranged. In the stored state, the two connecting rods 42 are close to each other and the distance between them is the smallest, and the cross arm seat 414 is vertically arranged.

[0103] In the above embodiment, further, the worm gear lift 47 includes a worm gear transmission mechanism and a screw 473, the screw 473 is arranged between the two guide rails 43 in the vertical direction, the worm gear transmission mechanism is fixed at the bottom of the installation area, the screw 473 is driven to rotate by the worm gear transmission mechanism, the worm gear transmission mechanism is driven by a motor or by a rotating handle, the screw 473 is provided with a first section of thread and a second section of thread with opposite rotation directions, the first section of thread of the screw 473 is connected with a first nut 472, and the second section of thread is connected with a second nut 474 to form two movable ends, the first nut 472 and the second nut 474 are respectively fixed on the stop rod 45 and the connecting rod 42, a plurality of second limiting holes are arranged on both sides of the installation area and along the length direction of the guide rail 43, the lower slider group 44 is provided with a second pin hole matching the second limiting hole, and the lower slider group 44 is locked on the guide rail by a dividing pin 48 inserted in the second limiting hole and the second pin hole.

[0104] As another embodiment of the worm gear lift 47 of the present device, the worm gear lift 47 is provided with two movable ends, the worm gear lift 47 includes a worm gear transmission mechanism and a screw 473, the screw 473 is arranged between the two guide rails 43 in the vertical direction, the worm gear transmission mechanism is fixed at the bottom of the installation area, the screw 473 is driven to rotate by the worm gear transmission mechanism, the worm gear transmission mechanism is driven by a motor or by a rotating handle, the screw 473 is threadedly connected with a first nut 472 and a second nut 474 to form two movable ends, the second nut 474 is fixed on the connecting rod 42, and the first nut 472 and the second nut 474 are threadedly connected to the screw 473 to form two movable ends, the second nut 474 is fixed on the connecting rod 42, and the second nut 474 is fixed on the connecting rod 42. A nut 472 is detachably connected to the stop rod 45, specifically: a first pin hole is provided on the first nut 472, and a first limiting hole matching the first nut 472 is provided on the stop rod 45, and the first nut 472 realizes the linkage between the first nut 472 and the stop rod 45 by means of a pin 46 inserted in the first pin hole and the first limiting hole; a plurality of second limiting holes are arranged on both sides of the installation area and along the length direction of the guide rail 43, and a second pin hole matching the limiting hole is provided on the lower slider group 44, and the lower slider group 44 realizes the locking of the position of the lower slider group 44 on the guide rail by means of a dividing pin 48 inserted in the second limiting hole and the second pin hole.

[0105] When in use, when the height of the slide rail 413 needs to be moved as a whole, the limit indexing pin 48 is pulled out, and the first nut 472 is connected and fixed to the stop rod 45 through the latch 46. At this time, the worm gear transmission mechanism is driven, and the connecting rod 42 and the stop rod 45 move upward or downward together, so that the overall up and down adjustment of the slide rail 413 can be achieved, and the accuracy of the cross arm installation is further improved;

[0106] When the slide rail 413 needs to be expanded or stored, the lower slide block group 44 is fixed on both sides of the installation area by the limit indexing pins 48, and the pin 46 between the first nut 472 and the stop rod 45 is pulled out. Under the drive of the worm gear elevator 47, the connecting rod 42 moves upward or downward, and the stop rod 45 does not move, thereby realizing the expansion or storage of the slide rail 413.

[0107] like Fig.19 As shown, the working platform 3 includes an operating box 31, casters 32, a first inclination sensor 33, a working bucket 34 and a radar 35. A controller is provided in the operating box 31 to control the movement of the flying arm 1. The casters 32 are installed at the bottom of the working bucket 34 to support and move the working bucket 34 on the road surface. The working bucket 34 is surrounded by railings. One side of the working bucket 34 is an installation area connected to the cross arm auxiliary tooling 4, and the other side is a connection area connected to the quick change device 2. The first inclination sensor 33 is installed on the working bucket 34 to detect the inclination value of the working platform and provide data for leveling the working platform. A plurality of radars 35 for platform obstacle avoidance are installed around the working bucket 34, and the radar 35 and the first inclination sensor 33 are both connected to the controller.

[0108] like Figures 16 to 18 As shown, the quick-change device 2 includes a quick-change frame 21, a swing cylinder 22, a quick-change fixed frame 23, a fourth shaft 24, a quick-change connecting rod 25 and a connecting shaft 28. The fixed end of the swing cylinder 22 is mounted on the quick-change frame 21, and the movable end is fixedly connected to the quick-change fixed frame 23 through the connecting shaft 28. The swing cylinder 22 drives the quick-change fixed frame 23 to swing horizontally. A vertically arranged mounting column is arranged on the connection area of ​​the working platform 3, and the quick-change fixed frame 23 is mounted on the mounting column of the working platform 3;

[0109] like Fig.16As shown, a weighing device is also installed between the quick-change device 2 and the working platform 3. The weighing device can calculate the total weight of the working platform 3 and all the loads on the working platform 3. In this way, when the flying arm is lifted, the total weight of the working platform 3 is calculated by the weighing device to ensure that the total load is within a limited range and prevent accidents caused by overload. The weighing device includes a top rod 26, a force sensor 27 and a quick-change connecting rod 25. The two sides of the quick-change fixing frame 23 are respectively hinged with two quick-change connecting rods 25 through a fourth axis 24. The two sides of the quick-change fixing frame 23 are respectively hinged with the two sides of the mounting column of the working platform 3 through the two quick-change connecting rods 25. A certain distance is set between the quick-change fixing frame 23 and the mounting column of the working platform 3. The quick-change fixing frame 23, the two quick-change connecting rods 25 and the mounting column of the working platform 3 form a parallelogram mechanism, so that the quick-change fixing frame 23 can be parallel to the mounting column of the working platform 3. The quick-change bracket 23 moves up and down a distance, and a force sensor 27 is fixed on one side of the quick-change bracket 23. A horizontally arranged top plate 29 is correspondingly fixed on the mounting column of the working platform 3 and directly above the force sensor 27. A vertically arranged top rod 26 is arranged on the detection end of the force sensor 27. In the initial state, the quick-change bracket 23 moves downward relative to the mounting column around the quick-change connecting rod 25 under the action of its own weight, and the top rod 26 does not contact the top plate 29. In the working state, the quick-change device 2 is lifted, and the quick-change bracket 23 moves upward relative to the mounting column. At this time, the top rod 26 contacts the top plate 29 and weighing begins; the force sensor 27 is connected to the controller, and the flying arm action is controlled by the controller. By using the parallelogram mechanism, the load applied to the top rod 26 by the working platform 3 and the load thereon through the top plate 29 is always a vertical force, which is the real load of the working platform 3, thereby realizing accurate weighing of the platform.

[0110] Furthermore, the top of the push rod 26 has a semicircular head on one side that contacts the top plate 29, and the bottom of the push rod 26 is provided with an external thread. The push rod 26 is threadedly connected to the threaded hole on the detection end of the force sensor 27. The height of the push rod 26 can be adjusted through threaded matching.

[0111] The quick-change frame 21 includes two parallel supporting plates 212, between which a horizontally arranged force transmission shaft 211 for connecting with the flying arm 1 is fixed on the top. The flying arm 1 is connected with the quick-change frame 21 through a connecting device 19.

[0112] like Figures 13 to 18As shown, the connecting device 19 includes a connecting frame 191, a guide shaft 192, a stop pin 193 and a safety pin 194. One end of the connecting frame 191 is provided with two first connecting plates 195 arranged in parallel for connecting with the flying arm, and the other end of the connecting frame 191 is provided with two second connecting plates 196 arranged in parallel for connecting with the quick-change frame 21. The top of the second connecting plate 196 is provided with a hook matching the size of the force transmission shaft, and the outer side of the second connecting plate 196 is also fixed with a horizontally arranged guide shaft 192. The support plate 212 is provided with a guide groove 213 at a position corresponding to the guide shaft 192. The second connecting plate 196 and the support plate 212 are also provided with safety pin holes matching in position. The connection state When the second connecting plate 196 of the connecting device 19 is connected, the hook on the top of the second connecting plate 196 is firstly connected to the force transmission shaft 211, and then the second connecting plate 196 rotates with the force transmission shaft 211 as the rotation axis, so that the two second connecting plates 196 are inserted between the two supporting plates 212 of the quick-change frame 21, and the guide shaft 192 on the second connecting plate 196 enters the guide groove 213 of the supporting plate, and the position of the second connecting plate 196 and the supporting plate 212 is adjusted by the movement of the guide shaft 192 along the guide groove 213, so that the second connecting plate 196 and the safety pin hole on the supporting plate are connected, and then the safety pin 194 is inserted from the safety pin hole of the second connecting plate 196 and the supporting plate to fix the relative position of the second connecting plate 196 and the supporting plate. In this way, the quick connection and disassembly of the connecting device 19 and the quick-change device 2 can be completed by installing and removing the safety pin 194, and the quick connection and disassembly of the flying arm and the working platform can be realized.

[0113] In this embodiment, an L-shaped plate 197 is fixed on the outer side of the second connecting plate 196, and the guide shaft 192 is fixed between the L-shaped plate 197 and the second connecting plate 196. Specifically, the L-shaped plate 197 and the second connecting plate 196 are correspondingly provided with axial holes matching the size of the guide shaft 192, and both ends of the guide shaft 192 pass through the axial holes and are limited by a stop pin 193 to prevent the guide shaft 192 from disengaging from the axial hole.

[0114] like Fig.12 As shown, the flying boom 1 includes a connecting bracket 11, a leveling cylinder 14, a luffing arm 15, a flying boom luffing cylinder 16, a connecting rod mechanism 18 and a connecting device 19.

[0115] One side of the connecting bracket 11 is connected to the telescopic end of the telescopic arm, and the upper end of the other side is hinged to one end of the luffing arm 15 through the first axis 12, and the lower end is hinged to one end of the flying arm luffing cylinder 16. The other end of the flying arm luffing cylinder 16 is hinged to the other end of the luffing arm 15 through the third axis 17; the luffing arm 15 realizes luffing movement by extending and retracting the flying arm luffing cylinder 16.

[0116] The connecting rod mechanism 18 includes an inner connecting rod 181 and an outer connecting rod 183, one end of the inner connecting rod 181 and the outer connecting rod 183 are hinged through the seventh shaft 182, the other end of the inner connecting rod 181 is hinged to the luffing arm 15 through the ninth shaft 185, the other end of the outer connecting rod 183 is hinged to the middle of the first connecting plate 195 of the connecting frame 191 of the connecting device 19 through the eighth shaft 184, the end of the first connecting plate 195 is hinged to the luffing arm 15, and one end of the leveling cylinder 14 is hinged to the luffing arm 15. The second shaft 13 is hinged on the luffing arm 15, and the other end is rotatably connected to the seventh shaft 182 of the connecting rod mechanism 18; the inner connecting rod 181 of the connecting rod mechanism 18 can be driven to move by the extension and contraction of the leveling cylinder 14, and the inner connecting rod 181 drives the outer connecting rod 183, and the outer connecting rod 183 drives the connecting device 19 to rotate around the hinge axis with the luffing arm 15, so as to realize the up and down swing of the connecting device 19; and then the automatic docking with the quick-change device 2 is realized by the up and down swing of the connecting device 19. After the quick-change device 2, the working platform 3 and the flying arm 1 are connected as a whole, the working platform is leveled by the action of the leveling cylinder 14, and the system automatically controls the extension and contraction of the leveling cylinder 14 in combination with the feedback signal of the first inclination sensor 33.

[0117] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A high-altitude construction vehicle with hoisting and cross-arm auxiliary functions, characterized in that: The invention comprises a crane system, a crawler chassis (6), a slewing mechanism (7), a telescopic arm (8), a flying arm (1), a quick-change device (2), a working platform (3) and a cross arm auxiliary tooling (4), wherein the crawler chassis (6) is provided with a slewing mechanism (7), a fixed end of the telescopic arm (8) is hinged on the slewing mechanism (7), and the telescopic arm (8) is provided with a crane system. The flying arm (1) is installed on the telescopic arm (8) through a conversion device. The flying arm (1) can be converted between a storage state and a working state through the conversion device. When the flying arm (1) is in the storage state, it is fixed on the fixed end of the telescopic arm (8). When it is in the working state, the flying arm (1) is fixed on the telescopic end of the telescopic arm (8). The working platform (3) is detachably connected to the flying arm (1) through a quick-change device (2). The cross arm auxiliary tooling (4) is installed on the working platform (3). The cross arm auxiliary tooling (4) includes a linear motion tooling The invention relates to a linear moving mechanism and a slide rail (413), wherein the linear moving mechanism is installed on the working platform (3) in the vertical direction, the movable end of the linear moving mechanism is arranged on the outside of the working platform (3) and moves in the vertical direction, and two horizontally arranged slide rails (413) are installed on the movable end of the linear moving mechanism, the two slide rails (413) are arranged parallel to each other, the distance between the two slide rails (413) is greater than the outer diameter of the pole (10), and a sliding member for supporting a cross arm (9) is slidably installed on each slide rail (413).

2. The aerial work construction vehicle with hoisting and cross arm auxiliary functions according to claim 1 is characterized in that: The sliding member comprises two limit blocks (412), the spacing between the two limit blocks (412) matches the spacing between the two cross beams on the cross arm (5), the top of the limit block (412) extends out of the slide rail (413) in the vertical direction to form a clamping end for connecting with the cross arm (5), and a clamping groove (415) is provided on the clamping end of the limit block (412), and the width of the clamping groove (415) matches the thickness of the wing plate at the bottom of the cross beam of the cross arm (5).

3. The aerial work construction vehicle with hoisting and cross arm auxiliary functions according to claim 1 is characterized in that: The linear motion mechanism comprises an upper slider group (41), a connecting rod (42), a guide rail (43), a lower slider group (44), a connecting rod (410) and a turbine worm gear lift (47); a front end railing of the working platform (3) is provided with a hollow area for installing a cross arm auxiliary tooling (4) to form an installation area (36); two guide rails (43) are fixed on both sides of the installation area (36) of the working platform (3) in a vertical direction; the turbine worm gear lift (47) is installed at the bottom of the installation area (36); an upper slider group (41) and a lower slider group (44) are slidably installed on the guide rail (43); the upper slider group (41) is arranged above the lower slider group (44); a connecting rod (42) and a connecting rod (410) are arranged between the two guide rails (43); The two upper slider groups (41) are connected to each other through a connecting rod (42) to realize linkage, and the two lower slider groups (44) are connected to each other through a stopping rod (45) to realize linkage. The turbine worm gear elevator (47) is provided with two movable ends with opposite movement directions. The two movable ends of the turbine worm gear elevator (47) are respectively fixedly connected to the connecting rod (42) and the stopping rod (45). Two cross arm seats (414) are respectively hinged on the two upper slider groups (41). The spacing between the two cross arm seats (414) is greater than the outer diameter of the electric pole (6). The slide rail (413) is fixed on the cross arm seat (414). One end of the connecting rod (410) is hinged on the lower slider group (44), and the other end is hinged below the cross arm seat (414).

4. The aerial work construction vehicle with hoisting and cross arm auxiliary functions according to claim 1 is characterized in that: The linear motion mechanism comprises an upper slider group (41), a connecting rod (42), a guide rail (43), a lower slider group (44), a connecting rod (410) and a turbine worm gear elevator (47); a hollow area for installing a cross arm auxiliary tooling (4) is provided on the front rail of the working platform (3) to form an installation area (36); two guide rails (43) are fixed on both sides of the installation area (36) of the working platform (3) in a vertical direction; the turbine worm gear elevator (47) is installed at the bottom of the installation area (36); and a connecting rod (410) is installed on the guide rail (43) for sliding. An upper slider group (41) and a lower slider group (44) are provided. The upper slider group (41) is arranged above the lower slider group (44). A connecting rod (42) and a stop rod (45) are arranged between two guide rails (43). The two upper slider groups (41) are connected to each other through the connecting rod (42) to realize linkage. The two lower slider groups (44) are connected to each other through the stop rod (45) to realize linkage. Two cross arm seats (414) are respectively hinged on the two upper slider groups (41). The spacing between the two cross arm seats (414) is greater than the outer diameter of the electric pole (6). The slide rail (413) ) is fixed on the cross arm seat (414), one end of the connecting rod (410) is hinged on the lower slider group (44), and the other end is hinged below the cross arm seat (414), the worm gear elevator (47) includes a worm gear transmission mechanism and a screw, the screw is arranged between the two guide rails (43) in the vertical direction, the worm gear transmission mechanism is fixed to the bottom of the installation area (36), the screw is driven to rotate by the worm gear transmission mechanism, the worm gear transmission mechanism is driven by a motor or by a rotating handle, and the screw on the screw A first nut and a second nut are connected in a thread to form two movable ends, the second nut is fixed on the connecting rod (42), the first nut is detachably connected to the stop rod (45), a plurality of second limiting holes (37) are arranged on both sides of the installation area (36) along the length direction of the guide rail (43), a second pin hole matching the limiting hole is provided on the lower slider group (44), and the lower slider group (44) is locked on the guide rail (43) by inserting a dividing pin (48) in the second limiting hole (37) and the second pin hole.

5. The aerial work construction vehicle with hoisting and cross arm auxiliary functions according to claim 4 is characterized in that: The first nut is provided with a first pin hole, the stop rod (45) is provided with a first limiting hole matching the first nut, and the first nut is linked with the stop rod (45) by means of a pin (46) inserted in the first pin hole and the first limiting hole.

6. The aerial work construction vehicle with hoisting and cross arm auxiliary functions according to claim 1 is characterized in that: The telescopic arm (8) comprises a basic arm and a plurality of arm sections mounted on the basic arm and slidably fitted together. The conversion device (5) comprises connecting ear seats (51) mounted on both sides of the end arm section (87) and a supporting locking frame (52) mounted on the basic arm and close to one end of the arm section for supporting the flying arm (1). The flying arm (1) is detachably connected to the end arm section (87) via a connecting bracket (11), so that the flying arm (1) has a working state and a storage state. In the working state, the two sides of the connecting bracket (11) are respectively detachably hinged to the connecting ear seats (51) on both sides of the end arm section (87). In the storage state, the connecting ear seat (51) and the connecting bracket (11) on one side are first disassembled, and the connecting bracket (11) is rotated around the hinge point on the other side. The flying arm (1) is rotated and folded to a state close to the basic arm and parallel to the basic arm. At this time, the flying arm (1) is placed above the supporting locking frame (52), and the flying arm (1) is supported by the supporting locking frame (52). The flying arm (1) is fixed on the supporting locking frame (52), and then the connecting ear seat (51) and the connecting bracket (11) on the other side are disassembled, and the flying arm (1) is completely separated from the end arm section (87), and the flying arm (1) is fixed on the basic arm of the telescopic arm (8).

7. The aerial work construction vehicle with hoisting and cross arm auxiliary functions according to claim 6 is characterized in that: The connecting ear seat (51) is a double-ear seat, the connecting bracket (11) comprises a flying arm connecting frame (112) and a telescopic arm connecting plate (111) connected to the flying arm connecting frame (112) as a whole, the flying arm (1) is hinged on the flying arm connecting frame (112), two telescopic arm connecting plates (111) form a group, the two groups of telescopic arm connecting plates (111) are symmetrically fixed on both sides of the flying arm connecting frame (112), one end of the telescopic arm connecting plate (111) extends out of the flying arm connecting frame (112) to form a single ear plate for connecting to the connecting ear seat (51), and the two single ear plates on the same group of telescopic arm connecting plates (111) form a group, a group of single ear plates respectively matches the positions of the two ear seats on the connecting ear seat (51), and the spacing between the two groups of single ear plates matches the spacing of the connecting ear seats (51) on both sides of the most end boom section (87). When the flying boom (1) is in a working state, two groups of single ear plates on the connecting bracket (11) are respectively hinged to two ear seats of the connecting ear seats (51) on both sides of the most end boom section (87) through a locking shaft (113), so that the flying boom (1) is connected to the telescopic arm (8), and the telescopic movement of the flying boom (1) is realized through the telescopic arm (8); When the flying arm (1) is in the storage state, a group of single ear plates and the locking shaft (113) on the connecting ear seat (51) are removed, so that the connecting bracket (11) can rotate around the locking shaft (113) on the other group of single ear plates, and the flying arm (1) is pushed to rotate around the locking shaft (113) on the side to be parallel to the basic arm, so that the flying arm (1) is placed above the supporting locking frame (52). The flying arm (1) is supported by the supporting locking frame (52). The connecting sides of the flying arm (1) and the supporting locking frame (52) are provided with fixing bolt holes corresponding to each other. The relative positions of the flying arm (1) and the supporting locking frame (52) are fixed by bolts installed in the fixing bolt holes, and then the locking shaft (113) on the other group of single ear plates and the connecting ear seat (51) are removed, so that the flying arm (1) is fixed on the basic arm, and the flying arm (1) is completely separated from the end arm section (87).

8. The aerial work construction vehicle with hoisting and cross arm auxiliary functions according to claim 1 is characterized in that: The crane system comprises a pulley block (81), a hook (82), a steel wire rope (84) and a hydraulic winch (86). The hook (82) is mounted on a movable pulley of the pulley block (81), and a fixed pulley of the pulley block (81) is mounted on a terminal arm section (87). The hydraulic winch (86) is mounted on an end of a basic arm away from the hook (82). The steel wire rope (84) connects the hydraulic winch (86) to the pulley block (81). The hydraulic winch (86) realizes the lifting and lowering of the hook (82) by the forward and reverse rotation of the steel wire rope (84).

9. The aerial work construction vehicle with hoisting and cross arm auxiliary functions according to claim 1, characterized in that: The crawler chassis (6) comprises hydraulic legs (61) and a chassis lower body (68), wherein four hydraulic legs (61) are symmetrically mounted on the front and rear sides of the chassis lower body (68), and the chassis lower body (68) comprises a crawler track (681), a frame (682), a driving wheel (683), a plurality of crawler wheels (684), a rocker arm suspension (685), a supporting wheel (686), a tensioning cylinder (687), a tensioning wheel (688) and a buffer (689). Two groups of rocker arm suspensions (685) are symmetrically hinged at the positions near the middle of the two outer sides of the frame (682), and the two groups of rocker arm suspensions (685) on the same side are at the same horizontal height and are symmetrically arranged with the length center of the frame as the symmetry axis. A supporting wheel (686) is also installed on the frame (682) between the two groups of rocker arm suspensions (685) on the same side, and two track wheels (684) are symmetrically installed on each group of rocker arm suspensions (685). The frame (682 ) are respectively provided with a driving wheel (683) and a tensioning wheel (688) at the front and rear ends of the two outer sides. The rotating shaft of the tensioning wheel (688) is installed on a swing arm. One end of the swing arm is hinged on the vehicle frame (682), and the other end is hinged to the piston rod end of the tensioning oil cylinder (687). The cylinder end of the tensioning oil cylinder (687) is fixed on the vehicle frame (682). The tensioning oil cylinder (687) is extended and retracted to make the swing arm of the tensioning wheel (688) swing to achieve tensioning of the crawler track (681). A crawler track (681) is installed on the driving wheel (683), the track wheel (684), the supporting wheel (686) and the tensioning wheel (688) on the same side. The crawler track (681) is driven to rotate by the driving wheel (683). The driving wheel (683) is driven by the hydraulic system (63). The tensioning cylinder (687) is connected to the hydraulic system (63) through a buffer (689). The hydraulic system (63) is powered by the power system (66).

10. The aerial work construction vehicle with hoisting and cross arm auxiliary functions according to claim 9, characterized in that: The middle part of the rocker arm suspension (685) is hinged on the vehicle frame (682) through a rotating shaft (6851); the rocker arm suspension (685) is symmetrically mounted with two track wheels (684) around the rotating shaft (6851); the two track wheels (684) and the rotating shaft (6851) form a tripod structure; the track wheels (684) swing around the rotating shaft (6851) through the rocker arm suspension (685).

11. The aerial work construction vehicle with hoisting and cross arm auxiliary functions according to claim 9, characterized in that: A sub-frame (65) is fixed above the frame (682), a second inclination sensor (62) and a leg hinge seat (651) are mounted on the sub-frame (65), and a leg hinge seat (651) is disposed at each of the four corners of the sub-frame (65). The hydraulic outrigger (61) comprises a swivel seat (611), a travel switch (612), an outrigger (614), an outrigger oil cylinder (615), a support seat (617) and a pressure sensor (618); one end of the outrigger (614) is hinged to the lower end of the swivel seat (611) via a horizontally arranged tenth shaft (613); the other end of the outrigger (614) is hinged to the support seat (617) via a horizontally arranged eleventh shaft (616); one end of the outrigger oil cylinder (615) is hinged to the upper end of the swivel seat (611); the other end is rotatably mounted on the eleventh shaft (616). On the eleventh axis (616), the outrigger (614) is hinged to the outrigger hinge seat (651) of the sub-frame (65) through a swivel seat (611); the swivel seat (611) is also equipped with a travel switch (612) for detecting whether the outrigger (614) rotates to a limit angle in a supporting state; the outrigger oil cylinder (615) is also equipped with a pressure sensor (618) for detecting the pressure in the outrigger oil cylinder (615); the second inclination sensor (62), the pressure sensor (618) and the travel switch (612) are all connected to a control system.

12. The aerial work construction vehicle with hoisting and cross arm auxiliary functions according to claim 9, characterized in that: The sub-frame (65) is also provided with a slewing mechanism (7), the slewing mechanism (7) comprising a turntable (71), a slewing bearing (74) and a luffing cylinder arm (75), the fixed end of the slewing bearing (74) being fixed to the sub-frame (65), the movable end of the slewing bearing (74) being provided with a turntable (71), the fixed end of the telescopic arm (8) being hinged to the turntable (71), one end of the luffing cylinder arm (75) being hinged to the turntable (71), and the other end being hinged to the middle of the telescopic arm (8).

13. The aerial work construction vehicle with hoisting and cross arm auxiliary functions according to claim 9, characterized in that: The auxiliary frame (65) is also equipped with a hydraulic system (63), a power system (66) and an electric control system (67), and a hood (64) for protecting the power system (66) is installed outside the power system (66).

14. The aerial work construction vehicle with hoisting and cross arm auxiliary functions according to any one of claims 1 to 13, characterized in that: The working platform (3) comprises an operation box (31), casters (32), a first inclination sensor (33), a working bucket (34) and a radar (35). A controller is arranged in the operation box (31), and the controller is used to control the movement of the flying arm and the swing of the working bucket. The casters (32) are installed at the bottom of the working bucket (34) to support and move the working bucket (34) on the road surface. The working bucket (34) is provided with railings around it. One side of the working bucket (34) is an installation area (36) connected to the cross arm auxiliary tooling (4), and the other side is a connection area connected to the quick change device (2). The first inclination sensor (33) is installed on the working bucket (34) to detect the inclination value of the working platform (3). A plurality of radars (35) for platform obstacle avoidance are installed around the working bucket (34). The radars (35) and the first inclination sensors (33) are both connected to the controller. The controller receives feedback signals from the radars (35) and the first inclination sensors (33) to control the flying arm to realize automatic leveling of the working platform (3).

15. The aerial work construction vehicle with hoisting and cross arm auxiliary functions according to claim 14, characterized in that: The quick-change device (2) comprises a quick-change frame (21), a swing cylinder (22) and a quick-change fixed frame (23); the fixed end of the swing cylinder (22) is mounted on the quick-change frame (21), and the movable end (28) is fixedly connected to the quick-change fixed frame (23); the swing cylinder (22) drives the quick-change fixed frame (23) to swing horizontally; a vertically arranged mounting column is arranged on the connection area of ​​the working platform (3); the quick-change fixed frame (23) is mounted on the mounting column of the working platform (3); the quick-change frame (21) comprises two parallel supporting plates (212); a horizontally arranged force transmission shaft (211) for connecting to a flying arm is fixed between the two supporting plates (212) and at the top thereof; the flying arm is connected to the force transmission shaft (211) via a connecting device (19).

16. The aerial work construction vehicle with hoisting and cross arm auxiliary functions according to claim 15, characterized in that: A weighing device is also installed between the quick-change device (2) and the working platform (3), and the weighing device includes a push rod (26), a force sensor (27) and a quick-change connecting rod (25). Two quick-change connecting rods (25) are respectively hinged on both sides of the quick-change fixing frame (23). The two sides of the quick-change fixing frame (23) are respectively hinged to the two sides of the mounting column of the working platform (3) through the two quick-change connecting rods (25). A spacing is provided between the quick-change fixing frame (23) and the mounting column of the working platform (3). (23), two quick-change connecting rods (25) and the mounting column of the working platform (3) form a parallelogram mechanism, a force sensor (27) is fixed on one side of the quick-change fixing frame (23), a horizontally arranged top plate (29) is fixed on the mounting column of the working platform (3) just above the force sensor (27), and a vertically arranged top rod (26) is arranged on the detection end of the force sensor (27). When in working state, the top of the top rod (26) abuts against the bottom of the top plate (29).

17. The aerial work construction vehicle with hoisting and cross arm auxiliary functions according to claim 15, characterized in that: The connecting device (19) comprises a connecting frame (191), a guide shaft (192), a stop pin (193) and a safety latch (194); one end of the connecting frame (191) is provided with two first connecting plates (195) arranged in parallel and used for connecting to the flying arm; the other end of the connecting frame (191) is provided with two second connecting plates (196) arranged in parallel and used for connecting to the quick-change frame (21); the top of the second connecting plate (196) is provided with a hook matching the size of the force transmission shaft (211); a horizontally arranged guide shaft (192) is also fixed on the outer side of the second connecting plate (196); the support plate (212) is provided with a guide groove (213) at a position corresponding to the guide shaft (192); the second connecting plate (196) and the support plate (212) are connected to the guide shaft (192); The plate (212) is also provided with a through hole with matching position to form a safety pin hole. In the connected state, the hook on the top of the second connecting plate (196) is clamped on the force transmission shaft (211), and the second connecting plate (196) rotates with the force transmission shaft (211) as the rotation axis, so that the two second connecting plates (196) are inserted between the two supporting plates (212). After the guide shaft (192) on the second connecting plate (196) slides into place in the guide groove (213) of the supporting plate (212), the safety pin holes on the second connecting plate (196) and the supporting plate (212) are connected, and the safety pin (194) is inserted in the safety pin holes of the second connecting plate (196) and the supporting plate (212), so that the relative position of the second connecting plate (196) and the supporting plate (212) is fixed.

18. The aerial work construction vehicle with hoisting and cross arm auxiliary functions according to claim 17, characterized in that: An L-shaped plate (197) is fixed on the outer side of the second connecting plate (196), and the guide shaft (192) is fixed between the L-shaped plate (197) and the second connecting plate (196).

19. The aerial work construction vehicle with hoisting and cross arm auxiliary functions according to claim 17, characterized in that: The flying arm (1) comprises a connecting bracket (11), a leveling cylinder (14), a luffing arm (15), a flying arm luffing cylinder (16), a connecting rod mechanism (18) and a connecting device (19). The connecting bracket (11) is used to connect with the telescopic end of the telescopic arm. The upper end of the connecting bracket (11) is hinged with a luffing arm (15), and the lower end is hinged with a flying arm luffing cylinder (16). The other end of the flying arm luffing cylinder (16) is hinged with the other end of the luffing arm (15). The luffing arm (15) realizes luffing movement through the extension and retraction of the flying arm luffing cylinder (16). The connecting rod mechanism (18) comprises an inner connecting rod (181) and an outer connecting rod (183), one end of the inner connecting rod (181) and the outer connecting rod (183) are hinged via a seventh shaft (182), the other end of the inner connecting rod (181) is hinged to the luffing arm (15), and the other end of the outer connecting rod (183) is hinged to the middle part of the first connecting plate of the connecting frame (191) of the connecting device (19), and the end of the first connecting plate is hinged to the luffing arm (15). One end of the leveling cylinder (14) is hinged on the luffing arm (15), and the other end is rotatably connected to the seventh shaft (182) of the connecting rod mechanism (18). The extension and retraction of the leveling cylinder (14) drives the inner connecting rod (181) of the connecting rod mechanism (18) to move. The inner connecting rod (181) drives the connecting device (19) to rotate around the hinge axis between the inner connecting rod (181) and the luffing arm (15) through the outer connecting rod (183), thereby realizing the up and down swinging of the connecting device (19).

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