Off-road aerial work vehicle

Abstract

The application relates to the technical field of engineering vehicles, and discloses an off-road aerial work vehicle, which comprises a chassis, a driving assembly, a work execution assembly and a power assembly. The driving assembly comprises a front drive axle, a rear drive axle, a transfer case, a first transmission shaft and a second transmission shaft. The first transmission shaft is in transmission connection between a first output shaft of the transfer case and the front drive axle, and the second transmission shaft is in transmission connection between a second output shaft of the transfer case and the rear drive axle. The work execution assembly comprises an execution mechanism and a hydraulic pump, and the hydraulic pump supplies hydraulic oil to the execution mechanism. The power assembly comprises an energy storage mechanism, a range extending mechanism, a first motor and a second motor. The energy storage mechanism can supply power to the first motor and the second motor. An output shaft of the first motor is in transmission connection with an input shaft of the transfer case, the second motor is in transmission connection with the hydraulic pump, and the range extending mechanism charges the energy storage mechanism. The vehicle solves the endurance problem of a pure electric vehicle, realizes reasonable utilization of energy and reasonable control of economic cost.

Description

Technical Field

[0001] This invention relates to the field of engineering vehicle technology, and more particularly to off-road aerial work vehicles. Background Technology

[0002] In the field of modern aerial work, aerial work platforms with off-road capabilities are the core tools for accomplishing aerial work tasks in harsh environments, and have been widely used in many scenarios such as municipal maintenance, power line repair, building installation, and garden pruning.

[0003] Currently, off-road aerial work platforms on the market are mainly based on pure fuel-powered vehicles. Pure fuel-powered models have significant drawbacks: their response speed is slow, and they cannot react in time to emergency work needs or when a quick adjustment of the work position is required, which greatly affects work efficiency; during operation, the engine needs to work continuously to ensure that the hydraulic system where the actuator is located can obtain sufficient hydraulic power in a timely manner, resulting in low energy utilization and high economic costs.

[0004] To address these issues with pure gasoline-powered vehicles, pure electric off-road aerial work platforms have emerged. However, due to the relatively harsh working environment, pure electric vehicles consume a lot of electricity and have poor range, requiring frequent charging during continuous operation. This not only interrupts the work process and reduces work efficiency, but also severely limits the use of pure electric vehicles in some outdoor work scenarios without convenient charging facilities.

[0005] In conclusion, there is an urgent need for off-road aerial work platforms to effectively solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide an off-road aerial work platform vehicle to solve the problems of slow response, low efficiency, high noise and environmental pollution of pure fuel-powered off-road aerial work platforms, and the problem of short range of pure electric off-road aerial work platforms.

[0007] This invention provides an off-road aerial work platform vehicle, which includes: Chassis; The drive assembly includes a front drive axle, a rear drive axle, a transfer case, a first drive shaft, and a second drive shaft. The front drive axle and the rear drive axle are respectively disposed at both ends of the chassis along the vehicle length direction. The transfer case is disposed between the front drive axle and the rear drive axle along the vehicle length direction. The first drive shaft drives the first output shaft of the transfer case to the front drive axle, and the second drive shaft drives the second output shaft of the transfer case to the rear drive axle. The work execution assembly includes an actuator and a hydraulic pump, the hydraulic pump supplying hydraulic oil to the actuator; The powertrain includes an energy storage mechanism, a range extender, a first motor, and a second motor. The energy storage mechanism can supply power to the first motor and the second motor. The output shaft of the first motor is driven to the input shaft of the transfer case, and the output shaft of the second motor is driven to the input shaft of the hydraulic pump. The range extender can charge the energy storage mechanism.

[0008] As a preferred technical solution for off-road aerial work vehicles, the energy storage mechanism and the range extender are respectively located on both sides of the chassis along the vehicle width direction, and the energy storage mechanism and the range extender are both located between the front drive axle and the rear drive axle along the vehicle length direction.

[0009] As a preferred technical solution for off-road aerial work platforms, the chassis includes: Two longitudinal beams extend along the length of the vehicle and are spaced apart along the width of the vehicle; The first fixing component includes two L-shaped brackets, which are fixed to a longitudinal beam. The two L-shaped brackets form an L-shaped groove, and the energy storage mechanism is disposed in the L-shaped groove. The second fixing component includes a housing and a cover plate. The housing is provided with an open receiving cavity. The cover plate closes the open cavity and is provided with a smoke exhaust channel communicating with the receiving cavity. The housing is fixed to another longitudinal beam. The range extender is disposed in the receiving cavity, and the smoke exhaust pipe of the range extender extends out from the smoke exhaust channel.

[0010] As a preferred technical solution for off-road aerial work vehicles, the first fixing component also includes a shock-absorbing and buffering structure, which is disposed between the L-shaped bracket and the energy storage mechanism.

[0011] As a preferred technical solution for off-road aerial work vehicles, the chassis is equipped with a slewing support; The actuator includes a rotating arm, a telescopic arm, a slewing platform, and a working platform. One end of the rotating arm is fixed to the slewing support, and the slewing support can drive the rotating arm to rotate around a pivot in the vehicle height direction. The other end of the rotating arm is fixedly connected to one end of the telescopic arm, and the other end of the telescopic arm is fixedly connected to the slewing platform. The telescopic arm is telescopic. The working platform is fixed to the slewing platform, and the slewing platform can drive the working platform to swing around a pivot in the vehicle height direction.

[0012] As a preferred technical solution for off-road aerial work platforms, the work platform includes a platform frame, a rotating partition, and a self-unloading door. The platform frame is disposed on the rotating platform and surrounds a working cavity with an opening. The rotating partition can selectively divide the working cavity into an operating area and a material area, and the self-unloading door can selectively close or open the opening.

[0013] As a preferred technical solution for off-road aerial work vehicles, the chassis includes two spaced and parallel longitudinal beams, the longitudinal beams extending along the vehicle length direction and the spaced direction between the two longitudinal beams along the vehicle width direction. The outrigger assembly includes two outrigger mechanisms, which are disposed on both sides of the chassis along the vehicle length direction. Each outrigger mechanism includes an outrigger box fixed to two longitudinal beams and two outrigger assemblies disposed on both sides of the outrigger box along the vehicle width direction.

[0014] As a preferred technical solution for off-road aerial work vehicles, the outrigger assembly includes an upper connecting rod, a lower connecting rod, outriggers, and a drive component. One end of the upper connecting rod is pivotally connected to the outrigger housing via a first pivot shaft, and the other end of the upper connecting rod is pivotally connected to the outrigger via a second pivot shaft. One end of the lower connecting rod is pivotally connected to the outrigger housing via a third pivot shaft, and the other end of the lower connecting rod is pivotally connected to the outrigger via a fourth pivot shaft. One end of the drive component is pivotally connected to the outrigger housing via a fifth pivot shaft, and the other end of the drive component is pivotally connected to the outrigger via the fourth pivot shaft. The first, fifth, and third pivot shafts are sequentially spaced along the vehicle height direction, and the second and fourth pivot shafts are sequentially spaced along the vehicle height direction.

[0015] As a preferred technical solution for off-road aerial work vehicles, in the outrigger mechanism, when the two outrigger components are fully extended, the maximum width of the two outrigger components along the vehicle width direction is a, and when the two outrigger components are fully retracted, the maximum width of the two outrigger components along the vehicle width direction is b, where 2≤a / b≤2.5.

[0016] As a preferred technical solution for off-road aerial work vehicles, in the outrigger mechanism, when the two outrigger components are fully retracted, the maximum width of the two outrigger components along the vehicle width direction is b, and the distance between the two outrigger mechanisms along the vehicle length direction is c, where 2.2≤c / b≤2.8.

[0017] As a preferred technical solution for off-road aerial work vehicles, the chassis also includes a pallet, which is located on one side of the longitudinal beam along the vehicle length direction and is fixedly connected to the outrigger box. Along the vehicle length direction, the pallet extends from the outrigger box in a direction away from the longitudinal beam. It also includes a driver's cab, which is fixed to the pallet.

[0018] The off-road aerial work vehicle provided by this invention has at least the following beneficial effects: This off-road aerial work platform includes a chassis, a drive assembly, a work execution assembly, and a powertrain. The drive assembly includes a front drive axle, a rear drive axle, a transfer case, a first drive shaft, and a second drive shaft. The front and rear drive axles are respectively located at both ends of the chassis along the vehicle's length. The transfer case is located between the front and rear drive axles along the vehicle's length. The first drive shaft connects the first output shaft of the transfer case to the front drive axle, and the second drive shaft connects the second output shaft of the transfer case to the rear drive axle. The work execution assembly includes an actuator and a hydraulic pump, which supplies hydraulic oil to the actuator. The powertrain includes an energy storage mechanism, a range extender, a first motor, and a second motor. The energy storage mechanism supplies power to the first and second motors. The output shaft of the first motor is connected to the input shaft of the transfer case, and the output shaft of the second motor is connected to the input shaft of the hydraulic pump. The range extender charges the energy storage mechanism. When this off-road aerial work platform vehicle is in operation, the energy storage mechanism supplies power to the first motor, which in turn inputs power to the transfer case. This power then drives the front and rear drive axles via the first and second drive shafts, respectively, enabling the vehicle to achieve four-wheel drive and off-road capability. Simultaneously, the second motor drives the hydraulic pump, which supplies high-pressure oil to the actuators to ensure their proper functioning. When the stored energy falls below a preset minimum threshold, the range extender activates, supplying the stored energy to the energy storage mechanism. The off-road aerial work platform vehicle supplies power to the first and second motors via an energy storage device, thereby enabling the drive assembly and work execution assembly to operate without the need for continuous engine operation. This achieves advantages such as fast response speed, high energy utilization rate, and low economic cost. At the same time, the range extender mechanism of this vehicle only starts working when the electrical energy stored in the energy storage device is below a preset minimum threshold, and stops working when the electrical energy stored in the energy storage device is above a preset maximum threshold. Similarly, there is no issue of continuous operation of the energy storage device. This solves the range problem of pure electric off-road aerial work platforms, thereby achieving rational energy utilization and reasonable control of economic costs. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the off-road aerial work vehicle in an embodiment of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the off-road aerial work vehicle in an embodiment of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the structure of the off-road aerial work vehicle in an embodiment of the present invention. Figure 3 ; Figure 4 This is a schematic diagram of the chassis structure of the off-road aerial work vehicle in an embodiment of the present invention. Figure 1 ; Figure 5 This is a schematic diagram of the chassis structure of the off-road aerial work vehicle in an embodiment of the present invention. Figure 2 ; Figure 6 This is an assembly diagram of the chassis and outrigger assembly of the off-road aerial work vehicle in an embodiment of the present invention.

[0020] In the picture: X: Length of vehicle; Y: Width of vehicle; Z: Height of vehicle; 1. Chassis; 11. Longitudinal beam; 12. Crossbeam; 13. First fastener; 131. Horizontal plate; 132. Vertical plate; 133. Shock absorption and buffer structure; 14. Second fastener; 141. Box body; 142. Cover plate; 1421. Smoke exhaust duct; 15. Slewing bearing; 16. Support plate; 2. Drive assembly; 21. Front drive axle; 22. Rear drive axle; 23. Transfer case; 24. First driveshaft; 25. Second driveshaft; 31. Actuator; 311. Rotating boom; 312. Telescopic boom; 313. Slewing platform; 314. Working platform; 3141. Platform frame; 3142. Rotating partition; 3143. Self-unloading hopper door; 41. Energy storage mechanism; 42. Range extender mechanism; 5. Outrigger mechanism; 51. Outrigger box; 52. Outrigger assembly; 521. Upper connecting rod; 522. Lower connecting rod; 523. Outrigger; 524. Drive component; 6. Driver's cab; 61. Driver's cab body; 62. Protective netting. Detailed Implementation

[0021] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Furthermore, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0023] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0024] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0025] like Figures 1 to 6As shown, this embodiment provides an off-road aerial work platform vehicle. The off-road aerial work platform vehicle includes a chassis 1, a drive assembly 2, a work execution assembly, and a power assembly. The drive assembly 2 includes a front drive axle 21, a rear drive axle 22, a transfer case 23, a first drive shaft 24, and a second drive shaft 25. The front drive axle 21 and the rear drive axle 22 are respectively located at both ends of the chassis 1 along the vehicle length direction X. The transfer case 23 is located between the front drive axle 21 and the rear drive axle 22 along the vehicle length direction X. The first drive shaft 24 connects the first output shaft of the transfer case 23 to the front drive axle 21. The transmission connection includes a second driveshaft 25 that connects the second output shaft of the transfer case 23 and the rear drive axle 22. The working assembly includes an actuator 31 and a hydraulic pump, which supplies hydraulic oil to the actuator 31. The powertrain includes an energy storage mechanism 41, a range extender 42, a first motor, and a second motor. The energy storage mechanism 41 supplies power to both the first and second motors. The output shaft of the first motor is connected to the input shaft of the transfer case 23, and the output shaft of the second motor is connected to the input shaft of the hydraulic pump. The range extender 42 charges the energy storage mechanism 41. When this off-road aerial work platform vehicle is in operation, the energy storage mechanism 41 supplies power to the first motor, which then inputs power to the transfer case 23. The power is then transmitted through the first driveshaft 24 and the second driveshaft 25 to drive the front drive axle 21 and the rear drive axle 22 respectively, achieving four-wheel drive and enabling off-road capability. Simultaneously, the second motor drives the hydraulic pump, which supplies high-pressure oil to the actuator 31 to ensure its normal operation. When the electrical energy stored in the energy storage mechanism 41 falls below a preset minimum threshold, the range extender 42 activates, supplying the electrical energy generated by the range extender 42 to the energy storage mechanism 41. The off-road aerial work platform vehicle supplies power to the first and second motors via the energy storage device, enabling the drive assembly 2 and the work execution assembly to operate without the need for continuous engine operation. This achieves advantages such as fast response, high energy utilization, and low economic cost. Furthermore, the range extender 42 only activates when the electrical energy stored in the energy storage mechanism 41 falls below the preset minimum threshold; it stops operating when the electrical energy stored in the energy storage mechanism 41 exceeds the preset maximum threshold. This eliminates the issue of continuous operation of the energy storage mechanism 41, thus solving the range problem of pure electric off-road aerial work platforms and achieving rational energy utilization and cost control.

[0026] Optionally, the energy storage mechanism 41 includes a power battery and an electronic control module. The electronic control module manages the charging and discharging of the power battery, and further enables the discharging of the first motor, the second motor, and all vehicle electrical equipment, while controlling the range extender mechanism 42 and the external charging gun to charge the power battery.

[0027] Optionally, the range extender 42 includes an engine, a generator, a power electronic controller, and a cooling system. The engine burns fuel to generate mechanical energy, the generator converts the mechanical energy into electrical energy, the power electronic controller adjusts the voltage and current, and the cooling system ensures that the range extender operates at a suitable temperature.

[0028] Optionally, the energy storage mechanism 41 and the range extender 42 are located on opposite sides of the chassis 1 along the vehicle width direction Y, and both are located between the front drive axle 21 and the rear drive axle 22 along the vehicle length direction X. In this embodiment, compared to the energy storage mechanism 41 and the range extender 42 being located on one side of the chassis 1 along the vehicle width direction Y, this arrangement can optimize the overall center of gravity of the vehicle body and prevent the center of gravity of the vehicle body from shifting along the vehicle width direction Y. On the other hand, it can prevent the energy storage mechanism 41 and the range extender 42 from affecting each other, such as the heat generated by the range extender 42 during operation affecting the performance of the power battery.

[0029] Optionally, the chassis 1 includes two longitudinal beams 11, a first fixing member 13, and a second fixing member 14. The longitudinal beams 11 extend along the length direction X of the vehicle, and the two longitudinal beams 11 are spaced apart along the width direction Y. The first fixing member 13 includes two L-shaped brackets, which are fixed to one longitudinal beam 11. The two L-shaped brackets form an L-shaped groove, and the energy storage mechanism 41 is disposed in the L-shaped groove. The second fixing member 14 includes a housing 141 and a cover plate 142. The housing 141 is provided with an open receiving cavity, and the cover plate 142 closes the open cavity. The cover plate 142 is provided with a smoke exhaust channel 1421 that connects to the receiving cavity. The housing 141 is fixed to another longitudinal beam 11, and the range extender 42 is disposed in the receiving cavity. The smoke exhaust pipe of the range extender 42 extends out from the smoke exhaust channel 1421. In this embodiment, the chassis 1 also includes a plurality of crossbeams 12, which are arranged sequentially at intervals along the vehicle length direction X and located between two longitudinal beams 11. The two ends of the crossbeams 12 are respectively fixed to the two longitudinal beams 11. This arrangement can improve the overall strength of the chassis 1.

[0030] The L-shaped bracket includes a horizontal plate 131 and a vertical plate 132 connected at right angles. The vertical plate 132 is fixedly connected to the corresponding longitudinal beam 11 so that the horizontal plate 131 is located in the horizontal plane. The energy storage mechanism 41 is disposed in the L-shaped groove. The horizontal plate 131 supports the energy storage mechanism 41 along the vehicle height direction Z, thereby fixing the energy storage mechanism 41 to the L-shaped bracket. Two L-shaped brackets are spaced apart along the vehicle length direction X.

[0031] The second fixing component 14 includes a housing 141 and a cover plate 142, which prevent external objects from damaging the range extender mechanism 42. The cover plate 142 is provided with an exhaust passage 1421 communicating with the receiving cavity, through which the engine's exhaust pipe can extend. The surface of the housing 141 is provided with multiple sets of matrix-arranged vent holes, which can dissipate heat from the range extender mechanism 42.

[0032] Optionally, the first fixing member 13 further includes a shock-absorbing buffer structure 133, which is disposed between the L-shaped bracket and the energy storage mechanism 41. In this embodiment, both the horizontal plate 131 and the vertical plate 132 of the first fixing member 13 are provided with shock-absorbing buffer structures 133. When the energy storage mechanism 41 is disposed in the L-shaped groove, the energy storage mechanism 41 and the first fixing member 13 press against the shock-absorbing buffer structure 133. When the vehicle is traveling on a rough road, the shock-absorbing buffer structure 133 can buffer the energy storage mechanism 41.

[0033] Optionally, the shock-absorbing and buffering structure 133 can be an elastic rubber pad. In other embodiments, the shock-absorbing and buffering structure 133 can also be an elastic steel plate. The elastic steel plate is arc-shaped. Taking the shock-absorbing and buffering structure 133 located on the horizontal plate 131 as an example, one end of the elastic steel plate is fixed to the horizontal plate 131, and the other end of the elastic steel plate abuts against the horizontal plate 131. When the elastic steel plate is subjected to the compressive force of the energy storage mechanism 41, the elastic steel plate undergoes elastic deformation, and the other end of the elastic steel plate slides relative to the horizontal plate 131.

[0034] Optionally, the chassis 1 is provided with a slewing support 15; the actuator 31 includes a rotating arm 311, a telescopic arm 312, a slewing platform 313, and a working platform 314. One end of the rotating arm 311 is fixed to the slewing support 15, and the slewing support 15 can drive the rotating arm 311 to rotate around the axis of rotation in the vehicle height direction Z. The other end of the rotating arm 311 is fixed to one end of the telescopic arm 312, and the other end of the telescopic arm 312 is fixed to the slewing platform 313. The telescopic arm 312 can extend and retract. The working platform 314 is fixed to the slewing platform 313, and the slewing platform 313 can drive the working platform 314 to swing around the axis of rotation in the vehicle height direction Z. In this embodiment, the actuator 31 achieves the maximization of the working envelope space and the refinement of the end-effector positioning through the kinematic decoupling design of "chassis 1 full-range slewing + rotating arm 311 amplitude variation + telescopic arm 312 radial extension + working platform 314 independent swinging posture adjustment", completely eliminating the working blind spot of the traditional fixed boom. Among them, the slewing platform 313 can drive the working platform 314 to swing around the axis of rotation in the vehicle height direction Z by an angle of α, -90°≤α≤+90°.

[0035] Optionally, the chassis 1's full-range rotation, the rotating arm 311's luffing, the telescopic arm 312's radial extension, and the work platform 314's independent posture adjustment are all executed through the hydraulic drive component 524. The second motor drives the hydraulic pump to work, and the pressure oil generated by the hydraulic pump is supplied to the hydraulic drive component 524.

[0036] Optionally, the working platform 314 includes a platform frame 3141, a rotating partition 3142, and a self-unloading door 3143. The platform frame 3141 is disposed on the rotary platform 313 and surrounds a working chamber with an opening. The rotating partition 3142 can selectively divide the working chamber into an operating area and a material area. The self-unloading door 3143 can selectively close or open the opening. In this embodiment, the rotating partition 3142 is rotatably disposed within the working chamber, thereby allowing the working chamber to form a single space for workers to work inside, or to divide the working chamber into two spaces, with workers in the operating area and materials in the material area. The self-unloading door 3143 is disposed on the platform frame 3141 and can be either a push-pull type or a rotating type. When workers enter the working chamber, the self-unloading door 3143 closes the opening; when workers need to leave the working chamber, the self-unloading door 3143 opens the opening.

[0037] Optionally, the chassis 1 includes two spaced and parallel longitudinal beams 11, with the longitudinal beams 11 extending along the vehicle length direction (X) and the spacing between the two longitudinal beams 11 along the vehicle width direction (Y). The outrigger assembly includes two outrigger mechanisms 5, which are disposed on both sides of the chassis 1 along the vehicle length direction (X). Each outrigger mechanism 5 includes an outrigger box 51 fixed to the two longitudinal beams 11 and two outrigger assemblies 52 disposed on both sides of the outrigger box 51 along the vehicle width direction (Y). In this embodiment, the connection between the outrigger box 51 and the longitudinal beams 11 not only connects the chassis 1 to the outrigger assembly but also improves the overall strength of the chassis 1. The two outrigger mechanisms 5 can stably support the off-road aerial work vehicle.

[0038] Optionally, the outrigger assembly 52 includes an upper connecting rod 521, a lower connecting rod 522, an outrigger 523, and a drive member 524. One end of the upper connecting rod 521 is pivotally connected to the outrigger housing 51 via a first pivot shaft, and the other end of the upper connecting rod 521 is pivotally connected to the outrigger 523 via a second pivot shaft. One end of the lower connecting rod 522 is pivotally connected to the outrigger housing 51 via a third pivot shaft, and the other end of the lower connecting rod 522 is pivotally connected to the outrigger 523 via a fourth pivot shaft. One end of the drive member 524 is pivotally connected to the outrigger housing 51 via a fifth pivot shaft, and the other end of the drive member 524 is pivotally connected to the outrigger 523 via a fourth pivot shaft. The first, fifth, and third pivot shafts are sequentially spaced along the vehicle height direction Z, and the second and fourth pivot shafts are sequentially spaced along the vehicle height direction Z. In this embodiment, the outrigger assembly 52 consists of an upper connecting rod 521, a lower connecting rod 522, an outrigger 523, and a driving component 524, forming a four-bar linkage structure. The upper connecting rod 521, the lower connecting rod 522, and the driving component 524 are connected to the outrigger box 51 and the outrigger 523 respectively through different pivot shafts. This structure not only enhances the stability of the outrigger 523, enabling it to withstand greater external forces and weight during operation and reducing swaying, but also allows for flexible movement of the outrigger 523, allowing for adjustment of its position and angle according to actual needs. Furthermore, it facilitates precise control of the outrigger 523's deployment and retraction, improving operational accuracy. Additionally, the outrigger 523 can be retracted when not in use, reducing space occupation and facilitating transportation and storage.

[0039] Optionally, the drive element 524 is a telescopic hydraulic cylinder.

[0040] Optionally, in the outrigger mechanism 5, when both outrigger components 52 are fully extended, the maximum width of the two outrigger components 52 along the vehicle width direction Y is 'a', and when both outrigger components 52 are fully retracted, the maximum width of the two outrigger components 52 along the vehicle width direction Y is 'b', where 2 ≤ a / b ≤ 2.5. In this embodiment, this ratio setting ensures that the minimum value of 'b' for the maximum width of the two outrigger components 52 along the vehicle width direction Y is minimized when the outrigger components 52 are retracted, and the maximum value of 'a' for the maximum width of the two outrigger components 52 along the vehicle width direction Y is maximized when the two outrigger components 52 are fully extended. The above ratio was obtained through numerous simulation experiments.

[0041] Preferably, a / b = 2.3.

[0042] Optionally, in the outrigger mechanism 5, when both outrigger assemblies 52 are fully retracted, the maximum width of the two outrigger assemblies 52 along the vehicle width direction Y is b, and the distance between the two outrigger mechanisms 5 along the vehicle length direction X is c, where 2.2 ≤ c / b ≤ 2.8. In this embodiment, when the ratio of c / b falls within the range of 2.2-2.8, the leveling range of each outrigger assembly 52 of the off-road aerial work platform can be greater than 12 degrees. The large leveling range of the outrigger assembly 52 allows the off-road aerial work platform to maintain a level position even on slopes of no more than 12 degrees in any direction. The above ratio was obtained through numerous simulation experiments.

[0043] Preferably, c / b = 2.6.

[0044] Optionally, the chassis 1 further includes a pallet 16, which is located on one side of the longitudinal beam 11 along the vehicle length direction X and is fixedly connected to the outrigger box 51. Along the vehicle length direction X, the pallet 16 extends from the outrigger box 51 in a direction away from the longitudinal beam 11. The off-road aerial work vehicle also includes a cab 6, which is fixedly mounted on the pallet 16. In this embodiment, two pallets 16 are provided, which are spaced apart along the vehicle width direction Y. The cab 6 is mounted on the two pallets 16, thus achieving stable support for the cab 6 by the two pallets 16.

[0045] Optionally, the cab 6 and the pallet 16 are fixed together by bolts.

[0046] Optionally, the bottom of the cab 6 is provided with insertion holes corresponding to the tray 16, with the axis of the insertion holes arranged along the length X of the vehicle. The tray 16 is inserted into the corresponding insertion holes. This arrangement can further improve the stability of the cab 6 and the tray 16.

[0047] Optionally, the cab 6 is symmetrically arranged with respect to the longitudinal center plane between the two longitudinal beams 11, which is located along the vehicle length direction X.

[0048] Optionally, the cab 6 includes a cab body 61 and a protective net 62. The protective net 62 is located outside the cab body 61 and covers the windshield on the cab body 61 to prevent foreign objects from falling and breaking the windshield.

[0049] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. An off-road aerial work platform vehicle, characterized in that, include: Chassis (1); The drive assembly (2) includes a front drive axle (21), a rear drive axle (22), a transfer case (23), a first drive shaft (24), and a second drive shaft (25). The front drive axle (21) and the rear drive axle (22) are respectively disposed at both ends of the chassis (1) along the vehicle length direction (X). The transfer case (23) is disposed between the front drive axle (21) and the rear drive axle (22) along the vehicle length direction (X). The first drive shaft (24) drives the first output shaft of the transfer case (23) to the front drive axle (21). The second drive shaft (25) drives the second output shaft of the transfer case (23) to the rear drive axle (22). The work execution assembly includes an actuator (31) and a hydraulic pump, the hydraulic pump supplying hydraulic oil to the actuator (31); The powertrain includes an energy storage mechanism (41), a range extender (42), a first motor, and a second motor. The energy storage mechanism (41) can supply power to the first motor and the second motor. The output shaft of the first motor is driven to the input shaft of the transfer case (23), and the output shaft of the second motor is driven to the input shaft of the hydraulic pump. The range extender (42) can charge the energy storage mechanism (41).

2. The off-road aerial work vehicle according to claim 1, characterized in that, The energy storage mechanism (41) and the range extender (42) are located on both sides of the chassis (1) along the vehicle width direction (Y), and the energy storage mechanism (41) and the range extender (42) are located between the front drive axle (21) and the rear drive axle (22) along the vehicle length direction (X).

3. The off-road aerial work vehicle according to claim 2, characterized in that, The chassis (1) includes: Two longitudinal beams (11) extend along the vehicle length direction (X) and the two longitudinal beams (11) are spaced apart along the vehicle width direction (Y); The first fixing member (13) includes two L-shaped brackets, the two L-shaped brackets are fixed to one of the longitudinal beams (11), the two L-shaped brackets are arranged to form an L-shaped groove, and the energy storage mechanism (41) is disposed in the L-shaped groove; The second fixing member (14) includes a box body (141) and a cover plate (142). The box body (141) is provided with an open receiving cavity. The cover plate (142) closes the open cavity and is provided with a smoke exhaust channel (1421) communicating with the receiving cavity. The box body (141) is fixed to another longitudinal beam (11). The range extender (42) is provided in the receiving cavity. The smoke exhaust pipe of the range extender (42) extends out from the smoke exhaust channel (1421).

4. The off-road aerial work vehicle according to claim 3, characterized in that, The first fixing member (13) also includes a shock-absorbing buffer structure (133), which is disposed between the L-shaped bracket and the energy storage mechanism (41).

5. The off-road aerial work vehicle according to claim 1, characterized in that, The chassis (1) is equipped with a slewing support (15); The actuator (31) includes a rotating arm (311), a telescopic arm (312), a rotary platform (313), and a working platform (314). One end of the rotating arm (311) is fixed to the rotary support (15), and the rotary support (15) can drive the rotating arm (311) to rotate around the axis of rotation in the vehicle height direction (Z). The other end of the rotating arm (311) is fixed to one end of the telescopic arm (312), and the other end of the telescopic arm (312) is fixed to the rotary platform (313). The telescopic arm (312) can extend and retract. The working platform (314) is fixed to the rotary platform (313), and the rotary platform (313) can drive the working platform (314) to swing around the axis of rotation in the vehicle height direction (Z).

6. The off-road aerial work vehicle according to claim 5, characterized in that, The working platform (314) includes a platform frame (3141), a rotating partition (3142), and a self-unloading hopper door (3143). The platform frame (3141) is located on the rotary platform (313). The platform frame (3141) surrounds a working chamber with an opening. The rotating partition (3142) can selectively divide the working chamber into an operating area and a material area. The self-unloading hopper door (3143) can selectively close or open the opening.

7. The off-road aerial work vehicle according to claim 1, characterized in that, The chassis (1) includes two spaced and parallel longitudinal beams (11), the longitudinal beams (11) extending in the direction of vehicle length (X), and the spaced direction of the two longitudinal beams (11) in the direction of vehicle width (Y). It also includes a support leg assembly, which includes two support leg mechanisms (5), which are arranged on both sides of the chassis (1) along the vehicle length direction (X). The support leg mechanism (5) includes a support leg box (51) fixed on the two longitudinal beams (11) and two support leg components (52) arranged on both sides of the support leg box (51) along the vehicle width direction (Y).

8. The off-road aerial work vehicle according to claim 7, characterized in that, The outrigger assembly (52) includes an upper connecting rod (521), a lower connecting rod (522), an outrigger (523), and a drive member (524). One end of the upper connecting rod (521) is pivotally connected to the outrigger housing (51) via a first pivot shaft, and the other end of the upper connecting rod (521) is pivotally connected to the outrigger (523) via a second pivot shaft. One end of the lower connecting rod (522) is pivotally connected to the outrigger housing (51) via a third pivot shaft, and the other end of the lower connecting rod (522) is pivotally connected to the outrigger housing (51) via a third pivot shaft. The first pivot, the fifth pivot and the third pivot are arranged at intervals along the vehicle height direction (Z), and the second pivot and the fourth pivot are arranged at intervals along the vehicle height direction (Z).

9. The off-road aerial work vehicle according to claim 7, characterized in that, In the outrigger mechanism (5), when the two outrigger components (52) are fully extended, the maximum width of the two outrigger components (52) along the vehicle width direction (Y) is a, and when the two outrigger components (52) are fully retracted, the maximum width of the two outrigger components (52) along the vehicle width direction (Y) is b, 2≤a / b≤2.

5.

10. The off-road aerial work vehicle according to claim 7, characterized in that, When the two outrigger components (52) are fully retracted, the maximum width of the two outrigger components (52) along the vehicle width direction (Y) is b, and the distance between the two outrigger mechanisms (5) along the vehicle length direction (X) is c, 2.2≤c / b≤2.

8.

11. The off-road aerial work vehicle according to claim 7, characterized in that, The chassis (1) also includes a pallet (16), which is located on one side of the longitudinal beam (11) along the vehicle length direction (X) and is fixedly connected to the outrigger box (51). Along the vehicle length direction (X), the pallet (16) extends from the outrigger box (51) in a direction away from the longitudinal beam (11). It also includes a driver's cab (6), which is fixed on the pallet (16).

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